[1]周荣忠,谢锦文,李攀荣,等.有机硅生产行业重金属废水膜分离技术研究[J].中国给水排水,2022,38(13):90-96.
ZHOURong-zhong,XIEJin-wen,LIPan-rong,et al.Membrane Technology for Heavy Metal Separation from Organic Silicon Production Industry Wastewater[J].China Water & Wastewater,2022,38(13):90-96.
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ZHOURong-zhong,XIEJin-wen,LIPan-rong,et al.Membrane Technology for Heavy Metal Separation from Organic Silicon Production Industry Wastewater[J].China Water & Wastewater,2022,38(13):90-96.
有机硅生产行业重金属废水膜分离技术研究
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第38卷
期数:
2022年第13期
页码:
90-96
栏目:
出版日期:
2022-07-01
- Title:
- Membrane Technology for Heavy Metal Separation from Organic Silicon Production Industry Wastewater
- Keywords:
- membrane separation; heavy metal wastewater; organic silicon; Cu2+; Zn2+; recycling
- 摘要:
- 选用0.4 μm的PVDF中空纤维膜,在抽停比为7 min∶2 min、曝气量为70 m3/(m2·h)、初始膜通量为0.5 m3/(m2·d)、悬浮液浓度在20 000 mg/L以内的条件下,对含铜锌重金属有机硅生产废水进行处理,出水Cu2+、Zn2+浓度分别为0.20、0.36 mg/L,去除率分别为99.80%、99.07%,且凝聚体污泥干基中Cu含量均值达到17.64%,超过《铜精矿》(YS/T 318—2007)四级品标准,可直接资源化回收,产生经济效益,冲抵后废水处理成本为4.60 元/m3。
- Abstract:
- A PVDF hollow fiber membrane with pore size of 0.4 μm was selected to treat organic silicon production wastewater containing copper and zinc under the following conditions: pumping work/stop time of 7 min to 2 min, aeration rate of 70 m3/(m2·h), initial membrane flux of 0.5 m3/(m2·d) and suspended solids concentration less than 20 000 mg/L. The concentrations of Cu2+ and Zn2+ in effluent were 0.20 mg/L and 0.36 mg/L, and the removal efficiencies were 99.80% and 99.07%, respectively. The average copper content in the dry base of condensed sludge reached 17.64%, which exceeded the fourth-grade product standard of Copper Concentrate (YS/T 318-2007) and could be directly recycled to generate economic benefits. The cost of wastewater treatment after cost compensation was 4.60 yuan/m3.
更新日期/Last Update:
2022-07-01