CN104961292A - Modularized integrated system and method applicable to treatment of low-temperature livestock and poultry slaughtering waste water in north - Google Patents
Modularized integrated system and method applicable to treatment of low-temperature livestock and poultry slaughtering waste water in north Download PDFInfo
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Abstract
The invention especially relates to a modularized integrated system and method applicable to treatment of low-temperature livestock and poultry slaughtering waste water in the north, belonging to the technical field of water treatment. The modularized integrated system comprises the following concrete modules: a pre-treating module used for intercepting large pollutants in the livestock and poultry waste water, a primary physicochemical module used for adjusting and biological hydrolysis, a secondary biochemical module and a tertiary in-depth treating module, wherein the secondary biochemical module comprises an anaerobic submodule and an aerobic submodule which are in series connection, and the tertiary in-depth treating module comprises a micro-flocculation submodule, a cloth filter and an ultraviolet disinfection submodule.
Description
Technical field
The invention belongs to water-treatment technology field, particularly relate to and be a kind ofly suitable for modularization integrated system and the method that northern low temperature livestock and poultry slaughter wastewater treatment.
Background technology
Butchery is one of China's export mainstay industry of earning foreign exchange and ensuring supply, bird slaughterhouse wastewater is typical water quality characteristics: high organic concentration, high-concentration ammonia-nitrogen, high suspended matter concentration, be one of maximum organic contamination source of China, directly discharge will cause high risks to environment.
Butchery sewage flow rate is large and fluctuation is strong, according to statistics, butchers 100 chicken waste discharge 1.0-1.5m
3, butcher 100 duck waste discharge 2.0-3.0m
3, butcher 100 goose waste discharge 2.0-3.0m
3.
Slaughterhouse wastewater is a kind of typical high concentrated organic wastewater, contained pollutent is mainly the organic substance in physical aspects such as dissolving, colloid and suspensions, its contamination index mainly contains pH, BOD, COD, SS etc., also have total nitrogen, organonitrogen, ammonia nitrogen, nitric nitrogen, total solids, total phosphorus, sulfate radical, sulfide and total alkalinity etc. in addition.General slaughterhouse wastewater has following characteristics:
(1) waste water of livestock poultry is generally in sorrel, has unpleasant bad smell, and wherein containing a large amount of dirts such as blood stains, grease matter, hair, meat bits, bone bits, internal organ foreign material, indigested food, ight soil, solid suspension content is high, can reach 1200mg/L.
(2) waste water of livestock poultry organic content is high, and organic pollutant content is high, and COD is generally at 800 ~ 2200mg/L.BOD/COD is greater than 0.5, and wastewater biodegradability is better.Nutrition in waste water of livestock poultry is nitrogen, phosphorus mainly, and wherein nitrogen mainly exists with organism or ammonium salts, and phosphorus mainly exists in the form of phosphate.
Improvement at present to such waste water, all adopts the treatment process based on biological process, comprises aerobic, anaerobism, the treatment systems such as oxygen of holding concurrently.Pretreatment technology, arranges and drags for a mao machine, grid, oil trap, equalizing tank or settling tank etc., reduces the suspended substance and fat content that enter biological treatment structures, guarantees that structures normally run.
Summary of the invention
The defect that the present invention exists to overcome prior art, the object of this invention is to provide and be a kind ofly suitable for the modularization integrated technology process that northern low temperature livestock and poultry slaughter wastewater treatment, for the waste water produced in small-sized slaughtering enterprise production process unmanageable problem under northern cold condition, carry out the integrated and Parametric designing of technique, realize technical module, intellectuality, integrated.
The technology used in the present invention solution is suitable for the modularization integrated system that northern low temperature livestock and poultry slaughter wastewater treatment, concrete employing comprises with lower module: for retaining the pre-processing module of the pollutent of bulk in waste water of livestock poultry, for regulating and the one-level materialization module of biological hydrolysis, secondary biochemical module and three grades of advanced treatment modules; Described secondary biochemical module comprises anaerobism submodule and aerobic submodule, described anaerobism submodule and aerobic submodule arranged in series; Three grades of described advanced treatment modules comprise tiny flocculation, filtering cloth filtering pool and disinfection by ultraviolet light submodule.
Described pre-processing module is drum-type self-cleaning filter specifically.
The regulon of described one-level materialization module and hydrolysis unit are also integrated in same reactor, and described regulon specifically adopts an equalizing tank, and described hydrolysis unit adopts biological enzyme hydrolysis method.
The anaerobism submodule of described secondary biochemical module comprises Anaerobic Sequencing Bath Reactor (ASBR), flap anaerobic reactor (ABR); Aerobic submodule comprises pressure type biological contact oxidation reactor, membrane bioreactor MBR.
Employing is suitable for the processing method that northern low temperature livestock and poultry slaughter the modularization integrated system of wastewater treatment,
Following program is adopted to run:
Program 1: as water inlet water temperature < 12 DEG C, secondary biochemical module runs [ABR-pressure biological contact oxidation reactor], three grades of advanced treatment modules run [tiny flocculation-filtering cloth filtering pool-disinfection by ultraviolet light], ABR operating parameter: COD volumetric loading 1.6 ~ 2.0kg/ (m
3d), upflow velocity u
s=0.1 ~ 0.8m/h, pressure bio-contact oxidation operating parameter: pressure range 0.08 ~ 0.4MPa, filler COD volumetric loading 5.5 ~ 8.5kg/ (m
3d), HRT=10 ~ 12h, tiny flocculation dispensing agent PAC and Powdered Activated Carbon;
Program 2: as water inlet c (COD) > 1000mg/L, and during B/C < 0.4, secondary biochemical module runs [ASBR-pressure biological contact oxidation reactor], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, pressure bio-contact oxidation operating parameter: pressure range 0.08 ~ 0.4MPa, filler COD volumetric loading 8.5 ~ 12.8kg/ (m
3d), HRT=10 ~ 12h:
Program 3: as water inlet c (NH
3-N)>=150mg/L, or NH
3during-N/TN≤60%, secondary biochemical module runs [ASBR-MBR (A/O)], three grades of advanced treatment modules run [disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times ratio)=1: 5, pH=7.5 ~ 8.5, MBR (A/O) operating parameter: Ta/To (hypoxic exposure/aerobic time)=1: 4, water temperature 12 ~ 35 DEG C, aerobic MLSS=0.32 ~ 2.8g/L, sludge loading 0.60 ~ 1.80kg/ (kgd);
Program 4: as water inlet C/N < 3, secondary biochemical module runs [ABR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ABR operating parameter: COD volumetric loading 1.6 ~ 2.2kg/ (m
3d), upflow velocity U
s=0.5 ~ 2.0m/h, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h;
Program 5: as water inlet c (TP)>=25mg/L, secondary biochemical module runs [ASBR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [tiny flocculation-filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h, tiny flocculation dispensing agent PAC and Powdered Activated Carbon.
Under described Con trolling index does not meet the restricted condition of program 1 to program 5, system is run according to following program: secondary biochemical module runs [ASBR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h.
Described pre-processing module and one-level materialization module all need to run under any condition of water quality.
The main usable condition of each program and water outlet limit value see the following form.
Compared with prior art, the beneficial effect that the present invention has is:
1, be suitable for that concentration is high, complicated component and large little, fast, loose waste water of livestock poultry process of fluctuating;
2, process combination is integrated, intelligent, the degree of modularity is high, and being conducive to technical transform is integrated equipment, saves space;
3, technical maturity is reliable, can process oil, nitrogen, phosphorus, stably reaching standard, water outlet reproducible utilization simultaneously;
4, technical process is succinct smooth, easy to operate, has promotional value widely;
5, anti impulsion load, operational management is easy, working cost is low.
6, the ABR full name anaerobic baffled reactor adopted, the a series of traverse baffle due at right angle setting in the reactor, processed waste water makes current downflow along traverse baffle in reactor, because this increasing the total length of flow across of current in reactor, thus reactor is enable to adapt to lower water inlet water temperature.Pressure biological contact oxidation reactor improves the pressure in reactor, accelerates the transfer rate of oxygen, is suitable for cold condition and runs.
Accompanying drawing explanation
Fig. 1 is system interface chart of the present invention;
Fig. 2 is the schema of system runs program 1;
Fig. 3 is the schema of system runs program 2;
Fig. 4 is the schema of system runs program 3;
Fig. 5 is the schema of system runs program 4;
Fig. 6 is the schema of system runs program 5.
Wherein 1, online water quality monitoring system; 2, pre-processing module; 3, one-level materialization module; 3-1, the unit that is in harmonious proportion; 3-2, hydrolysis unit; 4, secondary biochemical module; 4-1, Anaerobic Sequencing Bath Reactor; 4-2, flap anaerobic reactor; 4-3, pressure type biological contact oxidation reactor; 4-4, membrane bioreactor MBR; 5, advanced treatment module; 5-1, tiny flocculation filtering cloth filtering pool; 5-2, disinfection by ultraviolet light submodule; 6, computer automatic control system.
Embodiment
As shown in Figure 1, be suitable for the modularization integrated system that northern low temperature livestock and poultry slaughter wastewater treatment, concrete employing comprises with lower module: for retaining the pre-processing module of the pollutent of bulk in waste water of livestock poultry, for regulating and the one-level materialization module of biological hydrolysis, secondary biochemical module and three grades of advanced treatment modules; Described secondary biochemical module comprises anaerobism submodule and aerobic submodule, described anaerobism submodule and aerobic submodule arranged in series; Three grades of described advanced treatment modules comprise tiny flocculation, filtering cloth filtering pool and disinfection by ultraviolet light submodule, three's arranged in series.
Native system to detect waste water by automation control system and processes, and is included in line monitoring system, computer processing and automatic control system.Be arranged on line monitoring system at feed-water end, by collecting the water quality information carrying out former water, analyzing, export result to automatic control system, send signal by automatic control system to individual module or submodule unit, to control the automatic operating of integrated artistic.
Described pre-processing module is drum-type self-cleaning filter specifically.Mainly retain the pollutent of bulk in waste water of livestock poultry, as the fragment, meat mincing skin, hair slag etc. of internal organ, ensure that subsequent biochemical system is normally run.Drum-type self-cleaning filter is set to ring-type grid cylinder, and waste water is 0.95-1.65m/s by flow velocity.
The regulon of described one-level materialization module and hydrolysis unit are also integrated in same reactor, and described regulon specifically adopts an equalizing tank, and described hydrolysis unit adopts biological enzyme hydrolysis method.Regulon, effect mainly contains two, and one is regulating pondage, and the water yield is stablized, and two is regulating water qualities.Hydrolysis unit adopts biological enzyme hydrolysis method, and lipase reduces fat particle particle diameter, and bacterial enzyme decomposes larger molecular organics.
The anaerobism submodule of described secondary biochemical module comprises Anaerobic Sequencing Bath Reactor (ASBR), flap anaerobic reactor (ABR); Aerobic submodule comprises pressure type biological contact oxidation reactor (can normal pressure run), membrane bioreactor MBR (A/O bis-segmented mode is run, and namely arranges anoxic pond and Aerobic Pond).
As shown in Figures 2 to 6: a kind of employing is suitable for the processing method that northern low temperature livestock and poultry slaughter the modularization integrated system of wastewater treatment,
Following program is adopted to run:
Program 1: as water inlet water temperature < 12 DEG C, secondary biochemical module runs [ABR-pressure biological contact oxidation reactor], three grades of advanced treatment modules run [tiny flocculation-filtering cloth filtering pool-disinfection by ultraviolet light], ABR full name anaerobic baffled reactor, the a series of traverse baffle due at right angle setting in the reactor, processed waste water makes current downflow along traverse baffle in reactor, because this increasing the total length of flow across of current in reactor, thus reactor is enable to adapt to lower water inlet water temperature.Pressure biological contact oxidation reactor improves the pressure in reactor, accelerates the transfer rate of oxygen, is suitable for cold condition and runs.ABR operating parameter: COD volumetric loading 1.6 ~ 2.0kg/ (m
3d), upflow velocity u
s=0.1 ~ 0.8m/h, pressure bio-contact oxidation operating parameter: pressure range 0.08 ~ 0.4MPa, filler COD volumetric loading 5.5 ~ 8.5kg/ (m
3d), HRT=10 ~ 12h, tiny flocculation dispensing agent PAC and Powdered Activated Carbon;
Program 2: as water inlet c (COD) > 1000mg/L, and during B/C < 0.4, secondary biochemical module runs [ASBR-pressure biological contact oxidation reactor], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, pressure bio-contact oxidation operating parameter: pressure range 0.08 ~ 0.4MPa, filler COD volumetric loading 8.5 ~ 12.8kg/ (m
3d), HRT=10 ~ 12h:
Program 3: as water inlet c (NH
3-N)>=150mg/L, or NH
3during-N/TN≤60%, secondary biochemical module runs [ASBR-MBR (A/O)], three grades of advanced treatment modules run [disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times ratio)=1: 5, pH=7.5 ~ 8.5, MBR (A/O) operating parameter: Ta/To (hypoxic exposure/aerobic time)=1: 4, water temperature 12 ~ 35 DEG C, aerobic MLSS=0.32 ~ 2.8g/L, sludge loading 0.60 ~ 1.80kg/ (kgd);
Program 4: as water inlet C/N < 3, secondary biochemical module runs [ABR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ABR operating parameter: COD volumetric loading 1.6 ~ 2.2kg/ (m
3d), upflow velocity u
s=0.5 ~ 2.0m/h, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h;
Program 5: as water inlet c (TP)>=25mg/L, secondary biochemical module runs [ASBR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [tiny flocculation-filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h, tiny flocculation dispensing agent PAC and Powdered Activated Carbon.
Under described Con trolling index does not meet the restricted condition of program 1 to program 5, system is run according to following program: secondary biochemical module runs [ASBR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h.
Described pre-processing module and one-level materialization module all need to run under any condition of water quality.
Monitoring water outlet meets following table limit value, then discharge; Otherwise return to top.
1. Con trolling index when the outer numerical value of bracket is water temperature > 12 DEG C, Con trolling index when numerical value is water temperature≤12 DEG C in bracket.
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; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; 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 the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (7)
1. be suitable for the modularization integrated system that northern low temperature livestock and poultry slaughter wastewater treatment, it is characterized in that: concrete employing comprises with lower module: for retaining the pre-processing module of the pollutent of bulk in waste water of livestock poultry, for regulating and the one-level materialization module of biological hydrolysis, secondary biochemical module and three grades of advanced treatment modules; Described secondary biochemical module comprises anaerobism submodule and aerobic submodule, described anaerobism submodule and aerobic submodule arranged in series; Three grades of described advanced treatment modules comprise tiny flocculation, filtering cloth filtering pool and disinfection by ultraviolet light submodule.
2. be according to claim 1ly suitable for the modularization integrated system that northern low temperature livestock and poultry slaughter wastewater treatment, it is characterized in that: described pre-processing module is drum-type self-cleaning filter specifically.
3. be according to claim 1ly suitable for the modularization integrated system that northern low temperature livestock and poultry slaughter wastewater treatment, it is characterized in that: the regulon of described one-level materialization module and hydrolysis unit are also integrated in same reactor, described regulon specifically adopts an equalizing tank, and described hydrolysis unit adopts biological enzyme hydrolysis method.
4. the large-scale workpiece based on induction heating partial heat treatment according to claim 1 repairs optimization method, it is characterized in that: the anaerobism submodule of described secondary biochemical module comprises Anaerobic Sequencing Bath Reactor (ASBR), flap anaerobic reactor (ABR); Aerobic submodule comprises pressure type biological contact oxidation reactor, membrane bioreactor MBR.
5. adopt described in claim 1 and be suitable for the processing method that northern low temperature livestock and poultry slaughter the modularization integrated system of wastewater treatment, it is characterized in that:
Following program is adopted to run:
Program 1: as water inlet water temperature < 12 DEG C, secondary biochemical module runs [ABR-pressure biological contact oxidation reactor], three grades of advanced treatment modules run [tiny flocculation-filtering cloth filtering pool-disinfection by ultraviolet light], ABR operating parameter: COD volumetric loading 1.6 ~ 2.0kg/ (m
3d), upflow velocity u
s=0.1 ~ 0.8m/h, pressure bio-contact oxidation operating parameter: pressure range 0.08 ~ 0.4MPa, filler COD volumetric loading 5.5 ~ 8.5kg/ (m
3d), HRT=10 ~ 12h, tiny flocculation dispensing agent PAC and Powdered Activated Carbon;
Program 2: as water inlet c (COD) > 1000mg/L, and during B/C < 0.4, secondary biochemical module runs [ASBR-pressure biological contact oxidation reactor], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, pressure bio-contact oxidation operating parameter: pressure range 0.08 ~ 0.4MPa, filler COD volumetric loading 8.5 ~ 12.8kg/ (m
3d), HRT=10 ~ 12h;
Program 3: as water inlet c (NH
3-N)>=150mg/L, or NH
3during-N/TN≤60%, secondary biochemical module runs [ASBR-MBR (A/O)], three grades of advanced treatment modules run [disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times ratio)=1: 5, pH=7.5 ~ 8.5, MBR (A/O) operating parameter: Ta/To (hypoxic exposure/aerobic time)=1: 4, water temperature 12 ~ 35 DEG C, aerobic MLSS=0.32 ~ 2.8g/L, sludge loading 0.60 ~ 1.80kg/ (kg.d);
Program 4: as water inlet C/N < 3, secondary biochemical module runs [ABR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ABR operating parameter: COD volumetric loading 1.6 ~ 2.2kg/ (m
3d), upflow velocity u
s=0.5 ~ 2.0m/h, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h;
Program 5: as water inlet c (TP)>=25mg/L, secondary biochemical module runs [ASBR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [tiny flocculation-filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h, tiny flocculation dispensing agent PAC and Powdered Activated Carbon.
6. employing according to claim 5 is suitable for the processing method that northern low temperature livestock and poultry slaughter the modularization integrated system of wastewater treatment, it is characterized in that: under described Con trolling index does not meet the restricted condition of program 1 to program 5, system is run according to following program: secondary biochemical module runs [ASBR-biological contact oxidation reactor (normal pressure operation)], three grades of advanced treatment modules run [filtering cloth filtering pool-disinfection by ultraviolet light], ASBR operating parameter: tf/tr (flooding time/reaction times)=1: 4, pH=7.0 ~ 8.2, biological contact oxidation reactor operating parameter: filler COD volumetric loading 5.5 ~ 12.8kg/ (m
3d), HRT=6 ~ 12h.
7. employing according to claim 5 is suitable for the processing method that northern low temperature livestock and poultry slaughter the modularization integrated system of wastewater treatment, it is characterized in that: described pre-processing module and one-level materialization module all need to run under any condition of water quality.
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| CN106800357B (en) * | 2017-01-09 | 2020-11-24 | 江苏卓燃工程咨询有限公司 | Modular integration for wool washing wastewater treatment and process method thereof |
| CN106587542A (en) * | 2017-01-16 | 2017-04-26 | 沈阳建筑大学 | Integrated process system and method for treating cotton textile industry wastewater |
| CN106587542B (en) * | 2017-01-16 | 2019-06-04 | 沈阳建筑大学 | A kind of integrated technique system and method handling cotton industry waste water |
| CN108083579A (en) * | 2017-12-27 | 2018-05-29 | 沈阳建筑大学 | Handle the modularization integrated system and technique of non-fermented class bean product production waste water |
| CN108083579B (en) * | 2017-12-27 | 2021-02-26 | 植物肉(杭州)健康科技有限公司 | Modularized integrated system and process for treating non-fermented bean product production wastewater |
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