WANG Han,XU Min,GENG Zhen.Process Design of Solid Waste Wastewater Treatment Plant of Taiyuan Circular Economy and Environmental Sanitation Industrial Park[J].China Water & Wastewater,2021,37(2 2):37-41.
Process Design of Solid Waste Wastewater Treatment Plant of Taiyuan Circular Economy and Environmental Sanitation Industrial Park
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
2 2
Page:
37-41
Column:
Date of publication:
2021-01-17
- Keywords:
- leachate of incineration plant; anaerobic digestion liquid of kitchen waste; cavitation air flotation; internal circulation anaerobic reactor; MBR
- Abstract:
- To solve the problem of the treatment of high concentration wastewater in the process of domestic waste incineration, kitchen waste treatment and other solid waste treatment and disposal in Taiyuan Circular Economy and Environmental Sanitation Industrial Park, a new sewage treatment plant was built. The design capacity was 1 200 t/d， which mainly included 750 t/d landfill leachate of incineration plant and 450 t/d anaerobic digestion liquid of kitchen waste. The core treatment process of leachate was “air flotation+regulating tank+internal circulation anaerobic reactor+two-stage A/O-MBR”. The core treatment process of kitchen waste anaerobic biogas liquid was “air flotation+regulating tank+two-stage A/O-MBR”. And “centrifugal dehydration+thermal drying” was used as the core treatment process of sludge while the water content reached less than 30% after dewatering. Then the dewatered sludge was sent to the incineration plant for incineration by sealed vehicles. The trial operation results showed that the effluent quality was stable and corresponded to the design standard. The total investment of sewage treatment plant was 130 million yuan. The direct cost of wastewater treatment was 23.5 yuan/t.
Last Update:
2021-01-17