Shantou Lestat Domestic Waste Sanitary Landfill Site Reverse Osmosis Advanced Treatment of Leachate
Release time:
2015-01-30
According to Shantou Daily News, January 29, 2015, the Leodashi Domestic Waste Sanitary Landfill is the only harmless treatment site for domestic waste in the central urban area. It is responsible for the consumption of more than 100 million people in the central urban area with a daily output of more than 1350 tons of domestic waste. task. Since the landfill has been in use for more than 10 years and has been operating at full capacity, in order to ensure that the domestic waste generated every day in the central city can be treated in a timely manner, our city will implement the landfill in the "Xiangshanwo" mountain on the southeast side of the landfill. Site expansion project. The reporter learned from the Municipal Urban Management Bureau that the expansion project has completed the land acquisition work and is expected to start in May this year.
It is understood that the estimated total investment of the project is 168.6 million yuan, which is planned and designed according to the treatment scale of 1500 tons/day in the near future and 410 tons/day in the long term. The expansion project is planned as "two areas and one system", that is, domestic waste landfill area, solidified ash landfill area and leachate collection and treatment system. The main construction contents of the project include earthwork, groundwater and leachate drainage project, anti-seepage membrane laying project, flood intercepting ditch project, dam project, landfill gas collection and drainage project, leachate collection and treatment project, etc.
It is understood that in order to prevent the leachate produced by the landfill in the reservoir area from polluting the soil and groundwater in the area, the project side designed the anti-seepage structure of the expansion project with high standards and high starting point, and adopted a composite imported anti-seepage membrane to make the reservoir area completely isolated from the underground and effectively prevent the pollution of leachate. In addition, an advanced leachate treatment system is adopted, and the leachate is treated by deep reverse osmosis technology. After treatment, the quality of garbage water fully meets the national discharge standards. At the same time, the landfill gas recovery and purification technology is used to cover the garbage heap with soil and film, and the landfill gas is extracted and purified into commercial bio-gas, turning waste into treasure.
"Shantou Daily" reporter Yang ke
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