CN106336083B - A kind of dairy wastewater treatment integrated system and technique - Google Patents
A kind of dairy wastewater treatment integrated system and technique Download PDFInfo
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- CN106336083B CN106336083B CN201610912121.2A CN201610912121A CN106336083B CN 106336083 B CN106336083 B CN 106336083B CN 201610912121 A CN201610912121 A CN 201610912121A CN 106336083 B CN106336083 B CN 106336083B
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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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
- C02F2103/327—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters from processes relating to the production of dairy products
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/001—Upstream control, i.e. monitoring for predictive control
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
- C02F2209/008—Processes using a programmable logic controller [PLC] comprising telecommunication features, e.g. modems or antennas
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- 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]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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- Environmental & Geological Engineering (AREA)
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention belongs to industrial waste water treatments, and in particular to a kind of dairy wastewater treatment integrated system and technique.It is higher that the present invention solves COD in Dairy Wastewater, fat content, it is easier to that putrid and deteriorated equal processing problem occurs, improve intelligence, the integration degree of dairy wastewater treatment, for Dairy Wastewater feature of different nature and difficulty in treatment, efficient, stable treatment process is selected to combine, realize distributing rationally for treatment process, process flow is succinct smooth, easy to operate, there is extensive promotional value.
Description
Technical field
The invention belongs to industrial waste water treatments, and in particular to a kind of dairy wastewater treatment integrated system and work
Skill.
Background technique
Dairy processing industry is mostly using cow's milk as raw material, including to produce milk powder, Yoghourt, fresh milk, the modulation dairy products such as milk beverage
Based on enterprise.Dairy products processing need to use a large amount of water, and most of water (about 80%) is condensation, cooling, water for heating, can generally follow
Ring uses.The waste water 80% of dairy processing industry discharge is mainly derived from ox the above are the waste water generated in dairy produce production process
The ion exchange resin regeneration discharged in newborn conveying, filling container, pipeline and the cleaning of equipment machined surface and pure water preparation is useless
Water, this part are high-concentration waste water, and for COD value between 5000~15000mg/L, special circumstances can also be higher, and wastewater flow rate is about
L tons of raw milks of every processing generate 1.0m3, with the variation of the factors such as production kind, yield, factory management, wastewater flow rate is become
Change.Dairy Wastewater feature is that COD, fat content are higher, is easier to occur putrid and deteriorated phenomenon, containing a large amount of soluble in waste water
Organic matter, such as carbohydrate, fatty acid, protein and starch, major pollutants have COD, BOD, vegetable and animals oils, SS, acid-base material
Deng.Wastewater biodegradability is preferable, is free of noxious material, and appearance is creamy white.It is other further include workshop, place cleaning and
Personal hygiene's water is low concentration wastewater, and general COD value is in 1000mg/L or less.In summary the usual Dairy Wastewater water of water quality
Matter such as the following table 1:
1 Dairy Wastewater water quality situation table of table
| Project | COD/(mg/L) | BOD/(mg/L) | Ammonia nitrogen/(mg/L) | SS/(mg/L) | Vegetable and animals oils/(mg/L) | pH |
| Water quality | 2000~3000 | 700~800 | 40~80 | 50~250 | 250~500 | 7.8~10.5 |
The current domestic contrast maturation of dairy wastewater treatment, reliable waste water treatment process have: at hydrolysis acidification+aerobic biochemical
Science and engineering skill and anaerobic UASB+aerobic treatment technique.Wherein use hydrolysis acidification+aerobic treatment technique, wastewater treatment
Management is simple, treatment effect is stable, effluent quality compliance rate with higher, but operating cost is higher, dross and sludge quantity compared with
Greatly.Domestic large-scale dairy products manufacturing enterprise comes into effect wastewater treatment qualified discharge at present, but is dispersed in the small-sized cream in rural area
Product processing factory sewage treatment situation is simultaneously pessimistic, and most of factory does not build sewage treatment facility, or has at sewage
It manages facility but sewage treatment facility cannot run well.General small processing factory is unreasonable using technique and facility, at sewage
Facility is managed on design parameter selection without reference to foundation；In addition, professional sewage operational management personnel, sewage are not run
Operations staff can not make correct response when occurring abnormal, and such sewage treatment facility cannot play maximum effect.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of dairy wastewater treatment integrated system and technique, purpose
It is that COD, fat content are higher in solution Dairy Wastewater, is easier to that putrid and deteriorated equal processing problem occurs, improves dairy wastewater treatment
Intelligence, integration degree select efficient, stable processing for Dairy Wastewater feature of different nature and difficulty in treatment
Process combination realizes distributing rationally for treatment process.
In order to solve the above-mentioned technical problem, dairy wastewater treatment integrated system of the invention by on-line monitoring analysis system,
Intelligence Feedback control system and waste water treatment system composition；Wherein the waste water treatment system is by physical separation module, materialization
Processing module, biochemical treatment module, advanced treating module and Odor control module composition, the physical separation module include one
A fixed hydraulic screen；The materializing strategy module includes coagulation floatation and first heavy oil removal conditioning tank；At the biochemistry
Managing module includes anaerobism submodule and aerobic submodule, and wherein anaerobism submodule includes intermittent reactor for hydrolysis and acidification and anaerobism
Contact membranes expanded bed reactor (AAFEB), aerobic submodule include that eddy flow oxidation ditch reactor and multi-stage anaerobic/aerobic suspension are filled out
Expect Sludge Bed (A/O-MBBR)；The advanced treating module includes tiny flocculation device, filtering cloth filtering pool, double tail fiber dimension media filtration
Device and apparatus for ultraviolet disinfection；The Odor control module includes nonequilibrium plasma deodorization device；
The on-line monitoring analysis system includes multi-parameter Full-automatic water quality detection analysis instrument, the Intelligence Feedback control
System processed includes PLC programmable logic controller (PLC), the signal input part and physics point of multi-parameter Full-automatic water quality detection analysis instrument
It is connected from module, materializing strategy module, biochemical treatment module, advanced treating module with the signal output end of Odor control module,
Signal output end is connected with the signal input part of PLC programmable logic controller (PLC), the signal output of PLC programmable logic controller (PLC)
It holds defeated with the signal of physical separation module, materializing strategy module, biochemical treatment module, advanced treating module and Odor control module
Enter end to be connected.
In above-mentioned waste water treatment system, the water outlet of fixed hydraulic screen and coagulation floatation water inlet end and just heavy oil removal are adjusted
Pond water inlet end is separately connected, and just heavy oil removal conditioning tank water outlet is connect with coagulation floatation water inlet end, coagulation floatation water outlet
It is connected respectively with intermittent reactor for hydrolysis and acidification water inlet end and AAFEB water inlet end, intermittent reactor for hydrolysis and acidification water outlet
It is connected with eddy flow oxidation ditch reactor water inlet end, the water outlet AAFEB is connected with A/O-MBBR water inlet end, and intermittent hydrolysis acidification is anti-
Device water outlet is answered also to be connected with the water outlet AAFEB, eddy flow oxidation ditch reactor water outlet and the water outlet A/O-MBBR and tiny flocculation
Device water inlet end is connected, and tiny flocculation device water outlet intakes with filtering cloth filtering pool water inlet end and double tail fiber dimension media filtration device respectively
End is connected, and filtering cloth filtering pool water outlet and double tail fiber dimension media filtration device water outlet are connected with ultra violet sterilizer water inlet end, purple
Outer chlorination equipment water outlet is connected with nonequilibrium plasma deodorization device water inlet end, and nonequilibrium plasma deodorization device is final
Water outlet.
Wherein, the fixed hydraulic screen is made of curved surface grizzly bar and frame, and compass screen surface forms an inclination angle from top to bottom
The curved surface being gradually reduced, grizzly bar is horizontal positioned, and grizzly bar section is wedge shape, and grizzly bar spacing is 0.25~0.5mm.
It is followed the steps below using the technique that above-mentioned dairy wastewater treatment integrated system carries out dairy wastewater treatment:
Starting on-line monitoring analysis system multi-parameter Full-automatic water quality detection analysis instrument to enter system Dairy Wastewater into
Row monitoring analysis, analyzes Dairy Wastewater water-quality constituents, and according to composition parameter, PLC programmable logic controller (PLC) selects wastewater treatment
The specific starting module of system, the priority of composition parameter processing is successively are as follows: vegetable and animals oils content, c (COD) and c (BOD)/c
(COD)、c(NH3- N) or c (NH3- N)/total nitrogen (TN), C/N, c (SS), specifically:
As vegetable and animals oils > 250mg/L in Dairy Wastewater, it is sent to fixed hydraulic screen, starting operation materializing strategy
First heavy oil removal conditioning tank-coagulation floatation, the intermittent reactor for hydrolysis and acidification of biochemical treatment module, eddy flow oxidation ditch of module
Reactor, the tiny flocculation device of advanced treating module, filtering cloth filtering pool device, apparatus for ultraviolet disinfection and Odor control module it is non-
Equilibrium plasma deodorization device；Wherein coagulation floatation dosage aluminium polychloride (PAFC) 10~25mg/L Dairy Wastewater,
Polyethylene glycol oxide (PEO) 0.8~3mg/L Dairy Wastewater；The operating parameter of intermittent reactor for hydrolysis and acidification: T=20 DEG C, waterpower
Residence time (HRT)=4~4.8h, sludge retention time (SRT)=2~3d, COD 15~22kg/ of volumetric loading (m3﹒ d), rotation
Flow oxidation ditch reactor operating parameter: 0.25~0.8m/s of the amount of pumping up water, 3000~5000mg/L of suspended sediment concentration, oxygen transfer effect
1.2~2.5kgO of rate2/ (kW ﹒ h)；Dispensing agent aluminium polychloride (PAC) and Powdered Activated Carbon in tiny flocculation device；
As c (COD) > 2000mg/L in Dairy Wastewater, and when c (BOD)/c (COD) < 0.6, it is sent to fixed water
Power sieve, the filter cloth filter of the intermittent reactor for hydrolysis and acidification, A/O-MBBR, advanced treating module of starting operation biochemical treatment module
The nonequilibrium plasma deodorization device in pond, apparatus for ultraviolet disinfection and Odor control module；Wherein intermittent hydrolysis acidification is anti-
Answer the operating parameter of device: T=20 DEG C, HRT=4~4.8h, SRT=2~3d, COD 15~22kg/ of volumetric loading (m3﹒ d)；A/
The operating parameter of O-MBBR: aerobic filler packing ratio 45~50%, anaerobism filler packing ratio 30~35%, three-level flow of inlet water point
Match 40%:40%:20%, digestive juice reflux ratio 200~250%, filler COD 8.5~12.8kg/ of volumetric loading (m3﹒ d),
HRT=30~35h；Dispensing agent PAC and Powdered Activated Carbon in tiny flocculation device；
As c (NH in Dairy Wastewater3- N) >=70mg/L or c (NH3- N)/total nitrogen (TN)≤40% when, be sent to fixation
Formula hydraulic screen, starting operation biochemical treatment modules A AFEB, A/O-MBBR, the filtering cloth filtering pool of advanced treating module, disinfection by ultraviolet light
The nonequilibrium plasma deodorization device of device and Odor control module；The wherein operating parameter of AAFEB: 35~40% volume ratios
Add alumina particle, 500~600 μm of alumina particle partial size, 2.5~3.0g/cm of grain density3, bulk density 0.5~
1.0g/cm3, 8~10kgCOD/ of organic loading (m3﹒ d)；A/O-MBBR operating parameter: aerobic filler packing ratio 45~50% is detested
Oxygen filler packing ratio 30~35%, three-level influent flow rate distribution ratio 40%:40%:20%, digestive juice reflux ratio 100~200%,
Filler total nitrogen 0.05~0.2kg/ of volumetric loading (m3﹒ d), HRT=25~30h；
As C/N < 3 in Dairy Wastewater, it is sent to fixed hydraulic screen, starting is run in biochemical treatment module
Filtering cloth filtering pool device, apparatus for ultraviolet disinfection and Odor control module in AAFEB-A/O-MBBR, advanced treating module it is non-
Equilibrium plasma deodorization device；Wherein AAFEB operating parameter: 35~40% volume ratios add alumina particle, aluminium oxide granule
Grain 500~600 μm of partial size, 2.5~3.0g/cm of grain density3, 0.5~1.0g/cm of bulk density3, organic loading 8~
10kgCOD/(m3﹒ d)；A/O-MBBR operating parameter: aerobic filler packing ratio 45~50%, anaerobism filler packing ratio 30~
35%, three-level influent flow rate distribution ratio 40%:30%:30%, digestive juice reflux ratio 250~300%, filler total nitrogen volumetric loading
0.05~0.1kg/ (m3﹒ d), HRT=30~35h；
As c (SS) >=100mg/L in Dairy Wastewater, it is sent to fixed hydraulic screen, starting operation advanced treating mould
The tiny flocculation device of block, double tail fiber dimension media filtration device-apparatus for ultraviolet disinfection and Odor control module it is non-equilibrium etc. from
Daughter deodorization device；Wherein dispensing agent PAC and Powdered Activated Carbon in tiny flocculation device；The operation of double tail fiber dimension media filtration device
Parameter: filtering 15~30m/h of filtering velocity, air-water backwashing, backwash rate 30L/ (s ﹒ m2), backwash cycle 18~for 24 hours；
When Dairy Wastewater water-quality constituents index is unsatisfactory for above-mentioned parameter, it is sent to fixed hydraulic screen, starting operation
First heavy oil removal conditioning tank, the AAFEB- eddy flow oxidation ditch reactor of biochemical treatment module, advanced treating in materializing strategy module
Tiny flocculation device-filtering cloth filtering pool device-apparatus for ultraviolet disinfection and Odor control module nonequilibrium plasma in module
Deodorization device；Wherein AAFEB operating parameter: 35~40% volume ratios add alumina particle, alumina particle partial size 500~
600 μm, 2.5~3.0g/cm of grain density3, 0.5~1.0g/cm of bulk density3, 8~10kgCOD/ of organic loading (m3﹒ d)；Rotation
Flow oxidation ditch reactor operating parameter: 0.25~0.8m/s of the amount of pumping up water, 3000~5000mg/L of suspended sediment concentration, oxygen transfer effect
1.2~2.5kgO of rate2/ (kW ﹒ h)；
After above procedure step process, final nonequilibrium plasma deodorization device water outlet reaches discharge standard.
Compared with prior art, it the features of the present invention and has the beneficial effect that
(1) dairy wastewater treatment integrated system of the invention is higher suitable for COD, fat content, is easier to occur putrid and deteriorated
And the dairy wastewater treatment that fluctuation is big；
(2) dairy wastewater treatment integrated system of the invention is integrated, intelligent, the degree of modularity is high, is conducive to technology
It is converted into integrated equipment, saves space；
(3) dairy wastewater treatment integrated technique of the invention can handle oily, nitrogen simultaneously and SS, stably reaching standard, water outlet can
Regeneration；
(4) dairy wastewater treatment integrated process flow of the invention is succinct smooth, easy to operate, there is extensive promotion price
Value.
Detailed description of the invention
Fig. 1 is dairy wastewater treatment integrated system structural schematic diagram of the invention；
Fig. 2 is one of dairy wastewater treatment integrated system PLC control program flow chart of the invention；
Fig. 3 is the two of dairy wastewater treatment integrated system PLC control program flow chart of the invention；
Fig. 4 is the three of dairy wastewater treatment integrated system PLC control program flow chart of the invention；
Fig. 5 is the four of dairy wastewater treatment integrated system PLC control program flow chart of the invention；
Fig. 6 is the five of dairy wastewater treatment integrated system PLC control program flow chart of the invention；
Wherein: 1: fixed hydraulic screen；2: coagulation floatation；3: just heavy oil removal conditioning tank；4: intermittent hydrolysis acidification is anti-
Answer device；5:AAFEB；6: eddy flow oxidation ditch reactor；7:A/O-MBBR；8: tiny flocculation device；9: filtering cloth filtering pool；10: double tail fiber
Tie up media filtration device；11: apparatus for ultraviolet disinfection；12: nonequilibrium plasma deodorization device；13:PLC programmable logic control
Device processed；14: multi-parameter Full-automatic water quality detection analysis instrument；
In Fig. 1: → represent control signal input and output direction；----represent water quality monitoring signal output line.
Specific embodiment
The multi-parameter Full-automatic water quality detection analysis instrument model used in the embodiment of the present invention is portable 99 ginseng water quality point
Analyzer WDC-PC03.
Dairy wastewater treatment integrated system of the invention by on-line monitoring analysis system, Intelligence Feedback as shown in Figure 1, controlled
System and waste water treatment system composition；Wherein the waste water treatment system is by physical separation module, materializing strategy module, biochemistry
Processing module, advanced treating module and Odor control module composition, the physical separation module include a fixed waterpower
Sieve 1；The materializing strategy module includes coagulation floatation 2 and first heavy oil removal conditioning tank 3；The biochemical treatment module includes
Anaerobism submodule and aerobic submodule, wherein anaerobism submodule includes intermittent reactor for hydrolysis and acidification 4 and AAFEB 5, aerobic
Submodule includes eddy flow oxidation ditch reactor 6 and A/O-MBBR 7；The advanced treating module includes tiny flocculation device 8, filter
Cloth filter tank 9, double tail fiber dimension media filtration device 10 and apparatus for ultraviolet disinfection 11；The Odor control module includes non-equilibrium
Plasma deodorization device 12；
The on-line monitoring analysis system includes multi-parameter Full-automatic water quality detection analysis instrument 14, the Intelligence Feedback
Control system includes PLC programmable logic controller (PLC) 13, the signal input part of multi-parameter Full-automatic water quality detection analysis instrument 14 with
The signal output end of physical separation module, materializing strategy module, biochemical treatment module, advanced treating module and Odor control module
It is connected, signal output end is connected with the signal input part of PLC programmable logic controller (PLC) 13, PLC programmable logic controller (PLC) 13
Signal output end and physical separation module, materializing strategy module, biochemical treatment module, advanced treating module and Odor control mould
The signal input part of block is connected；
In above-mentioned waste water treatment system, the water outlet of fixed hydraulic screen 1 heavy oil removal tune with 2 water inlet end of coagulation floatation and just
Section 3 water inlet end of pond is separately connected, and just heavy 3 water outlet of oil removal conditioning tank is connect with 2 water inlet end of coagulation floatation, coagulation floatation 2
Water outlet is connected with intermittent 4 water inlet end of reactor for hydrolysis and acidification and 5 water inlet end of AAFEB respectively, intermittent hydrolysis acidification reaction
4 water outlet of device is connected with 6 water inlet end of eddy flow oxidation ditch reactor, and 5 water outlet AAFEB is connected with 7 water inlet end of A/O-MBBR,
4 water outlet of formula of having a rest reactor for hydrolysis and acidification is also connected with 5 water outlet AAFEB, 6 water outlet of eddy flow oxidation ditch reactor and A/O-
7 water outlet MBBR is connected with 8 water inlet end of tiny flocculation device, 8 water outlet of tiny flocculation device respectively with 9 water inlet end of filtering cloth filtering pool and
Double tail fiber ties up 10 water inlet end of media filtration device and is connected, and 9 water outlet of filtering cloth filtering pool and double tail fiber dimension media filtration device 10 are discharged
End is connected with 11 water inlet end of ultra violet sterilizer, 11 water outlet of ultra violet sterilizer and nonequilibrium plasma deodorization device 12 into
Water end (W.E.) is connected, 12 final outflow water of nonequilibrium plasma deodorization device.
Wherein, the fixed hydraulic screen 1 is made of curved surface grizzly bar and frame, and compass screen surface forms an inclination angle from top to bottom
The curved surface being gradually reduced, grizzly bar is horizontal positioned, and grizzly bar section is wedge shape, and grizzly bar spacing is 0.25~0.5mm.
It is followed the steps below using the technique that above-mentioned dairy wastewater treatment integrated system carries out dairy wastewater treatment:
Starting on-line monitoring analysis system multi-parameter Full-automatic water quality detection analysis instrument to enter system Dairy Wastewater into
Row monitoring analysis, analyzes Dairy Wastewater water-quality constituents, and according to composition parameter, PLC programmable logic controller (PLC) selects wastewater treatment
The specific starting module of system, the priority of composition parameter processing is successively are as follows: vegetable and animals oils content, c (COD) and c (BOD)/c
(COD)、c(NH3- N) or c (NH3- N)/total nitrogen (TN), C/N, c (SS), specifically:
As vegetable and animals oils > 250mg/L in Dairy Wastewater, process as shown in Figure 2 is sent to fixed hydraulic screen, opens
First heavy oil removal conditioning tank, coagulation floatation, the intermittent hydrolysis acidification of biochemical treatment module of dynamic operation materializing strategy module are anti-
Answer device, eddy flow oxidation ditch reactor, tiny flocculation device-filtering cloth filtering pool device of advanced treating module, apparatus for ultraviolet disinfection and
The nonequilibrium plasma deodorization device of Odor control module；Wherein coagulation floatation dosage aluminium polychloride (PAFC) 10~
25mg/L Dairy Wastewater, polyethylene glycol oxide (PEO) 0.8~3mg/L Dairy Wastewater；The operation of intermittent reactor for hydrolysis and acidification is joined
Number: T=20 DEG C, hydraulic detention time (HRT)=4~4.8h, sludge retention time (SRT)=2~3d, COD volumetric loading 15
~22kg/ (m3﹒ d), eddy flow oxidation ditch reactor operating parameter: 0.25~0.8m/s of the amount of pumping up water, suspended sediment concentration 3000~
5000mg/L, 1.2~2.5kgO of oxygen transfer efficiency2/ (kW ﹒ h)；Dispensing agent aluminium polychloride (PAC) and powder in tiny flocculation device
Last active carbon；
As c (COD) > 2000mg/L in Dairy Wastewater, and when c (BOD)/c (COD) < 0.6, process as shown in Figure 3 will
It is sent into fixed hydraulic screen, intermittent reactor for hydrolysis and acidification, A/O-MBBR, the depth of starting operation biochemical treatment module
Manage the filtering cloth filtering pool of module, the nonequilibrium plasma deodorization device of apparatus for ultraviolet disinfection and Odor control module；Among it
The operating parameter of formula of having a rest reactor for hydrolysis and acidification: T=20 DEG C, HRT=4~4.8h, SRT=2~3d, COD volumetric loading 15~
22kg/(m3﹒ d)；The operating parameter of A/O-MBBR: aerobic filler packing ratio 45~50%, anaerobism filler packing ratio 30~35%,
Three-level influent flow rate distribution ratio 40%:40%:20%, digestive juice reflux ratio 200~250%, filler COD volumetric loading 8.5~
12.8kg/(m3﹒ d), HRT=30~35h；Dispensing agent PAC and Powdered Activated Carbon in tiny flocculation device；
As c (NH in Dairy Wastewater3- N) >=70mg/L or c (NH3- N)/total nitrogen (TN)≤40% when, as shown in Figure 4 flow
Journey is sent to fixed hydraulic screen, the filter cloth of starting operation biochemical treatment modules A AFEB, A/O-MBBR, advanced treating module
The nonequilibrium plasma deodorization device in filter tank, apparatus for ultraviolet disinfection and Odor control module；The wherein operation ginseng of AAFEB
Number: 35~40% volume ratios add alumina particle, 500~600 μm of alumina particle partial size, 2.5~3.0g/ of grain density
cm3, 0.5~1.0g/cm of bulk density3, 8~10kgCOD/ of organic loading (m3﹒ d)；A/O-MBBR operating parameter: aerobic filler
Packing ratio 45~50%, anaerobism filler packing ratio 30~35%, three-level influent flow rate distribution ratio 40%:40%:20%, digestive juice
Reflux ratio 100~200%, filler total nitrogen 0.05~0.2kg/ of volumetric loading (m3﹒ d), HRT=25~30h；
As C/N < 3 in Dairy Wastewater, process as shown in Figure 5 is sent to fixed hydraulic screen, and starting operation is biochemical
Filtering cloth filtering pool device, apparatus for ultraviolet disinfection and the foul smell in AAFEB-A/O-MBBR, advanced treating module in processing module
The nonequilibrium plasma deodorization device of processing module；Wherein AAFEB operating parameter: 35~40% volume ratios add aluminium oxide granule
Grain, 500~600 μm of alumina particle partial size, 2.5~3.0g/cm of grain density3, 0.5~1.0g/cm of bulk density3, it is organic negative
8~10kgCOD/ of lotus (m3﹒ d)；A/O-MBBR operating parameter: aerobic filler packing ratio 45~50%, anaerobism filler packing ratio 30
~35%, three-level influent flow rate distribution ratio 40%:30%:30%, digestive juice reflux ratio 250~300%, filler total nitrogen volume are negative
0.05~0.1kg/ of lotus (m3﹒ d), HRT=30~35h；
As c (SS) >=100mg/L in Dairy Wastewater, process as shown in Figure 6 is sent to fixed hydraulic screen, starting
Run the tiny flocculation device, double tail fiber dimension media filtration device-apparatus for ultraviolet disinfection and Odor control mould of advanced treating module
The nonequilibrium plasma deodorization device of block；Wherein dispensing agent PAC and Powdered Activated Carbon in tiny flocculation device；Double tail fiber ties up filtrate
The operating parameter of filter device: filtering 15~30m/h of filtering velocity, air-water backwashing, backwash rate 30L/ (s ﹒ m2), backwash cycle 18
~for 24 hours；
When Dairy Wastewater water-quality constituents index is unsatisfactory for above-mentioned parameter, process as shown in Figure 6 is sent to fixed water
Power sieve, it is anti-that starting runs first heavy oil removal conditioning tank, the AAFEB- eddy flow oxidation ditch of biochemical treatment module in materializing strategy module
Answer the non-of device, tiny flocculation device-filtering cloth filtering pool device-apparatus for ultraviolet disinfection in advanced treating module and Odor control module
Equilibrium plasma deodorization device；Wherein AAFEB operating parameter: 35~40% volume ratios add alumina particle, aluminium oxide granule
Grain 500~600 μm of partial size, 2.5~3.0g/cm of grain density3, 0.5~1.0g/cm of bulk density3, organic loading 8~
10kgCOD/(m3﹒ d)；Eddy flow oxidation ditch reactor operating parameter: 0.25~0.8m/s of the amount of pumping up water, suspended sediment concentration 3000~
5000mg/L, 1.2~2.5kgO of oxygen transfer efficiency2/ (kW ﹒ h)；
After above procedure step process, final nonequilibrium plasma deodorization device water outlet reaches discharge standard.
Embodiment 1
Certain Milk Processing Plant's influent waste water water quality of the present embodiment is shown in Table 2:
2 Dairy Wastewater water quality situation table of table
| Project | COD/(mg/L) | BOD/(mg/L) | Ammonia nitrogen/(mg/L) | SS/(mg/L) | Vegetable and animals oils/(mg/L) | pH |
| Water quality | 2524 | 760 | 55 | 110 | 350 | 8.0 |
It is followed the steps below using the technique that above-mentioned dairy wastewater treatment integrated system carries out dairy wastewater treatment:
Starting on-line monitoring analysis system multi-parameter Full-automatic water quality detection analysis instrument to enter system Dairy Wastewater into
Row monitoring analysis, analyzes Dairy Wastewater water-quality constituents, and according to composition parameter, PLC programmable logic controller (PLC) selects wastewater treatment
The specific starting module of system, the priority of composition parameter processing is successively are as follows: vegetable and animals oils content, c (COD) and c (BOD)/c
(COD)、c(NH3- N) or c (NH3- N)/total nitrogen (TN), C/N, c (SS), in the present embodiment, the vegetable and animals oils of Dairy Wastewater
350mg/L > 250mg/L is the first priority, therefore starts process 1 as shown in Figure 2, is sent to fixed hydraulic screen, opens
First heavy oil removal conditioning tank, coagulation floatation, the intermittent hydrolysis acidification of biochemical treatment module of dynamic operation materializing strategy module are anti-
Answer device, eddy flow oxidation ditch reactor, tiny flocculation device-filtering cloth filtering pool device of advanced treating module, apparatus for ultraviolet disinfection and
The nonequilibrium plasma deodorization device of Odor control module；Wherein coagulation floatation dosage PAFC 10~25mg/L dairy products
Waste water, polyethylene glycol oxide PEO 0.8~3mg/L Dairy Wastewater；The operating parameter of intermittent reactor for hydrolysis and acidification: T=20 DEG C,
HRT=4~4.8h, SRT=2~3d, COD 15~22kg/ of volumetric loading (m3﹒ d), eddy flow oxidation ditch reactor operating parameter:
0.25~0.8m/s of the amount of pumping up water, 3000~5000mg/L of suspended sediment concentration, 1.2~2.5kgO of oxygen transfer efficiency2/ (kW ﹒ h)；
Dispensing agent aluminium polychloride (PAC) and Powdered Activated Carbon in tiny flocculation device.
Final monitoring nonequilibrium plasma deodorization device water outlet meets following table limit value, then discharges；Otherwise beginning is returned to.
Con trolling index when the outer numerical value of bracket is 12 DEG C of water temperature >, control when numerical value is water temperature≤12 DEG C in bracket refer to
Mark.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (2)
1. the technique for carrying out dairy wastewater treatment using dairy wastewater treatment integrated system, which is characterized in that the dairy products are useless
Water process integrated system is made of on-line monitoring analysis system, Intelligence Feedback control system and waste water treatment system；It is wherein described
Waste water treatment system by physical separation module, materializing strategy module, biochemical treatment module, advanced treating module and Odor control
Module composition, the physical separation module include a fixed hydraulic screen；The materializing strategy module includes coagulation gas
Floating pond and just heavy oil removal conditioning tank；The biochemical treatment module includes anaerobism submodule and aerobic submodule, and wherein anaerobism is sub
Module includes intermittent reactor for hydrolysis and acidification and AAFEB, aerobic submodule include eddy flow oxidation ditch reactor and multi-stage anaerobic/
Aerobic floating stuffing Sludge Bed A/O-MBBR；The advanced treating module includes tiny flocculation device, filtering cloth filtering pool, double tail fiber dimension
Media filtration device and apparatus for ultraviolet disinfection；The Odor control module includes nonequilibrium plasma deodorization device；
The on-line monitoring analysis system includes multi-parameter Full-automatic water quality detection analysis instrument, and the Intelligence Feedback controls system
System includes PLC programmable logic controller (PLC), the signal input part and physical separation mould of multi-parameter Full-automatic water quality detection analysis instrument
Block, materializing strategy module, biochemical treatment module, advanced treating module are connected with the signal output end of Odor control module, signal
Output end is connected with the signal input part of PLC programmable logic controller (PLC), the signal output end of PLC programmable logic controller (PLC) with
The signal input part of physical separation module, materializing strategy module, biochemical treatment module, advanced treating module and Odor control module
It is connected；
In above-mentioned waste water treatment system, the water outlet of fixed hydraulic screen and coagulation floatation water inlet end and just sink oil removal conditioning tank into
Water end (W.E.) is separately connected, and just heavy oil removal conditioning tank water outlet is connect with coagulation floatation water inlet end, coagulation floatation water outlet difference
It is connected with intermittent reactor for hydrolysis and acidification water inlet end and AAFEB water inlet end, intermittent reactor for hydrolysis and acidification water outlet and rotation
It flows oxidation ditch reactor water inlet end to be connected, the water outlet AAFEB is connected with A/O-MBBR water inlet end, intermittent reactor for hydrolysis and acidification
Water outlet is also connected with the water outlet AAFEB, eddy flow oxidation ditch reactor water outlet and the water outlet A/O-MBBR and tiny flocculation device
Water inlet end is connected, and media filtration device water inlet end phase is tieed up with filtering cloth filtering pool water inlet end and double tail fiber respectively in tiny flocculation device water outlet
Even, filtering cloth filtering pool water outlet and double tail fiber dimension media filtration device water outlet are connected with ultra violet sterilizer water inlet end, ultraviolet to disappear
Malicious device water outlet is connected with nonequilibrium plasma deodorization device water inlet end, and nonequilibrium plasma deodorization device finally goes out
Water；Method specifically follows the steps below:
Starting on-line monitoring analysis system multi-parameter Full-automatic water quality detection analysis instrument supervises the Dairy Wastewater for entering system
Analysis is surveyed, Dairy Wastewater water-quality constituents is analyzed, according to composition parameter, PLC programmable logic controller (PLC) selects waste water treatment system
Specific starting module, composition parameter processing priority successively are as follows: vegetable and animals oils content, c (COD) and c (BOD)/c (COD),
c(NH3- N) or c (NH3- N)/TN, C/N, c (SS), specifically:
As vegetable and animals oils > 250mg/L in Dairy Wastewater, it is sent to fixed hydraulic screen, starting operation materializing strategy module
First heavy oil removal conditioning tank-coagulation floatation, the intermittent reactor for hydrolysis and acidification of biochemical treatment module, eddy flow oxidation ditch reaction
Device, the tiny flocculation device of advanced treating module, filtering cloth filtering pool device, apparatus for ultraviolet disinfection and Odor control module it is non-equilibrium
Plasma deodorization device；Wherein coagulation floatation dosage PAFC 10~25mg/L Dairy Wastewater, PEO0.8~3mg/L cream
Product waste water；The operating parameter of intermittent reactor for hydrolysis and acidification: T=20 DEG C, HRT=4~4.8h, SRT=2~3d, COD volume
15~22kg/ of load (m3﹒ d), eddy flow oxidation ditch reactor operating parameter: 0.25~0.8m/s of the amount of pumping up water, suspended sediment concentration
3000~5000mg/L, 1.2~2.5kgO of oxygen transfer efficiency2/ (kW ﹒ h)；Dispensing agent PAC and powder activity in tiny flocculation device
Charcoal；
As c (COD) > 2000mg/L in Dairy Wastewater, and when c (BOD)/c (COD) < 0.6, it is sent to fixed hydraulic screen,
Intermittent reactor for hydrolysis and acidification, A/O-MBBR, the filtering cloth filtering pool of advanced treating module, purple of starting operation biochemical treatment module
The nonequilibrium plasma deodorization device of outside line chlorination equipment and Odor control module；Wherein intermittent reactor for hydrolysis and acidification
Operating parameter: T=20 DEG C, HRT=4~4.8h, SRT=2~3d, COD 15~22kg/ of volumetric loading (m3﹒ d)；A/O-MBBR
Operating parameter: aerobic filler packing ratio 45~50%, anaerobism filler packing ratio 30~35%, three-level influent flow rate distribution ratio
40%:40%:20%, digestive juice reflux ratio 200~250%, filler COD 8.5~12.8kg/ of volumetric loading (m3﹒ d), HRT=
30~35h；Dispensing agent PAC and Powdered Activated Carbon in tiny flocculation device；
As c (NH in Dairy Wastewater3- N) >=70mg/L or c (NH3- N)/total nitrogen (TN)≤40% when, be sent to fixed water
Power sieve, starting operation biochemical treatment modules A AFEB, A/O-MBBR, the filtering cloth filtering pool of advanced treating module, apparatus for ultraviolet disinfection
With the nonequilibrium plasma deodorization device of Odor control module；The wherein operating parameter of AAFEB: 35~40% volume ratios addition
Alumina particle, 500~600 μm of alumina particle partial size, 2.5~3.0g/cm of grain density3, 0.5~1.0g/ of bulk density
cm3, 8~10kgCOD/ of organic loading (m3﹒ d)；A/O-MBBR operating parameter: aerobic filler packing ratio 45~50%, anaerobism filler
Packing ratio 30~35%, three-level influent flow rate distribution ratio 40%:40%:20%, digestive juice reflux ratio 100~200%, filler is total
Nitrogen 0.05~0.2kg/ of volumetric loading (m3﹒ d), HRT=25~30h；
As C/N < 3 in Dairy Wastewater, it is sent to fixed hydraulic screen, the AAFEB- in starting operation biochemical treatment module
Filtering cloth filtering pool device, apparatus for ultraviolet disinfection and Odor control module in A/O-MBBR, advanced treating module it is non-equilibrium etc.
Ion body deodorizing device；Wherein AAFEB operating parameter: 35~40% volume ratios add alumina particle, alumina particle partial size
500~600 μm, 2.5~3.0g/cm of grain density3, 0.5~1.0g/cm of bulk density3, 8~10kgCOD/ of organic loading (m3﹒
d)；A/O-MBBR operating parameter: aerobic filler packing ratio 45~50%, anaerobism filler packing ratio 30~35%, three-level feed water flow
Measure distribution ratio 40%:30%:30%, digestive juice reflux ratio 250~300%, 0.05~0.1kg/ of filler total nitrogen volumetric loading
(m3﹒ d), HRT=30~35h；
As c (SS) >=100mg/L in Dairy Wastewater, it is sent to fixed hydraulic screen, starting operation advanced treating module
Tiny flocculation device, double tail fiber tie up media filtration device-apparatus for ultraviolet disinfection and Odor control module nonequilibrium plasma
Deodorization device；Wherein dispensing agent PAC and Powdered Activated Carbon in tiny flocculation device；Double tail fiber ties up the operation ginseng of media filtration device
Number: filtering 15~30m/h of filtering velocity, air-water backwashing, backwash rate 30L/ (s ﹒ m2), backwash cycle 18~for 24 hours；
When Dairy Wastewater water-quality constituents index is unsatisfactory for above-mentioned parameter, it is sent to fixed hydraulic screen, starting operation materialization
First heavy oil removal conditioning tank, the AAFEB- eddy flow oxidation ditch reactor of biochemical treatment module, advanced treating module in processing module
In the nonequilibrium plasma deodorization of tiny flocculation device-filtering cloth filtering pool device-apparatus for ultraviolet disinfection and Odor control module
Device；Wherein AAFEB operating parameter: 35~40% volume ratios add alumina particle, 500~600 μm of alumina particle partial size,
2.5~3.0g/cm of grain density3, 0.5~1.0g/cm of bulk density3, 8~10kgCOD/ of organic loading (m3﹒ d)；Eddy flow oxidation
Ditch reactor operating parameter: 0.25~0.8m/s of the amount of pumping up water, 3000~5000mg/L of suspended sediment concentration, oxygen transfer efficiency 1.2
~2.5kgO2/ (kW ﹒ h)；
After above procedure step process, final nonequilibrium plasma deodorization device water outlet reaches discharge standard.
2. the technique of dairy wastewater treatment according to claim 1, it is characterised in that the dairy wastewater treatment is integrated
Fixed hydraulic screen is made of curved surface grizzly bar and frame in system, and compass screen surface forms the song that an inclination angle is gradually reduced from top to bottom
Face, grizzly bar is horizontal positioned, and grizzly bar section is wedge shape, and grizzly bar spacing is 0.25~0.5mm.
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