CN203781935U - Strong-pulse micro-wastewater discharge water purification system - Google Patents

Strong-pulse micro-wastewater discharge water purification system Download PDF

Info

Publication number
CN203781935U
CN203781935U CN201420099618.3U CN201420099618U CN203781935U CN 203781935 U CN203781935 U CN 203781935U CN 201420099618 U CN201420099618 U CN 201420099618U CN 203781935 U CN203781935 U CN 203781935U
Authority
CN
China
Prior art keywords
water
reverse osmosis
osmosis membrane
cleaning systems
pipeline
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.)
Expired - Lifetime
Application number
CN201420099618.3U
Other languages
Chinese (zh)
Inventor
杨瀚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHENZHEN WATERFROM TECHNOLOGY Ltd
Original Assignee
SHENZHEN WATERFROM TECHNOLOGY Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHENZHEN WATERFROM TECHNOLOGY Ltd filed Critical SHENZHEN WATERFROM TECHNOLOGY Ltd
Priority to CN201420099618.3U priority Critical patent/CN203781935U/en
Application granted granted Critical
Publication of CN203781935U publication Critical patent/CN203781935U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The utility model discloses a strong-pulse micro-wastewater discharge water purification system. The system comprises a water inlet tee joint (1), a pre-filter set, a booster pump (13), a reverse osmosis membrane filter (15), and an activated carbon post-filter (19) which are sequentially connected by pipelines, wherein the outlet of the activated carbon post-filter is connected with a water outlet (20) by a high-pressure switch (18), the outlet of the reverse osmosis membrane filter is connected with a water storage pressure barrel (4) by a pipeline, wherein the outlet of the reverse osmosis membrane filter is provided with a wastewater discharge pipeline, a pulse electromagnetic valve (14) is arranged on the wastewater discharge pipeline; and the water storage pressure barrel refluxes a little amount of purified water by a pipeline and a one-way valve (22) to the front end of the reverse osmosis membrane filter (15) for soaking the reverse osmosis membrane after the water production process is completed. According to the strong-pulse micro-wastewater discharge water purification system disclosed by the utility model, since the two measures, namely, discharging pollution and flushing reverse osmosis membranes by rapid transient pulse and flushing, soaking and protecting reverse osmosis membranes by refluxing purified water, are adopted, the utilization ratio of raw water is substantially increased to above 75%.

Description

The micro-discharge of wastewater water cleaning systems of a kind of strong pulse
Technical field
The utility model relates to water-purifying machine, relates in particular to the micro-discharge of wastewater water cleaning systems of a kind of strong pulse.
Background technology
IV class underground water mainly be take as drinking water source with III class surface water, Rural areas in China most cities, along with the aggravation of polluting, and the problems such as two worms (giardia lamblia stiles, Cryptosporidium), blue-green algae, heavy metals exceeding standard, town and country drinking water safety in serious threat.Therefore, surface water, underground water must could be used as tap water through purifying.Family expenses, commercial drinking water treatment technological core are mainly membrane filtration techniques now.Wherein a kind of is ultrafiltration membrance filter, pore size filter is 0.01 micron, can remove whole muddy things (as silt, iron rust etc.), pathogenic microorganism is (as parasite, bacterium, virus etc.), also can remove most larger molecular organics, do not need electricity consumption simultaneously, do not produce waste water, relatively be applicable to the good city of southern china water-quality ratio, but because removing the organic compound in water, radioactive radon, multiple harmful or carcinogenic substance and the lead such as arsenic, the heavy metal ion such as mercury, in the poor northern area of water-quality ratio and vast rural area, just cannot meet the drinking water treatment demand of safety and Health.Another kind is reverse osmosis membrane filtration, and filtration openings footpath is 0.0001 micron, can remove all objectionable impuritiess in water completely, only retains water molecules output pure water, and suitability is wide, at the vast both urban and rural area of China, is the main force of water treatment.But with the water purification machine of reverse osmosis membrane, because the principle of work of reverse osmosis membrane needs to discharge a large amount of waste water (condensed water) in the process of producing pure water, be subject to the impact of water temperature, water quality, a pure water of output need to emit 3-5 part waste water.The present situation of the surprising waste water of this output is to require to deviate from mutually with the domestic scientific development of advocating and " energy-conservation, consumption reduction " of building a conservation-minded society.
Although domestic a lot of people carries out secondary returning use the waste water of traditional water purification machine discharge, the water quality of this recovery and the mode of recovery all the time can not be fully up to expectations.Within nearly 2 years, also there is partially purifying water device producer to release " few waste water " water purification machine, principle is the wastewater streams of water process discharge processed to be got back to reverse osmosis membrane front end recycle, reverse osmosis membrane is moved for a long time under high-concentration waste water surrounding, the quality that has reduced pure water output has also been accelerated the stifled speed of dirt of reverse osmosis membrane simultaneously, and shortened dramatically the work-ing life of reverse osmosis membrane.Practice is recognized us: the common ultrafilter of " water-saving " is because use limitation to make it be difficult to cover each area of Chinese complicated water quality, and the RO water purification machine of " water wasting " is more not suitable for the Chinese spread in " lack of water ".Therefore, must carry out " water-saving technology " innovation and products innovation.
Summary of the invention
The purpose of this utility model is the defect existing for above-mentioned prior art, provides a kind of strong pulse micro-discharge of wastewater water cleaning systems.
The micro-discharge of wastewater water cleaning systems of strong pulse of the utility model design comprises: the inlet triplet for water connecting by pipeline successively, fore filter group, topping-up pump, reverse osmosis membrane filt and Postposition carbon filter, described Postposition carbon filter outlet is connected with water outlet by high-voltage switch gear, import is connected with a Pressured water tank by pipeline, wherein, described reverse osmosis membrane filt outlet is provided with discharge of wastewater pipeline, and this pipeline is provided with an impulse electromagnetic valve; Described Pressured water tank by a pipeline and check valve reflux micro-pure water to the front end of reverse osmosis membrane filt for after water processed, soak reverse osmosis membrane.
Described fore filter group comprises PPF candle filter, active carbon filter core strainer and the PPF candle filter connecting successively.
In one embodiment, described high-voltage switch gear front end arranges a check valve.Between described reverse osmosis membrane filt and post active carbon filter for molten, be provided with a water flow sensing unit.Between described topping-up pump and reverse osmosis membrane filt, be provided with a four-sided valve.Between described PPF strainer and activated charcoal filter, be provided with an entering water electromagnetic valve.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model is by reverse osmosis membrane is rinsed in momentary impulse blowdown rapidly, pure water refluxes and rinses two measures of protection reverse osmosis membrane of soaking; in the situation that guaranteeing that pure water high quality output is not damaged reverse osmosis membrane again simultaneously; make the waste water of water purification machine and the ratio of pure water can be by the waste water 3 of common water purification machine: pure water 1 is significantly brought up to waste water 1: pure water more than 3 (can be accomplished waste water 1 according to water quality is different: pure water is more than 6), former water use efficiency be from less than 25% significantly bring up to more than 75%.
2, the utility model is by adopting bi-stable pulse electromagnetic valve and the large flow reverse osmosis membrane of not power consumption, both urban and rural area at tap water hydraulic higher than 0.2 MPa, can municipal power supply, without topping-up pump, realize water purification machine without micro-discharge of wastewater output pure water under electric condition, in the situation that ensureing water quality safety, more accomplish energy-saving and emission-reduction, meet the requirement that China builds a conservation-minded society.
Accompanying drawing explanation
Fig. 1 is common pure water mechanism Water flow-path figure;
Fig. 2 is the Water flow-path figure processed of part return of waste water water purification machine;
Fig. 3 is the system schematic of the utility model one embodiment;
Fig. 4 is the system schematic of the utility model the second embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
The filtering accuracy of reverse osmosis membrane (RO film) water purification technology, almost can filtering water all impurity and salt in addition up to 0.0001 micron.But the negative effect of high precision RO film is it is very easily blocked up by dirt, for preventing that RO film from being blocked up by dirt, guarantee that RO film produces the patency of film in water process, the RO film of RO water purification machine must guarantee that when producing pure water enough former water rinses RO film surface, so can produce a large amount of waste water.The RO pleurodiaphragmatic in terspace water use efficiency recommendation that the Dow Chemical Company of famous American produces is 15%.At home, water purification machine producer is used more Korea S " Saehan film ", Japan's " eastern beautiful film " and domestic " Correspondent film " etc., and the former water use efficiency of recommendation is also in 25% left and right.
Fig. 1 shows water cleaning systems of the prior art, comprise: the inlet triplet for water 1 connecting by pipeline successively, fore filter group (being formed by the PPF candle filter 8 connecting successively, active carbon filter core strainer 10 and PPF candle filter 11), topping-up pump 13, reverse osmosis membrane filt 15, high-voltage switch gear 18, Postposition carbon filter 19, Postposition carbon filter outlet and water outlet 20, for example tap connects, and high-voltage switch gear 18 outlets are connected with a Pressured water tank 4 by pipeline simultaneously.
As shown in Figure 1, the Water flow-path processed of common water purification machine is that by the pipe core of film, the pure water end through reverse osmosis membrane filt flows out after reverse osmosis membrane filtration for water after pressurization, waste water end keeps uninterrupted discharge of wastewater, waste water proportional valve 16 by a constant rate is discharged waste water, after the discharge of accumulation for some time waste water ratio, add 17 discharges of Wastewater by Electric magnet valve, to guarantee to remove the accumulation of dirt on film.This Water flow-path processed, former water use efficiency is in 25% left and right.
As shown in Figure 2, " few waste water " pure water mechanism Water flow-path of Some Domestic producer is in the flow process of common water purification machine, to have increased a return of waste water device, part waste water is introduced to the entrance of reverse osmosis membrane filt 15, removed the waste water proportional valve 16 of constant rate, with magnetic valve 17, carry out discontinuous blowdown, make the cycling utilization of wastewater of discharge, reduced discharge of wastewater, it is 50% even higher that former water use efficiency is brought up to, but reverse osmosis membrane can not guarantee the output quality of pure water under more and more higher high-concentration waste water surrounding, simultaneously very large to the damage of reverse osmosis membrane, stifled the increasing the weight of of dirt of film, greatly shorten work-ing life.
Fig. 3 is the water cleaning systems that the utility model one embodiment shows, comprise: the inlet triplet for water 1 connecting by pipeline successively, fore filter group, topping-up pump 13, reverse osmosis membrane filt 15, Postposition carbon filter 19, Postposition carbon filter outlet is connected with water outlet 20 by high-voltage switch gear 18, and the outlet of reverse osmosis membrane filt is connected with a Pressured water tank 4 by pipeline simultaneously.Wherein, reverse osmosis membrane filt outlet is provided with discharge of wastewater pipeline, and this pipeline is provided with an impulse electromagnetic valve 14; Pressured water tank 4 by a pipeline and check valve 22 reflux micro-pure water to the front end of reverse osmosis membrane filt 15 for after water processed, immersion reverse osmosis membrane.
As shown in Figure 3, the Water flow-path processed the utility model proposes has been removed the waste water proportional valve of constant rate, by common Wastewater by Electric magnet valve use instead unlatching, making time at 0.1 second with interior impulse electromagnetic valve 14, use discontinuous pulse sewage discharge, by magnetic valve, open fast the closed instantaneous flushing reverse osmosis membrane of the current surface producing rapidly, remove fast the dirt precipitation accumulating on film, with few wash water amount, reach the object of effective cleaning reverse osmosis membrane, significantly reduced the generation of waste water.Compare with common water purification machine, adopt the blowdown of momentary impulse rapidly of the utility model system, the ratio of waste water and pure water can be by waste water 3: pure water 1 is significantly brought up to waste water 1: pure water more than 3 (can be accomplished waste water 1 according to water quality is different: pure water is more than 6), and former water use efficiency is from significantly bringing up to more than 75% less than 25%.
Wherein, the concrete flushing operation time is as follows: remove magnetic valve unlatching, making time, each time of rinsing (0.3 second-0.5 second was) to produce powerful rapidly current between 0.1 second to 1 second, the too short dirt precipitation that can not remove completely on film of single flush time, time is oversize can not produce powerful current, waste water and also developing result not good.Rinse interval time between 15 seconds to 45 seconds at every turn.The instrument that can be used as the ratio that regulates pure water and waste water this interval time, when the good area of water quality or the ultralow discharge of wastewater of customer requirement, can extend to reach interval time the object of water-saving.According to continuous operation output pure water, reach 10 tons of above tests, in former water TDS value 500, with interior area, can accomplish pure water 5: the phenomenon that water flow obviously reduces does not appear in the effect of waste water 1 and reverse osmosis membrane.In former water TDS value lower than 300 with interior area, can accomplish pure water 6: the effect of waste water 1, even higher.Like this, in the good southern area of Chinese water quality, can be higher heighten pure water output, turn down discharge of wastewater, in the situation that big area is used, save a large amount of valuable water sources.
As shown in Figure 3, the utility model has increased pure water reflux, at external placed type pressure pot 4 or directly drink the water outlet of the built-in filer element type pressure pot of machine and punish out a water pipe, by check valve 22, pure water is back to reverse osmosis membrane filt 15 front ends, after water processed, pure water is transported to and in reverse osmosis membrane filt, soaks reverse osmosis membrane.Simultaneously at high-voltage switch gear 18 front ends, increase a check valve 5, when preventing after water processed pure water backflow because high-voltage switch gear decompression causes topping-up pump frequent starting.The principle that increases this reflux is: at reverse osmosis membrane rapidly during momentary impulse blowdown, waste water ratio significantly declines, but the dense water of reverse osmosis membrane blowdown end accumulation is more, that TDS value rises is large (particularly high regional of former water TDS value or promote former water conservancy use 75% more obvious when above).At full water processed, stop producing water after for some time, it is higher that the static penetration theory of reverse osmosis membrane can make pure water bring out water TDS value, is unfavorable for the output of high quality pure water.By this pure water reflux, reverse osmosis membrane is after water processed finishes, and via clean pure water rinsing, immersion, the TDS value of waste water end significantly declines, and significantly reduces to the possibility of pure water end infiltration, has also protected reverse osmosis membrane simultaneously.Compare with " few waste water " water purification machine that other return of waste waters reach water-saving object to reverse osmosis membrane front end, not only do not shorten and extended on the contrary the work-ing life of reverse osmosis membrane, and the high-quality output of pure water is also more secure.
Fig. 4 shows second embodiment of the present utility model.In this embodiment, can increase in pure water water side a water flow sensing unit 7, at reverse osmosis membrane filt 15 water inlet front ends, increase a four-sided valve 6 simultaneously, with computer board, control water circuit system, entering water electromagnetic valve and blowoff electromagnetic valve all adopt impulse electromagnetic valve and the large flow reverse osmosis membrane of not power consumption simultaneously, both urban and rural area at tap water hydraulic higher than 0.2 MPa, can municipal power supply, without topping-up pump, realize water purification machine without micro-discharge of wastewater output pure water under electric condition, more accomplish energy-saving and emission-reduction, meet the requirement that China builds a conservation-minded society.
Above-described embodiment is only for illustrating embodiment of the present utility model.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and variation, these distortion and variation all should belong to protection domain of the present utility model.

Claims (10)

1. the micro-discharge of wastewater water cleaning systems of strong pulse, comprise: the inlet triplet for water connecting by pipeline successively (1), fore filter group, topping-up pump (13), reverse osmosis membrane filt (15) and Postposition carbon filter (19), described Postposition carbon filter outlet is connected with water outlet (20) by high-voltage switch gear (18), the outlet of reverse osmosis membrane filt is connected with a Pressured water tank (4) by pipeline simultaneously, it is characterized in that, described reverse osmosis membrane filt outlet is provided with discharge of wastewater pipeline, this pipeline is provided with an impulse electromagnetic valve (14), described Pressured water tank is by a pipeline and check valve (22) front end of micro-pure water to reverse osmosis membrane filt (15) that reflux.
2. water cleaning systems as claimed in claim 1, is characterized in that: described high-voltage switch gear (18) front end arranges a check valve (5).
3. water cleaning systems as claimed in claim 1, is characterized in that: described fore filter group comprises PPF candle filter (8), active carbon filter core strainer (10) and the PPF candle filter (11) connecting successively.
4. water cleaning systems as claimed in claim 1, is characterized in that: between described reverse osmosis membrane filt (15) and Postposition carbon filter (19), be provided with a water flow sensing unit (7).
5. water cleaning systems as claimed in claim 1, is characterized in that: between described topping-up pump (13) and reverse osmosis membrane filt (15), be provided with a four-sided valve (6).
6. water cleaning systems as claimed in claim 1, is characterized in that: between described PPF strainer (8) and activated charcoal filter (10), be provided with an entering water electromagnetic valve (9).
7. water cleaning systems as claimed in claim 1, is characterized in that: described topping-up pump (13) is connected with a transformer (12).
8. water cleaning systems as claimed in claim 1, is characterized in that: the unlatching of described impulse electromagnetic valve (14), making time are 0.1 second.
9. water cleaning systems as claimed in claim 1, is characterized in that: the waste water of described pulse sewage discharge is greater than 1 to 3 with the ratio of pure water.
10. water cleaning systems as claimed in claim 1, is characterized in that: each time of rinsing of described impulse electromagnetic valve (14) was rinsed interval time between 15 seconds to 45 seconds between 0.1 second to 1 second at every turn.
CN201420099618.3U 2014-01-15 2014-03-05 Strong-pulse micro-wastewater discharge water purification system Expired - Lifetime CN203781935U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420099618.3U CN203781935U (en) 2014-01-15 2014-03-05 Strong-pulse micro-wastewater discharge water purification system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201420021789.4 2014-01-15
CN201420021789 2014-01-15
CN201420099618.3U CN203781935U (en) 2014-01-15 2014-03-05 Strong-pulse micro-wastewater discharge water purification system

Publications (1)

Publication Number Publication Date
CN203781935U true CN203781935U (en) 2014-08-20

Family

ID=50701187

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201420099618.3U Expired - Lifetime CN203781935U (en) 2014-01-15 2014-03-05 Strong-pulse micro-wastewater discharge water purification system
CN201410078645.7A Active CN103803736B (en) 2014-01-15 2014-03-05 Strong-pulse micro-wastewater emission and purification system

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201410078645.7A Active CN103803736B (en) 2014-01-15 2014-03-05 Strong-pulse micro-wastewater emission and purification system

Country Status (1)

Country Link
CN (2) CN203781935U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103803736A (en) * 2014-01-15 2014-05-21 深圳澳特弗科技有限公司 Strong-pulse micro-wastewater emission and purification system
CN106861441A (en) * 2017-03-29 2017-06-20 海南立昇净水科技实业有限公司 Water purification membrane component cleaning method and water purification membrane module cleaning device

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104607050A (en) * 2014-12-30 2015-05-13 广东艾沃科技有限公司 Pulse washing method of reverse osmosis membrane of water purifier
CN105152378A (en) * 2015-09-14 2015-12-16 珠海格力电器股份有限公司 Water purifier with pure water reflux device
CN106587264A (en) * 2015-10-14 2017-04-26 乌日尼乐 Pure water machine
CN105293638A (en) * 2015-12-05 2016-02-03 中山市雅乐思净水科技有限公司 Device and method for intelligently regulating proportion of pure water to concentrated water for water purifier
CN107915282B (en) * 2016-10-11 2019-12-10 青岛经济技术开发区海尔热水器有限公司 Reverse osmosis water purifier
CN106830400A (en) * 2017-01-23 2017-06-13 上海六滴环保科技有限公司 A kind of water purifier with pure water vacuolar membrane function when shutting down static
CN106830399A (en) * 2017-01-23 2017-06-13 上海六滴环保科技有限公司 A kind of Novel water purifier with pure water vacuolar membrane function when shutting down static
CN107010744A (en) * 2017-05-02 2017-08-04 浙江艾波特环保科技股份有限公司 A kind of micro- waste water water purifier
CN106986492A (en) * 2017-05-02 2017-07-28 浙江艾波特环保科技股份有限公司 One kind prevents the elevated water purifier of TDS values
CN110615505A (en) * 2019-10-08 2019-12-27 浙江诺水科技发展有限公司 Integrated water purifier
CN114515464B (en) * 2020-11-17 2024-05-07 台湾积体电路制造股份有限公司 Filtration system and method of cleaning a filtration device
CN114394647A (en) * 2021-12-29 2022-04-26 佛山市美的清湖净水设备有限公司 Water purifier
CN114275849A (en) * 2021-12-29 2022-04-05 佛山市美的清湖净水设备有限公司 Water purifier with double TDS probes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11319827A (en) * 1998-03-19 1999-11-24 Daisen Membrane Systems Kk Reverse osmosis membrane type water purifying device
CN2875574Y (en) * 2006-02-17 2007-03-07 佳尼特(上海)纯水设备有限公司 Intermittent drain water saving type reverse osmosis water purification device
CN100445212C (en) * 2006-06-23 2008-12-24 深圳市英尼克电器有限公司 Control method for cyclic utilization of concentrated water in reverse-osmosis water-purifying treatment
CN201923895U (en) * 2010-12-13 2011-08-10 余泽嗣 Water-saving RO (Reverse Osmosis) water purifier system
CN202148205U (en) * 2011-05-09 2012-02-22 江苏正本净化节水科技实业有限公司 Reverse-osmosis water purifier
CN203173901U (en) * 2013-02-04 2013-09-04 深圳安吉尔饮水产业集团有限公司 Water purifier and impulse type waste water discharge device thereof
CN103183419A (en) * 2013-03-18 2013-07-03 艾欧史密斯(上海)水处理产品有限公司 Reverse osmosis purification system
CN203781935U (en) * 2014-01-15 2014-08-20 深圳澳特弗科技有限公司 Strong-pulse micro-wastewater discharge water purification system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103803736A (en) * 2014-01-15 2014-05-21 深圳澳特弗科技有限公司 Strong-pulse micro-wastewater emission and purification system
CN106861441A (en) * 2017-03-29 2017-06-20 海南立昇净水科技实业有限公司 Water purification membrane component cleaning method and water purification membrane module cleaning device
CN106861441B (en) * 2017-03-29 2020-02-21 海南立昇净水科技实业有限公司 Method and device for cleaning water purification membrane module

Also Published As

Publication number Publication date
CN103803736A (en) 2014-05-21
CN103803736B (en) 2015-04-15

Similar Documents

Publication Publication Date Title
CN203781935U (en) Strong-pulse micro-wastewater discharge water purification system
WO2015131422A1 (en) Intense pulsation micro wastewater discharge water purification system
CN102964016B (en) Domestic dual water supply treating equipment
Jiang et al. Application of reverse osmosis in purifying drinking water
CN103601310B (en) A kind of seawater desalination system water treatment method and device thereof
CN100469981C (en) Household quality separation water-supply method and apparatus
CN101597110B (en) Anti-pollution reverse-osmosis water purification machine
CN206109071U (en) Purifier of pure water backward flow back flush milipore filter
CN103553233A (en) Bucket-free water-saving water purifier
CN204550231U (en) A kind of micro-waste water water-purifying machine
CN1800040A (en) Direct drinking machine for purified water (water-saving civil pipeline type quality-classifying water supplying machine )
CN203373223U (en) Water treatment device of seawater desalination system
CN201825798U (en) Reverse osmosis membrane water purifier with less or no wastewater draining
CN106007121B (en) A kind of tap water entirety purification system
CN103663861B (en) Advanced treatment method for grading and recycling industrial park wastewater after biochemical processes
CN103420450A (en) Double membrane mutual flushing type double water outlet reverse osmosis water purifier
CN101885521A (en) Household and commercial waste water-free reverse osmosis device
CN210163221U (en) Ecological environment-friendly wastewater-free water purifier
CN201770547U (en) Water purifier
Glueckstern et al. Desalination of brackish fish pond effluents—pilot testing and comparative economic evaluation of integrated UF-RO systems vs. conventional systems
CN203419776U (en) Double-membrane mutual-washing type double-effluent reverse osmosis water purifier
CN204874053U (en) Wide just long service life's water purification machine of application scope
CN206508813U (en) Water purifier
CN201245525Y (en) Emergency drinking water supply system
CN220432572U (en) Central water purifying equipment with TDS sensing micro-discharge function

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20140820

CX01 Expiry of patent term