Composite powdery calcium sulphate sewage treating agent and preparation method thereof

A sewage treatment agent, calcium sulfate technology, applied in the direction of flocculation/sedimentation water/sewage treatment, sterilization/microdynamic water/sewage treatment, complex/solubilizer treatment, etc., can solve the problem of insufficient polymerization degree and complicated operation process , turbidity of the effluent, etc., to achieve the effects of excellent coagulation performance, low operating cost, and compact alum

Inactive Publication Date: 2009-06-17
WUHU KAIAOER ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the various and mixed types of water pollutants, and the main water treatment agents currently used have a single function, it is necessary to add flocculants, corrosion inhibitors, fungicides and other agents to the water treatment system, and the treatment process is complicated.
There are a lot of equipment, the operation process is complicated, the dosage of chemicals is large, the cost is high, and various reagents will resist each other through various chemical reactions, resulting in a decrease in drug efficacy. Among the flocculants currently used for sewage treatment, they are the most widely used PAC (polyaluminum chloride) generally has problems such as insufficient polymerization degree, weak flocculation an

Method used

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  • Composite powdery calcium sulphate sewage treating agent and preparation method thereof
  • Composite powdery calcium sulphate sewage treating agent and preparation method thereof
  • Composite powdery calcium sulphate sewage treating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1:

[0027] Mix 5 parts by weight of 80 mesh malic acid and 3 parts by weight of 80 mesh tartaric acid for 40 minutes, then add 60 parts by weight of 80 mesh calcium sulfate, mix for 50 minutes, add 10 parts by weight of 80 mesh magnesium carbonate, mix for 40 minutes, and add 10 80 parts by weight calcium carbonate was mixed for 40 minutes, then 10 parts by weight of 80 mesh ferric chloride were added, mixed for 40 minutes, and 10 parts by weight of 80 mesh calcium oxide were added for 40 minutes, and then 2 parts by weight of 80 mesh polyacrylamide were added. Mix for 120 minutes and it's ready.

Example Embodiment

[0028] Example 2:

[0029] Mix 7 parts by weight of 200 mesh malic acid and 4 parts by weight of 200 mesh tartaric acid for 50 minutes, then add 65 parts by weight of 200 mesh calcium sulfate, mix for 90 minutes, add 12 parts by weight of 200 mesh magnesium carbonate, mix for 50 minutes, and add 15 200 parts by weight calcium carbonate was mixed for 50 minutes, then 15 parts by weight of 200 mesh ferric chloride were added, mixed for 50 minutes, 15 parts by weight of 200 mesh calcium oxide were added, and mixed for 50 minutes, and 2.5 parts by weight of 200 mesh polyacrylamide were added. Mix for 130 minutes, and that's it.

Example Embodiment

[0030] Example 3:

[0031] Mix 10 parts by weight of 400 mesh malic acid and 5 parts by weight of 400 mesh tartaric acid for 60 minutes, then add 70 parts by weight of 400 mesh calcium sulfate, mix for 120 minutes, then add 15 parts by weight of 400 mesh magnesium carbonate, mix for 60 minutes, and add 20 40 parts by weight of 400 mesh calcium carbonate were mixed for 60 minutes, then 20 parts by weight of 400 mesh ferric chloride were added, mixed for 60 minutes, and 20 parts by weight of 400 mesh calcium oxide were added for 60 minutes, and then 3 parts by weight of 400 mesh polyacrylamide were added. Mix for 150 minutes and it's ready.

[0032] The technical indicators of Examples 1-3 are shown in Table 1:

[0033] Table 1:

[0034] Example 1 Example 2 Example 3 Density g / cm 3 (20℃) 1.20 1.25 1.30 Solid content (weight)% 90 91 92 Reducing substances (with Fe 2+ Count)

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Abstract

The invention discloses a composite powered calcium sulfate sewage treatment agent and a method for preparing the same. The sewage treatment agent comprises the following materials in weight portion: 5 to 10 portions of tartaric acid, 3 to 5 portions of malic acid, 60 to 70 portions of calcium sulfate, 10 to 15 portions of magnesium carbonate, 10 to 20 positions of calcium carbonate, 10 to 20 portions of ferric chloride, 10 to 20 portions of calcium oxide and 2 to 3 portions of polyacrylamide. The method is to mix the materials. Compared with the prior art, the sewage treatment agent and the method have the advantages of multifunction, high efficiency, environment protection, quick sewage treatment speed, short treatment time, broad-spectrum and high-efficiency removal of various pollutants and harmful substances and strong adaptively to the sewage muddiness, wide pH value range and wide water temperature change of the sewage. The sewage treatment agent and the method have high alkalization degree, small corrosion, convenient production and no pollution in the production process, simple product package, convenient transportation and low composite cost.

Description

technical field [0001] The invention belongs to a sewage treatment agent and a preparation method thereof, in particular to a composite powdery calcium sulfate sewage treatment agent and a preparation method thereof. Background technique [0002] At present, the main treatment method for water pollution is chemical treatment, that is, water pollutants are treated by adding drugs. Due to the various and mixed types of water pollutants, and the main water treatment agents currently used have single functions, it is necessary to add flocculants, corrosion inhibitors, fungicides and other agents to the water treatment system, and the treatment process is complicated. There are a lot of equipment, the operation process is complicated, the dosage of chemicals is large, the cost is high, and various reagents will resist each other through various chemical reactions, resulting in a decrease in drug efficacy. Among the flocculants currently used for sewage treatment, they are the mos...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/50C02F5/08
Inventor 章云
Owner WUHU KAIAOER ENVIRONMENTAL PROTECTION TECH
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