工业水处理 ›› 2023, Vol. 43 ›› Issue (8): 179-184. doi: 10.19965/j.cnki.iwt.2023-0042

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含锑废水深度处理技术研究与中试示范

陈韬1(), 付广义1(), 钟宇1, 李琼花1,2, 田石强1, 成应向1   

  1. 1. 湖南省环境保护科学研究院,水污染控制技术湖南省重点实验室,湖南 长沙 410004
    2. 长沙理工大学化学化工学院,湖南省电力运输材料保护重点实验室 & 湖南省细胞化学重点实验室,湖南 长沙 410004
  • 收稿日期:2023-06-03 出版日期:2023-08-20 发布日期:2023-08-28
  • 作者简介:

    陈韬(1990— ),硕士,工程师。电话:19907314345,E-mail:

    付广义,博士,副研究员。电话:18773164603,E-mail:

  • 基金资助:
    湖南省重点研发计划项目(2019SK2281)

Research and pilot-scale demonstration of advanced treatment technology for antimony-containing wastewater

Tao CHEN1(), Guangyi FU1(), Yu ZHONG1, Qionghua LI1,2, Shiqiang TIAN1, Yingxiang CHENG1   

  1. 1. Hunan Reasearch Academy of Environmental Sciences,Hunan Provincial Key Laboratory of Water Pollution Control Technology,Changsha 410004,China
    2. Changsha University of Science and Technology,School of Chemistry and Chemical Engineering,Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation & Hunan Provincial Key Laboratory of Cytochemistry,Changsha 410004,China
  • Received:2023-06-03 Online:2023-08-20 Published:2023-08-28

摘要:

以某锑制品厂混凝沉淀处理后的低浓度含锑废水为吸附对象,在小试中通过单因素实验得到最佳吸附条件,再通过动态化吸附和再生实验确定深度处理磁分离技术的最佳工艺参数。该技术使出水的锑质量浓度能稳定达到排放标准(5 μg/L)。小试结果表明,在铁基Fenton改性磁性吸附剂(AFS350)投加2.0 g/L,吸附1.0 h,搅拌速度200 r/min的条件下,出水锑的质量浓度降为0.004 mg/L。中试结果表明,AFS350投加3 g/L,搅拌速度300 r/min,吸附2.0 h后,锑的去除率高达98.91%。此工艺技术实现了磁性吸附材料全自动分离回收及再生利用,同时具有较高的经济效益和可持续发展的潜力,为工业含锑废水的深度处理提供了一种可行方案。

关键词: 水处理技术, 磁性吸附材料, 含锑废水

Abstract:

The low concentration antimony-containing wastewater from an antimony product plant after coagulation and precipitation treatment was used as the adsorption object,and the optimal adsorption conditions were obtained by single-factor experiments. Then,the optimal process parameters of the magnetic separation technology for deep treatment were determined by dynamicized adsorption and regeneration experiments. The technology enabled the effluent antimony mass concentration to reach the discharge standard(5 μg/L) stably. The results of the experiments showed that the mass concentration of antimony was reduced to 0.004 mg/L under the conditions of iron-based Fenton-modified magnetic adsorbent(AFS350) dosing of 2.0 g/L,adsorption for 1.0 h and stirring speed of 200 r/min. The results of the pilot test showed that the removal rate of antimony after AFS350 dosing of 3 g/L,stirring speed of 300 r/min and adsorption for 2.0 h was up to 98.91%. This process technology achieves fully automatic separation and recovery and recycling of magnetic adsorption materials,and at the same time had high economic efficiency and sustainable development potential,providing a feasible solution for the deep treatment of industrial antimony-containing wastewater.

Key words: water treatment technology, magnetic adsorption material, antimony-containing wastewater

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