CN102190393A - Purified water production process with high recovery rate - Google Patents
Purified water production process with high recovery rate Download PDFInfo
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- CN102190393A CN102190393A CN2010101226030A CN201010122603A CN102190393A CN 102190393 A CN102190393 A CN 102190393A CN 2010101226030 A CN2010101226030 A CN 2010101226030A CN 201010122603 A CN201010122603 A CN 201010122603A CN 102190393 A CN102190393 A CN 102190393A
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Abstract
The invention relates to a purified water production process with high recovery rate. The process comprises three steps, namely raw water pretreatment, reverse osmosis filtration and concentrated water reclamation and is characterized by the addition of the concentrated water reclamation, wherein the concentrated water reclamation comprises the following steps of: successively processing water in a concentrated water tank by a concentrated water sand filer, a concentrated water carbon filter, a concentrated water softening apparatus and a concentrated water fine filter and then carrying out reverse osmosis treatment; and returning fresh water subjected to concentrated water reverse osmosis treatment to a raw water tank, and finally discharging sewage. In the process, the concentrated water which is ready to be discharged is recycled again for secondary purification, thereby improving the repeated utilization of the purified water,avoiding the waste of water resource, and enhancing the reusing rate of water reaches to above 85%.
Description
Technical field
The present invention relates to a kind of pure water production unit, relate in particular to a kind of pure water production technique of high-recovery.
Background technology
After the pure water production technique of prior art is generally softening through the filter of sand filtration, charcoal, softening agent, secondary filter filters, obtain pure water and dense water by reverse-osmosis treated again, pure water collection, dense water directly discharges.This technology pure water rate of recovery is low, and water resource waste is serious.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of recovery utilization rate height, the effective pure water production technique of the high-recovery of conserve water resource are provided.
The object of the present invention is achieved like this: a kind of pure water production technique of high-recovery comprises following treatment step:
A. former water pretreatment: the water of raw water box is filtered through sand-bed filter, char filter, softening agent and first secondary filter successively;
B. osmosis filtration: will enter former water reverse-osmosis treated device after by the high-pressure pump pressurization through the water of former water pretreatment, and enter the pure water case through the pure water of former water reverse-osmosis treated, dense water enters dense water tank;
C. dense water reclaims: the water of dense water tank is filtered through overrich water sand-bed filter, dense water char filter, dense water softening apparatus and dense crystal's filter successively, wherein, add flocculation agent on the pipeline before entering dense water sand-bed filter, add Scale inhibitors on the pipeline before entering dense crystal's filter; To after the filtering water of overrich crystal filter is by the pressurization of dense water high-pressure pump, enter dense water reverse-osmosis treated device, turn back to raw water box, sewage discharge through the fresh water of overrich water reverse-osmosis treated.
For fear of because winter temperature is lower, the reverse osmosis membrane water production rate descends, and described former water pretreatment step also comprises middle the tank that is arranged on the first secondary filter afterbody, again with the water of middle tank through plate-type heat exchanger heating and the filtration of second secondary filter.
Described first secondary filter, second secondary filter be with dense crystal's filter be that precision is the strainer of 5 μ m;
Described sand-bed filter and dense water sand-bed filter all are the quartz sand filtration devices, and it is that the quartz sand of φ 1～4mm is as filler that the quartz sand filtration device is selected with particle diameter.
The invention has the advantages that: 1, the pure water production technique of high-recovery of the present invention is by former water pretreatment, former water reverse osmosis, and dense water reclaims three parts and forms.Former water pretreatment part: suspended substance, colloid, organism, part bacterium and chlorine residue during former water dewaters through sand filtration, charcoal elimination, remove most of calcium ions and magnesium ions in the water to prevent that surveying the scale formation that other material takes place surface deposition lime carbonate and prevention at the dense water of membrane module is that reverse osmosis unit provides into water condition through softening agent again; The reverse osmosis part: reverse osmosis unit is a topmost desalting plant in the former water treatment, and it has high desalination ability.Can remove impurity such as most colloid, ion, particulate in the water, water is carried out purification separation; Dense water recovery part: the dense water that produces through reverse osmosis isolation enters dense apparatus for recovering and carries out recycling, the characteristics of apparatus of the present invention be not only can the recycling reverse osmosis dense water, also can carry out recycling, can fundamentally improve the recovery utilization rate of water the dense water that produces in other pure water production processes.2, the pure water production technique of high-recovery of the present invention dense water that original preparation is emitted is recycled once more, carries out secondary-cleaned, has not only improved the water purifying repeating utilization factor, has also avoided the waste of water resources; 3, the pure water production technique of high-recovery of the present invention can realize the serialization operation, and the recovery repeatedly of dense water quilt is purified again, and the reclamation rate of water is reached more than 85%; 4, the dense water of the present invention in not only can the recycling reverse osmosis unit also can carry out recycling to the dense water that other devices produce in the pure water production process, can fundamentally improve the recovery utilization rate of water.
Description of drawings
Fig. 1 is the schematic flow sheet of the pure water production technique of high-recovery of the present invention.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of pure water production technique of high-recovery, comprise the former water pretreatment of following treatment step: a.: the water of raw water box is entered middle tank after process sand-bed filter, char filter, softening agent and the filtration of first secondary filter successively, and the water with middle tank carries out plate-type heat exchanger heating and the filtration of second secondary filter again; Wherein on the pipeline between raw water box and the sand-bed filter, raw water pump is set, on the pipeline between middle tank and the plate-type heat exchanger, topping-up pump is set; B. osmosis filtration: will enter former water reverse-osmosis treated device after by the high-pressure pump pressurization through the filtering water of second secondary filter, and enter the pure water case through the pure water of former water reverse-osmosis treated, dense water enters dense water tank; C. dense water reclaims: the water of dense water tank is filtered through overrich water sand-bed filter, dense water char filter, dense water softening apparatus and dense crystal's filter successively, wherein, add flocculation agent on the pipeline before entering dense water sand-bed filter, add Scale inhibitors on the pipeline before entering dense crystal's filter; On the pipeline between dense water tank and the dense water sand-bed filter, dense water pump is set; To after the filtering water of overrich crystal filter is by the pressurization of dense water high-pressure pump, enter dense water reverse-osmosis treated device, turn back to raw water box, sewage discharge through the fresh water of overrich water reverse-osmosis treated.Described first secondary filter, second secondary filter be with dense crystal's filter be that precision is the strainer of 5 μ m.Described sand-bed filter and dense water sand-bed filter all are the quartz sand filtration devices, and it is that the quartz sand of φ 1～4mm is as filler that the quartz sand filtration device is selected with particle diameter.
Claims (4)
1. the pure water production technique of a high-recovery comprises following treatment step:
A. former water pretreatment: the water of raw water box is filtered through sand-bed filter, char filter, softening agent and first secondary filter successively;
B. osmosis filtration: will enter former water reverse-osmosis treated device after by the high-pressure pump pressurization through the water of former water pretreatment, and enter the pure water case through the pure water of former water reverse-osmosis treated, dense water enters dense water tank;
C. dense water reclaims: the water of dense water tank is filtered through overrich water sand-bed filter, dense water char filter, dense water softening apparatus and dense crystal's filter successively, wherein, add flocculation agent on the pipeline before entering dense water sand-bed filter, add Scale inhibitors on the pipeline before entering dense crystal's filter; To after the filtering water of overrich crystal filter is by the pressurization of dense water high-pressure pump, enter dense water reverse-osmosis treated device, turn back to raw water box, sewage discharge through the fresh water of overrich water reverse-osmosis treated.
2. according to the pure water production technique of the described high-recovery of claim 1, it is characterized in that: described former water pretreatment step also comprises the middle tank that is arranged on the first secondary filter afterbody, and the water with middle tank filters through the plate-type heat exchanger heating and second secondary filter again.
3. according to the pure water production technique of claim 1 or 2 described high-recoveries, it is characterized in that: described first secondary filter, second secondary filter be with dense crystal's filter be that precision is the strainer of 5 μ m.
4. according to the pure water production technique of the described high-recovery of claim 3, it is characterized in that: described sand-bed filter and dense water sand-bed filter all are the quartz sand filtration devices, and it is that the quartz sand of φ 1～4mm is as filler that the quartz sand filtration device is selected with particle diameter.
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| CN2010101226030A CN102190393A (en) | 2010-03-12 | 2010-03-12 | Purified water production process with high recovery rate |
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| CN2010101226030A CN102190393A (en) | 2010-03-12 | 2010-03-12 | Purified water production process with high recovery rate |
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| CN102190393A true CN102190393A (en) | 2011-09-21 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489154A (en) * | 2011-12-14 | 2012-06-13 | 湖南生命伟业科技有限责任公司 | Reverse osmosis type remote monitoring and recycling method and system for concentrated water |
| CN105084566A (en) * | 2014-05-19 | 2015-11-25 | 唐伟钊 | Dual-water-outlet water purifier |
| CN106145455A (en) * | 2016-08-31 | 2016-11-23 | 常州朗脉洁净技术有限公司 | High-recovery purified water machine |
| CN108623040A (en) * | 2018-05-08 | 2018-10-09 | 深圳市华虹清源环保科技有限公司 | A kind of high-recovery inorganic wastewater treatment process |
| CN110498478A (en) * | 2019-09-21 | 2019-11-26 | 佛山市云米电器科技有限公司 | Split type reverse osmosis filter element device and water purifier |
| CN110950455A (en) * | 2019-11-28 | 2020-04-03 | 中国第一汽车股份有限公司 | Treatment system and treatment method for water-based paint waste cleaning solvent |
| CN111533324A (en) * | 2020-05-26 | 2020-08-14 | 天津利成虹宇包装材料有限公司 | Water purification and circulation method for casing film production |
| CN113003821A (en) * | 2021-03-31 | 2021-06-22 | 重庆品正食品有限公司 | Pure water filtering system |
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| US20030019764A1 (en) * | 2000-08-11 | 2003-01-30 | H20 Technologies, Ltd. | Under the counter water treatment system |
| CN101279780A (en) * | 2008-05-20 | 2008-10-08 | 钮德明 | Method for removing sugar of and purifying boiler water for sugar refinery |
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| CN201415958Y (en) * | 2009-06-17 | 2010-03-03 | 西安皓海嘉水处理科技有限责任公司 | Reclaimed water reuse device |
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| KR100221225B1 (en) * | 1996-10-16 | 1999-10-01 | 지은상 | Apparatus for brine conversion |
| US20030019764A1 (en) * | 2000-08-11 | 2003-01-30 | H20 Technologies, Ltd. | Under the counter water treatment system |
| CN101279780A (en) * | 2008-05-20 | 2008-10-08 | 钮德明 | Method for removing sugar of and purifying boiler water for sugar refinery |
| WO2010017303A2 (en) * | 2008-08-05 | 2010-02-11 | Aquatech International Corporation | Reverse osmosis enhanced recovery hybrid process |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489154A (en) * | 2011-12-14 | 2012-06-13 | 湖南生命伟业科技有限责任公司 | Reverse osmosis type remote monitoring and recycling method and system for concentrated water |
| CN105084566A (en) * | 2014-05-19 | 2015-11-25 | 唐伟钊 | Dual-water-outlet water purifier |
| CN106145455A (en) * | 2016-08-31 | 2016-11-23 | 常州朗脉洁净技术有限公司 | High-recovery purified water machine |
| CN108623040A (en) * | 2018-05-08 | 2018-10-09 | 深圳市华虹清源环保科技有限公司 | A kind of high-recovery inorganic wastewater treatment process |
| CN110498478A (en) * | 2019-09-21 | 2019-11-26 | 佛山市云米电器科技有限公司 | Split type reverse osmosis filter element device and water purifier |
| CN110498478B (en) * | 2019-09-21 | 2024-03-15 | 广东栗子科技有限公司 | Split type reverse osmosis filter element device and water purifier |
| CN110950455A (en) * | 2019-11-28 | 2020-04-03 | 中国第一汽车股份有限公司 | Treatment system and treatment method for water-based paint waste cleaning solvent |
| CN111533324A (en) * | 2020-05-26 | 2020-08-14 | 天津利成虹宇包装材料有限公司 | Water purification and circulation method for casing film production |
| CN113003821A (en) * | 2021-03-31 | 2021-06-22 | 重庆品正食品有限公司 | Pure water filtering system |
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Application publication date: 20110921 |