CN105417896A - Printing and dyeing wastewater treatment system - Google Patents

Printing and dyeing wastewater treatment system Download PDF

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Publication number
CN105417896A
CN105417896A CN201610014031.1A CN201610014031A CN105417896A CN 105417896 A CN105417896 A CN 105417896A CN 201610014031 A CN201610014031 A CN 201610014031A CN 105417896 A CN105417896 A CN 105417896A
Authority
CN
China
Prior art keywords
tank
printing
membrane bioreactor
pond
wastewater 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
Application number
CN201610014031.1A
Other languages
Chinese (zh)
Inventor
杨鹏
王彧
孙书强
吉龙
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.)
JIAXING RUIYI ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
JIAXING RUIYI ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY 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 JIAXING RUIYI ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd filed Critical JIAXING RUIYI ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201610014031.1A priority Critical patent/CN105417896A/en
Publication of CN105417896A publication Critical patent/CN105417896A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • 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
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents
    • 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1236Particular type of activated sludge installations
    • C02F3/1268Membrane bioreactor systems

Abstract

The invention discloses a printing and dyeing wastewater treatment system which comprises a regulating pool connected with a sewage opening, a sediment pool for added medicine sediment, an aeration tank and a clean water pool which are sequentially connected with the regulating pool. The clean water pool is connected with a standard emission opening. The printing and dyeing wastewater treatment system further comprises a membrane bioreactor, a secondary sediment pool for secondary sediment, a blower for conducting air blowing on the aeration tank and the membrane bioreactor and a recycling component for recycling and treating the treated water. The aeration tank is connected with the membrane bioreactor, the membrane bioreactor is connected with the secondary sediment pool and the recycling assembly, the secondary sediment pool is connected with the recycling assembly and the clean water pool, and the blower is connected with the aeration tank and the membrane bioreactor. The printing and dyeing wastewater treatment system has the advantages that after the system is adopted to treat printing and dyeing wastewater, the finally generated wastewater is less; besides, most of the wastewater and sludge can be recycled, and the effects of saving energy and reducing emission are achieved.

Description

A kind of printing and dyeing wastewater treatment system
Technical field
The present invention relates to a kind of Waste Water Treatment, particularly relate to a kind of printing and dyeing wastewater treatment system.
Background technology
Dyeing waste water refers to cotton, hair, the natural fibers such as chemical fibre and chemical fibre textile product are in drift refining, dyeing, the waste water produced in stamp and arrangement process, dyeing is industrial wastewater discharge rich and influential family, it is large that dyeing waste water has the water yield, organic pollutant content is high, colourity is dark, alkalescence is large, the features such as change of water quality, belong to unmanageable trade effluent, the dyestuff of printing and dyeing industry owing to using, auxiliary agent is different, in the dyeing waste water of each factory discharge, pollutent character and quantity also differ widely, therefore also varied to the groundwater pollution control of dyeing waste water, but existing treatment of dyeing wastewater be simple from process start with to emission standard aspect, and do not consider how cycling and reutilization.
Summary of the invention
The invention provides a kind of printing and dyeing wastewater treatment system, solve above-mentioned Problems existing.
The present invention is realized by following technical scheme:
A kind of printing and dyeing wastewater treatment system, comprise the equalizing tank connecting sewage mouth, the settling tank precipitated for dosing be connected successively with equalizing tank, aeration tank and clean water basin, clean water basin connect qualified discharge mouth, it is characterized in that, also comprise membrane bioreactor, for the second pond of secondary sedimentation, for carrying out the gas blower of air blast to aeration tank and membrane bioreactor, for the recovery assembly of recycling reclaimed the water after process, described aeration tank junctional membrane bio-reactor, membrane bioreactor connects second pond respectively and reclaims assembly, second pond connects recovery assembly and clean water basin respectively, gas blower connects aeration tank and membrane bioreactor respectively.
Above-mentioned a kind of printing and dyeing wastewater treatment system, is characterized in that, described recovery assembly comprises the air flotation pool, tank, sandfiltration pot and the reuse tank that connect successively, described air flotation pool junctional membrane bio-reactor and second pond.
Above-mentioned a kind of printing and dyeing wastewater treatment system, it is characterized in that, described settling tank, second pond and air flotation pool are provided with mud discharging mouth, also comprise sludge sump and pressure mud machine room, described settling tank is connected pressure mud machine room with the mud discharging mouth of second pond, the mud discharging mouth of described air flotation pool connects sludge sump, and described sludge sump connects pressure mud machine room.
Above-mentioned a kind of printing and dyeing wastewater treatment system, is characterized in that, also comprises backwash bucket, and described membrane bioreactor circulates with backwash bucket and is connected.
Beneficial effect of the present invention is: have employed after native system processes dyeing and printing sewage, the final waste water not only produced is few, and can carry out recycling for most waste water and mud, reaches the effect of energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Referring to Fig. 1, a kind of printing and dyeing wastewater treatment system, comprise the equalizing tank 100 connecting sewage mouth, the settling tank 200 precipitated for dosing be connected successively with equalizing tank 100, aeration tank 300 and clean water basin 400, clean water basin 400 connect qualified discharge mouth, also comprise membrane bioreactor 500, for the second pond 600 of secondary sedimentation, for carrying out the gas blower 700 of air blast to aeration tank 300 and membrane bioreactor 500, for the recovery assembly of recycling reclaimed the water after process, aeration tank 300 junctional membrane bio-reactor 500, membrane bioreactor 500 connects second pond 600 respectively and reclaims assembly, second pond 600 connects recovery assembly and clean water basin 400 respectively, gas blower 700 connects aeration tank 300 and membrane bioreactor 500 respectively.
Reclaim assembly and comprise the air flotation pool 810, tank 820, sandfiltration pot 830 and the reuse tank 840 that connect successively, air flotation pool 810 junctional membrane bio-reactor 500 and second pond 600.Also comprise backwash bucket 510, membrane bioreactor 500 circulates with backwash bucket 510 and is connected.
Membrane bioreactor 500(MembraneBio-Reactor), be a kind of new type water treatment technology combined with biological processing unit by film separation unit.
In traditional biological wastewater treatment technology, mud-water separation completes by action of gravity in second pond, and its separation efficiency depends on the settling property of active sludge, and settleability is better, and mud-water separation efficiency is higher.And the settleability of mud depends on the operation conditions of aeration tank, improve the operational condition that sludge settling strictly must control aeration tank, which has limited the scope of application of the method.Due to the requirement of second pond solid-liquid separation, the mud of aeration tank can not maintain higher concentration, generally at about 1.5 ~ 3.5g/L, thus limits biochemical reaction rate.Hydraulic detention time (HRT) and sludge age (SRT) interdepend, and improve volumetric loading and often form contradiction with reduction sludge loading.System also creates a large amount of excess sludges in operational process, and its disposal costs accounts for 25% ~ 40% of sewage work's working cost.Also easily there is sludge bulking phenomenon in traditional active sludge treatment system, containing suspended solids in water outlet, effluent quality worsens.
For the problems referred to above, the membrane separation technique in separation engineering and conventional waste water biologic treating technique organically combine by membrane bioreactor 500, substantially increase solid-liquid separation efficiency; And due to the appearance of special efficacy bacterium (particularly dominant microflora) in the increase of activated sludge concentration in aeration tank and mud, improve biochemical reaction rate; Meanwhile, by reducing F/M than reducing excess sludge generation (being even 0), thus many outstanding problems of traditional activated sludge process existence are substantially solved.
Compared with many traditional Biological water treatment process, membrane bioreactor 500 has following major advantage:
1, effluent quality high-quality stable
Due to the high efficiency separation effect of film, separating effect is much better than traditional settling tank, process water outlet is extremely limpid, suspended substance and turbidity are close to zero, bacterium and virus are significantly removed, effluent quality is better than the miscellaneous domestic water quality standard (CJ25.1-89) that the Ministry of Construction issues, and directly can carry out reuse as non-municipal usage of drinking.
Simultaneously, membrane sepn also makes microorganism be dammed in bio-reactor completely, make can maintain higher microorganism concn in system, not only increase the overall removal efficiency of reaction unit to pollutent, ensure that good effluent quality, the various changes of simultaneous reactions device to influent load (water quality and the water yield) have good adaptability, anti impulsion load, can stablize the effluent quality obtaining high-quality.
2, excess sludge production is few
This technique can be run under high volumetric loading, low sludge loading, and excess sludge production low (can realize zero sludge discharge in theory), reduces sludge treatment expense.
3, floor space is little, is not arranged occasion and limits
Can maintain the microbial biomass of high density in bio-reactor, treatment unit volumetric loading is high, and floor space is saved greatly; This technical process is simple, compact construction, small accommodation area, do not limit by setting place, be suitable for any occasion, ground type, semi-underground type and underground type can be made.
4, ammonia nitrogen and hardly degraded organic substance can be removed
Because microorganism is dammed in bio-reactor completely, thus be conducive to breeding microorganism slowly and retain growth as nitrobacteria, system nitrification efficiency is improved.Meanwhile, the organism hydraulic detention time in systems in which of some difficult degradations can be increased, be conducive to the raising of hardly degraded organic substance degradation efficiency.
5, convenient operation and management, is easy to realize automatic control
This technique achieves being separated completely of hydraulic detention time (HRT) and sludge retention time (SRT), run and control to stablize more flexibly, be the new technology easily realizing equipmentization in sewage disposal, can microcomputer automatic control be realized, thus make operational administrative more convenient.
6, be easy to transform from traditional technology
This technique as the advanced treatment unit of traditional waste water treatment process, can have broad application prospects in fields such as secondary municipal wastewater treatment plant water outlet advanced treatment (thus realizing a large amount of reuses of municipal effluent).
The air-flotation process method that air flotation pool 810 adopts is exactly logical people's air in waste water, and separate out from water with micro-bubble form and become carrier, the pollution substances such as the oil in water emulsion in waste water, small suspended particle are made to stick on bubble, the water surface is floated to bubble, form foam one gas, water, particle (oil) three-phase mixture, the object reaching separating impurity by collection foam or scum silica frost, purify liquid waste.Flotation process be mainly used to process in waste water by natural subsidence or floating be difficult to the oil in water emulsion removed or relative density close to 1 small suspended particle.
Because the precipitator method in water-purifying process are continued to use for many years, people select By Bubble-floating Method naturally will compare with the precipitator method.In fact, two kinds of methods differ from one another, and its technical economical analysis is as follows:
Should dissolved air flotation be adopted for light easily floating impurity; The precipitator method should be adopted for closely knit heavy impurity.Usually the flco by being formed after dispensing, hybrid reaction, when ascent rate is faster than precipitation, then selects By Bubble-floating Method as well.Because By Bubble-floating Method floor space little (being only 1/8 1 1/2 of the precipitator method), pool volume is little (being only the 1/8-1/4 of the precipitator method) also, after process, effluent quality is good, not only turbidity and SS is low but also dissolved oxygen is high, the mud that the scum silica frost water ratio of discharge is discharged well below the precipitator method.General sludge volume is than being 1/10-1/2, and this had both brought larger convenience to the further treatment and disposal of mud, again saved expense.Some waste water, simultaneously containing the impurity that can sink, can float, is used alone air supporting or sedimentation effect is all undesirable.Now precipitation can be combined with air supporting, play respective advantage, not only can improve treatment effect, and reduce investment outlay and working cost.
Production practice show, air flotation pool not only except look, go turbid on be better than settling tank, and all show extremely unique advantage reducing the COD of polluted water, xylogen and extract in oxygen etc., its cost is also low than horizontal sedimentation tank, tube settler, waterpower or mechanical accelerating purifying pool, and its working cost is also lower slightly.
The concrete technology of overall operation is: plant effluent drains into equalizing tank 100, settling tank 200 is entered through sewage pump, precipitation supernatant liquor is from flowing to aeration tank 300 and membrane bioreactor 500, membrane bioreactor 500 water outlet part multiparity water pump is evacuated to air flotation pool 810, air flotation pool 810 water outlet through pump to the last recycling of tank 820, sandfiltration pot 830 and reuse tank 840.A part is from flowing to second pond 600, and a second pond 600 water outlet part enters air flotation pool 810, and a part is entered clean water basin 400 and discharged.And in this process, aeration tank 300 and membrane bioreactor 500 aeration are by gas blower 700 air feed, the pressurized air of air flotation pool 810 is by dissolving air feed.
Settling tank 200, second pond 600 and air flotation pool 810 are provided with mud discharging mouth, also comprise sludge sump 910 and pressure mud machine room 920, settling tank 200 is connected pressure mud machine room 920 with the mud discharging mouth of second pond 600, the mud discharging mouth of air flotation pool 810 connects sludge sump 910, and sludge sump 910 connects pressure mud machine room 920.The mud that settling tank 200, second pond 600 and air flotation pool 810 produce finally all flows in pressure mud machine room 920 and carries out repoussage recycling.
Beneficial effect of the present invention is: have employed after native system processes dyeing and printing sewage, the final waste water not only produced is few, and can carry out recycling for most waste water and mud, reaches the effect of energy-saving and emission-reduction.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.

Claims (4)

1. a printing and dyeing wastewater treatment system, comprise the equalizing tank connecting sewage mouth, the settling tank precipitated for dosing be connected successively with equalizing tank, aeration tank and clean water basin, clean water basin connect qualified discharge mouth, it is characterized in that, also comprise membrane bioreactor, for the second pond of secondary sedimentation, for carrying out the gas blower of air blast to aeration tank and membrane bioreactor, for the recovery assembly of recycling reclaimed the water after process, described aeration tank junctional membrane bio-reactor, membrane bioreactor connects second pond respectively and reclaims assembly, second pond connects recovery assembly and clean water basin respectively, gas blower connects aeration tank and membrane bioreactor respectively.
2. a kind of printing and dyeing wastewater treatment system as claimed in claim 1, is characterized in that, described recovery assembly comprises the air flotation pool, tank, sandfiltration pot and the reuse tank that connect successively, described air flotation pool junctional membrane bio-reactor and second pond.
3. a kind of printing and dyeing wastewater treatment system as claimed in claim 2, it is characterized in that, described settling tank, second pond and air flotation pool are provided with mud discharging mouth, also comprise sludge sump and pressure mud machine room, described settling tank is connected pressure mud machine room with the mud discharging mouth of second pond, the mud discharging mouth of described air flotation pool connects sludge sump, and described sludge sump connects pressure mud machine room.
4. a kind of printing and dyeing wastewater treatment system as described in claim 1 or 3, is characterized in that, also comprises backwash bucket, and described membrane bioreactor circulates with backwash bucket and is connected.
CN201610014031.1A 2016-01-07 2016-01-07 Printing and dyeing wastewater treatment system Pending CN105417896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610014031.1A CN105417896A (en) 2016-01-07 2016-01-07 Printing and dyeing wastewater treatment system

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Application Number Priority Date Filing Date Title
CN201610014031.1A CN105417896A (en) 2016-01-07 2016-01-07 Printing and dyeing wastewater treatment system

Publications (1)

Publication Number Publication Date
CN105417896A true CN105417896A (en) 2016-03-23

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101041532A (en) * 2007-02-15 2007-09-26 三达膜科技(厦门)有限公司 Printing and dyeing waste water treatment method based on film technology
CN101880103A (en) * 2009-05-08 2010-11-10 东丽纤维研究所(中国)有限公司 Printing-dying wastewater recycling treatment process
CN205347139U (en) * 2016-01-07 2016-06-29 嘉兴瑞奕环保科技有限公司 Printing and dyeing wastewater treatment system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101041532A (en) * 2007-02-15 2007-09-26 三达膜科技(厦门)有限公司 Printing and dyeing waste water treatment method based on film technology
CN101880103A (en) * 2009-05-08 2010-11-10 东丽纤维研究所(中国)有限公司 Printing-dying wastewater recycling treatment process
CN205347139U (en) * 2016-01-07 2016-06-29 嘉兴瑞奕环保科技有限公司 Printing and dyeing wastewater treatment system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
戴顺虔: "纺织染料废水处理工程工艺探析", 《城市道桥与防洪》 *

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Application publication date: 20160323