CN109824167A - The treatment process of total organic carbon and organohalogen compounds in a kind of removal bio-chemical effluent - Google Patents
The treatment process of total organic carbon and organohalogen compounds in a kind of removal bio-chemical effluent Download PDFInfo
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- CN109824167A CN109824167A CN201910125076.XA CN201910125076A CN109824167A CN 109824167 A CN109824167 A CN 109824167A CN 201910125076 A CN201910125076 A CN 201910125076A CN 109824167 A CN109824167 A CN 109824167A
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Abstract
Present invention firstly provides the technical solutions of total organic carbon and organohalogen compounds in removal mesophytization water outlet.Therefore the invention belongs to environmentally protective production-process systems.Processing system that is a kind of while removing total organic carbon and organohalogen compounds in bio-chemical effluent, intake pump, fixed bed oxidation reaction tank, modification infusorial earth-ferrous sulfate filler, hydrogen peroxide grug feeding ja, dosing pump, elevator pump, modified activated carbon adsorption tower, modified activated carbon, draining pump.After this patent treatment process, bio-chemical effluent pH is between 6 ~ 8.5, and total organic carbon is between 3.5 ~ 13.2mg/L, and organohalogen compounds are between 0.1 ~ 0.4mg/L.
Description
Technical field
The invention belongs to water-treatment technology fields, and in particular to total organic carbon and organohalogen compounds in a kind of bio-chemical effluent
Process technology scheme.
Background technique
Industrial wastewater total organic carbon and organohalogen compounds after biochemical treatment are still very high, and untreated direct emission will
Endanger environment.Industrial wastewater mainly uses biochemical processing at present, but effluent quality after treatment is difficult to meet respectively
The requirement of the pollutant emission standard of a industry.Shanghai City " integrated wastewater discharge standard " (DB31/199-2018) requires always to have
Machine carbon is lower than 15 mg/L, and organohalogen compounds are lower than 0.5 mg/L.It is raw using process such as wet oxidation, nanofiltration, hyperfiltrationes
Water is dissolved, it is at high cost, it is complicated for operation, it is not suitable for large-scale industrial production.However up to the present, there are no remove life simultaneously
The processing method and technique for dissolving total organic carbon and organohalogen compounds in water, water quality indicator meets Shanghai City " sewage is comprehensive after processing
Close discharge standard " (DB31/199-2018).The object of the invention is to the water quality and quantity situations according to bio-chemical effluent, develop
Economic, efficient pollutant process technique, reduces carrying capacity of environment, and water quality indicator that treated meets Shanghai City discharge standard.
Summary of the invention
Present invention firstly provides the technical solutions of total organic carbon and organohalogen compounds in removal mesophytization water outlet.Therefore originally
Invention belongs to environmentally protective production-process systems.
To achieve the purpose of the present invention, The technical solution adopted by the invention is as follows:
Processing system that is a kind of while removing total organic carbon and organohalogen compounds in bio-chemical effluent, intake pump, fixed bed oxidation are anti-
Answer tank, modification infusorial earth-ferrous sulfate filler, hydrogen peroxide grug feeding ja, dosing pump, elevator pump, modified activated carbon adsorption tower, modification
Active carbon, draining pump.
The bio-chemical effluent is by the processed industrial wastewater of biochemistry pool.The bio-chemical effluent water quality characteristic: pH be 6 ~
9, total organic carbon is 21.8 ~ 67.9mg/L, and organohalogen compounds are 5.8 ~ 11.6mg/L.
The bio-chemical effluent squeezes into fixed bed oxidation reaction tank from bottom by intake pump, puts in fixed bed oxidation reaction tank
Modification infusorial earth-ferrous sulfate filler is set, modification infusorial earth-ferrous sulfate filler accounts for entire fixed bed oxidation reaction tank volume
85~95%.Bio-chemical effluent is 25 ~ 45 minutes in the residence time of fixed bed oxidation reaction tank, and entire packed tower backwashing time is
320 ~ 420 hours.Hydrogen peroxide in hydrogen peroxide grug feeding ja squeezes into fixed bed oxidation reaction tank, hydrogen peroxide and biochemistry by dosing pump
Water outlet is concurrent.The dosage of hydrogen peroxide is 30 ~ 60mg/L.
The modification infusorial earth-ferrous sulfate filler is prepared according to the water quality characteristic of bio-chemical effluent.Modification infusorial earth-
The technique of ferrous sulfate filler preparation is as follows: 1) diatomite screens: selection diatomite, partial size are 1.2 ~ 1.9mm, and heap density is
0.34 ~ 0.39g/mL, pore volume are 0.95 ~ 1.23ml/g, and specific surface area is 51.3 ~ 60.7m2/g.2) activation of diatomite: will
Diatomite be immersed in concentration be 2 ~ 5%(mass percent) sodium chloride solution in 1 ~ 2 hour, taking-up is dried, then by diatomite
It is 1 ~ 2%(mass percent that grain, which is placed on concentration) 1 ~ 2 hour in malonic acid solution, spontaneously dried after taking-up, diatomite after activation
Clitter density is 0.29 ~ 0.36g/mL, and pore volume is 1.12 ~ 1.42ml/g, and specific surface area is 55.4 ~ 65.2m2/g.3) inorganic
It is modified: the solution that polyaluminum sulfate ferric-aluminum chloride concentration (mass percent) is 6.9 ~ 12.3% is prepared, diatomite is pressed into solid-to-liquid ratio 1:
2 ~ 5 immerse in polyaluminum sulfate ferric-aluminum chloride solution, and the polyacrylic acid of 5 ~ 78mg/L is added in polyaluminum sulfate ferric-aluminum chloride solution
The zinc sulfate of amide, the calcium nitrate of 123 ~ 345mg/L and 65 ~ 145mg/L forms inorganic acid-diatomite mixed solution, will be inorganic
Acid-diatomite mixed solution is put into 60 ~ 65 DEG C of water bath with thermostatic control, is stirred 35 ~ 65 minutes with 125 ~ 175 revs/min of speed,
Subsequent natural cooling filters, and washs precipitating 3 ~ 5 times with clear water, then 1 ~ 2 hour in 105 DEG C of air dry ovens, is cooled into
Inorganic acid modification infusorial earth particle.4) by inorganic modified modification infusorial earth: ferrous sulfate: iron powder: manganese sulfate 3:6 in mass ratio ~
10:1:0.5 mixing, is stirred 20 minutes, forms modification infusorial earth-ferrous sulfate filler.It is raw after fixed bed oxidation reaction tank
The pH of water is dissolved between 6.2 ~ 8.1, total organic carbon is between 11.3 ~ 25.2mg/L, and organohalogen compounds are in 1.2 ~ 2.9mg/L.
Subsequent bio-chemical effluent enters modified activated carbon adsorption tower, stop of the bio-chemical effluent in modified activated carbon adsorption tower by elevator pump
Time is 25 ~ 35 minutes.Modified activated carbon accounts for the 75 ~ 85% of entire modified activated carbon adsorption tower volume, and the backwash time is 128 ~
166 hours.
Modified activated carbon of the invention is prepared according to the pollutant characteristic of bio-chemical effluent.(1) active carbon is coconut palm
Shell active carbon, partial size are 120 ~ 220 mesh, and iodine number is 790 ~ 890mg/L, 0.12 ~ 0.16cm3/g of micro pore volume.Use 0.1mol/L
Sodium chloride clean cocoanut active charcoal 2 ~ 3 times, then cleaned 3 ~ 5 times with tap water.(2) Mixture of Activated Carbon is pressed into solid-to-liquid ratio (matter
Amount ratio) 1:3 ~ 4 be put into concentration be 5.2 ~ 7.9mol/L Adlerika in, be then added 0.05 in every liter of Adlerika
~ 0.2 gram of superfine titanic oxide is small with the velocity fluctuation 2 of 75 ~ 90 turns/min then in 65 ~ 70 DEG C of constant-temperature shaking incubators
When, it then filters, cooling drying.By modified, cocoanut active charcoal iodine number is 960 ~ 1120mg/L, total micro pore volume 0.23 ~
0.29cm3/g substantially increases the ability of absorption total organic carbon and organohalogen compounds.
Biochemical waste water passes through draining pump qualified discharge after modified activated carbon adsorption tower.
After this patent treatment process, bio-chemical effluent pH between 6 ~ 8.5, total organic carbon 3.5 ~ 13.2mg/L it
Between, organohalogen compounds reach Shanghai City wastewater discharge standard between 0.1 ~ 0.4mg/L.
Beneficial effect
The invention proposes the technical solution for removing total organic carbon and organohalogen compounds in biochemical waste water simultaneously, this technical solution has
Effect solves the problems, such as that bio-chemical effluent pollutes environment.Therefore the invention belongs to environmentally protective production technologies, have good society
Benefit and environmental benefit.
Detailed description of the invention
Fig. 1 is that the present invention provides wastewater treatment system that is a kind of while removing total organic carbon and organohalogen compounds in biochemical waste water
System, including intake pump 1, fixed bed oxidation reaction tank 2, modification infusorial earth-ferrous sulfate filler 3, hydrogen peroxide grug feeding ja 4, dosing
Pump 5, elevator pump 6, modified activated carbon adsorption tower 7, modified activated carbon 8, draining pump 9.
Embodiment
For a better understanding of the present invention, it below with reference to the embodiment content that the present invention is furture elucidated, but invents interior
Appearance is not limited solely to the following examples.
Embodiment 1:
Processing system that is a kind of while removing total organic carbon and organohalogen compounds in bio-chemical effluent, intake pump, fixed bed oxidation are anti-
Answer tank, modification infusorial earth-ferrous sulfate filler, hydrogen peroxide grug feeding ja, dosing pump, elevator pump, modified activated carbon adsorption tower, modification
Active carbon, draining pump.
The bio-chemical effluent is by the processed industrial wastewater of biochemistry pool.The bio-chemical effluent water quality characteristic: pH is
7.9, total organic carbon 62.9mg/L, organohalogen compounds 10.8mg/L.
The bio-chemical effluent squeezes into fixed bed oxidation reaction tank from bottom by intake pump, puts in fixed bed oxidation reaction tank
Modification infusorial earth-ferrous sulfate filler is set, modification infusorial earth-ferrous sulfate filler accounts for entire fixed bed oxidation reaction tank volume
95%.Bio-chemical effluent is 45 minutes in the residence time of fixed bed oxidation reaction tank, and entire packed tower backwashing time is 420 small
When.Hydrogen peroxide in hydrogen peroxide grug feeding ja squeezes into fixed bed oxidation reaction tank by dosing pump, and hydrogen peroxide and bio-chemical effluent are same
Xiang Liu.The dosage of hydrogen peroxide is 55mg/L.
The modification infusorial earth-ferrous sulfate filler is prepared according to the water quality characteristic of bio-chemical effluent.Modification infusorial earth-
The technique of ferrous sulfate filler preparation is as follows: 1) diatomite screens: selection diatomite, partial size 1.9mm, and heap density is 0.37g/
ML, pore volume 0.99ml/g, specific surface area are 58.7 m2/g.2) activation of diatomite: it is 5% that diatomite, which is immersed in concentration,
2 hours in the sodium chloride solution of (mass percent), taking-up is dried, and it is 1%(mass hundred that diatom grogs, which is then placed on concentration,
Point ratio) 1 hour in malonic acid solution, spontaneously dried after taking-up, diatomite clitter density is 0.33g/mL after activation, and pore volume is
1.23ml/g, specific surface area 58.9m2/g.3) inorganic modified: preparing polyaluminum sulfate ferric-aluminum chloride concentration (mass percent) is
8.9% solution is immersed diatomite in polyaluminum sulfate ferric-aluminum chloride solution by solid-to-liquid ratio 1:4, molten in polyaluminum sulfate ferric-aluminum chloride
Polyacrylic acid amide, the calcium nitrate of 311mg/L and the zinc sulfate of 127mg/L of 61mg/L are added in liquid, forms inorganic acid-diatom
Inorganic acid-diatomite mixed solution is put into 65 DEG C of water bath with thermostatic control by native mixed solution, is stirred with 155 revs/min of speed
55 minutes, subsequent natural cooling filtered, and washed precipitating 5 times with clear water, cooling then 2 hours in 105 DEG C of air dry ovens
Form inorganic acid modification infusorial earth particle.4) by inorganic modified modification infusorial earth: ferrous sulfate: iron powder: manganese sulfate is in mass ratio
3:9:1:0.5 mixing, is stirred 20 minutes, forms modification infusorial earth-ferrous sulfate filler.
After fixed bed oxidation reaction tank, for the pH of bio-chemical effluent 7.1, total organic carbon is organic between 21.0mg/L
Halide is in 2.7mg/L.
Subsequent bio-chemical effluent enters modified activated carbon adsorption tower by elevator pump, and bio-chemical effluent is in modified activated carbon adsorption tower
In residence time be 35 minutes.Modified activated carbon accounts for the 85% of entire modified activated carbon adsorption tower volume, and the backwash time is 155
Hour.
Modified activated carbon of the invention is prepared according to the pollutant characteristic of bio-chemical effluent.(1) active carbon is coconut palm
Shell active carbon, partial size are 220 mesh, iodine number 820mg/L, micro pore volume 0.14cm3/g.Coconut palm is cleaned with the sodium chloride of 0.1mol/L
Shell active carbon 3 times, then cleaned 5 times with tap water.(2) Mixture of Activated Carbon is put into concentration by solid-to-liquid ratio (mass ratio) 1:3 is
In the Adlerika of 6.6mol/L, 0.1 gram of superfine titanic oxide is then added in every liter of Adlerika, then 70
It in DEG C constant-temperature shaking incubator, with velocity fluctuation 2 hours of 75 turns/min, then filters, cooling drying.By modified, coconut palm
Shell active carbon iodine number is 990mg/L, total micro pore volume 0.7cm3/g, substantially increases absorption total organic carbon and organohalogen compounds
Ability.
Biochemical waste water passes through draining pump qualified discharge after modified activated carbon adsorption tower.
After this patent treatment process, bio-chemical effluent pH is 6.9, and total organic carbon is between 11.7mg/L, organic halogen
Compound reaches Shanghai City wastewater discharge standard in 0.3mg/L.
Embodiment 2:
Processing system that is a kind of while removing total organic carbon and organohalogen compounds in bio-chemical effluent, intake pump, fixed bed oxidation are anti-
Answer tank, modification infusorial earth-ferrous sulfate filler, hydrogen peroxide grug feeding ja, dosing pump, elevator pump, modified activated carbon adsorption tower, modification
Active carbon, draining pump.
The bio-chemical effluent is by the processed industrial wastewater of biochemistry pool.The bio-chemical effluent water quality characteristic: pH is
8.7, total organic carbon 25.9mg/L, organohalogen compounds 8.9mg/L.
The bio-chemical effluent squeezes into fixed bed oxidation reaction tank from bottom by intake pump, puts in fixed bed oxidation reaction tank
Modification infusorial earth-ferrous sulfate filler is set, modification infusorial earth-ferrous sulfate filler accounts for entire fixed bed oxidation reaction tank volume
85%.Bio-chemical effluent is 25 ~ 45 minutes in the residence time of fixed bed oxidation reaction tank, and entire packed tower backwashing time is 350
Hour.Hydrogen peroxide in hydrogen peroxide grug feeding ja squeezes into fixed bed oxidation reaction tank by dosing pump, and hydrogen peroxide and bio-chemical effluent are
Concurrent.The dosage of hydrogen peroxide is 45 mg/L.
The modification infusorial earth-ferrous sulfate filler is prepared according to the water quality characteristic of bio-chemical effluent.Modification infusorial earth-
The technique of ferrous sulfate filler preparation is as follows: 1) diatomite screens: selection diatomite, partial size 1.5mm, and heap density is 0.35g/
ML, pore volume 0.96ml/g, specific surface area 52.9m2/g.2) activation of diatomite: it is 3% that diatomite, which is immersed in concentration,
1 hour in the sodium chloride solution of (mass percent), taking-up is dried, and it is 1.4%(mass that diatom grogs, which is then placed on concentration,
Percentage) 1.5 hours in malonic acid solution, spontaneously dried after taking-up, diatomite clitter density is 0.33g/mL, hole body after activation
Product is 1.23ml/g, and specific surface area is 56.7 m2/g.3) inorganic modified: to prepare polyaluminum sulfate ferric-aluminum chloride concentration (quality percentage
Than) be 9.9% solution, by diatomite by solid-to-liquid ratio 1:3 immerse polyaluminum sulfate ferric-aluminum chloride solution in, in polyaluminum sulfate chlorination
Polyacrylic acid amide, the calcium nitrate of 159mg/L and the zinc sulfate of 85mg/L of 13mg/L are added in iron aluminum solutions, is formed inorganic
Inorganic acid-diatomite mixed solution is put into 60 DEG C of water bath with thermostatic control, with 135 revs/min by acid-diatomite mixed solution
Speed stirs 40 minutes, subsequent natural cooling, filters, and wash and is precipitated 3 times with clear water, then 1 small in 105 DEG C of air dry ovens
When, it is cooled into inorganic acid modification infusorial earth particle.4) by inorganic modified modification infusorial earth: ferrous sulfate: iron powder: manganese sulfate is pressed
Mass ratio 3:7:1:0.5 mixing, is stirred 20 minutes, forms modification infusorial earth-ferrous sulfate filler.
After fixed bed oxidation reaction tank, for the pH of bio-chemical effluent 7.6, total organic carbon is organic between 15.8mg/L
Halide is in 1.6mg/L.
Subsequent bio-chemical effluent enters modified activated carbon adsorption tower by elevator pump, and bio-chemical effluent is in modified activated carbon adsorption tower
In residence time be 25 minutes.Modified activated carbon accounts for the 75% of entire modified activated carbon adsorption tower volume, and the backwash time is 138
Hour.
Modified activated carbon of the invention is prepared according to the pollutant characteristic of bio-chemical effluent.(1) active carbon is coconut palm
Shell active carbon, partial size are 180 mesh, iodine number 800mg/L, micro pore volume 0.17cm3/g.Coconut palm is cleaned with the sodium chloride of 0.1mol/L
Shell active carbon 2 times, then cleaned 3 times with tap water.(2) Mixture of Activated Carbon is put into concentration by solid-to-liquid ratio (mass ratio) 1:3 is
In the Adlerika of 5.8mol/L, 0.08 gram of superfine titanic oxide is then added in every liter of Adlerika, then exists
It in 68 DEG C of constant-temperature shaking incubators, with velocity fluctuation 2 hours of 80 turns/min, then filters, cooling drying.By modified,
Cocoanut active charcoal iodine number is 1020mg/L, total micro pore volume 0.28cm3/g, substantially increases absorption total organic carbon and organic halogenation
The ability of object.Biochemical waste water passes through draining pump qualified discharge after modified activated carbon adsorption tower.
After this patent treatment process, bio-chemical effluent pH is 7.4, and total organic carbon is between 9.2mg/L, organic halogenation
Object reaches Shanghai City wastewater discharge standard in 0.2mg/L.
In conclusion present invention firstly provides the technical sides for taking out total organic carbon and organohalogen compounds in bio-chemical effluent
Case, system solves the problems, such as that bio-chemical effluent pollutes environment, therefore the invention belongs to green production processes.
Certainly, those skilled in the art in the art are it should be appreciated that above-described embodiment is intended merely to illustrate this hair
It is bright, rather than it is used as limitation of the invention, as long as transformation, change in spirit of the invention, to above-described embodiment
Shape will all be fallen within the scope of the claims.
Claims (6)
1. a kind of processing system for removing total organic carbon and organohalogen compounds in bio-chemical effluent simultaneously, intake pump, fixed bed oxidation
Reactor tank, modification infusorial earth-ferrous sulfate filler, dosing pump, elevator pump, modified activated carbon adsorption tower, change hydrogen peroxide grug feeding ja
Property active carbon, draining pump.
2. the bio-chemical effluent is by the processed industrial wastewater of biochemistry pool；The bio-chemical effluent water quality characteristic: pH is 6 ~ 9,
Total organic carbon is 21.8 ~ 67.9mg/L, and organohalogen compounds are 5.8 ~ 11.6mg/L.
3. the bio-chemical effluent squeezes into fixed bed oxidation reaction tank from bottom by intake pump, placed in fixed bed oxidation reaction tank
Modification infusorial earth-ferrous sulfate filler, modification infusorial earth-ferrous sulfate filler account for the 85 of entire fixed bed oxidation reaction tank volume
~95%；Bio-chemical effluent is 25 ~ 45 minutes in the residence time of fixed bed oxidation reaction tank, and entire packed tower backwashing time is
320 ~ 420 hours；Hydrogen peroxide in hydrogen peroxide grug feeding ja squeezes into fixed bed oxidation reaction tank, hydrogen peroxide and biochemistry by dosing pump
Water outlet is concurrent；The dosage of hydrogen peroxide is 30 ~ 60mg/L.
4. the modification infusorial earth-ferrous sulfate filler is prepared according to the water quality characteristic of bio-chemical effluent: modification infusorial earth-sulphur
The technique of sour ferrous iron filler preparation is as follows: 1) diatomite screens: selection diatomite, partial size are 1.2 ~ 1.9 mm, and heap density is
0.34 ~ 0.39 g/mL, pore volume are 0.95 ~ 1.23 ml/g, and specific surface area is 51.3 ~ 60.7 m2/g；2) work of diatomite
Change: by diatomite be immersed in concentration be 2 ~ 5%(mass percent) sodium chloride solution in 1 ~ 2 hour, taking-up is dried, then will
It is 1 ~ 2%(mass percent that diatom grogs, which is placed on concentration) 1 ~ 2 hour in malonic acid solution, spontaneously dried after taking-up, after activation
Diatomite clitter density is 0.29 ~ 0.36 g/mL, and pore volume is 1.12 ~ 1.42 ml/g, and specific surface area is 55.4 ~ 65.2 m2/
g；3) inorganic modified: to prepare the solution that polyaluminum sulfate ferric-aluminum chloride concentration (mass percent) is 6.9 ~ 12.3%, diatomite is pressed
Solid-to-liquid ratio 1:2 ~ 5 immerses in polyaluminum sulfate ferric-aluminum chloride solution, is added 5 ~ 78 mg/L's in polyaluminum sulfate ferric-aluminum chloride solution
The zinc sulfate of polyacrylic acid amide, the calcium nitrate of 123 ~ 345 mg/L and 65 ~ 145 mg/L forms inorganic acid-diatomite mixing
Inorganic acid-diatomite mixed solution is put into 60 ~ 65 DEG C of water bath with thermostatic control, is stirred with 125 ~ 175 revs/min of speed by solution
It mixes 35 ~ 65 minutes, subsequent natural cooling, filters, precipitating is washed 3 ~ 5 times with clear water, then 1 ~ 2 in 105 DEG C of air dry ovens
Hour, it is cooled into inorganic acid modification infusorial earth particle；4) by inorganic modified modification infusorial earth: ferrous sulfate: iron powder: manganese sulfate
The mixing of 3:6 ~ 10:1:0.5 in mass ratio, is stirred 20 minutes, forms modification infusorial earth-ferrous sulfate filler；By fixed bed oxygen
After changing reactor tank, the pH of bio-chemical effluent is between 6.2 ~ 8.1, and between 11.3 ~ 25.2mg/L, organohalogen compounds exist total organic carbon
1.2~2.9mg/L；Subsequent bio-chemical effluent enters modified activated carbon adsorption tower by elevator pump, and bio-chemical effluent is inhaled in modified activated carbon
Residence time in attached tower is 25 ~ 35 minutes；Modified activated carbon accounts for the 75 ~ 85% of entire modified activated carbon adsorption tower volume, backwash
Time is 128 ~ 166 hours.
5. modified activated carbon of the invention is prepared according to the pollutant characteristic of bio-chemical effluent: (1) active carbon is coconut husk
Active carbon, partial size are 120 ~ 220 mesh, and iodine number is 790 ~ 890mg/L, 0.12 ~ 0.16cm3/g of micro pore volume；With 0.1mol/L's
Sodium chloride cleans cocoanut active charcoal 2 ~ 3 times, then is cleaned 3 ~ 5 times with tap water；(2) Mixture of Activated Carbon is pressed into solid-to-liquid ratio (quality
Than) 1:3 ~ 4 be put into concentration be 5.2 ~ 7.9mol/L Adlerika in, then in every liter of Adlerika be added 0.05 ~
0.2 gram of superfine titanic oxide is small with the velocity fluctuation 2 of 75 ~ 90 turns/min then in 65 ~ 70 DEG C of constant-temperature shaking incubators
When, it then filters, cooling drying；By modified, cocoanut active charcoal iodine number is 960 ~ 1120mg/L, total micro pore volume 0.23 ~
0.29cm3/g substantially increases the ability of absorption total organic carbon and organohalogen compounds；Biochemical waste water is adsorbed by modified activated carbon
Pass through draining pump qualified discharge after tower.
6. after this patent treatment process, bio-chemical effluent pH between 6 ~ 8.5, total organic carbon 3.5 ~ 13.2mg/L it
Between, organohalogen compounds reach Shanghai City wastewater discharge standard between 0.1 ~ 0.4mg/L.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275320A (en) * | 2020-10-26 | 2021-01-29 | 江苏三美化工有限公司 | Catalyst for catalytic oxidation of dichloromethane in wastewater and wastewater treatment process |
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|---|---|---|---|---|
| CN104150653A (en) * | 2014-08-28 | 2014-11-19 | 南京大学 | Advanced treatment method of VB12 wastewater biochemical treatment effluent |
| CN107010749A (en) * | 2016-01-27 | 2017-08-04 | 宝山钢铁股份有限公司 | A kind of device and multi-stage combination technique for removing total organic carbon in coking nanofiltration concentrated water |
| CN108314151A (en) * | 2017-01-17 | 2018-07-24 | 宝山钢铁股份有限公司 | The method and apparatus of total nitrogen and total organic carbon in a kind of removal rolling effluent |
-
2019
- 2019-02-20 CN CN201910125076.XA patent/CN109824167A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150653A (en) * | 2014-08-28 | 2014-11-19 | 南京大学 | Advanced treatment method of VB12 wastewater biochemical treatment effluent |
| CN107010749A (en) * | 2016-01-27 | 2017-08-04 | 宝山钢铁股份有限公司 | A kind of device and multi-stage combination technique for removing total organic carbon in coking nanofiltration concentrated water |
| CN108314151A (en) * | 2017-01-17 | 2018-07-24 | 宝山钢铁股份有限公司 | The method and apparatus of total nitrogen and total organic carbon in a kind of removal rolling effluent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112275320A (en) * | 2020-10-26 | 2021-01-29 | 江苏三美化工有限公司 | Catalyst for catalytic oxidation of dichloromethane in wastewater and wastewater treatment process |
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Application publication date: 20190531 |
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| RJ01 | Rejection of invention patent application after publication |