Biochemical garbage leachate treatment technology

A landfill leachate and treatment process technology, applied in the field of biochemical landfill leachate treatment process, can solve the problems of low metabolic efficiency, high relative energy consumption, and insufficient impact resistance, and achieve high COD removal rate and short contact reaction time , the effect of reducing operating energy consumption

Inactive Publication Date: 2018-11-06
嘉兴市六承环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual ozone oxidation method is limited in use due to its limited treatment efficiency and relatively high energy consumption.
After proper pretreatment, biochemical treatment is also one of the landfill leachate trea

Method used

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Examples

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Example Embodiment

[0017] Preferred embodiments of the present invention will be described in detail below.

[0018] Specific implementation of the present invention: the landfill leachate first enters the pH adjustment tank, and the pH is adjusted to a suitable pH=8-9, and the adjusted water body enters the fine filter tank, and most of the solids are filtered out through the filler inside the fine filter tank particles. The water body treated by the fine filter tank enters the coagulation tank, and the coagulant-polyaluminum chloride is added, mixed and precipitated. Part of COD substances and most macromolecular insolubles can be removed in the coagulation tank. The treated effluent enters the electrolytic cell for electrolysis, in which the titanium alloy electrode and composite electrolyte (industrial sodium chloride, sodium hydroxide, sodium hypochlorite and hydrochloric acid) are used to electrolyze the water body. After electrolytic treatment, more than 90% of ammonia nitrogen can be r...

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Abstract

The invention discloses a biochemical garbage leachate treatment technology. The technology removes ammoniacal nitrogen from a water body by an electrochemical oxidization manner; a composite electrolyte is developed and matched with a specially designed electrode; ammoniacal nitrogen can be effectively removed from the water body under a lower voltage condition; an ammoniacal nitrogen removal effect is improved; and operation energy consumption is reduced. Compared with simple ozone oxidation, catalytical ozone oxidation of a device has a higher COD (chemical oxygen demand) removal rate and shorter contact reaction time; at the same time, an independently developed heterodisperse catalytical ozonization catalyst is added into a catalytical ozone oxidation reaction tank of the device, canbe uniformly dispersed in liquid to be treated, is sufficiently contacted with ozone molecules, and promotes conversion and generation of oxygen radicals and hydroxyl radicals; ozone exerts strong oxidizing ability in a solution and decomposes or converts refractory organic matter into micromolecules easier to remove or mineralizes the refractory organic matter; and a COD value is reduced.

Description

technical field [0001] The invention relates to the field of wastewater treatment. The invention relates to a biochemical landfill leachate treatment process. Background technique [0002] Landfill leachate refers to the moisture contained in the garbage itself in the landfill, the rain and snow water and other moisture entering the landfill, deducting the saturated water holding capacity of the garbage and the covering soil, and passing through the garbage layer and the covering soil. A high concentration of organic wastewater. Its characteristics are: complex water quality components, high COD and BOD concentrations, high ammonia nitrogen concentrations, and many types of organic matter. Based on the above characteristics, the treatment of landfill leachate requires a combination of various technical means in order to meet the requirements of the new discharge standards. The common technologies for removing ammonia nitrogen are deammonization tower, nitrification and de...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/20C02F101/16C02F101/30
CPCC02F1/001C02F1/46104C02F1/5245C02F1/5281C02F1/66C02F1/725C02F1/78C02F3/1215C02F9/00C02F2001/46133C02F2101/16C02F2101/20C02F2101/30C02F2203/006C02F2209/08C02F2209/14C02F2301/08
Inventor 万法磊阮竹成马晓磊许剑飞许翔宇
Owner 嘉兴市六承环保科技有限公司
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