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Partial-immersion rotary disc filter tank used for deep treatment of sewage and reuse of reclaimed water

A rotary disc filter, advanced treatment technology, applied in the direction of filtration separation, separation method, mobile filter element filter, etc., can solve the problems of sewage pollution of the collection tank, limited effective filtration depth, and impact on the effluent quality, etc. The effect of saving civil construction investment cost, saving re-investment, and small hydraulic loss

Pending Publication Date: 2018-07-17
THUNIP CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a setting method can easily cause the filtered water to be polluted by the sewage in the collection tank, seriously affecting the quality of the effluent
And because it is set in the central tube, once a problem occurs, it is extremely difficult to repair, and the production can only be stopped
[0004] Chinese patent 201310144974.2 discloses a filter device for semi-submerged rotary disc filter equipment for deep filtration of sewage. The filter screen of the filter device is made of stainless steel 316L, and its effective filter depth is very limited, so its dirt-holding capacity is small
Increased processing costs

Method used

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  • Partial-immersion rotary disc filter tank used for deep treatment of sewage and reuse of reclaimed water
  • Partial-immersion rotary disc filter tank used for deep treatment of sewage and reuse of reclaimed water
  • Partial-immersion rotary disc filter tank used for deep treatment of sewage and reuse of reclaimed water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1-3 As shown, the partially submerged fiber rotary filter tank body used for the advanced sewage treatment process and the filtration treatment of reclaimed water includes: inlet channel 1, central tube support pier 7, sewage pool 4, clear water channel 11, and outlet channel 12. According to the flow direction of water, arrange the water inlet channel 1, water inlet weir, filter plate 3, and water outlet channel 12 in sequence;

[0036] The water inlet weir is provided with an electric rotary adjustment weir gate 2, and the water inlet channel is connected to the filter disc, and the surface of the filter disc is covered with a filter cloth made of hydrophilic synthetic fiber; the middle part of the filter disc passes through the center The barrel is connected to the clear water canal 11, a water outlet weir is set between the clear water canal 11 and the water outlet canal 12, and the water outlet electric rotary adjustment weir gate 6 is arranged on t...

Embodiment 2

[0047] Adopt and the device of embodiment 1 system, operating parameter is:

[0048] The filtering operation includes: the sewage enters the sewage pool through the water inlet channel 1, the liquid level is adjusted by the electric rotary weir gate until the turntable is submerged to 70%, the reducer controls the speed of the filter disk to 4r / min to soak the filter cloth; the filtered clean water Collected by the central cylinder and quickly discharged to the clear water channel 11;

[0049] After 2 hours, start the reducer to drive the filter disc to rotate, and start backwashing.

[0050] The backwashing operation includes: the rotation speed of the filter disc during backwashing is 2r / min; the filtered clear water in the filter disc 3 is extracted to flush the filter cloth in reverse. The filtration flux of the filter cloth is restored, and the liquid level in the sewage tank drops. The backwash water discharged by the backwash drain pipe 9 is discharged for other treat...

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PUM

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Abstract

The invention provides a partial-immersion rotary disc filter tank used for deep treatment of sewage and reuse of reclaimed water. The partial-immersion rotary disc filter tank comprises a water inletchannel, a water inlet weir, filter discs and a water outlet channel; the water inlet channel, the water inlet weir, the filter discs and the water outlet channel are sequentially arranged accordingto the flow direction of water; a water inlet electric rotary regulating weir gate is arranged on the water inlet weir; the water inlet channel is connected with the filter discs; the surface of eachfilter disc is covered with a fiber filter cloth; the middle part of the filter discs is connected with a clear water channel; a water outlet weir is arranged between the clear water channel and the water outlet channel; and a water outlet electric rotary adjusting weir gate is arranged on the water outlet weir. The invention also provides the beneficial effects of the partial-immersion rotary disc filter tank. According to the invention, the filter cloths woven by using hydrophilic modified fibers are adopted as a filter medium, the filtering depth of the filter medium is large, the pollutantcarrying capacity is strong, and the surface is not easily dried and hardened. The partial-immersion rotary disc filter tank breaks through the limitation of the operation modes of common fiber rotary disc filters in the market and can be operated with partial immersion, and the immersion depth can be adjusted. The hydraulic loss is saved by 1 / 3-1 / 2, and the energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a filtering device. Background technique [0002] With the construction and development of sewage treatment facilities in our country, the amount of sewage treatment has increased year by year, and the role of sewage regeneration and resource utilization is of great significance. In recent years, the pollution of surface water in some areas of the country has been deteriorating, and surface water and groundwater resources have become increasingly scarce. As the second water source of the city, urban sewage is more stable and reliable than seawater and rainwater. The realization of advanced sewage treatment and reuse of reclaimed water is of great strategic significance for alleviating the shortage of water resources and ensuring urban water supply. At present, the ordinary rotary disc filter on the market operates in the form of fully submerged filtration i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D33/21B01D33/50B01D33/72B01D33/74B01D33/80
CPCB01D33/21B01D33/503B01D33/72B01D33/74B01D33/801B01D33/804B01D33/807
Inventor 朱文明曲颂华袁锡强王妍春王晨王仁梅陆朝华张莉田张成庞雪梅李星文
Owner THUNIP CORP LTD
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