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Efficient sewage treatment flocculant and preparation method thereof

A sewage treatment and flocculant technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of poor removal effect of heavy metal pollutants, long flocculation and sedimentation time, complicated production process, etc., to reduce scale deposition and enhance Adsorption and bridging ability, the effect of improving surface activity

Inactive Publication Date: 2016-02-10
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

[0003] At present, the flocculant used in sewage treatment plants to treat industrial wastewater takes a long time to flocculate and settle, and the production process is complicated, the cost of the product is high, and the removal effect on biological inhibitors, organic pollutants, nitrogen, phosphorus and other substances It is better, but the removal effect of heavy metal pollutants in sewage is poor, and it is easy to cause scaling

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-efficiency sewage treatment flocculant proposed by the present invention, its raw materials include by weight: 100 parts of lignin, 80 parts of propionaldehyde, 25 parts of triethylenetetramine, 35 parts of sodium hydroxymethanesulfonate, 600 parts of n-propanol , 12 parts of 2,3-epoxypropyltrimethylammonium chloride, 23 parts of polyaluminum ferric sulfate, 28 parts of polyphosphorus ferric chloride, 4 parts of aluminum chloride, and 26 parts of sodium polystyrene sulfonate.

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

[0025] S1. After mixing lignin and water, adjust the pH to 10, then add propionaldehyde for stirring, the stirring time is 1.5h, and the stirring speed is 180rpm, then add triethylenetetramine, heat up to 95°C, and keep warm for 2.8h get the first material;

[0026] S2. Add sodium hydroxymethanesulfonate to the first mat...

Embodiment 2

[0030] A high-efficiency sewage treatment flocculant proposed by the present invention, its raw materials include by weight: 110 parts of lignin, 70 parts of propionaldehyde, 30 parts of triethylenetetramine, 32 parts of sodium hydroxymethanesulfonate, 620 parts of n-propanol , 10 parts of 2,3-epoxypropyltrimethylammonium chloride, 26 parts of polyaluminum ferric sulfate, 25 parts of polyphosphorus ferric chloride, 8 parts of aluminum chloride, and 22 parts of sodium polystyrene sulfonate.

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

[0032] S1. After mixing lignin and water, adjust the pH to 10, then add propionaldehyde for stirring, the stirring time is 2.5h, and the stirring speed is 150rpm, then add triethylenetetramine, heat up to 98°C, and keep warm for 2.5h get the first material;

[0033] S2. Add sodium hydroxymethanesulfonate to the first mat...

Embodiment 3

[0037] A high-efficiency sewage treatment flocculant proposed by the present invention, its raw materials include by weight: 102 parts of lignin, 77 parts of propionaldehyde, 26 parts of triethylenetetramine, 34 parts of sodium hydroxymethanesulfonate, 605 parts of n-propanol , 11 parts of 2,3-epoxypropyltrimethylammonium chloride, 24 parts of polyaluminum ferric sulfate, 27 parts of polyphosphorus ferric chloride, 5 parts of aluminum chloride, and 25 parts of sodium polystyrene sulfonate.

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

[0039] S1. After mixing lignin and water, adjust the pH to 10, then add propionaldehyde for stirring, the stirring time is 1.8h, and the stirring speed is 170rpm, then add triethylenetetramine, heat up to 96°C, and keep warm for 2.7h get the first material;

[0040] S2. Add sodium hydroxymethanesulfonate to the first mat...

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PUM

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Abstract

The invention discloses an efficient sewage treatment flocculant which comprises the following raw materials in parts by weight: 100-110 parts of lignin, 70-80 parts of propionaldehyde, 25-30 parts of triethylene tetramine, 32-35 parts of formaldehyde sodium bisulfite addition compound, 600-620 parts of normal propyl alcohol, 10-12 parts of glycidyl trimethyl ammonium chloride, 23-26 parts of poly-ferric aluminum sulfate, 25-28 parts of PPFC, 4-8 parts of aluminium chloride and 22-26 parts of sodium polystyrene sulfonate. The invention further discloses a preparation method of the efficient sewage treatment flocculant. The efficient sewage treatment flocculant obtained through the preparation method is excellent in flocculating performance and heavy metal removal effect and can prevent scaling.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a high-efficiency 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 flocculant used in sewage treatment plants to treat industrial wastewater takes a long time to flocculate and settle, and the production process is complicated, the cost of the product is high, and the removal effect on biological inhibitors, organic pollutants, nitrogen, phosphorus and other substances It is better, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
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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