铁炭微电解处理丙烯腈模拟废水  

Treatment of Acrylonitrile Simulation Wastewater with Iron-carbon Micro-electrolysis

作　　者：庞翠翠[1] 赖波[2,3] 张胜[1] 周岳溪[3] 王志刚 廉雨[1] 

机构地区：[1]河北工程大学城市建设学院,河北邯郸056038 [2]四川大学建筑与环境学院,四川成都610065 [3]中国环境科学研究院水污染控制技术研究中心,北京100012 [4]中石油吉林石化分公司合成树脂厂,吉林吉林132021

出　　处：《环境工程技术学报》2012年第1期13-17,共5页Journal of Environmental Engineering Technology

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07207-004)

摘　　要：为了破坏丙烯腈的氰基键(C≡N),降低丙烯腈废水的毒性,采用铁炭微电解系统处理浓度为100.0mg/L的丙烯腈模拟废水。为了避免活性炭吸附的影响,建立铁炭微电解和活性炭对照试验两套系统。结果表明,铁炭微电解系统能够有效地分解转化丙烯腈,破坏丙烯腈分子结构中的氰基键(C≡N),降低其毒性。铁炭微电解处理丙烯腈废水时,主要依赖铁炭之间形成的自由氢基[H]和新生成的Fe2+的化学氧化还原作用分解转化丙烯腈,而活性炭仅具有一定的吸附能力。铁炭微电解系统能够使丙烯腈废水中氮的形式发生转变,而不具备脱氮能力。In order to damage the molecular structure of C≡N and reduce the toxicity of acrylonitrile wastewater, iron-carbon micro-electrolysis was used to treat the simulation wastewater with the concentration of 100 mg/L. Iron- carbon micro-electrolysis system and activated carbon control experiment were established to avoid the effect of activated carbon adsorption. The results showed that iron-carbon micro-electrolysis system could effectively decompose aerylonitrile, damage the molecular structure of C≡N and decrease toxicity. When acrylonitrile wastewater was treated by micro-electrolysis, it mainly depended on chemical oxidation reduction effect of the free base [ H ] and Fe^2＋ that formed between iron and carbon, while the activated carbon only had a certain adsorption capacity. The iron-carbon micro-electrolysis system could change nitrogen form in acrylonitrile wastewater, rather than have the denitrification capacity.

关 键 词：铁炭微电解 丙烯腈 活性炭吸附 氰基键 

分 类 号：X703.1[环境科学与工程—环境工程]