Oxidant for municipal wastewater treatment and preparation method of oxidant

A technology of urban sewage and manufacturing method, which is applied in water/sewage treatment, adsorbed water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of complex preparation process, difficulty in ensuring oxidation effect, short shelf life, etc. Simple, easy-to-control, long-lasting effects

Inactive Publication Date: 2018-05-29
ANHUI RUIZHIXIN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oxidants need to be used in sewage treatment. Traditional oxidants are in the form of powder, have a short shelf life, complex preparation process, and it is difficult to guarantee the oxidation effect, which has certain limitations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An oxidizing agent for urban sewage treatment, its raw materials are as follows by weight: 2 parts of polyaluminum chloride, 4 parts of calcium oxide, 8 parts of iron-free aluminum sulfate powder, 3 parts of ferric sulfate, 4 parts of ferric chloride, 50 parts of bentonite, 2 parts of activated carbon, 20 parts of distilled water.

[0021] A method for producing an oxidant for urban sewage treatment, comprising the steps of:

[0022] S1: Weigh polyaluminum chloride, calcium oxide, iron-free aluminum sulfate powder, ferric sulfate, ferric chloride, bentonite, activated carbon and distilled water in proportion for later use;

[0023] S2: Add the polyaluminum chloride, calcium oxide, iron-free aluminum sulfate powder, ferric sulfate, ferric chloride, activated carbon and bentonite obtained in step S1 to the mixing equipment for pre-mixing, and control the mixing temperature between 40-50 degrees Celsius During the mixing time, control the mixing time between 0.5h-0.6h, an...

Embodiment 2

[0032] An oxidizing agent for urban sewage treatment, its raw materials are as follows by weight: 3 parts of polyaluminum chloride, 6 parts of calcium oxide, 9 parts of iron-free aluminum sulfate powder, 4 parts of ferric sulfate, 5 parts of ferric chloride, 60 parts of bentonite, 3 parts of activated carbon, 22 parts of distilled water.

[0033] A method for producing an oxidant for urban sewage treatment, comprising the steps of:

[0034] S1: Weigh polyaluminum chloride, calcium oxide, iron-free aluminum sulfate powder, ferric sulfate, ferric chloride, bentonite, activated carbon and distilled water in proportion for later use;

[0035] S2: Add the polyaluminum chloride, calcium oxide, iron-free aluminum sulfate powder, ferric sulfate, ferric chloride, activated carbon and bentonite obtained in step S1 to the mixing equipment for pre-mixing, and control the mixing temperature between 40-50 degrees Celsius During the mixing time, control the mixing time between 0.5h-0.6h, an...

Embodiment 3

[0044] An oxidizing agent for urban sewage treatment, its raw materials are as follows by weight: 4 parts of polyaluminum chloride, 8 parts of calcium oxide, 10 parts of iron-free aluminum sulfate powder, 5 parts of ferric sulfate, 6 parts of ferric chloride, 70 parts of bentonite, 4 parts of activated carbon, 24 parts of distilled water.

[0045] A method for producing an oxidant for urban sewage treatment, comprising the steps of:

[0046] S1: Weigh polyaluminum chloride, calcium oxide, iron-free aluminum sulfate powder, ferric sulfate, ferric chloride, bentonite, activated carbon and distilled water in proportion for later use;

[0047] S2: Add the polyaluminum chloride, calcium oxide, iron-free aluminum sulfate powder, ferric sulfate, ferric chloride, activated carbon and bentonite obtained in step S1 to the mixing equipment for pre-mixing, and control the mixing temperature between 40-50 degrees Celsius During the mixing time, control the mixing time between 0.5h-0.6h, a...

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PUM

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Abstract

The invention discloses an oxidant for municipal wastewater treatment. The oxidant comprises raw materials in parts by weight as follows: 2-4 parts of polyaluminum chloride, 4-8 parts of calcium oxide, 8-10 parts of iron-free aluminum sulfate powder, 3-5 parts of iron sulfate, 4-6 parts of ferric chloride, 50-70 parts of bentonite, 2-4 parts of activated carbon and 20-24 parts of distilled water.Proportion of the components is controlled strictly, formula of the traditional oxidant is changed, the bentonite is widely sourced, the activated carbo component is added, and the oxidant has certainadsorption and purification effects; the finished oxidant is granular, convenient to store and long in shelf life; the preparation process is simple, the oxidation effect is good, water-batch heatingis adopted, water temperature is controlled easily, temperature environment for preparation is guaranteed, performance of the oxidant is more stable, tumbling is performed by a drum type stirrer, granules with higher density are effectively prevented from settling down to the lower layer, and mixing quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an oxidant for urban sewage treatment and a manufacturing method thereof. Background technique [0002] my country is a country seriously short of fresh water resources. With the rapid economic development and the further acceleration of urbanization since the reform and opening up, the contradiction between supply and demand of urban water resources has become more prominent. Among the nearly 700 cities in my country, more than 400 are short of water, and nearly 100 of them are seriously short of water. In order to solve the contradiction of water resource shortage, it is necessary to adopt a sustainable water resource utilization mode—conservation mode. In addition to promoting water conservation and opening up new water sources, the recycling of sewage and wastewater is also an important way. Domestic sewage is used as a water source, and after proper treatment, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F1/28
CPCC02F1/281C02F1/283C02F1/72
Inventor 闫毛钦李夫王晓全
Owner ANHUI RUIZHIXIN INFORMATION TECH CO LTD
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