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Improved powdered activated carbon biological sewage denitrification and dephosphorization treatment device

The technology of a sewage treatment device and powdered activated carbon is applied in the field of improved sewage denitrification and phosphorus removal treatment device, which can solve problems such as cumbersome and achieve the effects of saving usage, efficient removal and reducing sludge amount

Active Publication Date: 2015-05-13
BEIJING WANBANGDA ENVIRONMENTAL PROTECTION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned processes are still somewhat cumbersome after all, and new simple and efficient processes and equipment need to be developed.

Method used

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  • Improved powdered activated carbon biological sewage denitrification and dephosphorization treatment device
  • Improved powdered activated carbon biological sewage denitrification and dephosphorization treatment device
  • Improved powdered activated carbon biological sewage denitrification and dephosphorization treatment device

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Embodiment 1

[0037] Such as figure 1 As shown, the device of the present invention includes the first anoxic tank, anaerobic tank, the first aerobic tank, the second anoxic tank, the second aerobic tank, the third anoxic tank, the third aerobic tank, and the flocculation tank and clarifiers. The first anoxic tank, the second anoxic tank and the third anoxic tank were added with activated carbon filler, and the dosages were 0.6g / L, 0.3g / L and 0.1g / L respectively. Stirring devices are arranged in the first anoxic pool, the second anoxic pool and the third anoxic pool. An aeration device is arranged in the first aerobic tank, the second aerobic tank and the third aerobic tank. There is no internal circulation between each aerobic pool and anoxic pool. The third aerobic tank includes a sludge return pipe connected to the first anoxic tank. The sewage is divided into three streams and enters the first anoxic pool, the second anoxic pool and the third anoxic pool respectively, and the distri...

Embodiment 2

[0039]The device of the present invention comprises a first anoxic tank, an anaerobic tank, a first aerobic tank, a second anoxic tank, a second aerobic tank, a third anoxic tank, a third aerobic tank, a flocculation tank and a clarification tank . The first anoxic tank and the second anoxic tank are dosed with activated carbon filler, and the dosing amount is 0.8g / L and 0.4g / L respectively. Stirring devices are arranged in the first anoxic pool, the second anoxic pool and the third anoxic pool. An aeration device is arranged in the first aerobic tank, the second aerobic tank and the third aerobic tank. There is no internal circulation between each aerobic pool and anoxic pool. The third aerobic tank also includes a sludge return pipe connected to the first anoxic tank. The sewage is divided into three streams and enters the first anoxic pool, the second anoxic pool and the third anoxic pool respectively, and the distribution coefficient is n1:n2=6:3:1. The volume ratio of...

Embodiment 3

[0041] The device of the present invention comprises a first anoxic tank, an anaerobic tank, a first aerobic tank, a second anoxic tank, a second aerobic tank, a third anoxic tank, a third aerobic tank, a flocculation tank and a clarification tank . Activated carbon filler is added to the first anoxic tank, and the dosage is 1.1 g / L. Stirring devices are arranged in the first anoxic pool, the second anoxic pool and the third anoxic pool. An aeration device is arranged in the first aerobic tank, the second aerobic tank and the third aerobic tank. There is no internal circulation between each aerobic pool and anoxic pool. The third aerobic tank also includes a sludge return pipe connected to the first anoxic tank. The sewage is divided into three streams and enters the first anoxic pool, the second anoxic pool and the third anoxic pool respectively, and the distribution coefficient is n1:n2:n3=7:2:1. The volume ratio of the first aerobic pool to the first anoxic pool is 2:1,...

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Abstract

The invention relates to an improved powdered activated carbon biological sewage denitrification and dephosphorization treatment device. The device comprises a first anoxic tank, an anaerobic tank, a first aerobic tank, a second anoxic tank, a second aerobic tank, a third anoxic tank, a third aerobic tank, a flocculating tank and a clarification tank, wherein activated carbon fillers are at least added to the first anoxic tank; the total dosage of the activated carbon fillers in the device is 0.5-3g / L. The device has the beneficial effects that by utilizing the designed structure, efficient purification of sewage can be achieved as long as the dosage of activated carbon is at most 50% (even only 10%) of the original dosage, thus effectively reducing the usage amount of activated carbon; besides, the device has the effects of effectively improving the removal effects of organic matters difficult to degrade and the poison shock resistance of a system, improving the decolorization effects and nitration reaction efficiency of the system, taking full advantage of carbon sources for sewage and simply achieving simultaneous and efficient removal of nitrogen and phosphorus in sewage.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to an improved sewage denitrification and phosphorus removal treatment device and a sewage treatment method thereof. Background technique [0002] Many cities in my country, especially in the south, have low COD in urban sewage, which makes it difficult to meet the carbon source demand for nitrogen and phosphorus removal, resulting in the discharge of nitrogen and phosphorus from many sewage plants not meeting the standards. In recent years, with the rise of separated drainage at home and abroad, lightly polluted gray water and heavily polluted black water are collected and treated separately, and biological nitrogen and phosphorus removal is also facing great difficulties. For this reason, the research and development of economical and efficient processes for enhancing the nitrogen and phosphorus removal capacity of low-carbon source sewage is of great significance for the better re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 单明军周昆仑寇丽红庄博弘
Owner BEIJING WANBANGDA ENVIRONMENTAL PROTECTION TECH