生态沟+厌氧+人工湿地用于农业面源污染综合治理
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摘要
农村污水收集处理的技术模式主要有集中式、分散式或集中与分散相结合模式三种,选择技术模式时,需综合考虑村庄布局、人口规模、地形条件、现有治理设施等。选择处理工艺时,需综合考虑工艺技术水平、地形地貌、居住特点、动力费及电费支出、技术管理人才等。S镇18个自然湾农业面源污染综合治理工程的技术模式选取以村组为单位,通过小型管网收集并处理的方式(简称村组处理),处理工艺采用生态沟+厌氧+潜流人工湿地,出水水质达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级B标准,且具有环境融合性好、无动力费用支出、维护简单等优点。
Centralization,decentralization and combined centralization and decentralization are three main technical modes for rural sewage collection and treatment. When choosing the technical mode,the village layout,population size,topographic conditions and existing treatment facilities should be considered comprehensively. When choosing the treatment technology, the technological level,topography,living characteristics,power and electricity expenditure,technical management personnel and so on should be taken into account. The technical mode of agricultural non-point source pollution comprehensive treatment project in 18 natural villages of S town was using small-scale pipe network for collection and treatment in village group as the unit,which was referred to as village group treatment.The treatment process adopted the process of ecological ditch,anaerobic treatment and subsurface flow constructed wetland. The effluent quality had reached the level 1-B criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). It had the advantages of good environmental integration,no power costs,simple maintenance,etc.
Centralization,decentralization and combined centralization and decentralization are three main technical modes for rural sewage collection and treatment. When choosing the technical mode,the village layout,population size,topographic conditions and existing treatment facilities should be considered comprehensively. When choosing the treatment technology, the technological level,topography,living characteristics,power and electricity expenditure,technical management personnel and so on should be taken into account. The technical mode of agricultural non-point source pollution comprehensive treatment project in 18 natural villages of S town was using small-scale pipe network for collection and treatment in village group as the unit,which was referred to as village group treatment.The treatment process adopted the process of ecological ditch,anaerobic treatment and subsurface flow constructed wetland. The effluent quality had reached the level 1-B criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). It had the advantages of good environmental integration,no power costs,simple maintenance,etc.
引文
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[2]范彬,胡明,顾俊,等.不同农村污水收集处理方式的经济性比较[J].中国给水排水,2015,31(14):20-25.Fan Bin,Hu Ming,Gu Jun,et al.Economic comparison of different rural sewage treatment patterns[J].China Water&Wastewater,2015,31(14):20-25(in Chinese).
[3]余海静,杨连生,尹聪颖.某镇环境连片综合整治中污水处理工程设计[J].中国给水排水,2012,28(20):87-89.Yu Haijing,Yang Liansheng,Yin Congying.Design of sewage treatment project in coiltiguous comprehensive improvement of a town environment[J].China Water&Wastewater,2012,28(20):87-89(in Chinese).
[4]张佳琳,林方敏,罗隽,等.厌氧-人工湿地-氧化塘用于华南农村污水连片整治[J].中国给水排水,2016,32(12):106-109.Zhang Jialin,Lin Fangmin,Luo Jun,et al.Application of unpowered system of anaerobic treatment,constructed wetland and oxidation pond to integrated treatment of rural sewage in south China region[J].China Water&Wastewater,2016,32(12):106-109(in Chinese).