CN106673175A - Method for advanced treatment of organic wastewater through oxidation of chlorine - Google Patents
Method for advanced treatment of organic wastewater through oxidation of chlorine Download PDFInfo
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- CN106673175A CN106673175A CN201610965880.5A CN201610965880A CN106673175A CN 106673175 A CN106673175 A CN 106673175A CN 201610965880 A CN201610965880 A CN 201610965880A CN 106673175 A CN106673175 A CN 106673175A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/763—Devices for the addition of such compounds in gaseous form
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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Abstract
The invention relates to the technical field of wastewater treatment, particularly relates to a method for advanced treatment of organic wastewater through oxidation of chlorine, and is particularly suitable for treatment of the organic wastewater mainly focusing on small molecule pollutants. The method comprises the following steps of (1) oxidation of chlorine: introducing wastewater into a reactor, raising the temperature of the environment in the reactor to 30-90 DEG C, introducing chlorine to react, also adding an alkali liquor or solid alkali to keep the pH value of the wastewater to 4-11, and obtaining a treating fluid I; (2) catalytic wet oxidation: conducting catalytic oxidation on the treating fluid I obtained in the step (1) at the temperature of 20-60 DEG C to obtain a treating fluid II, wherein the volume flow rate of the treating fluid I is 1-5 times that of a catalyst; (3) photo-catalytic oxidation: conducting photo-catalytic oxidation on the treating fluid II obtained in the step (2) to obtain a treating fluid meeting the standard, wherein the adding mass of the catalyst is 0.5-10% of the mass of the treating fluid II. The wastewater treatment method is efficient, thorough, safe, energy-saving, and wide in range of application.
Description
Technical field
The present invention relates to technical field of waste water processing, and in particular to a kind of utilization chlorine oxidation deep-treating organic waste water
Method, is particularly suited for processing the organic wastewater based on small molecule contaminants.
Background technology
The industries such as medicine, printing and dyeing, agricultural chemicals, chemical industry, various industry are often inevitably resulted from process of production to be had
Machine waste water, it is high to there are pollutant levels in these industrial organic waste waters（Such as COD can typically reach tens thousand of or even hundreds of thousands mg/L）、
Complicated component, toxicity are big, difficult degradation stable in properties the features such as, once be discharged directly into water body, can in water treatment procedure because
Oxidation Decomposition consumes substantial amounts of dissolved oxygen in water, directly threatens hydrobiological existence, and then greatly pollution is caused to environment,
Therefore the method for the comprehensive regulation is taken such waste water just to discharge after processing.
The existing mode for processing industrial organic waste water is varied, can be by various physical chemistry and biodegradation method
The pollutant load in industrial organic waste water is reduced, the standard of discharge is finally reached.For small molecule organic wastewater, primarily now
Some processing methods have physisorphtion, evaporation concentration method, water dilution biological degradation method, advanced oxidation processes etc..
Physisorphtion is using in the porous adsorbents such as activated carbon, diatomite, sulfonated coal, slag absorption waste water
Pollutant, is purified waste water, but not only processing cost is high but also adsorbent reactivation is difficult for this method, is unfavorable for processing
High concentrated organic wastewater；Evaporation concentration method is exactly to carry out waste water to be changed into after concentration using triple effect evaporation or MVR technologies
Solid waste carries out burning disposal, and the method power consumption is big, easily causes secondary pollution to environment；Water dilution biological degradation method needs a large amount of
Water dilutes waste water, causes water resource waste, and poor to the organic molecule pollutant process effect such as cyanide, ammonia nitrogen.
Advanced oxidation processes are to grow up for the new technology for processing organic wastewater with difficult degradation thereby the nineties in 20th century, its mechanism
It is to be combined by technologies such as oxidant, catalyst, electricity, light and ultrasounds, produces the extremely strong free radical of activity, then by freedom
There is the reaction such as adduction, replacement, electro transfer, scission of link between base and organic pollution, make organic dirt of the difficult degradation in water body
Dye thing is oxidized to low toxicity or nontoxic small-molecule substance, or even direct oxidation is CO2And H2The process of O, mainly including Fenton
Oxidizing process, ozone joint advanced oxidation processes, electrochemical oxidation process, photocatalytic oxidation, Wet Catalytic Oxidation Method, microwave radiation technology oxygen
Change method, supercritical water oxidation method and other method for oxidation.Advanced oxidation processes have high treating effect, oxidative degradation thoroughly, place
The features such as reason low cost, exploitation high-level oxidation technology and the development trend that other technologies group technology is from now on.
Sewage can be aoxidized using chlorine in advanced oxidation processes, chlorine leach generates hypochlorous acid when in water, thus
There is very strong oxidisability, quickly, drastically oxidation Decomposition can be carried out to water middle and high concentration and the pollutant of difficult degradation, but
There is pollutant to remain using chlorine treatment waste water, i.e., it is processed not enough thoroughly, and there is chlorine itself toxicity, hypochlorous acid to possess acid
Property, the waste water Jing after chlorine treatment is still needed to process again and could be discharged or reuse.
Wet Catalytic Oxidation Method as the method for wastewater treatment grown up on the basis of wet air oxidation, with oxygen
Change processes thoroughly advantage, COD and NH3- N clearances reach more than 99%, it is not necessary to post-processed i.e. up to discharge mark
Standard, but its needs reacted under high temperature (200 ~ 280 DEG C), high pressure (2 ~ 8MPa), it is higher to equipment, horsepower requirements.
And photochemical catalytic oxidation has the advantages that to carry out at low temperature, oxidisability is strong and it is good to process pollutant broad spectrum activity, its
Defect is that photocatalysis quantum efficiency is low（4% or so）, process time-consuming longer when big concentration and macromolecule pollutant waste water.
The Chinese patent literature of Publication No. CN 101774739A discloses a kind of process side of neopentyl glycol industrial wastewater
Method.It carries out successively anaerobic bio-treated, Aerobic biological process, quartz sand to the organic wastewater that neopentyl glycol production process is produced
Filter and charcoal absorption is processed.The method complex process, floor space is big, when system is impacted by high-concentration waste water,
Its organic removal rate can be decreased obviously, and finally use charcoal absorption, and high cost, overall treatment efficiency is relatively low.
The content of the invention
The present invention is mainly by the way that the Wet Catalytic Oxidation Method under chlorine oxidation, low-temp low-pressure is mutually tied with photocatalytic oxidation
Close, it is proposed that a kind of efficiently thorough, energy-saving safe and method for processing organic wastewater applied widely.
For achieving the above object, a kind of method of utilization chlorine oxidation deep-treating organic waste water of present invention design, uses
In processing the organic wastewater based on small molecule contaminants, comprise the steps：
1. chlorine oxidation：Waste water is passed through into reactor, environment temperature in the reactor is risen into 30 ~ 90 DEG C, be passed through chlorine
Solid/liquid/gas reactions, while adding alkali lye or solid base, the pH value for making waste water to maintain 4-11, obtain treatment fluid I, the tail gas phase of generation
The alkali liquor absorption answered；
2. catalytic wet oxidation：By step 1. in the treatment fluid I that obtains catalytic oxidation treatment carried out at 20-60 DEG C processed
Liquid II, wherein, the volume flow rate for the treatment of fluid I is 1-5 times of catalyst volume flow velocity；
3. photochemical catalytic oxidation：By step 2. in the treatment fluid II that obtains carry out Treatment by Photocatalysis Oxidation, obtain standard compliant place
Reason liquid, wherein catalyst add quality be the mass for the treatment of fluid II 0.5 ~ 10%.
Organic wastewater of the present invention is mainly the organic wastewater that the industries such as medicine, printing and dyeing, pesticide chemical are produced, preferably
For small molecule organic wastewater, hydro carbons in organic wastewater, alcohols, ethers, ketone, aldehydes and carboxylic acids chemical combination can be efficiently removed
Thing.
Step 1. in, the pH value of waste water is adjusted to 4-11, except be conducive to react carrying out in addition to, additionally it is possible to neutralize chlorine
Hypochlorous acid produced by dissolving, promotes in water chlorine to be reacted to hypochlorous direction is generated, to go eliminating water in unnecessary chlorine
Gas, prevents it from poisoning environment.Jing after 1. step is processed, the COD in waste water can be reduced by 50% ~ 95%.
Step 1. middle addition alkali lye can be NaOH, potassium hydroxide or aqua calcis, solid base can be hydrogen
Sodium oxide molybdena, potassium hydroxide, calcium hydroxide or calcium oxide solid.
Step 2. in, due to there is step pretreatment 1., pollutant has obtained preliminary degraded, and its concentration also subtracts significantly
It is few, therefore preferable treatment effect not can reach using traditional high temperature and high pressure environment, save equipment cost and energy
Consumption, while avoiding the danger that HTHP oxidation technology brings.Jing after 2. step is processed, the COD in waste water be able to can be dropped
Within as little as 1000mg/L.
3. step adopts photochemical catalytic oxidation, and Jing after 2. 1. step processed with step, time-consuming lacks for Treatment by Photocatalysis Oxidation
Point is obscured to a great extent, now just plays that it can be carried out at low temperature, oxidisability is strong and process pollutant broad spectrum activity
Good advantage.Jing after 3. step is processed, the COD in waste water can be reduced within 300mg/L, obtain water white process
Liquid.
As the preferred of above-mentioned technical proposal, step 1. described in chlorine be continuously passed through, process every cubic metre of waste water, chlorine
Flow velocity be 200-20000L/h, the reaction time be 0.5-3 hours.
As the preferred of above-mentioned technical proposal, step 1. described in process every cubic metre of waste water, the flow velocity of chlorine is 800-
15000L/h。
Used as the preferred of above-mentioned technical proposal, the pH value of step 1. middle waste water maintains 5-9, and oxidation effectiveness is more preferably.
Described step 1. in be passed through chlorine to be passed through speed unsuitable too fast, slowly should uniformly carry out so as to add
Alkali lye or solid base reaction are uniform fully.
As the preferred of above-mentioned technical proposal, step 1. described in reactor environment temperature rise to 80 ~ 90 DEG C, oxidation effect
Fruit is more preferably.
As the preferred of above-mentioned technical proposal, step 1. described in reactor be circulation flow reactor.
Step 1. in reactor can be for tank reactor, tubular reactor, circulation flow reactor etc., wherein anti-with circulation
Treatment effeciency highest of the device to waste water is answered, effect is best；It is further preferred that if reactant liquor is passed through after chlorine easily bubble, can
Select Airlift circulating reactor.
Used as the preferred of above-mentioned technical proposal, 2. middle treatment fluid I carries out catalytic oxidation treatment and obtains step at 40-50 DEG C
Treatment fluid II, wherein, the volume flow rate for the treatment of fluid I is 1-2 times of catalyst volume flow velocity, and reaction effect is more preferably.
As the preferred of above-mentioned technical proposal, step 3. in catalyst be titanium dioxide, molysite, hydrogen peroxide, hypochlorous acid
In one or more.
As the preferred of above-mentioned technical proposal, step 3. in catalyst be hydrogen peroxide, its mass concentration be 25 ~ 35%, throw
Plus quality is the 2 ~ 6% of the mass for the treatment of fluid II.
The treatment fluid obtained Jing after 3. step is processed can directly discharge treatment fluid according to inorganic salt content and relevant regulations,
Receive biochemical treatment, concentration and recovery inorganic salts after pipe, biochemical treatment, dilution.The inorganic salts of recovery can reach technical grade, used as commodity
Sell, improve the surcharge of wastewater treatment.
The present invention compared with prior art, with advantages below and beneficial effect：
（1）Described method for processing organic wastewater is applied widely, all types of industries organic wastewater can be processed, particularly with small molecule
Glycerine small-molecule substance in industrial organic waste water, such as epoxy chlorobenzene alkane production waste water；
（2）Described method for processing organic wastewater oxidative degradation thoroughly, can efficiently remove hydro carbons, alcohols, the ether in organic wastewater
Class, ketone, aldehydes and carboxylic acid compound, the COD of waste water and TOC can be dropped within 100 mg/L；
（3）Described method for processing organic wastewater carries out under low-temp low-pressure, it is to avoid the danger that HTHP brings, and
Being capable of saving energy consumption and equipment cost；
（4）Using serialization oxidation technology flow process, it is easy to accomplish technology.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail：
Embodiment 1
The organic wastewater produced during certain chemical plant production epoxychloropropane, COD is 25361 mg/L.
Using the above-mentioned waste water of following methods process：
1. the 1L organic wastewaters produced during the chemical plant production epoxychloropropane are passed through in Airlift circulating reactor, are risen
To 80 DEG C, reactor bottom is continuously slowly introducing chlorine to temperature（The flow velocity of chlorine is 3.3mL/s）, now, organic wastewater carries gas
Bubble is formed in reactor and circulated, while being slowly added dropwise the NaOH solution that mass fraction is 30% in reactor head, makes to give up
The pH value of water maintains 6 ~ 9, and the tail gas of generation is absorbed with NaOH solution, and process time is 1h, obtains treatment fluid I, measures process
The COD of liquid I is 1793mg/L.
2. by step 1. in treatment fluid I carry out low-temp low-pressure catalytic wet oxidation process, control temperature at 50 DEG C, flow velocity
Volume for 1 speed catalyst per hour obtains treatment fluid II, and the COD for measuring treatment fluid II is 620 mg/L；
3. by step 2. in treatment fluid II carry out Treatment by Photocatalysis Oxidation, wherein catalyst is hydrogen peroxide, and its mass fraction is
30%, dosage 2%（On the basis of wastewater quality）, the power of mercury lamp is 500w, and process time is 2h, measures final process liquid
COD is 27 mg/L, can directly be discharged or as technique Water Sproading.
Embodiment 2
The organic wastewater containing big weight polyalcohol and halohydrin is produced in certain chemical plant production process, COD is 32860 mg/L.
Using the above-mentioned waste water of following methods process：
1. the 1L organic wastewaters produced in the chemical plant production process are passed through in Airlift circulating reactor, are warming up to 90 DEG C,
Reactor bottom is continuously slowly introducing chlorine（The flow velocity of chlorine is 2.9mL/s）, now, organic wastewater carries bubble in reactor
Interior formation is circulated, while being slowly added to calcium oxide solid in reactor head, the pH value for making waste water maintains 6 ~ 9, produces
Tail gas with calcium oxide aqueous solution absorb, process time is 1.5h, obtains treatment fluid I, measure treatment fluid I COD be 2622
mg/L。
2. by step 1. in treatment fluid I carry out low-temp low-pressure catalytic wet oxidation process, control temperature at 55 DEG C, flow velocity
Volume for 1 speed catalyst per hour obtains treatment fluid II, and the COD for measuring treatment fluid II is 881 mg/L；
3. by step 2. in treatment fluid II carry out Treatment by Photocatalysis Oxidation, wherein catalyst is hydrogen peroxide, and its mass fraction is
30%, dosage 3%（On the basis of wastewater quality）, the power of mercury lamp is 400w, and process time is 2.5h, measures final process liquid
COD be 16 mg/L, can directly discharge or as technique Water Sproading.
Embodiment 3
The organic wastewater containing a large amount of group compounds of aldehydes and ketones is produced in certain chemical plant production process, COD is 41156 mg/L.
Using the above-mentioned waste water of following methods process：
1. the 1L organic wastewaters produced in the chemical plant production process are passed through in injecting type circulation flow reactor, are warming up to 90 DEG C,
On injecting type circulation flow reactor top, puff prot is continuously slowly introducing chlorine（The flow velocity of chlorine is 1.9mL/s）, now, chlorine and
Waste liquid is sufficiently mixed, and circulation is formed in the reactor.It is 40% to be slowly introducing mass fraction in reactor head simultaneously
KOH solution, the pH value for making waste water maintains 6 ~ 9, and the tail gas of generation is absorbed with KOH solution, and process time is 3.0h, is processed
Liquid I, the COD for measuring treatment fluid I is 2549 mg/L.
2. by step 1. in treatment fluid I carry out low-temp low-pressure catalytic wet oxidation process, control temperature at 50 DEG C, flow velocity
Volume for 1 speed catalyst per hour obtains treatment fluid II, and the COD for measuring treatment fluid II is 743 mg/L；
3. by step 2. in treatment fluid II carry out Treatment by Photocatalysis Oxidation, wherein catalyst is hydrogen peroxide, and its mass fraction is
30%, dosage 2%（On the basis of wastewater quality）, the power of mercury lamp is 500w, and process time is 2.0h, measures final process liquid
COD be 21 mg/L, can directly discharge or as technique Water Sproading.
Embodiment 4 ~ 10
, with embodiment 1, design parameter is shown in Table 1 for the waste water of process and the processing method of employing.
Design parameter in the embodiment 5 ~ 8 of table 1, comparative example 1 ~ 3
From the data in table 1, it can be seen that when regulating step 1. waste liquor PH be 6 ~ 9, control reacting liquid temperature be 80-90 DEG C when, the removal of COD
Rate is high, and dioxygen water consumption is relatively fewer；When pH is 9 ~ 12, and waste liquid is presented strong basicity, chlorine has certain oxygen to waste liquid
Change effect, but COD clearances are not very high；When pH is 1 ~ 3, and waste liquid is presented highly acid, oxidation effectiveness of the chlorine to waste liquid
Poor, COD clearances are low.Circulation flow reactor compares other reactors（Such as tank reactor）, due to chlorine and organic wastewater
Mix more full and uniform, its water treatment effect will also be much better than other reactors.
Embodiment 11
The organic wastewater containing a large amount of hydro carbons and halogenated hydrocarbon compound is produced in certain chemical plant production process, COD is 19833
mg/L。
Using the above-mentioned waste water of following methods process：
1. the 1L organic wastewaters produced in the chemical plant production process are passed through in Airlift circulating reactor, are warming up to 90 DEG C,
Reactor bottom is continuously slowly introducing chlorine（The flow velocity of chlorine is 20L/h）, now, organic wastewater carries bubble in reactor
Formation is circulated, while being slowly added dropwise the NaOH solution that mass fraction is 40% in reactor head, the pH value for making waste water is maintained
6 ~ 9, the tail gas of generation is absorbed with NaOH solution, and process time is 1.0h, obtains treatment fluid I, and the COD for measuring treatment fluid I is
1320 mg/L。
2. by step 1. in treatment fluid I carry out low-temp low-pressure catalytic wet oxidation process, control temperature at 60 DEG C, flow velocity
Volume for 2 speed catalyst per hour obtains treatment fluid II, and the COD for measuring treatment fluid II is 684 mg/L；
3. by step 2. in treatment fluid II carry out Treatment by Photocatalysis Oxidation, wherein catalyst is nano titanium oxide, dosage
1%（On the basis of wastewater quality）, the power of mercury lamp is 500w, and process time is 1.0h, and the COD for measuring final process liquid is 34
Mg/L, can directly discharge or as technique Water Sproading.
Embodiment 12
The organic wastewater containing a large amount of alcohols and aldehyde compound is produced in certain chemical plant production process, COD is 7544mg/L.
Using the above-mentioned waste water of following methods process：
1. the 1L organic wastewaters produced in the chemical plant production process are passed through in Airlift circulating reactor, are warming up to 60 DEG C,
Reactor bottom is continuously slowly introducing chlorine（The flow velocity of chlorine is 0.8L/h）, now, organic wastewater carries bubble in reactor
Interior formation is circulated, while being slowly added dropwise the NaOH solution that mass fraction is 40% in reactor head, the pH value for making waste water is tieed up
Hold 4 ~ 8, the tail gas of generation is absorbed with NaOH solution, and process time is 0.5h, obtains treatment fluid I, measures the COD for the treatment of fluid I
For 890 mg/L.
2. by step 1. in treatment fluid I carry out low-temp low-pressure catalytic wet oxidation process, control temperature at 20 DEG C, flow velocity
Volume for 5 speed catalyst per hour obtains treatment fluid II, and the COD for measuring treatment fluid II is 564 mg/L；
3. by step 2. in treatment fluid II carry out Treatment by Photocatalysis Oxidation, wherein catalyst is molysite and hypochlorous mixing
Thing, dosage 0.5%（On the basis of wastewater quality）, the power of mercury lamp is 200w, and process time is 3h, measures final process liquid
COD be 42mg/L, can directly discharge or as technique Water Sproading.
Embodiment 13
The organic wastewater containing a large amount of ketone yl carboxylic acid class compounds is produced in certain chemical plant production process, COD is 4537 mg/
L。
Using the above-mentioned waste water of following methods process：
1. the 1L organic wastewaters produced in the chemical plant production process are passed through in Airlift circulating reactor, are warming up to 90 DEG C,
Reactor bottom is continuously slowly introducing chlorine（The flow velocity of chlorine is 0.2L/h）, now, organic wastewater carries bubble in reactor
Interior formation is circulated, while being slowly added dropwise the NaOH solution that mass fraction is 40% in reactor head, the pH value for making waste water is tieed up
Hold 5 ~ 11, the tail gas of generation is absorbed with NaOH solution, and process time is 1.0h, obtains treatment fluid I, measures the COD for the treatment of fluid I
For 763 mg/L.
2. by step 1. in treatment fluid I carry out low-temp low-pressure catalytic wet oxidation process, control temperature at 40 DEG C, flow velocity
Volume for 3 speed catalyst per hour obtains treatment fluid II, and the COD for measuring treatment fluid II is 459 mg/L；
3. by step 2. in treatment fluid II carry out Treatment by Photocatalysis Oxidation, wherein catalyst is hypochlorous acid, dosage 2%（With useless
On the basis of water quality）, the power of low pressure mercury lamp is 600w, and process time is 1.0h, and the COD for measuring final process liquid is 27mg/
L, can directly discharge or as technique Water Sproading.
Embodiment described above has been described in detail to technical scheme and beneficial effect, it should be understood that
The specific embodiment of the present invention is the foregoing is only, the present invention is not limited to, it is all to be done in the spirit of the present invention
Any modification, supplement and equivalent etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of method of utilization chlorine oxidation deep-treating organic waste water, it is characterised in that comprise the steps：
1. chlorine oxidation：Waste water is passed through into reactor, environment temperature in the reactor is risen into 30 ~ 90 DEG C, be passed through chlorine
Solid/liquid/gas reactions, while adding alkali lye or solid base, the pH value for making waste water to maintain 4-11, obtain treatment fluid I；
2. catalytic wet oxidation：By step 1. in the treatment fluid I that obtains catalytic oxidation treatment carried out at 20-60 DEG C processed
Liquid II, wherein, the volume flow rate for the treatment of fluid I is 1-5 times of catalyst volume flow velocity；
3. photochemical catalytic oxidation：By step 2. in the treatment fluid II that obtains carry out Treatment by Photocatalysis Oxidation, obtain standard compliant place
Reason liquid, wherein catalyst add quality be the mass for the treatment of fluid II 0.5 ~ 10%.
2. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 1, it is characterised in that：Step
1. chlorine is continuously passed through described in, processes every cubic metre of waste water, and the flow velocity of chlorine is 200-20000L/h, and the reaction time is 0.5-
3 hours.
3. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 2, it is characterised in that：Step
1. every cubic metre of waste water is processed described in, the flow velocity of chlorine is 800-15000L/h.
4. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 1 or 2 or 3, its feature exists
In：The pH value of step 1. middle waste water maintains 5-9.
5. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 1 or 2 or 3, its feature exists
In：Step 1. described in reactor environment temperature rise to 80 ~ 90 DEG C.
6. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 1 or 2 or 3, its feature exists
In：Step 1. described in reactor be circulation flow reactor.
7. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 1, it is characterised in that：Step
2. middle treatment fluid I carries out catalytic oxidation treatment at 40-50 DEG C and obtains treatment fluid II, wherein, the volume flow rate for the treatment of fluid I is to urge
1-2 times of agent volume flow rate.
8. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 1, it is characterised in that：Step
3. the catalyst in is one or more in titanium dioxide, molysite, hydrogen peroxide, hypochlorous acid.
9. a kind of method of utilization chlorine oxidation deep-treating organic waste water according to claim 8, it is characterised in that：Step
3. the catalyst in is hydrogen peroxide, and its mass concentration is 25 ~ 35%, adds quality for the 2 ~ 6% of the mass for the treatment of fluid II.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020020389A1 (en) * | 2018-07-27 | 2020-01-30 | Spolek Pro Chemickou A Hutni Vyrobu, Akciova Spolecnost | Process to treat waste brine |
| CN113173654A (en) * | 2021-04-01 | 2021-07-27 | 常州大学 | Wet oxidation combined treatment method for aromatic hydrocarbon-containing wastewater |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08299970A (en) * | 1995-05-09 | 1996-11-19 | Nippon Shokubai Co Ltd | Treatment of waste water including nitrogen-containing compound |
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| CN105884108A (en) * | 2016-06-08 | 2016-08-24 | 浙江奇彩环境科技股份有限公司 | Treatment process for wastewater ammonolysis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020020389A1 (en) * | 2018-07-27 | 2020-01-30 | Spolek Pro Chemickou A Hutni Vyrobu, Akciova Spolecnost | Process to treat waste brine |
| CN113173654A (en) * | 2021-04-01 | 2021-07-27 | 常州大学 | Wet oxidation combined treatment method for aromatic hydrocarbon-containing wastewater |
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Application publication date: 20170517 |