Nitration bed, for waste water contg. nitrogenous organic cpds. - comprises assembly in circular tank comprising blocks on supports for bacteria supplied with oxygen

摘要

Nitration bed for converting to nitrates the nitrogenous organic cpds. in waste water forms a fixed square or rectangular assembly centrally mounted in a circular tank for liq. sewage. The bed may be formed of blocks, superimposed or laterally adjacent, of perforated supports for bacteria supplied with oxygen by air bubbling upwards through the bed. This aerated the straight bed sides and the circular tank wall maintaining constant circulation. The bed may be subdivided by vertical partition. ADVANTAGE - With uniform sewage flow maintained in entire bed, nitrification is efficient and clogging risk low.