宁波地区农村生活污水产污特征分析研究

发布时间：2018-07-27 17:09

【摘要】：以世界银行贷款宁波新农村发展项目农村生活污水治理子项目为基础,开展宁波地区农村生活用水量、生活污水产生时间和污染物浓度调查与分析。结果表明:按常住人口计算的人均用水量明显大于按户籍人口计算的人均用水量,特别是山区地区由于外出人口较多,按两种口径计算差异较大。农村生活污水为非连续排放,生活用水量在6:00—9:00、11:00—13:00和17:00—21:00出现3个高峰,22:00至次日6:00期间生活用水量基本无排放。平原村庄污水处理设施进水污染物平均浓度高于山区村庄,其中平原村庄农村生活污水处理设施进水的COD、BOD5、SS、TN平均质量浓度分别为172.4、57.0、55.8、36.4mg/L,山区村庄农村生活污水处理设施进水的COD、BOD5、SS、TN平均质量浓度分别为141.6、52.8、43.8、24.9mg/L。
[Abstract]:Based on the new rural development project of Ningbo by the World Bank, the investigation and analysis of the rural domestic water consumption, the time of producing domestic sewage and the concentration of pollutants were carried out in the rural areas of Ningbo. The results show that the per capita water consumption calculated by the permanent resident population is obviously larger than that by the household registration population, especially in the mountainous areas because of the large number of people out of the home, there is a great difference in the calculation between the two calibers. The rural domestic sewage is discontinuous discharge, the domestic water consumption is 6: 00-9: 0011: 00-13: 00 and 17: 00-21: 00 has three peaks: 22: 00 to 6:00 the next day there is basically no discharge. The average concentration of pollutants in sewage treatment facilities in plain villages was higher than that in mountain villages. The average mass concentrations of COD BOD5 / SSTN in rural sewage treatment facilities in plain villages were 172.4 mg / L, 57.0g / L and 36.4 mg / L, respectively, and the average mass concentrations of COD BOD5 / SSN were 141.62.82.83.82.83.84.9mg / L, respectively.
【作者单位】：宁波市环境保护科学研究设计院;宁波市农业科学研究院生态环境研究所;
【基金】：宁波市科技局社会发展攻关项目(No.2014C50001)
【分类号】：X799.3

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