CN201280490Y - Reclaimed water recycling apparatus by full membrane process - Google Patents

Reclaimed water recycling apparatus by full membrane process Download PDF

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Publication number
CN201280490Y
CN201280490Y CNU2008201667116U CN200820166711U CN201280490Y CN 201280490 Y CN201280490 Y CN 201280490Y CN U2008201667116 U CNU2008201667116 U CN U2008201667116U CN 200820166711 U CN200820166711 U CN 200820166711U CN 201280490 Y CN201280490 Y CN 201280490Y
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China
Prior art keywords
water
filtration
reverse osmosis
recycling device
water tank
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Expired - Lifetime
Application number
CNU2008201667116U
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Chinese (zh)
Inventor
沈海军
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Zhejiang Dongyang Environmental Engineering Co Ltd
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Zhejiang Dongyang Environmental Engineering Co Ltd
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Abstract

The utility model discloses a device for reusing recycled water by integrated membrane system. The device comprises a water collecting well, a booster pump, an intermediate water tank, a high pressure pump, a filtering device, a dosing system and a control system, wherein the filtering device comprises a microfiltration device, an ultrafiltration device and a reverse osmosis device; the water inlet of the microfiltration device is connected with the booster pump; the water outlet is connected with the water inlet of the ultrafiltration device; the water outlet of the ultrafiltration device is connected with the intermediate water tank; the intermediate water tank is connected with the water inlet of the reverse osmosis device through the booster pump; and the water outlet of the reverse osmosis device is connected with a reused water tank. The utility model solves the problems of complex structure, large occupied area, high cost and non-ideal treatment effect in the prior technology of reclaimed water reusing, has the advantages of good treatment effect, simple structure, high water utilization ratio and small occupied area, and is a reclaimed water recycling device which is worthy of popularization.

Description

Water recycling device in a kind of full embrane method
Technical field
The utility model relates to a kind of water treating equipment, specifically, relates to a kind of Waste water utilization rate height, and floor space is little, level of automation height, water recycling device in the good full embrane method of treatment effect.
Background technology
As everyone knows, China is the country of a shortage of water resources, and water resource of per capita is about 2200m 3, be about 1/4th of world average level.And China's water waste is serious, and water resource utilization efficiency is lower.Most of city of China all is in exsiccosis, particularly northern area substantially, and water resources is nervous especially.In the water resources anxiety, the middle water-white that a lot of Sewage Plant, enterprise's sewage plant all will be handled has been drained in vain.How to alleviate the situation of the water of productive use anxiety of short water supply, particularly enterprise, reuse in these water be most of people's approvals.What present domestic water consumption was bigger mainly is enterprise's water of productive use, and the water of reuse generally also mainly is to produce and use mixedly, and the middle water that the sewage disposal of enterprise is stood out generally all is up to standard substantially, and its water quality characteristic is: suspended substance is generally higher, and COD is generally not high.
In the prior art, middle water recycling method normally carries out a biological disposal upon+precipitates+filter, and not only the capital construction cost is bigger for this technology, and treatment effect is not fine, had a strong impact on the reuse scope of middle water.The operability of this technology is also poor simultaneously, needs the effect of control biological treatment.
Open day be patent document that April 6, publication number in 2005 are CN2690390 disclose a kind of integrated in the water recycling and processing equipment, include automatic control system, mechanical means, water treating pond, water treating pond includes screen cloth, preliminary sedimentation tank, anoxic pond, Aerobic Pond, water collecting basin, pressure filter, being provided with posticum on anoxic pond is communicated with Aerobic Pond, Aerobic Pond is communicated with water collecting basin, water collecting basin is communicated with pressure filter by pump, in Aerobic Pond, be provided with circulation baffle plate and aerator, between anoxic pond and Aerobic Pond, be provided with refluxing opening.It mainly adopts the technology of circulation plate and return port to make stable effluent quality, and treatment effect is better, and it is little to have floor space simultaneously, the level of automation advantages of higher.But complex structure, manufacturing cost is big, and is difficult to be applied on the large-engineering.
Open day is December 19 calendar year 2001, publication number is that the patent document of CN2466152 discloses water reuse apparatus in a kind of built-up type, be to be communicated with intake pump in the import that is arranged on the multiway valve on the bio-reactor, other four valve ports of this valve respectively with bio-reactor in drain cap, the bio-reactor import, one valve port of the multiway valve on the import of the multiway valve on the strainer and water shoot and the strainer is connected, other three valve ports of the multiway valve on the strainer respectively with filter inlet and wherein drain cap, the lower port of charcoal strainer is connected, the charcoal strainer is connected with sterilization equipment.What it adopted is that traditional biochemistry adds physicochemical techniques, but floor space is big, and treatment effect is not very desirable.
Open day be patent document that July 21, publication number in 2004 are CN2626987 disclose a kind of in water reuse apparatus, belong to a kind of equipment that can utilize once more after sanitary sewage is handled.Mainly be divided into three cavitys in this equipment, water-in is connected with the chamber; Be filled with filtrate in the chamber, also be provided with internal circulation pump and foam separator in the chamber; The chamber communicates with the chamber, is provided with filler and automatic backwash device in the chamber; The chamber communicates with the chamber, is provided with gac in the chamber; Water outlet is connected with the chamber.This structure mainly is to use media filtration, has physico-chemical process concurrently, the characteristics that biochemical process organically combines.But biochemical process has wayward, the shortcoming of poor operability etc.
Open day be patent document that April 30, publication number in 2008 are CN201053133 disclose a kind of modified version full-automatic in water recycling device, comprise raw water box, pure water case, PLC Controlling System, medicine tank-washer, RO system backwashing pump, dense water water-storing device and backwashing pump, and the topping-up pump, filtration with manganese sand device, quartz sand filtration device, the activated charcoal filter that set gradually to the pure water case from raw water box and the RO main frame of forming by accurate filter, high-pressure pump and RO film, the pure water case connects the pure water water outlet of RO main frame.This structure is used the technology of mechanical filter+reverse osmosis, and washes reverse osmosis automatically.The water quality of this art breading is greatly improved than traditional technology, and its operation is also convenient relatively, but mechanical filter is relatively heavier, and filter effect is not as good as embrane method.
Open day be that patent document that July 9, publication number in 2008 are CN101215052 discloses that a kind of to disclose a kind of be the Processes and apparatus of middle water with sewage disposal, its technology comprised as the next stage: the flocculation dosing stage; The fiber filter stage; The water distribution stage; The integrated film system handles stage; Blend the stage; Its equipment comprises: the line mixer that is connected in series successively, microvovtex flocculation reaction settling pond, high-efficiency fiber filter tank, intermediate pool, integrated film system and clean water basin.This invention is the center with the desalting of reverse osmosis unit, filter with microvovtex flocculation, high-efficiency fiber successively and ultrafiltration as pre-treatment, and former water equalizing tank is set, guarantee the steady running of reverse osmosis unit.Obviously, it is relatively complicated to invent its operation process, is difficult for promoting.
The utility model content
The utility model is big for complex structure, the floor space that solves existing technology of middle water recycle existence, cost is high and the unfavorable problem of treatment effect provides water recycling device in the full embrane method that a kind of treatment effect is good, simple to operate, water use efficiency is high, floor space is few.
The utility model is to reach the concrete technical scheme that above-mentioned technical purpose adopts to be: water recycling device in a kind of full embrane method, comprise pump well, topping-up pump, intermediate water tank, high-pressure pump, filtration unit and medicine system, Controlling System, it is characterized in that: described filtration unit comprises micro-filtration, ultra-filtration equipment and reverse osmosis unit, the water-in of micro-filtration connects topping-up pump, water outlet connects the water-in of ultra-filtration equipment, the water outlet of ultra-filtration equipment connects intermediate water tank, intermediate water tank is connected with the water-in of reverse osmosis unit by high-pressure pump, and the water outlet of reverse osmosis unit connects the reuse water tank.Because the middle water that the utility model is discharged with sewage plant, is considered these former water as former water and handles by biochemistry or materialization that its pollution level is relatively low, at the higher suspended substance of content in the former water, adopts micro-filtration and ultra-filtration equipment to be removed; And at the not high COD of content, then removed by ultrafiltration and reverse osmosis unit, make water outlet reach the requirement of enterprise's water of productive use.Former water of the present utility model is owing to passed through micro-filtration and uf processing respectively before reverse osmosis; effects of pretreatment is better than mechanical filter; not only protected reverse osmosis; reduce the wash number of reverse osmosis; increase reverse osmosis membrane work-ing life; also can make simultaneously system's operation more stable, effluent quality is better.
As preferably, micro-filtration is connected Waste Water Treatment by pipeline respectively with the dense water out of ultra-filtration equipment.Its concentration of the dense water of prime of considering the generation of micro-filtration and ultra-filtration equipment is higher, and therefore, the dense water that preceding dual stage filter apparatus is produced directly enters Waste Water Treatment by pipeline respectively.
As preferably, the dense water out of reverse osmosis unit connects pump well by pipeline.The dense water that reverse osmosis unit produces has been because its concentration is lower, therefore can Recycling, and therefore, the dense water that reverse osmosis unit is produced can improve the utilization ratio of water like this by pipeline access set well.
As preferably, the microstraining core aperture of micro-filtration is 10~50 μ m.
As preferably, ultra-filtration equipment adopts hollow-fibre membrane, and molecular weight cut-off is 6000~50000 dalton, and hollow-fibre membrane adopts acid and alkali-resistance, anti-pollution and long service life polysulfones or polyether sulfone materials.
As preferably, the used membrane element of reverse osmosis unit is the rolling composite membrane.
As preferably, Controlling System is programmable PLC controller.The PLC controller is one and thinks that treater is the electronic system device of core, aims at industry spot and uses and design, and has the reliability height, immunity from interference is strong, uses simply characteristics easy to maintenance, can reduce the workload of the design and construction of Controlling System, reduce cost.The PLC controller is controlled whole water treatment procedure, comprises the timing backwash of micro-filtration, ultra-filtration equipment, the timing flushing of reverse osmosis unit, and according to the level condition of pump well, intermediate water tank and reuse water tank, the start-stop of control topping-up pump and high-pressure pump.
As preferably, the pipeline between intermediate water tank and the high-pressure pump is provided with medicine system, and storing in the medicine system has Scale inhibitors and reductive agent.Scale inhibitors can effectively prevent the formation of incrustation scale, the sticking body of microorganism, ratio of desalinization, the water production rate of raising system.Add before reverse osmosis system and use reductive agent, main purpose is to prevent oxygenant oxidation reverse osmosis membrane residual in the former water, plays the protection reverse osmosis membrane, prolongs the work-ing life of reverse osmosis membrane.
The beneficial effects of the utility model are: complex structure, the floor space that it has solved existing technology of middle water recycle existence effectively is big, cost is high and treatment effect portion ideal problem.The utility model treatment effect is good, floor space reaches the level of automation height less, and middle water comprehensive utilization ratio reaches more than 95%, is worth of widely use.
Description of drawings
Fig. 1 is a kind of structural representation of water recycling device in the full embrane method of the utility model.
Fig. 2 is a kind of structural representation of water recycling device Controlling System in the full embrane method of the utility model.
Among the figure: 1. pump well, 2. topping-up pump, 3. micro-filtration, 4. ultra-filtration equipment, 5. intermediate water tank, 6. chemicals dosing plant, 7. high-pressure pump, 8. reverse osmosis unit, 9. reuse water tank, 10~13. pipelines, 14.PLC controller.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings the embodiment of technical solutions of the utility model is further described.
Embodiment 1
In embodiment 1 as shown in Figure 1, water recycling device comprises pump well, topping-up pump, intermediate water tank, high-pressure pump, filtration unit and medicine system, Controlling System in the full embrane method, filtration unit comprises micro-filtration 3, ultra-filtration equipment 4 and reverse osmosis unit 9, the water-in of micro-filtration 3 connects topping-up pump 2, water outlet connects the water-in of ultra-filtration equipment 4, the water outlet of ultra-filtration equipment 4 connects intermediate water tank 5, and micro-filtration 3 is connected Waste Water Treatment by pipeline 10 with pipeline 11 respectively with the dense water out of ultra-filtration equipment 4.Intermediate water tank 5 is connected by the water-in of high-pressure pump 7 with reverse osmosis unit 9, and the water outlet of reverse osmosis unit 9 connects reuse water tank 9.The dense water out of reverse osmosis unit 9 connects pump well 1 by pipeline 13.Pipeline 12 between intermediate water tank 5 and the high-pressure pump 7 is provided with medicine system 6, and storing in the medicine system 6 has Scale inhibitors and reductive agent.
Micro-filtration adopts the aperture to be about the microstraining core of 30 μ m, and ultra-filtration equipment adopts hollow-fibre membrane, and its molecular weight cut-off is about 30000 dalton.Hollow-fibre membrane adopts the polysulfone material of acid and alkali-resistance, anti-pollution and long service life, and the used membrane element of reverse osmosis unit is the rolling composite membrane.
The Controlling System of water recycling device is programmable PLC controller 14 (see figure 2)s in the full embrane method.The PLC controller is controlled whole water treatment procedure, comprises the timing backwash of micro-filtration, ultra-filtration equipment, the timing flushing of reverse osmosis unit; According to the level condition of pump well, intermediate water tank and reuse water tank, the start-stop of control topping-up pump and high-pressure pump is stopped topping-up pump when low or intermediate water tank liquid level is high in the pump well liquid level, stops high-pressure pump when the low or reuse high water tank of intermediate water tank liquid level is high; Water quality control chemicals dosing plant according to intermediate water tank adds Scale inhibitors and reductive agent simultaneously.
When water recycling device is worked in the full embrane method, former water in the pump well is gone into micro-filtration through topping-up pump pressurization is laggard, micro-filtration is removed bigger suspended substance, the water outlet of micro-filtration enters ultra-filtration equipment by pipeline, ultra-filtration equipment is removed suspended substance and partial organic substances, turbidity is lowered, and the water that produces after the ultrafiltration enters intermediate water tank; The water of intermediate water tank by medicine system add Scale inhibitors with reductive agent after high-pressure pump enters reverse osmosis unit after pressurizeing, most salts and organism are removed in reverse osmosis, the water purification of Chan Shenging enters the reuse water tank at last.
The dense water that micro-filtration and ultra-filtration equipment produce enters Waste Water Treatment through pipeline, and the dense water that reverse osmosis unit produces is back to pump well through pipeline.

Claims (10)

1. water recycling device in the full embrane method, comprise pump well, topping-up pump, intermediate water tank, high-pressure pump, filtration unit and medicine system, Controlling System, it is characterized in that: described filtration unit comprises micro-filtration (3), ultra-filtration equipment (4) and reverse osmosis unit (9), the water-in of micro-filtration (3) connects topping-up pump (2), water outlet connects the water-in of ultra-filtration equipment (4), the water outlet of ultra-filtration equipment (4) connects intermediate water tank (5), intermediate water tank (5) is connected by the water-in of high-pressure pump (7) with reverse osmosis unit (9), and the water outlet of reverse osmosis unit (9) connects reuse water tank (9).
2. water recycling device in the full embrane method according to claim 1 is characterized in that described micro-filtration (3) is connected Waste Water Treatment by pipeline (10) with pipeline (11) respectively with the dense water out of ultra-filtration equipment (4).
3. water recycling device in the full embrane method according to claim 1 is characterized in that the dense water out of described reverse osmosis unit (9) connects pump well (1) by pipeline (13).
4. water recycling device in the full embrane method according to claim 1, the microstraining core aperture that it is characterized in that described micro-filtration are 10~50 μ m.
5. water recycling device in the full embrane method according to claim 1 is characterized in that described ultra-filtration equipment adopts hollow-fibre membrane, and molecular weight cut-off is 6000~50000 dalton.
6. water recycling device in the full embrane method according to claim 5 is characterized in that described hollow-fibre membrane adopts the polysulfones or the polyether sulfone materials of acid and alkali-resistance, anti-pollution and long service life.
7. water recycling device in the full embrane method according to claim 1 is characterized in that the used membrane element of described reverse osmosis unit is the rolling composite membrane.
8. according to water recycling device in claim 1 or 2 or 3 or 4 or 5 or the 6 or 7 described full embrane methods, it is characterized in that described Controlling System is a programmable PLC controller (14).
9. according to water recycling device in claim 1 or 2 or 3 or 4 or 5 or the 6 or 7 described full embrane methods, it is characterized in that the pipeline (12) between described intermediate water tank (5) and the high-pressure pump (7) is provided with medicine system (6), storing in the medicine system (6) has Scale inhibitors and reductive agent.
10. water recycling device in the full embrane method according to claim 8 is characterized in that the pipeline (12) between described intermediate water tank (5) and the high-pressure pump (7) is provided with medicine system (6), and storing in the medicine system (6) has Scale inhibitors and reductive agent.
CNU2008201667116U 2008-10-16 2008-10-16 Reclaimed water recycling apparatus by full membrane process Expired - Lifetime CN201280490Y (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102674579A (en) * 2012-05-24 2012-09-19 北京碧水源净水科技有限公司 Water supply depth processing system capable of automatically washing, realizing water supply according to quality, saving water and reducing emission
CN102942265A (en) * 2012-11-16 2013-02-27 南京中电环保工程有限公司 Whole-membrane-process water treatment integration device
CN103214130A (en) * 2013-04-03 2013-07-24 宁波大学 Photocatalytic wastewater degradation reactor expansion method for in-situ counteraction of catalytic agglomerates
CN103224265A (en) * 2013-04-03 2013-07-31 宁波大学 Large-scale photocatalytic wastewater degradation reactor getting rid of trouble of catalyst agglomeration
CN103232129A (en) * 2013-04-03 2013-08-07 宁波大学 Method for expanding volume of microwave photochemical catalysis wastewater degradation reactor capable of resisting catalyst agglomeration
CN103241868A (en) * 2013-04-03 2013-08-14 宁波大学 Large-capacity microwave photocatalysis waste water degradation device with reversion catalyst agglomeration function
CN103241869A (en) * 2013-04-03 2013-08-14 宁波大学 High-capacity reactor with catalyst agglomerate digestion mechanism for photocatalytic wastewater degradation
CN104341054A (en) * 2014-10-16 2015-02-11 衢州市鼎盛化工科技有限公司 Reclaimed water recycling intelligent integrated device capable of implementing zero sewage discharge and application thereof

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102674579A (en) * 2012-05-24 2012-09-19 北京碧水源净水科技有限公司 Water supply depth processing system capable of automatically washing, realizing water supply according to quality, saving water and reducing emission
CN102674579B (en) * 2012-05-24 2013-10-16 北京碧水源净水科技有限公司 Water supply depth processing system capable of automatically washing, realizing water supply according to quality, saving water and reducing emission
CN102942265A (en) * 2012-11-16 2013-02-27 南京中电环保工程有限公司 Whole-membrane-process water treatment integration device
CN103241869A (en) * 2013-04-03 2013-08-14 宁波大学 High-capacity reactor with catalyst agglomerate digestion mechanism for photocatalytic wastewater degradation
CN103232129A (en) * 2013-04-03 2013-08-07 宁波大学 Method for expanding volume of microwave photochemical catalysis wastewater degradation reactor capable of resisting catalyst agglomeration
CN103241868A (en) * 2013-04-03 2013-08-14 宁波大学 Large-capacity microwave photocatalysis waste water degradation device with reversion catalyst agglomeration function
CN103224265A (en) * 2013-04-03 2013-07-31 宁波大学 Large-scale photocatalytic wastewater degradation reactor getting rid of trouble of catalyst agglomeration
CN103214130A (en) * 2013-04-03 2013-07-24 宁波大学 Photocatalytic wastewater degradation reactor expansion method for in-situ counteraction of catalytic agglomerates
CN103224265B (en) * 2013-04-03 2015-11-25 宁波大学 Obviate the high throughput photocatalytic waste water degradation reactor of agglomeration puzzlement
CN103214130B (en) * 2013-04-03 2015-11-25 宁波大学 The photocatalytic waste water degradation reactor expansion method that agglomeration thing original position is cleared up
CN103241868B (en) * 2013-04-03 2015-11-25 宁波大学 Tool reverses the Large-capacity microwave photocatalytic wastewater degradation device of agglomeration function
CN103232129B (en) * 2013-04-03 2015-11-25 宁波大学 The Microwave photochemical catalytic wastewater degradation reactor expansion method of anti-agglomeration
CN103241869B (en) * 2013-04-03 2015-12-09 宁波大学 The photocatalytic wastewater degradation high-capacity reactor of mechanism is cleared up containing agglomeration thing
CN104341054A (en) * 2014-10-16 2015-02-11 衢州市鼎盛化工科技有限公司 Reclaimed water recycling intelligent integrated device capable of implementing zero sewage discharge and application thereof

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