CN101125694A - Medical zero waste water central membrane processing method and water machine thereof - Google Patents
Medical zero waste water central membrane processing method and water machine thereof Download PDFInfo
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- CN101125694A CN101125694A CNA2007100703558A CN200710070355A CN101125694A CN 101125694 A CN101125694 A CN 101125694A CN A2007100703558 A CNA2007100703558 A CN A2007100703558A CN 200710070355 A CN200710070355 A CN 200710070355A CN 101125694 A CN101125694 A CN 101125694A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The invention discloses a treatment method of medical reverse osmosis water and equipment thereof. The method is to have the pretreatment of raw water, filter water in a secondary filter, lift water pressure by a high head pump and finally filter and concentrate water in a reverse osmosis membrane. The low conductivity water filtered and concentrated in the reverse osmosis membrane is gathered in a pure water tank and to be used after treatment while the waste water from the reverse osmosis membrane is put into a set of or more degermation velum or low desalination velum. The water is gathered in one or more pure water tank(s) after filtration and to be used after treatment. The device consists of a pretreatment system, a central membrane processing system and a final processing system, wherein, the central membrane processing system comprises the secondary filter, the high head pump and the reverse osmosis membrane which are connected by pipes. A waste water outlet of the reverse osmosis membrance is connected with a set of or more degermation velum or low desalination velum. The invention has the advantages of making the best use of discharged waste water, saving energy consumption, reducing noise, and simultaneously providing pure water of various qualities to a plurality of section offices.
Description
Technical field
The present invention relates to a kind of medical reverse osmosis water treatment method and equipment, it is used for the industry that hospital, pharmacy, food-processing etc. have higher requirements to water quality.
Background technology
Is former water with hospital with ordinary tap water, surface water or underground water, by medical film treating water machine, after suitable embrane method water technology processing, make in the former water certain or multiplely inorganicly separated or adsorbed with organic substance, supply with the section office that demand is arranged and use thereby obtain pure water by the requirement of expection.
Referring to Fig. 1, this water machine is made up of pre-treatment, reverse osmosis and aftertreatment three big systems usually, the water machine is in system water running process, former water carries out pre-treatment behind topping-up pump 1 ', behind high-pressure pump 3 ' adherence pressure, enter reverse osmosis membrane 4 ' purification process then, the pure water of reverse osmosis membrane 4 ' one side is collected utilization, and the waste water of opposite side is then as waste discharge.Its shortcoming is that the utilization ratio of former water is had only about 50%, and because of the hydraulic pressure of waste side higher (usually more than 1.5MPa), current are through the discharging of terminal variable valve the time, the high pressure of front end is reduced to common normal pressure suddenly, pressure differential deltap P 〉=1.0MPa, the merit that the unexpected step-down of current is consumed is finally discharged with the noise form, so not only wastes energy consumption, also produces a large amount of noises.And this water machine can only solve the pure water user demand of a certain section office, provides pure water as need to a plurality of section office, just needs to install many cover water machines.
China's utility model 200420092652.4 disclosed " medical reverse osmosis water treating equipment " suction culvert of system by water links to each other with the water-in of reverse osmosis membrane group by water intaking valve and high-pressure pump control, the pure water outlet of reverse osmosis membrane group is external pure water container through the water route, and dense water (waste water) outlet of reverse osmosis membrane group takes back water and drainage cell through another water route.What adopt promptly is above-mentioned water machine and water treatment method, has that former water use efficiency is low, noise big, can only singly overlap the problem of use.
Summary of the invention
Medical zero waste water central membrane facture and water machine thereof that technical problem to be solved by this invention provides a kind of waste water that makes full use of discharging, energy efficient, minimizing noise, can provide different quality to require pure water for many section office simultaneously.
The present invention addresses the above problem the technological method that is adopted: this medical zero waste water central membrane facture is carried out pre-treatment to former water earlier, then water is sent into secondary filter filtration, high-pressure pump adherence pressure, entering reverse osmosis membrane filtration again concentrates, it is characterized in that: reverse osmosis membrane filtration concentrates pure water collection that the back produces in the pure water case, after aftertreatment for use; What reverse osmosis membrane filtration concentrated that waste water that the back produces enters a group or more removes mycoderm or low desalination film, is collected in one or more pure water case after the filtration, after aftertreatment for use.
This method is described removes mycoderm or low desalination film is MF film, UF film, NF film or low pressure RO film.
The described pre-treatment of this method is after Jiang Yuanshui sends into raw water box, sends into FEF filter, SF water softener and CF carbon filter successively with topping-up pump again and handles.
This method adopt scavenging pump to reverse osmosis membrane, remove mycoderm and low desalination film cleans or back flushing.
This method reverse osmosis membrane filtration concentrates and to enter degerming film or low desalination film after waste water that the back produces is regulated by variable valve, and the pure water case that links to each other with reverse osmosis membrane, with remove pure water case that mycoderm or low desalination film link to each other be difference independently.
The present invention addresses the above problem the technological method that is adopted to be also had: this water machine comprises pretreatment system, central membrane treatment system and after-treatment system, wherein the central membrane treatment system comprises by the interconnected secondary filter of pipeline, high-pressure pump and reverse osmosis membrane, its constructional feature be the wastewater outlet of described reverse osmosis membrane be connected with a group or more remove mycoderm or low desalination film.
This water machine is described to remove mycoderm or low desalination film is MF film, UF film, NF film or low pressure RO film.
The described pretreatment system of this water machine comprises by the interconnected raw water box of pipeline, topping-up pump, FEF filter, SF water softener and CF carbon filter.
The described reverse osmosis membrane of this water machine, remove mycoderm or low desalination symphysis is connected to scavenging pump.
The described wastewater outlet of this water machine links to each other with the water-in that removes mycoderm or low desalination film by variable valve, and the outlet of the pure water of reverse osmosis membrane, the pure water outlet that removes mycoderm or low desalination film are passed through the pure water case respectively, transferpump links to each other with after-treatment system.
The present invention compared with prior art has following beneficial effect:
What 1, this water machine adopted reverse osmosis membrane and a group or more removes mycoderm or low desalination film, utilize the operting differential pressure between the different films different, the function that many embrane method water treating equipment of these need could be realized just can be finished with a set of equipment, has saved equipment investment cost and running cost.With certain hospital is example, this hospital has six section office that the pure water of different quality requirement separately need be provided by design requirements, configuration routinely, each section office all need purchase the water machine that a cover can satisfy oneself requirement, the expense of six cover water machine required equipment investments is at least 1,330,000 yuan through accounting, adopted this water machine, cost of equipment is reduced to 500,000 yuan, equipment is together with 1,000,000 yuan of pure water transfer line overall cost of ownership less thaies, originally six cover dingus are intensive has exactly become a cover bigger device for its reason, and what each accessory was equal after amplifying is actual in the comprehensive cost of cost far below six cover dingus.
2, under the situation of using a set of equipment, need not increase any energy consumption, list can become the wastewater treatment that originally can only discharge another kind of or multiple high-quality product water with the surplus pressure that originally is the waste water side, accomplishes wastewater zero discharge, realization is turned waste into wealth, and makes the best use of everything.The waste water that this design emits former herbal classic reverse osmosis membrane again through a group or more remove mycoderm or low desalination film is handled, the major function of reverse osmosis membrane is to remove ion, the function of removing mycoderm or low desalination film mainly is organism such as removal thalline, the operating pressure of reverse osmosis membrane is had relatively high expectations, the operating pressure requirement that removes mycoderm or low desalination film film is lower, and the waste water surplus pressure of reverse osmosis membrane is enough to satisfy except that mycoderm or the required pressure of low desalination film work operation.
3, adopt this facture and water machine thereof, the absolute pressure reduction at variable valve two ends almost goes to zero, thereby the noise that variable valve is produced also goes to zero, and this water machine is arranged in concealed locations such as vault usually in addition, also uses section office away from the puzzlement of water machine noise.
4, reducing the usable floor area of machine room, is card with hospital's example, if adopt six cover section office single with actual, the total area needs 105M at least
2, and the water machine must take section indoor than large space, what adopt that this water machine uses is podium, and area only needs 40M
2Get final product.
5, water machine overall operation and pure water production cost on average can reduce more than 50%, following subordinate list is the comparison of certain hospital's pure water supply system facility investment and running cost, can be clear that from this table, use this facture and water machine thereof, half of its single water machine of annual operating cost deficiency section office.
For illustrating further beneficial effect of the present invention, referring to following certain hospital's pure water supply system facility investment and running cost comparison sheet.
| Project | Water machine of the present invention (being as the criterion) with 8000L/H | Each section office's independence water machine supplies water (amounting to 8000L/H) |
| Overall cost of ownership | Realize the water equipment: $1 that the right hurdle of |
1.1000L/H hemodialysis watering equipment: $250,000 yuan; 2.3000L/H aseptic wash water equipment: 310,000; 3.500L/H pathology chamber pure water equipment: $130,000; 4.1000L/H biochemical analysis watering equipment: $250,000; 5.2000L/H central supply chamber watering equipment: $260,000 yuan; 6.500L/H the watering equipment: $130 of marrow section, 000 yuan; Amount to: $1,330,000 yuan |
| Total floor space | 40 square metres | 1.1000L/H hemodialysis watering equipment: 20 square metres; 2.3000L/H aseptic wash water equipment: 25 square metres; 3.500L/H pathology chamber pure water equipment: 10 square metres; 4.1000L/H biochemical analysis watering equipment: 20 square metres; 5.2000L/H central supply chamber watering equipment: 20 square metres; 6.500L/H marrow section watering equipment: 10 square metres; Amount to: about 105 |
| Management | ||
| 1 people be concurrently in charge of | 6 people be concurrently in charge of | |
| Annual operating cost | Controlling water fee is with=0.0088 yuan/liter * 8000L/H * 8H/D * 360 day/year=202752 yuan/year; With rent=40M 2* 10 yuan of/month .M 2(annotate: machine room is with 10 yuan of/month .M of rent meter in * 12=4800 unit/year 2); Operational administrative takes=and 1000 yuan/month. people * 1 people * 12=12000 unit/year; Adding up to: ∑=controlling water fee+usefulness rent+operational administrative takes=and 219552 yuan/year | Controlling water fee is with=0.0164 yuan/liter * 8000L/H * 8H/D * 360 day/year=377856 yuan/year; With rent=105M 2* 30 yuan of/month .M 2* 12=37800 unit/year (annotate: machine room is with 30 yuan/month of rent meters. M 2); Overheads=1000 yuan/month. people * 6 people * 12=72000 unit/year; Adding up to: ∑=controlling water fee+usefulness rent+operational administrative takes=and 487656 yuan/year |
Description of drawings
Fig. 1 is the water machine schematic diagram of prior art.
Fig. 2 is a water machine schematic diagram of the present invention.
Fig. 3 is that the accessory of the embodiment of the invention connects process flow sheet.
Fig. 4 is the wiring layout of the central membrane treatment system of the embodiment of the invention.
Fig. 5 is the right view of Fig. 4.
Fig. 6 is the vertical view of Fig. 4.
Embodiment
Referring to Fig. 2, principle of the present invention is that former water is carried out pre-treatment behind topping-up pump 1, then with entering reverse osmosis membrane 4 purification process behind high-pressure pump 3 adherence pressures, the pure water that is produced after aftertreatment for using, the waste water that is produced enter a group or more remove mycoderm or low desalination film 6 filters, the water after the filtration after aftertreatment for use.Among Fig. 2 remove mycoderm or low desalination film 6 is two groups, in actual use, the quantity of removing mycoderm or low desalination film 6 is not limited to two groups, looks the design requirements decision.
Water machine in the present embodiment takies machine room area 40M
2, being arranged in hospital's podium, school provides water, electricity to machine room, and the former water valve outlet that provides with school is a starting point, connects according to principle shown in Figure 2.Referring to Fig. 3, this water machine comprises pretreatment system, central membrane treatment system and after-treatment system, pretreatment system comprises by the interconnected raw water box 10 of pipeline, topping-up pump 1, FEF filter 2, SF water softener 13 and CF carbon filter 14, the central membrane treatment system comprises by the interconnected secondary filter 7 of pipeline, high-pressure pump 3 and reverse osmosis membrane 4 (present embodiment is a BW30-365 type reverse osmosis membrane), and be connected in one group of reverse osmosis membrane 4 wastewater outlets and remove mycoderm or low desalination film 6 (present embodiment is the MF film of 0.22 μ m), this wastewater outlet links to each other with the water-in that removes mycoderm or low desalination film 6 by variable valve 8, at reverse osmosis membrane 4, remove on mycoderm or the low desalination film 6 and be connected with scavenging pump 9.The pure water outlet of reverse osmosis membrane 4 is connected in pure water case 11-1, and pure water case 11-1 links to each other with two groups of transferpumps 12 and after-treatment system 5 again.The pure water outlet that removes mycoderm or low desalination film 6 is connected in pure water case 11-2, and pure water case 11-2 links to each other with two groups of transferpumps 12 and after-treatment system 5 with two groups again.
After-treatment system 5 is to aim at the pure water that prevents in pure water case 11-1 and the 11-2 because of the retention overlong time and cross the microbial growth that may occur slowly with respect to the pure water flow velocity in the pure water transfer lime and design.This after-treatment system has at first added sterilizer in pure water case 11-1 and 11-2 (present embodiment is the UV sterilizer, not shown in the figures), (present embodiment is the UV sterilizer to have added sterilizer in pure water case 11-1 and 11-2 exit again, not shown in the figures) and bacterium corpse block device (present embodiment is UF film bacterium corpse block device, and is not shown in the figures).Because this technology is that those skilled in the art are known, so repeat no more.
CM among Fig. 3 is that electricity is led probe, and P is the oiling tensimeter,
Be variable valve,
Be ball valve,
Be vacuum breaker, be prior art.
Referring to Fig. 4～Fig. 6, when specifically assembling, parts such as secondary filter 7, high-pressure pump 3, variable valve 8 are two groups, are designed to the using and the reserved to move simultaneously or alternate run, adapt to the special requirement of hospital.Reverse osmosis membrane 4 is installed in the reverse osmosis membrane pipe 15, removes mycoderm or low desalination film 6 and is installed on except that in mycoderm or the low desalination film film pipe 16.
Adopt the water treating method of this water machine as follows:
After tap water being inserted the raw water box 10 of a stainless steel, with topping-up pump 1 former water is delivered in the pretreatment system that comprises FEF filter 2, SF water softener 13, CF carbon filter 14 successively and carries out pre-treatment, wherein FEF filter 2 is at first removed the above impurity of 30 μ m and the doubtful granulometric impurity of can wadding a quilt with cotton, the filtered water of FEF filter 2 enters SF water softener 13 again and handles, reducing former water hardness, the water outlet of SF water softener 13 enters CF carbon filter 14 to remove surplus oxygen, the organism in the tap water and other are to the deleterious material of back level film.The filtered water of CF carbon filter 14 enters secondary filter 7 filtrations more then, to remove the impurity more than the 5 μ m in the former water at least.The water outlet of secondary filter 7 is again through high-pressure pump 3 adherence pressures, makes the water outlet pressure head of high-pressure pump 3 can conform to the optimum working pressure of reverse osmosis membrane 4.After having high-head filtered water and entering reverse osmosis membrane 4, under the promotion of influent pressure, the pure water outlet side that has 50% filtered water to enter reverse osmosis membrane 4 approximately becomes product water and is collected among the pure water case 11-1 standbyly, and the major function of reverse osmosis membrane 4 is to remove ion and thalline.Pure water among the pure water case 11-1 can require, have again the section office of organism requirements such as degerming to use for two existing deionizations after handling by two-way transferpump 12 and after-treatment system 5.Other wastewater outlet side that 50% filtering and concentrating water enters reverse osmosis membrane 4 of having an appointment enters degerming film or low desalination film 6 after regulating by variable valve 8.Because reverse osmosis membrane 4 has the dissolved salt of removal ionic function, comprising the dissolved salt ion from the effusive water of its wastewater outlet side compares in the water inlet of all interior impurity when entering reverse osmosis membrane 4, almost increased by one times, this also is that single water machines such as hospital department are with its basic reason of falling as discharge of wastewater.The major function of removing mycoderm or low desalination film 6 is to remove thalline, surveying effusive water from reverse osmosis membrane 4 wastewater outlets among the present invention enters except that behind mycoderm or the low desalination film 6, under the promotion of this water intrinsic pressure, organic impuritys such as bacterium are removed mycoderm or low desalination film 6 intercepts outside, pure water after the filtration all enters except that the water outlet side of mycoderm or low desalination film 6 and is collected among the pure water case 11-2 standby, after pure water among the pure water case 11-2 is handled by other two-way transferpump 12 and after-treatment system 5, can be for less demanding to the deionization thing, but wait the higher section office of organic content (as the surgery washing water etc.) use to degerming.Reverse osmosis membrane 4, remove the stifled problem of film that mycoderm or low desalination film 6 produce in operational process, can regularly or aperiodically solve its cleaning or back flushing by scavenging pump 9, this technology is the common process in the water treatment, repeats no more.
In the present embodiment remove mycoderm or low desalination film is the MF film, also can be the film that UF film, NF film or low pressure RO film etc. can play equivalent effect in addition.
Above embodiment only is one of example, and in actual use, according to the different demands of hospital or other industry, its concrete system configuration, specification and size all can be different, but ultimate principle shown in Figure 2 is suitable for all the time.
Claims (10)
1. medical zero waste water central membrane facture, it carries out pre-treatment to former water earlier, then water is sent into secondary filter filtration, high-pressure pump adherence pressure, entering reverse osmosis membrane filtration again concentrates, it is characterized in that: reverse osmosis membrane filtration concentrates pure water collection that the back produces in the pure water case, after aftertreatment for use; What reverse osmosis membrane filtration concentrated that waste water that the back produces enters a group or more removes mycoderm or low desalination film, is collected in one or more pure water case after the filtration, after aftertreatment for use.
2. medical zero waste water central membrane facture according to claim 1 is characterized in that: describedly remove mycoderm or low desalination film is MF film, UF film, NF film or low pressure RO film.
3. medical zero waste water central membrane facture according to claim 1 is characterized in that: described pre-treatment is after Jiang Yuanshui sends into raw water box, sends into FEF filter, SF water softener and CF carbon filter successively with topping-up pump again and handles.
4. medical zero waste water central membrane facture according to claim 1 and 2 is characterized in that: adopt scavenging pump to reverse osmosis membrane, remove mycoderm and low desalination film cleans or back flushing.
5. medical zero waste water central membrane facture according to claim 1 and 2, it is characterized in that: reverse osmosis membrane filtration concentrates and to enter degerming film or low desalination film after waste water that the back produces is regulated by variable valve, and the pure water case that links to each other with reverse osmosis membrane, with remove pure water case that mycoderm or low desalination film link to each other be difference independently.
6. medical zero waste water central membrane treating water machine, comprise pretreatment system, central membrane treatment system and after-treatment system, wherein the central membrane treatment system comprises by the interconnected secondary filter of pipeline, high-pressure pump and reverse osmosis membrane, it is characterized in that: what the wastewater outlet of described reverse osmosis membrane was connected with a group or more removes mycoderm or low desalination film.
7. medical zero waste water central membrane facture according to claim 6 is characterized in that: describedly remove mycoderm or low desalination film is MF film, UF film, NF film or low pressure RO film.
8. medical zero waste water central membrane treating water machine according to claim 6, it is characterized in that: described pretreatment system comprises by the interconnected raw water box of pipeline, topping-up pump, FEF filter, SF water softener and CF carbon filter.
9. according to claim 6 or 7 described medical zero waste water central membrane treating water machines, it is characterized in that: described reverse osmosis membrane, remove mycoderm or low desalination symphysis is connected to scavenging pump.
10. according to claim 6 or 7 described medical zero waste water central membrane treating water machines, it is characterized in that: described wastewater outlet links to each other with the water-in that removes mycoderm or low desalination film by variable valve, and the outlet of the pure water of reverse osmosis membrane, the pure water outlet that removes mycoderm or low desalination film are passed through the pure water case respectively, transferpump links to each other with after-treatment system.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100703558A CN101125694A (en) | 2007-07-26 | 2007-07-26 | Medical zero waste water central membrane processing method and water machine thereof |
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| CNA2007100703558A CN101125694A (en) | 2007-07-26 | 2007-07-26 | Medical zero waste water central membrane processing method and water machine thereof |
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| CNA2007100703558A Pending CN101125694A (en) | 2007-07-26 | 2007-07-26 | Medical zero waste water central membrane processing method and water machine thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198048A (en) * | 2010-03-24 | 2011-09-28 | 杭州欧亚流体技术开发有限公司 | Washing fluid production and supply system and method thereof |
| CN105000743A (en) * | 2015-07-29 | 2015-10-28 | 杭州欧亚流体技术开发有限公司 | System for producing medical water and method for producing medical water with system |
| CN105923812A (en) * | 2016-06-29 | 2016-09-07 | 中霖中科环境科技（安徽）股份有限公司 | Reverse osmosis water purification system |
| CN110877932A (en) * | 2019-12-24 | 2020-03-13 | 杭州之江水处理设备有限公司 | Two-stage five-membrane hemodialysis water production equipment and water production process |
-
2007
- 2007-07-26 CN CNA2007100703558A patent/CN101125694A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198048A (en) * | 2010-03-24 | 2011-09-28 | 杭州欧亚流体技术开发有限公司 | Washing fluid production and supply system and method thereof |
| CN105000743A (en) * | 2015-07-29 | 2015-10-28 | 杭州欧亚流体技术开发有限公司 | System for producing medical water and method for producing medical water with system |
| CN105923812A (en) * | 2016-06-29 | 2016-09-07 | 中霖中科环境科技（安徽）股份有限公司 | Reverse osmosis water purification system |
| CN110877932A (en) * | 2019-12-24 | 2020-03-13 | 杭州之江水处理设备有限公司 | Two-stage five-membrane hemodialysis water production equipment and water production process |
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