CN101033103A - Method of treating weave printing and dyeing wastewater by slurries production technology - Google Patents
Method of treating weave printing and dyeing wastewater by slurries production technology Download PDFInfo
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- CN101033103A CN101033103A CN 200710026686 CN200710026686A CN101033103A CN 101033103 A CN101033103 A CN 101033103A CN 200710026686 CN200710026686 CN 200710026686 CN 200710026686 A CN200710026686 A CN 200710026686A CN 101033103 A CN101033103 A CN 101033103A
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Abstract
This invention discloses a method for processing spinning, printing and dyeing waste water by a coal-water slurry production technology including a step of filtering spinning, printing and dyeing waste water, a step of determining the mixture ratio among desulfurizer, dispersant, clean water and waste water, a step of mixing slurrying, a step of stabilizing the slurry and a step of aging and storing coal-water slurries.
Description
Technical field
The present invention relates to a kind of method of utilizing slurries production technology to handle textile printing and dyeing wastewater.
Background technology
Textile industry is the traditional mainstay industry of China, comprises 5 parts such as weaving, printing and dyeing, chemical fibre, the manufacturing of clothing and textile specific equipment.Along with fast development of national economy, the dyeing industry of China has also entered high-speed development period, and equipment and state of the art obviously promote, and production technique and equipment are brought in constant renewal in and regenerated, and the especially private printing and dyeing enterprise development of printing and dyeing enterprise is very rapid.Simultaneously, the textile printing and dyeing industry wastewater emission amount occupies the 5th of national industrial trade, its wastewater emission amount is 14.13 hundred million tons/year, wherein dyeing waste water is about 11.3 hundred million tons (account for textile printing and dyeing industry waste water 80%), account for about 7% of national discharged volume of industrial waste water, every day, quantity discharged was at 300～4,000,000 tons.Because the lasting deterioration that industrialization development brings water surrounding, the shortage day by day of water resources makes country to environment-friendly water-saving problem pay attention to day by day, printing and dyeing processing industry area of concentration, northern part water-deficient areas such as present Jiangsu and Zhejiang Provinces, Guangdong one band, generally improved the wastewater treatment emission standard, the wastewater displacement of printing and dyeing enterprise is also carried out the strictness restriction, and water intaking resource expense, fee of sewage discharge also begin significantly to promote.The raising of environmental requirement has made the production capacity expansion of some areas printing and dyeing enterprise be faced with serious threat, therefore, can not rant out, from now on how water resources is effectively re-used and will become the lifeline of enterprise development.On this basis, how adopting the water treatment new technology constantly to promote the economy of utilizing has again become present most of printing and dyeing enterprise and has all begun the problem paid close attention to.
The pollutent of printing and dyeing is dyestuff, auxiliary agent and the poisonous and hazardous heavy metal of difficult degradation, formaldehyde, halogenide etc. mostly.1 ton of dyeing waste water of every discharging just can pollute 20 tons of water bodys.After the accession to WTO, textile printing and dyeing is in recent years all with digit growth in, but the Pollutant Treatment facility is difficult to synchronously, and gross contamination emission has increase trend.In four big emphasis COD discharging industries of China's industrial trade, the COD quantity discharged of textile printing and dyeing industry occupies the 4th, and the COD of textile printing and dyeing industry discharging proportion rises year by year.This shows that there are many characteristics such as " water yields big, the COD quantity discharged is big, wastewater treatment is difficult " in the waste water of textile printing and dyeing industry, administer and improperly will cause severe contamination environment.On the other hand, along with the change of dyeing and printing process and product structure, variation has also taken place in printing and dyeing water quality, and the intractability of waste water also strengthens thereupon, and we must constantly bring forth new ideas, improve and improve the improvement state of the art, select the operational path that is suitable for.
Dyeing waste water has that the water yield is big, organic contamination substrate concentration height, kind are many, contain poisonous objectionable constituent, characteristics such as colourity is dark, alkalescence is big, change of water quality is big, complicated component, one of more unmanageable trade effluent of genus.The water quality of dyeing waste water is different and different with the kinds of fibers of processing and the dyestuff of adopting process and use, and contaminant component is widely different.General dyeing waste water pH value is 6～13, and colourity can be up to 1000 times, and CODcr is 400～4000mg/L, and BOD5 is 100～1000mg/L.With the intractability is that standard can be divided into: (1) high-concentration printing and dyeing wastewater: pulp waste water, printing waste water, batik waste water, alkali decrement waste water and the embroidery waste water etc. that float waste water, jeans thread are boiled in moving back of woven cloth; (2) intermediate concentration dyeing waste water: wool fabric dyeing, knitting dyeing, silk dyeing and finishing, sewing thread dyeing and slide fastener dyeing etc.; (3) lower concentration dyeing waste water: cowboy's dress ornament is washed and is floated waste water.Dyeing waste water is the organic waste water based on the complicated component of organic contamination, processing mainly to as if BOD
5, readily biodegradable or biodegradation rate organism, basicity, coloring matter and a small amount of toxic substance slowly not.Pretreatment technology comprises that mainly adjusting, neutralization, useless chrome liquor handle with the dense pin water pretreatment of dyestuff etc., and biological treatment is mainly aerobic method, and that adopts at present has activated sludge process, biological contact oxidation process, blodisc and a tower biological filter etc.For improving the biodegradability of waste water, anoxic, anaerobic technique also are applied in the treatment of dyeing wastewater.Materialization treatment process commonly used mainly is coagulant sedimentation and mixed condensed gas flotation process.In addition, electrolytic process, biological activated carbon method and chemical oxidization method etc. also are used for treatment of dyeing wastewater sometimes.But the textile printing and dyeing wastewater by this type of art breading at most can only qualified discharge, can not reach the process water of quality of reused water standard as textile printing and dyeing, can not be applied to other occasion, can only be used as discharge of wastewater, the comprehensive utilization of still being unrealized, waste great lot of water resources; And existing treatment process investment is big, cost is high, is restricting the expansion of textile printing and dyeing enterprises production capacity.
Coal water slurry is a kind of coal-based liquid fuel that is prepared from through physical mixed by about 70% coal dust, about 30% water and a small amount of additive.It can be as oil pumping, atomizing, accumulating, and can be directly used in the burning of various boilers, kiln, it has changed the traditional combustion mode of coal, demonstrated huge environmental protection and energy saving advantage, technological development, industrial experiment and commercial Demonstration Application in China through more than ten years, the generation that has demonstrated that it had oily, energy-conservation, efficient combustion and many advantages such as low pollution, be familiar with by the enterprise more than more and more, and be subjected to state leader's care and attention always.Under the guarantee of China's abundant coal deposit, coal water slurry has also become basic, the most most economical clear energy sources that substitutes oil, gas equal energy source, in for some time from now on, big change can not take place based on the energy structure of coal in China, and coal water slurry has wide market outlook as a kind of clean fuel in China.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides a kind of and turns waste into wealth, cost is low, the slurries production technology that utilizes of environmental protection is handled the method for textile printing and dyeing wastewater.
The technical solution adopted in the present invention is: the present invention includes following steps:
(a) filtration step: textile printing and dyeing wastewater is filtered to remove the bigger impurity of granularity;
(b) proportioning step: take a sample in the textile printing and dyeing wastewater after filtration, and be mixed in proportion with clear water, add dispersion agent again, add sweetening agent more gradually, till the pH of sample value is at 8～10 o'clock, draw the proportion relation between sweetening agent, dispersion agent, clear water, the textile printing and dyeing wastewater;
(c) mixed pulp step: the washing cleaned coal after the fragmentation joined with sweetening agent, dispersion agent, clear water, the textile printing and dyeing wastewater of the proportion relation that obtains by the proportioning step carry out Forced Mixing slurrying in the ball mill;
(d) stable treatment step: will filter by colour strainer through ball mill blended slurry, and in stable treatment tank, carry out stability and handle;
(e) coal water slurry slaking storing step: will carry out coal water slurry that overstability handles and send into mixing slaking jar and carry out maturation process, and send into slurry can after the slaking and store for future use.
Described dispersion agent is sulfonated lignin or humate or sulfonic formaldehyde condensation compound how, and described sweetening agent is a liming.
Ratio between washing cleaned coal after the described fragmentation, described clear water, the described textile printing and dyeing wastewater is 14: 3: 3.
The invention has the beneficial effects as follows: because the present invention adopts aforesaid method to make high-concentration coal-water slurry, made full use of the waste water of textile printing and dyeing enterprises, reduce the pollution of water resources and avoided waste simultaneously, for textile printing and dyeing factory, not only reduced the high expense of handling waste water, reach simultaneously and reduce the purpose of polluting and improving environment, for coal water mixture plant, then reduced the consumption of clear water, not only save great lot of water resources, and significantly reduced the slurrying cost, be a kind of scheme all favourable to each side, to have technology simple so handle textile printing and dyeing wastewater in this way, less investment, it is low to handle the waste water cost, the slurrying cost is low, the multiple advantage of environmental protection has realized turning waste into wealth, be particularly suitable for the comprehensive utilization of textile printing and dyeing factory waste water, also help applying of coal water slurry fuel;
Owing to added alkaline organic liquid waste in the pulping process of the present invention, promptly utilize textile printing and dyeing wastewater to prepare coal water slurry through alkalinisation treatment, the part that can neutralize tart sulphur improves desulfurization degree, thus the coal water slurry desulfurization degree height that the present invention makes, good environmental protection.
Description of drawings
Fig. 1 is a schematic flow sheet of the present invention.
Embodiment
The method that present embodiment utilizes slurries production technology to handle textile printing and dyeing wastewater may further comprise the steps:
(a) filtration step: textile printing and dyeing wastewater is filtered to remove the bigger impurity of granularity, and the slag after the filtration then can pass through methods such as burning, landfill to be handled;
(b) proportioning step: take a sample in the textile printing and dyeing wastewater after filtration, and press 1: 1 mixed with clear water, add sulfonated lignin again as dispersion agent, adding liming more gradually (is Ca (OH)
2Solution) as sweetening agent, till the pH of sample value equals at 8 o'clock, the scope of pH can be between 8～10 after the proportioning, promptly presenting weakly alkaline gets final product, can reach the effect of sloughing the sulphur in the coal like this, this step can draw the proportion relation between sweetening agent, dispersion agent, clear water, the textile printing and dyeing wastewater, and certain described dispersion agent also can adopt humate or other dispersion agent commonly used such as sulfonic formaldehyde condensation compound how;
(c) mixed pulp step: the washing cleaned coal after the fragmentation joined with sweetening agent, dispersion agent, clear water, the textile printing and dyeing wastewater of the proportion relation that obtains by the proportioning step carry out Forced Mixing slurrying in the ball mill, ratio between washing cleaned coal after the described fragmentation, described clear water, the described textile printing and dyeing wastewater is 14: 3: 3, to reach the water coal proportionlity of coal water slurry;
(d) stable treatment step: will filter by colour strainer through ball mill blended slurry, and in stable treatment tank, carry out stability and handle;
(e) coal water slurry slaking storing step: will carry out coal water slurry that overstability handles and send into mixing slaking jar and carry out maturation process, and send into slurry can after the slaking and store for future use.
The proportioning ratio of the above step (b) need experimentize at the textile printing and dyeing wastewater of the different physical and chemical indexs of different textile printing and dyeing factory and draw best proportioning, ratio between described clear water, the described textile printing and dyeing wastewater also can suitably be adjusted, if textile printing and dyeing wastewater concentration is lower, described clear water consumption can suitably reduce ratio, saves clear water so more.
The coal water slurry that adopts method manufacturing of the present invention is a kind of high-concentration coal-water slurry, through test, can reach the II grade standard of the coal water slurry national standard " GB/T 18855-2002, the technical indicator of coal water slurry and measuring method " that State Environmental Protection Administration applies.The present invention has that technology is simple, less investment, processing waste water cost is low, the slurrying cost is low, sweetening effectiveness good, the multiple advantage of environmental protection; realized turning waste into wealth; be particularly suitable for the comprehensive utilization of textile printing and dyeing factory waste water; also help applying of coal water slurry fuel, reach the double benefit of waste water comprehensive utilization and environment protection.
The present invention can be widely used in textile printing and dyeing industry waste water comprehensive utilization field.
Claims (3)
1, a kind of method of utilizing slurries production technology to handle textile printing and dyeing wastewater, it is characterized in that: it may further comprise the steps:
(a) filtration step: textile printing and dyeing wastewater is filtered to remove the bigger impurity of granularity;
(b) proportioning step: take a sample in the textile printing and dyeing wastewater after filtration, and be mixed in proportion with clear water, add dispersion agent again, add sweetening agent more gradually, till the pH of sample value is at 8～10 o'clock, draw the proportion relation between sweetening agent, dispersion agent, clear water, the textile printing and dyeing wastewater;
(c) mixed pulp step: the washing cleaned coal after the fragmentation joined with sweetening agent, dispersion agent, clear water, the textile printing and dyeing wastewater of the proportion relation that obtains by the proportioning step carry out Forced Mixing slurrying in the ball mill;
(d) stable treatment step: will filter by colour strainer through ball mill blended slurry, and in stable treatment tank, carry out stability and handle;
(e) coal water slurry slaking storing step: will carry out coal water slurry that overstability handles and send into mixing slaking jar and carry out maturation process, and send into slurry can after the slaking and store for future use.
2, the method for utilizing slurries production technology to handle textile printing and dyeing wastewater according to claim 1 is characterized in that: described dispersion agent is sulfonated lignin or humate or sulfonic formaldehyde condensation compound how, and described sweetening agent is a liming.
3, the method for utilizing slurries production technology to handle textile printing and dyeing wastewater according to claim 1, it is characterized in that: the ratio between the washing cleaned coal after the described fragmentation, described clear water, the described textile printing and dyeing wastewater is 14: 3: 3.
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| CNB2007100266861A CN100486917C (en) | 2007-02-02 | 2007-02-02 | Method of treating weave printing and dyeing wastewater by slurries production technology |
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| CNB2007100266861A CN100486917C (en) | 2007-02-02 | 2007-02-02 | Method of treating weave printing and dyeing wastewater by slurries production technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329669A (en) * | 2010-07-14 | 2012-01-25 | 上海焦化有限公司 | Coal water slurry additive |
| WO2013091454A1 (en) * | 2011-12-23 | 2013-06-27 | 青岛特利尔环保锅炉工程有限公司 | Process for treating industrial wastewater by means of suspended fluidized combustion of coal-water slurry |
| CN103449618A (en) * | 2013-09-06 | 2013-12-18 | 南京理工大学 | Non-phosphorus composite corrosion and scale inhibitor suitable for industrial circulating cooling water |
| CN104560248A (en) * | 2015-01-30 | 2015-04-29 | 袁涓 | Coal water slurry prepared from industrial wastewater and preparation technique thereof |
| CN106479585A (en) * | 2015-08-27 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of method that high concentration PVA waste water prepares water-coal-slurry |
| CN108822907A (en) * | 2018-06-25 | 2018-11-16 | 合肥金同维低温科技有限公司 | A method of textile printing and dyeing wastewater is handled using slurries production technology |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103305298B (en) * | 2013-07-04 | 2014-10-29 | 中国海洋石油总公司 | Method for preparing natural gas by coal gasification |
-
2007
- 2007-02-02 CN CNB2007100266861A patent/CN100486917C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329669A (en) * | 2010-07-14 | 2012-01-25 | 上海焦化有限公司 | Coal water slurry additive |
| CN102329669B (en) * | 2010-07-14 | 2015-10-28 | 上海华谊能源化工有限公司 | Slurries additive agent |
| WO2013091454A1 (en) * | 2011-12-23 | 2013-06-27 | 青岛特利尔环保锅炉工程有限公司 | Process for treating industrial wastewater by means of suspended fluidized combustion of coal-water slurry |
| CN103449618A (en) * | 2013-09-06 | 2013-12-18 | 南京理工大学 | Non-phosphorus composite corrosion and scale inhibitor suitable for industrial circulating cooling water |
| CN103449618B (en) * | 2013-09-06 | 2015-05-13 | 南京理工大学 | Non-phosphorus composite corrosion and scale inhibitor suitable for industrial circulating cooling water |
| CN104560248A (en) * | 2015-01-30 | 2015-04-29 | 袁涓 | Coal water slurry prepared from industrial wastewater and preparation technique thereof |
| CN106479585A (en) * | 2015-08-27 | 2017-03-08 | 中国石油化工股份有限公司 | A kind of method that high concentration PVA waste water prepares water-coal-slurry |
| CN106479585B (en) * | 2015-08-27 | 2018-06-12 | 中国石油化工股份有限公司 | A kind of method that high concentration PVA waste water prepares water-coal-slurry |
| CN108822907A (en) * | 2018-06-25 | 2018-11-16 | 合肥金同维低温科技有限公司 | A method of textile printing and dyeing wastewater is handled using slurries production technology |
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| CN100486917C (en) | 2009-05-13 |
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Owner name: ZHUHAI GOLDEN TORCH CLEAN ENERGY TECHNOLOGY CO., L Free format text: FORMER OWNER: ZHUHAI SIRUI TECHNOLOGY CO., LTD. Effective date: 20090612 |
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Effective date of registration: 20090612 Address after: No. 75, Yanhe East Road, Zhuhai, Guangdong, Xiangzhou Patentee after: Zhuhai Golden Torch Clean Energy Technology Co., Ltd. Address before: There are commercial plaza, No. 1168 Xiangzhou road Guangdong city Zhuhai province 1702 Phoenix Patentee before: Zhuhai Sirui Science and Technology Co., Ltd. |
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Granted publication date: 20090513 Termination date: 20100202 |