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Method and device for adding coagulant in sewage

A technology of coagulant and sewage, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of incomplete reaction, waste of coagulant, slow reaction, etc.

Inactive Publication Date: 2007-05-30
SUZHOU INDAL PARK HESHUN ENTERPRISE ENVIRONMENTAL PROTECTION SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the coagulation treatment, the coagulant used is the key to the treatment. Now many researchers are actively researching and developing composite coagulants or flocculants, but iron salts or aluminum salts are mainly used. The existing Various coagulants still have some problems. For example, in the process of sewage treatment, the reaction is slow, some coagulants do not react with the suspended solids in the water, and the residual metal elements in the water cause secondary pollution. At the same time Coagulant wasted due to incomplete reaction

Method used

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  • Method and device for adding coagulant in sewage

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Effect test

Embodiment 1

[0015] Embodiment 1 of the present invention: the device that adds coagulant in sewage, inserts medicine spray pipeline (2) in the sewage pipeline (1) that will carry out coagulation treatment, in order to spray medicine effect more evenly, spray medicine pipeline (2) ) is sealed at the bottom, and the spray ports (4) are evenly distributed on the side of the spray pipe (2). According to the diameter of the sewage pipe (1), 2 to 8 spray holes are made port (4), connect two additional pipelines (3) for adding composite elements above the spraying pipeline (2). The coagulant can choose iron salt or aluminum salt, and the compound elements use commonly used substances such as active silicic acid and rare earth.

[0016] After testing, the distance between the connection port of the additional pipeline (3) and the spraying pipeline (2) and the spraying port (4) can be set between 5 and 50 centimeters, so that the mixing time of the medicament will not be too long and affect the E...

Embodiment 2

[0018] Embodiment 2 of the present invention: a device for adding a coagulant to the sewage, inserting the spraying pipeline (2) in the sewage pipeline (1) to be coagulated, in order to make the spraying effect more uniform, the spraying pipeline (2) ), and the spray ports (4) are evenly distributed on the side of the spray pipe (2), and according to the diameter of the sewage pipe (1), 3 to 7 spray holes are made on the side of the spray pipe (2). port (4), connect an additional pipeline (3) for adding composite elements above the spraying pipeline (2). The coagulant can choose iron salt or aluminum salt, and the composite elements use active silicic acid and rare earth.

[0019] The distance between the connection port of the additional pipeline (3) and the spraying pipeline (2) and the spraying port (4) can be set between 10 to 40 centimeters, so that the mixing time of the medicament can be controlled within 2 to 6 seconds, so that The medicament can be mixed evenly and m...

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Abstract

The invention discloses a coagulant adding method and device in the effluent, which is characterized by the following: connecting at least one additional pipe on the drug injecting pipe; adding composite element in the additional pipe to improve coagulant efficiency; blending composite element and coagulant into effluent pipe or outlet effluent; possessing optimal coagulating property; avoiding secondary pollution for water.

Description

technical field [0001] The invention relates to a method and a device for adding a coagulant to sewage, belonging to the technical field of sewage treatment. Background technique [0002] In the prior art, in sewage treatment and water purification, coagulation is one of the very important units. It uses coagulants to change the state of particles in water, destabilize suspended components and colloidal components in water, and in a certain Under certain conditions, such flocs are formed that can be separated by sedimentation or air flotation, and then this part of the flocs is separated by sedimentation or air flotation. In the coagulation treatment, the coagulant used is the key to the treatment. Now many researchers are actively researching and developing composite coagulants or flocculants, but iron salts or aluminum salts are mainly used. The existing Various coagulants still have some problems. For example, in the process of sewage treatment, the reaction is slow, som...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 吕建荣
Owner SUZHOU INDAL PARK HESHUN ENTERPRISE ENVIRONMENTAL PROTECTION SERVICE
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