The composition of pollutants in landfill leachate is complex, and the contents of organic matter, ammonia nitrogen and salt are high. Generally speaking, landfill leachate consists of three types: landfill leachate, incineration plant leachate and waste transfer station leachate, among which the quality and quantity of landfill leachate fluctuate the most with the change of seasons. With the acceleration of the growth of municipal waste, the treatment scale of some landfill can not meet the actual demand, and the rainy season is easy to cause the leachate stock to exceed the red line, so the leachate emergency treatment service is ready to come out.
At present, the common emergency service mode of leachate is as follows：
Therefore, considering the long-term benefits, MBR+NF biological treatment is the fundamental method to solve the leachate treatment.
Werley emergency service model
Willy is an environmental service company, in addition to providing one-stop solutions and commissioned operation services for leachate, it can also provide a full range of services for the whole life cycle of leachate treatment projects. Based on the current leachate emergency market, Willy launched an emergency service model based on "DTRO temporary emergency + rapid assembly MBR+NF".
1. Provide DTRO emergency services for 2 to 3 months by using existing DTRO equipment to meet customers' needs.
2, based on the concept of standardized modular design, at the same time to build semi-permanent MBR+NF emergency service facilities in the way of rapid assembly, the biochemical pool is built in the way of LIPP tank or steel tank (15 to 30 days can be put into use), the membrane treatment device is provided in the way of container, the overall service preparation time is about 2 to 3 months.
3, according to the actual needs of the project, RO and concentrated liquid treatment system can be selectively increased, concentrated liquid treatment is recommended to use reduction + evaporation process.
Wellie emergency service model advantages：
The overall emergency services are uninterrupted;
The combination of long and short, in the case of proper planning, not only solves the problem of accumulated leachate, but also solves the problem of newly generated leachate, and fundamentally solves the problems faced by customers in the near and long term;
Since the emergency system does not have any buildings or structures, through the form of service purchase, it can reduce the relevant procedures in the early stage of project construction and save the project start-up time.
Relevant case
Shandong Jiaxiang County waste transfer station supporting leachate emergency treatment service procurement project
Processing scale: 100 tons/day
Treatment process: water quality balance + external MBR+NF
Effluent water quality: COD≤500mg/L, ammonia nitrogen ≤45mg/L, TN≤70mg/L, 6.5≤PH≤9.5
Changzhou Municipal Waste Treatment center leachate treatment upgrade expansion BOT project
Processing scale: 550 tons/day
Treatment process: MBR+ NF/ RO
Effluent quality: "Urban sewage Treatment Plant Pollutant Discharge Standard" (GB18918-2002) Grade A standard
Tiger Chong garbage disposal leachate expansion project purchase service project
Processing scale: 500 tons/day
Treatment process: water quality balance + external MBR+NF+RO
Effluent quality: "Urban sewage Treatment Plant Pollutant Discharge Standard" (GB18918-2002) Grade A standard
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