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River way water purification and water resource supply system as well as working method thereof

A working method and water purification technology, applied in the field of water pollution control, can solve the problems of unstable treatment effect, high mud production, large dosage of medicine, etc., and achieve the effects of stable treatment effect, high quality of effluent, and low dosage of medicine

Inactive Publication Date: 2012-10-17
NANJING SONGBEN WATER TREATMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is too cumbersome to be used for water supply in industries with large volumes of water such as textile printing and dyeing and papermaking.
In addition, the agents used in the flocculation stage are ordinary aluminum salts or iron salts. The dosage is large, the mud is produced more, and the treatment effect is unstable.
The quality of the effluent from the filter tank is not high enough to be directly used for production water

Method used

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  • River way water purification and water resource supply system as well as working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Coagulation reaction unit

[0023] The river water is lifted to the first coagulation tank through the lifting pump, and at the same time, 2-5mg / L composite natural inorganic polymer water purifier is added by dry powder dosing method. The water purifier is mainly composed of polyaluminum chloride compounded with micron-sized natural ore powder, and compounded with 5% diatomaceous earth and 10-15% polyferric sulfate. The dry powder dosing method is used for coagulation at this stage. The coagulation stirring speed is required to reach 120-150 rpm. Stage stay 30-60s;

[0024] Self-flow into the second coagulation tank for coagulation, where secondary coagulation is carried out. Generally, there is no need to add high-efficiency coagulation composite water purifier at this stage. According to actual conditions, an appropriate amount of high-efficiency coagulation composite water purifier can also be added at this time. Water agent, while controlling the stirring spe...

Embodiment 2

[0046] (1) Coagulation reaction unit

[0047] The river water is lifted to the first coagulation tank through the lifting pump, and at the same time, 2-5mg / L composite natural inorganic polymer water purifying agent is added by dry powder dosing method. Coagulation is carried out at this stage, and the coagulation stirring speed is required to reach 130 rpm min, stay at this stage for 45s;

[0048] Self-flow into the second coagulation tank for coagulation, and then carry out secondary coagulation. Generally, it is not necessary to add high-efficiency coagulation composite water purifier at this stage. According to actual conditions, an appropriate amount of high-efficiency coagulation composite water purifier can also be added at this time. Water agent, while performing secondary discharge. Control the stirring speed at 90 rpm, and the residence time here is 90s to form large flocs;

[0049]The high-efficiency coagulation compound water purifier is a natural inorganic poly...

Embodiment 3

[0070] (1) Coagulation reaction unit

[0071] The river water is lifted to the first coagulation tank through the lifting pump, and at the same time, 2-5 mg / L composite natural inorganic polymer water purifying agent is added by dry powder dosing method. Coagulation is carried out at this stage, and the coagulation stirring speed is required to reach 140 rpm min, stay at this stage for 60s;

[0072] Self-flow into the second coagulation tank for coagulation, and then carry out secondary coagulation. Generally, it is not necessary to add high-efficiency coagulation composite water purifier at this stage. According to actual conditions, an appropriate amount of high-efficiency coagulation composite water purifier can also be added at this time. Water agent, while performing secondary discharge. Control the stirring speed at 100 rpm, and the residence time here is 120s to form large flocs;

[0073] The high-efficiency coagulation compound water purifier is a natural inorganic ...

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Abstract

The invention discloses a river way water purification and water resource supply system as well as a working method of the system. The river way water purification and water resource supply system comprises a coagulation unit, a sedimentation basin, a sand filtering basin, an ultra filtering basin, a disinfecting basin and a water storing basin. The working method comprises the following steps that: river water flows through a diversion canal and lifted to a first coagulation reaction basin through a lifting pump; and meanwhile, a proper amount of an efficient coagulation composite purifier is added in a dry powder adding manner, and coagulation is carried out in the stage, so that the river water automatically flows into a second coagulation precipitation tank to carry out secondary coagulation to form a large flocculating constituent. After the flocculating constituent is formed, the flocculating constituent automatically flows into the inclined tube sedimentation basin to be settled, and then is discharged to the sand filtering basin. An ultra-filtering process section is added on the follow-up process; the ultra-filtered water is discharged to the disinfecting basin and is disinfected through liquid chlorine; the disinfected treated water enters the water storing basin and is used as water for a production process. With the adoption of the river way water purification and water resource supply system as well as the working method provided by the invention, the river way water is purified and meets a water recycling requirement, and can be directly supplied as a water resource, so that the energy conversion and the emission reduction of water major clients in the paper making industry, a textile printing industry and the like can be realized.

Description

technical field [0001] The invention relates to the technical field of water pollution control, in particular to the improvement of equipment and processes for river water purification and water resource supply systems. Background technique [0002] Because the river water contains some biochemical substances, it is difficult to deal with this type of wastewater by general wastewater treatment methods. A Chinese patent discloses a wastewater treatment system (publication number CN 201581023U), which includes the following steps: including a self-river water lift pump, connected to a flocculation reaction tank through a pipeline, a flap plate is arranged inside the flocculation reaction tank, and the flocculation reaction tank passes through the pipe The road is connected with an inclined tube sedimentation tank, and the bottom of the inclined tube sedimentation tank is equipped with a sedimentation area. The flocculation reaction tank and the bottom of the sedimentation area...

Claims

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Application Information

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IPC IPC(8): C02F9/04
Inventor 周浩男
Owner NANJING SONGBEN WATER TREATMENT TECH
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