CN108114608A - A kind of cleaning agent and cleaning method for handling oily waste water tubular ceramic membrane - Google Patents
A kind of cleaning agent and cleaning method for handling oily waste water tubular ceramic membrane Download PDFInfo
- Publication number
- CN108114608A CN108114608A CN201810147026.7A CN201810147026A CN108114608A CN 108114608 A CN108114608 A CN 108114608A CN 201810147026 A CN201810147026 A CN 201810147026A CN 108114608 A CN108114608 A CN 108114608A
- Authority
- CN
- China
- Prior art keywords
- cleaning
- ceramic membrane
- tubular ceramic
- waste water
- oily waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/04—Tubular membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/162—Use of acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/16—Use of chemical agents
- B01D2321/164—Use of bases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/28—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling by soaking or impregnating
-
- 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
- C02F2101/32—Hydrocarbons, e.g. oil
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of cleaning agent and cleaning method for handling oily waste water tubular ceramic membrane, including acidic cleaner and alkaline cleaner；Acidic cleaner is strong acid solution；Alkaline cleaner is made of NaOH, ethylenediamine tetra-acetic acid and neopelex.Chemical activity is poor under low temperature, improves unobvious more than its activity after certain temperature, equipment energy consumption is again excessive, the experiment proved that temperature is at 30 DEG C or so at 60 DEG C or so, pickling for temperature during alkali cleaning, cleaning performance at this moment is preferable, and energy consumption is moderate.The technical program can effectively remove the blocking of tubular ceramic membrane oily substance by the formula and cleaning method of cleaning agent, and restorer uses ability.
Description
Technical field
The invention belongs to environmental technology field, particularly relate to a kind of handle the clear of the tubular ceramic membrane in oily waste water process
Lotion and cleaning method.
Background technology
Ceramic membrane is one kind of inoranic membrane, belongs to the solid membrane material in membrane separation technique, and ceramic membrane is generally divided into tubular type
Two kinds of ceramic membrane and ceramic membrane.
Tubular ceramic membrane tube wall gathers micropore, applies certain pressure in film both sides, when water flows through film surface, in trap water
The macromolecular substances such as suspended matter, colloid, microorganism, water, inorganic salts and a small-molecule substance are only permitted through film, to reach solution
Purification, separation, concentration purpose.
Ceramic membrane in use, since the impurity being trapped constantly accumulates on the surface of the film, can generate concentration polarization
Phenomenon generates gel layer when film surface solute concentration reaches a certain limit, is gradually reduced the throughput of film, therefore to ceramics
Film is effectively cleaned, and removes film surface impurity, is very important to recovering ceramic membrane using function.Cleaning is divided into clear water
Wash, alkali cleaning, pickling, to remove different impurity, selected according to different cleaning agent, water temperature selection, cleaning performance is also not
The same.
In the prior art, the mordant of the tubular ceramic membrane to handling oily waste water uses citric acid more, and alkali cleaning agent is simple
Using strong base substance；The acidity of citric acid is relatively low, limited for insoluble inorganic salts removal ability；Highly basic is used merely,
Such as only use NaOH, it is impossible to which removal well is insoluble in the calcium and magnesium iron compound of water, and it is for the grease type in oily waste water
Substance removal ability is limited.
Meanwhile the cleaning method of the prior art all carries out at normal temperatures, the activity of chemical is not high under room temperature,
Cannot play its cleaning ability to the greatest extent, the activity of general chemical within the specific limits with the rise of water temperature and
Improve, if but be more than certain temperature, the decomposition of chemical accelerates, and influences cleaning performance instead.
The content of the invention
The object of the present invention is to provide a kind of cleaning agent and cleaning method for handling oily waste water tubular ceramic membrane, to solve
The problem of cleaning ability of prior art cleaning agent is insufficient.
The present invention is achieved by the following technical solutions：
A kind of cleaning agent for handling oily waste water tubular ceramic membrane, including acidic cleaner and alkaline cleaner；
The acidic cleaner is strong acid solution；
The alkaline cleaner is made of NaOH, ethylenediamine tetra-acetic acid and neopelex.
The strong acid solution is salpeter solution, and the mass concentration of the salpeter solution is 1%.
The composition of the alkaline cleaner by mass percentage is：
NaOH is 1%, ethylenediamine tetra-acetic acid 1%, neopelex 0.5%, and surplus is water.
A kind of cleaning method for handling oily waste water tubular ceramic membrane, using the cleaning agent of any of the above-described, including following
Step：
1) tubular ceramic membrane is rinsed 30 minutes using room temperature clear water；
2) tubular ceramic membrane after flushing is cleaned 30 minutes using 30 DEG C of acidic cleaner；
3) will be rinsed 30 minutes using room temperature clear water by the tubular ceramic membrane of acidic cleaner cleaning；
4) when small using 60 DEG C of alkaline cleaner cleaning 1；
5) using room temperature clear water by the tubular ceramic Membrane cleaning 30 minutes, to neutrality.
Cleaning in step 2) includes embathing or rinsing.
In cleaning process, the cleaning of each step carries out in cleaning case, and the cleaning case includes a filtered water tank and one
A cleaning agent case；
The cleaning agent case is used alternatingly for acidic cleaner with alkaline cleaner.
The beneficial effects of the invention are as follows：
The technical program can effectively remove tubular ceramic membrane oily substance by the formula and cleaning method of cleaning agent
Blocking, restorer use ability.
Specific embodiment
Carry out the technical solution that the present invention will be described in detail below by way of specific embodiment, following embodiment is only exemplary
, it is only capable of for explanation and illustration technical scheme, and it is not to be construed as the limitation to technical solution of the present invention.
The pending tubular ceramic membrane of the application is the tubular ceramic membrane blocked by oily waste water.And the technical side of the application
Case is only applicable to the cleaning cleaning agent and cleaning method of the tubular ceramic membrane blocked by oily waste water.Oily waste water in the application
In generally ingredients, this pollutant containing mineral oil, aliphatic acid, surfactant, microorganism, emulsifier and lubricating oil etc. be mainly
Organic principle, feature molecular weight is big, easily blocks ceramic fenestra, and indissoluble solution, cleaning difficulty are big.
The application provides a kind of cleaning agent for handling oily waste water tubular ceramic membrane, is cleaned including acidic cleaner and alkalescence
Agent.
Acidic cleaner is strong acid solution；Strong acid solution is salpeter solution, and the mass concentration of salpeter solution is 1%.Nitric acid
With strong oxidizing property, a part of indissoluble inorganic substances in oiliness pollutant is made to become solable matter.
Alkaline cleaner is made of NaOH, ethylenediamine tetra-acetic acid (EDTA) and neopelex (SDBS).
The composition of alkaline cleaner by mass percentage is：
NaOH is 1%, ethylenediamine tetra-acetic acid 1%, neopelex 0.5%, and surplus is water.
EDTA is a kind of excellent calcium ions and magnesium ions chelating agent, removes the metal ions such as calcium, magnesium, iron, zinc, copper, it can be dissolved in
Sodium hydroxide.SDBS has particulate fouling, albumen dirt, oily dirt significant clean effect, but its resistance to hard water is poor, goes
Dirty performance is reduced with the hardness of water, its general use will be with appropriate chelating agent adapted, it is with EDTA with the use of just.
Chemical activity is poor under low temperature, and unobvious, equipment energy consumption and mistake are improved more than its activity after certain temperature
Greatly, the experiment proved that temperature is at 30 DEG C or so at 60 DEG C or so, pickling for temperature during alkali cleaning, cleaning performance at this moment is preferable, energy
It consumes moderate.
The application also provides a kind of cleaning method for handling oily waste water tubular ceramic membrane, uses the cleaning of any of the above-described
Agent comprises the following steps：
1) tubular ceramic membrane is rinsed 30 minutes using room temperature clear water；
2) tubular ceramic membrane after flushing is cleaned 30 minutes using 30 DEG C of acidic cleaner；
3) will be rinsed 30 minutes using room temperature clear water by the tubular ceramic membrane of acidic cleaner cleaning；
4) when small using 60 DEG C of alkaline cleaner cleaning 1；
5) using room temperature clear water by tubular ceramic Membrane cleaning 30 minutes, to neutrality.
Cleaning in step 2) includes embathing or rinsing.
In cleaning process, the cleaning of each step carries out in cleaning case, and cleaning case includes a filtered water tank and one clear
Lotion case；
Cleaning agent case is used alternatingly for acidic cleaner with alkaline cleaner.Exhaust-valve is set in cleaning case bottom, often
Water tank is thoroughly cleaned after primary chemical cleaning in time, avoids pollution next batch cleaning agent.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And deformation, the scope of the present invention are extremely equally limited by appended claims.
Claims (6)
1. a kind of cleaning agent for handling oily waste water tubular ceramic membrane, which is characterized in that cleaned including acidic cleaner and alkalescence
Agent；
The acidic cleaner is strong acid solution；
The alkaline cleaner is made of NaOH, ethylenediamine tetra-acetic acid and neopelex.
2. the cleaning agent of processing oily waste water tubular ceramic membrane according to claim 1, which is characterized in that the strong acid is molten
Liquid is salpeter solution, and the mass concentration of the salpeter solution is 1%.
3. the cleaning agent of processing oily waste water tubular ceramic membrane according to claim 1, which is characterized in that the alkalescence is clear
The composition of lotion by mass percentage is：
NaOH is 1%, ethylenediamine tetra-acetic acid 1%, neopelex 0.5%, and surplus is water.
4. a kind of cleaning method for handling oily waste water tubular ceramic membrane, uses the cleaning of any one of the claims 1 to 3
Agent, which is characterized in that comprise the following steps：
1) tubular ceramic membrane is rinsed 30 minutes using room temperature clear water；
2) tubular ceramic membrane after flushing is cleaned 30 minutes using 30 DEG C of acidic cleaner；
3) will be rinsed 30 minutes using room temperature clear water by the tubular ceramic membrane of acidic cleaner cleaning；
4) when small using 60 DEG C of alkaline cleaner cleaning 1；
5) using room temperature clear water by the tubular ceramic Membrane cleaning 30 minutes, to neutrality.
5. the cleaning method of processing oily waste water tubular ceramic membrane according to claim 4, which is characterized in that in step 2)
Cleaning include embathe or rinse.
6. the cleaning method of processing oily waste water tubular ceramic membrane according to claim 4, which is characterized in that cleaning process
In, the cleaning of each step carries out in cleaning case, and the cleaning case includes a filtered water tank and a cleaning agent case；
The cleaning agent case is used alternatingly for acidic cleaner with alkaline cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147026.7A CN108114608A (en) | 2018-02-12 | 2018-02-12 | A kind of cleaning agent and cleaning method for handling oily waste water tubular ceramic membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147026.7A CN108114608A (en) | 2018-02-12 | 2018-02-12 | A kind of cleaning agent and cleaning method for handling oily waste water tubular ceramic membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108114608A true CN108114608A (en) | 2018-06-05 |
Family
ID=62234361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810147026.7A Pending CN108114608A (en) | 2018-02-12 | 2018-02-12 | A kind of cleaning agent and cleaning method for handling oily waste water tubular ceramic membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108114608A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111467966A (en) * | 2020-03-27 | 2020-07-31 | 江苏永葆环保科技有限公司 | Composite reagent for cleaning tubular membrane polluted by oil and cleaning method using composite reagent |
| CN113289495A (en) * | 2021-06-11 | 2021-08-24 | 湖北中烟工业有限责任公司 | Method for treating ceramic membrane cleaning solution of oil-containing substance |
| CN113304616A (en) * | 2021-06-08 | 2021-08-27 | 徐州禹慧环境科技研究院有限公司 | Hollow fiber ultrafiltration membrane cleaning agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489161A (en) * | 2011-12-16 | 2012-06-13 | 上海久安水质稳定剂厂 | Ceramic membrane cleaning agent used for separating emulsion and manufacturing method of same |
| CN103127836A (en) * | 2011-11-30 | 2013-06-05 | 上海梅山钢铁股份有限公司 | Ceramic membrane cleaning agent |
| CN103551043A (en) * | 2013-11-06 | 2014-02-05 | 中国石油化工股份有限公司 | Cleaning method of ceramic membrane |
-
2018
- 2018-02-12 CN CN201810147026.7A patent/CN108114608A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103127836A (en) * | 2011-11-30 | 2013-06-05 | 上海梅山钢铁股份有限公司 | Ceramic membrane cleaning agent |
| CN102489161A (en) * | 2011-12-16 | 2012-06-13 | 上海久安水质稳定剂厂 | Ceramic membrane cleaning agent used for separating emulsion and manufacturing method of same |
| CN103551043A (en) * | 2013-11-06 | 2014-02-05 | 中国石油化工股份有限公司 | Cleaning method of ceramic membrane |
Non-Patent Citations (2)
| Title |
|---|
| 沈尧烈等: "《机械的清洗》", 31 May 1989, 农业出版社 * |
| 胡广林等: "《分析化学》", 30 November 2017, 中国农业大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111467966A (en) * | 2020-03-27 | 2020-07-31 | 江苏永葆环保科技有限公司 | Composite reagent for cleaning tubular membrane polluted by oil and cleaning method using composite reagent |
| CN113304616A (en) * | 2021-06-08 | 2021-08-27 | 徐州禹慧环境科技研究院有限公司 | Hollow fiber ultrafiltration membrane cleaning agent |
| CN113289495A (en) * | 2021-06-11 | 2021-08-24 | 湖北中烟工业有限责任公司 | Method for treating ceramic membrane cleaning solution of oil-containing substance |
| CN113289495B (en) * | 2021-06-11 | 2022-04-29 | 湖北中烟工业有限责任公司 | Method for treating ceramic membrane cleaning solution of oil-containing substance |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180605 |