摘要
绿色生态滤池是一种利用由微生物和蚯蚓为代表的微型动物共同组成的人工生态系统对城镇污水中的污染物质进行降解处理的新型环保技术。该生态滤池由布水区、蚯蚓滤床和排水区三部分组成 ,集物理过滤、吸附、好氧和厌氧生物处理以及污泥堆肥处理等诸多处理功能于一身。本研究中生态滤池处理城镇污水的CODcr去除率达 83%～ 88% ,BOD5去除率达91%～ 96 % ,SS去除率达 85 %～ 92 % ,氨氮去除率达 5 5 %～ 6 5 %。具有流程简单、管理方便、耐冲击负荷大、造价和运行费用低。
The green bio-filter with combination of microbe and earthworm as representative of microbe to form man-made ecosystem is a new environmental technique to degrade pollutants for municipal and town sewage treatment. The bio-filter is composed of water distribution area, earthworm filter and dis-charge area combining with physical filtration, adsorption, aerobic and anaerobic liological treatment and sludge compost treatment etc. with multiple functions. In this study, the bio-filter treatment can get 83%～88% removal of chemical oxygen demand COD cr , 91%～96% removal of biological oxygen demand BOD 5, 85%～92% removal of suspended solids SS and 55%～65% removal of ammonia nitrogen. It has the characteristics of simple process,easy management, big capability for impact resistance,low investment and operation costs with no residual sludge.
