CN105198128B - A kind of saving type RO pure water production method - Google Patents
A kind of saving type RO pure water production method Download PDFInfo
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- CN105198128B CN105198128B CN201510730214.9A CN201510730214A CN105198128B CN 105198128 B CN105198128 B CN 105198128B CN 201510730214 A CN201510730214 A CN 201510730214A CN 105198128 B CN105198128 B CN 105198128B
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- reverse osmosis
- filter medium
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Abstract
The present invention relates to a kind of saving type RO pure water production method, belong to water-treatment technology field.Step：Running water is first passed around into quartz sand filtration processing, then the production water that sand filtration is obtained is sent into absorbent filter medium and carries out filtration treatment；The water outlet of absorbent filter medium is re-fed into reverse osmosis membrane and carries out filtration treatment；Described absorbent filter medium is made up of following component：Volcanic rock, modified activated carbon, activated alumina, kaolin clay, cationic ion-exchange resin；The present invention is pre-processed by filter sand to the water quality of running water, in the case of may remain in less reverse osmosis concentrated water discharge, keeps the flux of reverse osmosis membrane.
Description
Technical field
The present invention relates to a kind of saving type RO pure water production method, the more particularly to reverse osmosis in Household water purification equipment
Saturating pure water production method, belongs to water-treatment technology field.
Background technology
The water preparation process of domestic water purifying machine is mainly by applying certain pressure by reverse osmosis membrane to water, makes hydrone
With the mineral matter element of ionic state by one layer of reverse osmosis membrane, and the most inorganic salts (including heavy metal) being dissolved in water
Organic matter and bacterium, virus etc. can not pass through reverse osmosis membrane, so that the condensed water that passes through pure water with can not pass through is strict
Separate, the aperture on reverse osmosis membrane only has 0.0001~0.001 micron, equivalent to hundred a ten thousandths of a hairline.
But, it is anti-to mitigate during counter-infiltration pure water, it usually needs more concentrated water is given off from concentrated water side
The pollution of permeable membrane, but which results in the waste of more water.
The content of the invention
The technical problems to be solved by the invention are：Household reverse osmosis pure water production in, in order to avoid fouling membrane, have compared with
Many concentrated water discharges, cause water waste serious；The present invention mainly solved by pre-filtering means, can make outer displacement compared with
Under conditions of small, reverse osmosis membrane still there is preferable flux to keep.
Technical scheme：
A kind of saving type RO pure water production method, comprises the following steps：Running water is first passed around into quartz sand filtration
Processing, then the production water that sand filtration is obtained are sent into absorbent filter medium and carry out filtration treatment；The water outlet of absorbent filter medium is re-fed into counter-infiltration
Film carries out filtration treatment；Described absorbent filter medium is made up of following component in parts by weight：20~40 parts of volcanic rock,
120~150 parts of modified activated carbon, 10~20 parts of activated alumina, 10~20 parts of kaolin clay, cationic ion-exchange resin 5~
10 parts；
Described modified activated carbon is to be prepared via a method which to obtain：
By weight, 60~80 parts of coconut palm fruit case fibre is taken, smalls, then sodium hydroxide, water with 20~25 parts is ground into
10~20 parts and 20~30 parts of alcohols solvent is well mixed；Then mixture is placed in tube furnace, in the gas of inert gas
Under atmosphere, heating charing carries out ball milling after letting cool, then is washed with citric acid solution, then with pure water to neutrality, after drying, enters
Row grinding, obtains modified activated carbon.
Described alcohols solvent is one or more of mixtures in methanol, ethanol, propyl alcohol, isobutanol, n-butanol.
Described inert gas refers to argon gas, helium or nitrogen.
The parameter of carbonization is：5~10 DEG C/min of heating rate, 1100~1200 DEG C of carbonization temperature, carbonization time 3~
5 hours.
The mass concentration of described citric acid solution is 1~10%.
The material of described reverse osmosis membrane is cellulose acetate.
Reverse osmosis membrane is in filter process, and pressure is 0.1~0.5Mpa.
The flux of the production water of counter-infiltration is 10~30L/m2H, the concentrated water displaced volume of counter-infiltration is produce water volume 1/3
~1/2.
Beneficial effect
The present invention is pre-processed by filter sand to the water quality of running water, may remain in less reverse osmosis concentrated water discharge
In the case of, keep the flux of reverse osmosis membrane.
Embodiment
The particulate filter that volcanic rock is processed by the series of process such as ore dressing, broken, screening, grinding, its mainly into
Part is tens kinds of mineral matters and the trace elements such as silicon, aluminium, calcium, sodium, magnesium, titanium, manganese, iron, nickel, cobalt and molybdenum, and apparent is irregular
Grain, color is red-black brown, and porous light weight, grain diameter can require to produce according to different.Volcanic rock is in physics microstructure side
Face is shown as：The many micropores of rough surface, these features are particularly suitable for microorganism in its superficial growth, breeding, form biomembrane.
Volcanic rock filtrate makes BAF to handle municipal wastewater, and biochemical organic industrial sewage, living drainage,
Micro-polluted source water etc., can also replace quartz sand, activated carbon, anthracite etc. to be used as filter medium in Water purification, also simultaneously
Advanced treating can be done to the tail water after sewage treatment plant's two stage treatment technique, its processing water outlet reaches can after recycle water standard
Make Treated sewage reusing.
Activated alumina, also known as activated bauxite.Specially it is referred to as " activated alumina " using the usual of aluminum oxide in the catalyst,
It is a kind of porous, the solid material of high degree of dispersion, there is very big surface area, and its micropore surface possesses required by catalytic action
Characteristic, such as absorption property, surface-active, excellent heat endurance, thus be widely used as chemical reaction catalyst
And catalyst carrier.In the present invention, activated alumina, which is preferably used, meets People's Republic of China's chemical industry ministerial standard：HG/T
3927-2007。
Modified activated carbon, can effectively improve the absorption to originally impurities in water, colloid etc..Cationic ion-exchange resin
Main function is calcium, magnesium plasma in water removal, prevents the fouling of reverse osmosis membrane.
Embodiment 1
Running water is first passed around into quartz sand filtration processing, then the production water that sand filtration is obtained is sent into absorbent filter medium and carried out
Filter is handled；The water outlet of absorbent filter medium is re-fed into cellulose acetate reverse osmosis film and carries out filtration treatment；Reverse osmosis membrane is in filter process
In, pressure is 0.3Mpa, and the concentrated water displaced volume of counter-infiltration is produce water volume 1/3；Described absorbent filter medium is by according to weight
The following component of amount part meter is constituted：20 parts of volcanic rock, 120 parts of modified activated carbon, 10 parts of activated alumina, kaolin clay 10
Part, 5 parts of cationic ion-exchange resin；
Described modified activated carbon is to be prepared via a method which to obtain：
By weight, 60 parts of coconut palm fruit case fibre is taken, smalls is ground into, then 10 parts of sodium hydroxide, water with 20 parts and 20
The ethanol of part is well mixed；Then mixture is placed in tube furnace, in a nitrogen atmosphere, heating charing, the ginseng of carbonization
Number is：10 DEG C/min of heating rate, 1200 DEG C of carbonization temperature, carbonization time 3 hours；Ball milling is carried out after letting cool, then it is dense with quality
The citric acid solution washing for 5% is spent, then with pure water to neutrality, after drying, is ground, obtains modified activated carbon.
Embodiment 2
Running water is first passed around into quartz sand filtration processing, then the production water that sand filtration is obtained is sent into absorbent filter medium and carried out
Filter is handled；The water outlet of absorbent filter medium is re-fed into cellulose acetate reverse osmosis film and carries out filtration treatment；Reverse osmosis membrane is in filter process
In, pressure is 0.3Mpa, and the concentrated water displaced volume of counter-infiltration is produce water volume 1/3；Described absorbent filter medium is by according to weight
The following component of amount part meter is constituted：40 parts of volcanic rock, 150 parts of modified activated carbon, 20 parts of activated alumina, kaolin clay 20
Part, 10 parts of cationic ion-exchange resin；
Described modified activated carbon is to be prepared via a method which to obtain：
By weight, 80 parts of coconut palm fruit case fibre is taken, smalls is ground into, then 20 parts of sodium hydroxide, water with 25 parts and 30
The ethanol of part is well mixed；Then mixture is placed in tube furnace, in a nitrogen atmosphere, heating charing, the ginseng of carbonization
Number is：10 DEG C/min of heating rate, 1200 DEG C of carbonization temperature, carbonization time 5 hours；Ball milling is carried out after letting cool, then it is dense with quality
The citric acid solution washing for 5% is spent, then with pure water to neutrality, after drying, is ground, obtains modified activated carbon.
Embodiment 3
Running water is first passed around into quartz sand filtration processing, then the production water that sand filtration is obtained is sent into absorbent filter medium and carried out
Filter is handled；The water outlet of absorbent filter medium is re-fed into cellulose acetate reverse osmosis film and carries out filtration treatment；Reverse osmosis membrane is in filter process
In, pressure is 0.3Mpa, and the concentrated water displaced volume of counter-infiltration is produce water volume 1/3；Described absorbent filter medium is by according to weight
The following component of amount part meter is constituted：30 parts of volcanic rock, 130 parts of modified activated carbon, 15 parts of activated alumina, kaolin clay 16
Part, 8 parts of cationic ion-exchange resin；
Described modified activated carbon is to be prepared via a method which to obtain：
By weight, 70 parts of coconut palm fruit case fibre is taken, smalls is ground into, then 15 parts of sodium hydroxide, water with 22 parts and 25
The ethanol of part is well mixed；Then mixture is placed in tube furnace, in a nitrogen atmosphere, heating charing, the ginseng of carbonization
Number is：7 DEG C/min of heating rate, 1150 DEG C of carbonization temperature, carbonization time 4 hours；Ball milling is carried out after letting cool, then uses mass concentration
Washed for 5% citric acid solution, then with pure water to neutrality, after drying, be ground, obtain modified activated carbon.
Reference examples 1
Difference with embodiment 3 is：In the preparation of modified activated carbon, sodium hydroxide is not added.
Running water is first passed around into quartz sand filtration processing, then the production water that sand filtration is obtained is sent into absorbent filter medium and carried out
Filter is handled；The water outlet of absorbent filter medium is re-fed into cellulose acetate reverse osmosis film and carries out filtration treatment；Reverse osmosis membrane is in filter process
In, pressure is 0.3Mpa, and the concentrated water displaced volume of counter-infiltration is produce water volume 1/3；Described absorbent filter medium is by according to weight
The following component of amount part meter is constituted：30 parts of volcanic rock, 130 parts of modified activated carbon, 15 parts of activated alumina, kaolin clay 16
Part, 8 parts of cationic ion-exchange resin；
Described modified activated carbon is to be prepared via a method which to obtain：
By weight, 70 parts of coconut palm fruit case fibre is taken, smalls is ground into, then mixed with the ethanol of 15 parts and 25 parts of water
It is even；Then mixture is placed in tube furnace, in a nitrogen atmosphere, heating is carbonized, and the parameter of carbonization is：Heating rate 7
DEG C/min, 1150 DEG C of carbonization temperature, carbonization time 4 hours；Ball milling is carried out after letting cool, then it is molten for 5% citric acid with mass concentration
Liquid is washed, then with pure water to neutrality, after drying, is ground, is obtained modified activated carbon.
Reference examples 2
Difference with embodiment 3 is：In the preparation of modified activated carbon, water is not added.
Running water is first passed around into quartz sand filtration processing, then the production water that sand filtration is obtained is sent into absorbent filter medium and carried out
Filter is handled；The water outlet of absorbent filter medium is re-fed into cellulose acetate reverse osmosis film and carries out filtration treatment；Reverse osmosis membrane is in filter process
In, pressure is 0.3Mpa, and the concentrated water displaced volume of counter-infiltration is produce water volume 1/3；Described absorbent filter medium is by according to weight
The following component of amount part meter is constituted：30 parts of volcanic rock, 130 parts of modified activated carbon, 15 parts of activated alumina, kaolin clay 16
Part, 8 parts of cationic ion-exchange resin；
Described modified activated carbon is to be prepared via a method which to obtain：
By weight, 70 parts of coconut palm fruit case fibre is taken, smalls, then sodium hydroxide part and 25 parts of second with 22 parts is ground into
Alcohol is well mixed；Then mixture is placed in tube furnace, in a nitrogen atmosphere, heating is carbonized, and the parameter of carbonization is：Rise
Warm 7 DEG C/min of speed, 1150 DEG C of carbonization temperature, carbonization time 4 hours；Carry out ball milling after letting cool, then with mass concentration be 5%
Citric acid solution is washed, then with pure water to neutrality, after drying, is ground, is obtained modified activated carbon.
The water quality situation of the running water used in above example and reference examples is as follows：
| Index | Water quality |
| pH | 7.4 |
| SS mg/L | 57 |
| Hardness mg/L | 163.4 |
| COD mg/L | 17 |
| Electrical conductivity μ s/cm | 1482 |
Originally aquatic products regimen condition after treatment is as follows, in addition, the run time of reverse osmosis membrane was controlled at 20 hours,
Re-record the reverse osmosis membrane flux situation before and after operation：
As can be seen from the table, when being 1/3 operation for producing water discharge capacity using concentrated water drainage, the system that the present invention is provided
Water method still can keep the water quality of the preferable flux of reverse osmosis membrane and production water after 20 hours；In reference examples 1 due to
NaOH is not added in the preparation process of activated carbon, causes that preferable microscopic spaces, shadow can not be formed in the structure of activated carbon
Sound has arrived adsorption effect；Due to not adding water in reference examples 2, NaOH poor dispersion is result in, it has been had influence on and has expanded
Effect in activated carbon capillary.
Claims (1)
1. a kind of saving type RO pure water production method, it is characterised in that comprise the following steps：
Running water is first passed around into quartz sand filtration processing, then the production water that sand filtration is obtained is sent into absorbent filter medium and carried out at filtering
Reason；The water outlet of absorbent filter medium is re-fed into cellulose acetate reverse osmosis film and carries out filtration treatment；Reverse osmosis membrane is in filter process, pressure
Power is 0.3Mpa, and the concentrated water displaced volume of counter-infiltration is produce water volume 1/3；Described absorbent filter medium is by parts by weight
Following component constituted：30 parts of volcanic rock, 130 parts of modified activated carbon, 15 parts of activated alumina, 16 parts of kaolin clay, sun
8 parts of ion exchange resin；
Described modified activated carbon is to be prepared via a method which to obtain：
By weight, 70 parts of coconut palm fruit case fibre is taken, smalls is ground into, then 15 parts and 25 parts of sodium hydroxide, the water with 22 parts
Ethanol is well mixed；Then mixture is placed in tube furnace, in a nitrogen atmosphere, heating is carbonized, and the parameter of carbonization is：
7 DEG C/min of heating rate, 1150 DEG C of carbonization temperature, carbonization time 4 hours；Carry out ball milling after letting cool, then with mass concentration be 5%
Citric acid solution washing, then with pure water to neutrality, after drying, be ground, obtain modified activated carbon.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125703A (en) * | 2007-07-31 | 2008-02-20 | 中国石油大学(华东) | Method for degrading polyoxyethylene-fatty alcohol ether in water by active carbon fibre-ozone |
| CN102107994A (en) * | 2010-12-23 | 2011-06-29 | 郑高宽 | Device for filtering various water sources into direct drinking water |
| CN204490644U (en) * | 2015-01-27 | 2015-07-22 | 潍坊海纳尔电气有限公司 | A kind of intelligent reverse-osmosis pure water water equipment |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125703A (en) * | 2007-07-31 | 2008-02-20 | 中国石油大学(华东) | Method for degrading polyoxyethylene-fatty alcohol ether in water by active carbon fibre-ozone |
| CN102107994A (en) * | 2010-12-23 | 2011-06-29 | 郑高宽 | Device for filtering various water sources into direct drinking water |
| CN204490644U (en) * | 2015-01-27 | 2015-07-22 | 潍坊海纳尔电气有限公司 | A kind of intelligent reverse-osmosis pure water water equipment |
Non-Patent Citations (1)
| Title |
|---|
| 不同状态甲醇改性活性炭对其表面性质及葡萄糖加氢Ru/C催化性能的影响;徐三魁等;《河南工业大学学报（自然科学版）》;20110831;第32卷(第4期);第21-26页 * |
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Inventor after: Zhao Lijun Inventor after: Xu Shanwen Inventor before: Song Jiezhen |
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Effective date of registration: 20170905 Address after: 150000, Heilongjiang province Harbin Development Zone Yingbin Road concentration zone Jianghu Road, Castle Peak Road Applicant after: Harbin Institute of Technology environmental Limited by Share Ltd Address before: 644302, Sichuan County, Yibin Province, Sichuan province Changning County town of Changfeng Village 1 groups Applicant before: Song Jiezhen |
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Address after: Room 2605, No.368, Changjiang Road, Nangang concentration area, Harbin Economic Development Zone, Harbin City, Heilongjiang Province Patentee after: Industrial University environment Co.,Ltd. Address before: 150000 Heilongjiang Harbin Development Zone Yingbin Road concentration area Jianghu Road, Qingshan Road Patentee before: Harbin Institute of Technology environmental Limited by Share Ltd. |