CN108658299A - One kind being used for reverse osmosis concentrated water organic matter removal technique - Google Patents
One kind being used for reverse osmosis concentrated water organic matter removal technique Download PDFInfo
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- CN108658299A CN108658299A CN201810571578.0A CN201810571578A CN108658299A CN 108658299 A CN108658299 A CN 108658299A CN 201810571578 A CN201810571578 A CN 201810571578A CN 108658299 A CN108658299 A CN 108658299A
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- China
- Prior art keywords
- activated carbon
- removal technique
- organic matter
- organic
- reverse osmosis
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The invention discloses one kind being used for reverse osmosis concentrated water organic matter removal technique, which first carries out oxidation reaction and remove partial organic substances mineralising, then further removes organic matter by activated carbon adsorption；Partial organic substances are carried out mineralising removing by the technique by way of combined oxidation, organic matter is further removed by activated carbon adsorption again, realize effectively removing for Organic Pollutants in Wastewater, qualified discharge, water outlet COD are less than 80mg/L, at the same time, activated carbon after absorption can also be regenerated by organic solvent, it recycles, reduces cost, the double benefit with environmental economy.
Description
Technical field
The present invention relates to advanced treatment of industrial waste water fields, and reverse osmosis concentrated water organic matter removal is used for more particularly to one kind
Technique.
Background technology
Reverse osmosis technology is widely used in waste water recycling, seawater and brackish water desalination, pure water as a kind of water treatment technology
The fields such as preparation.In waste water recycling field, 75%~85% water inlet is converted to recycle-water by reverse osmosis membrane, while all being trapped
Substance be all concentrated in the concentrated water of amount of inlet water 15%~25%, the pollutant concentration of concentrated water is about dense into water pollutant
4-6 times of degree.Reverse osmosis concentrated water is mainly characterized by salinity height, and high organic content, biodegradability is poor.Currently, both at home and abroad to anti-
The processing method for permeating concentrated water includes the methods of advanced oxidation, absorption method, electrodialysis and evaporation and concentration.Either reverse osmosis concentrated water
Qualified discharge and further recycle, be required to reduce content of organics in reverse osmosis concentrated water, but these organic matters contain
Amount is high, and degradation difficulty is big, removal efficiency is low, handles high energy consumption.Therefore, the reverse osmosis organic pollution of efficient degradation is reverse osmosis concentrated
Water qualified discharge and the key of recycling.
Invention content
In view of the above technical problems, the present invention provides one kind being used for reverse osmosis concentrated water organic matter removal technique, the technique
Partial organic substances are subjected to mineralising removing by way of combined oxidation, then organic matter is further removed by activated carbon adsorption,
It realizes wastewater through organic matter to effectively remove, at the same time, the activated carbon after absorption can also be regenerated by organic solvent, cycle profit
With, reduce cost, with environment-economy double benefit.
To solve the above-mentioned problems, the present invention uses following technical scheme：
One kind being used for reverse osmosis concentrated water organic matter removal technique, first carries out oxidation reaction and removes partial organic substances mineralising, then leads to
It crosses activated carbon adsorption and further removes organic matter, final outflow water COD is less than 80mg/L.
The oxidation reaction is carried out using combined oxidation mode, and the combined oxidation mode is to utilize ozone and dioxygen water phase
In conjunction with by the removing of reverse osmosis concentrated water part mineralization of organic material.
Water outlet after combined oxidation enters activated carbon adsorption and further removes organic matter；Pass through after the activated carbon adsorption
Organic solvent regenerates.
The solvent slop that regenerating active carbon generates reclaiming agent by the way of distillation reuses.
The organic solvent recovery time is preferably 30min ~ 120min.
The organic solvent is preferably one kind in methanol, ethyl alcohol or acetone.
It is preferably 150 ~ 300m/L that combined oxidation, which reacts influent COD, and ozone dosage is preferably 150 ~ 600mg/L, dioxygen
Water dosage is preferably 150 ~ 600mg/L.
It is preferably 0.5 ~ 3h that combined oxidation, which reacts hydraulic detention time,.
It is the 5% ~ 20% of inflow to carry out activated carbon admission space needed for activated carbon adsorption.
Adsorbent hydroxyl aluminum is 30 ~ 90min.
Compared with prior art, the invention has the advantages that：
1, the present invention provides a kind of new method of reverse osmosis concentrated water organics removal, reverse osmosis concentrated water exhaust emission ring is solved
Border and further reuse problem of pretreatment；
2, this technique realizes the regeneration cycle use of activated carbon while ensureing standard water discharge, and activated carbon can be recycled 30
More than secondary, while regenerative agent can recycle, and equipment is simple, and operability is strong, have environmental protection-economical effects, market
It has good prospects.
Description of the drawings
Fig. 1 is of the invention a kind of for reverse osmosis concentrated water organic matter removal process flow chart.
Specific implementation mode
Technical solution to further illustrate the present invention with reference to the accompanying drawings and examples:
As shown in Figure 1, a kind of being used for reverse osmosis concentrated water organic matter removal technique, oxidation reaction is first carried out by partial organic substances mineralising
Removing, then organic matter is further removed by activated carbon adsorption, final outflow water COD is less than 80mg/L.
Wherein, oxidation reaction is carried out using combined oxidation mode, and combined oxidation mode is to utilize ozone and dioxygen water phase knot
It closes, reverse osmosis concentrated water part mineralization of organic material is removed.Water outlet after combined oxidation enters activated carbon adsorption and further takes off
Except organic matter；It is regenerated by organic solvent after the activated carbon adsorption.The solvent slop that regenerating active carbon generates is using the side distilled
Formula reclaiming agent reuses.
Organic solvent is preferably one kind in methanol, ethyl alcohol or acetone, and the recovery time is preferably 30min ~ 120min,
30min、40min、50min、60min、70min、80min、90min、100min、110min、120min。
Combined oxidation react influent COD be 150 ~ 300mg/L, 150mg/L, 160mg/L, 170 mg/L, 180 mg/L,
190 mg/L、200 mg/L、210 mg/L、220 mg/L、230 mg/L、240 mg/L、260 mg/L、280 mg/L、290
mg/L、300 mg/L；
Ozone dosage is 150 ~ 600mg/L, 150 mg/L, 180 mg/L, 200 mg/L, 220 mg/L, 250 mg/L, 300
mg/L、350 mg/L、380 mg/L、400 mg/L、420 mg/L、450 mg/L、480 mg/L、500 mg/L、520 mg/L、
550 mg/L、580 mg/L、600 mg/L；
Hydrogen peroxide dosage be 150 ~ 600mg/L, 150 mg/L, 180 mg/L, 200 mg/L, 220 mg/L, 250 mg/L,
300 mg/L、350 mg/L、380 mg/L、400 mg/L、420 mg/L、450 mg/L、480 mg/L、500 mg/L、520
mg/L、550 mg/L、580 mg/L、600 mg/L；
It is 0.5 ~ 3h, 0.5h, 0.8h, 1h, 1.2h, 1.5h, 2h, 2.5h, 2.8h, 3h that combined oxidation, which reacts hydraulic detention time,.
Activated carbon adsorption activated carbon admission space is the 5% ~ 20% of inflow, 5%, 8%, 10%, 12%, 15%, 18%, 20%；It is living
Property charcoal adsorbent hydroxyl aluminum be 30 ~ 90min, 30min, 35min, 40min, 45min, 50min, 55min, 60min, 65min,
70min、75min、80min、85min、90min。
Embodiment 1
Certain coke-oven plant reverse osmosis concentrated water COD is 170mg/L, and waste water is intake combined oxidation tower first, hydraulic detention time 0.5h,
Ozone dosage is 200mg/L, and hydrogen peroxide dosage is 200mg/L, and waste water COD is reduced to 100mg/L after combined oxidation, goes out
Water enters activated carbon adsorber, and the amount that activated carbon is loaded in adsorption tower is the 10% of inflow, and the adsorption tower residence time is 30min,
Adsorption tower water outlet COD is reduced to 50mg/L, and regenerated solvent used in regenerating active carbon is methanol in adsorption tower, and the recovery time is
60min, activated carbon can be recycled 30 times or more.
Embodiment 2
Certain coal plant reverse osmosis concentrated water COD is 230mg/L, and waste water is intake combined oxidation tower first, and hydraulic detention time is
1.5h, ozone dosage 350mg/L, hydrogen peroxide dosage are 400mg/L, and waste water COD is reduced to after combined oxidation
120mg/L, water outlet enter activated carbon adsorber, and the amount that activated carbon is loaded in adsorption tower is the 15% of inflow, when adsorption tower stops
Between be 60min, adsorption tower water outlet COD is reduced to 60mg/L, and regenerated solvent used in regenerating active carbon is ethyl alcohol, regeneration in adsorption tower
Time is 90min, and activated carbon can be recycled 30 times or more.
Embodiment 3
Certain paper mill reverse osmosis concentrated water COD is 280mg/L, and waste water is intake combined oxidation tower first, hydraulic detention time 2.5h,
Ozone dosage is 500mg/L, and hydrogen peroxide dosage is 450mg/L, and waste water COD is reduced to 140mg/L after combined oxidation, goes out
Water enters activated carbon adsorber, and the amount that activated carbon is loaded in adsorption tower is the 20% of inflow, and the adsorption tower residence time is 90min,
Adsorption tower water outlet COD is reduced to 70mg/L, and regenerated solvent used in regenerating active carbon is acetone in adsorption tower, and the recovery time is
120min, activated carbon can be recycled 30 times or more.
Finally it should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although reference
Invention is explained in detail for preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution modify or equivalent replacement, without departing from the spirit of the technical scheme of the invention and range, should all cover
In the scope of the claims of the present invention.
Claims (10)
1. one kind being used for reverse osmosis concentrated water organic matter removal technique, which is characterized in that first carry out oxidation reaction by partial organic substances
Mineralising removes, then further removes organic matter by activated carbon adsorption, and final outflow water COD is less than 80mg/L.
2. removal technique as described in claim 1, which is characterized in that the oxidation reaction is carried out using combined oxidation mode,
The combined oxidation mode is to be combined using ozone and hydrogen peroxide, and reverse osmosis concentrated water part mineralization of organic material is removed.
3. removal technique as claimed in claim 2, which is characterized in that the water outlet after combined oxidation enter activated carbon adsorption into
One-step removal organic matter；It is regenerated by organic solvent after the activated carbon adsorption.
4. removal technique as claimed in claim 3, which is characterized in that the solvent slop that regenerating active carbon generates is using the side distilled
Formula reclaiming agent reuses.
5. removal technique as claimed in claim 4, which is characterized in that the organic solvent recovery time be preferably 30min ~
120min。
6. removal technique as claimed in claim 5, which is characterized in that the organic solvent is preferably methanol, ethyl alcohol or acetone
In one kind.
7. removal technique as claimed in claim 3, which is characterized in that it is preferably 150 ~ 300m/ that combined oxidation, which reacts influent COD,
L, ozone dosage are preferably 150 ~ 600mg/L, and hydrogen peroxide dosage is preferably 150 ~ 600mg/L.
8. removal technique as claimed in claim 7, which is characterized in that combined oxidation react hydraulic detention time be preferably 0.5 ~
3h。
9. system as claimed in claim 3, which is characterized in that it is water inlet to carry out activated carbon admission space needed for activated carbon adsorption
The 5% ~ 20% of amount.
10. system as claimed in claim 9, which is characterized in that adsorbent hydroxyl aluminum is 30 ~ 90min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810571578.0A CN108658299A (en) | 2018-06-06 | 2018-06-06 | One kind being used for reverse osmosis concentrated water organic matter removal technique |
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|---|---|---|---|
| CN201810571578.0A CN108658299A (en) | 2018-06-06 | 2018-06-06 | One kind being used for reverse osmosis concentrated water organic matter removal technique |
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| CN201810571578.0A Withdrawn CN108658299A (en) | 2018-06-06 | 2018-06-06 | One kind being used for reverse osmosis concentrated water organic matter removal technique |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0546268A2 (en) * | 1991-10-01 | 1993-06-16 | L. & C. Steinmüller GmbH | Purification process for aqueous fluids containing organic compounds |
| CN101041522A (en) * | 2006-03-24 | 2007-09-26 | 栗田工业株式会社 | Treating method and treating apparatus of waste water containing organic material |
| CN102616968A (en) * | 2012-04-11 | 2012-08-01 | 宜宾丝丽雅股份有限公司 | Waste alkali solution recovery method |
| CN105174641A (en) * | 2015-10-10 | 2015-12-23 | 博瑞德（南京）净化技术有限公司 | Treating technology for chemical RO concentrated water |
-
2018
- 2018-06-06 CN CN201810571578.0A patent/CN108658299A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0546268A2 (en) * | 1991-10-01 | 1993-06-16 | L. & C. Steinmüller GmbH | Purification process for aqueous fluids containing organic compounds |
| CN101041522A (en) * | 2006-03-24 | 2007-09-26 | 栗田工业株式会社 | Treating method and treating apparatus of waste water containing organic material |
| CN102616968A (en) * | 2012-04-11 | 2012-08-01 | 宜宾丝丽雅股份有限公司 | Waste alkali solution recovery method |
| CN105174641A (en) * | 2015-10-10 | 2015-12-23 | 博瑞德（南京）净化技术有限公司 | Treating technology for chemical RO concentrated water |
Non-Patent Citations (2)
| Title |
|---|
| 王宝贞: "《水污染控制工程》", 30 April 1990, 吉林教育出版社 * |
| 王琪: "《工业固体废物处理及回收利用》", 31 December 2006, 中国环境科学出版社 * |
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Application publication date: 20181016 |