CN101412551A - Enhanced flocculation-hyperfiltration combined process and apparatus for emergency handling of drinking water - Google Patents
Enhanced flocculation-hyperfiltration combined process and apparatus for emergency handling of drinking water Download PDFInfo
- Publication number
- CN101412551A CN101412551A CNA2008102026763A CN200810202676A CN101412551A CN 101412551 A CN101412551 A CN 101412551A CN A2008102026763 A CNA2008102026763 A CN A2008102026763A CN 200810202676 A CN200810202676 A CN 200810202676A CN 101412551 A CN101412551 A CN 101412551A
- Authority
- CN
- China
- Prior art keywords
- flocculation
- ultra
- water
- pump
- ultrafiltration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 235000020188 drinking water Nutrition 0.000 title claims abstract description 21
- 239000003651 drinking water Substances 0.000 title claims abstract description 21
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nMzAwcHgnIGhlaWdodD0nMzAwcHgnIHZpZXdCb3g9JzAgMCAzMDAgMzAwJz4KPCEtLSBFTkQgT0YgSEVBREVSIC0tPgo8cmVjdCBzdHlsZT0nb3BhY2l0eToxLjA7ZmlsbDojRkZGRkZGO3N0cm9rZTpub25lJyB3aWR0aD0nMzAwLjAnIGhlaWdodD0nMzAwLjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PScxMDAuNScgeT0nMTcwLjAnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6NDBweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5IPC90ZXh0Pgo8dGV4dCB4PScxMjYuMScgeT0nMTg2LjAnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6MjZweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID4yPC90ZXh0Pgo8dGV4dCB4PScxMzguMCcgeT0nMTcwLjAnIGNsYXNzPSdhdG9tLTAnIHN0eWxlPSdmb250LXNpemU6NDBweDtmb250LXN0eWxlOm5vcm1hbDtmb250LXdlaWdodDpub3JtYWw7ZmlsbC1vcGFjaXR5OjE7c3Ryb2tlOm5vbmU7Zm9udC1mYW1pbHk6c2Fucy1zZXJpZjt0ZXh0LWFuY2hvcjpzdGFydDtmaWxsOiNFODQyMzUnID5PPC90ZXh0Pgo8L3N2Zz4K data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000005189 flocculation Methods 0.000 claims abstract description 57
- 230000016615 flocculation Effects 0.000 claims abstract description 57
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 239000012528 membrane Substances 0.000 claims description 16
- 238000003379 elimination reaction Methods 0.000 claims description 7
- 241000894006 Bacteria Species 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 235000020679 tap water Nutrition 0.000 claims description 6
- 239000008399 tap water Substances 0.000 claims description 6
- 230000001264 neutralization Effects 0.000 claims description 5
- 230000001954 sterilising Effects 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K Iron(III) chloride Chemical compound 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Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
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- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000000249 desinfective Effects 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract description 2
- 239000008394 flocculating agent Substances 0.000 abstract 5
- 239000012530 fluid Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
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- 230000001681 protective Effects 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
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- 238000003911 water pollution Methods 0.000 description 1
Abstract
The invention belongs to the technical field of environmental protection as well as water treatment technology and equipment, and in particular relates to an enhanced flocculation-ultrafiltration combined process for emergency treatment on drinking water and a device thereof. Raw water is added into a flocculation reaction device through a raw water intake pump, a flocculating agent is added into the flocculation reaction device through a flocculating agent dosing pump simultaneously, a stirrer stirs to ensure that the flocculating agent is fully mixed with the raw water, and the stirring time is between 20 and 30min; particulate matters with relatively larger particle sizes in a supernatant fluid are filtered through a grid pre-filtering device to play a role of protecting an ultrafiltration device; and pretreated output water is then added into the ultrafiltration device through an ultrafiltration intake pump and is sterilized by an ultraviolet disinfection device finally, and output water satisfies the standard drinking water. The device consists of the raw water intake pump, the flocculating agent dosing pump, a flocculating agent dosing tank, the flocculation reaction device, the stirrer, the grid pre-filtering device, the ultrafiltration intake pump, the ultrafiltration device, a recoil pump, an ultraviolet disinfection lamp, and various connecting pipelines. In the invention, the process is simple, and the device has the advantages of high integration degree, small volume, convenient and quick movement, simple operation, and quick treatment.
Description
Technical field
The invention belongs to environment protection, water technology and equipment technical field, be specifically related to a kind of enhanced flocculation-hyperfiltration combined process and device thereof that drinking water emergency is handled that be used for.
Background technology
In recent years, because of the discharging of Chemicals with to leak the sudden water pollution accident that causes continuous, the emergency processing measure of drinking water pollution causes people's great attention, when accident takes place, and a kind of water treatment method of tap water quickly and easily of needs.The embrane method water technology is water treatment field one of most important technological contribution during the last ten years recently, and ultrafiltration is again a kind of technology that people relatively pay close attention in the embrane method water technology.Ultrafiltration is to be one of membrane separation technique of impellent with pressure.Be separated into purpose with macromole and small molecules, membrane pore size is between 20-1000A °.With common process relatively, advantage such as ultrafiltration has turbid rate height, and stable effluent quality is reliable, effectively removes pathogenic micro-organism, and floor space is little.Forms such as that ultra-filtration equipment has is board-like, tubular type (interior pressure shell and tube and external pressure bundled tube), rolling, tubular fibre formula.With respect to other forms of ultra-filtration equipment, advantage such as hollow fiber membrane ultrafiltration device (film) has pack density height in the molten device of unit, and floor space is little.
But,, make that removal dissolved organic matter, metal ion, solvability salt and some small organic molecule effects are relatively poor because the molecular weight cut-off of ultra-filtration membrane is big.So many experts and scholars pass through the combination process of research ultrafiltration and other technologies to improve the removal effect to such pollution substance.Wherein enhanced flocculation-hyperfiltration combined process is existing at home and abroad studies, and has also obtained certain achievement.The enhanced coagulation mechanism of action is similar to conventional coagulation mechanism, comprises that mainly compression double electric layer effect, absorption charge neutrality effect, absorption one bridging action, precipitation net catch effect etc.Enhanced coagulation can be realized by improving coagulating agent consumption, change coagulating agent kind, adjustment water temperature, adjusting and practical high-molecular coagulant adopting.Enhanced coagulation-ultrafiltration combination process mainly is to make small organic molecule form micro-floccule by throwing out, improved its separation property, then, these micro-floccules are trapped during by ultra-filtration membrane, can condense small organic molecule in the water and larger molecular organics is removed to greatest extent thereby make.
With enhanced flocculation-ultrafiltration technology the polluted water of burst is handled rapidly, simple flow has powerful turbidity removal, and degerming removes objectionable constituent such as solvability salt, neutral molecule, organism.Guarantee that place, zone of pollution personnel's drinking water safety can access abundant guarantee when the burst pollution incident takes place.And existing complex treatment process, equipment is too huge, and the reaction of reply burst accident is comparatively slow.
The related invention of the technical equipment that drinking water emergency is handled occurs.People's such as Wang Jiuru drinking water emergency purifying process and device thereof, contaminated former water enters flocculator, settling vessel, strainer, adsorber by water pump and carries out pre-treatment, enters the reverse osmosis cleaner then and thoroughly purifies and obtain standard compliant tap water (CN1935675).The drinking water emergency service truck that also has king's scholar invention of a specified duration, its structure are that the water pump, flocculator, settling vessel, strainer, adsorber, reverse osmosis cleaner and the water tank tube road that are fixed in the load wagon are connected to a water-purifying apparatus (CN200951963).The present invention is with respect to above invention, and preprocessing process has omitted settling vessel, strainer, and adsorber only need flocculation apparatus, so technology is simple, and volume is little, moves fastly, operate simple and easyly, handles quick.And with respect to this class high-pressure membrane treatment facility of reverse osmosis, the ultrafiltration apparatus operating pressure is low, and therefore relative energy efficient is to be adapted under the contingency condition, under the abominable in the open air situation, requires to make quick response and uses water treating equipment temporarily.
Summary of the invention
The object of the present invention is to provide a kind of enhanced flocculation-hyperfiltration combined process and device that drinking water emergency is handled that be used for.
The enhanced flocculation-hyperfiltration combined process that is used for the drinking water emergency processing that the present invention proposes, concrete steps are as follows:
Former water adds in the flocculation reaction device 2 through former water intake pump a, and flocculation agent adds in the flocculation reaction device 2 by flocculation agent dosing pump b simultaneously, and agitator c stirs and makes flocculation agent and former water thorough mixing, and churning time is 20min～30min; Supernatant liquor wherein plays a protective role to ultra-filtration equipment 4 through the relatively large particulate matter of graticule mesh pre-filtrating equipment 3 elimination particle diameters; Add ultra-filtration equipment 4 by ultrafiltration intake pump e again through above-mentioned pretreated water outlet, according to the characteristic of ultra-filtration membrane, the bacterium in the elimination water, organism, neutral molecule, finely ground particle substance, at last by ultra violet sterilizer 5 sterilizations, the standard compliant tap water of water outlet.
Among the present invention, the filter type that described ultra-filtration equipment 4 adopts is an end-filtration, and operation scheme is: at first ultrafiltration moves 60min, and the 2min of recoil operation afterwards is square impact operation 2min again.Above procedure auto-control, circulation is carried out repeatedly.The treatment capacity scope: normal conditions can be by design membrane flux 60L/m
2/ h moves, and filters operation by full dose usually.The backwash flux is scope 110～200L/m
2/ h.
Among the present invention, described flocculation agent adopts iron trichloride.
Enhanced flocculation-the ultra-filtration equipment that is used for the drinking water emergency processing that the present invention proposes, by flocculation agent dosing tank 1, flocculation reaction device 2, graticule mesh pre-filtrating equipment 3, ultra-filtration equipment 4, ultra violet sterilizer 5, former water intake pump a, flocculation agent dosing pump b, ultrafiltration intake pump e, recoil pump d and each connecting pipeline are formed, wherein, former water intake pump a links to each other with flocculation reaction device 2 by pipeline, flocculation agent dosing pump b is fixed in flocculation agent dosing tank 1 top, flocculation agent dosing tank 1 connects flocculation reaction device 2 by flocculation agent dosing pump b and pipeline thereof, the water outlet of flocculation reaction device 2 connects graticule mesh pre-filtrating equipment 3 by pipeline, graticule mesh pre-filtrating equipment 3 connects ultra-filtration equipment 4 by ultrafiltration intake pump e and pipeline thereof, ultra-filtration equipment 4 connects ultra violet sterilizer 5, ultra-filtration equipment 4 bottoms one side connects recoil pump d, and ultra-filtration equipment 4 is carried out the intermittent type back flushing; Be provided with agitator c in the flocculation reaction device 2.
Beneficial effect of the present invention is:
1. add the enhanced flocculation step in drinking water emergency is handled, add the flocculation agent iron trichloride, can kill the bacterium in the water effectively, and can remove the colloidalmaterial in anhydrating, particulate matter also can be alleviated the pollution that underwater gold belongs to material and radioactive substance.
2. enter ultra-filtration equipment again at the water after coagulation pretreatment; can play a protective role to ultra-filtration equipment on the one hand; slow down the pollution of ultra-filtration membrane effectively; on the other hand; the further pollutent in the filtered water utilizes the characteristic of holding back of ultra-filtration membrane, removes the organic pollutant in anhydrating; bacterium, colloidalmaterial etc.After uv sterilisation is further guaranteed safety of drinking water.
3. ultrafiltration apparatus belongs to the low-pressure membrane treatment facility, and it is relatively low to consume energy.
Complete assembly technology is simple, installs integrated degree height, and volume is little, moves fastly, operate simple and easyly, handle fast, and be to be adapted under the contingency condition, under the abominable in the open air situation, requirement is made quick response and is used water treating equipment temporarily.
Description of drawings
Fig. 1 handles process integration device schema for this drinking water emergency.
Fig. 2 handles the concrete operational scheme of ultra-filtration equipment in the process integration for this drinking water emergency.
Number in the figure: 1 is the flocculation agent dosing tank, and 2 is flocculation reaction device, and 3 is the graticule mesh pre-filtrating equipment, and 4 is ultra-filtration equipment, 5 is ultra violet sterilizer, and a is former water intake pump, and b is the flocculation agent dosing pump, and c is an agitator, d is a recoil pump, and e is the ultrafiltration intake pump, and f is a spoil disposal.
Embodiment
Further specify the present invention below by embodiment.
Embodiment 1: the technical scheme that realizes this technology invention mainly is: former water → flocculation reaction → graticule mesh pre-filtering → ultrafiltration water purification uv sterilisation effect → water outlet.Concrete grammar is that former water adds in the flocculation tank through former water intake pump; flocculation agent iron(ic) chloride 7mg/L adds in the flocculation tank with peristaltic pump simultaneously; agitator stirs and makes flocculation agent and former water thorough mixing; churning time is controlled between 20min～30min; supernatant liquor plays a protective role to ultra-filtration equipment through the relatively large particulate matter of graticule mesh pre-filtrating equipment elimination particle diameter.Add ultra-filtration equipment by the ultrafiltration intake pump again through above-mentioned pretreated water outlet, according to the characteristic of ultra-filtration membrane, the bacterium in the elimination water, organism, neutral molecule, finely ground particle substance at last by the ultraviolet lamp sterilization, guarantees to obtain standard compliant tap water.
In accompanying drawing 1, realize that the device that this drinking water emergency treatment process is adopted mainly is: former water intake pump, the flocculation agent dosing pump, flocculation agent dosing tank, flocculation reaction device, agitator, the graticule mesh pre-filtrating equipment, ultrafiltration intake pump, ultra-filtration equipment, recoil pump, ultraviolet disinfecting and each connecting pipeline are formed.Water inlet is through former water intake pump a suction flocculation reaction device 2, flocculation agent adds flocculation reaction device 2 by flocculation agent dosing pump b by flocculation agent dosing tank 1 simultaneously, stir 20～30min through agitator c then, water outlet is removed the particle diameter larger particles through graticule mesh pre-filtering 3, add ultra-filtration equipment 4 by ultrafiltration intake pump e again through above-mentioned pretreated water outlet, characteristic according to ultra-filtration membrane, bacterium in the elimination water, organism, neutral molecule, finely ground particle substance by ultraviolet lamp 5 sterilizations, guarantees to obtain standard compliant tap water at last.
What dotted line was represented in the accompanying drawing 1 is the backwash process of ultrafiltration system, too fast in order to prevent Pollution of Ultrafiltration Membrane, therefore in per cycle of operation the backwash process decelerating membrane pollution is arranged.In accompanying drawing 1, water outlet is squeezed in the ultra-filtration equipment 4 through recoil pump d, and recoil water imports in the flocculation reaction device at last, regularly spoil disposal.
Accompanying drawing 2 has been represented the operational process of ultra-filtration equipment, it at first is the ultrafiltration operational process, be 60min working time, be backwash process (4min altogether) after this, wherein the recoil time is 2min, the purpose of recoil is to make the cake layer that forms in the ultrafiltration operational process loosening, along being 2min towards the time, is to wash away loosening cake layer along the purpose of dashing.
Claims (4)
1. one kind is used for the enhanced flocculation-hyperfiltration combined process that drinking water emergency is handled, and it is characterized in that concrete steps are as follows:
Former water adds in the flocculation reaction device (2) through former water intake pump (a), and flocculation agent adds in the flocculation reaction device (2) by flocculation agent dosing pump (b) simultaneously, and agitator (c) stirs and makes flocculation agent and former water thorough mixing, and churning time is 20min～30min; Supernatant liquor wherein is through the relatively large particulate matter of graticule mesh pre-filtrating equipment (3) elimination particle diameter; Add ultra-filtration equipment (4) by ultrafiltration intake pump (e) again through above-mentioned pretreated water outlet, characteristic according to ultra-filtration membrane, bacterium in the elimination water, organism, neutral molecule, finely ground particle substance are at last by ultra violet sterilizer (5) sterilization, the standard compliant tap water of water outlet.
2, the enhanced flocculation-hyperfiltration combined process that is used for the drinking water emergency processing according to claim 1, it is characterized in that the filter type that described ultra-filtration equipment (4) adopts is an end-filtration, operation scheme is: at first ultrafiltration moves 60min, the 2min of recoil operation afterwards is square impact operation 2min again; Above procedure auto-control, circulation is carried out repeatedly, and the backwash flux is scope 110～200L/m
2/ h.
3, the enhanced flocculation-hyperfiltration combined process that is used for the drinking water emergency processing according to claim 1 is characterized in that described flocculation agent adopts iron trichloride.
4, a kind of enhanced flocculation-ultra-filtration equipment that is used for the drinking water emergency processing, by flocculation agent dosing tank (1), flocculation reaction device (2), graticule mesh pre-filtrating equipment (3), ultra-filtration equipment (4), ultra violet sterilizer (5), former water intake pump (a), flocculation agent dosing pump (b), ultrafiltration intake pump (e), recoil pump (d) and each connecting pipeline are formed, it is characterized in that former water intake pump (a) links to each other with flocculation reaction device (2) by pipeline, flocculation agent dosing pump (b) is fixed in flocculation agent dosing tank (1) top, flocculation agent dosing tank (1) connects flocculation reaction device (2) by flocculation agent dosing pump (b) and pipeline thereof, the water outlet of flocculation reaction device (2) connects graticule mesh pre-filtrating equipment (3) by pipeline, graticule mesh pre-filtrating equipment (3) connects ultra-filtration equipment (4) by ultrafiltration intake pump (e) and pipeline thereof, ultra-filtration equipment (4) connects ultra violet sterilizer (5), ultra-filtration equipment (4) bottom one side connects recoil pump (d), and ultra-filtration equipment (4) is carried out the intermittent type back flushing; Be provided with agitator (c) in the flocculation reaction device (2).
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| CNA2008102026763A CN101412551A (en) | 2008-11-13 | 2008-11-13 | Enhanced flocculation-hyperfiltration combined process and apparatus for emergency handling of drinking water |
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| CN102139972A (en) * | 2011-02-15 | 2011-08-03 | 北京新源国能科技有限公司 | Sewage treatment method and device |
| CN101531432B (en) * | 2009-04-30 | 2011-10-05 | 北京新创宏力科技发展有限公司 | Movable type general-purpose small sewage treatment equipment |
| CN102515411A (en) * | 2011-11-29 | 2012-06-27 | 西安翔德生物科技有限公司 | Biological sewage treatment system |
| CN103253787A (en) * | 2012-02-17 | 2013-08-21 | 上海市政工程设计研究总院（集团）有限公司 | Season metal polluted low-turbidity high-alga raw water strengthening treatment apparatus and technology thereof |
| CN104724855A (en) * | 2015-03-26 | 2015-06-24 | 中国华电工程(集团)有限公司 | Joint micro flocculation and ultrafiltration water treatment method and system of low-temperature and low-turbidity water |
| CN108083419A (en) * | 2017-12-06 | 2018-05-29 | 长沙中联重科环境产业有限公司 | water purification system |
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| CN111675376A (en) * | 2020-06-09 | 2020-09-18 | 安徽名膜环境技术有限公司 | Integrated intensive distribution type drinking water purification and supply process and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101531432B (en) * | 2009-04-30 | 2011-10-05 | 北京新创宏力科技发展有限公司 | Movable type general-purpose small sewage treatment equipment |
| CN102139972A (en) * | 2011-02-15 | 2011-08-03 | 北京新源国能科技有限公司 | Sewage treatment method and device |
| CN102515411A (en) * | 2011-11-29 | 2012-06-27 | 西安翔德生物科技有限公司 | Biological sewage treatment system |
| CN103253787A (en) * | 2012-02-17 | 2013-08-21 | 上海市政工程设计研究总院（集团）有限公司 | Season metal polluted low-turbidity high-alga raw water strengthening treatment apparatus and technology thereof |
| CN103253787B (en) * | 2012-02-17 | 2016-06-01 | 上海市政工程设计研究总院（集团）有限公司 | The low turbid algae concentrated feeding water strengthening and processing device of seasonal metallic pollution and technique thereof |
| CN104724855A (en) * | 2015-03-26 | 2015-06-24 | 中国华电工程(集团)有限公司 | Joint micro flocculation and ultrafiltration water treatment method and system of low-temperature and low-turbidity water |
| CN108083419A (en) * | 2017-12-06 | 2018-05-29 | 长沙中联重科环境产业有限公司 | water purification system |
| CN110156199A (en) * | 2018-02-12 | 2019-08-23 | 青岛海尔洗衣机有限公司 | A kind of washing machine wastewater recovery system and processing method |
| CN111675376A (en) * | 2020-06-09 | 2020-09-18 | 安徽名膜环境技术有限公司 | Integrated intensive distribution type drinking water purification and supply process and device |
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Open date: 20090422 |