New anaerobic reactor for treating landfill leachate wastewater

Abstract

The invention discloses a new anaerobic reactor for treating landfill leachate wastewater. The new anaerobic reactor for treating landfill leachate wastewater comprises an anaerobic reactor and a computer full-automatic monitoring system, wherein the computer full-automatic monitoring system is in control connection with the anaerobic reactor, the temperature and flow rate of the anaerobic reactorduring the operation process are both controlled through the computer full-automatic monitoring system, and the anaerobic reactor comprises a water inlet pipe, a steel structure tank, a water-distributing sand-settling plate, a steel structure platform, a first-layer guide plate separator, a second-layer guide plate separator, a first-layer guide plate separator biogas lift pipe, an internal circulation return pipe, a biogas dehydrator, a second-layer guide plate separator biogas lift pipe, a water outlet pipe, an outer circulation pipe and a sand discharge pipe. Water is distributed by usinga swirling tangential line to reduce dead zones and short flows of the operation of the anaerobic reactor; the biochemical reaction of wastewater and anaerobic microorganisms is increased; the two layers of the guide plate separators are arranged, to increase the sludge interception and further improve the collection efficiency of biogas; the operational efficiency of the anaerobic reactor is enhanced.

Description

technical field [0001] The invention relates to a novel anaerobic reactor used for treating landfill leachate waste water, in particular to the technical field of environmental protection equipment. Background technique [0002] Anaerobic reactor is a wastewater biological treatment technology that realizes the degradation of organic matter under the action of anaerobic microorganisms. Through the regulation of microbial growth environment, the degradation efficiency of anaerobic digestion is improved; anaerobic reactor has low operating energy consumption, high organic load, The advantages of less nitrogen and phosphorus nutrient requirements, less residual sludge, and biogas energy generation have been widely used in landfill leachate treatment. The essence of the operation process of the anaerobic reactor is the process of microorganisms adapting to the environment, changing the morphology of microorganisms and establishing a new ecosystem. Methanogens are the main microb...

AI Technical Summary

Problems solved by technology

The essence of the operation process of the anaerobic reactor is the process of microorganisms adapting to the environment, changing the morphology of microorganisms and establishing a new ecosystem. Methanogens are the main microbial flora of anaerobic reactors. Because of their strict anaerobic growth environment, the growth generation cycle Long, slow growth rate, so that most anaerobic reactors have problems such as long start-up period, low organic load, easy sludge loss, low gas production rate, etc.

Landfill leachate contains high concentrations of organic matter, ammonia nitrogen and a large amount of toxic substances, which will seriously affect the activity of microorganisms and the stable operation of anaerobic reactors

[0003] At present, the existing landfill leachate anaerobic biological treatment technology is mainly based on UASB and EGSB reactors. The anaerobic reactor has a large volume, high construction cost, and low COD volume load during operation (≤5kg COD / ( m 3 d)), organic pollutants removal efficiency is low (≤80%), operation stability is poor, biogas yield is low (≤0.35m 3 / kgCOD)

At the same time, there are problems of difficult maintenance and repair of the reactor and high cost

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