超声波处理VC发酵污水/污泥的研究

利用特制高功率超声波发生器对某维生素C制造厂的污水及污泥进行处理,研究超声波对难降解有机废水好氧生化降解效率及污泥减量化的影响.结果表明:特制超声波发生器对好氧接触氧化池进水进行高功率较长时间(2 860 W,5 min)超声处理,可去除56%的COD,B/C比从0.13提高到0.22;对推流式曝气池进水进行超声(2 860 W,2 min)处理,可去除33%的COD,B/C比提高一倍以上(从0.11提高到0.23);并且超声处理降低了接触氧化池之后的二沉池剩余污泥的沉降体积,促进了污泥井中混合剩余污泥中某些易被生化降解的物质由固相转移到液相,进而达到污泥减量化的目的.

Studies on Ultrasonic Treatment on VC Fermentation Wastewater and Sludge

The impact of ultrasonic on the aerobic biochemical degradation efficiency of refractory organic wastewater and sludge reduction was studied through dealing with the sewage and sludge which were from a vitamin C manufacturing factory using the special high-power ultrasonic generator.The results showed that:high power and long ultrasonic treatment time to the contact oxidation tank inlet sewage could remove 56% of the COD,and increase B / C ratio from 0.13 to 0.22.The ultrasonic treatment to the Plug flow aeration tank inlet sewage could remove 33% of COD and B/C ratio was more than doubled(from 0.11 to 0.23).Furthermore,ultrasound treatment could reduce settling volume of the second settling ponds after contacting the oxidation tank,and promote some material,which is easily degradated in the residual sludge of sludge well,to transfer from solid to liquid to achieve the purpose of sludge reduction.