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Compound phosphoric polyferric sulfate flocculant and production method thereof

A technology for compounding polyphosphorus sulfuric acid and polyphosphorus ferric sulfate is applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, phosphorus compounds, etc., to achieve the effects of improving the environment, mild reaction, and reducing costs

Active Publication Date: 2010-08-18
善水(南通)工业技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of single inorganic polymer flocculants in existing water treatment, especially the shortcomings of some single inorganic polymer flocculants in phosphorus removal and algae removal, the purpose of the present invention is to provide a kind of efficient turbidity removal and Harmful substances such as total phosphorus (TP) and chlorophyll (chl-a) in water can be effectively removed; Simultaneously, the component is simple, the cost is low, and the novel inorganic composite polymer polyphosphorus ferric sulfate flocculant that is convenient to use; Another aspect of the present invention The purpose is to provide a production process for producing the composite polyphosphorus ferric sulfate flocculant, which is simple, feasible and convenient to control

Method used

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Embodiment Construction

[0024] The present invention will be further described below in combination with specific embodiments.

[0025] The composition and weight percentage of polyphosphorus ferric sulfate flocculant are as follows:

[0026] raw material name

Recipe 1

Recipe 2

Recipe 3

Recipe 4

Ferrous Sulfate Heptahydrate

63％

69％

73.80％

79％

water

31.20％

21％

13.30％

5％

sodium chlorate

2.50％

3.50％

3.70％

3.90％

phosphoric acid

2.80％

5.80％

8.30％

10.90％

sodium hydroxide

0.50％

0.70％

0.90％

1.20％

[0027] The production process of polyphosphoric ferric sulfate flocculant, taking formula 3 as an example, illustrates the production process of the present invention, and can produce the polyphosphoric ferric sulfate flocculant that iron (calculated as Fe) content is 11.8%. Specific steps are as follows:

[0028] (1) Configure ferrous sulfate mixtu...

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Abstract

The invention provides a novel inorganic compound phosphoric polyferric sulfate flocculant and a production technology thereof. The flocculant can be used in both water treatment and sewage treatment thereby being multifunctional. The phosphoric polyferric sulfate of the invention takes the by-products generated in titanium pigment production, such as ferrous sulfate, phosphoric acid and the like for producing titanium pigment as raw materials thereby having the characteristics of utilization of waste products, simple components, low cost and the like. The production technology of the invention is convenient, has simple operation and can be carried out at normal temperature and normal pressure. In the production process, no liquid waste, waste gas and waste residue can be generated, and the production technology belongs to the cleaner production technology. The invention can be widely applied in water treatment and sewage treatment. Especially in water treatment, the phosphoric polyferric sulfate flocculant of the invention is added to effectively remove soluble phosphorus and phosphorus in other forms in water as well as algae in algae waste water, lower chemical oxygen demand (COD), total phosphorus (TP), suspended solid (SS), chlorophyll (chl-a) and the like.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to the technology of phosphorus removal and algae removal in water treatment. Background technique [0002] In water treatment, the coagulation (flocculation) process is a commonly used operating technology unit in water treatment, and flocculants play an important role in the solid-liquid separation of the feed water treatment process. Waterworks mostly use rivers, lakes, and reservoirs as water sources. However, with economic development and tourism development, water bodies have deteriorated, organic pollutants in water have increased, and harmful "algae blooms" have occurred frequently and the resulting algae toxin pollution has become serious. The biological nitrogen removal technology in the existing urban sewage and water supply treatment technology can generally meet the requirements of nitrogen removal indicators, but it is difficult to meet the requirements of phos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C01B25/37
Inventor 郑怀礼陈容焦世珺郑星尤艳飞余炳宏
Owner 善水(南通)工业技术有限公司
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