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Controlled Environment Aquaponics

Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

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Page 1: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Controlled Environment Aquaponics

Page 2: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

What is aquaponics?

Aquaponics is an integrated system that combines hydroponics and aquaculture.

In an aquaponics system, the waste water from aquaculture subsystem is used to fertilize plants, and the plants reduce nutrient levels in the water.

Page 3: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Benefits of AquaponicsReduce chemical fertilizer use for

hydroponicsReduce water disposal for aquaculture

operationControlled Environmental Agriculture

benefits: year-round, local food production

Page 4: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Challenges of AquaponicspH compromise: plants grow best at pH of

6.0-6.5 while fish grow best at pH of 7.5-8.0 Temperature compromise: optimal

temperature for plants doesn’t match necessarily the optimal temperature for fish

Nutrient level in the fish water is low compared to plant nutrient needs

Elements in the fish waste are not in proper molecular ratios required by plants

Page 5: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Objectives of Morrisville Aquaponics Project

Demonstrate feasibility of an aquaponics system under controlled environment (greenhouse) in New York State

Quantify inputs and outputs of the system

Market products

Page 6: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Overview of the Morrisville State College Aquaculture Facilities

Boiler building Instrument shed

GreenhouseAquaculture Center (image from Bingmaps.com)

Page 7: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

GreenhouseThe dimensions of the greenhouse are 30 feet by 60

feetThe roof is made of double PE filmThe side walls are constructed of PVC panelThe structure is heated by hot-water (hydroponic)

heating and cooled by a fan-and-pad systemThe horizontal air flow fans are used for air

recirculationThere is an energy curtain for shading and energy

conservation, insect screen and LED and high pressure sodium supplemental lighting

Page 8: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Nutrient Film Technique (NFT) Hydroponic System

Page 9: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Floating Raft Subsystem

Page 10: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Aquaculture Subsystem

There are two 600 gallon fish tanks and one 800 gallon tank.

Each tank is equipped with a solid removal device (bead filters),UV sterilizers, a biofilter, blower, settling tanks and pumps

Page 11: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Aquaculture Subsystem

Page 12: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Lettuce growth

It takes 40 days to grow 5 ounces of lettuce. At full capacity, the Morrisville State College greenhouse could produce over 30,000 heads of lettuce annually.

In 2012, the College controlled environment agriculture facility diversified its crops and grew over 6000 heads of lettuce, over 300 pounds of basil, bok choy, arugula, and 90 pounds of tomatoes and cucumbers.

Page 13: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Tilapia growth

It takes about 8 months to grow a one pound tilapia. In 2012, the Morrisville State College controlled environment agriculture facility produced nearly 600 pounds of tilapia.

Page 14: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Electricity and Fuel Usage

In 2012, the Morrisville State College controlled environment agriculture greenhouse used about 147 kWh per day, for a total of 53,778 kWh annual energy.

The two 300,000 BTU/hr boilers used 4,360 gallons of fuel oil to heat the greenhouse, fish tanks, monitoring shed, biodiesel production lab, and the boiler building. One of the two boilers now runs on biodiesel produced on campus!

Page 15: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Biodiesel from Dining Hall Fryer Oil

Campus dining facilities use 2500 gallons of oil per year

The boiler is operated by students and currently processes 50 gallons per batch with 1 to 2 batches per week

The campus uses biodiesel for heating the greenhouse during the winter and for farm tractor fuel in the summer

Page 16: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Water Consumption

11/18/2010 12/18/2010 1/17/2011 2/16/2011 3/18/2011 4/17/2011 5/17/2011 6/16/2011 7/16/20110

10000

20000

30000

40000

50000

60000

Date

Wate

rmete

r re

adin

g (

gal)

11/18/2010 12/18/2010 1/17/2011 2/16/2011 3/18/2011 4/17/2011 5/17/2011 6/16/2011 7/16/20110

200

400

600

800

1000

1200

Date

Wate

rmete

r re

adin

g (

gal)

In 2012, the controlled environment agriculture greenhouse used an average of 142 gallons of water per day, resulting in 51,975 gallons for the year

Page 17: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics

Feasibility of AquaponicsWhile aquaponics is technically feasible, it remains economically challenging under the climate of New York State.

Renewable energy options can improve the economics for aquaponics by using wastes as fuel for combined heat and power (CHP).

Madison County Landfill CHP

Morrisville State CollegeDigester CHP

Morrisville State College Biomass Gasification CHP

Page 18: Controlled Environment Aquaponics. What is aquaponics? Aquaponics is an integrated system that combines hydroponics and aquaculture. In an aquaponics