CN108558090A - A kind of staged wastewater disinfection method and device - Google Patents
A kind of staged wastewater disinfection method and device Download PDFInfo
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- CN108558090A CN108558090A CN201810516803.0A CN201810516803A CN108558090A CN 108558090 A CN108558090 A CN 108558090A CN 201810516803 A CN201810516803 A CN 201810516803A CN 108558090 A CN108558090 A CN 108558090A
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- disinfection
- monosulfate
- peroxy
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002351 wastewater Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000010865 sewage Substances 0.000 claims abstract description 32
- FHHJDRFHHWUPDG-UHFFFAOYSA-L peroxysulfate(2-) Chemical compound [O-]OS([O-])(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-L 0.000 claims abstract description 27
- 239000000126 substance Substances 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 230000001954 sterilising effect Effects 0.000 claims description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 12
- 229910052753 mercury Inorganic materials 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 5
- 238000011012 sanitization Methods 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 abstract description 18
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 abstract description 5
- -1 hydroxyl radical free radical Chemical class 0.000 abstract description 4
- 241000370738 Chlorion Species 0.000 abstract description 3
- 238000003918 potentiometric titration Methods 0.000 abstract description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 12
- JXTHNDFMNIQAHM-UHFFFAOYSA-N dichloroacetic acid Chemical compound OC(=O)C(Cl)Cl JXTHNDFMNIQAHM-UHFFFAOYSA-N 0.000 description 12
- 239000000460 chlorine Substances 0.000 description 6
- 229960005215 dichloroacetic acid Drugs 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 6
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 4
- 150000001350 alkyl halides Chemical class 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 230000002550 fecal effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- PUKLDDOGISCFCP-JSQCKWNTSA-N 21-Deoxycortisone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)C)(O)[C@@]1(C)CC2=O PUKLDDOGISCFCP-JSQCKWNTSA-N 0.000 description 1
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 1
- FCYKAQOGGFGCMD-UHFFFAOYSA-N Fulvic acid Natural products O1C2=CC(O)=C(O)C(C(O)=O)=C2C(=O)C2=C1CC(C)(O)OC2 FCYKAQOGGFGCMD-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002509 fulvic acid Substances 0.000 description 1
- 229940095100 fulvic acid Drugs 0.000 description 1
- 239000004021 humic acid Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3227—Units with two or more lamps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention provides a kind of staged wastewater disinfection methods, belong to technical field of sewage, and the present invention carries out chemical disinfection after mixing peroxy-monosulfate, villaumite and treatment sewage, and the water body after chemical disinfection, which is carried out ultraviolet irradiation, carries out ultraviolet disinfection.The present invention puts into peroxy-monosulfate and villaumite into treatment sewage, the chlorion in villaumite is set to generate HOCl with peroxy-monosulfate slow reaction, reduce the generation of disinfection by-products, extend the residence time of reaction tank, to reach good Disinfection Effect, ultraviolet irradiation is subsequently used, remaining peroxy-monosulfate is activated, so that it is decomposed and generates potentiometric titrations SO4 ‑·With hydroxyl radical free radical (OH), generated disinfection by-products in water body is further cut down.
Description
Technical field
The present invention relates to technical field of sewage, more particularly to a kind of staged wastewater disinfection method and device.
Background technology
Increasingly stringent with water standard, the requirement to wastewater disinfection is also continuously improved, wastewater disinfection not only for
Meet and kill pathogen, while also to ensure that water outlet does not generate receiving water body harm after sterilizing.Liquid chlorine is used as one for a long time
The ripe disinfectant application of kind has one-hundred-year history, and the Disinfection Effect of liquid chlorine obtains recognized by people, meanwhile, liquid chlorine disinfection
Generated harm is also increasingly recognized by people.In order to ensure water quality sterilizes completely, often put into accessing pending water
A large amount of liquid chlorine is not only a kind of waste of chlorine resource, and with the analysis and research of the by-product generated to chlorination, input
Chlorine can and water body in the reactions such as various existing organic matters such as humic acid, fulvic acid, will produce a large amount of alkyl halide and chlorination
Organic matter so that the by-products such as all kinds of chlorinated organics have different degrees of raising in treated sewage, easily cause secondary dirt
Dye.
Invention content
In view of this, present invention aims at provide a kind of staged wastewater disinfection method and device, passing through of the present invention
It learns disinfection and ultraviolet irradiation is combined the generation for reducing disinfection by-products, alleviate secondary pollution.
The present invention provides a kind of staged wastewater disinfection methods, comprise the steps of：
Peroxy-monosulfate, villaumite and treatment sewage are mixed and carry out chemical disinfection, crosses a sulphur after the mixing in water body
A concentration of 0.01mmol/L~100mmol/L that hydrochlorate is calculated with element sulphur, chlorine ion concentration are 0.01mol/L~1mol/L；
Water body after chemical disinfection is subjected to ultraviolet irradiation, the radiation intensity of the ultraviolet irradiation is 1.0~100mW/
cm2。
Preferably, the villaumite is NaCl, KCl.
Preferably, the peroxy-monosulfate is permonosulphuric acid sodium and permonosulphuric acid potassium.
Preferably, the time of the chemical disinfection is 0.5~4h.
Preferably, the absorbing wavelength of ultraviolet light is 250~270nm in the ultraviolet irradiation.
Preferably, the COD value of the treatment sewage be 5~300mg/L, BOD values be 5~100mg/L, TN be 2~
40mg/L, NH3- N is 0.5~25mg/L, and TP is 0.05~0.8mg/L.
The present invention also provides a kind of devices for staged wastewater disinfection method described in claim 1, including according to
The chemical sanitization system of secondary connection and ultraviolet disinfection pond, the chemical sanitization system include sterilization pool, are arranged in sterilization pool
Blender and balling iron for offeing medicine to sterilization pool, UV illuminators are set above the ultraviolet disinfection pond.
Preferably, the UV illuminators are medium pressure mercury lamp or low pressure mercury lamp.
Preferably, the UV illuminators are designed by group, the long 0.5m of every fluorescent tube of medium pressure mercury lamp or low pressure mercury lamp, lamp
Tube spacing is 0.2m, and the irradiation sewage quantity of every fluorescent tube is 0.16m3。
Preferably, device according to claim 9, which is characterized in that the fluorescent tube quantity n=flows Q × stop
Time t/0.16.
Advantageous effects：The present invention provides a kind of staged wastewater disinfection method, the present invention is by peroxy-monosulfate, chlorine
Salt and treatment sewage mixing carry out chemical disinfection, after the mixing in water body peroxy-monosulfate calculated with element sulphur it is a concentration of
0.01mmol/L~100mmol/L, chlorine ion concentration are 0.01mol/L~1mol/L；Water body after chemical disinfection is carried out purple
The radiation intensity of external exposure, the ultraviolet irradiation is 1.0~100mW/cm2, the time of ultraviolet irradiation is 0.5~2 hour.This hair
It is bright that peroxy-monosulfate and villaumite are put into treatment sewage, so that the chlorion in villaumite is generated with peroxy-monosulfate slow reaction
HClO reduces the generation of disinfection by-products alkyl halide and chlorinated organics, extends residence times of the HClO in disinfecting process,
To reach good Disinfection Effect, ultraviolet irradiation is subsequently used, remaining peroxy-monosulfate is activated, so that it is decomposed and generate sulfate radical
Free radical SO4-·With hydroxyl radical free radical OH, generated disinfection by-products in water body is further cut down, secondary dirt is alleviated
Dye.
Description of the drawings：
Fig. 1 is the installation drawing of staged wastewater disinfection method in the present invention；
1- chemical disinfections pond；2- ultraviolet disinfections pond；3- balling irons；4- vertical stirrers；5-UV light illuminators.
Specific implementation mode
The present invention provides a kind of staged wastewater disinfection methods, comprise the steps of：
Peroxy-monosulfate, villaumite and treatment sewage are mixed and carry out chemical disinfection, crosses a sulphur after the mixing in water body
A concentration of 0.01mmol/L~100mmol/L that hydrochlorate is calculated with element sulphur, chlorine ion concentration are 0.01mol/L~1mol/L；
Water body after chemical disinfection is subjected to ultraviolet irradiation, the radiation intensity of the ultraviolet irradiation is 1.0~100mW/
cm2。
Peroxy-monosulfate, villaumite and treatment sewage are mixed and carry out chemical disinfection by the present invention, after the mixing in water body
A concentration of 0.01mmol/L~100mmol/L that peroxy-monosulfate is calculated with element sulphur, chlorine ion concentration be 0.01mol/L~
1mol/L。
In the present invention, peroxy-monosulfate with the concentration that element sulphur calculates is preferably 1mmol/L in water body after the mixing
~4mmol/L, more preferably 2mmol/L~3mmol/L.
In the present invention, chlorine ion concentration is preferably 0.1mol/L~0.8mol/L in water body after the mixing, more preferably
For 0.4mol/L~0.5mol/L.
In the present invention, the villaumite is preferably NaCl and/or KCl.
In the present invention, the peroxy-monosulfate is preferably permonosulphuric acid potassium and/or permonosulphuric acid sodium, more preferably one
Sodium sulphate.
In the present invention, the type of the treatment sewage is preferably municipal sewage plant's secondary clarifier effluent, recycled water
It is discharged after factory's clarifying basin water outlet or waterworks precipitation filtering.
In the present invention, the COD value of the treatment sewage is preferably 5~300mg/L, more preferably 25~60mg/L；
BOD values are preferably 5~100mg/L, more preferably 5~15mg/L；TN is preferably 2~40mg/L, more preferably 9~18mg/L；
NH3- N is preferably 0.5~25mg/L, more preferably 2~6mg/L；TP is preferably 0.05~0.8mg/L, and TP is more preferably 0.2~
0.7mg/L。
The present invention does not have particular/special requirement to the source of sewage, selects the sewage for meeting above-mentioned condition.
The present invention is not particularly limited mixed method, selects mixed method known to the timely personnel in this field.
In the present invention, the time of the chemical disinfection is preferably 0.5~4h, more preferably 1~3h, and most preferably 1.5
~2.5h.
In the present invention, the chemical disinfection preferably carries out under stirring conditions, and the present invention does not have the rate of stirring
Particular/special requirement selects stir speed (S.S.) well known to those skilled in the art.
In the present invention, the key reaction equation of the chemical disinfection is Cl-+ HSO5-=SO4 2-+ HClO, the present invention to
Peroxy-monosulfate and villaumite are put into treatment sewage, and the chlorion in villaumite is made to be generated with peroxy-monosulfate slow reaction
HClO reduces the generation of disinfection by-products alkyl halide and chlorinated organics, extends the residence time of reaction tank, to reach good
Disinfection Effect.
Water body after chemical disinfection is carried out ultraviolet irradiation by the present invention, and the radiation intensity of the ultraviolet irradiation is 1.0~
100mW/cm2。
In the present invention, the radiation intensity of the ultraviolet irradiation is preferably 10~80mW/cm2, more preferably 30~60mW/
cm2。
In the present invention, the time of the ultraviolet irradiation is preferably 0.5~2 hour, more preferably 1~1.5h.
In the present invention, the absorbing wavelength of ultraviolet light is preferably 250~270nm in the ultraviolet irradiation.
In the present invention, the key reaction equation occurred in the ultraviolet irradiation water body is HSO5 -+ hv=SO4 -·+·OH。
The present invention uses ultraviolet irradiation, activates remaining peroxy-monosulfate, so that it is decomposed and generates potentiometric titrations SO4 -·
With hydroxyl radical free radical OH, generated disinfection by-products alkyl halide and chlorinated organics in water body are further cut down.
The present invention also provides a kind of devices for above-mentioned staged wastewater disinfection method, including the chemistry connected successively
Decontamination system and ultraviolet disinfection pond, the chemical sanitization system includes sterilization pool, the blender that is arranged in sterilization pool and use
UV illuminators are set above the balling iron offerd medicine to sterilization pool, the ultraviolet disinfection pond.
In the present invention, the light source of the UV illuminators is preferably low pressure mercury lamp.
The quantity arrangement mode of mercury lamp entertain guests family supplement
In the present invention, the UV illuminators are designed by group, and every fluorescent tube of medium pressure mercury lamp or low pressure mercury lamp is long
0.5m, fluorescent tube spacing are 0.2m, and the irradiation sewage quantity of every fluorescent tube is 0.16m3。
In the present invention, the fluorescent tube quantity n=flows Q × residence time t/0.16, in the present invention, the fluorescent tube exists
It arranges according to reaction tank Corridor Design uniform amount in pond.
In the present invention, the balling iron preferably includes peroxy-monosulfate balling iron and villaumite balling iron.
Treatment sewage is passed through in chemical disinfection pond by the present invention, is put into peroxy-monosulfate and villaumite by balling iron, is led to
It crosses blender to be stirred, reaction drug is made to be uniformly mixed with sewage, after reaching the corresponding residence time, by the dirt after chemical disinfection
Water leads to ultraviolet irradiation pond, carries out ultraviolet irradiation.
Fig. 1 is the installation drawing of staged wastewater disinfection method in the present invention；
1- chemical disinfections pond；2- ultraviolet disinfections pond；3- balling irons；4- vertical stirrers；5- ultraviolet disinfections pond.
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to the following examples.
Embodiment 1
In the present embodiment, the effect of the research present invention is carried out by contrast experiment, experiment water intaking is Beijing sewage plant A
Secondary clarifier effluent, the water factory carry out biological treatment by anaerobism, anoxic, aerobic activated sludge process, COD in secondary clarifier effluent
(30mg/L)、BOD(7mg/L)、TN(9mg/L)、NH3-N(3mg/L)、TP(0.4mg/L).The disinfection of its script design disappears for chlorine
Poison, the measurement for the by-product that carries out disinfection to sterilization pool water outlet, 18.0 μ g/L of chloroform, 3.8 μ g/L of dichloroacetic acid, trichloroacetic acid
6.1μg/L。
In the present embodiment, its secondary clarifier effluent is taken, and its backward inside puts into solid peroxy-monosulfate PMS and NaCl,
PMS concentration in solution is set to be calculated as 2mmol/L, Cl with element sulphur-A concentration of 200mmol/L, fully reaction 4 hours, then carry out
UV irradiates 1 hour, then measures the disinfection by-products in water after it is reacted：9.9 μ g/L of chloroform, 2.66 μ g/ of dichloroacetic acid
L, 3.96 μ g/L of trichloroacetic acid.
The water outlet of sewage plant sterilization pool is compared, disinfection by-products content is substantially reduced.And water outlet excrement colibacillus group is less than
103MPN/L reaches level-one emission standard A.
Embodiment 2
In the present embodiment, the effect of the research present invention is carried out by contrast experiment, experiment water intaking is Beijing sewage plant B
Secondary clarifier effluent, the water factory carry out sewage second-level processing by oxidation ditch, COD (47mg/L), BOD in secondary clarifier effluent
(8.6mg/L)、TN(14mg/L)、NH3-N(4.4mg/L)、TP(0.5mg/L).The disinfection of its script design is chlorination, is offseted
Malicious pond is discharged the measurement for the by-product that carries out disinfection, 19.6 μ g/L of chloroform, 4.1 μ g/L of dichloroacetic acid, 6.0 μ g/ of trichloroacetic acid
L。
In the present embodiment, its secondary clarifier effluent is taken, and its backward inside puts into solid peroxy-monosulfate PMS and NaCl,
PMS in solution is set to calculate a concentration of 3mmol/L, Cl with element sulphur-A concentration of 400mmol/L, fully reaction 4 hours, then carry out
UV irradiates 1 hour, then measures the disinfection by-products in water after it is reacted：11.1 μ g/L of chloroform, 3.46 μ g/ of dichloroacetic acid
L, 5.81 μ g/L of trichloroacetic acid, comparison sewage plant sterilization pool water outlet, disinfection by-products content are substantially reduced.And water outlet fecal coliform
A group of mean people is in 103MPN/L reaches level-one emission standard A.
Embodiment 3
In the present embodiment, the effect of the research present invention is carried out by contrast experiment, experiment water intaking is Beijing sewage plant C
Secondary clarifier effluent, the water factory carry out sewage second-level processing by traditional activated sludge process, COD (60mg/L) in secondary clarifier effluent,
BOD(13mg/L)、TN(17mg/L)、NH3-N(5.2mg/L)、TP(0.45mg/L).The disinfection of its script design is chlorination,
The measurement for the by-product that carries out disinfection, 30.1 μ g/L of chloroform, 4.9 μ g/L of dichloroacetic acid, trichloroacetic acid 6.3 are discharged to sterilization pool
μg/L。
In the present embodiment, its secondary clarifier effluent is taken, and its backward inside puts into solid peroxy-monosulfate PMS and NaCl,
PMS in solution is set to calculate a concentration of 5mmol/L, Cl with element sulphur-A concentration of 1000mmol/L, fully reaction 4 hours, then carry out
UV irradiates 1 hour, then measures the disinfection by-products in water after it is reacted：17.3 μ g/L of chloroform, 3.99 μ g/ of dichloroacetic acid
L, 5.56 μ g/L of trichloroacetic acid, comparison sewage plant sterilization pool water outlet, disinfection by-products content are substantially reduced.And water outlet fecal coliform
A group of mean people is in 103MPN/L reaches level-one emission standard A.
Claims (10)
1. a kind of staged wastewater disinfection method, which is characterized in that comprise the steps of：
Peroxy-monosulfate, villaumite and treatment sewage are mixed and carry out chemical disinfection, peroxy-monosulfate in water body after the mixing
With a concentration of 0.01mmol/L~100mmol/L that element sulphur calculates, chlorine ion concentration is 0.01mol/L~1mol/L；
Water body after the chemical disinfection is subjected to ultraviolet irradiation, the radiation intensity of the ultraviolet irradiation is 1.0~100mW/cm2。
2. sterilization method according to claim 1, which is characterized in that the villaumite is NaCl, KCl.
3. sterilization method according to claim 1, which is characterized in that the peroxy-monosulfate is permonosulphuric acid potassium and excessively one
Sodium sulphate.
4. according to the sterilization method described in claims 1 to 3 any one, which is characterized in that the time of the chemical disinfection is
0.5~4h.
5. sterilization method according to claim 1, which is characterized in that the absorbing wavelength of ultraviolet light is in the ultraviolet irradiation
250~270nm.
6. sterilization method according to claim 1, which is characterized in that the COD value of the treatment sewage is 5~300mg/
L, BOD value are 5~100mg/L, and TN is 2~40mg/L, NH3- N is 0.5~25mg/L, and TP is 0.05~0.8mg/L.
7. the device that a kind of staged wastewater disinfection method described in claim 1~6 any one uses, which is characterized in that
Including the chemical sanitization system being sequentially communicated and ultraviolet disinfection pond, the chemical sanitization system include sterilization pool, setting disappearing
UV illuminators are arranged in blender in malicious pond and the balling iron for offeing medicine to sterilization pool, the ultraviolet disinfection pond top.
8. device according to claim 7, which is characterized in that the light source of the UV illuminators is medium pressure mercury lamp or low-pressure mercury
Lamp.
9. device according to claim 7, which is characterized in that the UV illuminators by group design, medium pressure mercury lamp or
The long 0.5m of every fluorescent tube of low pressure mercury lamp, fluorescent tube spacing are 0.2m, and the irradiation sewage quantity of every fluorescent tube is 0.16m3。
10. device according to claim 9, which is characterized in that the fluorescent tube quantity n=flow Q* residence time t/
0.16。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516803.0A CN108558090A (en) | 2018-05-25 | 2018-05-25 | A kind of staged wastewater disinfection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810516803.0A CN108558090A (en) | 2018-05-25 | 2018-05-25 | A kind of staged wastewater disinfection method and device |
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| Publication Number | Publication Date |
|---|---|
| CN108558090A true CN108558090A (en) | 2018-09-21 |
Family
ID=63540112
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| CN201810516803.0A Pending CN108558090A (en) | 2018-05-25 | 2018-05-25 | A kind of staged wastewater disinfection method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921928A (en) * | 2019-10-24 | 2020-03-27 | 清华大学 | Method for treating coking wastewater concentrated solution by irradiation coupling peroxymonosulfate |
| CN114409054A (en) * | 2022-02-09 | 2022-04-29 | 北京林业大学 | Water treatment method for removing organic pollutants by activating persulfate and cooperatively controlling halogenated byproducts |
| CN115677017A (en) * | 2022-10-26 | 2023-02-03 | 中山大学 | Pretreatment method for reverse osmosis seawater desalination |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306432A (en) * | 1993-08-09 | 1994-04-26 | Great Lakes Biochemical Co., Inc. | Water purification |
| CN101708883A (en) * | 2009-12-18 | 2010-05-19 | 哈尔滨工业大学 | Light promoting dehalogenation compound medicament/light combined method for removing halogenated organic matters in water |
| CN102381740A (en) * | 2011-11-02 | 2012-03-21 | 哈尔滨工业大学 | Method for removing nitrogenous disinfection byproducts in water on basis of persulfate/light combination |
| CN104150562A (en) * | 2014-08-23 | 2014-11-19 | 哈尔滨工业大学 | Method for disinfecting filtered water from water plant with cooperation between medium-pressure ultraviolet catalyzing peroxymonosulfate and chloramine |
| CN105668880A (en) * | 2016-02-26 | 2016-06-15 | 同济大学 | Method for controlling chlorinated nitrogenous disinfection byproduct in water |
| CN106830281A (en) * | 2017-01-23 | 2017-06-13 | 哈尔滨工业大学 | The method for treating water of instability halogenated disinfection by-products during a kind of utilization persulfate in-situ control liquid chlorine/chloramines disinfection |
-
2018
- 2018-05-25 CN CN201810516803.0A patent/CN108558090A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306432A (en) * | 1993-08-09 | 1994-04-26 | Great Lakes Biochemical Co., Inc. | Water purification |
| CN101708883A (en) * | 2009-12-18 | 2010-05-19 | 哈尔滨工业大学 | Light promoting dehalogenation compound medicament/light combined method for removing halogenated organic matters in water |
| CN102381740A (en) * | 2011-11-02 | 2012-03-21 | 哈尔滨工业大学 | Method for removing nitrogenous disinfection byproducts in water on basis of persulfate/light combination |
| CN104150562A (en) * | 2014-08-23 | 2014-11-19 | 哈尔滨工业大学 | Method for disinfecting filtered water from water plant with cooperation between medium-pressure ultraviolet catalyzing peroxymonosulfate and chloramine |
| CN105668880A (en) * | 2016-02-26 | 2016-06-15 | 同济大学 | Method for controlling chlorinated nitrogenous disinfection byproduct in water |
| CN106830281A (en) * | 2017-01-23 | 2017-06-13 | 哈尔滨工业大学 | The method for treating water of instability halogenated disinfection by-products during a kind of utilization persulfate in-situ control liquid chlorine/chloramines disinfection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921928A (en) * | 2019-10-24 | 2020-03-27 | 清华大学 | Method for treating coking wastewater concentrated solution by irradiation coupling peroxymonosulfate |
| CN114409054A (en) * | 2022-02-09 | 2022-04-29 | 北京林业大学 | Water treatment method for removing organic pollutants by activating persulfate and cooperatively controlling halogenated byproducts |
| CN115677017A (en) * | 2022-10-26 | 2023-02-03 | 中山大学 | Pretreatment method for reverse osmosis seawater desalination |
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Application publication date: 20180921 |