CN101767846A - Method for recycling reverse osmosis reclaimed water - Google Patents
Method for recycling reverse osmosis reclaimed water Download PDFInfo
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- CN101767846A CN101767846A CN 200810208112 CN200810208112A CN101767846A CN 101767846 A CN101767846 A CN 101767846A CN 200810208112 CN200810208112 CN 200810208112 CN 200810208112 A CN200810208112 A CN 200810208112A CN 101767846 A CN101767846 A CN 101767846A
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Abstract
The invention relates to a method for recycling reverse osmosis reclaimed water, which comprises the following steps of: carrying out reverse osmosis treatment on raw water and generating concentrated water and pure water; collecting the concentrated water generated after the reverse osmosis treatment into a concentrated water collecting pool; collecting the washed wastewater of the pure water generated after the reverse osmosis treatment and converging in the concentrated water collecting pool for carrying out fusion treatment; and delivering a fused reclaimed water flow to a cooling circulation water system. The invention directly combines the concentrated wastewater of reverse osmosis and the wastewater after the pure water is washed by a process or fuses by simple treatment with low treatment cost, and the recycled water can be widely applied to the cooling circulation water system which accounts for 80 percent of industrial water.
Description
Technical field
The present invention relates to wastewater processing technology, relate in particular to a kind of recycling reverse osmosis reclaimed water.
Background technology
RO (reverse osmos) reverse-osmosis treated relies on pushed at high pressure power with semipermeable partition tap water to be realized separating of dense water and pure water, China RO technical development is very fast since the beginning of the nineties, the molecular separation method of RO substitutes traditional ion exchange method in industrial production, at electronic devices and components, stainless steel plate, the automobile household appliance shell, medicine food obtains a large amount of application in the developing techniques such as the packaging vessel of daily-use chemical industry.
Because RO condensed water ionic concn height can not be used by other technology, except that being used to water flowers on a small quantity, flushing enters waste water processing station outside the road surface mostly.On the other hand, the pure water of RO also enters waste water processing station after flushing.Middle water reuse at present commonly used be with the waste water in the waste water station through the past suspended substance, the waste water treatment process that ion and COD etc. are complicated need expend a large amount of manpower, material resources and financial resources, general for this reason enterprise seldom adopts.
Therefore, wish to have a kind of technology that can recycle reverse-osmosis treated water effectively.
Summary of the invention
For this reason, the present invention proposes to recycle effectively a kind of recycling reverse osmosis reclaimed water of reverse-osmosis treated water.
The present invention is that to solve the problems of the technologies described above the technical scheme that adopts be to propose a kind of recycling reverse osmosis reclaimed water, and may further comprise the steps: Jiang Yuanshui carries out reverse-osmosis treated, produces dense water and pure water; The dense water of reverse-osmosis treated is collected a dense water collecting tank; The pure water of collecting reverse-osmosis treated imports this dense water collecting tank and melts processing mutually through the waste water after washing; And the middle water current after melting mutually are delivered to cooling circulating water system.
In above-mentioned recycling reverse osmosis reclaimed water, also comprise after this reverse-osmosis treated: carry out EDI and handle or mix the bed processing.
In above-mentioned recycling reverse osmosis reclaimed water, will melt processing mutually through this dense water collecting tank of the remittance of the waste water after the flushing and also comprise before, remove objectionable impurities.
Therefore, the present invention directly unites two into one the density wastewater during of RO with the waste water of RO pure water after the technology flushing or melts mutually through simple process, and processing costs is very low.The suspended substance of this reuse water, COD, resolvability solids content≤tap water.Can be widely applied to the cooling circulating water system that accounts for process water 80%, substitute cooling tower fully because evaporation drift and discharging need a large amount of tap water that replenish, also may be used in other production technique, or the water inlet system that is back to one-level RO forms closed cycle, thereby realize the zero release of waste water, make a silk purse out of a sow's ear, produce economic benefit and social benefit that directly water saving (letter connects energy-conservation) reduces discharging.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is the middle water treatment synoptic diagram according to RO density wastewater during of the present invention and developing technique waste water.
Embodiment
Fig. 1 is the middle water treatment synoptic diagram according to RO density wastewater during of the present invention and developing technique waste water.Please refer to shown in Figure 1ly, a kind of recycling reverse osmosis reclaimed water of the present invention may further comprise the steps:
At first, former water (as tap water) is carried out sand filtration, gac filter, secondary filter 101-103, reduce to be better than tap water significantly, help the application of cooling circulating water system heat conduction or other technologies through smart its suspended substance of water filtered of sand filtration carbon filter;
Secondly, the water after step 104 will be filtered carries out reverse-osmosis treated, produces dense water and pure water; Preferably, the pure water of reverse-osmosis treated also handles 105 through EDI or mixed bed;
Afterwards, in step 106 the dense water of reverse-osmosis treated is collected dense water collecting tank; And the pure water of reverse-osmosis treated can pass through developing technique, and this part waste water after step 107 is collected the process flushing then, imports dense water collecting tank by pump and melts processing mutually to a collecting tank; Preferably, importing the processing 108 of also removing objectionable impurities before the dense water collecting tank.
At last, in step 109 the middle water current after melting mutually are delivered to cooling circulating water system.
Because the RO pure water after the flushing is generally received through waste water and is managed waste water station, therefore can transform prior art according to the present invention easily, can adopt simply changes its course flows into the flushing back and collects pond (the intermediate pool volume is very little) and send into the cooling-tower circulating water system as required with pump again after dense water collecting tank two hydrations one or for other technologies uses with being pumped into.
The characteristics of water are in the reverse osmosis, and its suspended substance of water reduces to be better than the application that tap water helps cooling circulating water system heat conduction or other technologies significantly in the RO of sand filtration, gac filter and secondary filter; And mostly developing technique adopts RO+ (mixing bed or EDI) to handle, and cycles of concentration and other technologies of electrical conductivity of water among the RO being reduced significantly be better than tap water to help improving cooling circulating water system are used.
Therefore, method of the present invention is the density wastewater during of RO is directly united two into one with the waste water of RO pure water after the technology flushing or to melt mutually through simple process, and processing costs is very low.The suspended substance of this reuse water, COD, resolvability solids content≤tap water, can be widely applied to the cooling circulating water system that accounts for process water 80%, substitute cooling tower fully, also may be used in other production technique because evaporation drift and discharging need a large amount of tap water that replenish, or the water inlet system that is back to one-level RO forms closed cycle, thereby realize the zero release of waste water, make a silk purse out of a sow's ear, produce economic benefit and social benefit that directly water saving (letter connects energy-conservation) reduces discharging.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (3)
1. recycling reverse osmosis reclaimed water may further comprise the steps:
Former water is carried out reverse-osmosis treated, produce dense water and pure water;
The dense water of reverse-osmosis treated is collected a dense water collecting tank;
The pure water of collecting reverse-osmosis treated imports this dense water collecting tank and melts processing mutually through the waste water after washing; And
Middle water current after melting mutually are delivered to cooling circulating water system.
2. recycling reverse osmosis reclaimed water as claimed in claim 1 is characterized in that, also comprises after this reverse-osmosis treated:
Carry out EDI and handle or mix the bed processing.
3. recycling reverse osmosis reclaimed water as claimed in claim 1 is characterized in that, will melt mutually to handle through this dense water collecting tank of the remittance of the waste water after the flushing also to comprise before, removes objectionable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810208112 CN101767846A (en) | 2008-12-29 | 2008-12-29 | Method for recycling reverse osmosis reclaimed water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810208112 CN101767846A (en) | 2008-12-29 | 2008-12-29 | Method for recycling reverse osmosis reclaimed water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101767846A true CN101767846A (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200810208112 Pending CN101767846A (en) | 2008-12-29 | 2008-12-29 | Method for recycling reverse osmosis reclaimed water |
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| CN (1) | CN101767846A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092877A (en) * | 2011-01-05 | 2011-06-15 | 富毅特（上海）环保科技有限公司 | System for comprehensively recycling waste water |
-
2008
- 2008-12-29 CN CN 200810208112 patent/CN101767846A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092877A (en) * | 2011-01-05 | 2011-06-15 | 富毅特（上海）环保科技有限公司 | System for comprehensively recycling waste water |
| CN102092877B (en) * | 2011-01-05 | 2013-07-03 | 富毅特（上海）环保科技有限公司 | System for comprehensively recycling waste water |
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Application publication date: 20100707 |