Water lettuce points to a new biological solution for piggery wastewater

A scientific study by An Giang University, Vietnam National University, Ho Chi Minh City, and the An Giang Center for Rural Clean Water and Environmental Sanitation has demonstrated the potential of water lettuce (Pistia stratiotes) for treating piggery wastewater under natural conditions. The findings show that treatment performance varies with the initial biomass density and the pollutant being targeted. The approach offers a low-cost, environmentally friendly biological treatment option with potential for application by pig farms and household producers in Viet Nam.