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Sewage treatment flocculant and preparation method thereof

A technology of sewage treatment and flocculant, which is applied in the direction of water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of unsatisfactory effect, slow reaction rate, large dosage, etc. Achieve the effects of reducing scale deposition, increasing branch chain length, and increasing relative molecular mass

Inactive Publication Date: 2016-03-09
合肥安奎思成套设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing heavy metal chelating flocculant still has the disadvantages of slow reaction rate, unsatisfactory effect and large dosage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of flocculant for sewage treatment proposed by the present invention, its raw material comprises by weight: 105 parts of lignin, 82 parts of propionaldehyde, 26 parts of diethylenetriamine, 38 parts of sodium hydroxymethanesulfonate, 580 parts of isopropanol, 15 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride, 25 parts of polyaluminum ferric sulfate, 15 parts of alum, 23 parts of polychlorinated ferric sulfate, and 28 parts of polyacrylic acid.

[0024] The preparation method of the above-mentioned sewage treatment flocculant that the present invention also proposes comprises the steps:

[0025] S1. After mixing lignin and water, adjust the pH to 10, then add propionaldehyde for stirring, then add diethylenetriamine, raise the temperature to 97° C., and keep the temperature for 3 hours to obtain material a;

[0026] S2. Add sodium hydroxymethanesulfonate to material a to carry out sulfonation reaction. The temperature of sulfonation reaction is 100° C...

Embodiment 2

[0030] A kind of flocculant for sewage treatment proposed by the present invention, its raw material comprises by weight: 115 parts of lignin, 75 parts of propionaldehyde, 29 parts of diethylenetriamine, 35 parts of sodium hydroxymethanesulfonate, 600 parts of isopropanol, 12 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride, 28 parts of polyaluminum ferric sulfate, 12 parts of alum, 26 parts of polychlorinated ferric sulfate, and 25 parts of polyacrylic acid.

[0031] The preparation method of the above-mentioned sewage treatment flocculant that the present invention also proposes comprises the steps:

[0032] S1. After mixing lignin and water, adjust the pH to 10, then add propionaldehyde for stirring, then add diethylenetriamine, heat up to 100°C, and keep it warm for 2.7 hours to obtain material a;

[0033] S2. Add sodium hydroxymethanesulfonate to material a to carry out sulfonation reaction. The temperature of sulfonation reaction is 105° C., keep warm for 2.5 ...

Embodiment 3

[0037] A kind of flocculant for sewage treatment proposed by the present invention, its raw material comprises by weight: 108 parts of lignin, 80 parts of propionaldehyde, 27 parts of diethylenetriamine, 37 parts of sodium hydroxymethanesulfonate, 585 parts of isopropanol, 14 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride, 26 parts of polyaluminum ferric sulfate, 14 parts of alum, 24 parts of polychlorinated ferric sulfate, and 27 parts of polyacrylic acid.

[0038] The preparation method of the above-mentioned sewage treatment flocculant that the present invention also proposes comprises the steps:

[0039] S1. After mixing lignin and water, adjust the pH to 10, then add propionaldehyde for stirring, then add diethylenetriamine, raise the temperature to 98° C., and keep it warm for 2.9 hours to obtain material a;

[0040] S2. Add sodium hydroxymethanesulfonate to material a to carry out sulfonation reaction. The temperature of sulfonation reaction is 102° C., kee...

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PUM

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Abstract

The invention discloses a sewage treatment flocculant. The sewage treatment flocculant comprises the following raw materials in parts by weight: 105-115 parts of xylogen, 75-82 parts of propyl aldehyde, 26-29 parts of diethylenetriamine, 35-38 parts of sodium hydroxymethanesulfonate, 580-600 parts of isopropanol, 12-15 parts of 3-chloro-2-hydroxypropyl trimethyl ammonium chloride, 25-28 parts of polymeric aluminum ferric sulfate, 12-15 parts of alum, 23-26 parts of polymeric ferric chlorosulfate and 25-28 parts of polyacrylic acid. The invention further discloses a preparation method of the sewage treatment flocculant. The sewage treatment flocculant is applied to the treatment of heavy metal sewage, the flocculating performance is good, the removal effect of heavy metals is good, and the scaling can be prevented.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment flocculant and a preparation method thereof. Background technique [0002] Industrial wastewater often contains copper, nickel, lead and other heavy metal ions or their complex ions. Such heavy metal ions or their complex ions are stable in the natural environment, can accumulate in organisms, and have chronic toxicity. If they cannot be properly handled, they will have a serious impact on agriculture and fisheries, and endanger human health. One of the serious problems facing the environment. [0003] At present, the commonly used heavy metal wastewater treatment method is based on the principle of using physical, chemical and biological reactions to transfer the existing position and physical and chemical form of heavy metal ions. Due to the complex composition of heavy metal wastewater, large concentration differences, and strict treatment standar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/54C02F1/56
CPCC02F1/5236C02F1/5263C02F1/54C02F1/56
Inventor 谢安全黄承大
Owner 合肥安奎思成套设备有限公司
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