This article reproduced by China‘s water network
Author: Liao Yang
Source: 2009 International Water Association Conference on Sludge
Published time :2009-08
Keywords: Sewage sludge activated sludge process
The remaining sludge treatment in wastewater treatment costs of high occupancy, based on economic conditions and other factors to consider, how to resolve the remaining sludge is a problem of the challenges we face. As environmental statements and the related legal requirements continue to increase, then the remaining sludge treatment of choice, Mrs increasingly stringent, leading to reduced sludge volume is also an urgent goal, this article highlights the reduction of the excess sludge The main methods: uncoupling, hidden growth, Pu Shi bacteria, heat, ozone, France, OSA France and so on. A suitable physical environment and operational processes will reduce the surplus sludge production, but no matter which way he would use micro-organisms have a certain impact, but will also increase the nitrogen concentration in the water after treatment.