Advances in aeration and wastewater treatment in shrimp farming: emerging trends, current challenges, and future perspectives

The shrimp aquaculture industry has recently witnessed dramatic growth. Shrimp farming has gradually shifted from extensive to intensive or super-intensive models. However, the intensification of shrimp aquaculture is associated with energy security and environmental issues. The aeration system requires high energy demand to run mechanical aerators to maintain dissolved oxygen concentration in cultured ponds. Besides, intensive shrimp farms usually produce wastewater with high pollutant concentrations that may jeopardize the ecosystem when discharged. In an attempt to minimize the impacts of these problems, rigorous technological approaches have been carried out. This review provides recent advanced technologies employed to improve aeration and wastewater management. Moreover, this paper also introduces a sustainable energy model being studied and developed for aeration and wastewater treatment at shrimp farms.