Disscuss on the Disposal and Reuse of Sludge Produced in Wastewater Treatment of Printing and Dyeing Enterprises

The sewage treatment plant plays an important role in the implementation of pollution reducing and the improvement of environmental quality in the region.However,during the wastewater treatment of printing and dyeing Enterprises,a vast amount of sludge is produced.These sewage sludge has not only high moisture content and with a large size,but also toxic and hazardous substances.Without a proper and safe disposal,a secondary pollution will be inevitable.In the past,a temporary landfill of sludges is mainly used.As a result,it not only took up large land,but also caused groundwater contamination.Different from this method,a Changzhou City based enterprise named Changzhou New Sludge Disposal Co.,Ltd.uses the heat from gas fume to dispose dyeing sludge,which achieves tagets of using one waste to treat another and waste utilization and recycling.Thus such disposal method has a good value of application and popularity.