Identification of Hazardous Characteristics of Waste water Treatment Sludge from A Company Producing Integrated Circuit Chips
The management of solid waste and hazardous waste has become a key focus of ecological civilization construction,but the overall identification level of hazardous waste identification units in China should be further enhanced.In recent years,the identification reports of hazardous waste involving fluorine-containing sludge in the integrated circuit industry have mainly focused on situations where there is a single source of wastewater.Taking company A,which produced integrated circuit chips,as an example,its fluorine-containing wastewater treatment system and grinding wastewater treatment system shared a set of plate-and-frame filter presses.The filter press sludge was a mixed sludge generated by the two wastewater treatment systems.The hazardous characteristics of the mixed sludge were identified through methods such as solid waste judgment,directory judgment,traceability analysis,initial screening analysis and sampling detection.Results showed that the sludge did not have hazardous characteristics such as corrosiveness,acute toxicity,leaching toxicity,flammability,reactivity,toxic substances,providing some reference for hazardous waste identification work.
hazardous wastewastewater treatment sludgeidentification of hazardous characteristics
万方数据
维普
