Vehicle-mounted mobile landfill leachate emergency treatment method and system

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-...

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