炭素烟气洗涤废水高效脱色技术试验研究
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摘要
研究了高效处理炭素烟气洗涤废水技术,采用微电解、高级化学氧化、混凝沉淀组合工艺对炭素烟气洗涤废水进行综合处理试验。试验结果表明:采用由内电解单元、芬顿单元、混凝沉淀单元组成的集成脱色系统效果显著,原水色度1600倍,最终出水色度低于50倍,综合脱色率90%以上;出水氟离子质量浓度低于30mg·L-1,除氟率超过90%;出水COD和DOC质量浓度分别在200mg·L-1和100mg·L-1以下,去除率分别为94%和87%;出水钒离子浓度4mg/L,去除率达90%;总体处理费用可控制在10元/t以下。
The efficient processing technology of flue gas washing wastewater for carbon production is studied in this paper,by adopting micro electrolysis technology,advanced chemical oxidation,and coagulation sedimentation process. The results show that the effect is remarkable by using integrated decoloring system with internal electrolysis unit,Fenton unit,and coagulation sedimentation unit,raw water chroma is 1600 times,the final processed wastewater chroma is less than 50 times,the comprehensive decoloring rate is more than 90%,water fluoride ion concentration is lower than 30 mg / L,fluoride removal rate is more than 90%,the effluent COD and DOC are respectively less than 200 mg / L and 100 mg / L,the removal rates are 94% and 87%respectively,the vanadium ion concentration is 4 mg / L,the removal rate reaches 90%,and the overall processing costs can be controlled under10 RMB /t.
The efficient processing technology of flue gas washing wastewater for carbon production is studied in this paper,by adopting micro electrolysis technology,advanced chemical oxidation,and coagulation sedimentation process. The results show that the effect is remarkable by using integrated decoloring system with internal electrolysis unit,Fenton unit,and coagulation sedimentation unit,raw water chroma is 1600 times,the final processed wastewater chroma is less than 50 times,the comprehensive decoloring rate is more than 90%,water fluoride ion concentration is lower than 30 mg / L,fluoride removal rate is more than 90%,the effluent COD and DOC are respectively less than 200 mg / L and 100 mg / L,the removal rates are 94% and 87%respectively,the vanadium ion concentration is 4 mg / L,the removal rate reaches 90%,and the overall processing costs can be controlled under10 RMB /t.
引文
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[2]胥杰.焙烧炉烟气污染防治对策的探讨[J].湖南有色金属,2007,23(3):42-46.
[3]王江峰,刘光大.炭素厂沥青烟尘净化处理[J].工程设计与研究,2007(6):28-29.
[4]窦波.小型炭素焙烧炉沥青烟气净化技术初探[J].工业安全与环保,2003,29(11):6-8.
[5]宁前进.炭素厂沥青烟气的危害及治理[J].轻金属,2011(11):40-45.
[6]徐永炽,白春兰,刘智勇,等.炭素厂阳极焙烧烟气湿法净化污水处理探索[J].贵州环保科技,1996(3):31-37.
[7]周兰君烧结厂含氟烟气洗涤水处理[J].环境工程,1995,13(2):18-21.
[8]利锋,方战强,曾志勇,等.印染废水高效脱色絮凝剂的合成及其脱色性能研究[J].工业水处理,2005,25(8):38-41.