CN106630314A - Treatment system for organic matters in petrochemical sewage reverse osmosis concentrated water and treatment method thereof - Google Patents
Treatment system for organic matters in petrochemical sewage reverse osmosis concentrated water and treatment method thereof Download PDFInfo
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- CN106630314A CN106630314A CN201611207385.4A CN201611207385A CN106630314A CN 106630314 A CN106630314 A CN 106630314A CN 201611207385 A CN201611207385 A CN 201611207385A CN 106630314 A CN106630314 A CN 106630314A
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- water
- multiple catalyzing
- reverse osmosis
- tank
- catalyzing oxidation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 149
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 113
- 230000003647 oxidation Effects 0.000 claims abstract description 91
- 239000010802 sludge Substances 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 23
- 230000003197 catalytic effect Effects 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 39
- 230000008569 process Effects 0.000 claims description 30
- 238000004062 sedimentation Methods 0.000 claims description 30
- 238000005189 flocculation Methods 0.000 claims description 21
- 230000016615 flocculation Effects 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 20
- 238000005273 aeration Methods 0.000 claims description 14
- 239000002131 composite material Substances 0.000 claims description 14
- 238000010992 reflux Methods 0.000 claims description 11
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000003311 flocculating effect Effects 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 3
- 230000029219 regulation of pH Effects 0.000 abstract 2
- 230000004044 response Effects 0.000 description 21
- 238000005516 engineering process Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000013461 design Methods 0.000 description 10
- 239000002244 precipitate Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- -1 hydroxyl radical free radical Chemical class 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000006071 cream Substances 0.000 description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002401 polyacrylamide Polymers 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001376 precipitating effect Effects 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004902 Softening Agent Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 241000292525 Titanio Species 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 210000000481 breast Anatomy 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- CJTCBBYSPFAVFL-UHFFFAOYSA-N iridium ruthenium Chemical compound [Ru].[Ir] CJTCBBYSPFAVFL-UHFFFAOYSA-N 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
-
- 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
- C02F2201/48—Devices for applying magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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)
- Separation Using Semi-Permeable Membranes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a treatment system for organic matters in petrochemical sewage reverse osmosis concentrated water and a treatment method thereof. The system comprises a softening tank, a flocculating tank, a settling pond, a pH regulation tank and a multi-element catalytic oxidation device which are sequentially communicated, wherein the settling pond is communicated with the softening tank through a sludge return pump, and a softening tank stirrer and a flocculating tank stirrer are respectively arranged in the softening tank and the flocculating tank. The method comprises the following steps: sequentially softening, flocculating and settling the petrochemical sewage reverse osmosis concentrated water; inputting the water into the pH regulation tank, and regulating the pH value to 4-5; inputting the water into the multi-element catalytic oxidation device through a multi-element catalytic oxidation water inlet pump, and performing multi-element catalytic oxidation treatment; and discharging the water after reaching the standard. The actual treatment effect proves that when the petrochemical sewage reverse osmosis concentrated water is treated by the multi-element catalytic oxidation device, the COD (chemical oxygen demand) in the reverse osmosis concentrated water can be reduced from 76-116mg/L to 31-42 mg/L, and the requirements of Emission Standard of Pollutants for Petroleum Chemistry Industry (GB 31571-2015) are met.
Description
Technical field
The present invention relates to the processing system and its processing method of a kind of reverse osmosis concentrated Organic substance in water of petrifaction sewage, belong to ring
Border field of engineering technology.
Background technology
Reverse osmosiss have been widely used at present petroleum chemical enterprise's advanced treatment of wastewater and have returned as a kind of efficient desalting technology
With in；That is the standard discharge water of petroleum chemical enterprise is used as raw water, and the desalted water that high-quality is obtained Jing after reverse-osmosis treated is cold for circulation
But water moisturizing or boiler producing steam are used.Generally, counter-infiltration system by reusing sewage produce the response rate of desalted water 70%～
75% or so, the process can produce 25%～30% concentrated water simultaneously, and the pollutant such as inorganic salts and COD in concentrated water are dense
Contract nearly 4 times.According to《Petro chemical industry pollutant emission standard》The requirement of (GB 31571-2015), sewage qualified discharge
COD limit values be 60mg/L；The pollutant such as COD are exceeded in reverse osmosis concentrated water can not be directly discharged to water body, need to further process
Remove COD in eliminating water.
Reverse osmosis concentrated water water quality has following features：
(1) COD concentration is higher, typically in the range of 90～150mg/L；
(2) biodegradability is poor, the most of difficult for biological degradation organic pollution for residual of COD compositions in concentrated water；
(3) containing the Antimicrobial composition such as antisludging agent, antibacterial；
(4) inorganic salts content is high, and typically in more than 7000 μ S/cm, total dissolved solid (TDS) typically exists electrical conductivity
More than 5000mg/L.
Because the source of reverse osmosis concentrated water is from petrifaction sewage reverse osmosis concentrated water biochemical treatment process, i.e., COD in concentrated water
Composition can not be further continued for based on the organic pollution of degraded with microorganism；Therefore, continue to carry out routine biochemistry to reverse osmosis concentrated water
The effect for processing removal COD is poor.At present, more using high-level oxidation technologies such as ozone oxidation or catalytic ozonations to reverse osmosiss
Dense organic pollutants carry out process removal.Based on the high-level oxidation technology of ozone oxidation there is oxidisability relatively strong, COD to remove
The advantages of rate is higher, flow process is shorter；But have that the response time needed for ozone oxidation is longer, ozone disappears in practical engineering application
Consumption is big, construction cost and process expend higher etc. deficiency, and due in hypersaline environment, being catalyzed in During Process of Long-term Operation
Easily there is the hardened phenomenon of fouling in agent filling batch, reduces reaction efficiency.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of reverse osmosis concentrated Organic substance in water of petrifaction sewage
Processing system and its processing method.
The present invention is achieved by the following technical solutions：
The invention provides a kind of processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage, it includes：It is sequentially communicated
Softening tank, flocculation tank, sedimentation tank, pH regulator groove, multiple catalyzing oxidation unit, the sedimentation tank and softening tank are returned by sludge
Stream pump is connected, and softening tank blender and flocculation tank blender are respectively equipped with the softening tank and flocculation tank.
Preferably, it is provided with sedimentation basin mud scraper in the sedimentation tank.
Preferably, the bottom of the sedimentation tank is additionally provided with mud discharging pump.
Preferably, it is provided with pH regulator groove blender in the pH regulator groove.
Preferably, multiple catalyzing oxidation water inlet is provided between the pH regulator groove and multiple catalyzing oxidation unit
Pump.
Preferably, the multiple catalyzing oxidation unit includes multiple catalyzing oxidation reaction groove, backflow water distributor, urges
Agent supporting plate, multiple catalyzing oxidation and aeration pipe, multiple catalyzing oxidation water inlet, multiple catalyzing oxidation outlet, minus plate, sun
Pole plate, circulating pump and multiple catalyzing oxidation cycle mouth, the backflow water distributor is arranged at the oral area of reactive tank, and the catalyst holds
Supporting plate and multiple catalyzing oxidation and aeration pipe are laid in multiple catalyzing oxidation reaction groove, and multiple catalyzing oxidation and aeration pipe is located at and urges
The lower section of agent supporting plate, the minus plate and positive plate are alternately arranged in multiple catalyzing oxidation reaction groove, and minus plate
Perpendicular with catalyst supporting plate with positive plate, the multiple catalyzing aoxidizes water inlet and multiple catalyzing oxidation outlet is all provided with
The top of multiple catalyzing oxidation reaction groove sidewall is placed in, the multiple catalyzing oxidation cycle mouth is arranged at multiple catalyzing oxidation reaction
The bottom of groove sidewall.
Preferably, the multiple catalyzing oxidation outlet is located at the offside that multiple catalyzing aoxidizes water inlet, described
Multiple catalyzing oxidation cycle mouth is located at the homonymy that multiple catalyzing aoxidizes water inlet.
Preferably, composite catalyst is filled with the catalyst supporting plate, the minus plate and positive plate are equal
It is partly embedded in composite catalyst, the backflow water distributor is perforated pipe.
A kind of method for treating organic material of the processing system based on the reverse osmosis concentrated Organic substance in water of aforesaid petrifaction sewage, its
Comprise the steps：
Petrifaction sewage reverse osmosis concentrated water is softened successively, flocculated and precipitated；
In input pH value regulating reservoir, it is 4～5 to adjust pH value；
Intake pump is aoxidized by multiple catalyzing to be input into polynary catalytic oxidizing equipment, carry out multiple catalyzing oxidation processes；
Discharge after up to standard.
In softening, flocculation, precipitate phase, containing the hard of higher concentration in petrifaction sewage reverse osmosis concentrated water reverse osmosis concentrated water
Degree and basicity, carry out softening-flocculating-precipitation process first to it, hardness and basicity in reverse osmosis concentrated water are reduced, to avoid hardness
With impact of the basicity to subsequent treatment process.
Reverse osmosis concentrated water flows into successively softening tank, flocculation tank and sedimentation tank：Softening tank for cylinder, design the time of staying be
10min, softening tank is provided with vertical mixer, and rotating speed is 90 turns/min, feeding lime breast Ca (OH) in softening tank2As softening
Agent, adds 400～500mg/L of concentration.
Flocculation tank is cylinder, and the design time of staying is 20min, and flocculation tank is provided with vertical mixer, rotating speed for 55 turns/
Min, adds flocculant polyacrylamide (PAM) 5mg/L in flocculation tank.
Sedimentation tank is circle, and design upflow velocity is 1m/h, is provided with pond into water water distribution tube and mud scraper, softened and wadding
Solidifying reacted waste water flows into sedimentation tank water distribution tube, and being evenly distributed in pond carries out solid-liquid separation, is precipitated to the sludge in bottom of pond portion
By mud scraper Gua Zhi centers bucket.A sludge part in bucket is discharged by sludge pump, and a part flow to softening by blowback
Groove, the process is referred to as sludge reflux, and sludge reflux is advantageous in that：(1) coagulation and flocculating effect can be promoted, flco is improved close
Solidity, beneficial to flco in sedimentation tank precipitate and separate, and reduce precipitating sludge moisture content；(2) unreacted is contained in returned sludge
Sufficient lime cream, sludge reflux can improve the utilization rate of the part lime cream, so as to reduce softening reagent consumption.Design sludge
Reflux ratio is 10～20%.The clear liquid of precipitate and separate flows out from sedimentation tank top downflow weir.
In the pH value regulation stage, reverse osmosis concentrated water is softened-flocculation-precipitation process after pH value be about 8 or so, sedimentation tank
Water outlet carries out pH regulator from pH regulator groove is flowed into.
PH regulator groove is cylinder, and the design time of staying is 30min, and vertical mixer is provided with pH regulator groove, and rotating speed is
90 turns/min, hydrochloric acid (mass concentration 5%) is added in groove, reverse osmosis concentrated water pH value is adjusted to into 4～5 or so.
In multiple catalyzing oxidation stage, multiple catalyzing oxidation unit is promoted to by pump after reverse osmosis concentrated water is pH adjusted
Processed.Multiple catalyzing oxidation technology is to combine high-level oxidation technology and senior catalysis technique, electronic control technology and corresponding solid
The research of catalyst, at the comprehensive new type water using ti-based coating electrode, fixed composite catalyst and desorption technology development
Reason equipment.Its operation principle is described as follows：Under normal temperature and pressure conditionses, formed between specific coatings electrode by DC source
Electromagnetic field, and polynary electrode effect is formed by the solid composite catalyst filled between electrode, make in the collaboration of oxygen, catalyst
With under, efficiently and rapidly promote the generation of hydroxyl radical free radical (OH).OH has extremely strong oxidability, high using its
Oxidizing electrode current potential, the high cloud density point of easy attack organic molecule, nothing selectively breaks high concentration organic contaminant
Ring chain rupture, is oxidized to CO2、H2O。
Multiple catalyzing oxidation unit is continuous stream process in the present invention, and DC source and interior circulation are opened in processing procedure
Pump, while being input into compressed air to reactive tank bottom, that is, carries out multiple catalyzing oxidation reaction.Waste water is entered by pipeline continuous conveying
In reactive tank, reacted into beds together with interior circulation water, reaction water outlet passes through bottom outlet Jing outlet pipes
Flow out.
Multiple catalyzing oxidation unit main body is rectangle reactive tank, set gradually from top to bottom in reactive tank backflow water distributor,
Composite catalyst bed, catalyst supporting plate and aeration tube.Backflow water distributor is perforation form of tubes, is fixed on reactive tank top,
One end is connected with interior circulation water pipe；The oblique 45 ° of staggeredly perforates in perforated pipe bottom, by the uniform cloth of reactive tank interior circulation water to catalyst
On bed.The carrier of composite catalyst is column type active carbon particles, and several metal oxide is loaded with activated carbon hole.
Staggering vertical is disposed with minus plate and positive plate in composite catalyst bed, and wherein minus plate material is rustless steel SS316L, sun
Pole plate material is titanio ruthenium iridium coating layer.Positive plate top is arranged binding post and is connected with the output cathode of DC source by cable,
Minus plate top is arranged binding post and is connected with the output cathode of DC source by cable.DC source is voltage stabilizing control, output
Voltage is adjustable in 0～30V.Beds bottom is supporting plate, and supporting plate lower section is provided with aeration tube, by low-pressure compressed air
Uniformly it is diffused in reactive tank.Circulating pump is provided with outside multiple catalyzing oxidation reaction groove, pump inlet goes out with reaction tank bottom
Water pipe is connected, and circulating-pump outlet is connected by pipeline with top water distributor.Reactive tank lower sides are provided with air inlet, low with outside
Pressure compressed air inlet pipe is connected；Reactive tank upper portion side wall is provided with water inlet, is connected with outside water inlet pipe；Top is with respect to water inlet
Opposite side side wall be provided with outlet, reaction water outlet is flowed out from outlet.
Therefore, compared with prior art, the present invention has following beneficial effect：
1st, multiple catalyzing oxidation unit can produce strong oxidizer hydroxyl radical free radical [OH] with relatively low energy consumption, compare other
High-level oxidation technology, reaction condition is gentle, course of reaction does not produce sludge or concentrated solution.
2nd, multiple catalyzing oxidation unit is to organic matter removal effect is significant in petrifaction sewage reverse osmosis concentrated water reverse osmosis concentrated water,
And do not affected by entering organic matter of water concentration level, floor space is little, operation maintenance is simple.
3rd, actual processing effect shows, using multiple catalyzing oxidation unit to petrifaction sewage reverse osmosis concentrated water reverse osmosis concentrated water
Processed, reverse osmosis concentrated water COD can be reduced to 31～42mg/L by 76～116mg/L, meet《Petro chemical industry is polluted
Thing discharge standard》The requirement of (GB 31571-2015).
4th, using softening-flocculating-precipitate as multiple catalyzing oxidation pre-treatment, petrifaction sewage can effectively be removed reverse osmosis concentrated
Hardness and basicity in water reverse osmosis concentrated water, reduce high rigidity and high alkalinity to fouling in multiple catalyzing oxidation processes,
The impact of the aspects such as inhibited oxidation effect.
Description of the drawings
The detailed description by reading non-limiting example made with reference to the following drawings, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the process reaction scheme figure of the present invention；
Fig. 3 is the structural representation of multiple catalyzing oxidation unit in the present invention；
Fig. 4 is the front view of backflow water distributor in the present invention；
Fig. 5 is the generalized section of backflow water distributor in the present invention；
Fig. 6 affects for multiple catalyzing oxidation reaction voltage in the present invention on COD clearances；
Fig. 7 affects for multiple catalyzing oxidation time in the present invention on COD clearances；
Fig. 8 affects for multiple catalyzing oxidation reaction water inlet pH value in the present invention on COD clearances；
In figure：1st, softening tank, 2, softening tank blender, 3, flocculation tank, 4, flocculation tank blender, 5, sedimentation tank, 6, precipitation
Pond mud scraper, 7, sedimentation tank water distribution tube, 8, sludge reflux pump, 9, mud discharging pump, 10, pH regulator groove, 11, the stirring of pH regulator groove
Machine, 12, multiple catalyzing oxidation intake pump, 13, multiple catalyzing oxidation reaction groove, 14, circulating pump, 15, backflow water distributor, 16, cloudy
Pole plate, 17, positive plate, 18, catalyst, 19, catalyst supporting plate, 20, multiple catalyzing oxidation and aeration pipe, 21, rectifier power source,
131st, multiple catalyzing oxidation water inlet, 132, multiple catalyzing oxidation outlet, 133, multiple catalyzing oxidation cycle mouth；151st, water distribution
Hole；
A, reverse osmosis concentrated water water inlet, B, Calx, C, coagulant, D, flocculant, E, discharge sludge, F- is sour, G, low pressure compression
Air, H, process water outlet.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some deformations and improvement can also be made.These belong to the present invention
Protection domain.
The invention provides a kind of processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage, as shown in Fig. 1,3～5,
It includes：Softening tank 1, flocculation tank 3, sedimentation tank 5, pH regulator groove 10, the multiple catalyzing oxidation unit being sequentially communicated, sedimentation tank 5
It is connected by sludge reflux pump 8 with softening tank 1, softening tank blender 2 and flocculation is respectively equipped with softening tank 1 and flocculation tank 3
Groove blender 4, the oral area of sedimentation tank 5 is provided with sedimentation tank water distribution tube 7.
Sedimentation basin mud scraper 6 is provided with order to precipitating sludge is concentrated in bottom of pond center bucket, sedimentation tank 5, sedimentation tank 5
Bottom is additionally provided with mud discharging pump 9.
Efficiency is adjusted in order to improve pH value, pH regulator groove 10 is interior to be provided with pH regulator groove blender 11.
Multiple catalyzing oxidation intake pump 12 is provided between pH regulator groove 10 and multiple catalyzing oxidation unit.
Multiple catalyzing oxidation unit include multiple catalyzing oxidation reaction groove 13, backflow water distributor 15, catalyst supporting plate 19,
Multiple catalyzing oxidation and aeration pipe 20, multiple catalyzing oxidation water inlet 131, multiple catalyzing oxidation outlet 132, minus plate 16, sun
Pole plate 17, circulating pump 14 and multiple catalyzing oxidation cycle mouth 133, backflow water distributor 15 is arranged at multiple catalyzing oxidation reaction groove 13
Oral area, catalyst supporting plate 19 and multiple catalyzing oxidation and aeration pipe 20 be laid in multiple catalyzing oxidation reaction groove 13, and many
First catalysis oxidation aeration tube 20 is located at the lower section of catalyst supporting plate 19, and minus plate 16 and positive plate 17 are alternately arranged on polynary
In catalytic oxidation groove 13, minus plate 16 and positive plate 17 are electrically connected with a rectifier power source 21, and minus plate 16 and sun
Pole plate 17 is perpendicular with catalyst supporting plate 19, and multiple catalyzing oxidation water inlet 131 and multiple catalyzing oxidation outlet 132 are equal
The top of the side wall of multiple catalyzing oxidation reaction groove 13 is arranged at, multiple catalyzing oxidation cycle mouth 133 is arranged at multiple catalyzing oxidation
The bottom of the side wall of reactive tank 13.
Multiple catalyzing oxidation outlet 132 is located at the offside that multiple catalyzing aoxidizes water inlet 131, multiple catalyzing oxidation cycle
Mouth 133 is located at the homonymy that multiple catalyzing aoxidizes water inlet 131.
Catalyst 18 is filled with catalyst supporting plate 19, minus plate 16 and positive plate 17 are partly embedded into catalyst 18
Interior, backflow water distributor 15 is perforated pipe, and oblique 45 ° of perforated pipe bottom is staggeredly provided with water distributing pore 151.Can be by reactive tank interior circulation water
Uniform cloth is on beds.
A kind of method for treating organic material of the processing system based on the reverse osmosis concentrated Organic substance in water of aforesaid petrifaction sewage, such as
Shown in Fig. 2, it comprises the steps：
Petrifaction sewage reverse osmosis concentrated water is softened successively, flocculated and precipitated；
In input pH value regulating reservoir, it is 4～5 to adjust pH value；
Intake pump is aoxidized by multiple catalyzing to be input into polynary catalytic oxidizing equipment, carry out multiple catalyzing oxidation processes；
Discharge after up to standard.
In softening, flocculation, precipitate phase, containing the hard of higher concentration in petrifaction sewage reverse osmosis concentrated water reverse osmosis concentrated water
Degree and basicity, carry out softening-flocculating-precipitation process first to it, hardness and basicity in reverse osmosis concentrated water are reduced, to avoid hardness
With impact of the basicity to subsequent treatment process.
Reverse osmosis concentrated water flows into successively softening tank, flocculation tank and sedimentation tank：Softening tank for cylinder, design the time of staying be
10min, softening tank is provided with vertical mixer, and rotating speed is 90 turns/min, feeding lime breast Ca (OH) in softening tank2As softening
Agent, adds 400～500mg/L of concentration.
Flocculation tank is cylinder, and the design time of staying is 20min, and flocculation tank is provided with vertical mixer, rotating speed for 55 turns/
Min, adds flocculant polyacrylamide (PAM) 5mg/L in flocculation tank.
Sedimentation tank is circle, and design upflow velocity is 1m/h, is provided with pond into water water distribution tube and mud scraper, softened and wadding
Solidifying reacted waste water flows into sedimentation tank water distribution tube, and being evenly distributed in pond carries out solid-liquid separation, is precipitated to the sludge in bottom of pond portion
By mud scraper Gua Zhi centers bucket.A sludge part in bucket is discharged by sludge pump, and a part flow to softening by blowback
Groove, the process is referred to as sludge reflux, and sludge reflux is advantageous in that：(1) coagulation and flocculating effect can be promoted, flco is improved close
Solidity, beneficial to flco in sedimentation tank precipitate and separate, and reduce precipitating sludge moisture content；(2) unreacted is contained in returned sludge
Sufficient lime cream, sludge reflux can improve the utilization rate of the part lime cream, so as to reduce softening reagent consumption.Design sludge
Reflux ratio is 10～20%.The clear liquid of precipitate and separate flows out from sedimentation tank top downflow weir.
In the pH value regulation stage, reverse osmosis concentrated water is softened-flocculation-precipitation process after pH value be about 8 or so, sedimentation tank
Water outlet carries out pH regulator from pH regulator groove is flowed into.
PH regulator groove is cylinder, and the design time of staying is 30min, and vertical mixer is provided with pH regulator groove, and rotating speed is
90 turns/min, hydrochloric acid (mass concentration 5%) is added in groove, reverse osmosis concentrated water pH value is adjusted to into 4～5 or so.
In multiple catalyzing oxidation stage, multiple catalyzing oxidation unit is promoted to by pump after reverse osmosis concentrated water is pH adjusted
Processed.Multiple catalyzing oxidation technology is to combine high-level oxidation technology and senior catalysis technique, electronic control technology and corresponding solid
The research of catalyst, at the comprehensive new type water using ti-based coating electrode, fixed composite catalyst and desorption technology development
Reason equipment.Its operation principle is described as follows：Under normal temperature and pressure conditionses, formed between specific coatings electrode by DC source
Electromagnetic field, and polynary electrode effect is formed by the solid composite catalyst filled between electrode, make in the collaboration of oxygen, catalyst
With under, efficiently and rapidly promote the generation of hydroxyl radical free radical (OH).OH has extremely strong oxidability, high using its
Oxidizing electrode current potential, the high cloud density point of easy attack organic molecule, nothing selectively breaks high concentration organic contaminant
Ring chain rupture, is oxidized to CO2, H2O.Multiple catalyzing oxidation unit is continuous stream process in the present invention, and direct current is opened in processing procedure
Power supply and internal circulation pump, while being input into compressed air to reactive tank bottom, that is, carry out multiple catalyzing oxidation reaction.Waste water is by pipe
Road continuous conveying enters in reactive tank, is reacted into beds together with interior circulation water, and reaction water outlet is gone out by bottom
Mouth of a river Jing outlet pipes flow out.
Multiple catalyzing oxidation unit main body is rectangle reactive tank, set gradually from top to bottom in reactive tank backflow water distributor,
Composite catalyst bed, catalyst supporting plate and aeration tube.Backflow water distributor is perforation form of tubes, is fixed on reactive tank top,
One end is connected with interior circulation water pipe；The oblique 45 ° of staggeredly perforates in perforated pipe bottom, by the uniform cloth of reactive tank interior circulation water to catalyst
On bed.The carrier of composite catalyst is column type active carbon particles, and several metal oxide is loaded with activated carbon hole.
Staggering vertical is disposed with minus plate and positive plate in composite catalyst bed, and wherein minus plate material is rustless steel SS316L, sun
Pole plate material is titanio ruthenium iridium coating layer.Positive plate top is arranged binding post and is connected with the output cathode of DC source by cable,
Minus plate top is arranged binding post and is connected with the output cathode of DC source by cable.DC source is voltage stabilizing control, output
Voltage is adjustable in 0～30V.Beds bottom is supporting plate, and supporting plate lower section is provided with aeration tube, by low-pressure compressed air
Uniformly it is diffused in reactive tank.Circulating pump is provided with outside multiple catalyzing oxidation reaction groove, pump inlet goes out with reaction tank bottom
Water pipe is connected, and circulating-pump outlet is connected by pipeline with top water distributor.Reactive tank lower sides are provided with air inlet, low with outside
Pressure compressed air inlet pipe is connected；Reactive tank upper portion side wall is provided with water inlet, is connected with outside water inlet pipe；Top is with respect to water inlet
Opposite side side wall be provided with outlet, reaction water outlet is flowed out from outlet.
Multiple catalyzing oxidation technology parameter optimization
First, response voltage
30min is reacted respectively under the differential responses voltage such as 20V～30V using multiple catalyzing oxidation unit, reaction is investigated
The impact that voltage is removed to reverse osmosis concentrated water COD, result of the test is shown in Table shown in 1 and Fig. 6.
COD removal effects under the different voltages of table 1
It will be appreciated from fig. 6 that with the increase of response voltage, multiple catalyzing oxidation gradually rises to reverse osmosis concentrated water COD clearances
It is high.When response voltage is in 20～27.5V is interval, COD clearances are very fast as the increase of response voltage is raised, and improve from 14%
To 39%；When response voltage reach 27.5V it is follow-up of continuing rising high when, for improve COD clearances DeGrain.From engineering Jing
Ji angle considers that the higher energy consumption of reaction of response voltage is bigger, it is thus determined that multiple catalyzing oxidation processes reverse osmosis concentrated water is optimal
Response voltage is 27.5V.
2nd, the response time
Response voltage is set to into 27.5V, reverse osmosis concentrated water pH value is not adjusted, is pressed in multiple catalyzing oxidation processes
According to certain time interval sample analysis, impact of the response time to COD clearances is investigated, result of the test is shown in Table 2 and Fig. 7 institutes
Show.
2 differential responses time of table COD removal effects
As shown in Figure 7, COD clearances with the prolongation in response time in the trend that is stepped up, and the response time 50～
Water outlet CODCr is less than 50mg/L after 60min, has reached reverse osmosis concentrated water process emission request；Simultaneously, it is also observed that the response time
After 40～50min, COD clearances raise trend and have slowed down.For practical engineering application, the response time is longer, equipment
Investment is bigger, it is thus determined that during using multiple catalyzing oxidation processes reverse osmosis concentrated water, optimum reacting time is 40～50min.
3rd, water inlet pH value
Response voltage is set to into 27.5V, the response time is 50min, adds hydrochloric acid regulation reverse osmosis concentrated water pH and be respectively
3,4,5,6,7 carry out multiple catalyzing oxidation reaction, when influent COD Cr is 90mg/L, investigate water inlet pH value to COD clearances
Impact, result of the test is shown in Table shown in 3 and Fig. 8.It can be seen that as water inlet pH value is gradually lowered, multiple catalyzing is aoxidized to reverse osmosis concentrated
The COD clearances of water gradually rise, and when pH value of intaking is 4, COD clearances reach peak.
The different water inlet pH value COD removal effects of table 3
Based on above-mentioned operation result, show that multiple catalyzing oxidation optimum working parameter is：40～50min of response time, instead
Answer voltage 27.5V, 70～90A of kinetic current, reaction water inlet pH value 4～5, water outlet pH value～6.5.
Petrifaction sewage reverse osmosis concentrated water reverse osmosis concentrated water is processed using process route of the present invention and device,
1st, reverse osmosis concentrated water enters the water hardness and basicity is respectively 773mg/L and 654mg/L, softened-flocculation-precipitation process
Afterwards, hardness and basicity are reduced to 186mg/L and 124mg/L；
2nd, when reverse osmosis concentrated water CODCr is 76～116mg/L, it is 31～42mg/L to process water outlet CODCr, is met
《Petro chemical industry pollutant emission standard》The requirement of CODCr ＜ 50mg/L in (GB 31571-2015).
In sum, only presently preferred embodiments of the present invention, not for limiting the scope of present invention enforcement, it is all according to
The impartial change carried out by shape, construction, feature and spirit described in scope of the invention as claimed and modification, all should be included in this
In the right of invention.
Claims (9)
1. the processing system of the reverse osmosis concentrated Organic substance in water of a kind of petrifaction sewage, it is characterised in that include：The softening being sequentially communicated
Groove, flocculation tank, sedimentation tank, pH regulator groove, multiple catalyzing oxidation unit, the sedimentation tank passes through sludge reflux pump phase with softening tank
Connection, is respectively equipped with softening tank blender and flocculation tank blender in the softening tank and flocculation tank.
2. the processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage as claimed in claim 1, it is characterised in that described heavy
Shallow lake is provided with sedimentation basin mud scraper in pond.
3. the processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage as claimed in claim 1 or 2, it is characterised in that institute
The bottom for stating sedimentation tank is additionally provided with mud discharging pump.
4. the processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage as claimed in claim 1, it is characterised in that the pH
PH regulator groove blender is provided with regulating tank.
5. the processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage as claimed in claim 1, it is characterised in that the pH
Multiple catalyzing oxidation intake pump is provided between regulating tank and multiple catalyzing oxidation unit.
6. the processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage as described in claim 1 or 5, it is characterised in that institute
Multiple catalyzing oxidation unit is stated including multiple catalyzing oxidation reaction groove, backflow water distributor, catalyst supporting plate, multiple catalyzing oxidation
Aeration tube, multiple catalyzing oxidation water inlet, multiple catalyzing oxidation outlet, minus plate, positive plate, circulating pump and multiple catalyzing oxygen
Change circulation port, the backflow water distributor is arranged at the oral area of reactive tank, the catalyst supporting plate and multiple catalyzing oxidation and aeration
Pipe is laid in multiple catalyzing oxidation reaction groove, and multiple catalyzing oxidation and aeration pipe is located at the lower section of catalyst supporting plate, described
Minus plate and positive plate are alternately arranged in multiple catalyzing oxidation reaction groove, and minus plate and positive plate with catalyst support
Plate is perpendicular, and the multiple catalyzing oxidation water inlet and multiple catalyzing oxidation outlet may be contained within multiple catalyzing oxidation reaction groove
The top of side wall, the multiple catalyzing oxidation cycle mouth is arranged at the bottom of multiple catalyzing oxidation reaction groove sidewall.
7. the processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage as claimed in claim 6, it is characterised in that
The multiple catalyzing oxidation outlet is located at the offside that multiple catalyzing aoxidizes water inlet, the multiple catalyzing oxidation cycle mouth
The homonymy of water inlet is aoxidized positioned at multiple catalyzing.
8. the processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage as claimed in claim 6, it is characterised in that
Composite catalyst is filled with the catalyst supporting plate, the minus plate and positive plate are imbedded in composite catalyst,
The backflow water distributor is perforated pipe.
9. a kind of Organic substance of processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage based on described in claim 1 is processed
Method, it is characterised in that comprise the steps：
Petrifaction sewage reverse osmosis concentrated water is softened successively, flocculated and precipitated；
In input pH value regulating reservoir, it is 4～5 to adjust pH value；
Intake pump is aoxidized by multiple catalyzing to be input into polynary catalytic oxidizing equipment, carry out multiple catalyzing oxidation processes；
Discharge after up to standard.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500441A (en) * | 2017-10-13 | 2017-12-22 | 中联环股份有限公司 | A kind of landfill leachate thick water processing system and processing method |
| CN108285231A (en) * | 2018-03-12 | 2018-07-17 | 博天环境集团股份有限公司 | A kind of device and method of the reverse osmosis concentrated Organic substance in water of removal |
| CN111170547A (en) * | 2020-01-17 | 2020-05-19 | 岳阳林纸股份有限公司 | Softening method of high-hardness regenerated high-strength corrugated paper papermaking wastewater |
| CN111348771A (en) * | 2018-12-21 | 2020-06-30 | 蓝星工程有限公司 | Hardness and COD removing sewage integrated treatment method and method |
| CN111573980A (en) * | 2020-05-22 | 2020-08-25 | 西南科技大学 | Treatment process of wastewater containing ammonium sulfate and high content of organic matters |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993162A (en) * | 2009-08-27 | 2011-03-30 | 中国石油化工股份有限公司 | Method for treating reverse osmosis concentrated water |
| CN105174641A (en) * | 2015-10-10 | 2015-12-23 | 博瑞德（南京）净化技术有限公司 | Treating technology for chemical RO concentrated water |
| CN105271582A (en) * | 2015-11-24 | 2016-01-27 | 上海东振环保工程技术有限公司 | Leachate advanced treatment device and treatment method for domestic waste landfill |
| CN206345748U (en) * | 2016-12-23 | 2017-07-21 | 上海东振环保工程技术有限公司 | The processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage |
-
2016
- 2016-12-23 CN CN201611207385.4A patent/CN106630314A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993162A (en) * | 2009-08-27 | 2011-03-30 | 中国石油化工股份有限公司 | Method for treating reverse osmosis concentrated water |
| CN105174641A (en) * | 2015-10-10 | 2015-12-23 | 博瑞德（南京）净化技术有限公司 | Treating technology for chemical RO concentrated water |
| CN105271582A (en) * | 2015-11-24 | 2016-01-27 | 上海东振环保工程技术有限公司 | Leachate advanced treatment device and treatment method for domestic waste landfill |
| CN206345748U (en) * | 2016-12-23 | 2017-07-21 | 上海东振环保工程技术有限公司 | The processing system of the reverse osmosis concentrated Organic substance in water of petrifaction sewage |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500441A (en) * | 2017-10-13 | 2017-12-22 | 中联环股份有限公司 | A kind of landfill leachate thick water processing system and processing method |
| CN108285231A (en) * | 2018-03-12 | 2018-07-17 | 博天环境集团股份有限公司 | A kind of device and method of the reverse osmosis concentrated Organic substance in water of removal |
| CN108285231B (en) * | 2018-03-12 | 2024-01-23 | 博天环境集团股份有限公司 | Device and method for removing organic matters in reverse osmosis concentrated water |
| CN111348771A (en) * | 2018-12-21 | 2020-06-30 | 蓝星工程有限公司 | Hardness and COD removing sewage integrated treatment method and method |
| CN111170547A (en) * | 2020-01-17 | 2020-05-19 | 岳阳林纸股份有限公司 | Softening method of high-hardness regenerated high-strength corrugated paper papermaking wastewater |
| CN111170547B (en) * | 2020-01-17 | 2021-09-10 | 岳阳林纸股份有限公司 | Softening method of high-hardness regenerated high-strength corrugated paper papermaking wastewater |
| CN111573980A (en) * | 2020-05-22 | 2020-08-25 | 西南科技大学 | Treatment process of wastewater containing ammonium sulfate and high content of organic matters |
| CN115893744A (en) * | 2022-11-30 | 2023-04-04 | 中冶南方都市环保工程技术股份有限公司 | Coking wastewater sectional multi-stage recycling treatment system and method |
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Application publication date: 20170510 |