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Filter tank backwashing wastewater treatment device based on dynamic membrane and use method of filter tank backwashing wastewater treatment device

A wastewater treatment and dynamic membrane technology, which is applied in filtration treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problem of difficult to remove N, P and organic matter in wastewater, and achieve the effect of energy saving and removal

Pending Publication Date: 2021-08-24
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that it is difficult to remove N, P and organic matter in wastewater in the prior art, the present invention provides a filter backwash wastewater treatment device based on dynamic membrane and its use method

Method used

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  • Filter tank backwashing wastewater treatment device based on dynamic membrane and use method of filter tank backwashing wastewater treatment device
  • Filter tank backwashing wastewater treatment device based on dynamic membrane and use method of filter tank backwashing wastewater treatment device
  • Filter tank backwashing wastewater treatment device based on dynamic membrane and use method of filter tank backwashing wastewater treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, a filter backwash wastewater treatment device based on a dynamic membrane, comprising an inlet pool 1, an inlet pump 3, a dynamic membrane treatment pool 4, an air pump 8 and an outlet pool 9, the outlet of the inlet pool 1 passes through the inlet pump 3 and The water inlet of dynamic membrane treatment pond 4 is connected, and water inlet pond 1 is provided with stirrer 2, is used for stirring waste water, and the position below water inlet is provided with horizontal filter screen 5 in dynamic membrane treatment pond 4, and the aperture of filter screen 5 is 48 μm, the filter screen 5 is provided with a pressure sensor 7, the outlet of the air pump 8 is connected to the air inlet of the dynamic membrane treatment tank 4, the position of the air inlet is lower than that of the filter screen 5, and the water outlet of the dynamic membrane treatment tank 4 is connected to the outlet of the dynamic membrane treatment tank 4. The water inlet of ...

Embodiment 2

[0031] The filter backwash wastewater treatment device based on dynamic membrane is the same as that in Example 1.

[0032] The steps for using the filter backwash wastewater treatment device based on the dynamic membrane are the same as those in Example 1, except that the amount of diatomite added is 0.4 g of diatomite per liter of wastewater.

Embodiment 3

[0034] The filter backwash wastewater treatment device based on dynamic membrane is the same as that in Example 1.

[0035] The steps of using the dynamic membrane-based filter backwash wastewater treatment device are the same as in Example 1, except that the amount of diatomite added is 0.2 g of diatomite per liter of wastewater.

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PUM

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Abstract

A filter backwashing wastewater treatment device based on a dynamic membrane comprises a water inlet tank, a water inlet pump, a dynamic membrane treatment tank, an air pump and a water outlet tank; a water outlet of the water inlet tank is connected with a water inlet of the dynamic membrane treatment tank through the water inlet pump, and a horizontal filter screen is arranged at the position, lower than the water inlet, in the dynamic membrane treatment tank; and a pressure sensor is arranged on the filter screen, an outlet of the air pump is connected with an air inlet of the dynamic membrane treatment tank, the position of the air inlet is lower than that of the filter screen, and a water outlet of the dynamic membrane treatment tank is connected with a water inlet of the water outlet tank. The invention also discloses a use method of the treatment device.

Description

technical field [0001] The invention relates to a filter tank backwash wastewater treatment technology, in particular to a filter tank backwash wastewater treatment device based on a dynamic membrane and a method for using the same. Background technique [0002] my country is a country rich in water resources, ranking fourth in the world, but the per capita water shortage is less than a quarter of the world's average level. Therefore, water conservation has become one of the contemporary themes. The production wastewater in the water supply plant accounts for 3%-8% of the total production, and the filter backwash wastewater accounts for the majority. This part of the water needs to be treated because it contains a large concentration of N, P and particulate matter. Discharge and reuse, as an important part of the wastewater treatment measures, has become a difficult point. [0003] At present, the backwash wastewater treatment technologies commonly used in water supply plan...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/10C02F101/16C02F101/30
CPCC02F9/00C02F1/001C02F1/281C02F3/34C02F2101/30C02F2101/16C02F2101/105
Inventor 李路程叶名逄晨宏李思敏王深
Owner NANJING UNIV OF INFORMATION SCI & TECH