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Composition for treating sewage and preparation method thereof

A technology of composition and sewage, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., to achieve the effect of easy large-scale preparation, suitable for promotion, reduction of COD value and total nitrogen content

Inactive Publication Date: 2016-08-17
陈斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Purifying sewage and completing the regeneration and utilization of water resources is one of the effective ways to solve the shortage of water resources in our country.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: the preparation of composition

[0020] Raw material weight ratio:

[0021] Heavy calcium carbonate, 30 parts; Light calcium carbonate, 10 parts; Bentonite, 20 parts; Wollastonite, 10 parts; Borax, 15 parts; Yuanming powder, 10 parts; Zeolite powder, 10 parts; Barite powder, 15 parts; diatomaceous earth powder, 40 parts; the mixture of barium sulfate powder and chitosan, 5 parts; the weight ratio of described barium sulfate powder and chitosan is 4:1.

[0022] Preparation:

[0023] Step S1, grinding the dried heavy calcium carbonate, light calcium carbonate, wollastonite, sodium sulfate and barite powder together, with a fineness of 0.07-0.08mm;

[0024] Step S2, grinding the dried bentonite, borax, zeolite powder and diatomaceous earth powder together to a fineness of 0.05-0.07mm;

[0025] Step S3, grinding the dried barium sulfate powder and chitosan together to a fineness of 0.04-0.06mm;

[0026] In step S4, the fine powders ground in steps S1, S2, ...

Embodiment 2

[0028] Embodiment 2: the preparation of composition

[0029] Raw material weight ratio:

[0030] Heavy calcium carbonate, 25 parts; Light calcium carbonate, 5 parts; Bentonite, 15 parts; Wollastonite, 5 parts; Borax, 10 parts; Yuanming powder, 5 parts; Zeolite powder, 5 parts; Barite powder, 10 parts; diatomite powder, 35 parts; the mixture of barium sulfate powder and chitosan, 4 parts; the weight ratio of described barium sulfate powder and chitosan is 3:1.

[0031] Preparation:

[0032] Step S1, grinding the dried heavy calcium carbonate, light calcium carbonate, wollastonite, sodium sulfate and barite powder together, with a fineness of 0.07-0.08mm;

[0033] Step S2, grinding the dried bentonite, borax, zeolite powder and diatomaceous earth powder together to a fineness of 0.05-0.07mm;

[0034] Step S3, grinding the dried barium sulfate powder and chitosan together to a fineness of 0.04-0.06mm;

[0035] In step S4, the fine powders ground in steps S1, S2, and S3 are ev...

Embodiment 3

[0037] Embodiment 3: the preparation of composition

[0038] Raw material weight ratio:

[0039] Heavy calcium carbonate, 35 parts; Light calcium carbonate, 15 parts; Bentonite, 25 parts; Wollastonite, 15 parts; Borax, 20 parts; Yuanming powder, 15 parts; Zeolite powder, 15 parts; Barite powder, 20 parts; diatomaceous earth powder, 45 parts; the mixture of barium sulfate powder and chitosan, 6 parts; the weight ratio of described barium sulfate powder and chitosan is 5:1.

[0040] Preparation:

[0041] Step S1, grinding the dried heavy calcium carbonate, light calcium carbonate, wollastonite, sodium sulfate and barite powder together, with a fineness of 0.07-0.08mm;

[0042] Step S2, grinding the dried bentonite, borax, zeolite powder and diatomaceous earth powder together to a fineness of 0.05-0.07mm;

[0043] Step S3, grinding the dried barium sulfate powder and chitosan together to a fineness of 0.04-0.06mm;

[0044] In step S4, the fine powders ground in steps S1, S2, ...

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Abstract

The invention discloses a composition for treating sewage and a preparation method thereof, belonging to the field of sewage treatment. The composition is prepared from the following raw materials in parts by weight: 25-35 parts of ground calcium carbonate, 5-15 parts of light calcium carbonate, 15-25 parts of bentonite, 5-15 parts of wollastonite, 10-20 parts of sodium borate, 5-15 parts of glauber salt, 5-15 parts of zeolite powder, 10-20 parts of barite powder, 35-45 parts of diatomite powder and 4-6 parts of barium sulfate powder-chitosan mixture. The weight ratio of the barium sulfate powder to the chitosan is (3-5):1. The composition disclosed by the invention can efficiently treat sewage, and the COD (chemical oxygen demand) value and total nitrogen content in the sewage are obviously lowered. The method for preparing the sewage treatment accelerator is simple and practical, can easily implement large-scale preparation, and is suitable for popularization.

Description

technical field [0001] The invention belongs to the field of environmental protection and relates to sewage treatment, in particular to a composition for sewage treatment and a preparation method thereof. Background technique [0002] The total amount of water resources in my country ranks sixth in the world, and the per capita water volume ranks 84th in the world. The time distribution of water resources is uneven, and the spatial distribution is uneven. Many areas are in short supply of water resources. After the reform and opening up, my country's economy has continued to develop at a high speed, and the urbanization process has continued to accelerate. This development and growth rate have expanded the demand for water resources on the one hand, and on the other hand have also produced a large amount of industrial and domestic sewage. According to reports in 2000 my country's sewage discharge amounted to nearly 50 billion tons. Purifying sewage and completing the regene...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5236C02F1/5263C02F1/56
Inventor 陈斌
Owner 陈斌
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