This study from Vietnam looks at the pollution problem caused by fish farming in the Mekong Delta (MD) and assesses a … number of treatment options that could bring this pollution down to acceptable levels. The study is the work of a research … to reduce the amount of pollution they discharge and help them to meet the necessary clean up costs. …

pollution down to acceptable levels. The study finds that a trickling-filter systems would be the most cost-effective response … pollution they discharge and help them to meet the necessary clean up costs. …