Field Evaluation of a Passive Aeration System for Aquaculture

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Last modified by Vanesa Zanzi Ferrando on 2019-12-11. This is a wiki so please feel free to update information by clicking on "Edit with form".

Project title

Field Evaluation of a Passive Aeration System for Aquaculture

Project country/region

☐ East Asia & Pacific
☐ Europe & Central Asia
☐ Latin America & The Carribean
☐ Middle East & North Africa
☐ North America
South Asia - Bangladesh
☐ Sub-Saharan Africa

Project organisation

University of Toronto

Project description

Aquaculture is a large industry in many low income countries (LICs); fish farms account for about 5 percent of the GDP of Bangladesh. Improving the quality of aquaculture pond water has the potential to increase fish yields, raise incomes, and improve food security. In large aquaculture facilities, aeration has been shown to improve water quality and increase yields. However, aeration equipment is costly and requires electrical power inputs which can limit its use in LICs.


The University of Toronto’s proposed approach is a new aeration method that does not require electricity, has no moving parts, has low maintenance requirements, and is inexpensive to fabricate and deploy in low income countries.


The passive aeration system will increase pond dissolved oxygen levels to improve water quality, allow for increased density of fish stock, higher fish yields, as well as larger fish that have a higher market value and demand. At higher levels of dissolved oxygen, fish feed is also used more efficiently, which reduces operation costs. The solution is an alternative to power-hungry aeration systems that consume significant amounts of energy and capital. For farmers not using aeration, the technology will provide all of the benefits described above. For farmers using aeration, replacing or supplementing existing devices can greatly decrease energy consumption for aquaculture.


In 2015, University of Toronto (Canada) received a Powering Agriculture award ( ) for the Initial Piloting (Stage 3) of solar thermal solutions for aeration in the production of aquaculture in Bangladesh

Project related to following sources of energy


☐ Biomass

☐ Biofuel

☐ Biogas

☐ Wind

☐ Geo-Thermal

☐ Hydro

☐ Energy Efficiency

☐ Other: /

Project primarily related to the following Commodity Groups

☐ Cereals

☐ Fruits and vegetables

☐ Nuts and berries

☐ Forage

☐ Dairy products

☐ Meat products

☐ Oil Seeds

☐ Roots and Tubers

☐ Eggs

☐ Pulses

☐ Fiber Crops

☐ Forestry

☐ Sugars

☐ Stimulants

☐ Spices

Other: Fish

Project primarily related to the following Agricultural Value Chain Steps

☐ Mechanization

Efficiency of Operation


☐ Transportation

Controlled Atmosphere

Controlled Temperature

☐ Mechanical Sorting

☐ Preservation

☐ Other: /

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