Читать книгу Clinical Guide to Fish Medicine - Группа авторов - Страница 112

The goal of mechanical filtration is to physically remove particulate waste (e.g. animal waste, uneaten food, detritus). Particulate size, in this context, extends from easily visualized material to soluble and insoluble organics. Mechanical filtration helps to physically remove large, medium, and fine particulates, nitrogenous wastes, phosphates, and some soluble and insoluble organics. Physicochemical filtration uses both physical and chemical processes to remove dissolved contaminants such as in foam fractionation, granular activated carbon, and flocculation treatments.