活水生态共生系统构建及净化效果研究

为了从源头减少污水排放并处理生活污水,提高公众直接参与污水处理途径,研发并构建活水生态共生污水处理系统,探讨了系统在出水零排放条件下,控制回流与清水内循环体积比1:4条件下,该系统对污水氮磷营养盐的净化效果。结果表明,该共生系统动植物生长良好,实验期内3对孔雀鱼共产3代仔鱼,收获6次水蕹菜共4 304 g;系统具有较强缓冲能力,p H保持在7.35~7.75,对污水中TP、TN去除效率高,平均去除率分别达到89.2%、71.3%,出水TP、TN含量达到GB 18918-2002一级A排放标准。所构建的活水生态共生系统是一种可从源头处理并减少生活污水的排放,提高水资源利用率,具有广阔的应用前景的处理设施。

Study on the Construction of Living Water Ecological Symbiotic System and Purification Effect

In order to reduce and deal with domestic sewage from the source, small living water ecological symbiotic system was constructed to investigate the purification effect of nitrogen and phosphorus nutrients of sewage under the conditions of zero discharge of effluent and volume ratio of reflux and water was 1:4 in internal recycle. The results showed that, the symbiotic system had good growth of animals and plants, three generation larvae breed by three couples guppy and harvest six times of water spinach was 4304 g in the test period. The system had strong cushioning capacity, and pH was maintained at 7.35~7.75. The removal efficiency of total phosphorus and total nitrogen in wastewater was high, and the average removal rate was 89.2% and 71.3%, respectively. The TP and TN content in effluent met the first level A discharge standard of GB 18918 - 2002. The small living water ecological symbiotic system was a kind of treatment facility which can treat and reduce sewage emissions from the source, improve the utilization of water resources and has broad application prospects of the processing facilities.