| 新型电沉积-生物膜复合工艺处理含Cr3+有机废水 |
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| 引用本文： | 李天成,李鑫钢,冯霞,姜斌,王大为,袁绍军.新型电沉积-生物膜复合工艺处理含Cr3+有机废水[J].天津大学学报(英文版),2002,8(4):226-230. |
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| 作者姓名： | 李天成 李鑫钢 冯霞 姜斌 王大为 袁绍军 |
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| 作者单位： | 1. 天津大学化工学院,天津,300072
2. 太原化肥厂水汽车间,太原,030021 |
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| 基金项目： | TianjinNaturalScienceFoundation(No.0 1 380 2 91 1 ) |
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| 摘 要： | 采用新型电沉积 生物膜复合工艺处理含重金属离子 (Cr3 + )有机废水 ,阐述其作用机理 .实验废水中的有机物由生物膜中的复合微生物菌群作为营养源而消耗 ;重金属离子则一部分通过电沉积去除 ,另一部分通过生物膜吸附而去除 ,净化后废水能够达到工业回用水标准 .探讨了培养、驯化后的复合微生物降解有机物动力学速率 ,并将采用复合工艺与单纯的电沉积工艺及生物膜工艺处理含重金属离子有机废水的实验结果进行对比 ,结果表明 ,C6H12 O6含量为 5 0 0mg·L-1及Cr3 + 含量为 10mg·L-1的废水 ,利用复合工艺净化处理后 ,C6H12 O6含量为 2 0— 30mg·L-1,Cr3 + 含量低于 1mg·L-1.
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| 关 键 词： | 电沉积 重金属离子 生物吸附 有机物 生物降解 |
Treatment of Organic Wastewater Containing Cr3 + by a Novel Complex Process of Electrodeposition and Biofilm |
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| LI Tian-cheng,LI Xin-gang,FENG Xia,JIANG Bin,WANG Da-wei,YUAN Shao-jun.Treatment of Organic Wastewater Containing Cr3 + by a Novel Complex Process of Electrodeposition and Biofilm[J].Transactions of Tianjin University,2002,8(4):226-230. |
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| Authors: | LI Tian-cheng LI Xin-gang FENG Xia JIANG Bin WANG Da-wei YUAN Shao-jun |
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| Abstract: | A novel complex process of electrodeposition and biofilm is utilized to treat organic wastewater contai-ning Cr3+, and its purifying mechanism is also described in this article. In details, organic materials inwastewater are consumed as nutritious source by biofilm composed of microorganism and EPS ( extracellular pol-ysaccharide substance). While one part of heavy metal ions, such as Cr3+ , is removed by electrodeposition,the other part is adsorbed on biofilm. In contrast, experimental data of single electrodeposition or biofilmprocess are listed. Further, the kinetic curves of microbes cultivated or microbes acclimated by Cr3 + to degradeglucose are provided, too. In conclusion, the experimental results indicate that initial wastewater consists ofC6Hi2O6 (500 mg @ L-1), Cr3+ (10 mg @ L-1), after treated with the complex process, concentrations ofC6H12O6 and Cr3+ are on the scale of 15-20 mg @ L-1 , and less than 1 mg @ L-1 , respectively. Purified watercan meet the standards of industrial reused water. |
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| Keywords: | electrodeposition heavy metal ions biosorption organic materials biodegradation |
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