CN107285569A - A kind of polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby processing method - Google Patents

A kind of polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby processing method Download PDF

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Publication number
CN107285569A
CN107285569A CN201710607510.9A CN201710607510A CN107285569A CN 107285569 A CN107285569 A CN 107285569A CN 201710607510 A CN201710607510 A CN 201710607510A CN 107285569 A CN107285569 A CN 107285569A
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polyvinyl chloride
difficult degradation
auxiliary agent
organic wastewater
water outlet
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张建鹏
李云峰
孙严
虞素飞
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SHANGHAI WINNER ENVIRONMENTAL TECHNOLOGIES Co Ltd
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SHANGHAI WINNER ENVIRONMENTAL TECHNOLOGIES Co Ltd
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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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • 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
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • 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
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/38—Polymers
    • 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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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

High saliferous organic wastewater with difficult degradation thereby processing method is produced the invention discloses a kind of polyvinyl chloride auxiliary agent.The present invention is handled the oil slick in waste water, suspension by 1) oil removal coagulation pretreatment；2) preprocessed waste water carries out analysis salt treatment, adjusts waste water salt content；3) the entrance iron-carbon micro-electrolysis after being nursed one's health through salinity carries out catalytic oxidation treatment, improves wastewater biodegradability；4) oxidation-treated high-salt wastewater enters high-efficiency multi-section type biochemical treatment system, standard water discharge discharge.High saliferous organic wastewater with difficult degradation thereby is realized based on pretreatment, the adjustment of waste water salinity, microelectrolysis processing, multisection type biochemical treatment, qualified discharge is realized.

Description

A kind of polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby processing method
Technical field
High saliferous is produced the present embodiments relate to work production wastewater treatment field, more particularly to a kind of polyvinyl chloride auxiliary agent Organic wastewater with difficult degradation thereby processing method.
Background technology
Polyvinyl chloride, English abbreviation PVC (Polyvinyl chloride) is VCM (vinyl chloride Monomer, abbreviation VCM) in initiators such as peroxide, azo-compounds；Or Raolical polymerizable is pressed under light, heat effect The polymer that mechanism is polymerized.In construction material, industrial product, commodity, flooring laminate, floor tile, artificial leather, tubing, electricity It is widely used in terms of line cable, packaging film, bottle, expanded material, encapsulant, fiber.
PVC auxiliary agents include initiator, polymerization inhibitor, anti-acidblocking agent, defoamer.Initiator includes EHP, CNP, TND.Produced Journey is related to main raw and auxiliary material sodium hydroxide, potassium hydroxide, hydrogen peroxide, chloro ester, methanol, ethanol etc..Related auxiliaries are produced During can produce substantial amounts of industrial wastewater, with complicated component and big with market fluctuation, CODCrConcentration is high, salt content height (18- 20%), toxicity is big, the features such as biodegradability is poor, belongs to one of intractable Fine Chemistry Wastewater of high salinity.
At present, the high COD of high salt being related to both at home and abroad to fine chemistry industryCrOrganic wastewater with difficult degradation thereby processing is also without ripe work Skill, the basic simple combination using general process scheme, such as chemical oxidation, Physical, biochemical processing process.And contain for height Salt waste water obtains solid waste and condensation production water, the route such as handles in progress, there is investment using pretreating process section evaporation process Cost is high, and operating cost is big, and treatment effect it is undesirable the problem of.In addition, microbiological treatment technology includes salinity domestication, dilution It is limited to there is salt resistance ability in the techniques such as biochemical, inoculation Halophiles reinforcing biochemistry, and stable operation effect it is undesirable the problems such as.Especially It is to be directed to specific waste water, such as the wastewater treatment of PVC auxiliary agents production, is extremely difficult to environment protection emission requirement, is at domestic waste water One of reason field urgent need to solve the problem.
Chinese utility model patent (CN204803181U) discloses a kind of high-salt wastewater biochemical treatment apparatus, the system bag Include CODCrThe devices such as reactor, ammonia nitrogen reactor, denitrification device, clarifier, using salt-durable microbe, ammonia nitrogen removal microorganism etc. enters Row processing, it is adaptable to total dissolving salinity ＞ 10% high-salt wastewater.The technology utilization peculiar microorganism adds processing high salt Waste water, but particular procedure is not carried out to the organic matter of difficult degradation, organic pollution treatment effect needs to be investigated.And various spies Very bacterium is expensive, and operating cost is higher.
Chinese invention patent (CN106186537A) discloses a kind of new work of evaporative crystallization of high salt high concentrated organic wastewater Skill.For high salt and high organic wastewater, after simple pretreatment, the process route directly evaporated is handled, although work Skill flow is simple, but the fixed investment cost of vaporising device is high, and later stage operating cost height limits the application of the technology.
Chinese invention patent (CN105084558A) discloses a kind of method that utilization halophile handles high-salt wastewater, Halophile flora is mainly added in biochemical system, is mixed under 1-25% salinity, obtains mud-water separation Performance and the good halophile aggregation of settling property, enter but wastewater treatment qualified discharge.But for the micro- life of suitable salt The domestication difficulty of thing thalline is larger, and the domestication time cycle is very long, there is fluctuation of service in engineering, and bacterium rareness loss etc. is asked Topic, it is difficult to carry out engineering utilization.
In summary, the high COD of high salt that fine chemistry industry is related toCrOrganic wastewater with difficult degradation thereby processing is thrown still to there is efficiency low Provide cost high, the problems such as outlet effect is undesirable.Therefore, develop and be adapted under high salt time-sharing environment, microbiological treatment engineering application Technology has great importance.
The content of the invention
The present invention provides a kind of polyvinyl chloride auxiliary agent and produces high saliferous organic wastewater with difficult degradation thereby processing method, for existing poly- The high COD of vinyl chloride auxiliary agent production high saltCrThe deficiency of waste water treatment process, high saliferous of the R ＆ D design by core of microbial technique The handling process of organic wastewater with difficult degradation thereby, realizes qualified discharge, to replace traditional handicraft.This method is specifically included：
(1) high saliferous difficult degradation helps agent production waste water through going oil removal processing and coagulating treatment, the oil slick that goes in water removal and outstanding Float, obtains water outlet；
(2) by salt content of the water outlet in step (1) through being catalyzed in salting-out process, reduction waste water, salinity adjustment is carried out, is obtained To the high salt water outlet of salinity appropriateness；
(3) high salt water outlet in step (2) is handled into micro-electrolysis reaction device, obtains water outlet；
(4) water outlet in step (3) is entered into multisection type biochemical treatment system and carries out biochemical treatment, obtain water outlet；
(5) bio-chemical effluent in step (4) is handled through outer immersion MBR membrane cisternas, obtains water outlet, water outlet meets qualified discharge It is required that；
(6) step (3), (4), the sludge that (5) are produced enters press filteration system, produces the outer processing of mud cake committee, and filtrate cycle is entered Enter regulating reservoir.
Optionally, the high salinity that the polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby is 10-18%, difficult Degradation of organic waste water refers to its biodegradability BOD5/CODCrValue ＜ 0.1.
Optionally, oil removal processing is gone to use scraper-type oil water separator, obtained W/O content ＜ in the step (1) 0.5%.
Optionally, the catalytic type medicament that catalysis is applied during saltouing in the step (2) for sulfuric acid or sodium hydroxide or Salt content after the mixture of the two, and salinity adjustment is controlled in 1-4%.
Optionally, high salt water outlet in step (2) is entered into micro-electrolysis reaction device in the step (3) to carry out being processed as adopting The redox reaction produced with the galvanic cell of iron C catalyst, the phenyl ring class peroxidating that polyvinyl chloride is helped in agent production waste water Thing, the esters chain molecule of 4-8 carbon, the organic pollutant molecule chain destruction such as the ring class organic solvent such as hexamethylene forms small point The organic matter of son, by wastewater biodegradability BOD5/CODCrRatio is improved to 0.3-0.4 from 0.1.
Optionally, in the step (4) multisection type biochemical treatment system use multi-compartment Pool body design, be 4 compartments or 8 every Room or 12 compartments, using the fiber of high-specific surface area as filler, packing specific area is in 2000-4000m2/m3。
Optionally, multisection type biochemical treatment system uses dirty in multisection type biochemical processing, pond body in the step (4) Mud concentration can be improved to 15-20g/L.
Optionally, multisection type biochemical treatment system is continuously designed using water channel type in the step (4), forms multi-compartment Anaerobism-and oxygen-Aerobic Process for Treatment workshop section, gradient type filters out salt tolerant bacterial population and hardly degraded organic substance processing special bacteria, The scope of high content of salt is resistant in 1-4%.
Optionally, multisection type biochemical treatment system includes going out in Facultative Halophiles compartment, the step (3) in the step (4) Processing of the water through Facultative Halophiles compartment, bio-chemical effluent salt content ＜ 1%.
The present invention is handled the oil slick in waste water, suspension by 1) oil removal coagulation pretreatment；2) it is preprocessed useless Water carries out analysis salt treatment, adjusts waste water salt content；3) the entrance iron-carbon micro-electrolysis after being nursed one's health through salinity is carried out at catalysis oxidation Reason, improves wastewater biodegradability；4) oxidation-treated high-salt wastewater enters high-efficiency multi-section type biochemical treatment system, standard water discharge Discharge.Realize that vinyl chloride auxiliary agent production height contains based on pretreatment, the adjustment of waste water salinity, microelectrolysis processing, multisection type biochemical treatment Salt organic wastewater with difficult degradation thereby, realizes qualified discharge.
Brief description of the drawings
Fig. 1 is that a kind of polyvinyl chloride auxiliary agent provided in an embodiment of the present invention produces high saliferous organic wastewater with difficult degradation thereby processing side The process route chart of method.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Embodiment one
Polyvinyl chloride auxiliary agent produces high-salt wastewater and handled through oil removal and flocculating setting, and the oil slick clearance in waste water reaches 99.5%, removal efficiency reaches 90%；
Water outlet after oil removal and flocculating setting enters salinity and nurses one's health process, using the regulation of acid or alkali, and reduction salt exists The regulation and control of waste water salinity are realized in solubility in waste water, controllable precipitation, and the waste water salt content after processing, can from 10-18% It is down to 1-5%.；
Appropriate salt content waste water enters light electrolysis catalysis system, is catalyzed using iron filings or iron carbon condiment or nano iron-carbon Agent is controlled in 1-5, reaction time 1-10h as catalysis material, waste water reaction pH.Waste water CODCrClearance gives up up to 40% Water biodegradability is improved, and B/C values can be improved to 0.3-0.4 from 0.1.
Water outlet after microelectrolysis processing enters multisection type MSFBP processing systems and carries out biochemical treatment, and the system is compared using high The fiber of surface area is filler, is designed using multi-compartment aquaporin, forms continuous stream, and by each compartment dissolved oxygen concentration, Form anaerobism and oxygen and Aerobic Process for Treatment workshop section.Described fiber high-specific surface area is 1000-5000m2/m3, the process sludge is dense Spend for 15-20g/L, and with water (flow) direction, the bacterial micro-organism being attached in fiberfill is voluntarily screened, and forms difference in functionality The population bacterium colony in area and the formation for accelerating salt tolerant bacterial community.
The water outlet of multisection type MSFBP biochemical treatment process Aerobic Ponds enters immersion MBR system, to substitute traditional second pond, Suspension and bacterial micro-organism are efficiently separated, standard water discharge is realized.
The sludge that each technique unit is produced enters press filteration system, produces the outer processing of mud cake committee, and filtrate cycle enters regulation Reprocessed in pond.
The present invention compared with prior art, has the advantages that：
Present invention pretreatment is saltoutd using acid-base catalysis, can effectively be nursed one's health the salt content of waste water, is reduced to it suitable Spend salt content environment, it is ensured that the stable operation of follow-up high-salt wastewater biochemical treatment system；
The processing method that the present invention is provided is for the persistent organic pollutants in auxiliary agent production, using light electrolysis electrochemistry Process is pre-processed, and destroys organic molecule chain, is removing CODCrWhile wastewater biodegradability B/C values can be carried from 0.1 Up to 0.3-0.4；
The present invention using high-specific surface area fiber as filler, with reference to aquaporin design, formed multisection type biochemical treatment every Room, sludge concentration is improved to 15-20g/L, can quickly form function bacterium kind group, and required salt tolerant bacterium, reinforcing life Change treatment effect.
Optionally, the high salinity that polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby is 10-18%, difficult degradation Organic wastewater refers to its biodegradability BOD5/CODCrValue ＜ 0.1.
Optionally, oil removal processing is gone to use scraper-type oil water separator, obtained W/O content ＜ in step (1) 0.5%.
Optionally, the catalytic type medicament that catalysis is applied during saltouing in step (2) for sulfuric acid or sodium hydroxide or the two Mixture, and salinity adjustment after salt content control in 1-4%.
Optionally, high salt water outlet in step (2) is entered into micro-electrolysis reaction device in step (3) to carry out being processed as using iron The redox reaction that the galvanic cell of C catalyst is produced, the phenyl ring class peroxide that polyvinyl chloride is helped in agent production waste water, The esters chain molecule of 4-8 carbon, the organic pollutant molecule chain destruction such as the ring class organic solvent such as hexamethylene, forms small molecule Organic matter, by wastewater biodegradability BOD5/CODCrRatio is improved to 0.3-0.4 from 0.1.
Optionally, in step (4) multisection type biochemical treatment system use multi-compartment Pool body design, be 4 compartments or 8 compartments or 12 compartments, using the fiber of high-specific surface area as filler, packing specific area is in 2000-4000m2/m3。
Optionally, multisection type biochemical treatment system uses sludge in multisection type biochemical processing, pond body dense in step (4) Degree can be improved to 15-20g/L.
Optionally, multisection type biochemical treatment system is continuously designed using water channel type in step (4), forms detesting for multi-compartment Oxygen-and oxygen-Aerobic Process for Treatment workshop section, gradient type filter out salt tolerant bacterial population and hardly degraded organic substance processing special bacteria, tolerance The scope of high content of salt is in 1-4%.
Optionally, multisection type biochemical treatment system includes Facultative Halophiles compartment in step (4), and water outlet is through salt tolerant in step (3) The processing of bacterium compartment, bio-chemical effluent salt content ＜ 1%.
Optionally, second pond is substituted using immersion MBR in step (5), sludge and water outlet is efficiently separated using membrane filtration, And combine the processing of fast filter chamber, water outlet CODCr＜ 100mg/L.
Exemplary, table 1 is that PVC auxiliary agent Bs 355 provided in an embodiment of the present invention produce waste water quality.
Table 1
Project name Pollutant concentration Project name Pollutant concentration
PH value 13.3 Electrical conductivity (ms/cm) 6220
Hardness (mg/L) 60 Salinity (mg/L) 164360
CODCr(mg/L) 28030 BOD5/CODCr 0.1
Wherein, B355 produces waste water and handled through oil removal and flocculating setting, and the oil slick clearance in waste water suspends up to 99.5% Thing clearance reaches 90%, CODCrIt is down to 15800mg/L；
Water outlet after oil removal and flocculating setting enters salinity and nurses one's health process, is adjusted using acid, as salt is analyzed, Waste water salt content after processing can be down to 4%, CODCrFor 15400mg/L.
Appropriate salt content waste water enters light electrolysis catalysis system, uses iron filings for catalysis material, filler：Water filling proportion 1: 2, waste water reaction pH are controlled in 3.5, reaction time 10h.Waste water CODCrClearance is up to 30%, CODCrIt is reduced to 10780mg/L. And wastewater biodegradability is improved, B/C values can be improved to 0.35 from 0.1.
Water outlet after microelectrolysis processing enters the compartment MSFBP processing systems of multisection type 8 and carries out biochemical treatment, and the system is used High-specific surface area (5000m2/m3) fiber be filler, 1, No. 2 compartment is anaerobism, and 3, No. 4 compartments are and oxygen that 5-8 compartments are Aerobic, wherein oxygen compatibility pool Dissolved Oxygen concentration Control is in 0.5mg/L, and Aerobic Pond Dissolved Oxygen concentration Control is in 5mg/L, sludge concentration control System is 15%.Water outlet CODCrRemoval efficiency is up to 98%, CODCrFor 215.6mg/L, salt content is 1.1%.
The water outlet of multisection type MSFBP biochemical treatment process Aerobic Ponds enters immersion MBR system and fast filter chamber further enters Row processing, water outlet CODCrFor 95mg/L, salt content is 0.9%.
Exemplary, table 2 is that PVC auxiliary agents TND provided in an embodiment of the present invention produces waste water quality.
Table 2
Project name Pollutant concentration Project name Pollutant concentration
PH value 11 Electrical conductivity (ms/cm) 7200
Hardness (mg/L) 45 Salinity (mg/L) 204360
CODCr(mg/L) 31030 BOD5/CODCr 0.1
Wherein, TND produces waste water and handled through oil removal and flocculating setting, and the oil slick clearance in waste water suspends up to 99.5% Thing clearance reaches 90%, CODCrIt is down to 17800mg/L；
Water outlet after oil removal and flocculating setting enters salinity and nurses one's health process, is adjusted using acid, as salt is analyzed, Waste water salt content after processing can be down to 4.5%, CODCrFor 15800mg/L
Appropriate salt content waste water enters light electrolysis catalysis system, uses iron filings for catalysis material, filler：Water filling proportion 1: 1.5, waste water reaction pH are controlled in 3.5, reaction time 10h.Waste water CODCrClearance is up to 40%, CODCrIt is reduced to 9480mg/L. And wastewater biodegradability is improved, B/C values can be improved to 0.4 from 0.1.
Water outlet after microelectrolysis processing enters the compartment MSFBP processing systems of multisection type 12 and carries out biochemical treatment, and the system is adopted With high-specific surface area (5000m2/m3) fiber be filler, 1, No. 2 compartment is anaerobism, and 3-5 compartments are and oxygen, 6-12 compartments To be aerobic, wherein oxygen compatibility pool Dissolved Oxygen concentration Control is in 0.5mg/L, and Aerobic Pond Dissolved Oxygen concentration Control is in 5mg/L, sludge concentration Control is 20%.Water outlet CODCrRemoval efficiency is up to 98%, CODCrFor 189.6mg/L, salt content is 1%.
The water outlet of multisection type MSFBP biochemical treatment process Aerobic Ponds enters immersion MBR system and fast filter chamber further enters Row processing, water outlet CODCrFor 80mg/L, salt content is 0.8%.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art it is various it is obvious change, Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.

Claims (9)

1. a kind of polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby processing method, it is characterised in that including：
(1) polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby through going oil removal processing and coagulating treatment, goes in water removal Oil slick and suspension, obtain water outlet；
(2) by salt content of the water outlet in step (1) through being catalyzed in salting-out process, reduction waste water, salinity adjustment is carried out, salt is obtained Spend the high salt water outlet of appropriateness；
(3) high salt water outlet in step (2) is handled into micro-electrolysis reaction device, obtains water outlet；
(4) water outlet in step (3) is entered into multisection type biochemical treatment system and carries out biochemical treatment, obtain water outlet；
(5) bio-chemical effluent in step (4) is handled through outer immersion MBR membrane cisternas, obtains water outlet, water outlet meets qualified discharge will Ask；
(6) step (3), (4), the sludge that (5) are produced enters press filteration system, produces the outer processing of mud cake committee, and filtrate cycle, which enters, to be adjusted Save pond.
2. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature It is, the high salinity that the polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby is 10-18%, difficult degradation organic waste Water refers to its biodegradability BOD5/CODCrValue ＜ 0.1.
3. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature It is, goes oil removal processing to use scraper-type oil water separator, obtained W/O content ＜ 0.5% in the step (1).
4. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature It is, the catalytic type medicament that catalysis is applied during saltouing in the step (2) is sulfuric acid or sodium hydroxide or the mixing of the two Salt content after thing, and salinity adjustment is controlled in 1-4%.
5. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature It is, high salt water outlet in step (2) is entered into micro-electrolysis reaction device in the step (3) be processed as using the catalysis of iron carbon The redox reaction that the galvanic cell of agent is produced, the phenyl ring class peroxide that polyvinyl chloride is helped in agent production waste water, 4-8 carbon Esters chain molecule, the organic pollutant molecule chain destruction such as the ring class organic solvent such as hexamethylene forms the organic matter of small molecule, By wastewater biodegradability BOD5/CODCrRatio is improved to 0.3-0.4 from 0.1.
6. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature Be, in the step (4) multisection type biochemical treatment system use multi-compartment Pool body design, be 4 compartments or 8 compartments or 12 every Room, using the fiber of high-specific surface area as filler, packing specific area is in 2000-4000m2/m3。
7. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature It is, multisection type biochemical treatment system uses sludge concentration in multisection type biochemical processing, pond body to carry in the step (4) Up to 15-20g/L.
8. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature It is, multisection type biochemical treatment system is continuously designed using water channel type in the step (4), forms the anaerobism-simultaneous of multi-compartment Oxygen-Aerobic Process for Treatment workshop section, gradient type filters out salt tolerant bacterial population and hardly degraded organic substance processing special bacteria, and tolerance high salt contains The scope of amount is in 1-4%.
9. polyvinyl chloride auxiliary agent according to claim 1 produces high saliferous organic wastewater with difficult degradation thereby processing method, its feature It is, multisection type biochemical treatment system includes Facultative Halophiles compartment in the step (4), water outlet is through Facultative Halophiles in the step (3) The processing of compartment, bio-chemical effluent salt content ＜ 1%.
CN201710607510.9A 2017-07-24 2017-07-24 A kind of polyvinyl chloride auxiliary agent produces high saliferous organic wastewater with difficult degradation thereby processing method Pending CN107285569A (en)

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