生物强化技术深度降解含高氯、高盐污水COD、NH_3-N的中试研究

国内某化学工业园污水厂主要处理氯碱厂高含氯、含盐污水和化肥厂氨氮污水。二沉池出水经过生物强化技术深度处理后,出水COD平均值为46.8 mg/L,NH_3-N为1.43 mg/L,出水可稳定控制在《污水综合排放标准》(GB 8978-1996)一级排放标准内。该技术具有良好的可控性,耐冲击负荷能力强,处理效果好,运行稳定,与常规生物治理技术相结合,可使得该技术在废水处理中显示出独特的作用。

Study on Medium Test of Biological Enhancement Technology to Degrade COD and NH3-N in Wastewater Containing High Chloride and Salt

A wastewater treatment plant of a local chemical industry park mainly treats the wastewater from a chlor-alkali plant containing high chlorine and salt,and the wastewater from a fertilizer plant containing ammonia nitrogen.After the wastewater from the second sedimentation tank tread by the advanced biological enhancement technology,the COD average value of effluent is 46.8 mg/L,and the NH_3-N is 1.43 mg/L.The effluent can be stably controlled within the first-grade discharge standard of Integrated Wastewater Discharge Standard(GB8978-1996).This technology has the good controllability,strong resistance of impact load,good treatment effect and stable operation.Combined with the conventional biological treatment technology, the technology can be made to display the distinct role in wastewater treatment.