焦粉吸附-微波催化-芬顿试剂氧化法深度处理煤焦油加工废水的研究
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摘要
以焦粉吸附-微波催化-芬顿试剂氧化法深度处理生物系统处理之后的煤焦油加工废水,研究了废水pH值、焦粉用量、FeSO_4加入量、H_2O_2加入量、微波功率、微波辐射时间对废水处理效果的影响。实验结果表明:在废水pH值为5、焦粉加入量为20 g、FeSO_4加入量为300 mg/L、H_2O_2加入量为1 500 mg/L、微波功率为600 W、微波辐射时间为40 min的工艺条件下,废水色度去除率为93.45%,COD去除率为86.74%。净化出水色度为19.65倍,COD为42.43 mg/L,满足GB16171-2012炼焦化学工业污染物排放标准中的要求。并实现了焦粉的合理利用。
Coal tar waste water after biological treatment was treated by the process of coke powder adsorption-microwave catalysis-Fenton reagent oxidation. The factors affecting the treatment were studied. The experimental results show that, under the conditions of waste water Ph=5,coke powder dosage 20 g,FeSO_4 dosage 300 mg/L, H_2O_2 dosage 1 500 mg/L, microwave power 600 W and microwave irradiation time 40 min, the removal rate of chroma and COD are 93.45% and 86.74% respectively. The processed waste water is clear and with 19.65 times of chroma and 50.34 mg/L of COD, which can meet the national standards of GB16171-2012 for coking chemical industry pollutant emission.
Coal tar waste water after biological treatment was treated by the process of coke powder adsorption-microwave catalysis-Fenton reagent oxidation. The factors affecting the treatment were studied. The experimental results show that, under the conditions of waste water Ph=5,coke powder dosage 20 g,FeSO_4 dosage 300 mg/L, H_2O_2 dosage 1 500 mg/L, microwave power 600 W and microwave irradiation time 40 min, the removal rate of chroma and COD are 93.45% and 86.74% respectively. The processed waste water is clear and with 19.65 times of chroma and 50.34 mg/L of COD, which can meet the national standards of GB16171-2012 for coking chemical industry pollutant emission.
引文
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[9]Lai Peng,Zhao Huazhang,Wang Chao,et al.Advanced treatment of coking wastewater by coagulation and zero-valent iron processes[J].Hazard Mater,2007,147:232-239.
[10]Chu Libing,Wang Jianlong,Dong Jing,et al.Treatment of coking wastewater by an advanced Fenton oxidation process using iron powder and hydrogen per-oxide[J].Chemosphere,2012,86:409-414.
[11]刘红,周志辉,吴克明.Fenton试剂催化氧化-混凝法处理焦化废水的实验研究[J].环境科学与技术,2004,27(2):71-73.
[2]Wang Jianlong,Quan Xiangchun,Wu Libo,et al.Bioaugmentation as a tool to enhance the removal of refractory compound in cokeplant Wastewater[J].Process Biochemistry,2002,38(5):777-781.
[3]Wang Liming,Li Yong,Yu Ping,et al.Biodegradation of phenol at high concentration by a novel fungal strain Paecilomyces variotii JH6[J].Journal of Hazardous Materials,2010,183(1/2/3):366-371.
[4]Lai Peng,Zhao Huazhang,Wang Chao,et al.Advanced treatment of coking wastewater by coagulation and zero-valentiron processes[J].Journal of Hazardous Materials,2007(147):232-239.
[5]Xu Lina,Zhao Huazhang,Ni Jinren.Effect of cathode material on electrolytic treatment of acid orange7 by a three-phase three-dimensional electrode reactor[J].Environmental Science,2008,29(4):942-947.
[6]环境保护部科技标准司.GB16171-2012炼焦化学工业污染物排放标准[S].北京:中国环境科学出版社,2012.
[7]鞠峰,胡勇有.铁屑内电解技术的强化方式及改进措施研究进展[J].环境科学学报,2011,31(12):2585-2594.
[8]王鹏.环境微波化学技术[M].北京:化工出版社,2003.
[9]Lai Peng,Zhao Huazhang,Wang Chao,et al.Advanced treatment of coking wastewater by coagulation and zero-valent iron processes[J].Hazard Mater,2007,147:232-239.
[10]Chu Libing,Wang Jianlong,Dong Jing,et al.Treatment of coking wastewater by an advanced Fenton oxidation process using iron powder and hydrogen per-oxide[J].Chemosphere,2012,86:409-414.
[11]刘红,周志辉,吴克明.Fenton试剂催化氧化-混凝法处理焦化废水的实验研究[J].环境科学与技术,2004,27(2):71-73.