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Dephosphorization system and method

A reaction tank and wastewater technology, applied in chemical instruments and methods, water treatment parameter control, water/sludge/sewage treatment, etc. Effect

Pending Publication Date: 2019-07-30
南京华创环境技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect that the final discharged water still does not meet the discharge stan

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  • Dephosphorization system and method

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Embodiment 1

[0041] Such as figure 1 As shown, this embodiment provides a phosphorus removal system, including a reaction tank 2, a first phosphorus removal device, a drainage tank 4, and a second phosphorus removal device.

[0042]In this embodiment, the reaction pool 2 is used to carry waste water to be treated; the first dephosphorization device is used to remove phosphorus from the waste water in the reaction pool 2; the drainage pool 4 is connected to the reaction pool 2 The second phosphorus removal device is connected with the drainage pool 4, and is used to carry out secondary phosphorus removal to the wastewater that does not meet the discharge standard after the detection, or after the primary phosphorus removal, or will detect the waste water that does not meet the discharge standard after the detection. The dephosphorized wastewater is sent back to the first dephosphorization device for secondary dephosphorization until it meets the discharge standard.

[0043] In this embodim...

Embodiment 2

[0063] The present embodiment provides a kind of phosphorus removal method, comprises the steps:

[0064] Firstly, the pH value of the wastewater is detected. If the pH value of the wastewater meets the requirements, the subsequent steps are carried out. If the pH value does not meet the requirements, the pH value of the wastewater is adjusted by adding acid. Then detect the phosphorus content of the wastewater to be treated whose pH value meets the requirements; put a corresponding amount of phosphorus removal agent into the wastewater according to the phosphorus content; carry out precipitation and separation of the mixed liquid after the reaction; detect the content of the supernatant after the precipitation and separation Phosphorus amount. If the test result meets the discharge standard, the water after primary phosphorus removal will be discharged directly; if the test result does not meet the discharge standard, the wastewater after primary phosphorus removal will be su...

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Abstract

The invention relates to the technical field of waste water treatment, in particular to a dephosphorization system and method. The dephosphorization system comprises a reaction pond used for carryingto-be-treated waste water, a first dephosphorization device used for conducting primary dephosphorization on the waste water in the reaction pond, a water discharging pond connected with the reactionpond, and at least one second dephosphorization device connected with the water discharging pond and used for conducting secondary dephosphorization on the waste water which does not meet the discharging standard after detection and is subjected to the primary dephosphorization, or conveying the waste water which does not meet the discharging standard after detection and is subjected to the primary dephosphorization back to the first dephosphorization device for secondary dephosphorization until the discharging standard is met. The dephosphorization system can make the finally-discharged watermeet the standard.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a phosphorus removal system and a phosphorus removal method. Background technique [0002] With the rapid development of phosphating industry, the environmental pollution is becoming more and more serious. Phosphorus-containing wastewater is one of the main causes of water eutrophication, and it is of great significance to control the excessive discharge of phosphorus-containing wastewater. [0003] Phosphorus removal technologies mainly include biological phosphorus removal, ecological phosphorus removal and chemical phosphorus removal. The treatment effect of biological phosphorus removal is limited, and ecological phosphorus removal needs to occupy a large area of ​​land resources. Chemical phosphorus removal is widely used because of its high phosphorus removal efficiency. Chemical phosphorus removal is to add chemicals to sewage, react with phosphorus to form i...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F9/00C02F2001/007C02F1/66C02F1/58C02F2209/06
Inventor 李杰唐美张鹏梁英刘福强李爱民
Owner 南京华创环境技术研究院有限公司