络合萃取法预处理CLT酸生产废水研究
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摘要
以三辛胺为络合剂,磺化煤油为稀释剂,采用络合萃取法对CLT酸生产废水进行了预处理研究,考察了pH、温度、搅拌转速、搅拌时间、静置时间、相比等操作条件对预处理效果的影响。结果表明,当废水pH为1.10,相比Vw/Vo为6,在20℃、400 r/min下搅拌60 min,静置60 min后水相无色澄清,COD为262 mg/L,COD去除率达99.27%。
Complexing extraction was applied for the pretreatment of CLT acid production wastewater with trioctylamine(TOA) as complexing agent and sulfonated kerosene as diluent. Effects of such operating conditions as pH value of wastewater, temperature, stirring speed, stirring time, settling time and phase ratio Vw /Vo on pretreatment efficiency were investigated. Results showed that when pH value of wastewater was 1.10, phase ratio Vw /Vo was 6, temperature was 20 ℃, stirring speed was 400 r/min, stirring time was 60 min and settling time was 60 min, the raffinate water was achromatic and transparent with a COD of 262 mg/L, the single stage COD removal rate reached 99.27%.
Complexing extraction was applied for the pretreatment of CLT acid production wastewater with trioctylamine(TOA) as complexing agent and sulfonated kerosene as diluent. Effects of such operating conditions as pH value of wastewater, temperature, stirring speed, stirring time, settling time and phase ratio Vw /Vo on pretreatment efficiency were investigated. Results showed that when pH value of wastewater was 1.10, phase ratio Vw /Vo was 6, temperature was 20 ℃, stirring speed was 400 r/min, stirring time was 60 min and settling time was 60 min, the raffinate water was achromatic and transparent with a COD of 262 mg/L, the single stage COD removal rate reached 99.27%.
引文
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[2]经再英.2-萘酚生产废水的处理[J].化工环保,1991,11(3):157-161.
[3]祝万鹏,杨志华,王利.臭氧氧化法处理染料中间体1-氨基蒽醌和DSD酸生产废水[J].化工环保,1994,14(5):268-273.
[4]祝万鹏,杨志华,王利,等.Fe2+-H2O2法处理DSD酸生产氧化母液的研究[J].环境科学,1995,16(1):19-22.
[5]Zhu Wan Peng,Yang Zhi Hua,Wang Li.Application of ferroushydrogen peroxide for the treatment of H-acid manufacturing process wastewater[J].Water Research,1996,30(12):2949-2954.
[6]鲁军,金锡标,朱红慧,等.液膜萃取法处理有机磺酸型工业废水[J].化工环保,1993,13(5):258-262.
[7]徐鸽,刘天华,邹宏良,等.树脂吸附法处理氨基J酸废水的研究[J].江苏化工学院学报,1991,3(4):22-28.
[8]胡大波.大孔树脂NG-13处理β-萘磺酸废水的研究[J].中国资源综合利用,2012,30(4):33-36.
[9]仉蕾,魏兴义,刘勇弟.萃取法处理萤光废水[J].化工环保,1995,15(1):28-31.
[10]鲁军,周宏德,魏兴义.用络合萃取法对磺酸型有机废水进行预处理的研究[J].化工环保,1995,15(2):67-72.
[11]魏凤玉,彭书传,崔鹏,等.络合萃取法处理β-萘磺酸钠工业废水[J].工业用水与废水,2000,31(1):22-24.
[12]李振宇,秦炜,杨义燕,等.反应萃取处理染料中间体H酸和DSD酸工业废水[J].环境科学,2001,22(6):57-60.
[13]Hu Hu Sheng,Yang Ming De,Dang Jie.Treatment of strong acid dye wastewater by solvent extraction[J].Separation and Purification Technology,2005,42(2):129-136.
[14]安晓峰,蒲文晶.萃取法治理CLT酸酸析废水研究[J].工业用水与废水,2000,31(2):26-28.
[15]修艳华,李贞玉,李长海.络合萃取技术处理CLT酸废水[J].长春工业大学学报:自然科学版,2005,26(2):96-98.
[16]王开毅,成本诚,舒万银.溶剂萃取化学[M].长沙:中南工业大学出版社,1991,101.
[17]Jitka Vachtová,Ale Heyberger,Miroslav Mrnka,et al.Extraction of sulfuric acid with trialkylamine in a mixed diluents[J].Industrial and Engineering Chemistry Research,1999,38(5):2028-2035.
[18]E Hauer,R Marr.Liquid extraction in biotechnology[J].International Chemical Engineering,1994,34(2):178-187.
[19]何燧源,金云云,张健,等.用萃取第三相形成法治理β-萘磺酸废水Ⅰ.β-萘磺酸-水-三辛胺(苯)体系的萃取机理[J].华东理工大学学报,1995,21(1):99-102.
[20]何燧源,赵庆祥,金云云,等.用萃取第三相形成法治理β-萘磺酸废水Ⅱ.β-萘磺酸-水-三辛胺(煤油)体系的萃取机理[J].华东理工大学学报,1995,21(1):103-106.