CN106007081A - Ink wastewater efficient treatment process - Google Patents
Ink wastewater efficient treatment process Download PDFInfo
- Publication number
- CN106007081A CN106007081A CN201610521165.2A CN201610521165A CN106007081A CN 106007081 A CN106007081 A CN 106007081A CN 201610521165 A CN201610521165 A CN 201610521165A CN 106007081 A CN106007081 A CN 106007081A
- Authority
- CN
- China
- Prior art keywords
- printing ink
- ink wastewater
- membrane
- acid
- treatment
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
Abstract
The invention discloses an ink wastewater efficient treatment process, and belongs to the technical field of wastewater treatment. The process includes the following steps of firstly, acidification pretreatment of ink wastewater, wherein acid is added to raw ink wastewater to adjust solution pH to be 3-5 for use; secondly, ultrafiltration treatment of a special inorganic membrane, wherein a mud and water mixed solution evenly stirred in the first step is subjected to ultrafiltration treatment through a special ultrafiltration membrane assembly, and produced clear liquid is reserved for use; thirdly, reverse osmosis treatment, wherein the clear liquid in the second step is subjected to reverse osmosis treatment through a reserves osmosis membrane assembly, clear liquid output through a liquid outlet is final output liquid, concentrated liquid output through a concentrated liquid outlet flows back to the second step to be subjected to ultrafiltration treatment again, and then the output liquid reaches the national emission standard. The invention provides a method which has a good treatment effect on ink wastewater, has wide applicability and is suitable for up-to-standard emission and reuse of various types of ink wastewater.
Description
Technical field
The present invention relates to technical field of waste water processing, particularly relate to a kind of printing ink wastewater efficient treatment process.
Background technology
Produce at water color ink and in application process, a certain amount of printing ink wastewater can be produced.Printing ink wastewater chemical composition is considerably complicated, has high chemical oxygen demand (CODCr), high chroma, biodegradability difference etc. feature, the generally COD of printing ink wastewaterCrMore than 20000mg/L, colourity is high can reach more than 100000 times, once enters water body, water ecological setting can be constituted extremely serious threat.The traditional handicraft processing main employing chemical coagulation pretreatment+biochemical treatment of printing ink wastewater at present.Owing in printing ink wastewater, major part pollutant water solublity is relatively strong, needed for will reaching preferable coagulating sedimentation effect, coagulant charging quantity is relatively big, and produces the materialized mud that a large amount of moisture content is high.Poor (the BOD of printing ink wastewater biodegradability5/CODCrLow), conventional biological treatment is limited to the removal ability of poisonous and harmful refractory organic, therefore the highest (the COD of content of organics in biochemical treatment water outletCrUp to hundreds of mg/L), ammonia nitrogen, total nitrogen, total phosphorus equal size are the highest simultaneously, it is difficult to the direct emission limit being up to state standards in " ink industry pollution discharge standard " GB25463-2010 requires (CODCr≤ 150mg/L, ammonia nitrogen≤15mg/L, total nitrogen≤50mg/L, total phosphorus≤1.0mg/L).Therefore must seek more economically high efficient technology printing ink wastewater is processed, to meet the qualified discharge to printing ink wastewater and the demand of reuse.
Summary of the invention
The present invention seeks to for coagulation pretreatment-biochemical process deficiency on printing ink wastewater treatment effect, it is provided that a kind of have good treatment effect for printing ink wastewater, and has the method being suitable to various printing ink wastewater are carried out qualified discharge and reuse of broad applicability.
The concrete technical scheme of the present invention is as follows:
Printing ink wastewater efficient treatment process, this technique sequentially includes the following steps:
(1) the acid out pretreatment of printing ink wastewater: add acid-conditioning solution pH to 3-5 in the former water of printing ink wastewater, standby；
(2) specialty inorganic membrane ultrafiltration processes: muddy water mixed solution step (1) stirred carries out hyperfiltration treatment by extraordinary hyperfiltration membrane assembly, and the clear liquid of output is standby；
(3) reverse-osmosis treated: by reverse osmosis membrane assembly, the clear liquid of step (2) is carried out reverse-osmosis treated, the clear liquid of permeate outlet output is final outflow water, and the dope of concentrated solution outlet output is back to step (2) and carries out hyperfiltration treatment again；The COD of water outletCr≤ 150mg/L, ammonia nitrogen≤15mg/L, total nitrogen≤50mg/L, total phosphorus≤1.0mg/L, i.e. reach the discharge standard of country.
The method of the present invention is further arranged to: printing ink wastewater of the present invention refers to waste water produced by cleaning equipment in Printing ink producing and application process, including printing ink wastewater, printing wastewater, packaging waste water.
The method of the present invention is further arranged to: the acid in described step (1) refers to the compound, including sulphuric acid, hydrochloric acid, nitric acid, citric acid, oxalic acid of one or more of inorganic or organic acid.
The method of the present invention is further arranged to: the aperture of above-mentioned extraordinary hyperfiltration membrane assembly is 5-100nm, and it processes 1.0m per hour3Needed for waste water, the membrane area of extraordinary ultrafilter membrane is 2-10m2, the operating pressure scope of membrane module is 0.2-0.4MPa.
The method of the present invention is further arranged to: the specialty inorganic ultrafilter membrane of described extraordinary hyperfiltration membrane assembly uses the cross flow filter mode operation different from conventional hollow fiber ultrafiltration membrane dead-end filtration.
The method of the present invention is further arranged to: described reverse osmosis membrane assembly carries out reverse-osmosis treated and processes 1.0m per hour3Needed for waste water, the membrane area of reverse osmosis membrane is 65-130m2, the operating pressure scope of membrane module is 1.0-2.0MPa.
The invention have the advantages that:
1, the present invention uses acid out pretreatment to instead of the coagulation treatment of routine, hydrophilic organics hydrophilicity molecules a large amount of in waste water is converted into hydrophobic organic compound thus precipitation from aqueous phase, it is to avoid add a large amount of chemical coagulator and produce extra chemical sludge.
2, the cross flow filter of specialty inorganic ultrafilter membrane is used due to present invention process, compared with tradition organic hollow fibrous membrane ultrafiltration, there is the advantages such as effluent flux high, chemical stability is good, cleaning frequency is low, length in service life, can efficiently separate the hydrophobicity in printing ink wastewater and macromole hydrophilic organics hydrophilicity, SS is thoroughly removed.
3, the settling of floccus poor performance that printing ink wastewater is formed due to it after conventional coagulation treatment, so needing the enough time that staticly settles to ensure sufficient mud-water separation effect；And present invention process is owing to using the cross flow filter of specialty inorganic ultrafilter membrane to have, and contamination resistance is strong and separation efficiency advantages of higher, after acid out, can directly carry out hyperfiltration treatment without carrying out precipitation.
4, compared with the materialized mud that conventional chemical coagulating treatment is formed, concentrating, through specialty inorganic ultrafilter membrane, the sludge volume formed less after acid out, moisture content is lower.
The a complete set of printing ink wastewater combined treatment process of 5, acid out pretreatment-specialty inorganic filtration-reverse osmosis is simple to operate, Automatic Control, and operation maintenance is convenient；The effluent quality four seasons are stable, not by low temperature effect, up to standard and can reuse；Occupation area of equipment is little.
Detailed description of the invention
Below by following example, the present invention is described in further detail, but present disclosure is not limited thereto.
Explanation to material involved by following example:
Citric acid: product content 99.8%, technical grade, GB/T8269-2006；
Oxalic acid: product content 99.6%, technical grade, GB/T1626-2008；
Sulphuric acid: product content 98.0%, technical grade, GB/T534-02.
Embodiment 1:
(1) the acid out pretreatment of printing ink wastewater: add citric acid regulating solution pH to 5.0 in the former water of printing ink wastewater, standby；
(2) specialty inorganic membrane ultrafiltration processes: muddy water mixed solution step (1) stirred uses extraordinary hyperfiltration technique to process, treating capacity 1.0m3/ h, ultrafilter membrane aperture 5nm, ultrafilter membrane area 10m2, operating pressure 0.4MPa, water outlet CODCr≤ 800mg/L, ammonia nitrogen≤200mg/L, total phosphorus≤2mg/L, standby；
(3) reverse-osmosis treated: use reverse osmosis technology to process the water outlet of step (2), treating capacity 1.0m3/ h, reverse osmosis membrane area 130m2, operating pressure 1.0MPa, water outlet CODCr≤ 100mg/L, ammonia nitrogen≤15mg/L, total nitrogen≤40mg/L, total phosphorus≤0.1mg/L, the most up to standard.
Embodiment 2:
(1) the acid out pretreatment of printing ink wastewater: addition oxalic acid regulation pH value of solution is to 4.0 in the former water of printing ink wastewater, standby；
(2) specialty inorganic membrane ultrafiltration processes: muddy water mixed solution step (1) stirred uses extraordinary hyperfiltration technique to process, treating capacity 1.0m3/ h, ultrafilter membrane aperture 50nm, ultrafilter membrane area 5m2, operating pressure 0.2MPa, water outlet CODCr≤ 1000mg/L, ammonia nitrogen≤400mg/L, total phosphorus≤5mg/L, standby；
(3) reverse-osmosis treated: use reverse osmosis technology to process the water outlet of step (2), treating capacity 1.0m3/ h, reverse osmosis membrane area 100m2, operating pressure 1.5MPa, water outlet CODCr≤ 150mg/L, ammonia nitrogen≤15mg/L, total nitrogen≤50mg/L, total phosphorus≤0.1mg/L, the most up to standard.
Embodiment 3:
(1) the acid out pretreatment of printing ink wastewater: add sulfuric acid regulation solution pH to 3.0 in the former water of printing ink wastewater, standby；
(2) specialty inorganic membrane ultrafiltration processes: muddy water mixed solution step (1) stirred uses extraordinary hyperfiltration technique to process, treating capacity 1.0m3/ h, ultrafilter membrane aperture 100nm, ultrafilter membrane area 2m2, operating pressure 0.3MPa, water outlet CODCr≤ 1500mg/L, ammonia nitrogen≤500mg/L, total phosphorus≤10mg/L, standby；
(3) reverse-osmosis treated: use reverse osmosis technology to process the water outlet of step (2), treating capacity 1.0m3/ h, reverse osmosis membrane area 65m2, operating pressure 2.0MPa, water outlet CODCr≤ 150mg/L, ammonia nitrogen≤15mg/L, total nitrogen≤50mg/L, total phosphorus≤0.1mg/L, the most up to standard.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (6)
1. printing ink wastewater efficient treatment process, it is characterised in that: this technique sequentially includes the following steps:
(1) the acid out pretreatment of printing ink wastewater: add acid-conditioning solution pH to 3-5 in the former water of printing ink wastewater, standby；
(2) specialty inorganic membrane ultrafiltration processes: muddy water mixed solution step (1) stirred carries out hyperfiltration treatment by extraordinary hyperfiltration membrane assembly, and the clear liquid of output is standby；
(3) reverse-osmosis treated: by reverse osmosis membrane assembly, the clear liquid of step (2) is carried out reverse-osmosis treated, the clear liquid of permeate outlet output is final outflow water, and the dope of concentrated solution outlet output is back to step (2) and carries out hyperfiltration treatment again；The COD of water outletCr≤ 150mg/L, ammonia nitrogen≤15mg/L, total nitrogen≤50mg/L, total phosphorus≤1.0mg/L, i.e. reach the discharge standard of country.
Printing ink wastewater efficient treatment process the most according to claim 1, it is characterised in that: printing ink wastewater of the present invention refers to waste water produced by cleaning equipment in Printing ink producing and application process, including printing ink wastewater, printing wastewater, packaging waste water.
Printing ink wastewater efficient treatment process the most according to claim 1 and 2, it is characterised in that: the acid in described step (1) refers to the compound, including sulphuric acid, hydrochloric acid, nitric acid, citric acid, oxalic acid of one or more of inorganic or organic acid.
Printing ink wastewater efficient treatment process the most according to claim 1, it is characterised in that: the aperture of above-mentioned extraordinary hyperfiltration membrane assembly is 5-100nm, and it processes 1.0m per hour3Needed for waste water, the membrane area of extraordinary ultrafilter membrane is 2-10m2, the operating pressure scope of membrane module is 0.2-0.4MPa.
Printing ink wastewater efficient treatment process the most according to claim 1, it is characterised in that: the Inorganic Ultrafiltration Membrane of described extraordinary hyperfiltration membrane assembly uses the cross flow filter mode operation different from conventional organic hollow fiber ultrafiltration membrane dead-end filtration.
Printing ink wastewater efficient treatment process the most according to claim 1, it is characterised in that: described reverse osmosis membrane assembly carries out reverse-osmosis treated and processes 1m per hour3Needed for waste water, the membrane area of reverse osmosis membrane is 65-130m2, the operating pressure scope of membrane module is 1.0-2.0MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521165.2A CN106007081A (en) | 2016-07-05 | 2016-07-05 | Ink wastewater efficient treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521165.2A CN106007081A (en) | 2016-07-05 | 2016-07-05 | Ink wastewater efficient treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106007081A true CN106007081A (en) | 2016-10-12 |
Family
ID=57107091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521165.2A Pending CN106007081A (en) | 2016-07-05 | 2016-07-05 | Ink wastewater efficient treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106007081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368830A (en) * | 2018-11-20 | 2019-02-22 | 江苏爱特恩高分子材料有限公司 | A kind of direct processing method of digital printing waste water |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070211A (en) * | 2006-04-05 | 2007-11-14 | 肖应东 | Circuit-board waste-water reutilizing process of reducing waste |
| CN101643298A (en) * | 2009-09-04 | 2010-02-10 | 湖南恒辉膜技术有限公司 | Organic wastewater treatment process containing membrane filtration element |
| CN103043821A (en) * | 2012-12-27 | 2013-04-17 | 苏州信望膜技术有限公司 | Deep treatment method for printing ink wastewater by membrane method |
| CN203065281U (en) * | 2012-12-27 | 2013-07-17 | 苏州信望膜技术有限公司 | Printing ink waste water deep treatment device by adopting membrane method |
| CN104860440A (en) * | 2015-05-08 | 2015-08-26 | 东莞市粤翔水处理设备有限公司 | Ink waste water treatment device |
| CN104944692A (en) * | 2015-06-10 | 2015-09-30 | 上海化学工业区中法水务发展有限公司 | Water-based ink wastewater treatment method |
-
2016
- 2016-07-05 CN CN201610521165.2A patent/CN106007081A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070211A (en) * | 2006-04-05 | 2007-11-14 | 肖应东 | Circuit-board waste-water reutilizing process of reducing waste |
| CN101643298A (en) * | 2009-09-04 | 2010-02-10 | 湖南恒辉膜技术有限公司 | Organic wastewater treatment process containing membrane filtration element |
| CN103043821A (en) * | 2012-12-27 | 2013-04-17 | 苏州信望膜技术有限公司 | Deep treatment method for printing ink wastewater by membrane method |
| CN203065281U (en) * | 2012-12-27 | 2013-07-17 | 苏州信望膜技术有限公司 | Printing ink waste water deep treatment device by adopting membrane method |
| CN104860440A (en) * | 2015-05-08 | 2015-08-26 | 东莞市粤翔水处理设备有限公司 | Ink waste water treatment device |
| CN104944692A (en) * | 2015-06-10 | 2015-09-30 | 上海化学工业区中法水务发展有限公司 | Water-based ink wastewater treatment method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368830A (en) * | 2018-11-20 | 2019-02-22 | 江苏爱特恩高分子材料有限公司 | A kind of direct processing method of digital printing waste water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lafi et al. | Treatment of textile wastewater by a hybrid ultrafiltration/electrodialysis process | |
| CN105540967B (en) | A kind of organic wastewater minimizing, recycling processing method and processing system | |
| CN106044951B (en) | Method and device for recycling industrial acidic wastewater | |
| CN109354292B (en) | Reduction treatment process for landfill leachate membrane filtration concentrated solution | |
| CN108275817A (en) | A kind of processing method of the high salinity waste water reclaiming of high rigidity | |
| CN106007201A (en) | Livestock and poultry breeding wastewater treating technology | |
| CN108017230A (en) | A kind of heavy metal waste water treatment system and method | |
| CA2905926C (en) | Process for water treatment prior to reverse osmosis | |
| CN107857438B (en) | Zero-emission process for wastewater treatment of chemical enterprises and parks | |
| CN111268819A (en) | Process and device for recycling reclaimed water in titanium dioxide acid wastewater | |
| CN102887611A (en) | Membrane-process integrated technique for implementing comprehensive wastewater zero discharge or low discharge of large-scale steel plant | |
| CN203360192U (en) | Treatment device for difficultly degradable industrial wastewater | |
| CN109516589B (en) | Process for treating coking wastewater by membrane method | |
| CN103663774A (en) | Method for treating low-concentration ammonia-containing wastewater by use of membrane separation technology | |
| CN111470731B (en) | Method and system for treating leachate of refuse landfill | |
| CN106007081A (en) | Ink wastewater efficient treatment process | |
| CN113072228A (en) | Method and system for treating salt-containing wastewater | |
| CN112979038B (en) | Zero-discharge treatment process for printing and dyeing wastewater | |
| CN206624737U (en) | A kind of organic wastewater reverse osmosis concentrated water oxidation and desalination system | |
| WO2019024701A1 (en) | Method for treating waste water from spherical nickel hydroxide production process | |
| CN111087122B (en) | Catalytic flue gas desulfurization and denitrification wastewater recycling method and device | |
| CN210367323U (en) | High concentration industry organic waste water zero release processing system | |
| JP2005046748A (en) | Treating method for organic wastewater | |
| CN113772881A (en) | Oxidation treatment method of phenol-cyanogen wastewater | |
| CN112939368A (en) | Circulating water sewage treatment and recycling method with high desalting rate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20161012 |