Vehicle-mounted mobile landfill leachate emergency treatment method and system

A landfill leachate and emergency treatment technology, which is applied in the field of vehicle-mounted mobile landfill leachate emergency treatment, can solve the problems of no way to further process leachate, limited processing capacity of treatment plants, and sudden increase in leachate output, etc., to facilitate vehicle transportation and operations, meet the needs of emergency treatment, and the effect of ingenious structural design

Pending Publication Date: 2021-04-06
GUANGZHOU HUALYU ENVIRONMENTAL PROTECTION SCI & TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The membrane process only concentrates and separates the pollutants, and the high-salt concentrated liquid discharged from it is refilled into the landfill. The same is true for the evaporation method and the membrane method, and the concentrated liquid also needs to be recharged. After long-term operation, the leachate salt The degree of increase makes the entire leachate treatment system unable to operate normally, and the landfill leachate gradually accumulates
The current waste emergency treatment engineering vehicles all adopt high-pressure reverse osmosis method, but the continuous recharge of the concentrated liquid water leads to the continuous increase of the salt concentration, and there is almost no way to further treat the leachate
[0004] ...

Method used

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  • Vehicle-mounted mobile landfill leachate emergency treatment method and system

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Embodiment 1

[0039] See figure 1 The vehicle-mounted mobile landfill leachate emergency treatment system provided in this embodiment is an integrated system that arranges all components in a container and is convenient for vehicle-mounted movement and operation. The container and the equipment in the box can be integrally installed in the Carry out emergency treatment operations on the car, specifically a set of treatment scale of 50m 3 / d, dealing with landfill leachate emergency treatment system with ammonia nitrogen concentration of 1000mg / L and carbon nitrogen ratio of 2.

[0040] It includes connected by pipelines: water inlet pump 1, nanofiltration treatment device 2, nanofiltration outlet water pump with low organic concentration 3, nitrosation-anammox synchronous reaction device 4, nitrosation-anammox synchronous reaction out Water pump 5, denitrification biological filter chamber (DN-BAF) 6, denitrification effluent pump 7, ozone-aeration biological filter chamber (O 3 -BAF) 8, ...

Embodiment 2

[0054] The vehicle-mounted mobile landfill leachate emergency treatment method and system provided in this embodiment are basically the same as the embodiment, the difference is that it is specifically a set of treatment scale of 10m 3 / d, anaerobic ammonium oxidation reaction treatment leachate treatment system with a nitrogen load of 1.0KgN / (m3·d), the ammonia nitrogen removal rate is above 85%, the total nitrogen removal rate is above 75%, and CODcr≤100mg / L.

[0055] The ammonia nitrogen adsorption filler described in step 3) of this embodiment is artificial zeolite. In other embodiments, a mixture of natural zeolite and artificial zeolite can also be used, both of which can achieve the technical effect of the present invention.

[0056] After actual testing, compared with the currently commonly used leachate emergency treatment equipment and technology, similar projects can save engineering investment by 12,000 yuan / m 3 , including saving operating costs of about 8.5 yuan...

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Abstract

The invention discloses a vehicle-mounted mobile landfill leachate emergency treatment method which comprises the following steps: arranging a mobile vehicle-mounted landfill leachate emergency treatment system, and firstly carrying out nanofiltration treatment on leachate; subjecting the nanofiltration effluent to nitrosation anaerobic ammonia oxidation treatment, subjecting the nanofiltration concentrated solution to polyferric coagulation treatment, and mixing supernatant and the nitrosation anaerobic ammonia oxidation treatment effluent for subsequent advanced treatment; treating in a denitrification aeration biological filter chamber and then carrying out denitrification treatment; and introducing the wastewater into an ozone aeration biological filter chamber to decompose, destroy and carbonize refractory organic matters, further removing residual organic matters and ammonia nitrogen in the wastewater, and finally discharging the effluent after reaching the standard. The invention further discloses a system for implementing the method. The system is an integrated system in which all the components are arranged in a container, so that vehicle-mounted movement and operation are facilitated. No concentrated solution is discharged, no external carbon source is needed, the aeration rate is reduced, the sludge yield is low, and the method is suitable for emergency treatment.

Description

technical field [0001] The invention relates to the technical field of water pollution treatment for environmental protection. Specifically, the invention relates to a vehicle-mounted mobile landfill leachate emergency treatment method and system. Background technique [0002] Landfill leachate is a typical high-concentration wastewater containing high ammonia nitrogen and refractory organic matter, which is extremely difficult to treat. The key to its treatment standard is how to effectively remove ammonia nitrogen, total nitrogen and refractory organic matter. Domestic conventional landfill leachate treatment generally adopts the "biochemical method + membrane method" process. The biochemical method uses complete nitrification and denitrification to remove ammonia nitrogen and total nitrogen in the leachate, while the biochemical effluent is further treated by nanofiltration + reverse osmosis membrane technology. The complete nitrification of high-concentration ammonia-...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/06C02F101/16C02F101/30
CPCC02F1/281C02F1/442C02F1/5236C02F1/5281C02F1/78C02F3/06C02F3/307C02F9/00C02F2001/007C02F2101/16C02F2101/30C02F2103/06C02F2201/008C02F2209/16
Inventor 姜元臻袁延磊汪晓军简磊顾晓扬马峡珍李炳辉雷磊
Owner GUANGZHOU HUALYU ENVIRONMENTAL PROTECTION SCI & TECH CO LTD
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