Treatment system for leachate in domestic waste landfill and application of system
A domestic garbage and treatment system technology, which is applied in the field of environmental protection equipment, can solve the problems that the effluent water quality cannot be stably met, cannot be properly resolved, and the water production rate is low.
Pending Publication Date: 2019-06-07
北京航天环境工程有限公司
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Problems solved by technology
Due to the fact that sometimes the daily discharge of leachate from domestic waste landfills is relatively large, sometimes reaching 150-200 tons / day, the existing leachate treatment system can no longer meet the water treatment requirements, and most of the existing leachate treatment systems have not The biochemical treatment equipment is installed, and high-concentration organic matter clogs the membrane seriously. After long-term use, the water production rate will be low, and the effluent water quality will not be able to meet the standard stably. Moreover, the sewage containing high-concentration organic matter after treatment cannot be properly resolved. , so one or several related treatment equipment is urgently needed to meet the water treatment requirements
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[0021] The present invention will be described in further detail below in conjunction with specific examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
[0022] Structures not described in detail in the present invention can be understood as conventional structures in the art.
[0023] A treatment system for leachate from a domestic waste landfill, such as figure 1 As shown, the system includes a homogeneous tank, a coagulation sedimentation tank, a first-level denitrification tank, a first-level nitrification tank, an external ultrafiltration membrane system, a UF clean water tank, a first-level DTRO system, a second-level DTRO system, and a clean water tank , sludge thickening tank, sludge dewatering machine, FeCl 3 Dosing system, blast aeration room, Fenton oxidation system, DTNF system, high-pressure reverse osmosis system (ie HPRO system) and MVR evaporator, the homogeneous tank, coagulat...
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The invention relates to a treatment system for leachate in a domestic waste landfill. The system comprises a homogenization tank, a coagulation sedimentation tank, a primary denitrification tank, a primary nitrification tank, an externally-arranged ultrafiltration membrane system, a UF clean water tank, a primary DTRO system, a secondary DTRO system, a clear water tank, a sludge concentration tank, a sludge dewatering machine, a FeCl3 adding system, a blast aeration room, a Fenton oxidation system, a DTNF system, a high-pressure reverse osmosis system and an MVR evaporator. The system provided by the invention has the advantages of reliable operation, low operating costs, compact layout and reduced occupied land and investment costs; the primary denitrification tank, the primary nitrification tank and the externally-arranged ultrafiltration membrane system are arranged, so that the system can perform biochemical treatment and reduce COD and ammonia nitrogen of influent water, remove high-concentration organic matter, and improve a water output rate; and the system can treat the leachate in the domestic waste landfill, enable the leachate to meet the standard to be discharged, andcan meet usage requirements.
Description
technical field [0001] The invention belongs to the technical field of environmental protection equipment, in particular to a treatment system and application of leachate from a domestic waste landfill. Background technique [0002] At present, the leachate of the domestic waste landfill refers to the water contained in the waste itself in the landfill, the rain and snow water and other water entering the landfill, deducting the saturated water holding capacity of the waste and the covering soil, and passing through the waste layer A high-concentration organic wastewater formed with the overburden layer. Due to the fact that sometimes the daily discharge of leachate from domestic waste landfills is relatively large, sometimes reaching 150-200 tons per day, the existing leachate treatment system can no longer meet the water treatment requirements, and most of the existing leachate treatment systems have not The biochemical treatment equipment is installed, and high-concentra...
Claims
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Login to View More IPC IPC(8): C02F9/14C02F103/06C02F101/16C02F101/30
Inventor 吴雅菲范博葛超逸王康马洁宗熙敬李鹏飞
Owner 北京航天环境工程有限公司