摘要
污泥膨胀不仅影响出水水质,增大污泥的处理费用,而且极易引起大量污泥流失,严重时可导致整个污水处理系统崩溃。药剂法是一种有效的丝状菌污泥膨胀控制技术,可使污泥膨胀在短时间内得到控制,对于污水厂的运行管理具有较大的实用价值。本试验在以前研究的基础上探索了采用铜离子和食盐(NaCl)在抑制丝状菌膨胀的效果,试验结果表明,铜离子浓度在0.75mg/L时对抑制丝状菌污泥膨胀效果良好,食盐(NaCl)浓度为4g/L时对抑制丝状菌污泥膨胀效果良好,为以后抑制丝状菌膨胀提供一些简单的参考。
The sludge bulking is the main problem in MuniciPal Waste Water TreatmeniPlants (WWTP). The result of sludge bulking is low effluent quality, High biomass loss, even system failure. Medical method is an effective technique to control filamentous bacterium sludge expansion. The fila- mentous sludge expansion can be controlled in a short time by the medical method,and it will save lots of time for finding out the expansion causes. The medical method that can control sludge expan- sion quickly has much practical value to the operation of water treatment plants. The experiments were studied salt and copper ions to control of filamentous sludge bulking effect, the test results show that filamentous bulking can be controlled when the copper ion concentration in the 0.75 mg/L or Salt (NaC1) concentration in the 4 g/L, provided some simple reference for the control of filamentous sludge bulking.
关键词
污泥膨胀
丝状菌膨胀
控制措施
药剂法
铜离子
NACL
filamentous bacteria
sludge expansion
control measures
medical method
copper ions
salt