A method and system for treating malodorous and odorous gas of garbage in a multi-stage serial series with humus soil aerobic fixed bed under the sieve of domestic garbage

Abstract

The invention belongs to the field of waste gas treatment, and discloses a method and a system for treating the stench and peculiar smell of garbage with a humus soil aerobic fixed bed under the sieve of domestic waste in multi-stage series series, and the method uses the fixed bed of multi-stage series series to treat the stench and peculiar smell of garbage Gas, the treatment process includes the following steps: 1) Make the gas enter the fixed bed from the air inlet unit at the bottom of the fixed bed, and discharge the gas from the top after being treated by the fixed bed by pumping the top of the fixed bed; Prepare old leachate from existing garbage; 2) Connect the exhausted gas to the bottom air intake unit of the next fixed bed, use multi-stage fixed beds in series to process in sequence and batch rotation, and then discharge up to standard. The method of the present invention combines the treatment of the three kinds of pollution, humus under the sieve, old leachate and odorous gas in the fixed bed, not only can "treat waste with waste", but also can realize three-phase pollution of water, solid and gas "Trinity" balance control goal.

Description

technical field [0001] The invention belongs to the field of waste gas treatment, and in particular relates to a method and a system for treating foul-smelling and peculiar-smelling gas of garbage in a multi-stage series series with a humus soil aerobic fixed bed under the sieve of domestic garbage. Background technique [0002] In the process of excavation, sorting and recycling of existing garbage, there are air pollution problems caused by odorous and odorous gases. The components mainly include sulfur-containing compounds (such as hydrogen sulfide, mercaptan, sulfide, etc.), nitrogen-containing compounds (such as ammonia, Amines, etc.), aromatic hydrocarbons, saturated and unsaturated hydrocarbons, oxygen-containing compounds and halogenated hydrocarbons, etc., have the pollution characteristics of "low concentration and large flow". [0003] Commonly used malodorous gas treatment methods mainly include physical methods, chemical methods, biological methods and deodorant...

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Problems solved by technology

[0007] Aiming at the problems of existing biofiltration deodorization technology, such as easy clogging of reactors, low removal rate of refractory substances in malodorous gas, and unbalanced bed pH, the present invention provides a method for removing humus soil under the sieve, aged The system and method of combining the three pollution treatments of leachate and odorous gas to remove odorous gas from garbage can not only "treat waste with waste", but also achieve the "trinity" balanced control goal of three-phase pollution of water, solid and gas

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