CN103288238B - System for pure and impure printing and dyeing wastewater separation and wastewater recycling treatment - Google Patents
System for pure and impure printing and dyeing wastewater separation and wastewater recycling treatment Download PDFInfo
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- CN103288238B CN103288238B CN201310211759.XA CN201310211759A CN103288238B CN 103288238 B CN103288238 B CN 103288238B CN 201310211759 A CN201310211759 A CN 201310211759A CN 103288238 B CN103288238 B CN 103288238B
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Abstract
The invention provides a system for pure and impure printing and dyeing wastewater separation and wastewater recycling treatment. The system comprises a discharge pipeline for discharging printing and dyeing wastewater generated from printing and dyeing equipment, wherein the discharging pipeline comprises a low-concentration discharging tube for discharging low-concentration wastewater and a high-concentration discharging tube for discharging high-concentration wastewater; a control valve I is arranged on the low-concentration discharging tube; and a control valve II is arranged on the high-concentration discharging tube. By utilizing the system, low-concentration printing and dyeing wastewater and high-concentration printing and dyeing wastewater can be separated and respectively treated, so that the treatment cost is saved, the energy is saved, and the environment is protected.
Description
Technical field
The present invention relates to treatment of dyeing wastewater field, be specifically related to the pure and impure separation of a kind of dyeing waste water and waste water recycling treatment system.
Background technology
China's dyeing is water consumption, power consumption, blowdown rich and influential family.Aspect water and energy consumption, compared with abroad, printing and dyeing enterprise unit product water withdrawal is 2～3 times of developed country, and energy-output ratio is 3 times of left and right, and the link energy consumption of conventionally printing and dyeing will account for the more than 30% of textile product chain energy consumption; Aspect pollutant emission, dyeing waste water total emission volumn is the 5th of national each industrial sector total emission volumn, and gross contamination emission (in COD value) is positioned at the 6th, and the average reclamation rate of its waste water only has 7%.In addition, only have at present minority enterprise to adopt heat recovery technology, most of enterprise hot waste gas, thermal wastewater directly discharge, and device control does not have energy saver, and printing and dyeing sludge is not effectively addressed mostly, and the task that industry energy conservation reduces discharging is very arduous.At present, the environmental problems such as printing and dyeing enterprise water, draining highlight day by day, and the many dyeings of China developed regions environmental capacity is very limited, and printing and dyeing enterprise will reach that volume increase does not increase dirt or the dirty target that reduces, and only has employing energy-conserving and emission-cutting technology, realizes cleaner production.
By the detection to efflux wastewater water quality in the different operations of enterprise, result shows, washing in overflow water operation and follow-up washing step after textile dyeing, efflux wastewater COD is lower than 30mg/L, colourity is lower than 5 times, suitable with water intaking water quality, and existing printing and dyeing enterprise is it to be directly greater than to outer row's high-concentration printing and dyeing wastewater of 5 times with COD higher than 30mg/L, colourity mix discharge, workload and the processing cost of wastewater treatment are not only increased, and cause the wasting of resources, run counter to advocating of energy-conserving and environment-protective theory.
Summary of the invention
Technical problem to be solved by this invention is to provide the pure and impure separation of a kind of dyeing waste water and waste water recycling treatment system, can and process respectively the dyeing waste water shunting of the dyeing waste water of lower concentration and high density, can save processing cost, energy-conserving and environment-protective.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: the pure and impure separation of dyeing waste water and waste water recycling treatment system, comprise the discharge pipe line of the dyeing waste water for discharging dyeing apparatus generation, discharge pipe line comprises for the lower concentration water shoot of exhausting low-concentration waste water with for discharging the high density water shoot of high-concentration waste water, lower concentration water shoot is provided with control valve I, and high density water shoot is provided with control valve II.
As preferably, control valve I and control valve II are worked by electric control system controls.
As preferably, lower concentration water shoot is communicated to sewage purifier, and sewage purifier is communicated to that settling tank, settling tank are communicated to filter plant, filter plant is communicated to ion-exchanger, and ion-exchanger is communicated to watering equipment.
As preferably, high density water shoot is communicated to anaerobic reactor, and anaerobic reactor is communicated to coagulation decoloration pond, and coagulation decoloration pond is communicated to suspending biological filter, suspending biological filter is communicated to filtering system, and filtering system is communicated to watering equipment.
Beneficial effect:
The pure and impure separation of dyeing waste water and waste water recycling treatment system that the present invention adopts technique scheme to provide, can and process respectively the dyeing waste water shunting of the dyeing waste water of lower concentration and high density, can save processing cost, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the pure and impure separation of dyeing waste water and waste water recycling treatment system, comprise the discharge pipe line of the dyeing waste water for discharging dyeing apparatus generation, discharge pipe line comprises for the lower concentration water shoot 1 of exhausting low-concentration waste water with for discharging the high density water shoot 2 of high-concentration waste water, lower concentration water shoot 1 is provided with control valve I 3, and high density water shoot 2 is provided with control valve II 4.Control valve I 3 and control valve II 4 are by electrical control system 5 control work, and control valve I 3 and control valve II 4 can adopt magnetic valve.Operator rule of thumb or by test set as water quality detection instrument, COD determinator etc. detect dyeing apparatus discharge waste strength, open corresponding control valve I 3 or control valve II 4 according to detected result control electrical control system 5, dyeing waste water flows out through corresponding pipeline.
Lower concentration water shoot 1 is communicated to sewage purifier 6, sewage purifier 6 is communicated to settling tank 7, between sewage purifier 6 and settling tank 7, be provided with switch-valve, settling tank 7 is communicated to filter plant 8, between settling tank 7 and filter plant 8, be provided with switch-valve, filter plant 8 is communicated to ion-exchanger 9, between filter plant 8 and ion-exchanger 9, is provided with switch-valve, and ion-exchanger 9 is communicated to watering equipment.Lower concentration dyeing waste water after lower concentration water shoot 1 flow to sewage purifier 6 purifying treatment, flow to settling tank 7 precipitate, more after filtration equipment 8 as the filtration such as filter screen, accurate filter after ion-exchanger 9 remove calcium ion in water, magnesium ion, produce after softening water for to watering equipment.
High density water shoot 2 is communicated to anaerobic reactor 10, and anaerobic reactor 10 is communicated to coagulation decoloration pond 11, and coagulation decoloration pond 11 is communicated to suspending biological filter 12, suspending biological filter 12 is communicated to filtering system 13, and filtering system 13 is communicated to watering equipment.Filtering system 13 comprises ultrafiltration apparatus and low worry equipment.
High-concentration printing and dyeing wastewater advanced treatment and recovering process flow are: high-concentration printing and dyeing wastewater waste water carries out anaerobic treatment through efficient anaerobic reactor, the preferred anaerobic baffled reactor of anaerobic reactor, combination bio-carrier is installed on the top of anaerobic baffled reactor, granular bio-carrier is added in bottom, anaerobic sludge interception can be retained in each reaction chamber, and the granular sludge forming forms bulking sludge bed with ascending current in reactor, keep a large amount of mud to obtain good muddy water contact conditions simultaneously, increase substantially organic pollutant removal rate and improve the biodegradability of waste water, its colourity, COD clearance all reaches more than 50%, anaerobism effect is strengthened, carry out again coagulation decoloration processing and suspending biological filter filtration treatment through coagulation decoloration pond, the coagulate decolourant that coagulation decoloration uses, by in the process of synthetic Dyhard RU 100 formaldehyde condensation resins, a certain amount of metal inorganic salt and starch or starch derivative induce one, guanidine resinoid graft copolymerization with condensation, to increase molecular mass and cationic degree, the good decolorizing effect of this efficient organic coagulate decolourant treatment of dyeing and printing, solid-liquid separation is fast, sludge output is few, its COD, the clearance of colourity is respectively more than 65% and 96%, the more traditional coagulating agent of sludge creation amount greatly reduces, suspending biological filter is in BAF(BAF) basis on utilize the particulate filler research and development of different specific weight to form, the advantage of its existing BAF, is difficult for again stopping up.Because filler in water is swelling state, biomass accompanying on filler is larger, and activity is higher, can strengthen the removal of organic pollutant, especially the waste water of low pollution load is had to high processing efficiency, waste water COD can be down to below 40mg/L, for waste water recycling is laid a good foundation; Adopt again micro-flocculation one ultra-filtration membrane pretreatment technology, to reduce to greatest extent turbidity of wastewater, colourity and organic contamination substrate concentration, improve into film water quality requirement; Finally adopt low pressure NF membrane separation technique to remove inorganic salt and remaining organism, realize at low cost the recycle of waste water.The depth type filtration unit of micro-flocculation one ultrafiltration before as film separation unit, can be down to water pollutant extremely lowly, guarantees the influent quality of film separation unit, and prolonging service lifetime of film, reduces the loss of film material as far as possible.Waste water is after aforementioned processing, and wherein Pollutant levels are very low, selects suitable low pressure NF film as waste water recycling terminal unit, for removing inorganic salt and remaining organism, make it can meet printing and dyeing technology water requirement, obtain as far as possible again large membrane flux, reduce working cost and investment.
Claims (1)
1. the pure and impure separation of dyeing waste water and waste water recycling treatment system, comprise the discharge pipe line of the dyeing waste water for discharging dyeing apparatus generation, it is characterized in that: described discharge pipe line comprises for the lower concentration water shoot (1) of exhausting low-concentration waste water with for discharging the high density water shoot (2) of high-concentration waste water, described lower concentration water shoot (1) is provided with control valve I (3), described high density water shoot (2) is provided with control valve II (4), described control valve I (3) and control valve II (4) are by electrical control system (5) control work, described lower concentration water shoot (1) is communicated to sewage purifier (6), described sewage purifier (6) is communicated to settling tank (7), described settling tank (7) is communicated to filter plant (8), described filter plant (8) is communicated to ion-exchanger (9), described ion-exchanger (9) is communicated to watering equipment, described high density water shoot (2) is communicated to anaerobic reactor (10), described anaerobic reactor (10) is communicated to coagulation decoloration pond (11), described coagulation decoloration pond (11) is communicated to suspending biological filter (12), described suspending biological filter (12) is communicated to filtering system (13), described filtering system (13) is communicated to watering equipment.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014496A (en) * | 2014-06-04 | 2014-09-03 | 深圳市华星光电技术有限公司 | Liquid drainage method and device for washing chamber |
| CN108373240B (en) * | 2018-04-11 | 2021-07-27 | 东华大学 | Quality-based treatment and recycling integrated process for cotton printing and dyeing wastewater |
| CN108545885B (en) * | 2018-04-11 | 2021-01-12 | 东华大学 | Quality-based treatment and recycling integrated process for cone yarn printing and dyeing wastewater |
| CN108996811A (en) * | 2018-07-17 | 2018-12-14 | 浙江弘盛纺织科技有限公司 | A kind of printing-dying wastewater recycling method |
| CN108751527A (en) * | 2018-08-22 | 2018-11-06 | 杭州开源环保工程有限公司 | A kind of combined type high-recovery processing system |
| CN110467315A (en) * | 2019-08-19 | 2019-11-19 | 常熟市福亿印花炼染有限公司 | A kind for the treatment of process of efficient dyeing waste water |
| CN111039517A (en) * | 2019-12-31 | 2020-04-21 | 台州市环美环保工程技术有限公司 | Treatment process of printing and dyeing wastewater |
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| CN102399040A (en) * | 2010-09-10 | 2012-04-04 | 沈阳工业大学 | Process for comprehensively treating sulfur dye waste water |
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| JP2005013915A (en) * | 2003-06-27 | 2005-01-20 | Miki Riken Kogyo Kk | Waste water treatment method |
| CN203392946U (en) * | 2013-05-30 | 2014-01-15 | 浙江莱美纺织印染科技有限公司 | Treatment system for separating clean and turbid printing and dyeing wastewaters and recycling wastewaters |
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| CN101391854A (en) * | 2008-10-31 | 2009-03-25 | 许良英 | Treatment process of printing and dyeing wastewater and chemical wastewater and structures thereof |
| CN102399040A (en) * | 2010-09-10 | 2012-04-04 | 沈阳工业大学 | Process for comprehensively treating sulfur dye waste water |
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Address after: 313109 Zhejiang city of Huzhou province Changxing County Jia Pu Industrial Park No. 9 Zhejiang Lummy textile printing and Dyeing Technology Co. Ltd. Patentee after: LAIMEI TECHNOLOGY CO.,LTD. Address before: 313109 Zhejiang city of Huzhou province Changxing County Jia Pu Industrial Park No. 9 Zhejiang Lummy textile printing and Dyeing Technology Co. Ltd. Patentee before: ZHEJIANG LAIMEI TEXTILE PRINTING AND DYEING TECHNOLOGY Co.,Ltd. |
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Denomination of invention: Cleaning and turbidity separation and wastewater reuse treatment system for printing and dyeing wastewater Effective date of registration: 20221013 Granted publication date: 20141008 Pledgee: Changxin Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: LAIMEI TECHNOLOGY CO.,LTD. Registration number: Y2022980018200 |
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