Full-quantitative treatment method for landfill leachate

A technology for quantitative treatment of landfill leachate, which is applied in the fields of filtration treatment, contaminated groundwater/leachate treatment, chemical instruments and methods, etc., and can solve problems such as incomplete treatment of landfill leachate

Pending Publication Date: 2021-07-06
湖南天为环保科技有限公司
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  • Abstract
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[0005] The main purpose of the present invention is to provide a fully quantitative treatment method for landfi

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  • Full-quantitative treatment method for landfill leachate

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[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship, movement conditions, etc. between the components in a certain posture (as shown in the drawings), If the specific posture changes, the directional indication also changes accordingly.

[0035] In addition, in the present invention, descript...

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Abstract

The invention provides a full-quantitative treatment method for landfill leachate. The method comprises the following steps: sequentially carrying out microfiltration treatment and multi-stage disc tube type reverse osmosis device treatment on landfill leachate to obtain a concentrated solution and a permeate; carrying out evaporation treatment on the concentrated solution to obtain an evaporation mother liquor and condensed water; carrying out circulation treatment on the condensed water, wherein the circulation treatment comprises the steps that the condensed water flows back to the multi-stage disc tube type reverse osmosis device to be subjected to osmosis treatment; pre-treating the evaporation mother liquor to obtain a to-be-treated liquid, wherein the pretreatment comprises one or more of filtering treatment, feeding and mixing treatment and deamination treatment; carrying out final treatment on the to-be-treated liquid, wherein the final treatment comprises cement lime absorption curing treatment or cement kiln cooperative treatment. According to the invention, the landfill leachate can be treated more completely by matching multiple modes such as microbiological treatment, deamination treatment, solidification treatment or cement kiln cooperative treatment, denitration and desulfurization and the like.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to a method for fully quantitatively treating landfill leachate. Background technique [0002] With the rapid development of my country's economy and population growth, domestic waste has become one of the main factors of environmental pollution. However, due to the moisture of domestic garbage itself, combined with groundwater, rainwater, etc., a large amount of landfill leachate is produced, and so far, most of it is leachate from old landfills. Landfill leachate is a kind of yellowish-brown or black organic wastewater with a foul smell. The garbage composition is complex, and the leachate contains a large amount of refractory organic matter, inorganic salts and various toxic and harmful pollutants, which will affect the environment, Animals, plants, and humans have long-term potential hazards. Biochemical treatment requires a large amount of carbon sources, resulting in a su...

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Application Information

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IPC IPC(8): C02F9/10C02F9/14B01D53/48B01D53/56B01D53/80F27D17/00C02F101/20C02F103/06
CPCC02F9/00B01D53/80B01D53/56B01D53/48F27D17/008C02F1/00C02F1/444C02F1/441C02F1/04C02F2301/043C02F1/001C02F1/20C02F2103/06C02F3/34C02F2101/20B01D2258/0283B01D2251/404Y02P10/25
Inventor 周甜蔡昕彤黄敏罗雅婧陈金煊朱晋荣
Owner 湖南天为环保科技有限公司
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