啤酒废水的生物净化与利用研究

以啤酒废水为主的城市污水，通过多级模拟生物净化系统，污水中的有机污染物得到明显转换和去除． Ｂ Ｏ Ｄ５ 、 Ｃ Ｏ Ｄｃｒ、 Ｎ、 Ｐ等污染指标去除率在７９ ．４５ ％ ～９９ ．７０ ％ 之间．随水质的改变，藻类的种类、数量、生物量、叶绿素含量及多样性指数不断上升，清洁种类逐渐增多．在净化后的污水中，鱼虾优质饵料生物—大型蚤数量ｎ达２３４ Ｌ－ １ ，即平均有２ ．６７ ｍｇ Ｌ－ １ 的 Ｃ、０ ．６２ ｍｇ Ｌ－ １ 的 Ｎ、０ ．０９ ｍｇ Ｌ－ １ 的 Ｐ转移到蚤体中．相关分析表明，大型蚤食量与加入藻的量呈正相关关系，与剩余藻的量呈负相关关系．

BIO TREATMENT AND UTILIZATION OF BREWERY WASTEWATER

This paper deals with the treatment and utilization of brewery wastewater through a multicell simulation purification system. After the treatment in different functional ponds of the purification system, the water quality of the ponds was improved significantly, and the removal rates of BOD 5, COD cr , N and P ranged from 79.45 to 99.70 %. The number of algal species, individual abundance, biomass, chlorophyll content and biodiversity index as well as those species indicative of clean water increased gradually along with water quality's purification. Quantity of Daphnia in the last pond was 234 L -1 , that is, 2.67 mg L -1 of C, 0.62 mg L -1 of N and 0.09 mg L -1 of P were anevagely transformed into Daphnia . Data for statistical analysis showed that feeding quantities of Daphnia were positively correlated with the adding algal quantities and were negatively correlated with the remaining algal quantities.