WANG Kai,GAO Bo,ZHANG Lei,et al.Experience in Design and Operation of Wastewater Separate Treatment in the Hazardous Waste Disposal Center[J].China Water & Wastewater,2020,36(16 16):69-73.
Experience in Design and Operation of Wastewater Separate Treatment in the Hazardous Waste Disposal Center
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
16 16
Page:
69-73
Column:
Date of publication:
2020-08-17
- Keywords:
- hazardous waste; wastewater treatment; evaporation system
- Abstract:
- The treatment capacity of a wastewater treatment system of a hazardous waste disposal center in Shandong Province is 235 m3/d. The wastewater was divided into four categories and collected and treated separately according to its different sources and quality characteristics. The production wastewater and initial rainwater were treated by “reduction + neutralization + flocculation and precipitation + activated carbon filtration” process; Incineration wastewater and leachate were treated by evaporation process; Physichemical wastewater was treated by “evaporation+biochemical treatment” process; Domestic sewage and physicochemical evaporation effluent were treated by “O/A+MBR” process. The process flow and design parameters of the four treatment processes were introduced in detail. The actual operation results in the last half year showed that the system operated stably and the water quality fluctuated little. The effluent quality could meet the standard of Wastewater Quality Standards for Discharge to Municipal Sewers (GB/T 31962-2015), the average removal rate of COD,BOD5, NH3-N, TDS was 95.52%, 95.48%, 95.13%, 99.85% respectively, and the treatment cost was 3.7 yuan/m3.
Last Update:
2020-08-17