混凝法去除校园污水中常见污染物的试验研究
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摘要
运用常见混凝技术及磁种混凝法处理高校生活污水,通过分析原水水质污染指标,检测磁种Fe3O4、无机混凝剂PAC、PFS、PSAF及助凝剂PAM在不同混合方式和投加量的条件下,对污水中COD、TP及浊度去除效果的影响,并确定各种复配方式的最佳投加量。结果表明:在最佳混凝条件下,PAC与PAM复配,能最大限度地去除污水中COD和浊度,且在投加量为(120+2.4)mg/L时,COD和浊度的去除率达到最大,分别为66.7%和98.3%。而PFS与PAM混合,对污水中TP的去除效果较好,在投加量为(140+2.8)mg/L时,去除率可达99.6%。出水水质经检测,达到《城镇污水处理厂污染物排放标准》二级排放标准。
The common coagulation technology and magnetic species coagulation methods are used to deal with the university sewage. Analysing contaminative datas of original water, gauging Fe_3 O_4、Inorganic coagulant PAC、PFS、PSAF and the coagulant PAM in different mixing methods and dosage, testing the effect of removing COD、TP and turbidity in sewage. And make sure the best dosage in different mixing methods and dosage. Experiments show, under the best coagulation condition, the mixture of PAC and PAM can remove COD and turbidity in wastewater to the maximum extent, when the dosage is(120+2.4)mg/L, the removal rate of COD and turbidity reached the maximization. The removal rate of it are 66.7% 和 98.3%. Moreover, PFS mixed with PAM can effectively remove TP in sewage, and the dosage reach at(140+2.8)mg/L, removal rate can reach 99.6%. The effluent quality has been tested to reach the level 2 emission standard of urban sewage treatment plant.
The common coagulation technology and magnetic species coagulation methods are used to deal with the university sewage. Analysing contaminative datas of original water, gauging Fe_3 O_4、Inorganic coagulant PAC、PFS、PSAF and the coagulant PAM in different mixing methods and dosage, testing the effect of removing COD、TP and turbidity in sewage. And make sure the best dosage in different mixing methods and dosage. Experiments show, under the best coagulation condition, the mixture of PAC and PAM can remove COD and turbidity in wastewater to the maximum extent, when the dosage is(120+2.4)mg/L, the removal rate of COD and turbidity reached the maximization. The removal rate of it are 66.7% 和 98.3%. Moreover, PFS mixed with PAM can effectively remove TP in sewage, and the dosage reach at(140+2.8)mg/L, removal rate can reach 99.6%. The effluent quality has been tested to reach the level 2 emission standard of urban sewage treatment plant.
引文
[1]吕凯波,项文霞,邓猛,等.磁种混凝法去除校园污水中COD的试验研究[J].北方环境,2011(6):56-58.
[2]甘黎明,夏德强.新型复合絮凝剂去除生活污水中COD的效果研究[J].环境科学与管理,2011(01):79-81.
[3]刘玉哲,胡锋平,杨竞,等.强化混凝技术处理生活污水的试验研究[J].环境科学与技术,2011(6):132-136.
[4]张瑛,阮晓红.水处理混凝剂及其发展方向[J].污染防治技术,2003(4):45-49.
[5]姜应和,李玲玲.混凝法强化城市污水厂一级处理的试验研究[J].中国给水排水,2000(16):12-15.
[6]纪祥廷.温度及搅拌等因素对混凝法处理污水效果的影响[J].节能环保,2017(10):14.
[7]李兴存,张忠智,王洪君,等.微生物絮凝剂的研究进展[J].石油大学学报(自然科学版),2002(4):123-125.
[2]甘黎明,夏德强.新型复合絮凝剂去除生活污水中COD的效果研究[J].环境科学与管理,2011(01):79-81.
[3]刘玉哲,胡锋平,杨竞,等.强化混凝技术处理生活污水的试验研究[J].环境科学与技术,2011(6):132-136.
[4]张瑛,阮晓红.水处理混凝剂及其发展方向[J].污染防治技术,2003(4):45-49.
[5]姜应和,李玲玲.混凝法强化城市污水厂一级处理的试验研究[J].中国给水排水,2000(16):12-15.
[6]纪祥廷.温度及搅拌等因素对混凝法处理污水效果的影响[J].节能环保,2017(10):14.
[7]李兴存,张忠智,王洪君,等.微生物絮凝剂的研究进展[J].石油大学学报(自然科学版),2002(4):123-125.