March 15, 2021
Philippines university develops pollutant-removing product for aquaculture
The Central Luzon State University (CLSU) in the Philippines has developed a soil and water container that removes pollutants in water for use in tilapia aquaculture farming, BusinessWorld reported.
Juvy J. Monserate, CLSU nanotechnology research and development facility head as well as project leader for the product development team, said the product uses zeolite-silica nanocomposites (ZNC) which is effective in cleaning pond water.
Monserate said the research was initially conducted to test ZNC effects on water quality and tilapia growth parameters under laboratory conditions.
Monserate also said the technology also allows the reuse or recycling of water after harvests, reducing pressure towards groundwater. This results in healthier fish and increased income for aquaculture farmers.
According to the project team, farmers will need to invest PHP 11,000 per hectare to use ZNC but will receive higher yields and lower production costs. Monserate said farmers can receive a potential 40.6% return of investment compared to 25.3% for non-ZNC users.
Monserate said farms using ZNC will have an estimated tilapia survival rate of 60%.
A field test will be conducted at the Isabela State University and other institution by June or July this year.
The Department of Science and Technology – Philippine Council for Agriculture, Aquatic and Natural Resources Research and Development funded this project.
Based on data from the Philippine Statistics Authority, total fish production reached 4.403 million tonnes last year with aquaculture accounting for 52.8% or 2.32 million tonnes of overall production.