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Application of efficient dephosphorization agent in wastewater treatment

A high-efficiency dephosphorization agent and wastewater treatment technology, applied in the field of water treatment, can solve the problems of ineffective water treatment chemicals, negative impact on water quality, high treatment cost, etc., to reduce the amount of sludge produced and the difficulty of treatment, and reduce the raw water Influence of water quality, effect of chemical stability

Active Publication Date: 2011-10-05
YIXING HEDA WATER SOLUTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The country has specified a series of measures and regulations for the treatment of blue-green algae in Taihu Lake, and clearly stipulated the discharge index of phosphorus for the urban sewage treatment along the Taihu Lake, which poses a great challenge to the traditional biological treatment process; the biochemical treatment process quickly adapted to the requirements. However, the effect of traditional water treatment chemicals is not obvious, the dosage is large, the treatment cost is high, and it has a negative impact on water quality

Method used

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  • Application of efficient dephosphorization agent in wastewater treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 22.5% of aluminum sulfate, 27.5% of iron sulfate, 17.5% of sodium hypochlorite, and 32.5% of water.

[0032] Add tap water to the reaction kettle according to the formula, turn on electric stirring, heat to 40°C, add solid aluminum sulfate and ferric sulfate, stir and dissolve completely, add sodium hypochlorite in several times to carry out polymerization reaction, after 4 hours of reaction, then heat up to 80°C Stable aging for 12 hours, filtered with 400-mesh polyester cloth to obtain a transparent liquid product.

Embodiment 2

[0034] Take 30% of aluminum sulfate, 20% of iron sulfate, 15% of sodium hypochlorite, and 35% of water.

[0035] Add tap water to the reaction kettle according to the formula, turn on electric stirring, heat to 45°C, add solid aluminum sulfate and ferric sulfate, stir to dissolve completely, add sodium hypochlorite in several times to carry out polymerization reaction, react for 4 hours, and then heat up to 85°C Stable aging for 12 hours, filtered with 400-mesh polyester cloth to obtain a transparent liquid product. The liquid product is dried by a dryer and crushed to obtain a solid granular high-efficiency dephosphorization agent. Dosing point during wastewater treatment: the outlet of the aeration tank; dosing method: first dilute to 20% concentration of diluent, so that the agent is evenly dispersed, fully reacted with water, stirred evenly and then added to the wastewater.

[0036] Dosage (mg / L)

Embodiment 3

[0038] Take 25% of aluminum sulfate, 25% of iron sulfate, 17.5% of sodium hypochlorite, and 32.5% of water.

[0039] Add tap water to the reaction kettle according to the formula, turn on electric stirring, heat to 50°C, add solid aluminum sulfate and iron sulfate, stir and dissolve completely, add sodium hypochlorite in several times to carry out polymerization reaction, after reacting for 6 hours, then heat up to 85°C Steady aging for 8 hours, filtered with 400-mesh polyester cloth to obtain a transparent liquid product. Dosing point during wastewater treatment: the outlet of the aeration tank; dosing method: first dilute to 20% concentration of diluent, so that the agent is evenly dispersed, fully reacted with water, stirred evenly and then added to the wastewater.

[0040] Dosage (mg / L)

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Abstract

The invention discloses application of an efficient dephosphorization agent in wastewater treatment. The efficient dephosphorization agent is prepared from the following components by weight percent: 20-30% of aluminum sulfate, 20-30% of ferric sulfate, 10-20% of sodium hypochlorite and 30-40% of water. According to the invention, municipal sewage and industrial sewage are treated by using the efficient dephosphorization agent, and the phosphorus-removing effect is above three times more than that of the traditional water treatment chemicals; the efficient dephosphorization agent has obvious auxiliary effects in the aspects of sterilization, deodorization and water removal from foam, float mud and filthy mud; a good technical support is provided for filthy mud reduction in production operation; and good environment effects are obtained.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to the application of a high-efficiency dephosphorization agent in wastewater treatment. Background technique [0002] Because the development of social economy has caused great damage to the natural environment, global warming, the outbreak of blue-green algae in Taihu Lake, and the rational use and development of water resources have become urgent problems for the sustainable development of the environment today. [0003] The state has specified a series of measures and regulations for the treatment of blue-green algae in Taihu Lake, and clearly stipulated the discharge index of phosphorus for the urban sewage treatment along the Taihu Lake, which poses a great challenge to the traditional biological treatment process; the biochemical treatment process quickly adapted to the requirements, However, traditional water treatment chemicals have no obvious effect, large dosage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 邹鹏曹正平张彪
Owner YIXING HEDA WATER SOLUTION
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