印染废水处理工艺改造及其效益分析
Study on amelioration of dyeing wastewater treatment process and its benefit analysis
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摘要: 通过实验数据分析,对本源微生物菌剂处理印染废水的有效性进行了检验。在此基础上,确定了先生物处理后絮凝的处理方式。进而分析了印染废水原处理工艺中存在的问题,并对其进行了改造,即:以本源微生物菌剂为母菌接种于印染废水中,并结合生物铁填料对其进行处理。工艺改造成功启动后,稳定运行结果显示:复合生化池和接触氧化池的处理工艺对色度和COD的平均去除率分别为:55.69%、55.63%和78.53%、78.21%;出水pH、色度和COD的平均值分别为6.6、13倍和93 mg/L,全部满足标准要求。该工艺大大减少了污泥量,且降低了处理费用。Abstract: The treatment efficiency of dyeing wastewater using origin microorganism bacteria was inspected through analysis of experimental data, based on which the process of first biological treatment followed by flocculation was confirmed. The problems of the old treatment process was analyzed and was improved by inoculation of origin microorganism bacteria into dyeing wastewater combined with the biologic iron filling treatment. After the successful amelioration the process functioned steadily, the chroma and COD removal rates of effluent from compound biochemical pond and contact oxidation tank were 55.69%,55.63%,78.53% and 78.21%,respectively. The final pH, chroma and COD were 6.6, 13 times and 93 mg/L,respectively, which met the standard and drastically decreased the sewage sludge and the treatment cost.
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Key words:
- dyeing wastewater /
- process amelioration /
- origin microorganism bacteria /
- benefit
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