CN106745517A - A kind of handling process of short fine acid waste water - Google Patents

A kind of handling process of short fine acid waste water Download PDF

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Publication number
CN106745517A
CN106745517A CN201611079443.XA CN201611079443A CN106745517A CN 106745517 A CN106745517 A CN 106745517A CN 201611079443 A CN201611079443 A CN 201611079443A CN 106745517 A CN106745517 A CN 106745517A
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CN
China
Prior art keywords
waste water
level
acid waste
handling process
short fine
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
Application number
CN201611079443.XA
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Chinese (zh)
Inventor
贺敏
梁堂
刘小军
钟伟
竭发全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yibin Grace Group Co Ltd
Original Assignee
Yibin Grace Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yibin Grace Group Co Ltd filed Critical Yibin Grace Group Co Ltd
Priority to CN201611079443.XA priority Critical patent/CN106745517A/en
Publication of CN106745517A publication Critical patent/CN106745517A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30Nature of the water, waste water, sewage or sludge to be treated from the textile industry

Abstract

The invention discloses a kind of handling process of short fine acid waste water, belong to viscose glue production technical field.The described method comprises the following steps:A. filter:After acid waste water is collected, first it is stirred, after temperature is less than 40 DEG C, is filtered;B. separate:The one-level membrane separator that the waste water for obtaining sends into aperture≤0.03 μm will be filtered, one-level filtrate and primary concentration liquid is obtained, one-level filtrate is then sent into secondary membrane separator, respectively obtain secondary concentration liquid and two grades of filtrates;C. post-process:The primary concentration liquid and secondary concentration liquid that step B is obtained are post-processed respectively;Two grades of filtrates are directly used in the washing of fiber.The present invention has method simple, and processing cost is low, water utilization rate advantage high.

Description

A kind of handling process of short fine acid waste water
Technical field
The present invention relates to a kind of handling process of short fine acid waste water, belong to viscose glue production technical field.
Background technology
Along with the rapidly quickening of urbanization process, environmental problem is increasingly serious, and the loss of resource is also very large, people Class is faced with the ecological problem constantly deteriorated in evolution.Strengthen environmental protection, energy-saving and emission-reduction, build a resource-conserving society The world is significant, this measure meets global interests, the need for being Global Sustainable Development.Industry energy conservation emission reduction work Carry out, long-term economics interests can be brought for enterprise, be the profit is in the future thousands of years for long-term development of enterprise.In the economic environment of today Under background, energy-saving and emission-reduction trend is increasingly strengthened, and this is the objective requirement built a resource-conserving and environment-friendly society, and is also Objective development trend.
In existing short fine production process, the post such as inside and outside precision, spinning, plasticizing, refining can all produce substantial amounts of acidity Waste water, current processing mode is to be emitted into cesspool to be focused on, processing mode for chemical treatment, physical treatment and its With reference to.
Publication No. CN1792858, the patent of invention of entitled " process for treating acidic waste water of viscose fibre industry " is open Method be:(1) milk of lime is delivered, water body is neutralized;(2) water body is made by grid, the larger suspension of removal particle; (3) the part sulfide in aeration stripping water body in homogeneous pond;(4) add heavy metal precipitator as zinc removing agent and FeSO4.7H2O is used as water purification agent;(5) milk of lime is delivered in neutralization pond, water PH value is adjusted to 7.6~8.8;(6) heavy By precipitating sulfide, Zn (OH) in removal water body in the pond of shallow lake2And suspension.The method processing mode is complicated, and needs add Plus substantial amounts of reagent, processing cost is high, and waste at the method in waste water does not have recycling.
The content of the invention
Present invention seek to address that the acid waste water treatment in viscose glue production process is wasted time and energy in the prior art, processing cost A kind of high the problems such as, there is provided handling process of new short fine acid waste water, by after simple filtering, through specific one-level film, After secondary membrane is separated, the filtrate of qualified discharge is obtained, can be directly used for the cleaner liquid of fiber wash.
In order to realize foregoing invention purpose, technical scheme is as follows:
A kind of handling process of short fine acid waste water, it is characterised in that:Comprise the following steps:
A. filter
After acid waste water is collected, first it is stirred, after temperature is less than 40 DEG C, is filtered;
B. separate
The one-level membrane separator that the waste water for obtaining sends into aperture≤0.03 μm will be filtered, one-level filtrate and one-level is obtained Concentrate, then by one-level filtrate secondary membrane separator, respectively obtains secondary concentration liquid and two grades of filtrates;
The primary concentration liquid and secondary concentration liquid that step B is obtained are post-processed respectively;Two grades of filtrates are directly used in fiber Washing.
In order to the present invention is better achieved, further, in step B, the one-level film is milipore filter or ceramic membrane.
In step B, the secondary membrane is reverse osmosis membrane.
In step B, the operation pressure≤0.1Mpa of the one-level membrane separator.
In step B of the present invention, the turbidity≤0.5NTU of the one-level filtrate.
In step B of the present invention, the operating pressure≤6Mpa of the secondary membrane separator, it is ensured that while use demand, control Production cost processed.
In step B of the present invention, secondary concentration liquid TDS >=13%.
In step B of the present invention, the two grades of liquor Cs OD≤100mg/L, this index is far below GB discharge standard, protection Environment, and can direct reuse washed in production, cycling use of water saving water resource.
In step B of the present invention, the one-level film is milipore filter or ceramic membrane, and one-level film falls larger diameter for secondary membrane Impurity and suspension, with prevent large granular impurity block secondary membrane, influence osmotic effect even damage equipment.
In step B of the present invention, the secondary membrane is reverse osmosis membrane.
In step C, to burn, the post processing mode of secondary concentration liquid is recovery to the post processing mode of the primary concentration liquid Stood to acid, after being reconfigured, for spinning process.One-level film concentrate is fiber, colloid, the fiber suspension of some hydrolysis The big impurity of shape such as thing, these impurity is concentrated to be transported in boiler and is burned;Be in the concentrate of secondary membrane compared with Dense sulfate(ZnSO4、Na2SO4、H2SO4), these salinities are transported to sour station, after reconfiguring, for spinning work Sequence.
Beneficial effects of the present invention:
(1)Compared with process for treating acidic waste water of the prior art, process is simple of the invention, process time is short, efficiency high, Filtrate after treatment can be directly used for strand cleaning step, improve the utilization rate of water resource;And in processing procedure, it is not necessary to outward Plus chemical reagent, processing cost is low, promotes the energy-saving and emission-reduction work of enterprise.
(2)The present invention is not only reuse water, but also by the sulfate in waste water(ZnSO in secondary concentration liquid4、 Na2SO4、H2SO4)Spinning process is back to after concentrate again, recovery utilization rate is high, will not again produce other environmental factors, both saved Water resource, has saved chemical industry soup again, reduces the colleague of production cost, energy-saving and emission-reduction, environmental protection.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Specific embodiment
The present invention is described in further detail with reference to embodiment, but embodiments of the present invention not limited to this.
Embodiment 1
A kind of handling process of short fine acid waste water, it is characterised in that:Comprise the following steps:
A. filter
After acid waste water is collected, first it is stirred, after temperature is less than 40 DEG C, is filtered;
B. separate
The one-level membrane separator that the waste water feeding aperture for obtaining is 0.03 μm will be filtered, one-level filtrate and one-level is obtained Concentrate, then sends one-level filtrate into secondary membrane separator, respectively obtains secondary concentration liquid and two grades of filtrates;
C. post-process
The primary concentration liquid and secondary concentration liquid that step B is obtained are post-processed respectively;Two grades of filtrates are directly used in fiber Washing.
Embodiment 2
A kind of handling process of short fine acid waste water, it is characterised in that:Comprise the following steps:
A. filter
After acid waste water is collected, first it is stirred, after temperature is less than 40 DEG C, is filtered;
B. separate
The one-level membrane separator that the waste water for obtaining sends into aperture≤0.03 μm will be filtered, one-level filtrate and one-level is obtained Concentrate, then sends one-level filtrate into secondary membrane separator, respectively obtains secondary concentration liquid and two grades of filtrates;
C. post-process
The primary concentration liquid and secondary concentration liquid that step B is obtained are post-processed respectively;Two grades of filtrates are directly used in fiber Washing.
In the present embodiment step B, the operation pressure of the one-level membrane separator is 0.09Mpa.
In the present embodiment step B, the turbidity of one-level filtrate is 0.4NTU.
In the present embodiment step B, the operating pressure of secondary membrane separator is 5.8Mpa.
In the present embodiment step B, the secondary concentration liquid TDS is 14%.
In the present embodiment step B, two grades of liquor C OD are 98mg/L.
The one-level film of the present embodiment is milipore filter, aperture≤0.03 μm;Secondary membrane is reverse osmosis membrane.
Embodiment 3
A kind of handling process of short fine acid waste water, it is characterised in that:Comprise the following steps:
A. filter
After acid waste water is collected, first it is stirred, after temperature is less than 40 DEG C, is filtered;
B. separate
The one-level membrane separator that the waste water for obtaining sends into aperture≤0.03 μm will be filtered, one-level filtrate and one-level is obtained Concentrate, then sends one-level filtrate into aperture secondary membrane separator, respectively obtains secondary concentration liquid and two grades of filtrates;
C. post-process
The primary concentration liquid and secondary concentration liquid that step B is obtained are post-processed respectively;Two grades of filtrates are directly used in fiber Washing.
In the present embodiment step B, the operation pressure 0.7Mpa of the one-level membrane separator.
In the present embodiment step B, the turbidity of one-level filtrate is 0.3NTU.
In the present embodiment step B, the operating pressure of secondary membrane separator is 5.5Mpa.
In the present embodiment step B, secondary concentration liquid TDS is 14%.
In the present embodiment step B, two grades of liquor C OD are 97mg/L.
The one-level film of the present embodiment is ceramic membrane;Secondary membrane is reverse osmosis membrane.
In step C, to burn, the post processing mode of secondary concentration liquid is recovery to the post processing mode of the primary concentration liquid Stood to acid, after being reconfigured, obtain ZnSO4、Na2SO4、H2SO4For spinning process.
Embodiment 4
A kind of handling process of short fine acid waste water, it is characterised in that:Comprise the following steps:
A. filter
After acid waste water is collected, first it is stirred, after temperature is less than 40 DEG C, is filtered;
B. separate
The one-level membrane separator that the waste water for obtaining sends into aperture≤0.03 μm will be filtered, one-level filtrate and one-level is obtained Concentrate, then sends one-level filtrate into aperture secondary membrane separator, respectively obtains secondary concentration liquid and two grades of filtrates;
C. post-process
The primary concentration liquid and secondary concentration liquid that step B is obtained are post-processed respectively;Two grades of filtrates are directly used in fiber Washing.
In the present embodiment step B, the operation pressure of one-level membrane separator is 0.7Mpa.
In the present embodiment step B, the turbidity of one-level filtrate is 0.4NTU.
In the present embodiment step B, the operating pressure of secondary membrane separator is 5.6Mpa.
In the present embodiment step B, secondary concentration liquid TDS is 15%.
In the present embodiment step B, two grades of liquor C OD are 90mg/L.
The one-level film of the present embodiment is ceramic membrane film;Secondary membrane is reverse osmosis membrane.
In step C, to burn, the post processing mode of secondary concentration liquid is recovery to the post processing mode of the primary concentration liquid Stood to acid, after being reconfigured, obtain ZnSO4、Na2SO4、H2SO4For spinning process.
The wastewater treatment equipment of this implementation uses following structure:
A kind of processing system of short fine acid waste water, including storage tank, filter, one-level membrane separator, secondary membrane separator and use In the after-treatment device for the treatment of concentrate, the first conveyance conduit, the filter and are provided between the storage tank and filter The second conveyance conduit is provided between level membrane separator, the 3rd conveying is provided between the one-level membrane separator and secondary membrane separator Pipeline, is provided with the 4th conveyance conduit between the secondary membrane separator and after-treatment device, the one-level membrane separator is by the Five conveyance conduits are connected with the 4th conveyance conduit.
The above, is only presently preferred embodiments of the present invention, not does any formal limitation to the present invention, it is every according to Any simple modification, the equivalent variations made to above example according to technical spirit of the invention, each fall within protection of the invention Within the scope of.

Claims (9)

1. a kind of handling process of short fine acid waste water, it is characterised in that:Comprise the following steps:
Filtering
After acid waste water is collected, first it is stirred, after temperature is less than 40 DEG C, is filtered;
B. separate
The one-level membrane separator that the waste water for obtaining sends into aperture≤0.03 μm will be filtered, one-level filtrate and one-level is obtained Concentrate, then sends one-level filtrate into secondary membrane separator, respectively obtains secondary concentration liquid and two grades of filtrates;
C. post-process
The primary concentration liquid and secondary concentration liquid that step B is obtained are post-processed respectively;Two grades of filtrates are directly used in fiber Washing.
2. a kind of handling process of short fine acid waste water as claimed in claim 1, it is characterised in that:In step B, the one-level Film is milipore filter or ceramic membrane.
3. a kind of handling process of short fine acid waste water as claimed in claim 1 or 2, it is characterised in that:It is described in step B Secondary membrane is reverse osmosis membrane.
4. a kind of handling process of short fine acid waste water as claimed in claim 2, it is characterised in that:In step B, the one-level Operation pressure≤the 0.1Mpa of membrane separator.
5. a kind of handling process of short fine acid waste water as claimed in claim 2, it is characterised in that:In step B, the one-level Turbidity≤the 0.5NTU of filtrate.
6. a kind of handling process of short fine acid waste water as claimed in claim 3, it is characterised in that:In step B, described two grades Operating pressure≤the 6Mpa of membrane separator.
7. a kind of handling process of short fine acid waste water as claimed in claim 3, it is characterised in that:In step B, described two grades TDS >=13% in concentrate.
8. a kind of handling process of short fine acid waste water as claimed in claim 3, it is characterised in that:In step B, described two grades Liquor C OD≤100mg/L.
9. a kind of handling process of short fine acid waste water as claimed in claim 1, it is characterised in that:In step C, the one-level The post processing mode of concentrate to burn, to be recycled to sour station after being reconfigured, use by the post processing mode of secondary concentration liquid In spinning process.
CN201611079443.XA 2016-11-30 2016-11-30 A kind of handling process of short fine acid waste water Pending CN106745517A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107740207A (en) * 2017-09-27 2018-02-27 唐山三友集团兴达化纤有限公司 A kind of preprocess method of viscose rayon acid waste water
CN107954527A (en) * 2017-11-24 2018-04-24 安徽皖维高新材料股份有限公司 A kind of recovery method of the waste water containing saltcake
CN108439634A (en) * 2018-03-21 2018-08-24 新乡化纤股份有限公司 A method of using twin-stage special membrane recycling viscose rayon acid waste water
CN113003805A (en) * 2021-03-11 2021-06-22 莱特莱德(上海)技术有限公司 Viscose fiber acid wastewater primary reverse osmosis concentrated water resource recovery device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1907879A (en) * 2006-08-08 2007-02-07 国家海洋局杭州水处理技术研究开发中心 Method for treatment of wool washing waste water
US20100193436A1 (en) * 2007-08-20 2010-08-05 Earth Renaissance Technologies, Llc Pre-treatment reverse osmosis water recovery method for brine retentate metals removal
CN102020380A (en) * 2010-12-15 2011-04-20 佛山市三水区碧源环保工程有限公司 Sewage treatment device and process
CN105084613A (en) * 2015-08-10 2015-11-25 厦门世达膜科技有限公司 Industrial wastewater zero discharging technology for phytoextraction industry
CN106145496A (en) * 2016-08-03 2016-11-23 上海凯鑫分离技术股份有限公司 The comprehensive utilization process of viscose fiber acid waste water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1907879A (en) * 2006-08-08 2007-02-07 国家海洋局杭州水处理技术研究开发中心 Method for treatment of wool washing waste water
US20100193436A1 (en) * 2007-08-20 2010-08-05 Earth Renaissance Technologies, Llc Pre-treatment reverse osmosis water recovery method for brine retentate metals removal
CN102020380A (en) * 2010-12-15 2011-04-20 佛山市三水区碧源环保工程有限公司 Sewage treatment device and process
CN105084613A (en) * 2015-08-10 2015-11-25 厦门世达膜科技有限公司 Industrial wastewater zero discharging technology for phytoextraction industry
CN106145496A (en) * 2016-08-03 2016-11-23 上海凯鑫分离技术股份有限公司 The comprehensive utilization process of viscose fiber acid waste water

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107740207A (en) * 2017-09-27 2018-02-27 唐山三友集团兴达化纤有限公司 A kind of preprocess method of viscose rayon acid waste water
CN107954527A (en) * 2017-11-24 2018-04-24 安徽皖维高新材料股份有限公司 A kind of recovery method of the waste water containing saltcake
CN108439634A (en) * 2018-03-21 2018-08-24 新乡化纤股份有限公司 A method of using twin-stage special membrane recycling viscose rayon acid waste water
CN113003805A (en) * 2021-03-11 2021-06-22 莱特莱德(上海)技术有限公司 Viscose fiber acid wastewater primary reverse osmosis concentrated water resource recovery device and method

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Application publication date: 20170531