CN102115273A - Glacial water treatment method - Google Patents
Glacial water treatment method Download PDFInfo
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- CN102115273A CN102115273A CN2010102784212A CN201010278421A CN102115273A CN 102115273 A CN102115273 A CN 102115273A CN 2010102784212 A CN2010102784212 A CN 2010102784212A CN 201010278421 A CN201010278421 A CN 201010278421A CN 102115273 A CN102115273 A CN 102115273A
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Abstract
The invention discloses a glacial water treatment method, which comprises: (1) detecting water quality of water in a raw glacial water storage device, wherein if the water quality meets a preset requirement, a step (3) is executed directly, or a step (2) is performed; (2) transferring water from the raw glacial water storage device into a pretreatment unit for pretreatment, and then into a reverse osmosis treatment unit for reverse osmosis treatment, returning the water subjected to reverse osmosis treatment to the raw glacial water storage device to mix the water with raw water, and continuing to perform the step (1); and (3) transferring the water from the raw glacial water storage device to the pretreatment unit for pretreatment, and performing further purification treatment. The glacial water treatment method provided by the invention can select proper treatment steps according to the change of water quality at a water collecting point, realize simple product and assure product quality.
Description
Technical field
The present invention relates to a kind of treatment process of glacial water.
Background technology
The treatment process of existing glacial water generally includes coarse filtration (sand filtration, carbon filter) → ultrafiltration (0.15 μ m) → ozone sterilization (0.6mg/L) → four and closes → filling machine (sterilization, flushing, can, gland).Source water glacial water is filtered by sand filtration and carbon filter, the part trace suspension thing medium of aforementioned filter being failed to remove by ultrafiltration system is removed again, glacial water is further purified, add ozone again in the water after processing and water quality is reached drink the hygienic requirements of can, unify filling machines with four and carry out can.
CN101250012A discloses a kind of treatment process of glacial water, this method is through steps such as pretreatment unit A, ultra filtration unit B, absorption nano-filtration unit C, reverse osmosis units D, electric desalting unit E and post-processing unit F with natural glacial water, the moiety of glacial water is improved, remove unhelpful material in the glacial water and harmful microorganism, bacterium etc. simultaneously.
But commonly known is that water quality changes according to the dry point changes of seasons, the water quality of dry point and instability.Simple uf processing can not guarantee the quality of product.And the method among the CN101250012A is when the water quality of dry point is better, and it is too loaded down with trivial details and impracticable to seem again, causes long, energy dissipation of production cycle.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of treatment process of glacial water, it can select suitable treatment step according to the variation of dry point water quality, is realizing simply produced the stable of quality product that also guaranteed simultaneously.
For achieving the above object, glacial water treatment process of the present invention comprises:
(1) water quality of water in the former water storage facility in detection glacier is directly carried out step (3) if water quality reaches preset requirement, if water quality does not reach preset requirement, then carries out step (2);
(2) after water enters into pretreatment unit and carries out pre-treatment from the former water storage facility in glacier, enter reverse osmosis units and carry out reverse-osmosis treated, the water after the reverse-osmosis treated returns the former water storage facility in glacier to be mixed with wherein former water;
(3) after water enters into pretreatment unit and carries out pre-treatment from the former water storage facility in glacier, carry out further purifying treatment again.
Preferably, the purifying treatment in the described step (3) is selected from one or more in uf processing, the reverse-osmosis treated, is preferably uf processing.As an embodiment, can simultaneously water be handled by two unit entering uf processing unit and reverse-osmosis treated unit respectively simultaneously through pretreated water in the step (3).
The purpose of pretreatment unit described in the present invention is tentatively to remove sandy soil in the water, germ, worm's ovum and suspended substance etc.Preferably, described pretreatment unit comprises more medium filter, activated charcoal filter, the accurate filter that is linked in sequence successively.Preferably, the flocculation agent medicine system of also connecting before the described more medium filter.Preferably, the Scale inhibitors medicine system of also connecting before the accurate filter after the described activated charcoal filter.As one preferred embodiment, described accurate filter is placed in-line two accurate filters successively.
The filling material is multipath quartz sand in the described more medium filter.When water from top to bottom by packing layer, suspended substance and the bigger impurity of particle a large amount of in the water are held back by filler, thereby reduce turbidity and pollution index value in the water.
Filler in the described activated charcoal filter is a gac, and bottom is a quartz sand, activated charcoal filter can planar water in partial organic substances, adsorption rate about 60%, in addition can also planar water in chlorine residue.
Described accurate filter is a filter core filtering material filter, when the former water after filtering by multimedium, activated charcoal filter filters through accurate filter, the trace suspension medium that part is not removed by filter noted earlier will be removed, water is further purified, guarantee that follow-up reverse osmosis or ultrafiltration system normally move.The filter core of described accurate filter is preferably 5 μ m, PP material.
Described flocculation agent medicine system adds flocculation agent for before water enters more medium filter in water.Effects such as the neutralization by electric charge, coagulation, bridge formation make the coacervation of colloid in the water become big, so that more medium filter can be removed suspended substance in the water, colloid effectively, thereby reduce pollution index (SDI) value of water outlet.
Described Scale inhibitors medicine system adds Scale inhibitors for before water enters reverse osmosis system in water.Alleviate the possibility of reverse osmosis membrane fouling, thereby prolong the work-ing life of reverse osmosis membrane.
Described reverse osmosis units utilizes principle of reverse osmosis to remove exhausted most inorganic ion in the water continuously, can also remove most organism, bacterium, thermal source, virus, particulate etc. in the water.
Described uf processing unit by using be a kind of membrane separation technique between nanofiltration and micro-filtration.The ultra-filtration and separation process is based on sieving mechanism.Generally, the serial screen cloth that can regard the ultra-filtration membrane of PSPP as different apertures.Under certain pressure, it only allows solvent and sees through less than the solute of membrane pore size, and stops suspended substance, particulate, colloid, larger molecular organics and bacterium etc. in the water to pass through greater than the solute of membrane pore size, to finish the water purification process.
The preset requirement of the water quality in the described step (1), those skilled in the art can obtain according to practical situation such as water quality, water purposes.
Preferably, described treatment process also is included in step (3) step afterwards:
(4) water enters sterili-sation unit and carries out germicidal treatment;
(5) water through germicidal treatment is carried out membrane filtration and obtain pure water.
Described germicidal treatment comprises ozone sterilization and/or ultraviolet-sterilization.
The present invention has considered the characteristics that water quality changes according to the dry point changes of seasons, for water quality when undesirable, earlier with after the water process reverse-osmosis treated, turning back to former water storage facility again mixes with former water, to improve the water quality in the former water storage facility, make it to reach preset requirement, be further processed again.Method of the present invention is simple, and has saved cost.
Description of drawings
Figure 1 shows that the treatment scheme synoptic diagram of an embodiment according to the present invention.
Figure 2 shows that the treatment scheme synoptic diagram of another embodiment according to the present invention
Embodiment
As shown in Figure 1, be processing flow chart according to a kind of glacial water of a specific embodiment of the present invention, at first detect the water quality of water in the former water storage facility in glacier, if water quality does not reach preset requirement, then carry out reverse-osmosis treated through after the pre-treatment, water after the reverse-osmosis treated returns the former water storage facility in glacier to be mixed with wherein former water, again the duplicate detection step; If water quality reaches preset requirement, then obtain water purification through directly carrying out uf processing after the pre-treatment.Pre-treatment before the reverse osmosis and the pre-treatment before the ultrafiltration can shared cover pretreatment systems, also can be respectively two independently pretreatment systems.
More specifically, Figure 2 shows that synoptic diagram according to another embodiment of the present invention.Wherein pretreatment unit comprises and connects flocculation agent chemicals dosing plant, more medium filter, activated charcoal filter, Scale inhibitors chemicals dosing plant, accurate filter, accurate filter successively.Pretreatment unit of uf processing unit and reverse-osmosis treated units shared.
Wherein raw water box is used to store former water, has shock absorption, can guarantee the constant of system's flooding quantity, is not subjected to ectocine.
The flocculation agent medicine system is used for before water enters more medium filter, adds flocculation agent in water.Effects such as the neutralization by electric charge, coagulation, bridge formation make the coacervation of colloid in the water become big, so that more medium filter can be removed suspended substance in the water, colloid effectively, thereby reduce pollution index (SDI) value of water outlet.
More medium filter is a vertical vessel.Interior filling material is selected the multipath quartz sand of fine and quality for use.When former water from top to bottom by packing layer, suspended substance and the bigger impurity of particle a large amount of in the water are held back by filler, thereby reduce the turbidity (NTU) and pollution index (SDI) value of former water.
Activated charcoal filter is a vertical vessel.It is quartz sand that interior filling material is selected high-quality active fruit shell carbon, bottom for use.Activated charcoal filter mainly contains following two functions: partial organic substances in the planar water, adsorption rate about 60%; Chlorine residue in the planar water.
The Scale inhibitors medicine system is used for before water enters reverse osmosis system, adds Scale inhibitors in water.Alleviate the possibility of reverse osmosis membrane fouling, thereby prolong the work-ing life of reverse osmosis membrane.
Accurate filter is a vertical filter core filtering material filter, when the former water after filtering by multimedium, activated charcoal filter filters through accurate filter, the trace suspension medium that part is not removed by filter noted earlier will be removed, water is further purified, guarantee that ultrafiltration system normally moves.
The uf processing unit by using be a kind of ultra-filtration membrane isolation technique between nanofiltration and micro-filtration.The ultra-filtration and separation process is based on sieving mechanism.Generally, the serial screen cloth that can regard the ultra-filtration membrane of PSPP as different apertures.Under certain pressure, it only allows solvent and sees through less than the solute of membrane pore size, and stops suspended substance, particulate, colloid, larger molecular organics and bacterium etc. in the water to pass through greater than the solute of membrane pore size, to finish the water purification process.
The reverse-osmosis treated unit utilizes the manufacturing of principle of reverse osmosis specialized designs, and reverse osmosis unit is a kind of high-new water separating membrane treatment technology equipment, is the equipment of most critical in the native system.It can not only remove exhausted most inorganic ion in the water continuously, can also remove most organism, bacterium, thermal source, virus, particulate etc. in the water.It is one of state-of-the-art in the world pure water preparation technology at present.Former water is reduced to the pollution index of water below 4 after more medium filter, activated charcoal filter etc. are handled, and chlorine residue is reduced to below the 0.1mg/l, thereby guarantees the safe operation of reverse osmosis system.The security personnel filter of feed water by reverse osmosis by a replaceable cartridge, this filter can be removed the overwhelming majority's suspended substance, and the water by the filter of ensuring public security enters into high-pressure pump.High-pressure pump is delivered in parallel or placed in-line reverse osmotic pressure force container with water, and water by reverse osmosis membrane separation, goes out pressurized vessel to produce water and concentrated stream in pressurized vessel.Water producing pipe is equipped with vacuum breaker on the road, is subjected to uplift pressure and damages with the block film element, measures its water production rate with under meter.Dense water flows out from last pressurized vessel, flow to the dense water pipeline that catchments, and concentrated water discharge is to trench, but when needing partial reflux before high-pressure pump.The concentrated stream amount is controlled by the rate of recovery and the working pressure of system, measures its concentrated stream amount with under meter.
Sterili-sation unit can adopt ozone sterilization or ultraviolet-sterilization.Ozone is a kind of sterilant commonly used.Ozone is emitted the oxygen of nascent state when decomposing, it has strong oxidation capacity, and the microorganism of tanacity is had powerful lethality as virus, gemma etc.In addition, it is strong that its infiltrates cell walls ability, can destroy bacterium organism chain-like structure and cause bacterium death.The effect of ultraviolet sterilizer is to kill or suppress bacterium.The lamp works life-span is 8000 hours, and the accumulated time device reading on housing reaches 8000 hours, in time change fluorescent tube, in order to avoid water water quality is produced in influence.More finish changing fluorescent tube in time with the zero clearing of accumulator time.
It is the PP foldable filter element of 0.22 μ m that membrane filter adopts filtering accuracy, can remove bacterial degradation thing and bacterium corpse effectively.
Claims (9)
1. glacial water treatment process is characterized in that comprising:
(1) water quality of water in the former water storage facility in detection glacier is directly carried out step (3) if water quality reaches preset requirement, if water quality does not reach preset requirement, then carries out step (2);
(2) after water enters into pretreatment unit and carries out pre-treatment from the former water storage facility in glacier, enter reverse osmosis units and carry out reverse-osmosis treated, the water after the reverse-osmosis treated returns the former water storage facility in glacier to be mixed with wherein former water;
(3) after water enters into pretreatment unit and carries out pre-treatment from the former water storage facility in glacier, carry out further purifying treatment again.
2. treatment process according to claim 1 is characterized in that purifying treatment in the described step (3) is selected from one or more in uf processing, the reverse-osmosis treated.
3. treatment process according to claim 2 is characterized in that, the purifying treatment in the described step (3) is a uf processing.
4. treatment process according to claim 1 is characterized in that, described pretreatment unit comprises more medium filter, activated charcoal filter, the accurate filter that is linked in sequence successively.
5. treatment process according to claim 4 is characterized in that, in the described pretreatment unit, also is in series with a flocculation agent medicine system before more medium filter.
6. treatment process according to claim 4 is characterized in that, in the described pretreatment unit, and the Scale inhibitors medicine system of also connecting before the accurate filter after the described activated charcoal filter.
7. treatment process according to claim 4 is characterized in that, described accurate filter is placed in-line two accurate filters successively.
8. treatment process according to claim 1 is characterized in that, described treatment process also is included in step (3) step afterwards:
(4) water enters sterili-sation unit and carries out germicidal treatment;
(5) water through germicidal treatment is carried out membrane filtration and obtain pure water.
9. treatment process according to claim 8 is characterized in that, described germicidal treatment comprises ozone sterilization and/or ultraviolet-sterilization processing.
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| CN2010102784212A CN102115273A (en) | 2010-09-08 | 2010-09-08 | Glacial water treatment method |
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| CN2010102784212A CN102115273A (en) | 2010-09-08 | 2010-09-08 | Glacial water treatment method |
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| CN102115273A true CN102115273A (en) | 2011-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113401855A (en) * | 2021-06-25 | 2021-09-17 | 杭州力环科技有限公司 | Underground drinking water filling equipment with detection mechanism |
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| CN1489967A (en) * | 2003-08-25 | 2004-04-21 | 林 杨 | Process flow for multifunctional bottled water works |
| CN2786092Y (en) * | 2005-05-13 | 2006-06-07 | 朱国柱 | Apparatus for purifying and reclaiming bathing sewage |
| CN1878728A (en) * | 2003-11-13 | 2006-12-13 | 可滤康国际公司 | Flow-through tank for water treatment |
| CN101468821A (en) * | 2007-12-25 | 2009-07-01 | 中国石油化工股份有限公司 | Pretreatment system and pretreatment method for sewerage |
| JP2009279472A (en) * | 2008-05-19 | 2009-12-03 | Miura Co Ltd | Reverse osmosis membrane device |
| CN101767888A (en) * | 2009-12-29 | 2010-07-07 | 郑理慎 | Wastewater recycling treatment process |
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2010
- 2010-09-08 CN CN2010102784212A patent/CN102115273A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1489967A (en) * | 2003-08-25 | 2004-04-21 | 林 杨 | Process flow for multifunctional bottled water works |
| CN1878728A (en) * | 2003-11-13 | 2006-12-13 | 可滤康国际公司 | Flow-through tank for water treatment |
| CN2786092Y (en) * | 2005-05-13 | 2006-06-07 | 朱国柱 | Apparatus for purifying and reclaiming bathing sewage |
| CN101468821A (en) * | 2007-12-25 | 2009-07-01 | 中国石油化工股份有限公司 | Pretreatment system and pretreatment method for sewerage |
| JP2009279472A (en) * | 2008-05-19 | 2009-12-03 | Miura Co Ltd | Reverse osmosis membrane device |
| CN101767888A (en) * | 2009-12-29 | 2010-07-07 | 郑理慎 | Wastewater recycling treatment process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113401855A (en) * | 2021-06-25 | 2021-09-17 | 杭州力环科技有限公司 | Underground drinking water filling equipment with detection mechanism |
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Application publication date: 20110706 |