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Zero-discharging technology in reclaimed water reuse

A zero-discharge, reclaimed water technology, used in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of unbearable factories, high operating costs, and high energy consumption for thermal concentration , to achieve the effect of reducing scale and operating costs, avoiding emissions, and improving economic benefits

Active Publication Date: 2014-11-19
CHENGDU MEIFUTE MEMBRANE TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy consumption of thermal concentration is high, and the operating cost is high, which is unbearable for the factory

Method used

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  • Zero-discharging technology in reclaimed water reuse
  • Zero-discharging technology in reclaimed water reuse
  • Zero-discharging technology in reclaimed water reuse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] like figure 1 As shown, the zero-discharge technology for reclaimed water reuse is equipped with a biochemical effluent tank for holding biochemical effluent, and UF ultrafiltration devices, roll-type RO membrane devices, SUPER RO membrane devices, and evaporation devices are also arranged in sequence on the biochemical effluent tanks. , A clear water pool is also provided to connect with the roll-type RO membrane device, SUPER RO membrane device and evaporation device.

[0042] The biochemical effluent is exported from the biochemical effluent pool. After the macromolecular pollutants are filtered by the UF ultrafiltration device, the produced water cycle enters the biochemical effluent pool again, and the ultrafiltration concentrated water obtained after filtration enters the roll-type RO membrane device for the next step of concentration. .

[0043] The ultrafiltration concentrated water is divided into two parts after being concentrated by the roll-type RO membrane...

Embodiment 2

[0049] like figure 2 , 3 , 9, the sewage diversion filter device includes at least two diversion plates 1 and a diaphragm 10 used in conjunction with each other, wherein the diversion disc 1 and the diaphragm 10 are adjacent to each other, and the number of diversion discs 1 One more than the number of diaphragms 10, the guide plate 1 is a disc with a center hole 7 in the guide plate, and a boss is also arranged on the surface of the guide plate 1. On the guide plate 1 There are also two diversion slits 3 , and two orientation slits 13 matching the diversion slits 3 are arranged on the diaphragm 10 . There is a ring of protruding teeth 8 arranged along the radial direction on the outer side of the hole 7 of the above-mentioned deflector plate. The protruding teeth 8 are fixed on the inner edge of the deflector plate 1, and gaps are provided between the protruding teeth 8. The gaps are diversion gaps. , the setting positions of the upper and lower sides of the protruding tee...

Embodiment 3

[0054] like Figure 4 , 5 As shown, the difference between this embodiment and Embodiment 1 lies in that the bosses are convex strips 9 , and the convex strips 9 are arranged on both sides of the deflector plate 1 in a certain arc in sequence. The convex line can better guide the dirty liquid, further reduce the pressure loss of the dirty liquid in the flow process, make better use of production resources, and reduce production loss; at the same time, the contact area between the convex line and the diaphragm Larger, which further reduces the force on the surface of the diaphragm, better avoids the damage of the diaphragm during use, improves the service life of the diaphragm, reduces the maintenance frequency during use, and greatly improves the use effect.

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PUM

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Abstract

The invention discloses a zero-discharging technology in reclaimed water reuse. A biochemical water-discharging tank which is used for accommodating biochemically discharged water is arranged. An ultrafiltration device, a roll-type reverse osmosis membrane device, a super reverse osmosis membrane device and an evaporation device are successively arranged on the biochemical water-discharging tank.A clean water tank is connected to the roll-type reverse osmosis membrane device, the super reverse osmosis membrane device and the evaporation device. The invention discloses a super reverse osmosismembrane device which includes a circular tube pressure bearing outer shell, a metal sealing piece, a flange disk, a fluid reversing disk, a sealed circular tube pressure bearing inner shell, a waterdistributer, an inner pulling rod, a supporting and guiding disk, a membrane piece, a liquid inlet pipe and a liquid outlet pipe. The invention provides the zero-discharging technology in reclaimed water reuse, which can reduce energy consumption of sewage treatment and further reduce investment required in the sewage treatment. By means of the technology, a sewage treatment effect is improved anda zero-discharging requirement is achieved.

Description

technical field [0001] The invention relates to a waste water treatment technology, in particular to a zero-discharge technology for reuse of reclaimed water in sewage treatment. Background technique [0002] At present, many industries and regions need to meet the "zero discharge" requirement of wastewater for some industrial enterprises. The so-called "zero discharge" means that the factory needs to realize the recycling and reuse of production raw materials and water resources, and requires no discharge of any waste liquid. [0003] For "zero discharge", the vast majority of industrial enterprises are doing the following considerations according to their own industry and product characteristics: recycling useful production materials to reduce costs, reduce the load of sewage stations, and try their best to achieve completely clean production; reuse reclaimed water to reduce Sewage discharge; upgrading and reconstruction of sewage stations for advanced treatment and reuse...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F9/10
Inventor 宋岱峰
Owner CHENGDU MEIFUTE MEMBRANE TECHNOLOGY CO LTD
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