厌氧–土壤净化床工艺处理农村生活污水的工程应用及运行成本分析研究

The Engineering Application and Operation Cost Analysis of the Anaerobic Tank-Soil Bed System on Treating the Rural Domestic Sewage in Chaohu Lake Basin Area

摘要: 以肥东县牌坊乡中心社区应用土壤净化床技术处理生活污水为案例，研究其对农村生活污水处理应用效果及成本分析。结果表明：1) 土壤净化床处理厌氧后污水，能有效去除污水中COD、TN、NH₄⁺ -N、TP。第三方监测结果表明，厌氧–土壤净化床工艺出水能达到《城镇污水处理厂污染物排放标准 GB18918-2002》一级B标准；2) 厌氧–土壤净化床运行成本为0.03元∙t⁻¹；3) 处理规模100 m³∙d⁻¹的土壤净化床占地面积600 m²，土壤净化床农作年收益约0.32万元，农作收益能保障污水处理系统的运行费用。

Abstract: The paper was proposed to study the application effect and cost analysis of rural domestic sewage treated by soil bed system, which is applied at the central community of Paifang Township, Feidong County, Anhui Province. The results showed that: 1) The anaerobic tank-soil bed system can effectively remove COD, TN, NH₄⁺ -N and TP in sewage. The results of the third party inspection institution indicated that the effluent can meet the level B standard of Standard for Pollutant Dis-charge in Urban Wastewater Treatment Plant GB18918-2002; 2) The operation cost of anaerobic tank-soil bed system is RBM 0.03 yuan∙T⁻¹; 3) The 100 m³∙d⁻¹ sewage treatment scale of soil bed system covers 600 m² land, and the income of soil bed system in farming is about RBM3200 yuan∙a⁻¹, which can support the operation cost of sewage treatment system.