q3 Practice

7/26/2019 q3 Practice

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- there is no further use, nothing can be done, hence must be disposed

- euent of unwanted surplus substance arising from application of any process

- any substance w/c requires to be disposed of as being contaminated or otherwise spoiled

found in household and commercial areas

found in factories

- measure of alkalinity and acidity of the wastewater

chemical approach to measure the amount of oxygen equivalent to the portion of organic matter that is susceptible to

oxidation by using a strong oxidant

biological approach to measure amount of oxygen required by the aerobic bacteria to oxidize !"#$% the organic

approximation of the amount of organic substances that are extracted for aqueous solution of suspension by hexane

to&'() to the initial weight of the sample is measured

anaerobic digester where decomposition/breakdown of organic matter is taking place*

capacity of water to neutralize acids due to carbonate or bicarbonates and expressed in milligrams per liter of calcium

carbonate equivalent

biochemical decomposition of organic matter, facultative and a wide variety of anaerobic bacteria hydrolyze and convert

the complex materials to from low-molecular weight compounds such as short-chain fatty acids bec* $hey can be distilled

at atm* +ressure

measure of the undissolved particulate matter where the dry solids are captured by ltering a known volume of sample

approximation of organic content of the sample where the ratio of the weight of dry matter lost in heating a sample to

(') to the initial weight of sample measured

irreversible inhibition of both acidogenic and methanogenic bacteria

wastewater that .ows into each unit of operation of the wastewater treatment plant that is partially or completely

treated

breakdown of man-made and naturally occurring compounds to their constituent elements and compounds by microbial

action through dierent biological renewal cycles

used to measure amount of dissolved oxygen in aeration tank

0iological $reatment

treatment process where the microorganisms require oxygen for their metabolism to biodegrade organic matter

breakdown/decomposition of almost all kinds of organic matter by the action of a wide range of microorganisms,

principally methane bacteria

use chemicals to destroy or neutralize toxicity and pollution

settling, sedimentation, ltration, .otation, evaporation and distillation

#12#3$#4"5 67 #3#"8609) $8"#$:"3$ %

+9+934

- is termed as absolute viscosity and dynamic viscosity*

- is a dierent from absolute viscosity*

tube with around cross section conforming to the dimensional requirements for nominal pipe size

hollow product of round or any other cross section having continuous periphery


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commonly used ;oint in cast iron pipe* "ach piece is made w/an enlarged diameter or bell at one end into w/c the plain

or spigot end of another piece is inserted when laying* $he ;oint is then made tight by cement, oakum, lead, or rubber

caulked in to the bell round the spigot*

steel pipe that has not been galvanized

part of a valve used to guide and supports the valve steam

ate, the branch of w/c is larger than the run

a welded pipe ;oint made with the ends of the two pipes butting each other,

steel pipe that owes its properties chie.y to the carbon w/c it contains

valve designed to allow a .uid to pass through in one direction only

multi piece ;oint with cup shaped threaded nuts which when tightened, compress

tapered w so that they form a tight ;oint on the periphery of the tubing they connect

small tting with a double oset or shaped like the letter < w/ the ends turned out

a large radius bend in a pipeline to absorb longitudinal expansion on the pipe line due to heat

steel pipe coated with zinc to resist corrosion

valve employing a gate, often wedge-shaped, allowing .uid to .ow when the gate is lifted from the seat* 5uch valves

have less resistance to .ow than globe valves-stop valve or isolation valve

one w/a somewhat globe-shaped body w/a manually raised or lowered disc w/c when closed rests on a seat so as to

prevent passage of a .uid -hole ling service and close regulation of .ow

a larger pipe or drum into which each of a group of boilers is connected

a tting w/a number of branches in l ine connecting to smaller pipes* to &>'? k+a

known as random length* 8un if mill pipe is @=='mm to '''mm in length

one designed to pen automatically to relieve excess pressure

a length of pipe made of more than one piece of pipe

a .anged curved to t a boiler or tank and to be attached to a threaded pipe

a .ange screwed on the pipe which is connected to ad;oining pipe

a ;oint made by use of a socket weld tting which has a prepared female end or socket for insertion of the pipe to which

it is welded

an elbow with male thread on one end, and female thread on the other end

an iron rened to a plastic state in a pudding furnace* )haracterized by the presence of about ABof slag irregularly

mixed with pure iron and about '*('B carbon

refers to both wrought steel and wrought iron

- water / steam / acidCalkalis / - air -electricity -gases oil-mineral vegetable or animal, .ammable or combustible

other .uids, including drainage pipes unless the drain is to a particular service reght hazardous service

2elocity in +ipelineD

liquidD pump, 07E liquidD city water

steamD saturated steamD turbine steamD superheated


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airD blower airD compressor F gasD lowChigh pressure

gasD smoke tube

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- the vertical distance in feet from the pump centreline to the point of delivery

vertical distance in feet, between supply level and the discharged level of the liquid being handled

sum of the static suction lift, suction function head, entrance loss in the suction pipe and the suction velocity head

static suction head minus the suction friction head and suction piping entrance loss plus any pressure in the suction line

pump moves a liquid from a source located above or below the pump but open to atmosphere

which the liquid circuit is not open to atmosphere

centrifugal pump in which pressure is developed by propelling of faning action of the vanes of the impeller on the liquid

measure condensate, feed water, and pump discharge

#98 )6:+8"5568, 0G6E"85 #31 931@ :+a gage* 9t is not water

cooled A( psi or >*( bars and below% as the aided expense of cooling system is not ;ustied by the slight gain at these

pressures* - raises fermented )6> pressure from >J I>' to (-?psig C necessary to overcome pipe friction

raises pressure of )6> gas to >(' psig so that it can be liqueed at &'' 7

machine used to compress air or gas to a .uid pressure above '*>@:pa, water cooled above A(psi or >*(bar

machine that decreases the volume and increases the pressure of a quantity of air by mechanical means

- used for low and medium pressures, consists of bladed wheel or impeller that spins inside a closed circular housing

in an air compressor system is used to reduce the work needed during compression

- is the temperature below which condensation occurs after the air is expanded again to the atmosphere*

is the temperature below which condensation occurs at the pressure the air is at )66G934 $6E"85

device for reducing the temperature of a liquid, usually water by bringing it into contact with airstream where a small

portion of the liquid is evaporated and the ma;or portion is cooled

uses the natural movement of air in cooling the water

uses fans or blowers to cause air movement in the cooling tower

pressure is exerted at the inlet of air to the tower by the fan

pressure is exerted between the outlets of air in the tower - draws the .ue gas from the system and sends them up the

stack

- water losses from cooling towers

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from one point to another

considers the systems, equipment practices and requirements

- involves a wider range of planning and analysislocation of activity, sizing , storage equipment, packaging methods

available for intermediate storage, containment and scaling of products

primary function of a cyclone is to separate product from a gas steam, after separation, the product discharges out thebottom of the cyclone and air discharges through the top exhaust

automated .exible conveyor is a natural addition to the companyMs multi purpose spiral feeder conveyor system

a mechanical system for transporting materials from one site to another

used in horizontal transportation of materials where food nourishment chemical, mining, saw dust and soil industry,

grain silos and grain handling

passing the malt between two closely spaced rolls

used for discharging of free .owing and sluggish bulk materials from concrete and steel silos by the help of vibro motor

often used for weighing and recording the weight of the material being used or being carried by conveyors*

7> and 8-&&(, popular refrigerant for low-temp refrigeration system

used to prevent or minimize entry suction line liquid refrigerant into the compressor

the pressure of low pressure side also known as suction pressure


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only amount of refrigerant that is evaporated is fed to the heat transfer area and liquid level is controlled by a .oat

system of feeding, mechanically or by gas pressure, low temp saturated liquid ammonia to the evaporators at a rate

which is greater than what is actually being evaporated

5$"#:

a vapour into which water is converted when heated to its boiling point

486 gas passed against ne I>' spray

raises fermented )6> pressure from >J I>' to (-?psig C necessary to overcome pipe friction

removes water soluble substances such as ketones, alcohol and sulphur compounds

removes non-water soluble substance from )6> gas/ one for regeneration while other is in service

raises pressure of )6> gas to >(' psig so that it can be liqueed at &'7

vertical cylindrical tank which acts as high pressure )6> gas receiver

cools )6> gas with glucose as cooling medium and removes a considerable amount of moisture by condensation

- removes moisture from )6> gas to prevent freeze-up of )6> condenser

shell and tube heat exchanger used to liquefy )6> gas, reduces volume if )6> to storage

mild steel tank located below condensers to reliquefy )6> evaporating in the tank

converts liquid )6> gas for use in the brewery, vaporized by warm water

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q3 Practice