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Sludge dehydrating agent and preparation method thereof

A sludge dewatering agent, diatomite technology, applied in water/sludge/sewage treatment, sludge treatment, chemical instruments and methods, etc. Liquid separation and other problems, to achieve good dehydration effect, less environmental pollution, stable dehydration effect

Pending Publication Date: 2021-12-31
新疆水处理工程技术研究中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is a thick substance between liquid and solid, which can be transported by pump, but it is difficult to separate solid and liquid by settling
[0003] In recent years, with the continuous development of urbanization, the discharge of sewage has continued to increase, and the output of sludge has also increased significantly. However, there has been a phenomenon of "heavy water and light mud" in my country for a long time, and insufficient attention has been paid to sludge treatment. There are a large number of The sludge has not been stabilized and disposed of, causing environmental pollution and endangering human health

Method used

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  • Sludge dehydrating agent and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Ingredients according to the following mass parts: 6 parts of polydimethyldiallyl ammonium chloride, 2 parts of diatomaceous earth, 2 parts of activated carbon, 33 parts of polyaluminum chloride, 3 parts of calcium oxide, 3 parts of plant ash and 51 parts of water , according to the following steps to prepare sludge treatment agent:

[0033] Add water, polydimethyldiallylammonium chloride, and polyaluminum chloride in sequence, control the temperature at 55°C, and stir at a stirring rate of 430rpm for 1.5h;

[0034] Add diatomaceous earth and activated carbon in sequence, control the temperature at 37°C, and stir at a stirring rate of 430rpm for 3h;

[0035] Finally, plant ash and calcium oxide were added, the temperature was controlled at 37° C., stirred at a stirring rate of 430 rpm for 3 hours, and the temperature was naturally lowered.

[0036] Apply the sludge dehydrating agent prepared above to the sludge to be treated. The sludge has a water content of 99%. Add ...

Embodiment 2

[0038] Take 4 parts of polydimethyldiallyl ammonium chloride, 4 parts of diatomaceous earth, 1 part of activated carbon, 38 parts of polyaluminum chloride, 1 part of calcium oxide, 5 parts of plant ash and 45 parts of water, and prepare it according to the following steps: Sludge treatment agent:

[0039] Add water, polydimethyldiallylammonium chloride, and polyaluminum chloride in sequence, control the temperature at 55°C, and stir at a stirring rate of 430rpm for 1.5h;

[0040] Add diatomaceous earth and activated carbon in sequence, control the temperature at 37°C, and stir at a stirring rate of 430rpm for 3h;

[0041] Finally, plant ash and calcium oxide were added, the temperature was controlled at 37° C., stirred at a stirring rate of 430 rpm for 3 hours, and the temperature was naturally lowered.

[0042] Apply the sludge dehydrating agent prepared above to the sludge to be treated. The sludge has a water content of 99%. Add the sludge dehydrating agent equivalent to 0...

Embodiment 3

[0044] Take 9 parts of polydimethyldiallyl ammonium chloride, 1 part of diatomaceous earth, 4 parts of activated carbon, 28 parts of polyaluminum chloride, 5 parts of calcium oxide, 1 part of plant ash and 57 parts of water, and prepare it according to the following steps: Sludge treatment agent:

[0045] Add water, polydimethyldiallylammonium chloride, and polyaluminum chloride in sequence, control the temperature at 55°C, and stir at a stirring rate of 430rpm for 1.5h;

[0046] Add diatomaceous earth and activated carbon in sequence, control the temperature at 37°C, and stir at a stirring rate of 430rpm for 3h;

[0047] Finally, plant ash and calcium oxide were added, the temperature was controlled at 37° C., stirred at a stirring rate of 430 rpm for 3 hours, and the temperature was naturally lowered.

[0048] Apply the sludge dehydrating agent prepared above to the sludge to be treated. The sludge has a moisture content of 99%. Add the sludge dehydrating agent equivalent t...

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Abstract

The invention discloses a sludge dehydrating agent and a preparation method thereof. The sludge dehydrating agent is prepared from the following raw materials in parts by mass: 4-9 parts of poly dimethyl diallyl ammonium chloride, 1-4 parts of diatomite, 1-4 parts of activated carbon, 28-38 parts of polyaluminum chloride, 1-5 parts of calcium oxide, 1-5 parts of plant ash and 45-57 parts of water. The sludge dehydrating agent can more efficiently and quickly exert the sludge dehydrating effect in the sludge treatment process, and the sludge dehydration is low in pollution to the environment and is lower in manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of sludge treatment, in particular to a sludge dehydrating agent and a preparation method thereof. Background technique [0002] Sludge is the product of sewage treatment, which is an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids, etc. The main characteristics of sludge are high water content (up to 99%), high content of organic matter, easy to rot and smell, and the particles are finer, the specific gravity is smaller, and it is in a colloidal liquid state. It is a thick substance between liquid and solid, which can be transported by pump, but it is difficult to separate solid and liquid by sedimentation. [0003] In recent years, with the continuous development of urbanization, the discharge of sewage has continued to increase, and the output of sludge has also increased significantly. However, there has been a phenomenon of "heavy water an...

Claims

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Application Information

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IPC IPC(8): C02F11/148
CPCC02F11/148
Inventor 黄豹鲍会曹鑫
Owner 新疆水处理工程技术研究中心有限公司