CN101898847A - System for treating sewage containing nonylphenol polyoxyethylene ether and metabolites - Google Patents
System for treating sewage containing nonylphenol polyoxyethylene ether and metabolites Download PDFInfo
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- CN101898847A CN101898847A CN2009100850293A CN200910085029A CN101898847A CN 101898847 A CN101898847 A CN 101898847A CN 2009100850293 A CN2009100850293 A CN 2009100850293A CN 200910085029 A CN200910085029 A CN 200910085029A CN 101898847 A CN101898847 A CN 101898847A
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- 239000002207 metabolite Substances 0.000 title claims abstract description 57
- 239000010865 sewage Substances 0.000 title claims abstract description 51
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 title claims abstract description 22
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 229940051841 polyoxyethylene ether Drugs 0.000 title claims abstract 16
- 229920000056 polyoxyethylene ether Polymers 0.000 title claims abstract 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000006385 ozonation reaction Methods 0.000 claims abstract 4
- -1 polyoxyethylene Polymers 0.000 claims description 50
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- 239000010802 sludge Substances 0.000 claims description 21
- 239000006228 supernatant Substances 0.000 claims description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 244000005700 microbiome Species 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims 1
- 230000002950 deficient Effects 0.000 claims 1
- 229920000847 nonoxynol Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 6
- 229940011871 estrogen Drugs 0.000 abstract description 4
- 239000000262 estrogen Substances 0.000 abstract description 4
- 229910003480 inorganic solid Inorganic materials 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 239000002957 persistent organic pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 description 49
- 239000000706 filtrate Substances 0.000 description 18
- 230000000630 rising effect Effects 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treatment Of Sludge (AREA)
Abstract
本发明涉及处理含壬基酚聚氧乙烯醚及代谢产物污水的生物-物化系统及污水的处理方法。系统的构成为：固液分离器的出水口通过管线与缺氧-好氧一体化生物反应器的进水口相连通，缺氧-好氧一体化生物反应器的出水口通过管线与过滤器的进水口相连通，过滤器的出水口通过管线与臭氧氧化装置的进水口相连通。固液分离器分离污水中的无机固体物质；缺氧-好氧一体化生物反应器去除污水中的有机污染物、氨氮、壬基酚聚氧乙烯醚及代谢产物等；过滤器去除生物单元出水中悬浮固体；臭氧氧化单元去除水中残留的壬基酚聚氧乙烯酸。本发明系统具有操作维护简单、污染物去除效率高等特点，避免了具有雌激素效应的壬基酚聚氧乙烯醚及其代谢产物向自然界的排放。
The invention relates to a bio-physicochemical system for treating sewage containing nonylphenol polyoxyethylene ether and metabolites and a treatment method for sewage. The composition of the system is: the water outlet of the solid-liquid separator is connected with the water inlet of the anoxic-aerobic integrated bioreactor through the pipeline, and the water outlet of the anoxic-aerobic integrated bioreactor is connected with the filter through the pipeline. The water inlet is connected, and the water outlet of the filter is connected with the water inlet of the ozone oxidation device through a pipeline. The solid-liquid separator separates inorganic solid substances in sewage; the anoxic-aerobic integrated bioreactor removes organic pollutants, ammonia nitrogen, nonylphenol polyoxyethylene ether and metabolites in sewage; Suspended solids in water; Ozonation unit removes NPA remaining in water. The system of the invention has the characteristics of simple operation and maintenance, high pollutant removal efficiency, etc., and avoids the discharge of nonylphenol polyoxyethylene ether and its metabolites with estrogen effect to nature.
Description
Technical field
The invention belongs to the treatment system of sewage, particularly processing contains the biology-materialization system of polyoxyethylene nonylphenol ether and meta-bolites sewage, and utilizes this biology-materialization system to containing the treatment process of polyoxyethylene nonylphenol ether and meta-bolites sewage thereof.
Background technology
Polyoxyethylene nonylphenol ether (NPnEOs) is widely used in industry as a kind of tensio-active agent of excellent property, agricultural and civil area, and wherein portioned product enters the municipal sewage system system with the back with sewage.Biological processing unit in the municipal sewage plant, NPnEOs can be degraded by microorganisms, and forms nonyl phenol (NP), short chain NPEOs and Nonyl pheno acid metabolism products such as (NPECs).Yet these meta-bolitess belong to hard-degraded substance, and compare with parent compound and to have stronger biological accumulation and estrogen effect.Still not having special both at home and abroad at present is the treatment process of the sewage of target contaminant with polyoxyethylene nonylphenol ether and meta-bolites thereof.Can handle the major technique that contains polyoxyethylene nonylphenol ether and meta-bolites sewage thereof has materialization treatment technology and biologic treating technique, and the materialization treatment technology comprises chemical oxidization method, electrolytic process, photocatalytic oxidation etc.; Biologic treating technique comprises active sludge and microbial film etc.
Handle the technology that contains polyoxyethylene nonylphenol ether and meta-bolites sewage thereof at present and have following subject matter:
(1) though the materialization treatment technology has treatment effect preferably, the cost costliness, energy consumption is big.
(2), there is potential to endanger to receiving water surrounding though the biologic treating technique economical and convenient contains the NPECs of strong estrogen effect in the water outlet.NPECs is one of meta-bolites of polyoxyethylene nonylphenol ether.
The present invention combines biotechnology to form and a kind ofly can handle the biology-materialization system that contains polyoxyethylene nonylphenol ether and meta-bolites sewage thereof effectively with the chemical oxidation technology, the polyoxyethylene nonylphenol ether of this system in not only can degradation of sewage, and its meta-bolites can be removed fully.
Summary of the invention
One of purpose of the present invention is to overcome existing the processing to contain the problem that polyoxyethylene nonylphenol ether and meta-bolites wastewater treatment facility face; Biotechnology and solid-liquid separation, filtration and chemical oxidation technology are combined, thereby the biology-materialization combined system that provides a kind of processing to contain polyoxyethylene nonylphenol ether and meta-bolites sewage thereof is for the control of polyoxyethylene nonylphenol ether in the sewage and meta-bolites thereof provides a valid approach.
Another object of the present invention provides to utilize to handle and contains the biology-materialization system of polyoxyethylene nonylphenol ether and meta-bolites sewage thereof to containing the treatment process of polyoxyethylene nonylphenol ether and meta-bolites sewage thereof.
The system that processing of the present invention contains polyoxyethylene nonylphenol ether and meta-bolites sewage is a kind of biology-materialization system, and it is to be combined by solid-liquid separator, anaerobic-aerobic integrated bioreactor, strainer and ozone oxidation reaction device; Wherein, the anaerobic-aerobic integrated bioreactor belongs to and utilizes biotechnology, and the ozone oxidation reaction device belongs to and utilizes chemical technology, and solid-liquid separator and strainer belong to and utilize physical technique.
The system that processing of the present invention contains polyoxyethylene nonylphenol ether and meta-bolites sewage comprises solid-liquid separator, anaerobic-aerobic integrated bioreactor, strainer and ozone oxidation reaction device as shown in Figure 1;
The water outlet of described solid-liquid separator is connected by the water-in of pipeline with the anaerobic-aerobic integrated bioreactor, the water outlet of anaerobic-aerobic integrated bioreactor is connected with the water-in of strainer by pipeline, and the water outlet of strainer is connected by the water-in of pipeline with the ozone oxidation device.
Described solid-liquid separator as shown in Figure 2, this solid-liquid separator is essentially the container of the cone shape of opening, on the wall on container top, have water outlet, on the wall of container on water outlet top, have overflow weir, bottom at container has mud discharging mouth, at the mud discharging mouth place shore pipe is installed further; The internal cavity of container is a solid-liquid displacement zone.
Described anaerobic-aerobic integrated bioreactor as shown in Figure 3, this bio-reactor is essentially the container of rectangular shape (as rectangle), this container is the oxygen-starved area by the different barrier partitions of 2 tile heights respectively, aerobic zone and settling region, and between the bottom of described low baffle plate and container the mud passage is arranged; Wherein, the zone between 2 baffle plates is an aerobic zone, and the zone that constitutes between high baffle plate in 2 baffle plates and the wall of container is the oxygen-starved area, and the zone that constitutes between low baffle plate in 2 baffle plates and the wall of container is the settling region; Top at a sidewall of the container that constitutes the oxygen-starved area has water-in, and agitator is installed in the oxygen-starved area; Bottom at the container that constitutes aerobic zone and oxygen-starved area has the sludge stream port, and the sludge stream port at 2 places is connected with the import and export of sludge reflux pump by pipeline respectively; Top at a sidewall of the container that constitutes the settling region has water outlet, and water outlet is connected with rising pipe.
Have overflow weir on described 2 baffle plates.
Described strainer as shown in Figure 4, this strainer is essentially the container of cylindrical shape, have dress filtrate mouth at the top of container, bottom at container has water outlet, the filtrate district of loading iron filings and activated carbon granule is arranged in the inside of container, is the catchment area between the bottom in filtrate district and the bottom of container; On the wall of container above the filtrate district, have water-in, and the water inlet pipe that stretches in the container is installed, on the wall of container at place, bottom, filtrate district, have and unload filtrate and porthole in the water inlet.
The water outlet place of described container bottom further is equipped with rising pipe.
Described ozone oxidation reaction device as shown in Figure 5, this device mainly is made of unit such as ozonizer, ozone oxidation reaction device and ozone tail gas destructors.
The pipeline that is connected with ozonizer is arranged at the bottom of described ozone oxidation reaction device, has water outlet on the wall of the ozone oxidation reaction device above this pipeline; Top at the ozone oxidation reaction device has water-in, and the pipeline that is connected with the ozone tail gas destructor is arranged at the top of ozone oxidation reaction device.
The system that processing of the present invention contains polyoxyethylene nonylphenol ether and meta-bolites sewage utilizes solid-liquid separator with the inorganic solid particles precipitate and separate such as silt in the sewage, control the residence time simultaneously, the suspension organism of avoiding sewage to be adsorbed with the stronger polyoxyethylene nonylphenol ether of hydrophobicity precipitates; The anaerobic-aerobic integrated bioreactor is divided into oxygen-starved area, aerobic zone and settling region, the long-chain polyoxyethylene nonylphenol ether is converted into the short chain polyoxyethylene nonylphenol ether in the oxygen-starved area, continuation the carboxylic acid reaction of EO chain is taken place and generates Nonyl pheno acid in aerobic zone then; Simultaneously, the anaerobic-aerobic integrated bioreactor has also been removed biodegradable organic and the nitrogen in the sewage effectively; Strainer can be held back the suspended solids in the bio-reactor water outlet; The ozone oxidation reaction device is removed the further oxygenolysis of the acid of the Nonyl pheno in the water by the strong oxidation of ozone.
The system that contains polyoxyethylene nonylphenol ether and meta-bolites sewage is handled in utilization of the present invention:
To contain polyoxyethylene nonylphenol ether and meta-bolites sewage thereof is entered in the solid-liquid separator by the water inlet pipe of solid-liquid separator and stops; Inoganic solids materials such as silt in the above-mentioned sewage obtain precipitation in the solid-liquid displacement zone of solid-liquid separator under the effect of gravity, and discharge by shore pipe; The supernatant liquor that obtains flows out through the rising pipe of solid-liquid separator, and enter oxygen-starved area in the anaerobic-aerobic integrated bioreactor by pipeline, supernatant liquor mixes with the microbic activity mud that contains in the oxygen-starved area, the mud mixture of oxygen-starved area arrives aerobic zone by the overflow weir of high baffle plate, circulate between oxygen-starved area and aerobic zone by sludge reflux pump then, effectively remove biodegradable organic, nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof in the supernatant liquor; Remove biodegradable organic, the overflow weir of the mixed solution of nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof through hanging down baffle plate enters the settling region and carries out solid-liquid separation, the mud that the is settled out mud passage by low baffle plate bottom automatically is back to aerobic zone in the anaerobic-aerobic integrated bioreactor, and the removal biodegradable organic that obtains, the water outlet of the settling region of the supernatant liquor of nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof in the anaerobic-aerobic integrated bioreactor enters in the strainer, holds back the removal biodegradable organic through filtrate, suspended solids in the supernatant liquor of nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof; Filtered water enters in the ozone oxidation reaction device through the rising pipe of filter and the water inlet pipe of ozone oxidation reaction device, removes residual Nonyl pheno acid in the water, and treat effluent is discharged by water outlet.
The described residence time is 3～10min.
Described supernatant liquor mixes with the microbic activity mud that contains in the oxygen-starved area, and it contains the content of microbic activity mud in supernatant liquor and is generally 2～4g/L.
The present invention combines the system that forms polyoxyethylene nonylphenol ether in a kind of can the disposing of sewage effectively and meta-bolites thereof with biotechnology with the materialization technology, farthest avoided having the polyoxyethylene nonylphenol ether of estrogen effect and meta-bolites thereof to natural discharging.The present invention has characteristics such as Operation and Maintenance is simple, contaminant removal efficiency height.The present invention has following characteristics:
1. sewage without preliminary sedimentation tank, can avoid hydrophobicity is stronger in the sewage nonyl phenol and short chain polyoxyethylene nonylphenol ether to be adsorbed on the primary sludge before biological treatment like this, and without carrying out a biological disposal upon just with primary sludge effluent sewerage factory;
2. sewage is after anoxic of the present invention and aerobic treatment, and most of polyoxyethylene nonylphenol ether is converted into carboxylic acid short chain polyoxyethylene nonylphenol ether soluble in water; Avoid it to be converted into stronger nonyl phenol of hydrophobicity and short chain polyoxyethylene nonylphenol ether as much as possible, thereby alleviated the burden of handling polyoxyethylene nonylphenol ether meta-bolites in the mud.
3. pass through the carboxylic acid short chain polyoxyethylene nonylphenol ether that is transformed after the biological treatment, be easy to be removed by ozone oxidation, therefore biological treatment provides condition for follow-up ozone Oxidation Treatment, and the two is in conjunction with having good effect for removing polyoxyethylene nonylphenol ether and meta-bolites thereof.
Description of drawings
Fig. 1. processing of the present invention contains the system schematic of polyoxyethylene nonylphenol ether and meta-bolites sewage.
Fig. 2. the solid-liquid separator synoptic diagram among the present invention.
Fig. 3. the anaerobic-aerobic integrated bioreactor synoptic diagram among the present invention.
Fig. 4. the strainer synoptic diagram in of the present invention.
Fig. 5. the ozone oxidation reaction device synoptic diagram among the present invention.
Reference numeral
1. water inlet pipe 2. solid-liquid displacement zone 3. overflow weirs
4. rising pipe 5. shore pipes 6. water inlet pipes
7. bio-reactor oxygen-starved area 8. agitators
9. bio-reactor aerobic zone 10. bio-reactor settling regions
11. rising pipe 12. sludge reflux pumps 13. overflow weirs
14. overflow weir 15. water inlet pipes 16. filtrate districts
17. catchment area 18. rising pipe 19-1. dress filtrate mouth
19-2. unload filtrate and porthole 20. water inlet pipes 21. ozonizers
22. ozone oxidation reaction device 23. ozone tail gas destructors 24. rising pipes
Embodiment
Embodiment 1
See also Fig. 1.System of the present invention comprises solid-liquid separator, anaerobic-aerobic integrated bioreactor, strainer and ozone oxidation reaction device.
The water outlet of described solid-liquid separator is connected by the water-in of pipeline with the anaerobic-aerobic integrated bioreactor, the water outlet of anaerobic-aerobic integrated bioreactor is connected with the water-in of strainer by pipeline, and the water outlet of strainer is connected by the water-in of pipeline with the ozone oxidation device.
See also Fig. 2.This solid-liquid separator is essentially the container of the cone shape of opening, and water inlet pipe 1 extend in the container, has water outlet on the wall on container top, at the water outlet place rising pipe 4 is installed further; On the wall of container on water outlet top, have overflow weir 3, have mud discharging mouth, shore pipe 5 further is installed at the mud discharging mouth place in the bottom of container; The internal cavity of container is a solid-liquid displacement zone 2.
See also Fig. 3.This bio-reactor is essentially rectangular container, this container is bio-reactor oxygen-starved area 7 by the different barrier partitions of 2 tile heights respectively, bio-reactor aerobic zone 9 and bio-reactor settling region 10, and between the bottom of described low baffle plate and container the mud passage is arranged; Wherein, the zone between 2 baffle plates is the bio-reactor aerobic zone, and the zone that constitutes between high baffle plate in 2 baffle plates and the wall of container is the bio-reactor oxygen-starved area, and the zone that constitutes between low baffle plate in 2 baffle plates and the wall of container is the bio-reactor settling region; Top at a sidewall of the container that constitutes the oxygen-starved area has water-in, and in the water inlet water inlet pipe 6 is installed, and agitator 8 is installed in the oxygen-starved area; Bottom at the container that constitutes aerobic zone and oxygen-starved area has the sludge stream port, and the sludge stream port at 2 places is connected by the import and export of pipeline with sludge reflux pump 12 respectively; Top at a sidewall of the container that constitutes the settling region has water outlet, and at the water outlet place rising pipe 11 is installed.
Have overflow weir 13 on the described high baffle plate, have overflow weir 14 on the low baffle plate.
See also Fig. 4.This strainer is essentially the container of cylindrical shape, has dress filtrate mouth 19-1 at the top of container, has water outlet in the bottom of container, and at the water outlet place rising pipe 18 is installed further; The filtrate district 16 of loading iron filings and activated carbon granule is arranged in the inside of container, is catchment area 17 between the bottom in filtrate district 16 and the bottom of container; On the wall of container above the filtrate district, have water-in, and the water inlet pipe 15 that stretches in the container is installed, on the wall of container at place, bottom, filtrate district, have and unload filtrate and porthole 19-2 in the water inlet.
See also Fig. 5.The ozone oxidation reaction device mainly is made of unit such as ozonizer 21, ozone oxidation reaction device 22 and ozone tail gas destructors 23.
The pipeline that is connected with ozonizer is arranged at the bottom of described ozone oxidation reaction device, has water outlet on the wall of the ozone oxidation reaction device above this pipeline, and at the water outlet place rising pipe 24 is installed; Top at the ozone oxidation reaction device has water-in, and in the water inlet water inlet pipe 20 is installed; The pipeline that is connected with the ozone tail gas destructor is arranged at the top of ozone oxidation reaction device.
The method that the system that utilizes above-mentioned processing to contain polyoxyethylene nonylphenol ether and meta-bolites sewage handles the municipal effluent that contains polyoxyethylene nonylphenol ether and meta-bolites thereof is:
To contain polyoxyethylene nonylphenol ether and meta-bolites sewage thereof is entered in the solid-liquid separator by the water inlet pipe 1 of solid-liquid separator and stopped 5 minutes; Inoganic solids materials such as silt in the above-mentioned sewage obtain precipitation in the solid-liquid displacement zone of solid-liquid separator under the effect of gravity, and discharge by shore pipe 5; The supernatant liquor that obtains flows out through the rising pipe 4 of solid-liquid separator, and enter 1 hour residence time in the oxygen-starved area 7 by the water inlet pipe 6 of anaerobic-aerobic integrated bioreactor, supernatant liquor mixes with the microbic activity mud that contains in the oxygen-starved area, wherein, containing the content range of microbic activity mud (mud is taken from sewage work's settling tank) in supernatant liquor is 2～4g/L.The mud mixture of oxygen-starved area arrives aerobic zone 9 by the overflow weir 13 of high baffle plate, the residence time is 8 hours, circulate between oxygen-starved area 7 and aerobic zone 9 by sludge reflux pump 12 then, return sludge ratio between aerobic zone and oxygen-starved area is 200～300%, effectively removes biodegradable organic, nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof in the supernatant liquor; Remove biodegradable organic, the overflow weir 14 of the mixed solution of nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof through hanging down baffle plate enters settling region 10 and carries out solid-liquid separation, the mud that the is settled out mud passage by low baffle plate bottom automatically is back to aerobic zone in the anaerobic-aerobic integrated bioreactor, and the removal biodegradable organic that obtains, the rising pipe 11 at the water outlet place of the settling region of the supernatant liquor of nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof in the anaerobic-aerobic integrated bioreactor and the water inlet pipe 15 of strainer enter in the strainer, and the filtrate in filtrate district 16 is held back the removal biodegradable organic, suspended solids in the supernatant liquor of nitrogen and polyoxyethylene nonylphenol ether and meta-bolites thereof; Filtered water enters in the ozone oxidation reaction device 22 through the rising pipe 18 of filter and the water inlet pipe 20 of ozone oxidation reaction device, removes residual Nonyl pheno acid in the water, and treat effluent is by rising pipe 24 dischargings at water outlet place.
The ozone amount that is provided by ozonizer is 4mg/L, and the ozone time that provides is 10min.The concentration of polyoxyethylene nonylphenol ether and meta-bolites thereof is listed in table 1 in sewage and the water after biological treatment and ozone Oxidation Treatment.As can be seen, after biological treatment, the clearance of polyoxyethylene nonylphenol ether and meta-bolites thereof is 89.9%; After ozone Oxidation Treatment, the clearance of polyoxyethylene nonylphenol ether and meta-bolites thereof is 93.3%.Sewage is after system handles of the present invention, and total clearance of polyoxyethylene nonylphenol ether and meta-bolites thereof has farthest avoided this type of material to natural discharging up to 99.3%.
The change in concentration (μ mol/L) (ND represents to be lower than detectability) of polyoxyethylene nonylphenol ether and meta-bolites thereof before and after table 1 sewage disposal
| NP | ?NPnEOs(n＝1，2) | NPnEOs(n≥3) | NPECs | Summation | |
| Former water | 0.037 | 0.064 | 0.016 | 0.032 | 0.149 |
| The biological treatment water outlet | 0.001 | 0.001 | 0.001 | 0.012 | 0.015 |
| The ozone oxidation water outlet | 0.0006 | 0.0004 | ND | ND | 0.001 |
Claims (8)
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| CN2009100850293A CN101898847B (en) | 2009-05-27 | 2009-05-27 | System for treating sewage containing nonylphenol polyoxyethylene ether and metabolin |
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| CN2009100850293A CN101898847B (en) | 2009-05-27 | 2009-05-27 | System for treating sewage containing nonylphenol polyoxyethylene ether and metabolin |
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| CN101898847A true CN101898847A (en) | 2010-12-01 |
| CN101898847B CN101898847B (en) | 2011-10-26 |
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| CN104724896A (en) * | 2015-03-04 | 2015-06-24 | 同济大学 | Method for promoting anaerobic degradation of estrogen nonylphenol in sludge through alkali treatment |
Family Cites Families (1)
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| JP4903459B2 (en) * | 2006-03-09 | 2012-03-28 | 住友精密工業株式会社 | Refractory organic matter treatment method |
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2009
- 2009-05-27 CN CN2009100850293A patent/CN101898847B/en not_active Expired - Fee Related
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| CN102701408A (en) * | 2012-02-06 | 2012-10-03 | 西安费斯达自动化工程有限公司 | Purifying treatment method of fatty glyceride polyethenoxy ether with ozone |
| CN104111294A (en) * | 2014-07-09 | 2014-10-22 | 四川大学 | Method for rapidly detecting biological degradability of organic chemicals based on activated sludge |
| CN104111294B (en) * | 2014-07-09 | 2016-03-30 | 四川大学 | A method for rapid detection of biodegradability of organic chemicals based on activated sludge |
| CN104192974A (en) * | 2014-09-23 | 2014-12-10 | 陈岳芹 | Device and method for decomposing 4-nonyl-phenoxyacetic acid |
| CN104192939A (en) * | 2014-09-23 | 2014-12-10 | 陈岳芹 | 4-nonyl-phenoxy-dioxygen vinethene decomposing method |
| CN104192939B (en) * | 2014-09-23 | 2015-06-10 | 倪海霞 | 4-nonyl-phenoxy-dioxygen vinethene decomposing method |
| CN104192974B (en) * | 2014-09-23 | 2015-07-01 | 周佳瑜 | Device and method for decomposing 4-nonyl-phenoxyacetic acid |
| CN104724896A (en) * | 2015-03-04 | 2015-06-24 | 同济大学 | Method for promoting anaerobic degradation of estrogen nonylphenol in sludge through alkali treatment |
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