CN104909504B - A kind of high salt high-COD waste water processing system and method - Google Patents
A kind of high salt high-COD waste water processing system and method Download PDFInfo
- Publication number
- CN104909504B CN104909504B CN201510332968.9A CN201510332968A CN104909504B CN 104909504 B CN104909504 B CN 104909504B CN 201510332968 A CN201510332968 A CN 201510332968A CN 104909504 B CN104909504 B CN 104909504B
- Authority
- CN
- China
- Prior art keywords
- water
- waste water
- oxidation
- retort
- cod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 74
- 150000003839 salts Chemical class 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 230000003647 oxidation Effects 0.000 claims abstract description 84
- 239000007800 oxidant agent Substances 0.000 claims abstract description 35
- 230000001590 oxidative effect Effects 0.000 claims abstract description 35
- 238000009826 distribution Methods 0.000 claims abstract description 32
- 238000012856 packing Methods 0.000 claims abstract description 26
- 230000003197 catalytic effect Effects 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 11
- 238000006731 degradation reaction Methods 0.000 claims abstract description 7
- 230000015556 catabolic process Effects 0.000 claims abstract description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 8
- 239000002912 waste gas Substances 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical group 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 4
- 230000000593 degrading effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 20
- -1 hydroxyl free radical Chemical class 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000006555 catalytic reaction Methods 0.000 description 8
- 238000004065 wastewater treatment Methods 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 230000004913 activation Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000006385 ozonation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000010786 composite waste Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of high salt high-COD waste water processing system and method, including retort, electrocatalysis oxidation reaction device and the oxidation injector being connected with oxidant supply equipment, wherein：The middle part of the retort is provided with packing layer, the lower section of described filler layer is provided with the water distribution unit to packing layer water distribution, the bottom of the retort is provided with a water inlet communicated with raw water, its top is provided with an outlet of sewer, the water intake end of the electrocatalysis oxidation reaction device and water side are connected with the outlet of sewer and water inlet of retort respectively, and the entrance of the oxidation injector is communicated with raw water and packing layer respectively with outlet.Residing processing system multiple can be used in series.The present invention is handled high salt high-COD waste water by multinomial catalytic oxidation technologies and electro-catalytic oxidation technology, high salt high-COD waste water is under the compound action of hydroxyl free radical, oxidant and catalyst, the COD degradation rate of waste water and the utilization rate of oxidant are all very high, and the energy-efficient processing of high salt high-COD waste water can be achieved.
Description
Technical field
The present invention relates to a kind of Waste Water Treatment and method, and in particular to one kind is applied to various high salt high-COD waste waters
Processing system and method, belong to environmentally friendly water treatment field.
Background technology
The processing of high salt high-COD waste water is always the problem of sewage treatment industry, because the salt content of waste water is high, B/C values
It is too small, and most of such high-salt wastewater has bio-toxicity, causes traditional biochemical processing method to be poorly suitable for handling this
Class waste water, and treatment effect is bad.
High salt high-COD waste water treatment technology, such as Shi Shi catalytic oxidations (CWO/WAO), photochemistry oxygen used at present
Change method, sonochemical oxidation, Ozonation, electrochemical oxidation process, Fenton oxidation method, Fenton-like method etc., are all deposited mostly
It is complex in technique, and the defect that equipment manufacturing cost is expensive, operating condition is harsh.Shi Shi catalytic oxidations are needed in HTHP
Under the conditions of operate, energy expenditure is big, dangerous high；Photochemical oxidation method, sonochemical oxidation, Ozonation and electrochemistry oxygen
Change method etc. then has that oxidizing condition is single, occupation area of equipment is big, the low shortcoming of oxidation efficiency；And Fenton oxidation method, class
Then there is the shortcomings of medicament input amount is big, sludge quantity is big in Fenton methods etc..Therefore, a kind of efficient, energy-conservation high COD of high salt is developed
Waste Water Treatment and method are very necessary.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of efficient energy-saving and the low high salt of comprehensive energy consumption
High-COD waste water processing system.In addition, present invention also offers a kind of processing method of high salt high-COD waste water.
To achieve the above object, the present invention uses following technical scheme：
A kind of high salt high-COD waste water processing system, including retort, electrocatalysis oxidation reaction device and with oxidant supply
The connected oxidation injector of equipment, wherein：The middle part of the retort is provided with packing layer, and the lower section of described filler layer is provided with to filling out
The water distribution unit of bed of material water distribution, the bottom of the retort is provided with a water inlet communicated with raw water, and its top is provided with a sewage
Outlet, the water intake end of the electrocatalysis oxidation reaction device and water side are connected with the outlet of sewer and water inlet of retort respectively,
The entrance of the oxidation injector is communicated with raw water and packing layer respectively with outlet.
Preferably：Described filler layer is provided with catalyst and/or inertia filtrate；The catalyst is metal oxide,
It is carried at least one of metal or metal oxide on carrier, porous material.
Preferably：The oxidant is ozone or hydrogen peroxide；The electrode of the electrocatalysis oxidation reaction device is BDD electricity
Pole.
Preferably：The water distribution unit includes the water distribution pipeline being connected with water inlet and in water distribution pipeline, use
In the water-distribution nozzle to packing layer water distribution.
Further：The top of the retort is provided with waste gas outlet, and water out up to standard is provided with the top of outlet of sewer.
Preferably：The oxidation injector nozzle is symmetrically and evenly distributed and with certain gradient.
Preferably：The electric catalysis reactor can be arranged in parallel many.
Preferably：The oxidation injector can be arranged in parallel many.
Preferably：The processing system multiple can be used in series.
Another object of the present invention, one kind is given up using high salt high-COD waste water processing system as described above COD high to high salt
The method that water is handled, its step includes：
1) effluent part raw water through water inlet enter retort in, and through water distribution unit on packing layer water distribution uniformity, separately
A part of waste water enters on oxidation injector, the packing layer that retort is delivered to after being mixed with oxidant, with being arranged through water distribution unit
After waste water mixing on packing layer, COD of the waste water under the synergy of filler and oxidant in degrading waste water；
2) waste water after packing layer catalytic oxidation treatment from outlet of sewer enter electrocatalysis oxidation device in carry out electro-catalysis
Oxidation processes, after the waste water circulation after being handled after through electrocatalytic oxidation is mixed to retort water inlet with waste water raw water, one
Point waste water enters in retort, another part waste water is introduced into again mix in oxidation injector with oxidant after react sending into
Carry out in tank and again step 1) in waste water COD degradation treatment, so circulation repeatedly, until the waste water after handling meets up to standard
The requirement of discharge.
The beneficial effects of the present invention are the present invention is using multinomial catalytic oxidation technologies and electro-catalytic oxidation technology to high salt
High-COD waste water is handled, high salt high-COD waste water under the compound action of hydroxyl free radical, oxidant and catalyst, waste water
COD degradation rate and the utilization rate of oxidant are all very high, and the energy-efficient processing of high salt high-COD waste water can be achieved.At the present invention
The comprehensive energy consumption of reason system is very low, and its comprehensive energy consumption is roughly equivalent to the 80% of traditional high-level oxidation technology, and the present invention
Processing system also have filtering function concurrently, can effectively control the suspension in water outlet.
Brief description of the drawings
Fig. 1 shows the structural representation of high salt high-COD waste water processing system of the present invention；
Fig. 2 shows the reaction mechanism of heterogeneous catalytic oxidation；
Fig. 3 embodiments in accordance with the present invention 1 show the structural representation of the high salt high-COD waste water processing system.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, high salt high-COD waste water processing system of the present invention, including retort 1, electrocatalytic oxidation
Reactor 2 and oxidation injector 3, wherein：The bottom of the retort 1 is provided with a water inlet being connected with raw water, its top
Provided with an outlet of sewer, the water intake end of the electrocatalysis oxidation reaction device 2 and water side respectively with the outlet of sewer of retort 1 and
Water inlet is connected；The middle part of the retort 1 is provided with packing layer 11, and in the present invention, the packed height of described filler layer 11 can
Determination is adjusted according to the time of contact of sewage and filler, as long as ensuring that its end face crosses water flow velocity for 6-8m/h, institute
Packing layer 11 is stated to urge provided with the activity for promoting and accelerating COD to aoxidize that can be evenly arranged according to the COD amounts and composition of water
The inertia filtrate of agent and/or its filtration, the lower section of described filler layer 11 is provided with water distribution unit 12, the water distribution unit 12
It is connected including the water distribution pipeline being connected with water inlet and with water distribution pipeline, is sprayed for the water distribution to progress water distribution on packing layer 11
Head；The oxidation injector 3 is connected with outside oxidant supply equipment, its entrance and export respectively with raw water and packing layer 11
It is connected, and the port of export of the oxidation injector 3 is preferably provided with a water-distribution nozzle, and the raw water for being mixed with oxidant is evenly arranged
Catalysis oxidation is carried out on packing layer 11.
In the present invention, the retort 1 can be water pot or a pond for being used to accommodate sewage, its cross section mistake
Water flow velocity 6-8m/h, total residence time of the waste water in retort 1 is 4-12 hours, above the outlet of sewer of the retort 1
A delivery port up to standard is additionally provided with, and the top of retort 1 can also be provided with a waste gas outlet, for what reaction in retort was produced
Waste gas is from Base top contact retort 1.The preferred BDD electrodes of electrode of the electrocatalysis oxidation reaction device 2, according to the difference of water quality,
The current density of the electrode is controlled in 1000-20000A/m2；The electrocatalysis oxidation reaction device 1 can use known in the art
Any electrocatalysis oxidation reaction device structure that catalysis oxidation is carried out using electrocatalytic oxidation or equivalent way, herein no longer
Repeat；The oxidation injector 3 is to utilize a fluid to transmit energy and the vacuum acquirement device of quality, using the water of certain pressure
Stream is sprayed oxidant by nozzle, and its concrete structure is the state of the art, be will not be repeated here, but it is preferred that
The nozzle of the oxidation injector 3 is preferably symmetrically uniformly distributed and with certain gradient；In the present invention, the oxidant
For strong oxidizers such as ozone, hydrogen peroxide；And in terms of the COD in waste water, the dosage of oxidant is in oxidation injector 3：Oxidation
Agent：COD=1-1.4：1 (mol ratio), the volume flow of oxidant and the volume flow ratio for entering the waste water in oxidation injector 3
For 0.8-1.2：1.In addition, Waste Water Treatment of the present invention also includes the connecting pipe for connecting each equipment and followed
Ring pump；And may include many electrocatalysis oxidation reaction being arranged in parallel devices 2 to improve electrocatalytic oxidation efficiency；The oxidation spray
Emitter 3 also can many it is used in parallel.Further, Waste Water Treatment of the invention multiple can be used in series, with lifting waste water
Treatment effeciency.
High salt high-COD waste water is handled using Waste Water Treatment as described above of the invention, its processing procedure bag
Include following steps：
1) water inlet that effluent part raw water is passed through located at the bottom of retort 1 enters in retort 1, is being filled out through water distribution unit 2
Water distribution uniformity on the bed of material 11, another part waste water mixes and sent into retort 1 through being pumped into oxidation injector 3 with oxidant
Packing layer 11 on, after being mixed with the waste water being evenly arranged in through water distribution unit 2 on packing layer 11, waste water is in filler (catalyst
And/or filtrate) and the synergy of oxidant under COD in degrading waste water；
2) after the catalytic oxidation treatment of packing layer 11, waste water is pressurized to electrocatalysis oxidation device 2 from outlet of sewer through circulating pump
Middle progress electrocatalytic oxidation processing, the effluent cycle rich in hydroxyl free radical after being handled after through electrocatalytic oxidation to retort
After 1 water inlet is mixed with waste water raw water, a part of waste water enters in retort 1, and another part waste water is again first through circulating pump
It is interior to carry out step 1 again in feeding retort 1 after mix in press-in oxidation injector 3 with oxidant) in waste water COD degraded
Repeatedly, the waste water after handling meets the requirement of qualified discharge for processing, so circulation.The production water up to standard at top in retort 1
Can the reacted top of tank 1 the water out up to standard discharge qualified discharge of retort 1 or recovery, and the waste gas that reaction is produced in retort
Retort 1 is drawn from the waste gas outlet at top.
The present invention is handled high salt high-COD waste water using multinomial catalytic oxidation technologies and electro-catalytic oxidation technology.Its
In, such as shown in Fig. 2 multi-phase catalytic oxidation mechanism (oxidant is ozone), multinomial catalytic oxidation technologies are with solid catalysis
Agent is carrier, and the selection of solid catalyst is the key whether technology has efficient oxidation efficiency, and it acts on main performance
：
1st, organic matter is adsorbed, for those adsorption capacities than larger catalyst, when water is contacted with catalyst, in water
Organic matter is attracted to the surface of these catalyst first, is formed with the surface chelate of compatibility so that oxidant is more efficient；
2nd, catalytic activation oxidizer molecule, using the high-efficiency catalytic activity of catalyst, effective catalytic activation oxidizer molecule,
Oxidizer molecule easily decomposes free radical for producing the high oxidative such as hydroxyl radical free radical etc in the presence of this kind of catalyst,
So as to improve the oxidation efficiency of oxidant；
3rd, adsorb and activate synergy, can efficient absorption organic pollutants, while again can catalytic activation oxygen
Agent molecule, produces the free radical of high oxidative, on the surface of catalyst, the absorption of organic pollution and the activation association of oxidant
Same-action, and then obtain more preferably catalytic oxidation effect.In the present invention, it can be urged according to the different choice of raw water property is different
Agent, optional catalyst has：Metal oxide, such as Al2O3、TiO2、MnO2At least one of, it is carried on the gold on carrier
Category or metal oxide, such as Cu/TiO2、Cu/Al2O3、TiO2/Al2O3At least one of, or with large specific surface area
Porous material such as activated carbon etc..
Electro-catalytic oxidation technology be to put as energy source, wherein, electro catalytic electrode is the key point of the technology.It is general next
Say, electro catalytic electrode is made up of surfacing, basic electrode, carrier and surface texture.Electro catalytic electrode can be conductive, and energy
Reactant is activated, good electric conductivity, high catalytic activity, high chemical stability and excellent mechanical performance is had concurrently.This
Preferred diamond alloy electrode (BDD electrodes) is invented, its reaction equation is as follows：
1st, selective combustion is reacted：
BDD+H2O→BDD(·OH)+H++e-
BDD(·OH)+R·→BDD+mCO2+nH2O+H++e-
2nd, competitive reaction：
BDD(·OH)→BDD+1/2O2+H++e-
3rd, cracking reaction：
RH+BDD(·OH)→R·+H2O+BDD
R·+O2→ROO·
ROO·+RH→ROOH+R·
4th, cathodic reduction reaction：
NO3 -+3H2O+5e-=1/2N2+6OH-
5th, other reactions：
Cl-·+Cl-·→Cl2+2e-
Cl2+H2O→HOCl+H++Cl-
2NH4 ++3HOCl→N2+5H++3Cl-+3H2O
In general, heterogeneous catalytic oxidation technology and electro-catalytic oxidation technology all have excellent oxidation susceptibility, wherein, it is many
The reaction of item catalytic oxidation technologies is gentleer, and energy consumption is relatively low, but not thorough to the larger molecular organicses oxidation of some difficult degradations,
And for the higher waste water of content of beary metal, the efficiency of catalyst can be then suppressed (catalyst poisoning).And electro-catalysis
The course of reaction of oxidation technology is more violent, and oxidation is more thorough, but energy consumption is higher, and in general, salt content is higher, electro-catalysis
Oxidation effectiveness is better, but energy consumption is also higher.
The present invention is combined using heterogeneous catalytic oxidation technology and electro-catalytic oxidation technology, gives full play to heterogeneous catalytic oxidation
The advantage of technology and electro-catalytic oxidation technology, waste water carries out catalysis oxygen with the internal circulating load for being several times as much as system water inlet in system interior circulation
Change reaction and electrocatalysis oxidation reaction so that the degradation reaction of useless Organic substance in water is able to continual progress, lifting waste water
Treatment effeciency, by repeatedly circulation after, the organic matter in waste water, which can obtain, thoroughly degrades or is reduced to extremely low level, and satisfaction reaches
Mark discharge or the requirement of reuse.
Embodiment 1
High salt high-COD waste water produced by certain chemical industrial park is handled using processing system and method as described above of the invention,
Wherein：Wastewater flow rate is 50t/h, electrical conductivity 30000 μ s/cm, COD600ppm.
To handle above-mentioned waste water, processing system of the invention is by the way of two systems series operation, moreover, such as Fig. 2
It is shown：1) parallel connection is provided with two D4.0 × H9.0m retort 1 altogether, and packing layer 11 makees catalyst using coke, and filling height is
3.6m；2) each retort is respectively connected with two oxidation being arranged in parallel injectors 3 and corresponding circulating pump, whole processing system
Altogether provided with 4 oxidation injectors 3 in system, i.e., four oxidation loops, oxidant uses ozone, ozone amount 4kg/h, every loop
50t/h；3) each retort is also respectively connected with three electrocatalysis oxidation reaction being arranged in parallel devices 2 and corresponding circulating pump,
Altogether provided with six circulation loops in i.e. whole processing system, using BDD electrodes, electric current 125A, Dc source power 37kW, every
Loop 25t/h.
By taking single reaction tank as an example, the running of system is as follows：25t/h waste water enters the bottom of retort 1, with 75t/h
From the mixing of 3 circulation loop water, composite waste is 100t/h, then into 2 oxidation loops, it is pressurized after enter
Injector 3 is aoxidized, enters after being mixed with ozone in retort 1, uniformly through catalyst layer in the presence of water distribution unit, most urges
In agent layer, the COD in waste water is by ozone degradation, and then, the water in the middle part of 75t/h retort enters circulation loop, by following
Enter electrocatalysis oxidation reaction device 2 after the pressurization of ring pump with the COD in further oxidized waste water and enter next reaction cycle, reaction
The 25t/h on tank top water through qualified discharge mouthful drain tank outside, the reacted top of tank 1 of oxidation gaseous effluent produced in retort 1
Waste gas outlet is discharged.Chemical industrial park high slat-containing wastewater is after being processed as above, and water outlet COD is 60ppm, and the total removal amounts of COD are 25kg/
h。
The present invention is by preferred embodiment having carried out detailed explanation.However, by studying carefully above, to each
The change and increase of embodiment are also apparent to those of ordinary skill in the art.It is intended that it is all this
A little changes and increase fall in the protection domain of the claims in the present invention.Term used herein is only to specific implementation
Example is illustrated, and it, which is not intended to, limits invention.Unless otherwise defined, all terms used herein (including skill
Art term and scientific terminology) it is identical with the understanding of those skilled in the art of the art.Known function or structure
For it is brief and it is clear consideration or repeat no more.
Claims (8)
1. a kind of high salt high-COD waste water processing system, it is characterised in that：Including retort, electrocatalysis oxidation reaction device and with
The connected oxidation injector of oxidant supply equipment, wherein：The middle part of the retort is provided with packing layer, described filler layer
Side is provided with the water distribution unit to packing layer water distribution, and the bottom of the retort is provided with a water inlet communicated with raw water, its top
Provided with an outlet of sewer, the water intake end of the electrocatalysis oxidation reaction device and water side are respectively with the outlet of sewer of retort and entering
The mouth of a river is connected, and the entrance of the oxidation injector is communicated with raw water and packing layer respectively with outlet；
Described filler layer is provided with catalyst and/or inertia filtrate；The catalyst is metal oxide, is carried on carrier
At least one of metal or metal oxide, porous material；
The oxidant is ozone or hydrogen peroxide, in terms of the COD in waste water, in the oxidation injector oxidant that is added with
COD mol ratio is 1-1.4:1；
The electrode of the electrocatalysis oxidation reaction device is BDD electrodes, and the current density of the electrode is 1000-20000A/m2。
2. processing system according to claim 1, it is characterised in that：The water distribution unit includes the cloth being connected with water inlet
Water lines and in water distribution pipeline, for the water-distribution nozzle to packing layer water distribution.
3. processing system according to claim 1, it is characterised in that：The top of the retort is provided with waste gas outlet,
The top of outlet of sewer is provided with water out up to standard.
4. processing system according to claim 1, it is characterised in that：It is described oxidation injector nozzle be symmetrically and evenly distributed and
With certain gradient.
5. processing system according to claim 1, it is characterised in that：The electrocatalysis oxidation reaction device can be arranged in parallel many
Platform.
6. processing system according to claim 1, it is characterised in that：The oxidation injector can be arranged in parallel many.
7. the processing system according to any one in claim 1-6, it is characterised in that：The processing system multiple can be gone here and there
Connection is used.
Using high salt high-COD waste water processing system as claimed in claim 1 high salt high-COD waste water is handled 8. a kind of
Method, it is characterised in that：Comprise the following steps：
1) effluent part raw water through water inlet enter retort in, and through water distribution unit on packing layer water distribution uniformity, another portion
Divide waste water to enter on oxidation injector, the packing layer that retort is delivered to after being mixed with oxidant, filled out with being arranged in through water distribution unit
After waste water mixing on the bed of material, COD of the waste water under the synergy of filler and oxidant in degrading waste water；
2) waste water after packing layer catalytic oxidation treatment from outlet of sewer enter electrocatalysis oxidation device in carry out electrocatalytic oxidation
Processing, after the waste water circulation after being handled after through electrocatalytic oxidation is mixed to retort water inlet with waste water raw water, a part is useless
Water enter retort in, another part waste water be introduced into again oxidation injector in mixed with oxidant after sending into retort in
And again carry out step 1) in waste water COD degradation treatment, so circulation repeatedly, until processing after waste water meet qualified discharge
Requirement；
Wherein：Step 1) described in oxidant be ozone or hydrogen peroxide, and in terms of the COD in waste water, the oxidation injector
Middle added oxidant and COD mol ratio are 1-1.4:1；
Step 2) described in electrocatalytic oxidation processing electrode be BDD electrodes, and the electrode current density be 1000-
20000A/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332968.9A CN104909504B (en) | 2015-06-16 | 2015-06-16 | A kind of high salt high-COD waste water processing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510332968.9A CN104909504B (en) | 2015-06-16 | 2015-06-16 | A kind of high salt high-COD waste water processing system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104909504A CN104909504A (en) | 2015-09-16 |
| CN104909504B true CN104909504B (en) | 2017-08-01 |
Family
ID=54079016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510332968.9A Active CN104909504B (en) | 2015-06-16 | 2015-06-16 | A kind of high salt high-COD waste water processing system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104909504B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585180B (en) * | 2015-12-21 | 2019-01-01 | 江苏中金环保科技有限公司 | A kind of efficient reverse osmosis thick water treatment method |
| CN108069491B (en) * | 2016-11-18 | 2021-06-25 | 北京化工大学 | Electrocatalytic oxidation method and reaction device for refractory wastewater |
| CN108178283A (en) * | 2017-12-27 | 2018-06-19 | 苏州大学 | The method for removing organic matter in high-chloride wastewater |
| CN109019784A (en) * | 2018-09-10 | 2018-12-18 | 湖南银和瓷业有限公司 | Sewage water treatment method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0694035B2 (en) * | 1990-11-14 | 1994-11-24 | 栗田工業株式会社 | Ozone contactor |
| CN101555082B (en) * | 2008-04-09 | 2011-05-25 | 中国科学院理化技术研究所 | Waste water treatment method and device combining electrochemical degradation and photocatalytic oxidation technologies |
| CN102452753B (en) * | 2010-10-26 | 2013-07-31 | 中国石油化工股份有限公司 | Saliferous organic wastewater treatment method |
| CN102642911A (en) * | 2012-05-02 | 2012-08-22 | 山东绿泉环保工程有限公司 | Advanced oxidation treatment device and advanced oxidation treatment process of refractory organic wastewater |
| CN103395908B (en) * | 2013-07-09 | 2015-06-03 | 江南大学 | Series type internal circulation Fenton fluidized-bed oxidizing tower |
| CN104512953B (en) * | 2013-09-26 | 2016-05-25 | 中国石油化工股份有限公司 | A kind of method of waste water treatment by ozone oxidation |
| CN203866082U (en) * | 2014-04-17 | 2014-10-08 | 浙江省环境保护科学设计研究院 | Oxidative system for completely mixed reaction of oxidizing agent and waste water |
| CN204874145U (en) * | 2015-06-16 | 2015-12-16 | 北京纬纶华业环保科技股份有限公司 | High COD effluent disposal system of high salt |
-
2015
- 2015-06-16 CN CN201510332968.9A patent/CN104909504B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104909504A (en) | 2015-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107759026B (en) | Catalytic ozonation-aeration bio-filtering tower collaboration processing percolate MBR water outlet devices and methods therefor | |
| CN104909504B (en) | A kind of high salt high-COD waste water processing system and method | |
| CN105060419B (en) | Multicell multidimensional electro-coagulation equipment for high ammonia-nitrogen wastewater | |
| CN107162158B (en) | Fenton fluidized bed reactor and method | |
| CN105540947A (en) | Method and system for processing drilling wastewater | |
| CN106865736B (en) | Industrial wastewater treatment method and device | |
| CN109019824B (en) | High-efficient catalytic oxidation organic wastewater treatment system | |
| CN107827222A (en) | A kind of sewage water treatment method and equipment of magnetic three-phase Fenton reactor | |
| CN104445533A (en) | Annular radial-flow negative-pressure suction internal loop photoelectric catalytic reactor | |
| CN210286990U (en) | Organic sewage and waste gas integrated treatment device | |
| CN211946615U (en) | Electrochemical coupling ozone micro-nano bubble processing system | |
| CN206188547U (en) | Four -phase catalytic oxidation device | |
| CN103936208A (en) | Efficient micro-electrolysis multiphase flow air flotation reactor | |
| CN102249444B (en) | Multi-stage series ozone catalytic oxidation deep treatment device and preparation method of catalyst applied to same | |
| CN201530743U (en) | Reverse osmosis concentrated water disposing system with emissions conforming to emission standard | |
| CN100586871C (en) | Catalysis wet oxidation reaction device for composite three-dimensional electric field | |
| CN106830457A (en) | Electrode couples ozone oxidation integral reactor | |
| CN108069491A (en) | For the electrocatalytic oxidation method and reaction unit of used water difficult to degradate | |
| CN204874145U (en) | High COD effluent disposal system of high salt | |
| CN212050663U (en) | Electrocatalytic oxidative degradation chlorine-containing organic wastewater treatment device | |
| CN102126778A (en) | Groove-type device and method for treating organic wastewater by multiphase electro-catalytic oxidation | |
| CN108383335A (en) | High-concentration organic wastewater treatment system and method | |
| CN108996810B (en) | High-concentration degradation-resistant organic wastewater zero discharge system and treatment method | |
| CN104628134A (en) | Up-flow electrochemical biofilm reactor | |
| CN210085058U (en) | Novel three-phase ozone catalytic vulcanization tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high salt and high COD wastewater treatment system and method Effective date of registration: 20210408 Granted publication date: 20170801 Pledgee: Beijing Beitou Financing Guarantee Co.,Ltd. Pledgor: BEIJING BIOTECHINA ENVIRONMENT Corp.,Ltd. Registration number: Y2021990000311 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20170801 Pledgee: Beijing Beitou Financing Guarantee Co.,Ltd. Pledgor: BEIJING BIOTECHINA ENVIRONMENT Corp.,Ltd. Registration number: Y2021990000311 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |