CN106865880A - The materialization of high concentration pyrosulfurous acid salt organic waste water-bio combined processing method - Google Patents
The materialization of high concentration pyrosulfurous acid salt organic waste water-bio combined processing method Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Environmental & Geological Engineering (AREA)
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
Abstract
The present invention discloses the materialization-bio combined processing method of high concentration pyrosulfurous acid salt organic waste water, and its method includes following six step：1) Fenton oxidation；2) quick lime is neutralized；3) sloping plate deposition；4) chemical flocculation；5) quartz sand filtration；6) the biological reinforced treatment of the engineering bacteria of resistance to pyrosulfite.The present invention can make full use of the faintly acid of the pyrosulfurous acid salt organic waste water, play Fenton reagent strong oxidation with this understanding, to have virose pyrosulfite and be oxidized to nontoxic sulfate, the larger molecular organicses in waste water can also be degraded into small molecule simultaneously, improve its biodegradability；And using the engineering bacteria of tolerance of salinity 50g/L tamed out as the strain of biological reinforced processing stage, the biological reinforced treatment of three-level is carried out continuously, and the microbiologic population for adapting to its environment is formed respectively, collaboration is efficiently completed the degraded of waste water, water outlet is reached comprehensively《Integrated wastewater discharge standard》Primary standard.
Description
Technical field
The present invention relates to field of waste water treatment, the specially materialization-life of high concentration pyrosulfurous acid salt organic waste water
Thing combination treatment method.
Background technology
At present, sodium pyrosulfite (Na2S2O5) as a kind of food additives, with bleaching, anti-corrosion, take off
Color and various functions such as anti-oxidant.In food-processing industry, in order to reach bleaching, sterilized, hyperchromic, fresh-keeping
Etc. purpose, artificially added by the mode such as fumigating, soaking, be directly added into.Especially in economic interests
Order about down, illegal retailer usually excessively adds pyrosulfite so that commodity have more preferable outward appearance and longer
Storage phase, but long-term consumption the exceeded food of sulphite can cause serious harm to health.Such
Food processing wastewater is not only containing the pyrosulfite of very high concentration, and the dissolubility of also a large amount of difficult degradations is organic
Thing.It is generally believed that waste water of the salinity more than 10g/L can produce influence to biological treatment system, due to useless
Excessive pyrosulfite produces obvious murder by poisoning, inhibitory action to microorganism in water, makes the treatment of such waste water
Difficulty is substantially increased, and the single equal difficulty of materialization or biochemical method reaches preferable effect.
Sodium pyrosulfite (Na2S2O5) treatment, it is general using oxidizing process is forced both at home and abroad at present, using wind
Sulfite oxidation, to air is blasted in wastewater trough, is sulfate by machine.But because the speed of the reaction is relatively low,
The air utilization ratio that is passed through is relatively low, a large amount of oxygen are wasted, and device efficiency is relatively low, and system is often with knot
Dirt and clogging, investment and operating cost are accordingly improved.Using multiple method Combined Treatments in the present invention
Pattern, first changes into nontoxic sulfate, Ran Houtong with Fenton oxidation method by substantial amounts of pyrosulfite
Physicochemical method is crossed to convert it into precipitation and then removed from waste water；Again by the adsorptive racks of flocculant
Bridge is acted on the suspension in waste water and the further flocculation sediment of partial organic substances；Finally, by with burnt sulfurous
The hydrochlorate activated sludge that alternatively pressure is progressively tamed carries out Biochemical method for strain, in salinity high
Still can be with efficient degradation organic matter under environment.
The content of the invention
Technical problem solved by the invention is to provide a kind of thing of high concentration pyrosulfurous acid salt organic waste water
Change-bio combined processing method, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention is realized using following technical scheme：High concentration pyrosulfite has
The materialization of machine waste water-bio combined processing method, its method and step is as follows；
1) Fenton oxidation：To added in high concentration pyrosulfurous acid salt organic waste water 30% hydrogen peroxide and
FeSO4·7H2O, n (H2O2)：n(Fe2+)=5.5:1, stir 2 hours, it is fully reacted；Reaction is complete
Afterwards, water sampling detects its CODCrAnd sulfite content；
2) quick lime is neutralized：Neutralization pond is flowed into through the waste water after Fenton oxidation, is added according to 1t waste water
The ratio of 10kg adds quick lime, and stirring makes it fully react；
3) sloping plate deposition：From inclined-plate clarifying basin is flow to, sloping plate deposition can greatly accelerate waste water after neutralization
CaSO4With superfluous quick lime sinking speed, the inorganic salt content in waste water is significantly reduced by bottom spoil disposal.
Take supernatant and detect its CODCrAnd sulfite content；
4) chemical flocculation：Supernatant, by automatic medicament feeding system, uses 5mol/L from flowing into flocculation sedimentation tank
Hydrochloric acid solution regulation pH to 8.0；Meanwhile, thrown in the ratio of 75mg/L-115mg/L by medicine system
Plus flocculant poly aluminium chloride ferrum (PAFC), it is slowly stirred, it is quiet heavy in settling zone after reaction completely；
5) quartz sand filtration：Flocculation sedimentation tank water outlet is further gone by the sand filtration in quartz filter again
Except sediment or floccule body, and take out water water sample and carry out CODCrAnd sulfite content detection；
6) the biological reinforced treatment of the engineering bacteria of resistance to pyrosulfite：Including the biological reinforced treatment of three-level, difference
It is simultaneous oxygen treatment, one-level catalytic oxidation and two-stage biological contact oxidation, the tolerance of salinity 50g/L for being gone out with Laboratory Acclimation
Engineering bacteria as biological reinforced processing stage strain, and difficult degradation in waste water has several by oxygen processing system
Macromolecular substances resolve into degradable small molecule, and one-level catalytic oxidation is responsible for the drop of high-concentration organic substance wastewater
Solution, two-stage biological contact oxidation is responsible for further degrading low-concentration organic waste water, three-level biological treatment system difference
The microbiologic population adapted under the environment is formed, collaboration is efficiently completed high concentration pyrosulfurous acid salt organic waste water
Degraded.
In the present invention, further, the step 3) in, inclined-plate clarifying basin can accelerate the sedimentation of sediment
Speed, and the content of inorganic salts in waste water is greatly eliminated by bottom spoil disposal.
In the present invention, further, the step 5) in the filtrate filled in quartz filter be three
Layer quartz sand filter media, from bottom to top particle diameter distribution be：The granular size of the quartz sand of bottom be 16-32mm it
Between, 1/5th of whole quartz filter height are accounted for, the granular size of the quartz sand in middle level is 4-8mm,
The granular size of the quartz sand on upper strata is 0.6-1.2mm, and the middle level and upper strata account for whole quartz sand filtration
2/5ths of device height.
In the present invention, further, the step 6) in, the culture of the engineering bacteria of resistance to pyrosulfite and tame and docile
Change method, before the waste water is processed, need to carry out the domestication of resistance to pyrosulfite performance to activated sludge；
In laboratory, the pyrosulfurous acid salt organic waste water of 500 times of dilution is taken, and add glucose and other microorganisms
Required inorganic salts are cultivated activated sludge, adapted to after microorganism and burnt Asia is stepped up after amount reproduction
The ratio of sulfate-containing organic wastewater, activated sludge is improved to pyrosulfite by long-term culture, domestication
Tolerance.
Beneficial effects of the present invention：
1st, the faintly acid of the pyrosulfurous acid salt organic waste water can be made full use of, Fenton reagent is played in acid
Property under the conditions of strong oxidation, will have virose pyrosulfurous acid is oxidized to nontoxic sulfate, while
Larger molecular organicses in pyrosulfurous acid salt organic waste water can also be degraded into small organic molecule, improve waste water
Biodegradability.(beneficial effect can not be write in claim.)
2nd, filled wherein using the quartz sand of different size, form small-sized three-layer filter pond, separation of solid and liquid effect
It is really good.
3rd, bacterium of the engineering bacteria of the tolerance of salinity 50g/L gone out using Laboratory Acclimation as biological reinforced processing stage
Kind, the biological reinforced treatment of three-level is carried out continuously, the microbiologic population for adapting to its environment is formed respectively, collaboration is high
The degraded of the completion pyrosulfurous acid salt organic waste water of effect, makes water outlet reach comprehensively《Integrated wastewater discharge standard》
(GB8978-96) primary standard.
Brief description of the drawings
Fig. 1 is the detailed process of high concentration pyrosulfurous acid salt organic waste water materialization-bio combined processing method
Figure.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand,
The present invention is expanded on further below in conjunction with the accompanying drawings.
Implementation method：As shown in figure 1, the materialization of high concentration pyrosulfurous acid salt organic waste water-bio combined place
Reason method, its method and step is as follows；
1) Fenton oxidation：To added in high concentration pyrosulfurous acid salt organic waste water 30% hydrogen peroxide and
FeSO4·7H2O, n (H2O2)：n(Fe2+)=5.5:1, stir 2 hours, it is fully reacted；Reaction is complete
Afterwards, water sampling detects its CODCrAnd sulfite content；
2) quick lime is neutralized：Neutralization pond is flowed into through the waste water after Fenton oxidation, is added according to 1t waste water
The ratio of 10kg adds quick lime, and stirring makes it fully react；
3) sloping plate deposition：From inclined-plate clarifying basin is flow to, sloping plate deposition can greatly accelerate waste water after neutralization
CaSO4With superfluous quick lime sinking speed, the inorganic salt content in waste water is significantly reduced by bottom spoil disposal.
Take supernatant and detect its CODCrAnd sulfite content；
4) chemical flocculation：Supernatant, by automatic medicament feeding system, uses 5mol/L from flowing into flocculation sedimentation tank
Hydrochloric acid solution regulation pH to 8.0；Meanwhile, thrown in the ratio of 75mg/L-115mg/L by medicine system
Plus flocculant poly aluminium chloride ferrum (PAFC), it is slowly stirred, it is quiet heavy in settling zone after reaction completely；
5) quartz sand filtration：Flocculation sedimentation tank water outlet is further gone by the sand filtration in quartz filter again
Except sediment or floccule body, and take out water water sample and carry out CODCrAnd sulfite content detection；
6) the biological reinforced treatment of the engineering bacteria of resistance to pyrosulfite：Including the biological reinforced treatment of three-level, difference
It is simultaneous oxygen treatment, one-level catalytic oxidation and two-stage biological contact oxidation, the tolerance of salinity 50g/L for being gone out with Laboratory Acclimation
Engineering bacteria as biological reinforced processing stage strain, and difficult degradation in waste water has several by oxygen processing system
Macromolecular substances resolve into degradable small molecule, and one-level catalytic oxidation is responsible for the drop of high-concentration organic substance wastewater
Solution, two-stage biological contact oxidation is responsible for further degrading low-concentration organic waste water, three-level biological treatment system difference
The microbiologic population adapted under the environment is formed, collaboration is efficiently completed high concentration pyrosulfurous acid salt organic waste water
Degraded.
The step 3) in, inclined-plate clarifying basin can accelerate the rate of settling of sediment, and by bottom spoil disposal
Greatly eliminate the content of inorganic salts in waste water.The step 5) in filled in quartz filter
Filtrate is three layers of quartz sand filter media, and particle diameter distribution is from bottom to top：The granular size of the quartz sand of bottom is
Between 16-32mm, 1/5th of whole quartz filter height are accounted for, the particle of the quartz sand in middle level is big
Small is 4-8mm, and the granular size of the quartz sand on upper strata is 0.6-1.2mm, and the middle level and upper strata account for whole
2/5ths of individual quartz filter height.The step 6) in, the training of the engineering bacteria of resistance to pyrosulfite
Support and acclimation method, before the waste water is processed, resistance to pyrosulfite performance need to be carried out to activated sludge and is tamed and dociled
Change；In the lab, take 500 times of pyrosulfurous acid salt organic waste water of dilution, and add glucose and other
Inorganic salts are cultivated activated sludge necessary to microorganism, are adapted to after microorganism and are progressively carried after amount reproduction
The ratio of pyrosulfurous acid salt organic waste water high, activated sludge focusing sulfurous is improved by long-term culture, domestication
The tolerance of hydrochlorate.And oxygen processing system by waste water difficult degradation to have several macromolecular substances to resolve into degradable
Small molecule, control dissolved oxygen (DO)≤0.5mg/L, hydraulic detention time (HRT) 18 hours；One-level connects
The degraded that high-concentration organic substance wastewater is responsible in oxidation is touched, control dissolved oxygen (DO) is in 2-4mg/L, hydraulic retention
24 hours time (HRT)；Two-stage biological contact oxidation is responsible for further degrading low-concentration organic waste water, controls molten
Solution oxygen (DO) was in 2-4mg/L, hydraulic detention time (HRT) 24 hours.Three-level biological treatment system is cooperateed with
The degraded of high concentration pyrosulfurous acid salt organic waste water is efficiently completed, water outlet is reached comprehensively《Integrated wastewater is arranged
Put standard》(GB8978-96) primary standard.
General principle of the invention and principal character and advantages of the present invention, the industry has been shown and described above
Technical staff it should be appreciated that the present invention is not limited to the above embodiments, in above-described embodiment and specification
Merely illustrating the principles of the invention for description, it is without departing from the spirit and scope of the present invention, of the invention
Various changes and modifications are also had, these changes and improvements all fall within the protetion scope of the claimed invention, this
The claimed scope of invention is by appending claims and its equivalent.
Claims (4)
1. the materialization of high concentration pyrosulfurous acid salt organic waste water-bio combined processing method, it is characterized in that：Its
Method and step is as follows；
1) Fenton oxidation：To added in high concentration pyrosulfurous acid salt organic waste water 30% hydrogen peroxide and
FeSO4·7H2O, n (H2O2)：n(Fe2+)=5.5:1, stir 2 hours, it is fully reacted；Reaction is complete
Afterwards, water sampling detects its CODCrAnd sulfite content；
2) quick lime is neutralized：Neutralization pond is flowed into through the waste water after Fenton oxidation, is added according to 1t waste water
The ratio of 10kg adds quick lime, and stirring makes it fully react；
3) sloping plate deposition：From inclined-plate clarifying basin is flow to, sloping plate deposition can greatly accelerate waste water after neutralization
CaSO4With superfluous quick lime sinking speed, the inorganic salt content in waste water is significantly reduced by bottom spoil disposal.
Take supernatant and detect its CODCrAnd sulfite content；
4) chemical flocculation：Supernatant, by automatic medicament feeding system, uses 5mol/L from flowing into flocculation sedimentation tank
Hydrochloric acid solution regulation pH to 8.0；Meanwhile, thrown in the ratio of 75mg/L-115mg/L by medicine system
Plus flocculant poly aluminium chloride ferrum (PAFC), it is slowly stirred, it is quiet heavy in settling zone after reaction completely；
5) quartz sand filtration：Flocculation sedimentation tank water outlet is further gone by the sand filtration in quartz filter again
Except sediment or floccule body, and take out water water sample and carry out CODCrAnd sulfite content detection；
6) the biological reinforced treatment of the engineering bacteria of resistance to pyrosulfite：Including the biological reinforced treatment of three-level, difference
It is simultaneous oxygen treatment, one-level catalytic oxidation and two-stage biological contact oxidation, the tolerance of salinity 50g/L for being gone out with Laboratory Acclimation
Engineering bacteria as biological reinforced processing stage strain, and difficult degradation in waste water has several by oxygen processing system
Macromolecular substances resolve into degradable small molecule, and one-level catalytic oxidation is responsible for the drop of high-concentration organic substance wastewater
Solution, two-stage biological contact oxidation is responsible for further degrading low-concentration organic waste water, three-level biological treatment system difference
The microbiologic population adapted under the environment is formed, collaboration is efficiently completed high concentration pyrosulfurous acid salt organic waste water
Degraded.
2. the processing method of high concentration pyrosulfurous acid salt organic waste water according to claim 1, it is special
Levying is：The step 3) in, inclined-plate clarifying basin can accelerate the rate of settling of sediment, and be arranged by bottom
Mud greatly eliminates the content of inorganic salts in waste water.
3. the processing method of the waste water of pyrosulfite containing high concentration according to claim 1, it is characterized in that：
The step 5) in the filtrate filled in quartz filter be three layers of quartz sand filter media, grain from bottom to top
Footpath is distributed as：The granular size of the quartz sand of bottom be 16-32mm between, account for whole quartz filter high
/ 5th of degree, the granular size of the quartz sand in middle level is 4-8mm, the granular size of the quartz sand on upper strata
It is 0.6-1.2mm, the middle level and upper strata account for 2/5ths of whole quartz filter height.
4. the processing method of high concentration pyrosulfurous acid salt organic waste water according to claim 1, it is special
Levying is：The step 6) in, the culture of the engineering bacteria of resistance to pyrosulfite and acclimation method give up this is processed
Before water, the domestication of resistance to pyrosulfite performance need to be carried out to activated sludge；In the lab, dilution 500 is taken
Times pyrosulfurous acid salt organic waste water, and necessary to add glucose and other microorganisms inorganic salts to active dirty
Mud is cultivated, and is adapted to after microorganism and the ratio of pyrosulfurous acid salt organic waste water is stepped up after amount reproduction
Example, tolerance of the activated sludge to pyrosulfite is improved by long-term culture, domestication.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115669434A (en) * | 2021-07-21 | 2023-02-03 | 南开大学 | Method for cooperatively treating Chinese chive maggots by low oxygen stress and entomopathogenic nematodes |
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| JP5359685B2 (en) * | 2009-08-25 | 2013-12-04 | 富士ゼロックス株式会社 | Water treatment apparatus and water treatment method used in toner manufacturing process |
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| CN115669434A (en) * | 2021-07-21 | 2023-02-03 | 南开大学 | Method for cooperatively treating Chinese chive maggots by low oxygen stress and entomopathogenic nematodes |
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Application publication date: 20170620 |