Comprehensive Treatment of Hydroblic Cleaning and Wet Dedusting Wastewater
Journal of Dalian Jiaotong University(2013)
摘要
Treatment of wastewaters from the processes of hydraulic cleaning and wet dedusting was investigated,and suitable treatment process and operation parameters were determined.The experiment results indicate that the combined coagulation and biochemical treatment is efficient to remove most of the suspended solid of the wastewater.Under the coagulation with 100 mg/L of PAC and 10 mg/L of PAM,COD and SS removal efficiencies are 28% and 64% respectively.The effect of combined anaeraobic biochemical treatment is better than that of single oxic treatment.Under the condition of hydrogen retention time of anaerobic tank and oxic tank being 4 h and 8 h respectively,COD removal efficiency reaches to 85%,the effluent COD concentration is less than 40 mg/L,and the effluent can be reused as supplement water for hydraulic cleaning and wet dedusting.
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关键词
hydraulic cleaning wastewater,anaerobic-oxic process,coagulation,wet dedusting wastewater
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