CN106986498A - A kind of advanced treatment process of percolate bio-chemical effluent - Google Patents
A kind of advanced treatment process of percolate bio-chemical effluent Download PDFInfo
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- CN106986498A CN106986498A CN201710305643.0A CN201710305643A CN106986498A CN 106986498 A CN106986498 A CN 106986498A CN 201710305643 A CN201710305643 A CN 201710305643A CN 106986498 A CN106986498 A CN 106986498A
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- percolate
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- chemical effluent
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/305—Treatment of water, waste water, or sewage by irradiation with electrons
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- 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 Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of advanced treatment process of percolate bio-chemical effluent, first toward flocculant is added in percolate bio-chemical effluent, mix and staticly settle subsequently into coagulative precipitation tank；Percolate after precipitation enters reaction of low temperature plasma device, to remove most of organic matter in percolate；Percolate after being handled through reaction of low temperature plasma device enters BAF, to remove remaining organic matter in water removal；The percolate handled through BAF a, part is back in pending percolate bio-chemical effluent by the reflux line of BAF, is added and is entered coagulative precipitation tank after flocculant, so circulation；The delivery pipe qualified discharge that another part passes through BAF.Using the PROCESS FOR TREATMENT percolate bio-chemical effluent, energy stably reaching standard discharge does not produce concentrate.
Description
Technical field
The present invention be applied to sewage treatment process, more particularly, to it is a kind of to percolate bio-chemical effluent using " coagulation+
The technique of advanced oxidation+biochemistry " technical finesse.
Background technology
Organic pollutant category is various in city domestic refuse percolation liquid, and water quality is complicated, and ammonia nitrogen and content of beary metal are high, water
Matter water changes greatly, and processing is difficult.At present we can be processed to《Integrated wastewater discharge standard》(GB8978-1996) three-level
Standard, still, how to reach primary standard or《Household refuse landfill sites contamination control standard》(GB 16889-2008) even
Accomplish zero-emission, be still a problem.Film process is a kind of advanced treating means being widely used at present, and can reach stable water outlet
Primary standard, but its concentrate produced allows people's headache.It is how economical, stably in view of national requirements for environmental protection is further strict
It is extremely urgent with this problem is efficiently solved.
The content of the invention
Present invention aim to address handle during city domestic refuse percolation liquid to exist in the prior art using film process
Deficiency there is provided a kind of advanced treatment process of percolate bio-chemical effluent, it uses " coagulation+advanced oxidation+biochemistry " place
PROCESS FOR TREATMENT percolate bio-chemical effluent is managed, qualified discharge is stabilized it, does not produce concentrate.
The object of the present invention is achieved like this：
A kind of advanced treatment process of percolate bio-chemical effluent, comprises the following steps：
(1) toward flocculant is added in percolate bio-chemical effluent, mix and staticly settle subsequently into coagulative precipitation tank；
(2) percolate after precipitation enters reaction of low temperature plasma device, to remove big portion in percolate
Divide organic matter；Reaction of low temperature plasma device is the highly effective reaction by O3 catalytic oxidation and corona treatment combination
Device.Inside reactor fills ozone catalyst, and ozone catalyst is granular activated carbon (GAC), CNT (CNT), load
The GAC of transition metal, the CNT for having loaded transition metal, the GAC for having loaded transition metal oxide, mistake is loaded
The one or more crossed in the CNT of metal oxide.
(3) percolate after being handled through reaction of low temperature plasma device enters BAF, to go in water removal
Remaining organic matter；
(4) percolate handled through BAF a, part is back to by the reflux line of BAF
In pending percolate bio-chemical effluent, add and enter coagulative precipitation tank after flocculant, so circulation；Another part passes through
The delivery pipe qualified discharge of BAF.
Further, in step (1), the flocculant is selected from aluminium polychloride, iron chloride, bodied ferric sulfate or polyaluminium
Any one in iron.
Further, in step (1), the consumption of the flocculant is 0.1-4g/L.
Further, in step (3), in BAF, gas-water ratio is 4~7:1, percolate is filtered in aeration and biological
The residence time is 7~12h in pond.
Further, the gas outlet of reaction of low temperature plasma device by check-valves and BAF air inlet with threeway
It is connected.The waste gas that reaction of low temperature plasma device is produced enters BAF, and recycling residual ozone, there is provided microorganism
Oxygen needed for existence, reduces the polluter in blower fan aeration quantity, waste gas, is degraded, protected by BAF effect
Demonstrate,prove outlet pollution-free.
The principle of the present invention：Percolate bio-chemical effluent first passes around flocculation sediment, with remove partial organic substances and divalence from
Son, saves subsequent treatment expense, and percolate after precipitation enters reaction of low temperature plasma device, plasma discharge process
Middle generation a series of physical, chemical effect, form strong oxidizing property group (H, O, OH etc.) and Strong oxdiative in percolate
Property material (H2O2、O3Deng), while ultrasonic wave, ultraviolet radioactive and high energy electron bombardment etc. are supervened, collective effect pollution degradation
The O produced in material, inside reactor filling ozone catalyst, with plasma discharge processes3Effect, occurs catalysis ozone oxygen
Change the pollutant in reaction, enhancing degradation percolate.Organic matter is handled by O3 catalytic oxidation reaction of low temperature plasma device
Afterwards, most of permineralization or small molecule easily biological-degradable organic matter, O3 catalytic oxidation reaction of low temperature plasma are decomposed into
The microorganism that device water outlet enters in BAF, BAF is by easily biological-degradable organic matter remaining in percolate
Degraded.The waste gas produced in O3 catalytic oxidation reaction of low temperature plasma device contains a large amount of O2、O3With it is a small amount of undegraded complete
Small organic molecule, is passed through BAF air inlet, O therein2、O3Oxidation of organic compounds can be continued, be that microorganism supplies
Oxygen, lifts aeration effect, reduces blower fan aeration quantity, undegraded complete small organic molecule can be by BAF
The effect of microorganism obtains degradable.The waste gas produced in reaction of low temperature plasma device passes through the processing of BAF
It can directly discharge, it is to avoid air pollution, to ensure treatment effect, effluent of aeration biological filter partial reflux entered into coagulation
Sedimentation basin, makes the repeated multiple times process materialization of percolate and biochemical action, it is ensured that the clearance of organic matter.
The beneficial effects of the invention are as follows：Percolate bio-chemical effluent first passes around flocculation sediment, removes partial organic substances and two
Valency ion, reduces subsequent treatment cost.Percolate precipitates water outlet, can by O3 catalytic oxidation reaction of low temperature plasma device
By most of organic matter permineralization or to resolve into small molecule easily biological-degradable organic matter, through micro- life in BAF
Thing effect is removed.The waste gas produced in O3 catalytic oxidation reaction of low temperature plasma device enters BAF, residual
After-odour oxygen continues to aoxidize organic matter, and remnant oxygen provides oxygen source for microorganism, and amounts of residual contamination is by BAF
Degraded, it is to avoid aerogenesis pollution environment.BAF production water section is back to coagulative precipitation tank, percolate is made repeatedly
With pollutant is fully degraded, it is ensured that effluent quality is up to standard.Through this PROCESS FOR TREATMENT, the secondary pollution such as no concentrate, waste gas
Produce.
Brief description of the drawings
Fig. 1 is the process chart of the advanced treatment process of percolate bio-chemical effluent of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the process chart of the advanced treatment process of percolate bio-chemical effluent of the present invention.
Embodiment 1
(1) toward addition flocculant poly aluminium chloride in percolate bio-chemical effluent, dosage is 1g/L, subsequently into coagulation
Sedimentation basin is mixed and staticly settled.
(2) percolate after precipitation enters reaction of low temperature plasma device, by plasma discharge processes
Strong oxidizing property group (H, O, OH etc.), the oxidizing species (H of generation2O2、O3Deng), ultrasonic wave, ultraviolet radioactive, height
Energy electron bombardment collective effect, while the ozone catalyst filled in contact reactor, makes organic matter by catalysis oxidation, it is most of
By permineralization or it is decomposed into small molecule easily biological-degradable organic matter.
(3) percolate after being handled through reaction of low temperature plasma device enters BAF, and pollutant is given birth to
Thing is degraded, in BAF, and gas-water ratio is 4~7:1, percolate residence time in BAF is 10h.
(4) percolate handled through BAF a, part is back to by the reflux line of BAF
In pending percolate bio-chemical effluent, add and enter coagulative precipitation tank after flocculant, so circulation；Another part passes through
The delivery pipe qualified discharge of BAF.
In the embodiment, the gas outlet of reaction of low temperature plasma device by check-valves and BAF air inlet with
Threeway is connected, and the waste gas that reaction of low temperature plasma device is produced enters BAF, and recycling residual ozone, there is provided micro-
Oxygen needed for biological existence, reduces the polluter in blower fan aeration quantity, waste gas, is dropped by BAF effect
Solution, it is ensured that outlet is pollution-free.
Claims (5)
1. a kind of advanced treatment process of percolate bio-chemical effluent, it is characterised in that comprise the following steps：
(1) toward flocculant is added in percolate bio-chemical effluent, mix and staticly settle subsequently into coagulative precipitation tank；
(2) percolate after precipitation enters reaction of low temperature plasma device, largely has to remove in percolate
Machine thing；
(3) percolate after being handled through reaction of low temperature plasma device enters BAF, remaining in water removal to go
Organic matter；
(4) percolate handled through BAF a, part is back to by the reflux line of BAF and waits to locate
In the percolate bio-chemical effluent of reason, add and enter coagulative precipitation tank after flocculant, so circulation；Another part passes through aeration
The delivery pipe qualified discharge of biofilter.
2. the advanced treatment process of percolate bio-chemical effluent as claimed in claim 1, it is characterised in that in step (1),
Any one of the flocculant in aluminium polychloride, iron chloride, bodied ferric sulfate or poly-ferric chloride.
3. the advanced treatment process of percolate bio-chemical effluent as claimed in claim 1, it is characterised in that in step (1),
The consumption of the flocculant is 0.1-4g/L.
4. the advanced treatment process of percolate bio-chemical effluent as claimed in claim 1, it is characterised in that in step (3),
In BAF, gas-water ratio is 4~7:1, percolate residence time in BAF is 7~12h.
5. the advanced treatment process of percolate bio-chemical effluent as claimed in claim 1 or 2 or 3 or 4, it is characterised in that
The gas outlet of reaction of low temperature plasma device is connected by check-valves with BAF air inlet with threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710305643.0A CN106986498A (en) | 2017-05-03 | 2017-05-03 | A kind of advanced treatment process of percolate bio-chemical effluent |
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| CN201710305643.0A CN106986498A (en) | 2017-05-03 | 2017-05-03 | A kind of advanced treatment process of percolate bio-chemical effluent |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751581A (en) * | 2018-05-25 | 2018-11-06 | 中节能工程技术研究院有限公司 | A kind for the treatment of process of landfill leachate bio-chemical effluent |
| CN109626668A (en) * | 2018-11-28 | 2019-04-16 | 烟台金正环保科技有限公司 | A kind of processing method of landfill leachate |
| CN112919669A (en) * | 2021-01-21 | 2021-06-08 | 江西楚杭环保科技有限公司 | Deep treatment method for heavy metal sewage of refuse landfill |
| CN113121069A (en) * | 2021-05-25 | 2021-07-16 | 沈阳农业大学 | Radio frequency liquid phase discharge-moving bed biofilm coupling treatment device and process |
| CN113429039A (en) * | 2020-03-23 | 2021-09-24 | 三菱电机(中国)有限公司 | Organic wastewater treatment method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108751581A (en) * | 2018-05-25 | 2018-11-06 | 中节能工程技术研究院有限公司 | A kind for the treatment of process of landfill leachate bio-chemical effluent |
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| CN109626668A (en) * | 2018-11-28 | 2019-04-16 | 烟台金正环保科技有限公司 | A kind of processing method of landfill leachate |
| CN113429039A (en) * | 2020-03-23 | 2021-09-24 | 三菱电机(中国)有限公司 | Organic wastewater treatment method and system |
| CN112919669A (en) * | 2021-01-21 | 2021-06-08 | 江西楚杭环保科技有限公司 | Deep treatment method for heavy metal sewage of refuse landfill |
| CN113121069A (en) * | 2021-05-25 | 2021-07-16 | 沈阳农业大学 | Radio frequency liquid phase discharge-moving bed biofilm coupling treatment device and process |
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