CN107804917A - A kind of biological potentiating agent for being used to improve industrial wastewater biochemical system treatment effeciency - Google Patents
A kind of biological potentiating agent for being used to improve industrial wastewater biochemical system treatment effeciency Download PDFInfo
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- CN107804917A CN107804917A CN201711015212.7A CN201711015212A CN107804917A CN 107804917 A CN107804917 A CN 107804917A CN 201711015212 A CN201711015212 A CN 201711015212A CN 107804917 A CN107804917 A CN 107804917A
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- agent
- biochemical system
- industrial wastewater
- biological potentiating
- wastewater biochemical
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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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- 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
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a kind of biological potentiating agent for being used to improve industrial wastewater biochemical system treatment effeciency, belong to industrial waste water treatment.The biological potentiating agent is made up of A agent and B agent, and A agent is formulated by following raw material according to mass percent：Microbial cells processing product 15% 30%, nutrition salt mixture 0.5% 1%, preservative agent 0.6% 1.5%, remaining as water；B agent is solid-state flocculant mixture.This biological potentiating agent has holding time length, synergistic effect clear advantage, the activity of biochemical system activated sludge can be improved, promote the growth of microorganism, improve its degradation capability to pollutant, strengthen the flocculating property of activated sludge, it is especially poor or synergistic effect when being impacted becomes apparent in biochemical system state.
Description
Technical field
The invention belongs to industrial waste water treatment, is specifically that one kind is used to improve the processing of industrial wastewater biochemical system
The biological potentiating agent of efficiency.
Background technology
With industrial expansion, the discharge capacity of industrial wastewater also increasingly increases.Industrial wastewater is carried in production process with water
The pollutants such as raw materials for production, intermediate product and the product of loss.Species is more, complicated component, and intractability is industrial wastewater greatly
Main feature.If industrial wastewater, which can not be effectively addressed, to be adversely affected to environment.At present, country increases
Management to Sewage Environment pollution.The implementation of " ten, water " and all kinds of sewage discharges carry mark, to each sewage disposal
The disposal ability stood proposes higher requirement.
The handling process of industrial wastewater generally has Physical, chemical method and bioanalysis, and bioanalysis is most of sewage disposal
The technique that factory can use.Traditional activated sludge process, SBR methods, MBR methods and oxidation ditch process etc. are made with activated sludge in bioanalysis
For the core of technique.The performance of activated sludge is directly connected to the treatment effect of whole sewage disposal biochemical system, therein micro-
Degraded of the biocoene to pollutant plays a major role.For industrial wastewater, water quality and quantity fluctuation is big easily to department of biochemistry
System produces impact and causes the death of microorganism and be lost in.The processing effect of biochemical system can be effectively improved by improving the quantity of microorganism
Rate.
The growth metabolism of microorganism needs a variety of nutrition such as carbon source, nitrogen source, phosphorus source, inorganic salts, amino acid, biotic factor
Material.Waste water can be that the nutriment that biology propagation provides is less, especially impacted or needed to carry in biochemical system
During high throughput, when only supplementing single nitrogen, phosphorus and glucose by conventional method, it is difficult to realize activated sludge in the short time
System is recovered, will necessarily be to subsequent technique build-up of pressure, or even Process for Effluent can be caused not up to standard.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of life for being used to improve industrial wastewater biochemical system treatment effeciency
Thing synergist.The biological potentiating agent can provide necessary nutriment for the division growth of microorganism, strengthen activated sludge
Flocculating property, the loss of microorganism fungus kind is reduced, improve its degradation capability to pollutant, it is especially poor in biochemical system state
Or synergistic effect when being impacted becomes apparent.
A kind of biological potentiating agent for being used to improve industrial wastewater biochemical system treatment effeciency, is made up of, the A A agent and B agent
Agent is formulated by following raw material according to mass percent：Microbial cells processing product 15%-30%, nutrition salt mixture
0.5%-1%, preservative agent 0.6%-1.5%, remaining as water；The B agent is solid-state flocculant mixture；
The microbial cells processing product is that waste microbial zymotic fluid collects simultaneously fracturing cell walls by conventional methods
The processing product that is obtained after compound protease decomposes of wet thallus；The quality percentage of wherein described compound protease and wet thallus
Than being preferably 0.35~1.5:100；
The nutrition salt mixture is that magnesium salts, molysite and manganese salt according to mass ratio are 20~35:4~7:1 ratio mixing
Mixture；
The preservative agent is the one or more in glutaraldehyde, OIT, benzalkonium chloride；
Described is that solid-state flocculant mixture is poly- phosphorus aluminium chloride, poly-ferric chloride and one kind and carboxylic in bodied ferric sulfate
Methylcellulose is 500~1000 according to mass ratio:The mixture of 1 ratio mixing.
Present invention also offers the application method that a kind of above-mentioned biological potentiating agent is used for industrial wastewater biochemical system：In biochemistry
System water inlet is added, and first adds A agent, and B agent is added after 15~30min, and wherein A agent dosage is daily 2-20mg/L,
Add 7-30 days；B agent dosage is daily 0.2-0.8mg/L, is added 3-6 days.
It is more that the present invention using microbial cells produces amino acid, vitamin, trace element etc. after composite protease hydrolysis
Kind nutriment, the growth metabolism of microorganism can be promoted, accelerate microbial growth speed.Especially select discarded microbial bacteria
Body, production cost can be greatlyd save.Biological potentiating agent of the present invention contains more nutriment, must if do not handled it
Can so face the holding time it is short, easily pollution microbes the problem of.Preservative agent component is using glutaraldehyde, isothiazole in A agent of the present invention
One or more in quinoline ketone, benzalkonium chloride, it can be used as microbial bactericide, but it is not in the case where usage amount is few
Suppression can be produced to the growth metabolism of microorganism, and the water quality of sewage disposal system will not be had an impact.Therefore, using suitable
Concentration when biological potentiating agent preserves using the growth that can effectively suppress miscellaneous bacteria, greatly extend synergist holding time and
The quality of synergist is can guarantee that, after synergist is added to sewage disposal biological tank, the concentration of preservative agent is diluted significantly, not
Can have a negative impact to activated sludge.By the solid flocculant mixture for adding appropriate zoogloea can be made to form firm frame
Frame structure, is adhered to beneficial to microorganism, so as to reduce the loss of effective microbe, strengthens its impact resistance.Can when adding
Adjust the dosage of flocculant in real time according to the actual conditions of activated sludge.
Compared with prior art, the biological potentiating agent that the invention is used to improve industrial wastewater biochemical system treatment effeciency has
Advantages below：
(1) biological potentiating agent of the present invention have production cost is low, the holding time is long, synergistic effect is obvious, resistance tocrocking and
The advantages of impact resistance is strong, the activity of biochemical system activated sludge can be improved, promote the growth of microorganism, improve it to pollution
The degradation capability of thing, strengthen the flocculating property of activated sludge；And can be used cooperatively with nitrogen source and phosphorus source, it is used cooperatively or individually
During use any adverse effect is produced all without to effluent quality.
(2) biological potentiating agent of the present invention is used to that during biochemical system stable operation system treatment effeciency can be effectively improved, biochemical
System can shorten when starting starts the time, quick-recovery sludge activity and system can normally be transported soon when biochemical system is impacted
OK.
Brief description of the drawings
Fig. 1 is the bio-synergistic effect tendency chart that embodiment 4 adds biological potentiating agent of the present invention；
Fig. 2 is the activated sludge microscopy photo that embodiment 4 adds biochemical system after biological potentiating agent of the present invention.
Embodiment
It is used to improve the processing of industrial wastewater biochemical system with reference to specific embodiment and the Figure of description contrast present invention
The biological potentiating agent of efficiency is further described.
It is prepared by biological potentiating agent
Embodiment 1
(1) after the wet thallus 15kg of waste yeast bacterium adds SDS solution destruction cell membrane, it is 0.35% to add mass ratio
Microbial cells processing product is obtained after compound protein ferment treatment thalline 5h.
(2) A agent raw material composition for microbial cells handle product 15kg, magnesium sulfate, ferrous sulfate and manganese sulfate according to
Mass ratio is 35:7:1 nutrition the salt mixture 0.5kg, OIT 0.6kg, water 83.9kg prepared.By above-mentioned raw materials successively
Add in running water, liquid A agent can be prepared after fully mixing half an hour.
(3) it is 100 that B agent preparation method, which is poly-ferric chloride with carboxymethyl cellulose according to mass ratio,:1 ratio mixes
The solid mixt arrived.
Embodiment 2
(1) waste lactic acid bacillus wet thallus 30kg is after ultrasonic destruction cell membrane, add mass ratio be 1.5% it is compound
Microbial cells processing product is obtained after Protease Treatment thalline 3h.
(2) A agent raw material composition for microbial cells handle product 30kg, magnesium chloride, ferrous sulfate and manganese sulfate according to
Mass ratio is 20:4:1 nutrition the salt mixture 1kg, glutaraldehyde 0.5kg, benzalkonium chloride 1kg, water 67.5kg prepared.By above-mentioned original
Material is sequentially added in running water, and liquid A agent can be prepared after fully mixing half an hour.
(3) it is 500 that B agent preparation method, which is bodied ferric sulfate with carboxymethyl cellulose according to mass ratio,:1 ratio mixes
The solid mixt arrived.
Effect experiment
The synergistic effect when biochemical system of embodiment 3 is impacted
The saliferous series waste water of certain oil refining enterprise, using anaerobism+aerating activated sludge process+ozone oxidation as main body processing
Technique.Due to crude quality difference used in oil refining cause influent COD fluctuation it is larger, biochemical system is highly prone to impact.It is hit
When, activated sludge concentration reduces, and biochemical segment process water outlet COD value is significantly raised.Showing when under system health and being hit
Field Inlet and outlet water water quality is as shown in table 1.
The biochemical system Inlet and outlet water water quality of table 1
From the point of view of table 1, after biochemical system is impacted, system water outlet COD value rise, beyond the design of ozone oxidation
Disposal ability, causes whole Process for Effluent exceeded and the operating cost of increase ozone oxidation due to ozone dosage also substantially rises
It is high.Activated sludge is carried out water slug in aeration tank simultaneously, and partial sludge is lost in, and sludge concentration substantially reduces.Using embodiment 1
Prepared biological potentiating agent is added to recovering to biochemical system in aeration tank, because system intakes nitrogen and phosphorus does not lack
It is weary, therefore nitrogen source and phosphorus source need not be coordinated to be recovered.Scene is two aeration tank parallel runnings, and aeration tank 1 is increased
Effect, aeration tank 2 is then as control.Biological potentiating agent is added in biochemical system water inlet, is calculated on the basis of handling water
Dosage, A agent is first added, B agent is added after 15~30min.It is as shown in table 2 that biological potentiating agent adds scheme.
The biological potentiating agent of table 2 adds scheme
| A agent | B agent | |
| The 1-3 days | 20mg/L | 0.4mg/L |
| The 4-8 days | 15mg/L | 0.2mg/L |
Synergistic effect contrasts after the water outlet result of table 3 is stable
| Detection project | COD(mg/L) | Aeration tank sludge concentration (g/L) |
| The water outlet of aeration tank 1 | 40.4 | 3.5 |
| The water outlet of aeration tank 2 | 104.7 | 2.4 |
The water outlet result of aeration tank 1 starts stabilization after synergy 13 days, and the system in the case of without synergy of aeration tank 2 is slow
Recover, water outlet result is stablized after 24 days, and water outlet result is close to system normal operating level.From aeration tank stable water outlet
Afterwards, the continuous monitoring effluent quality of 30 days and sludge concentration and matter average value is calculated, as a result as shown in table 3.By the result of table 3 Lai
See, the average COD of water outlet of aeration tank 1 is that 40.4mg/L is significantly better than control group aeration tank 2, and synergy efficiency reaches 61.1%.And
82~105mg/L of water outlet level during compared with system normal operation also has obvious reduction, greatly reduces follow-up ozone oxidation work
The processing pressure of skill, reduce operating cost.In addition, the sludge concentration after bio-synergistic of aeration tank 1 is also greatly improved, explanation
Microorganism is effectively utilized the biological potentiating agent and has obtained fast breeding, adds the treatment effeciency to waste water COD.
Synergistic effect during 4 biochemical normal operation of embodiment
The alkenes waste water of certain petroleum chemical enterprise, using pretreatment-SBR methods-second pond-technique arranged outside is handled, normally
System water outlet COD is to be floated in the range of 47~67mg/L, and the average water outlet COD value of nearly one month is 58.1.The enterprise faces dirt
The requirement of water extraction mark discharge, need to reach《Urban wastewater treatment firm pollutant emission standard》One-level A (COD≤50mg/L) standard.
Added using the biological potentiating agent prepared by embodiment 2 in SBR ponds and synergy is carried out to biochemical system treatment effeciency, synergist exists
Biochemical system water inlet is added, and dosage is calculated on the basis of handling water, first adds A agent, B agent is added after 30min.Throw
Add scheme as shown in table 4.
The biological potentiating agent of table 4 adds scheme
| A agent | B agent | |
| The 1-6 days | 15mg/L | 0.8mg/L |
| The 7-14 days | 2mg/L | 0.2mg/L |
Bio-synergistic result does not add synergist in the 1-5 days, average water outlet as shown in figure 1, monitor 40 days water outlet results altogether
COD value is 56mg/L, and data are consistent with longtime running result in sewage plant, starts within the 6th day to add synergist, water outlet COD value by
Step reduces, and the 9th day water outlet COD as little as 50mg/L, continues to add 5 days medicaments to increase the stability of outlet effect.Afterwards
Stable operation 25 days, average water outlet COD reach 36.7mg/L, and synergy efficiency is 38.4%, far below discharge standard, synergistic effect
Significantly.Meanwhile observed (Fig. 2) by microscopy, it is found that zoogloea is more closely knit, the significant of sludge maturation is indicated in activated sludge
Microorganism, such as campanularian, wheel animalcule showed increased, illustrate the biological potentiating agent can stabilized sludge structure, enrich activated sludge in
Structure of community, promote pollutant more effectively remove.
Claims (3)
1. a kind of biological potentiating agent for being used to improve industrial wastewater biochemical system treatment effeciency, it is characterised in that the biology increases
Effect agent is made up of A agent and B agent, and the A agent is formulated by following raw material according to mass percent：Microbial cells handle product
15%-30%, nutrition salt mixture 0.5%-1%, preservative agent 0.6%-1.5%, remaining as water；The B agent is flocculated for solid-state
Agent composition；
The microbial cells processing product is the wet thallus that microbial fermentation solution collects simultaneously fracturing cell walls by conventional methods
The processing product obtained after compound protease decomposes；
The nutrition salt mixture is that magnesium salts, molysite and manganese salt according to mass ratio are 20~35:4~7:1 ratio mixing mixes
Compound；
The preservative agent is the one or more in glutaraldehyde, OIT, benzalkonium chloride；
The solid-state flocculant mixture is one kind and carboxymethyl fibre in poly- phosphorus aluminium chloride, poly-ferric chloride and bodied ferric sulfate
Dimension element is 500~1000 according to mass ratio:The mixture of 1 ratio mixing.
2. the biological potentiating agent according to claim 1 for being used to improve industrial wastewater biochemical system treatment effeciency, its feature
It is, the mass percent of the compound protease and wet thallus is 0.35~1.5:100.
3. with application of the biological potentiating agent described in claim 1 in industrial wastewater biochemical system, it is characterised in that the life
Thing synergist adds according to the method for being used as described below：Added in industrial wastewater biochemical system water inlet, first add A agent, 15~
B agent is added after 30min, wherein A agent dosage is daily 2-20mg/L, is added 7-30 days；B agent dosage is daily 0.2-
0.8mg/L, add 3-6 days.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2017106028061 | 2017-07-21 | ||
| CN201710602806 | 2017-07-21 |
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| CN107804917A true CN107804917A (en) | 2018-03-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862845A (en) * | 2018-07-03 | 2018-11-23 | 南京云实环境科技有限公司 | A kind for the treatment of of dyeing/printing wastewaters, preparation method and its treatment process |
| CN111675297A (en) * | 2020-06-13 | 2020-09-18 | 上海甚恒生物科技有限公司 | Composite flocculant for sewage treatment and use method thereof |
| CN112174438A (en) * | 2020-10-14 | 2021-01-05 | 王长青 | Distributed sewage treatment equipment applying biological agent and treatment process thereof |
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2017
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| CN104150611A (en) * | 2014-08-28 | 2014-11-19 | 河北嘉诚环境工程有限公司 | Sewage treatment method for coping with industrial wastewater impact in municipal wastewater plant |
| WO2016139377A1 (en) * | 2015-03-03 | 2016-09-09 | Acciona Agua, S.A.U. | Biological pretreatment method for hydrolysis processes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862845A (en) * | 2018-07-03 | 2018-11-23 | 南京云实环境科技有限公司 | A kind for the treatment of of dyeing/printing wastewaters, preparation method and its treatment process |
| CN111675297A (en) * | 2020-06-13 | 2020-09-18 | 上海甚恒生物科技有限公司 | Composite flocculant for sewage treatment and use method thereof |
| CN112174438A (en) * | 2020-10-14 | 2021-01-05 | 王长青 | Distributed sewage treatment equipment applying biological agent and treatment process thereof |
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Address after: 300131 No. three, No. 85, Tianjin Road, Hongqiao District, China Applicant after: CNOOC TIANJIN CHEMICAL RESEARCH & DESIGN INSTITUTE CO., LTD. Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: CNOOC Energy Development Co., Ltd. Address before: 300131 No. three, No. 85, Tianjin Road, Hongqiao District, China Applicant before: CNOOC TIANJIN CHEMICAL RESEARCH & DESIGN INSTITUTE CO., LTD. Applicant before: China National Offshore Oil Corporation Applicant before: CNOOC Energy Development Co., Ltd. |
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Application publication date: 20180316 |