CN110294570A - A kind of novel pretreatment membrane bioreactor and its application method - Google Patents
A kind of novel pretreatment membrane bioreactor and its application method Download PDFInfo
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- CN110294570A CN110294570A CN201910573757.2A CN201910573757A CN110294570A CN 110294570 A CN110294570 A CN 110294570A CN 201910573757 A CN201910573757 A CN 201910573757A CN 110294570 A CN110294570 A CN 110294570A
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- 239000012528 membrane Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 230000003647 oxidation Effects 0.000 claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 33
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract 2
- 230000001699 photocatalysis Effects 0.000 claims description 43
- 230000001590 oxidative effect Effects 0.000 claims description 16
- 239000007800 oxidant agent Substances 0.000 claims description 15
- 238000007146 photocatalysis Methods 0.000 claims description 12
- 238000003973 irrigation Methods 0.000 claims description 11
- 230000002262 irrigation Effects 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000012510 hollow fiber Substances 0.000 claims description 7
- 230000001112 coagulating effect Effects 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000001728 nano-filtration Methods 0.000 claims description 3
- 238000001223 reverse osmosis Methods 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims 1
- 241000220317 Rosa Species 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 15
- 230000003197 catalytic effect Effects 0.000 abstract description 14
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010842 industrial wastewater Substances 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract 2
- 238000009303 advanced oxidation process reaction Methods 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000003426 chemical strengthening reaction Methods 0.000 description 2
- -1 hydroxyl radical free radical Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000009298 carbon filtering Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
- C02F3/1273—Submerged membrane bioreactors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention is by the way that domestic sewage in rural areas, community life sewage or a small amount of industrial wastewater to be collected, enter pretreating zone by lifting system, pretreating zone uses coagulant precipitation, anaerobism, anoxic process, so that contamination index is met gravity flow after MBR system water inlet requires and enters the area MBR；By the processing in the area MBR, production water turbidity≤1NTU, other indexs is made to meet MBR system producing water water quality index；Photochemical catalytic oxidation produces water and enters production pool, can also can be sent to reuse point by pressure charging system with overflow discharge and be carried out reuse.It is characteristic of the invention that traditional handicraft, membrane process, advanced oxidation processes are organically combined, the movable integrated water chemical treatment device for being directed to small water is formed, system automation degree is high, it is unattended, subsequent disinfection treatment is not needed, no disinfection by-products is safeguarded simple and convenient.
Description
Technical field
The present invention relates to a kind of sewage treatment and reclamation sets, in particular to one kind based on pretreatment membrane bioreactor light
The distributing integrated sewage disposal and reclamation set of catalytic oxidation technologies.
Background technique
Membrane bioreactor (abbreviation MBR technique) is that secondary settling tank is replaced to carry out the mud mixture of biochemical process using film
Be separated by solid-liquid separation, it use open hollow fiber, plate, tubular membrane component, film is placed directly within it is in aerobic tank or individually placed,
By the negative-pressure ward or positive pressure of pump, makes water through film surface, achieve the purpose that filtration, purification.MBR technique is at home and abroad
It has been applied successfully to the processing of municipal sewage and trade effluent.
The core of MBR technique has been the seperation film of the ultrafiltration rank of separation of solid and liquid effect, and there are many materials and a variety of for MBR film
The characteristics of configuration, every kind of material and configuration have oneself, can reasonably be selected according to the actual situation.
Photochemical catalytic oxidation technique belongs to high-level oxidation technology, for polluted-water processing, water treatment, industry difficult to degrade
Field of waste water treatment has application, and using ultraviolet light or visible light as catalyst, catalytic oxidant produces photocatalysis oxidation technique
The raw extremely strong hydroxyl radical free radical of oxidability, hydroxyl radical free radical can be without the organic matters and reproducibility object in the oxidation water of selection
Matter can be further improved water quality, while ultraviolet light itself has the function of sterilizing, subsequent no longer to need disinfectant measure.
Country sewage, community wastewater and small flow industrial wastewater have the following characteristics that
(1) drainage point disperses, it is difficult to unified collection processing；
(2) water discharge time is concentrated, and Feng Gu is clearly demarcated；
(3) water is smaller, and it is incomplete to collect pipe network, it is difficult to be included in pipe network processing；
(4) waste water is directly discharged into mostly in water body nearby, generates the pollution of class face source formula, is administered difficult；
(5) waste water usually has certain color, and sense organ is poor after conventional treatment.
Currently, decentralized type sewage processing unit starts to be widely applied at home, common technique has at microkinetic biochemistry
Reason system, unpowered biochemical treatment system, MBR system etc. use the process route based on conventional biochemical substantially, by processing
Afterwards, the requirement of discharge standard can be reached substantially.But if to carry out reuse, there is also coloration, COD, biological safeties etc.
Problem not up to standard.Realize the reuse of decentralized type sewage, it is also necessary to introduce other treatment process.It is studied both at home and abroad at present
Distributing advanced treatment process is less, reports more active charcoal filtering technique.
Active carbon filtering technique mainly has application in small-sized MBR system, for deviating from the coloration of waste water, while reducing useless
The COD of water.But since suction-operated belongs to physical process, the only transfer of pollutant, pollutant itself not to drop
Solution；And active carbon needs to regularly replace, replaced active carbon belongs to solid waste, equally exists environmental risk.
Summary of the invention
The present invention aiming at the shortcomings in the prior art, while considering water-saving and emission-reducing, proposes a kind of raw based on pretreatment film
The distributing integrated sewage disposal and reclamation set of object reactor photocatalysis oxidation technique.Rural area, small is handled by the invention
The decentralized type sewage in area, small business, reduce pipe network be laid with cost, system stabilization reliable for operation, produce water can reuse can also be straight
Run in and puts.Automation technolo degree is high, unattended, and management service is easy, fundamentally solve decentralized type sewage processing and
The problem of reuse.The present invention is achieved by following proposal: a kind of novel pretreatment membrane bioreactor, it includes pre- place
Area, the area MBR and photocatalytic region are managed, is equipped with the area Hao Yang, anaerobic zone and aeration zone in the pretreating zone, the pretreating zone is divided into a left side
Right two regions are equipped with the area Hao Yang and anaerobic zone in the region on the left side, and aeration zone is equipped in right area, and bottom is equipped with aeration
The bottom of pipe, the region in the region and the right on the left side is equipped with a water flow hole being connected to, and the side in region on the right is set
There is the water flow hole for being connected to the area MBR, center is equipped with MBR membrane module in the area MBR, and the area MBR connects photocatalytic region,
The side section of middle photocatalytic region is equipped with MBR and produces pool, and the water which produces pool is used to be pumped by aspirating, and overflow into
Enter photocatalytic region, light source membrane module is equipped in the photocatalytic region, one end connection of the photocatalytic region produces water without tower anallobar
Storage is for flushing the toilet and common green area irrigation, and the outlet of other end connection is equipped with filter, which can be used for farmland irrigating
It irrigates.
As preferred: being additionally provided with connection dosing rest area in the photocatalytic region, be equipped with oxidation in the dosing rest area
Agent, the oxidant are automatically added to using multiple spot, and 2-5 dosage is added every time, and the light source in the light source film group is using purple
Outer or visible light source, and it is serially connected with covering more, and each film group can be used alone, and every mantle group is with automation cleaning dress
It sets, the multiple spot of the oxidant is added the suction pump delay that oxidant is produced with MBR in pool and is associated with, and with equipment room machine with automatically controlled
Area's control processed.The application method of novel pretreatment membrane bioreactor of the present invention, comprising the following steps:
A. sewage is introduced into pretreating zone, wherein raw water index is as follows:
Wherein, the pretreating zone includes coagulating sedimentation, anaerobism, anoxic, aerobic process, index that treated for pretreating zone
It is as follows:
B. pretreating zone production water is entered into the area MBR, it is as follows that MBR produces water index:
Wherein, the area MBR uses submerged hollow fiber membrane, immersed flat panel membrane or separated type tubular membrane, UF membrane aperture
It is 0.02~0.5 μm, 10~25LMH of membrane flux；
C. by the area MBR produce water by suction pump enter MBR produce pool, on a small quantity for membranous system maintenance, most of overflow into
Enter photochemical catalytic oxidation area, carries out oxidation processes；30~120min of water retention time is handled, it is as follows to produce water index:
D. the production water after Treatment by Photocatalysis Oxidation by one end pipeline outflow for meet flush the toilet, green area irrigation, road
Road sprinkling reuse requirement, can simultaneously serve as nanofiltration, reverse osmosis raw water, can also with direct emission,；The other end passes through filtering
Case, which can directly reach the water source, can be used for the standard of field irrigation.
As preferred: photocatalytic system has delay to be associated with MBR suction pump in the step c, and MBR suction pump stops suction
After 15~60min, photocatalytic system is shut down, after MBR system opens 15~60min, photocatalytic system booting, and is produced from the area MBR
Water flux is 10~25LMH, and the photochemical catalytic oxidation system residence time is 30~120min.
In the present invention, the automation cleaning device periodic cleaning fluorescent tube that the light source film group in photochemical catalytic oxidation area is equipped with, base
Originally it does not need artificially to safeguard.The area MBR carries out chemical strengthening backwash and offline cleaning as needed, safeguards the stability of membranous system
Can, chemical strengthening backwash is carried out using automated manner, periodically, and offline cleaning uses manual type, is irregularly carried out as needed.
The utility model has the advantages that
According to the solution of the present invention, the processing and reuse requirement of decentralized type sewage be can be realized, device has following prominent
Feature:
(1) complete technology chain is designed to movable integrated processing unit, does not need a large amount of pipe network and is laid with, it can
To help ground type or full underground type, flexible arrangement realizes reusing sewage and qualified discharge.
(2) MBR membrane separation technique and photocatalysis oxidation technique are organically combined, two kinds of process advantage complementations, is improved
The stability and producing water water quality of system, MBR film produce in water and are practically free of solid suspension, generate oxidant and photocatalysis
Free radical is completely used for oxidation dissolution organic matter, while light source fluorescent tube is not easy to generate pollution, improves photocatalytic system
Efficiency reduces oxidant usage amount, reduces the light-catalyzed reaction time.
(3) MBR system and photocatalysis membrana group have automatic maintaining device, can also guarantee in the state of unattended be
The operation of system efficient stable.
(4) photochemical catalytic oxidation itself has the function of sterilizing, and system does not need that sterilizing unit is arranged again, reduces work
Skill is answered
Miscellaneous degree.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings: shown in Fig. 1, a kind of novel pretreatment membrane biological reaction
Device, it includes pretreating zone 1, the area MBR 2 and photocatalytic region 3, is equipped with the area Hao Yang 4, anaerobic zone 5 and aeration zone in the pretreating zone 1
6, the pretreating zone is divided into two regions in left and right, is equipped with the area Hao Yang 4 and anaerobic zone 5 in the region on the left side, and in right area
Equipped with aeration zone 6, bottom is equipped with aeration tube 7, and the bottom in the region in the region and the right on the left side is equipped with a water flow being connected to
Hole 8, and the side in region on the right is equipped with the water flow hole 9 for being connected to the area MBR 2, center is equipped with MBR film in the area MBR 2
Component 10, the area MBR 2 connect photocatalytic region 3, and wherein the side section of photocatalytic region 3 is equipped with a MBR and produces pool 11, the MBR
The water for producing pool 11 is pumped by suction, and overflow enters photocatalytic region 3, is equipped with light source film group in the photocatalytic region 3
Part 12, one end connection of the photocatalytic region 3 produce water and store without tower anallobar 13 for flushing the toilet and common green area irrigation, the other end
The outlet 14 of connection is equipped with filter 15, which can be used for field irrigation.
It is as shown in the figure: to be additionally provided with connection dosing rest area 16 in the photocatalytic region 3, be equipped in the dosing rest area 16
Oxidant, the oxidant are automatically added to using multiple spot, and 2-5 dosage, the light source in the light source film group 12 are added every time
Using ultraviolet or visible light source, and it is serially connected with covering more, and each film group 12 can be used alone, and every mantle group 12 is with automatic
Mechanical cleaning device, the multiple spot of the oxidant are added the suction pump delay that oxidant is produced with MBR in pool 11 and are associated with, and with setting
Machine distribution control zone 17 controls between standby.
The application method of novel pretreatment membrane bioreactor of the present invention, comprising the following steps:
A. sewage is introduced into pretreating zone, wherein raw water index is as follows:
Wherein, the pretreating zone includes coagulating sedimentation, anaerobism, anoxic, aerobic process, index that treated for pretreating zone
It is as follows:
B. pretreating zone production water is entered into the area MBR, it is as follows that MBR produces water index:
Wherein, the area MBR uses submerged hollow fiber membrane, immersed flat panel membrane or separated type tubular membrane, UF membrane aperture
It is 0.02~0.5 μm, 10~25LMH of membrane flux；
C. by the area MBR produce water by suction pump enter MBR produce pool, on a small quantity for membranous system maintenance, most of overflow into
Enter photochemical catalytic oxidation area, carries out oxidation processes；30~120min of water retention time is handled, it is as follows to produce water index:
D. the production water after Treatment by Photocatalysis Oxidation by one end pipeline outflow for meet flush the toilet, green area irrigation, road
Road sprinkling reuse requirement, can simultaneously serve as nanofiltration, reverse osmosis raw water, can also with direct emission,；The other end passes through filtering
Case, which can directly reach the water source, can be used for the standard of field irrigation, and photocatalytic system and MBR suction pump have in the step c
Delay association, after MBR suction pump stops 15~60min of suction, photocatalytic system is shut down, after MBR system opens 15~60min,
Photocatalytic system booting, and the area MBR permeant flux be 10~25LMH, the photochemical catalytic oxidation system residence time be 30~
120min.The degree for the treatment of of the photochemical catalytic oxidation system of the device can open quantity by oxidant additional amount and light source film group
It is adjusted flexibly.The present invention can also be equipped with non-tower water supply system with device, and pressure of supply water and water can adjust in real time, the dress
Setting may be mounted at as emergency processing equipment on mobile platform, and can be convenient disassembly and assembly, for large-scale emergency car
Or it is easy to install and use on emergency purifier.
Embodiment 1
A kind of distributing integrated sewage disposal and reuse based on pretreatment membrane bioreactor photocatalysis oxidation technique
Device
(1) domestic sewage in rural areas is introduced into pretreating zone, wherein raw water index is as follows:
Wherein, pretreating zone uses anoxic/aerobic process (abbreviation A/O technique), after pretreating process, water quality indicator
It is as follows:
(2) pretreating zone produces water and enters the area MBR, and it is as follows that MBR produces water index:
MBR film uses submerged hollow fiber membrane, and UF membrane aperture is 0.4 μm, membrane flux 15LMH.
(3) production water in the area MBR enters MBR production pool, safeguards on a small quantity for membranous system, most of overflow enters photochemical catalytic oxidation
Area carries out oxidation processes；Water residence time 30min in systems is handled, it is following (periodic monitoring average value) to produce water index:
After above-mentioned processing, the pollutant index of sewage is returned close to IV class water water quality requirement by non-tower water supply mode
It is sprayed for afforestation and road, superfluous water is directly discharged into pond nearby.
Embodiment 2
A kind of distributing integrated sewage disposal and reuse based on pretreatment membrane bioreactor photocatalysis oxidation technique
Device
(1) bean product processing factory is introduced pretreating zone through cesspool sewage, wherein raw water index is as follows:
Wherein, pretreating zone uses coagulating sedimentation/anoxic/aerobic process, and after pretreating process, water quality indicator is such as
Under:
(2) pretreating zone produces water and enters the area MBR, and it is as follows that MBR produces water index:
MBR film uses submerged hollow fiber membrane, and UF membrane aperture is 0.4 μm, membrane flux 12LMH.
(3) production water in the area MBR enters MBR production pool, safeguards on a small quantity for membranous system, most of overflow enters photochemical catalytic oxidation
Area carries out oxidation processes；Water residence time 90min in systems is handled, it is following (periodic monitoring average value) to produce water index:
After above-mentioned processing, the pollutant index of sewage is close to " urban wastewater treatment firm pollutant emission standard "
(GB18918-2002) level-one A standard requirements, a part are used for on-site green area irrigation, a part of direct outlet.
Embodiment 3
A kind of distributing integrated sewage disposal and reuse based on pretreatment membrane bioreactor photocatalysis oxidation technique
Device
(1) cell is introduced pretreating zone through cesspool sewage, wherein raw water index is as follows:
Wherein, pretreating zone uses anoxic/aerobic process, and after pretreating process, water quality indicator is as follows:
(2) pretreating zone produces water and enters MBR system, and it is as follows that MBR produces water index:
MBR film uses submerged hollow fiber membrane, and UF membrane aperture is 0.4 μm, membrane flux 12LMH.
(3) production water in the area MBR enters MBR production pond, safeguards on a small quantity for membranous system, most of overflow enters photochemical catalytic oxidation
Area carries out oxidation processes；Water residence time 25min in systems is handled, it is following (periodic monitoring average value) to produce water index:
After above-mentioned processing, for the pollutant index of sewage close to IV class water water quality requirement, a part is used for subdistrict greening
It irrigates, a part of direct outlet.
Claims (4)
1. a kind of novel pretreatment membrane bioreactor, it includes pretreating zone, the area MBR and photocatalytic region, in the pretreating zone
Equipped with the area Hao Yang, anaerobic zone and aeration zone, it is characterised in that the pretreating zone, which is divided into, controls two regions, in the region on the left side
Equipped with the area Hao Yang and anaerobic zone, and aeration zone is equipped in right area, bottom is equipped with aeration tube, the region and the right on the left side
The bottom in region be equipped with the water flow hole of a connection, and the side in region on the right is equipped with and is connected to the water flow hole in the area MBR, should
Center is equipped with MBR membrane module in the area MBR, and the area MBR connects photocatalytic region, and wherein the side section of photocatalytic region is equipped with one
A MBR produces pool, and the water which produces pool is used to be pumped by aspirating, and overflow enters photocatalytic region, in the photocatalytic region
Equipped with light source membrane module, one end connection of the photocatalytic region produces water and fills without the storage of tower anallobar for flushing the toilet and commonly afforesting
It irrigates, the outlet of other end connection is equipped with filter, which can be used for field irrigation.
2. novel pretreatment membrane bioreactor according to claim 1, it is characterised in that also set in the photocatalytic region
There is connection dosing rest area, be equipped with oxidant in the dosing rest area, the oxidant is automatically added to using multiple spot, is added every time
Enter 2-5 chemical feeding points, the light source in the light source film group uses ultraviolet or visible light source, and, each film group serially connected with more covering
It can be used alone, and every mantle group has automation cleaning plant, oxidant is added in the multiple spot of the oxidant and MBR is produced
Suction pump in pool postpones association, and is controlled with equipment room machine distribution control zone.
3. such as the application method of novel pretreatment membrane bioreactor claimed in claims 1-2, comprising the following steps:
A. sewage is introduced into pretreating zone, wherein raw water index is as follows:
Wherein, the pretreating zone includes coagulating sedimentation, anaerobism, anoxic, aerobic process, and index that treated for pretreating zone is such as
Under:
B. pretreating zone production water is entered into the area MBR, it is as follows that MBR produces water index:
Wherein, the area MBR uses submerged hollow fiber membrane, immersed flat panel membrane or separated type tubular membrane, and UF membrane aperture is
0.02~0.5 μm, 10~25LMH of membrane flux；
C. the area MBR is produced into water and MBR production pool is entered by suction pump, safeguarded on a small quantity for membranous system, most of overflow enters light
Catalysis oxidation area carries out oxidation processes；30~120min of water retention time is handled, it is as follows to produce water index:
D. the production water after Treatment by Photocatalysis Oxidation is flushed the toilet by the outflow of one end pipeline for satisfaction, green area irrigation, road spray
The reuse requirement spilt can simultaneously serve as nanofiltration, reverse osmosis raw water, can also be with direct emission；The other end can by Rose Box
It can achieve standard for field irrigation to directly reach the water source.
4. the application method of novel pretreatment membrane bioreactor according to claim 3, it is characterised in that the step c
Middle photocatalytic system has delay to be associated with MBR suction pump, and after MBR suction pump stops 15~60min of suction, photocatalytic system is stopped
Machine, after MBR system opens 15~60min, photocatalytic system booting, and the area MBR permeant flux is 10~25LMH, photocatalysis
The oxidative system residence time is 30~120min.
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