进口废电器拆解垃圾填埋后对生活垃圾渗滤液好氧处理效果的影响

通过测定渗滤液好氧处理装置进出水中的CODcr、Cu、Zn、Ni和油等5项指标,研究了进口废电器拆解垃圾填埋后对生活垃圾渗滤液好氧处理效果的影响.结果表明:进口废电器拆解残余垃圾进入生活垃圾填埋场后,在进口废电器拆解残余垃圾量小于生活垃圾量时,一般不会影响原生活垃圾填埋场渗滤液CODcr、油的好氧处理效果,但均不能使处理后的出水CODcr、油、重金属浓度达到国家一级排放标准,并加快了重金属元素在活性污泥中的积累,以致最终影响活性污泥的生物活性.

Effect of the waste from disassembling import waste electrical equipment on the aerobic treatment of refuse leachate

The effect of the waste from disassembling import waste electrical equipment on the aerobic treatment of refuse leachate was studied by testing the concentrations of COD_(Cr),Cu,Zn,Ni and oil in inlet and outlet of leachate. The results showed that the effect of the aerobic treatment on COD_(Cr) and oil of leachate did not generally change provided the amount of the wastes from disassembling import waste electrical equipment was less than amount of municipal refuse. But COD_(Cr),oil and the metal content of the water in outlet were all higher than that of the first grade of waste discharge as required by the National Standard. So the net result of such treatment was enhancement of metal accumulation in the (activiated) sludge, which ultimately led to unfavorable impact on its biological activity.