高压静电处理水对活性污泥耗氧速率的影响研究

Studies on Effect of Water Treated by High Voltage Electrostatic Field on Oxygen Utilization Rating of Activated Sludge.

利用活性污泥微生物膜制成ＢＯＤ生物传感器，发现在经过一定时间高压静电处理后的缓冲液中，活性污泥降解有机物的能力可提高２０％以上，同一电压不同处理时间对微生物降解能力影响不同．处理时间过短或过长对微生物降解能力增加的影响都不明显．不同电压达到良好处理效果所需时间不同，较低电压所需时间较长，５０００Ｖ时约需６．０ｈ（信号响应达到初始值的１２４％），而７０００Ｖ时约为４．０ｈ．结果表明，高压静电处理并接种活性污泥，有望成为处理某些有机物废水的有效方法．

The microorganisms extracted from activated sludge were selected as the sensitive material to make a BOD biosensor for monitoring the metabolic ability of themselves in high voltage electrostatic treated water(HVETW).The oxygen utilization rating of the microorganisms which operated in such an aqueous media for appropriate time,could be promoted by at least 20%. At the same working high voltage,this effect depended on how long the water was treated.The water treated for too long a time would lead to the negative effects.At 5000 V,it took about 6.0 h for the microorganisms to obtain the maximum oxygen utilization rating,whereas it did about 4.0 h at 7000 V.This discovery might offer a great potential for improving the new waste water disposal techniques.