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Method of transforming high concentration organic sewage to solid sate substance

A technology with high concentration of organic sewage, applied in chemical instruments and methods, water pollutants, water/sludge/sewage treatment, etc., can solve problems such as difficult to meet discharge standards, and achieve simple and quick results

Inactive Publication Date: 2007-08-15
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of high-concentration organic sewage treatment, some sewage, such as coking sewage, distiller's grain waste liquid, landfill leachate, papermaking black liquor, some petrochemical and chemical sewage, etc., are treated by conventional biochemical methods, and it is difficult to discharge them up to standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, processing coking sewage:

[0014] The treatment of coking sewage includes steps in the following order: adjusting pH, adding coagulant aid, adding gelling agent, and adding crosslinking agent.

[0015] Before treatment, adjust the pH value of coking sewage to 9, alkaline.

[0016] Add coagulant aid to the sewage and stir for about 10 minutes. The coagulant used is sodium tert-methylcellulose. The concentration of sodium tert-methylcellulose in sewage is 8%, and the dissolution of the coagulant aid adopts the sewage to be solidified to reduce the amount of water introduced (or the coagulant aid is directly added to the liquid and fully stirred to dissolve).

[0017] Afterwards, add gelling agent into the sewage, the concentration is 0.6%, and stir for about 5 minutes. What the gelling agent adopts is polyacrylamide.

[0018] Add the crosslinking agent last. The cross-linking agent is a salt formed by transition metal elements, among which ferric salt ...

Embodiment 2

[0019] Embodiment 2, processing concentrated coking sewage, this concentrated coking sewage is the concentrated solution obtained after membrane method treatment:

[0020] The following sequence steps are included: adjusting pH, adding a coagulant aid, adding a gelling agent, and adding a crosslinking agent. Before operation, adjust the pH value of the sewage to 11, which is alkaline.

[0021] Add coagulant sodium tert-methylcellulose to the concentrate. The dosing concentration of tert-methyl cellulose sodium is 8%, and the dissolving of the coagulant aid adopts the concentrated solution to be solidified (the coagulant aid can also be directly added into the concentrated solution), and the coagulant aid is fully stirred and dissolved for about 10 minutes.

[0022] Then add the gelling agent to the concentrated solution and stir for about 5 minutes. The gel is made of polyacrylamide, the concentration of which is 0.6%.

[0023] Add the crosslinking agent last. The cross-li...

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PUM

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Abstract

The invention discloses a transmitting method of high-density organic effluent into solid material, which is characterized by the following: the coagulant aid, gelling agent and crosslinking agent are put into high-density organic effluent sequently to solidify, wherein the coagulant aid is tert sodium cellulose methyl; the gelling agent is polyacrylamide; the crosslinking agent is transition metal; The solid material is put into effluent to dispose, which makes the effluent reach drainage standard.

Description

technical field [0001] The invention relates to a wastewater treatment method, in particular to a method for converting high-concentration organic sewage into solid matter. Background technique [0002] In the field of high-concentration organic sewage treatment, some sewage, such as coking sewage, distiller's grain waste liquid, landfill leachate, papermaking black liquor, some petrochemical and chemical sewage, etc., are treated by conventional biochemical methods, and it is difficult to meet the discharge standards. Contents of the invention [0003] The purpose of the present invention is to provide a method for converting high-concentration organic sewage into solid matter by adding a curing agent, so as to make it discharge up to the standard or zero discharge. The method is simple, economical and quick. [0004] The present invention is realized according to the following technical scheme: the present invention is a method for converting high-concentration organic s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F101/30
Inventor 居德金钱雷许亚男邹元龙秦华赵锐锐宋华何莉
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP