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Coal gasification wastewater treatment method and device

A technology for coal gasification wastewater and treatment methods, which is used in special compound water treatment, anaerobic digestion treatment, chemical instruments and methods, etc.

Inactive Publication Date: 2021-05-11
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for treating coal gasification wastewater, which solves the problems of how to treat coal gasification wastewater and increase methane production

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  • Coal gasification wastewater treatment method and device
  • Coal gasification wastewater treatment method and device
  • Coal gasification wastewater treatment method and device

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Embodiment Construction

[0054] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to a coal gasification wastewater treatment method, which comprises: S1, inoculating anaerobic sludge into wastewater, and adding co-substrate glucose according to a mass ratio of glucose to total phenols in the wastewater of 1:1; and S2, supernatant liquid obtained after the reaction in the S1 is taken, anaerobic sludge is inoculated, zero-valent iron is added, the mass ratio of the zero-valent iron to total phenols in the wastewater before treatment in the S1 is 1:1, the pH is adjusted to 6-8, and gas generated by the reaction is collected. The invention also relates to a coal gasification wastewater treatment device. The coal gasification wastewater treatment device comprises two phases of reactors, namely a reactor I and a reactor II, the reactor II further forms two reaction chambers, sufficient contact of anaerobic granular sludge and zero-valent iron is facilitated, and better direct interspecific electron transfer among anaerobic microorganisms is promoted. The methane yield after coal gasification wastewater treatment can be improved.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and relates to an industrial wastewater treatment method, in particular to a coal gasification wastewater treatment method. Background technique [0002] Coal gasification wastewater is the wastewater produced by the action of coal and gasification agent under high temperature and high pressure conditions, mainly from the washing, condensation and fractionation process. Wastewater contains high concentrations of pollutants. The water quality is complex and contains toxic and harmful substances such as ammonia nitrogen and cyanide, as well as organic carbon compounds such as phenols, heterocyclics, long-chain alkanes, and aromatic hydrocarbons. It has high pollutant concentrations and large wastewater discharges. , High difficulty in handling, high operating costs and other issues. [0003] In the treatment of coal gasification wastewater, the removal of phenols needs to be considered. Phenol...

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Application Information

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IPC IPC(8): C02F3/28C02F3/34C12P5/02C12M1/107C02F101/34
CPCC02F3/28C02F3/342C12P5/023C12M21/04C02F2305/06C02F2101/345Y02E50/30
Inventor 李雅婕李勇廖家林刘宏波
Owner SUZHOU UNIV OF SCI & TECH
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