Hamblin EcoFootprint

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Running Head: Ecological Footprint EssaySingle-use, plastic bottles vs. reusable, stainlesssteel bottles

ENVL 4300-DR. TAIT CHIRENJE

Single-use, plastic bottles vs.reusable, stainless steel bottles

Ecological Footprint Essay

April Lynn HamblinSpring 2013


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Ecological Footprint: Single-use, plastic bottles vs. reusable, stainless steel bottles 1

Table of Contents

1. Abstract.....page 12. Introduction...page 13. Background...page 2

i. Glass to plasticpage 2ii. Plastic to stainless steel...page 2

4. Bottle Battles: Debate regarding which bottle is better.....pages 3-4i. Common analysis of plastics vs. stainless steel....pages 3-4

5. Manufacturing and Materialspages 4-7i. Oil to make plastics......pages 4-5ii. Water....pages 5-6iii. Metals to make stainless steel...pages 6-7

6. Environmental and Economic Repercussionspages 7-13i. CO2 emissions......pages 7-8ii. Production wastes....pages 8-9iii. Land-use change ..........pages 9-10iv. Water.pages 10-11v. Waste....pages 11-13vi. Use..page 13

7. Shippingpages 13-15i. Case study with plastic water bottles.....pages 13-14ii. Case study with stainless steel bottles..page 14iii. Comparison......page 14-15

8. Conclusion: Consumers Choice.....page 159. Figures..pages 16-1810.References.pages 19-2511.Appendices...pages 26-29

i. Emissions calculations..page 26ii. Shipment calculations....pages 27-29

12.Acknowledgements.page 2


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Abstract

Single-use, plastic water bottles are compared to reusable stainless steel bottles. While an

environmental science major may cling to the stainless steel bottle, thinking it is 100% better

than the plastic bottles, this is not completely true. While plastic bottles do require enormous

amounts of oil, energy, and water to produce, stainless steel bottles also require similarly high

amounts of mining practices for the raw materials as well as energy and water. The true reason

that stainless steel bottles are better for the environment is because they do not produce as

much waste as the single-use plastic bottles do, for stainless steel bottles are reusable. Although

stainless steel bottles are a better option, they are by no means as eco-friend as I initially though.

Introduction

Last year, the environmental, community service, student-run organization called Water

Watch at Richard Stockton College of New Jersey bought about a thousand reusable, stainless

steel water bottles to give to students, staff, faculty, and guests at their events. As president of

Water Watch at that time, I though the reusable water bottles were a great way to promote the

hydration stations on campus for free, filtered water instead of paying for plastic water bottles.

After we received the bottles, which had excess packaging, I really started to think if they are

actually better for the environment than plastic water bottles and, if so, by how much. This essay

will look further into this question and lift the biased veil that may shelter our eyes, showing how

much stainless steel reusable water bottles are better than plastic water bottles, if better at all.


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Background

While some may think that bottled water is a new invention, the idea of collecting water

in a container and selling it has been around for centuries, and the idea of consuming water for

its healing properties has been around for thousands of years, as early as the Egyptians who

diverted the Nile to create portable water for agriculture (White Water Admin, 2012). According

to Professor Hall (2009), records of the earliest sold bottled water are from 1767 in Jacksons

Spa, Boston. Bottled water was popular because of the health benefits of drinking water.

Malvern in England is believed to be the first true company that produced actual bottled water

(White Water Admin, 2012). Once glass technologies came about in the nineteenth century, the

cost of bottled water became affordable and manufacturing became practical. In the twentieth

century, bottled water lost popularity for a while because municipalities were providing cheap,

safe drinking water, but, in 1977, bottled water started to become more popular. This was driven

again by the concern of safe, healthy drinking water and promoted initially by a company called

Perrier through importing water (Hall, 2009).

In 2004, companies such as Klean Kanteen started working on what they called a better

option than plastic and lined aluminum bottles: a safe, healthy, lightweight, reusable bottle free

of Bisphenol A (BPA) and other toxin substances or the stainless steel bottle (Klean Kanteen,

2013). In 2010, research conducted by the Socit de Calcul Mathmatique showed that stainless

steel production was increasing more than any other product in the world. According to the

International Stainless Steel Forum (2012), stainless steel is becoming more popular, for sales

have increased by 2.9% in the last year. It seems that Klean Kanteen were before their time.


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Bottle Battles: Debate regarding which bottle is better

While stainless steel becomes more popular, many today still use plastic water bottles.

Royte (2008) points out that plastic water bottles are very popular, despite the facts that

Americans live in a country where more than 89 percent of tap water meets or exceeds federal

health and safety regulations, regularly wins in blind taste tests against name-brand waters, and

costs 240 to 10,000 times less than bottled water, is an unparalleled social phenomenon, one of

the greatest marketing coups of the twentieth and twenty-first centuries. One of the main

differences between plastic water bottles and stainless steel water bottles is that the water already

comes in the plastic bottles and then you toss them; there is no need to find water and then clean

or care for the bottle. Royte (2008) continues to explain that this use of plastic water bottles

portrays the countries growing laziness and impatience. It also shows our insecurities with

germsour increasing need for individual cleanlinessas shown by many of our actions such as

having wipes for shopping carts and plastic bags for vegetables at grocery stores. Kennedy also

points out that plastic bottles are lightweight so they are easier to carry around than a heavier

stainless steel bottle, are transparent so people subconsciously link this to pure water, and are

relatively durable with a long shelf life until used. Most plastic water bottles are also made out of

a non-carcinogenic plastic (Oregon Environmental Council). Because of these factors, plastic

bottles are popular and used often, even though they contribute significantly to pollution, cost

more than tap water, and have similar or less requirements for health than tap water.

Much of the plastic water bottles success is due to the fact that people do not believe that

tap water is safe to drink. Tap water is also regulated more often than bottled water, if bottled

water is even regulated; plastic water bottle companies also do not have to tell the customer

where the water comes from, so much false advertisement makes media portray plastic water


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bottles as coming from a cleaner source than the tap, but this may not be correct (Goodman,

2009). Tap water quality is fine for most of the United States (The New York Times, 2013), so

people can generally trust the water or chose to buy filters.

Instead of simply grabbing and going with plastic water bottles, some people may

research the topic and chose stainless steel bottles instead. According to Bosque (2010), stainless

steel bottles are highly durable, do not contain plastic toxins, there are no known safety hazards,

more colors and sizes available, generally dishwasher safe, are relatively lightweight, and are hip

to use in modern culture. Their downfall is that they are not as convenient as plastic water

bottles, may get dented when dropped, could give the water a metallic taste, and may heat up in

the summer. Osterman (Nickel Institute) also agrees that customers are generally happy with

stainless steel, perhaps because of it highly resists corrosion, durability for decades, and low

maintenance requirements as well as being recyclable (Osterman,Nickel Institue). Freeman, the

policy director at Environmental Defense, also recommends using stainless steel bottles (Austen,

2008). These positive comments may be what stainless steel bottle users have read before they

make the change. While plastic water bottles have a large footprint, it is sometimes easy to forget

that stainless steel bottles have one as well, especially if you use a stainless steel bottle. It is

important to look at each to decide which has a smaller footprint, and by how much.

Manufacturing and Materials

When considering plastic, one must first understand where it comes fromoil. Oil is

made from thousands of year old fossils in the ground, mainly marine life such as algae and

plankton (Schirber, 2009). To get a barrel, oil is first pumped from the ground in the form of

crude oil. Figure 1 shows the general breakup a barrel of oil into its components (Gibson, 2009).


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The oil is then pumped into a boiler and a distillation column where it becomes petroleum for

making plastics (Freudenrich, a). Figure two shows this process visually.

After the process of obtaining the oil, it is then converted into plastic. The plastic that

makes up most plastic water bottles are called Polyethylene terephthalate (PET), which was

invented in 1941 (Freudenrich, b). PET is considered a safe, non-carcinogenic plastic (Oregon

Environmental Council) that is not known to leech estrogen at all or antimony at high levels, for

antimony levels are regulated (Facts on PET). Antimony is a non-carcinogenic compound that, in

short-terms, may cause skin and eye irritation, yet in long term, may cause more serious

respiratory effects like chronic bronchitis or emphysema (U. S. Environmental Protection

Agency, 2007). These plastics are large carbon-containing molecules called polymers,

composed of monomers. Monomers are similar to polymers, but shorter, arranged in a way that

makes plastics chemically inert so that they do not react with other chemicals (Freudenrich, b).

This chemical process produces polymer resins, which are pure polymer before additives and

reinforcements are added (Society of Plastics Engineers, 2008). These polymers resins are

converted into tiny droplets called nurdles. The nurdles are shipped from their processing facility

to the company that will create the plastic water bottles (Back2Tap, 2008).

Making plastic water bottles does not only require the use of PET to from the bottle, it

also requires other materials such as cardboard and more plastic for packaging. Corrugated

cardboard is made from paper and used to ship products; in the USA, 90% of the products

shipped use corrugated cardboard (Earth911, b, 2013). This high quality material is used because

it is well designed, has efficient costs, and creates rapid turnaround (Answers, 2013).

Once plastic water bottles are produced, before packaged, they also must be filled with

water. This makes the bottles convenient for those on the go. Different water bottle companies


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fill their bottles from different areas of water such as a spring or well, but the majorityabout

1/3comes from the regular tap (The Story of Stuff Project and Free Rand Studio, 2010).

The water that fills these bottles will also be available to the tap and hydration stations,

which people will use to fill their stainless steel reusable water bottles. The water is gathered

from a treatment plant that collects water from aquifers that accumulates from rain water or

streams (Back2Tap, 2008). As of 2004, the U. S. Environment Protection Agency stated that

most of peoples drinking water, about thirty percent, comes from the ground.

After the water is pumped from the ground, it is then treated with certain regulations.

Figure three shows a basic process of a water treatment plant. As well as treatment, facilities also

monitor for over eighty contaminants (U. S. Environmental Protection Agency, 2004). After this

water treatment, the water is then transferred to different areas, where it can be pumped for

drinking using different containers for the water such as from plastic bottles or stainless steel.

The first introduction of stainless steel occurred in 1911 (British Stainless Steel

Association, 2012).Stainless steel is a metal alloy made from steel, chromium, nickel,

manganese, and nitrogen which is heated and heat treatments such as annealing and descaling

(Key to Metals, 2008). Figure four portrays a typical stainless steel production facility. The metal

may also be refined to improve its cleanness (Key to Metals, 2008). Figure five shows one

process or cleaning, a vacuum oxygen decarburization unit. These materials are also packaged

using corrugated cardboard and require a lid, usually made of plastic.

Before making stainless steel, the raw materials, elements from the earth, must be mined.

From the Guidebook for Evaluating Mining Project EIAs, to mine, a proposed area is picked out

and cleared of vegetation for mines. These mines must also be readily available to the workers,


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so access roads are built. After this, then mining may occur for a number of years until the area is

closed and rehabilitated to its pre-mining habitat.

On a side note, both the plastic bottles made from PET and the stainless steel bottles

(because they do not have a plastic liner) do not contain bisphenol A (BPA)an industrial

chemical used in many plastics that is known to cause humans serious health problems such as

heart disease, diabetes, and developmental brain issues (Facts on PET; National Institute of

Environmental Health Science, 2012; Oregon Environmental Council; West, 2013). This is a

benefit of each bottle, for BPA may cause serious issues and should be avoided.

Environmental and Economic Repercussions

Both single-use, plastic water bottles and reusable, stainless steel bottles have negative

impacts on the environment around them, contributing significant amounts of CO2 emissions. In

2006, approximately 331 million barrels of oil were used to make plastics (U.S. Energy

Information Administration, 2012). Records for oil used to make plastic bottles have increased

to about 17 million barrels of crude oil used in America per year (Didier; Scholtus, 2009;

Back2Tap, 2008; Pacific Institute, 2006). Using facts such as these and standards from Bliss

(2008) there is about 5.9 million tons of CO2 emissions per year from crude oil.

According to Pacific Institute, in 2006, manufacturing every ton of PET for the plastic

water bottles creates 3 tons of CO2 emissions. As reported by U. S. Government Accountability

Office (2009), in 2006, the USA produced 827,000 to 1.3 million tons of plastic water bottles.

From crude oil and production emissions, there are about 9.8 million tons of CO2 emissions per

year. Use of plastic water bottles has been increasing (Didier), so this may be a higher value.

Stainless steel also contributes atmospheric CO2. One of the highest percentages of raw

materials in stainless steel is 27% nickel (Socit de Calcul Mathmatique, 2010). If the CO2


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emissions were used for nickel mining in 2007 worldwide, this caused about 25.5 million tons of

CO2, where about 60% is from the mine sites and 30% from shipping and processing (Farrell,

2009). The production of these raw materials, such as nickel, to be made into stainless steel is 2.8

tons of CO2 emissions per ton of stainless steel (Socit de Calcul Mathmatique, 2010).

The entire process of creating stainless steel also requires immense amounts of electricity

because of the required melting temperatures of metals to be combined into stainless steel, about

0.72 tons of CO2 per ton of stainless steel. From 2001-2008, 190 million tons of stainless steel

was produced, of about 23.75 million tons per year, where 20% of those were material goods

such as reusable bottles (Socit de Calcul Mathmatique, 2010).

According to the International Stainless Steel Forum (2012), 3.81 tons of CO2 emissions

are produced per tons of stainless steel. In 2012, China produced about 14 million tons of

stainless steel (International Stainless Steel Forum). About 20% of these went to material goods,

but the amount used for stainless steel bottles would be much less. For example, if about 1/3 of

the material goods were used for stainless steel bottles, this would create about 3.6 million tons

of CO2 emissions. While much CO2 emissions are produced from plastic bottles and stainless

steel bottles, it truly depends on quantity being produced. Since plastic bottles are single-use,

there must be more produced, which increases the total amount of CO2 emissions, causing a

greater footprint in this aspect, but if more people switch to using stainless steel bottles, this

would surely increase.

Both initial steps to the production of plastic and stainless steel bottles negatively impact

the environment with different types of wastes. Pumping this oil produces a number of wastes

which are generally created from brine (water and salt) mixing with materials and radionuclides

to form precipitates such as scale, sludge, and produced water which all contain radiation (U. S.


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Environmental Protection Agency, b.). Mining also produces many mine wastes such as

minerals, sediments, dust, gases, and chemicals (Edwards, Jamieson, & Lottermoser, 2011).

These byproducts, known as Technologically Enhanced Naturally Occurring Radioactive

Material (TENORM), may accumulate in ducts, pipes, valves, storage tanks, or may escape into

the environment as dusts and gamma radiation (Araujo et al.). Depending on exposure and

materials ingested, TENORMs are believed to be harmful to humans and the environment (U.S.

Environmental Protection Agency, 2000). Described by Princeton University (2012) these effects

of the ionizing radiation could cause short-term effects such as sickness and burns, or long-term

effects such as cataracts and cancer. Although oil and mining practices have TENORMs occur

often, these can also result from water treatment facilities (U.S. Environmental Protection

Agency, 2000). These health risks also affect the economy, causing more people to require

specific health services, which could cause insurances to fluctuate in cost.

Oil and mining processes also completely alter habitats, contributing to land-use change,

which causes loss of diversity. Both processes significantly alter the land by harvesting materials

that are found beneath the earth. Besides getting to these materials, other surrounding land must

be altered too, such as building access roads for workers. Both processes also could also result in

catastrophes that degrade surrounding ecosystems even more. Many humans and much wildlife

could lose their lives from events that result from pumping oil or mining such as oils spills and

earthquakes. Oil spills contaminate the surrounding land and sources of water, especially

polluting the ocean. These spills cause vast losses in the economy such as oil company losing

millions as well as fishing industries. Mining and extracting fossil fuels can also cause

earthquakes (Chirenje, a, 2013). Earthquakes can result in immense economic struggle, causing

damage that may take many years to repair.


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While these wastes and disasters are terrible for the environment, there is still more.

Paper product usage is one of the leading contributers to deforestation such as high quantities of

corrugate cardboard used if it is not made from recycled papers. Most corrugate cardboard comes

from fast growing pine trees that are grown in farmsagriculture and farms being the second

leading cause of deforestation (Tolluch, 2009)which are coated with pesticides and fertilizers

along with consuming much energy, water, and land space (Made How, 2013). Pumping oil also

contributes, but, as Tolluch (2009) explains, mining not only encompasses the seventh leading

cause, but it also requires building roads, the eighth leading cause of deforestation. Deforestation

alters the land to become a source of carbon instead of a sink, thus contributing to global climate

change by release of the green house gases such as CO2 and causes natural biodiversity loss.

Global climate change causes a loss in diversity and will ultimately change global ecosystems.

This will have effects on the economy, being very costly for society to cope with the changes

such as sea level rise, alterations in the hydrologic cycles, and intensified weather.

Deforestation along with building roads also impacts water. The impervious surfaces and

lack of trees cause runoff pollution. Water is an essential, scarce resource, where currently about

780 million people have no access to clean waterone in nine people (Water.org, 2013).

Because of its importance, findings in the Global Water Security report and major international

studies (Milner, 2012) predict water problems will rise within the next decade, partially due to

global requirements projected to rise 40% above present rates. These implications show that

water significantly affects the economy and may be the reason different areas go to war in the

future. This production of plastic and stainless steel bottles highly impacts water.

Pacific Institute (2006) evaluates that about three times the amount of the water actually

put into the plastic bottles is consumed in the process. Much water is also consumed while


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pumping the oil; some cases have shown to use as much water that could power 79,000

households (Finely, 2012) or anywhere from 6 to 12 million gallons a year, depending on

drought conditions of the environment (Gilmer & Vaidyanathan, 2012). The process of

producing stainless steel also requires water after the heat treatment process to cool the metal

(Made How, 2013) and washing the bottle every day requires water which will accumulate

throughout the year. Mining also uses water, for hard rock mines generally require water for

drilling. While different facilities and methods consume different amounts of water, Mavis

(2003) estimates that about 2,000 gallons per ton of finished product. For a year producing

stainless steel, about 2.8 billion gallons of water are consumed for materials goods, less for just

stainless steel bottles. It seems odd that both bottles, which are portrayed to give so much water

to the consumer, actually take away much more water in their production. If used at the same

rate, a single plastic bottle requires much less and would be more eco-friendly than a single

stainless steel bottle in this aspect, yet they are not.

Because plastic water bottles are single-use, they create much more waste than reusable

bottles, yet are more expensive than reusable bottles.This also affects the economy because

plastic water bottles are expensive. Tap water, which is generally used to fill the stainless steel

bottles and many plastic water bottles, costs about $0.49 per year, which is 0.035% the cost of

the plastic water bottles (The New York Times, 2013). If one takes all of the plastic water bottles

that the average American will drink, 167/year for about $1,400/year, it will be 50 billion water

bottles, which are able to circle around the earth over 5 times (The Story of Stuff Project and

Free Rand Studio, 2010). To prevent all of these plastic bottles literally circling the earth, they

must be recycled properly, or else they will cause much devastation to the environment.


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As explained by Earth911 (a, 2013), recycling conserves energy, reduces green house

gases, creates beneficial reuse of materials, and saves landfill space. The process of recycling

itself requires less energy than producing new materials. In 2007, 4 billion lbs of plastic recycled

amounted to enough energy to heat 2.1 million homes (Earth911, a, 2013). Recycling one ton of

plastic bottles saves 3.8 barrels of oil (Benefits of Recycling, 2013). Also, recycling one ton of

plastic saves between 6.5-7.5 cubic yards of space in a landfill (Benefits of Recycling, 2013;

Earth911, a, 2013).

While plastic bottles are the most recycled plastic in the USA (Benefits of Recycling,

2013), only about 20 percent of plastic water bottles are recycled (Baskind, 2010; Back2Tap,

2008; Didier). This means that at least 80 percent of plastic water bottles either end up in a

landfill, littered, or in the ocean. Didier explains that 2 million tons of plastic water bottles end

up in United States landfills alone. These bottles and others that are not recycled take 500-700

years to start decomposing (Bak2Tap, 2008) because, as mentioned earlier, plastics are

chemically inert so they do not readily break down (Freudenrich, b).

Because they take so long to decompose, they are a current and future issue of pollution

where billions, probably even more, bottles sit in landfills and float in the ocean. In 2008, enough

plastic was floating in the ocean to form a mass twice the size of Texas (Back2Tap). Akkhavong,

K. et al. (2009) studies indicate that plastic bottles contain organic comlbs and absorb organic

contaminants while they are in the ocean or in a landfill. These plastic bottles or pieces then

transfer their contaminants to living organisms. These contaminants also leech into the ocean as

well as the ground water through landfills, which harms the environment and wildlife

significantly (Akkhavong, K. et al., 2009). Barlaz et al. (2009) also reported that plastic and

plastic pieces are increasing in natural areas where they harm the ecosystems by directly


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impacting wildlife such as choking and starving animals, distributing invasive species, absorbing

toxins, and ingesting micro-plastic. Global distribution of micro-plastic fragments has increased

over the past decades and is likely to continue to do so (Barlaz et al., 2009).

While these bottles harm the environment if they are not disposed of properly, they also

may harm people if they are not used properlyplastic bottles are made for one time use. Walls-

Thumma conducted research and found that there were significantly more bacteria inside plastic

water bottles that have been reused. While these plastic bottles are made for one time usage,

stainless steel bottles are made to be used for years. Stainless steel is meant to last over ten years

(West Marine), usually ranging from fifteen to thirty years (John, 2013).

Even though these stainless steel bottles are made to have a long shelf-life, they do not

last forever. Once someone is finished with their bottle, the stainless steel bottle is recyclable

(ACUA, 2012), which lowers the CO2 emissions from producing stainless steel by 33% (Socit

de Calcul Mathmatique SA, 2010). According to the International Stainless Steel Forum (2012),

stainless steel is one of the worlds most recycled product, even over glass and paper; 80% to

90% of stainless steel is recycled. If it is not recycled, it may end up in a landfill, but this is

nowhere near the magnitude of waste of plastic bottles. This significant factor, along with the

reusability of the stainless steel bottles, makes their footprint smaller than the single-use plastic

water bottles in this aspect. Corrugate cardboard used for shipping is also recyclable.

Shipping

Since the most oil is shipped from Canada (Quote Oil, 2013), once can assume that the

oil is shipped from a particularly a large organization called Suncor Energy. This oil travels from

the Calgary airport to the Philadelphia airport, then to K & R Plastics in Cherry Hill, NJ. After

this, it is converted to nurdles and shipped from Cherry Hill to Pepsi Company in Mays Landing,


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NJ. It is then manufactured into Aquifina water bottles that are shipped to Richard Stockton

College where students, staff, and faculty who travel from their homes buy. One roundtrip would

amount for3,175.4 lbs CO2 emissions. If this process occurs once a month, that amounts for

38,104.4 lbs CO2 emissions per year for roundtrips; if this process occurs once a week, that

amounts for 152,417.5 lbs CO2 emissions per year for round trips; if this process occurs with

further traveling distances than close areas in New Jersey, the CO2 emissions would increase

significantly.

Since China produces 70% of the worlds stainless steel (International Stainless Steel

Forum, 2012), China most likely ships the steel to America for the bottles to be made, or ships

the final product. Outokumpu in Shanghai, China is one of the worlds largest stainless steel

producers (China Daily, 2012). If raw materials were shipped from Shanghai Kadi Metal Mining

Company to Outokumpa and then made into stainless steel bottles, they would then be shipped

from Outokumpa, China to Discount Mugs in Miami, Florida. The bottles then were shipped to

the Philadelphia airport. After this, the bottles were taken from Philadelphia to Stockton, and

students drove there as well, causing about 14,655.5 lbs of CO2 emissions per roundtrip (Federal

Transit Administration, 2003-2013). If this roundtrip occurred once a month, it would amount to

175,866.3 lbs CO2 emissions. If this were to occur once a week for a year the amount of CO2

emissions would be 703,465.3 lbs.

If one compares the CO2 emissions from shipment for plastic bottles and stainless steel

bottles, one can see that, because stainless steel generally is produced in China and must be

transported mostly by plane, the CO2 emissions are much greater for stainless steel. If the plastic

bottles came from a different country or even a different state, this would then level out the CO2

emissions for each material. With this case study, though, the CO2 emissions for shipping


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stainless steel are significantly higher than plastic bottles. Transporting costs for recycling at the

ACUA would add additional CO2 emissions to each case study.

Conclusion: Consumers Choice

If consumers want to spend significantly less money and use a bottle that creates less

waste from the end product, then the consumer should use stainless steel bottles. It would be a

lie, though, to say that stainless steel bottles are completely green. Both plastic and stainless steel

require huge amounts of energy and water to produce while giving off many CO2 emissions.

Mining and shipping containers contribute significantly to deforestation, while producing and

shipping stainless steel requires tons of energy. Although stainless steel bottles are not as eco-

friendly as I initially thought. How much better one bottle over the other relies on human

consumption of the product. Since single-use, plastic water bottles are consumed on such a

greater scale than reusable, stainless steel bottles, the plastic bottles are more harmful to the

environment. The true reasons that make stainless steel bottles better are the fact that they can

be used for decades before recycled and are recycled at a higher rate than plastic bottles, they are

safer for human health, and they cost less.


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Figures

Figure 1: Diagram of Barrel of oil

(Gibson, 2009).

Figure 2: Method of refining oil (Gibson, 2009).


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Figure 3: Water treatment plant diagram (U. S. Environmental Protection Agency, 2004).

Figure 4: A typical stainless steel production facility (Key to Metals, 2008).


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Figure 5: Vacuum Oxygen Decarburization (VOD) unit (Key to Metals, 2008).


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Appendices

i. Emissions Calculations17 million barrels of crude oil used in America per year (Didier; Scholtus, 2009; Back2Tap,

2008; Pacific Institute, 2006). Using facts such as these and standards from Bliss (2008) there is

about 5.9 million tons of CO2 emissions per year from crude oil.

17,000,000 X 317 kg = 5.4 billion kg5,400,000,000 kg X 2.20462 kg/ 1 pound = 11.8 billion lbs

11,800,000,000 lbs X 1 ton/ 2,000 lbs = 5.9 million tons

According to Pacific Institute, in 2006, manufacturing every ton of PET for the plastic water

bottles creates 3 tons of CO2 emissions. From crude oil and production emissions, there are about

9.8 million tons of CO2 emissions per year.

3 tons of CO2 emssions X 1.3 million tons = 3.9 million tons of CO2 emissions3.9 million tons of CO2 emissions + 5.9 million tons of CO2 emissions =

9.8 millino tons of CO2 emissions

According to the International Stainless Steel Forum (2012), 3.81 tons of CO2 emissions are

produced per tons of stainless steelthis would create about 3.6 million tons of CO2 emissions.

14,000,000 million tons of stainless steel X 0.2 / 3 = 0.93333333 million tons ofstainless steel

0.933333333 million tons of stainless steel X 3.81 tons of CO

2

emissions/ 1 ton of

steel = 3.6 million tons of CO2 emissions


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ii. Shipment CalculationsFuel Conversions

Jet Fuel contributes 70.88 kg CO2 / MMBtu (U. S. Energy Information Agency, 2013)70.88 kg CO2 / MMBtu X 2.20462 kg/ pound = 156.3 lbs CO2 / MMBtu

156.3 lbs CO2 / MMBtu X 1Btu/ 1,000,000 MMBtu = 0.00015626 lbs CO2 / Btu

0.00015626 lbs CO2 / Btu X 124,884.4 Btu/ gallon = 19.5 lbs CO2 / gallon

Plastic Water Bottle Shipment Case Study

Oil Shipment Roundtrip: 22.4 miles/ 6 miles per gallon for delivery truck= 3.7 gallons

3.7 gallons X 20 lbs CO2 emissions/ gallon = 74.7 lbs CO2 emissions

4049.2 miles/ 30 miles per gallon for airplane = 135 gallons

135 gallons X 19.5 lbs CO2 emissions/ gallon = 2,632 lbs CO2 emissions

36 miles/ 6 miles per gallon for delivery truck = 6 gallons

6 gallons X 20 lbs CO2 emissions/ gallon = 120 lbs CO2 emissions

Nurdles Shipment Roundtrip: 80 miles/ 6 miles per gallon for delivery truck= 13.3 gallons


20 miles/ 6 miles per gallon for delivery truck = 3.3 gallons


Customer Shipment Roundtrip: 20 miles/ 26 miles per gallon for average vehicle

= 0.77 gallons


74.7 + 2,632 + 120 + 266.7 + 66.7 + 15.4 = 3,175.4 lbs CO2 emissions


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3,175.4 lbs CO2 emissions X 12 = 38,104.4 lbs CO2 emissions 3,175.4 lbs CO2 emissions X 12 = 152,417.5 lbs CO2 emissions

Stainless Steel Bottle Shipment Case Study

Raw Materials Shipment Roundtrip: 15 miles/ 6 miles per gallon for delivery truck= 2.5 gallons

2.5 gallons X 20 lbs CO2 emissions/ gallon = 50 lbs CO2 emissions

468 miles/ 6 miles per gallon for delivery truck = 78 gallons

78 gallons X 20 lbs CO2 emissions/ gallon = 1,560 lbs CO2 emissions

Bottle Shipment Roundtrip: 100 miles/ 6 miles per gallon for delivery truck= 16.7 gallons


16,831.4 miles/ 30 miles per gallon for airplane = 561 gallons

561 gallons X 20 lbs CO2 emissions/ gallon = 10,940.4 lbs CO2 emissions

24.9 miles/ 6 miles per gallon for delivery truck = 4.1 gallons


2,036 miles/ 30 miles per gallon for airplane = 67.9 gallons

67.9 gallons X 20 lbs CO2 emissions/ gallon = 1,323.4 lbs CO2 emissions

105 miles/ 6 miles per gallon for delivery truck = 17.5 gallons


Customer Shipment Roundtrip: 20 miles/ 26 miles per gallon for average vehicle= 0.77 gallons



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50 + 1,560 + 333.3 + 10,940.4 + 83 + 1,323.4 + 350 + 15.4= 14,655.5 lbs CO2 emissions

14,655.5 lbs CO2 emissions X 12 = 175,866.3 lbs CO2 emissions 14,655.5 lbs CO2 emissions X 12 = 703,465.3 lbs CO2 emissions

Acknowledgements

Id like to thank Michelle Bellinger for explaining how the ACUA conducts its business, even

though this was not specifically used in the essay, it helped me understand the processbetter. Id

also like to thank Jackie Kondrk for explaining the ideas behind understanding the combustion of

a gallon of gasoline. Id like to thank Dr. Chirenje for confirming questions Ive had about this

essay. But most of all, Id like to thank all those who use items and sincerely think about what

went into the product and appreciate it; I know I have been converted to this type of person

because of this essay and am grateful for that.

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