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Composite phosphorus removing agent and use method thereof

A compound dephosphorization agent and dephosphorization agent technology, which is applied in the field of water treatment, can solve the problems of reduced production capacity and achieve cost saving, ideal phosphorus removal effect and ideal precipitation effect

Inactive Publication Date: 2019-02-01
四川山水源环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of common phosphorus removal agents is mostly obtained by heating and reacting ore and waste acid, and the resulting environmental problems cannot be directly avoided. In today's increasingly stringent environmental protection, production capacity is bound to decrease, and the use of environmentally friendly raw materials with less pollution It will also be imperative to carry out product production

Method used

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  • Composite phosphorus removing agent and use method thereof
  • Composite phosphorus removing agent and use method thereof
  • Composite phosphorus removing agent and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A compound dephosphorization agent for treating sewage with a total phosphorus concentration of 5-10 mg / L, such as municipal sewage or industrial sewage. The compound dephosphorization agent includes the following raw materials in proportions by weight: 15 parts of aluminum salt, 60 parts of ferrous salt, 2 parts of polyferric sulfate, 2 parts of sodium silicate, 0.2 parts of polyacrylamide, 3 parts of carbon source supplement.

[0027] The water solvent of the composite dephosphorization agent is that the aluminum salt, ferrous salt, polyferric sulfate, sodium silicate, polyacrylamide and carbon source supplement are mixed and added to 166.9 parts of pure water to form a composite solution with a concentration of 33%. The solvent of the dephosphorization agent can be used to obtain the liquid dephosphorization agent from Shanshui.

[0028] The aluminum salt is aluminum sulfate, the ferrous salt is ferrous sulfate, and the carbon source supplement is sodium acetate.

...

Embodiment 2

[0035] A compound dephosphorization agent for treating sewage with a total phosphorus concentration of 5-10 mg / L, such as municipal sewage or industrial sewage. The compound dephosphorization agent includes the following raw materials in proportions by weight: 15 parts of aluminum salt, 60 parts of ferrous salt, 2 parts of polyferric sulfate, 2 parts of sodium silicate, 0.2 parts of polyacrylamide, 3 parts of carbon source supplement.

[0036] The water solvent of the composite phosphorus removal agent is that the aluminum salt, ferrous salt, polyferric sulfate, sodium silicate, polyacrylamide and carbon source supplement are mixed and added to 123.3 parts of pure water to form a composite solution with a concentration of 40%. The solvent of the dephosphorization agent can be used to obtain the liquid dephosphorization agent from Shanshui.

[0037] The aluminum salt is aluminum sulfate, the ferrous salt is ferrous sulfate, and the carbon source supplement is sodium acetate.

...

Embodiment 3

[0044] A compound dephosphorization agent for treating sewage with a total phosphorus concentration of 5-10 mg / L, such as municipal sewage or industrial sewage. The compound dephosphorization agent includes the following raw materials in proportions by weight: 30 parts of aluminum salt, 70 parts of ferrous salt, 3 parts of polyferric sulfate, 3 parts of sodium silicate, 0.5 parts of polyacrylamide, 10 parts of carbon source supplement.

[0045] The water solvent of the composite phosphorus removal agent is that the aluminum salt, ferrous salt, polyferric sulfate, sodium silicate, polyacrylamide and carbon source supplement are mixed and added to 236.5 parts of pure water to form a composite solution with a concentration of 33%. The solvent of the dephosphorization agent can be used to obtain the liquid dephosphorization agent from Shanshui.

[0046] The aluminum salt is aluminum sulfate, the ferrous salt is ferrous sulfate, and the carbon source supplement is sodium acetate. ...

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Abstract

The invention discloses a composite phosphorus removing agent and a use method thereof, wherein the composite phosphorus removing agent is used for treating municipal sewage with high total phosphorusconcentration, the total phosphorus concentration is 5-10 mg / L, and the composite phosphorus removing agent comprises the following raw materials by weight: 75-100 parts of a component A, 4.2-9.5 parts of a component B, and 3-10 parts of a component C, the component A is 15-30 parts of an aluminum salt and 60-70 parts of an iron salt, the component B is a basic flocculant and a granular flocculant, the component C is a carbon source supplementing agent, the basic flocculant is 2-3 parts of polyferric sulfate, and the granular flocculant is 2-3 parts of sodium silicate and 0.2-0.5 part of polyacrylamide. According to the present invention, the used raw materials of the phosphorus removing agent are the common water treatment agents, and are compounded, such that the phosphorus removal rateis fast, and the phosphorus removal rate can reach more than 95%, or even 100%; the process is simple, and the production cost is low; and compared with other phosphorus removing agents, the phosphorus removing agent of the present invention has the following characteristics that the whole phosphorus removing process is more than twice as fast as the similar products while microorganisms are notadversely affected.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a composite dephosphorization agent and a use method thereof. Background technique [0002] Phosphorus is an indispensable and important element for organisms. The metabolic process of organisms requires the participation of phosphorus. Total phosphorus is the main indicator reflecting the eutrophication of water bodies. Generally, the content of total phosphorus in natural water is not high, and the chemical fertilizer, metallurgy, synthetic detergent and other industries Industrial wastewater and domestic sewage often contain a large amount of phosphorus. When the phosphorus content in the water body is too high, it can cause excessive algae reproduction until the number reaches a harmful level. This situation can be called eutrophication, which will cause lakes, rivers, etc. The transparency of the water body decreases and the water quality deteriorates. [0003] Urban sewage a...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/10
CPCC02F1/5236C02F1/56C02F3/28C02F9/00C02F2001/007C02F2101/105
Inventor 许维余练
Owner 四川山水源环保技术有限公司
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