METHOD OF TREATING WASTE WATERS UTILIZING NATURAL ENVIRONMENTAL ELEMENTS Russian patent published in 2003 - IPC

FIELD: waste water treatment. SUBSTANCE: invention aims to clean waste waters originating from industrial enterprises and filtration waters from dumps to remove heavy metals, oil products, and other mineral and organic substances. Prior to come into contact with higher aquatic plants, waste water is subjected to forced aeration involving chute with spongy texture and to additional treatment of waste waters by passing them through sorbent in the form of naturally occurring bleaching earth used also as base for bottom ground enhancing rootage of higher aquatic plants. Method is realized in bioengineering construction with bottom ground consisting of clay (2/3) and bleaching earth (1/3). EFFECT: provided inexpensive and effective method for treatment of complex multicomponent waste waters due to created conditions for optimization of functioning of microorganisms and higher aquatic plants. 2 dwg, 2 tbl