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Phosphorus removal agent for wastewater treatment

A wastewater treatment and dephosphorization agent technology, applied in the field of water treatment, can solve the problems of strong acidity, corrosion of carbon steel pipes and equipment, etc., and achieve the effects of cost saving, no visible impurities, and transparent products

Inactive Publication Date: 2021-12-17
西安吉利电子新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a phosphorus removal agent for wastewater treatment to solve the problem that existing phosphorus removal products are highly acidic and cause corrosion to carbon steel pipes and equipment

Method used

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  • Phosphorus removal agent for wastewater treatment
  • Phosphorus removal agent for wastewater treatment
  • Phosphorus removal agent for wastewater treatment

Examples

Experimental program
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preparation example Construction

[0018] The present invention also provides a kind of preparation method for the dephosphorization agent of wastewater treatment, comprising the following contents:

[0019] Weigh raw materials according to the following mass content, wherein 10-35% of bauxite, 10-25% of calcium aluminate, 20-40% of hydrochloric acid and hydrochloric acid, the balance is water, and the total mass content is 100%;

[0020] First add the bauxite to the reactor, then add water to stir the bauxite evenly;

[0021] Raise the temperature of the reactor to 90-98°C, then slowly add the hydrochloric acid dropwise, and stir for 100-150min;

[0022] After mixing evenly, add the calcium aluminate and stir for 30 minutes to make it react completely;

[0023] After reducing the temperature of the reactor to 45-70°C and maintaining it for 12-36 hours, filter out the solid impurities and the remaining liquid is the finished high-efficiency phosphorus removal agent.

Embodiment

[0025] According to the ratio of each raw material provided in the following table 1 respectively as the raw material ratio of Examples 1 to 6, then according to the process parameters provided in the following table 1, according to the preparation of a phosphorus removal agent for wastewater treatment according to the present invention Method, finish the finished product preparation of embodiment 1~6.

[0026] Table 1

[0027]

[0028]

[0029] The above six embodiments are then tested for finished product performance, and the pH value and basicity obtained are shown in Table 2 below.

[0030] Table 2

[0031]

[0032] From the comparison of the data in Table 2, it can be seen that the basicity of a phosphorus removal agent for wastewater treatment prepared according to the raw material ratio of Example 6 is the largest, the pH (1% aqueous solution) is relatively small, and the effect is the best.

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Abstract

The invention discloses a phosphorus removal agent for wastewater treatment, which is prepared from the following raw materials in percentage by mass: 10-35% of bauxite, 10-25% of calcium aluminate, 20-40% of hydrochloric acid and the balance of water, and the total mass content is 100%. The problem that an existing phosphorus removal product is high in acidity and can cause corrosion to carbon steel pipelines and equipment is solved.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a phosphorus removal agent for wastewater treatment. Background technique [0002] Phosphorus in wastewater treatment exists in the form of orthophosphate, hypophosphite, phosphite and organic phosphorus. For different phosphorus, different treatment methods should be selected. Conventional phosphorus removal agents mainly remove inorganic orthophosphorus, phosphite removers remove chemical nickel wastewater, phosphorus removal agents remove chemical nickel, and organic phosphorus in wastewater are mainly removed by biological phosphorus removal bacteria. For difficult-to-treat phosphorus-containing wastewater, the combination of "biology + oxidation + phosphorus removal agent" can be considered. In the existing chemical agent treatment methods, the agents are mainly three types of aluminum salts (aluminum sulfate, aluminum chloride, etc.), iron salts (ferri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/58
CPCC02F1/58
Inventor 张凯元刚
Owner 西安吉利电子新材料股份有限公司
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