[1]卜龙利,赵佩,高宁,等.混凝-沉淀-砂滤工艺对污水中典型医药类物质的去除特性研究[J].西安建筑科技大学学报:自然科学版,2015,47(01):120-124+135.[doi:10.15986/j.1006-7930.2015.01.023]
 BO Longli,ZHAO Pei,GAO Ning,et al.Study on removal characteristics of typical pharmaceutical substances in wastewater treated by coagulation, precipitation and sand filtration[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(01):120-124+135.[doi:10.15986/j.1006-7930.2015.01.023]
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混凝-沉淀-砂滤工艺对污水中典型医药类物质的去除特性研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
47
期数:
2015年01期
页码:
120-124+135
栏目:
出版日期:
2015-02-28

文章信息/Info

Title:
Study on removal characteristics of typical pharmaceutical substances in wastewater treated by coagulation, precipitation and sand filtration
文章编号:
1006-7930(2015)01-0120-05
作者:
卜龙利;赵佩;高宁;孟海龙;冯奇奇;谭娜;
西安建筑科技大学环境与市政工程学院;
Author(s):
BO Longli ZHAO Pei GAO Ning MENG Hailong FENG Qiqi TAN Na
School of Environmental and Municipal Engineering, Xi’an Univ. of Arch. & Tech. , Xi’an 710055, Shaanxi, China
关键词:
混凝剂絮凝剂投加量医药类物质去除特性
Keywords:
coagulant flocculant dosage pharmaceutical substances removal characteristics
分类号:
X703.1
DOI:
10.15986/j.1006-7930.2015.01.023
文献标志码:
A
摘要:
通过实验室模拟的混凝-沉淀-砂滤装置,研究混凝剂聚合氯化铝(PAC)、聚合硫酸铁(PFS)和絮凝剂聚丙烯酰胺(PAM)投加量和投加方式对污水中医药类物质降固醇酸(CA)、卡马西平(CBZ)、萘普生(NAP)和双氯芬酸(DCF)的去除特性.研究发现,针对医药类物质总进水浓度2 mg/L的污水厂二级出水,单独投加PAC 60 mg/L下混凝-沉淀-砂滤工艺对医药类目标物的去除效果最佳,总去除率为30.31%,去除顺序为CBZ>DCF>CA>NAP;PFS单独投加量100 mg/L下的去除效果最好,目标物总去除率为28.96%,去除率大小是DCF>CA>CBZ>NAP.PAC或PFS主要通过电性中和...
Abstract:
Removal characteristics of pharmaceutical compounds in wastewater, clofibric acid (CA), carbamazepine (CBZ), naproxen (NAP) and diclofenac (DCF) were investigated by the change of dosage and dosing mode of poly aluminium chloride (PAC), polymeric ferric sulfate (PFS) and polyacrylamide (PAM) through an experimental setup of coagulation, precipitation and sand filtration. The research indicated that removal efficiencies of four target pharmaceuticals reached 30.31% in total initial concentration of 2 mg/L and PAC dosage of 60 mg/L, and the sequence of removal rate was CBZ>DCF>CA>NAP. The best removal rate was up to 28.96% for PFS with the dosage of 100 mg/L, and the order of removal rate was DCF>CA>CBZ>NAP.Negative charges of target compounds can be neutralized by Al3+ or Fe3+ from PAC or PFS so that pharmaceutical substances are easily adsorbed onto the destabilized colloid and suspended microparticles, which could be removed in the process of precipitation and sand filtration. Removal efficiencies of pharmaceutical substances were improved obviously in the presence of PAC and PAM with dosage of 0.5 mg/L, which was due to adsorption and bridge effect of PAM. The removal of NAP was improved at dosing PAC and PFS simultaneously. However, the interaction effect between PAC and PFS needs to be optimized by the adjustment of their dosage and proportion. Coagulation and precipitation played important roles in the removal of pharmaceutical substances in wastewater, and the sand filtration was of little or sometimes even no effect in experiment.

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备注/Memo

备注/Memo:
收稿日期:2014-10-09 修改稿日期:2015-02-01
基金项目:陕西省教育厅专项科研项目(12JK0640)
作者简介:卜龙利(1973-),男,博士,副教授,主要研究方向为水污染控制化学.E-mail: bolongli@xauat.edu.cn
更新日期/Last Update: 1900-01-01