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Treatment method of wastewater containing grease

A technology for wastewater treatment and sewage treatment agent, which is used in adsorption water/sewage treatment, flocculation/sedimentation water/sewage treatment, separation methods, etc. It can solve the problems of difficult to achieve oil-water separation and sewage purification indicators, and achieve product stability. Good, simple operation, fast purification effect

Active Publication Date: 2014-03-26
瀚蓝工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it difficult to achieve qualified oil-water separation and sewage purification indicators using traditional sewage treatment agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of wastewater treatment method containing grease of the present invention, comprises the following steps:

[0018] (1) Adjust the pH value of the sewage to 7.0-8.5 by adding a pH regulator;

[0019] (2) After adding sewage treatment agent, stir and mix at 200-300r / min;

[0020] (3) Recover the supernatant after precipitation.

[0021] The pH regulator is at least one of hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, and calcium oxide.

[0022] The sewage treatment agent includes the following components by weight ratio: 16 parts of polyferric chloride, 12 parts of polyacrylamide, 10 parts of polyethyleneimine, 38 parts of bentonite, 8 parts of sodium chloride, 1 part of lime, and 8 parts of sodium hydroxide Parts, 7 parts of alum, 25 parts of adsorbate.

[0023] Adsorbents include sawdust, straw, activated carbon, and rice husk, among which activated carbon adsorbents account for one-third to one-half of the total weight of adsorbents. ...

Embodiment 2

[0027] A kind of wastewater treatment method containing grease of the present invention, comprises the following steps:

[0028] (1) Adjust the pH value of the sewage to 7.0-8.5 by adding a pH regulator;

[0029] (2) After adding sewage treatment agent, stir and mix at 200-300r / min;

[0030] (3) Recover the supernatant after precipitation.

[0031] The pH regulator is at least one of hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, and calcium oxide.

[0032] The sewage treatment agent includes the following components by weight: 20 parts of polyferric chloride, 15 parts of polyacrylamide, 12 parts of polyethyleneimine, 43 parts of bentonite, 15 parts of sodium chloride, 1.5 parts of lime, 10 parts of sodium hydroxide Parts, 15 parts of alum, 30 parts of adsorbate.

[0033] Adsorbents include sawdust, straw, activated carbon, and rice husk, among which activated carbon adsorbents account for one-third to one-half of the total weight of adsorbents.

[0...

Embodiment 3

[0037] A kind of wastewater treatment method containing grease of the present invention, comprises the following steps:

[0038] (1) Adjust the pH value of the sewage to 7.0-8.5 by adding a pH regulator;

[0039] (2) After adding sewage treatment agent, stir and mix at 200-300r / min;

[0040] (3) Recover the supernatant after precipitation.

[0041] The pH regulator is at least one of hydrochloric acid, sulfuric acid, sodium hydroxide, sodium carbonate, and calcium oxide.

[0042] The sewage treatment agent includes the following components by weight: 15 parts of polyferric trichloride, 10 parts of polyacrylamide, 7 parts of polyethyleneimine, 28 parts of bentonite, 5 parts of sodium chloride, 0.55 parts of lime, 5 parts of sodium hydroxide parts, 5 parts of alum, 20 parts of adsorbate.

[0043] Adsorbents include sawdust, straw, activated carbon, and rice husk, among which activated carbon adsorbents account for one-third to one-half of the total weight of adsorbents.

[0...

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PUM

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Abstract

The invention discloses a treatment method of wastewater containing grease. The pH value of the wastewater is adjusted to 7.0-8.5 by adding a pH regulator, a wastewater treatment agent is added and then evenly stirred and mixed, and supernate is recovered after precipitation. The treatment agent can effectively process the wastewater containing grease, and is low in cost and good in effect, and pollution to an ecological environment caused by the wastewater containing grease is relieved. The grease content of the wastewater after being processed by the method disclosed by the invention can be up to below 12mg / L.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a treatment method for sewage containing oil. Background technique [0002] Many of domestic wastewater and industrial wastewater contain a large amount of oil, resulting in high viscosity of sewage, oil droplets and suspended solids floating or settling slowly in the water phase, which directly affects the demulsification and flocculation effect in the water treatment process. This makes it difficult to achieve qualified oil-water separation and sewage purification indicators using traditional sewage treatment agents. Therefore, a method for treating wastewater containing grease is currently needed. Contents of the invention [0003] Purpose of the present invention is exactly to provide a kind of wastewater treatment method that contains oils and fats in view of the above-mentioned defective. The treatment agent can effectively treat the oily sewage, has low cost a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/40C02F1/28C02F1/52C02F1/56
Inventor 牟军平刘晓
Owner 瀚蓝工程技术有限公司
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