CN104609536B - A kind of method for starting high-salt wastewater aerobic treatment system - Google Patents
A kind of method for starting high-salt wastewater aerobic treatment system Download PDFInfo
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- CN104609536B CN104609536B CN201310540296.1A CN201310540296A CN104609536B CN 104609536 B CN104609536 B CN 104609536B CN 201310540296 A CN201310540296 A CN 201310540296A CN 104609536 B CN104609536 B CN 104609536B
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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
- C02F3/12—Activated sludge 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
- 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
- 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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- 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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- 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
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
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Abstract
The present invention is a kind of method for starting high-salt wastewater aerobic treatment system, it is characterised in that：Seawater, ooze, salt lake, salt water lake, salt-soda soil, curing food, halmeic deposit, soil or other hypersaline environment samples are inoculated with to the biochemical treatment system of high-salt wastewater, directly carried out in the salt concentration range of the high-salt wastewater from cultivation, until influent load and biomass reach the design load of the high-salt wastewater biochemical treatment system.The present invention directly initiating for the biochemical treatment system of 1~25% high-salt wastewater suitable for salinity.
Description
Technical field
The invention belongs to wastewater biochemical processing technology field, and in particular to one kind starts high-salt wastewater aerobic treatment system
Method.
Background technology
High-salt wastewater refers to the waste water of TDS >=1%, and its source is more wide, belongs to social life, industrial or agricultural, business process
A middle yield very big class waste water.The direct discharge of high-salt wastewater, can cause salinization of soil, the salinity of water of river and lake in soil
The ecological environment problems such as increase, soil pollution, water pollution.Seek cost-effective treatment technology, be always high-salt wastewater processing
Technical barrier.
In wastewater processing technology, biochemical processing has the features such as treatment effeciency is high, economic friendly, management facilitates, should
With most universal.But, poisoned or inhibitory action because high concentration inorganic salts have to common micro-organisms cell, biochemical process is in high salt
Application in wastewater treatment is by significant limitation.For a long time, vast environment-friendly engineering technical staff is it is even contemplated that biochemical process
It cannot be used for the processing of high-salt wastewater.Nevertheless, relevant high-salt wastewater biochemical processing have tried to never stop.
The startup method of Normal wastewater biochemical treatment system, mainly has inoculation cultivation and from cultivation two ways.Inoculation training
Bacterium method is to turn out activated sludge or life using a small amount of culturing sludge activated sludge or biomembrane from other sewage treatment plants
Thing film process waste water；It is to utilize original a small amount of microorganism in waste water from cultivation rule, progressively breeds and turn out activated sludge
And biomembrane, make it have the ability of processing waste water.Contrast the startup method of common biochemical system, some investigators and engineering
Technical staff has carried out the exploration about high-salt wastewater biochemical treatment.Up to the present, for high-salt wastewater biochemical treatment system
The method directly initiated is mainly inoculation cultivation, according to the difference in its inoculation source, can be subdivided into following three kinds：
（1）It is inoculated with ordinary activated sludge and carries out salinity domestication：First passed through in start-up course from cultivation or inoculation and match somebody with somebody bacterium
Mode turns out activated sludge or biomembrane, then by stepping up the method into water salinity, make ordinary activated sludge or
Biomembrane progressively adapts to the salt environment of high-salt wastewater, obtains certain salt resistance ability.The high-salt wastewater life obtained using this method
Change processing system, resistance to salinity is typically up to no more than 3~5%, and treatment effeciency is not high, and salt resistance degree impact capacity is very poor.
（2）It is inoculated with Halophiles：The Halophiles bacterium being directly separately cultured from hypersaline environment and a large amount of amplification cultivations are obtained
Agent input high-salt wastewater biochemical treatment system is carried out from cultivation.Halophiles has the energy that normal growth is metabolized under hypersaline environment
Power, is considered as the microorganism relied on needed for high-salt wastewater biochemical treatment may succeed always.But the thermophilic salt of this method inoculation
Strain class is relatively simple, and generally requires to retain microorganism by means of modes such as carrier, films, otherwise easily goes out in implementation phase
Existing microbial biomass leakage.This method is still mainly in the laboratory research stage at present, and engineering successful case is seldom.
（3）Halophiles is inoculated with into activated Sludge System：First passed through in start-up course from the side of cultivation or inoculation with bacterium
Formula turns out activated sludge or biomembrane, is then inoculated with the Halophiles for being separately cultured and obtaining from hypersaline environment, belongs to biological strong
One kind of change method.This method can improve the salt resistance ability of biochemical treatment system, and the effect compared with salinity domestication method is good, processing
Effect is relatively stablized.But, it is limited to that the type and quantity and its salt resistance ability of Halophiles, organic matter degradation can be inoculated with
Need to put into substantial amounts of manpower and materials in ability and impact resistance, actual moving process and system is safeguarded, it is final
Treatment effect is identical with directly inoculation Halophiles, if desired maintains treatment effect, generally requires repeatedly to add microbial inoculum, add pipe
The complexity of operation is managed, longtime running effect allows of no optimist.
Therefore, although pilot study of the inoculation cultivation in the start-up course of high-salt wastewater biochemical treatment system is more general
Time, but effect is not fully up to expectations；And have successful report from cultivation is then rarely found.
The content of the invention
The problem to be solved in the present invention is to start in view of the shortcomings of the prior art there is provided one kind at high-salt wastewater aerobic biochemical
The method of reason system, enables high-salt wastewater aerobic treatment system to directly initiate, and the biochemical system after starting successfully
Handling high-salt wastewater has stable effect and powerful salt resistance degree impact capacity.
Salt-durable microbe of the present invention, including weak halophilic microorganism on microbial taxonomy, medium halophilic microorganism,
Extreme halotolerant microorganism and salt-durable microbe, include bacterium, fungi, ancient bacterium and the protozoan of salt tolerant or thermophilic salt.
The present invention principle and thinking be：
It is a kind of method that biochemical treatment of wastewater starts from cultivation, and can once successfully starts up, it is to waste water
Treatment effect often better than inoculation cultivation method, its basic reason be from cultivation obtain micropopulation completely with waste water
Organic pollution is that carbon source and the energy are bred and grown, and only treatment effect is best and multiplication capacity most strong microorganism
Group could obtain competitive advantage.The micropopulation that inoculation cultivation is obtained is mainly original micropopulation, in start-up course experience
The domestication process of waste water and obtain the adaptation to waste water and disposal ability, therefore the population composing of micropopulation is also not reaching to most
Excellent state.Therefore, for the biochemical treatment of high-salt wastewater, if can in theory should using being successfully started up from cultivation
The salt-durable microbe group with very strong salt resistance ability and contaminant degradation ability can be obtained.But, high salt different from Normal wastewater
The surrounding enviroment that waste water is produced are generally low-salt environment, cause the salt-durable microbe type and quantity in high-salt wastewater all few, very
To not having.This is to cause to carry out being difficult to successful major reason from cultivation in itself using high-salt wastewater.
In decades, the effort of inoculation Halophiles processing high-salt wastewater does not obtain obvious success, thus sewage always
Processing circle has gradually formed a kind of common recognition：High-salt wastewater should not use direct biochemical treatment；3~5% are no more than for salinity
High-salt wastewater, can be started by salinity domestication；But, it is necessary to be run under relatively low load after starting successfully.Greatly
Many environmental protection engineers and technicians and scientific research personnel think so deeply to this view, are also reluctant to take chances, which greatly limits
The exploration for high-salt wastewater biochemical treatment system from cultivation start.Halophiles have under hypersaline environment degradation of organic substances and
The ability not suppressed by high concentration inorganic salts, but its not good basic reason of practical application effect for a long time, are thermophilic salt
Bacterium inoculation method be inoculated with Halophiles, be it is enriched from environment cultivate, isolate and purify, Physiology and biochemistry identification, fermentation train
Support and obtain, not only step is numerous and diverse for this process, workload big, and is difficult to ensure that after laboratory passage culture, Halophiles
Salt resistance ability, organic matter degradation ability and waste water adaptability etc. continue to keep；It is additionally, since operational complexity so that real
The limitednumber for the Halophiles that can be inoculated with the application process of border, it is difficult in the complicated stabilization of formation one from course of cultivating the microorganism
Salt-durable microbe system, it is exactly that water resistant matter impact capacity and salt resistance degree impact capacity are very poor that it, which is directly showed,.
Inoculation processing high-salt wastewater is carried out again by separating pure culture Halophiles is difficult to another successful reason,
It is that can only obtain the only a few of environmental microorganism because of isolated culture method, it is same for salt-durable microbe.Due to existing
Under technical conditions, most of microbe can't be separated and pure culture so that the species for the Halophiles that isolated culture is obtained
It is all limited with physiological function.In fact, including in the environment including general biochemical method, microorganism is mostly with syntrophism, altogether symbiosis, generation
The mode such as thank to survive, organic pollution also needs just be degraded by the synergy of multiple-microorganism mostly.
Ocean is most typical hypersaline environment in the world, and its area is more several times greater than land.The history of forming of ocean has tens
100000000 years, long-term natural selection and evolution made to be dispersed with rich and varied salt-durable microbe and halophilic microorganism group in ocean, this
Biology can carry out normal growth metabolism without being suppressed by inorganic salts under hypersaline environment slightly.In recent years, the micro- life in ocean
Bioecology investigation find, the diversity of marine microorganism, far beyond the estimation of people originally, wherein can't be separated and
The microbial species number of pure culture exceedes the 99% of marine microorganism kind number.The present inventor is by a large amount of investigation and tests, final to determine
Salt-durable microbe group in marine environment is introduced into high-salt wastewater biochemical treatment system, lacked in itself for supplementing high-salt wastewater
Salt-durable microbe Stock resoures, so can directly realize directly opening for high-salt wastewater biochemical treatment system under hypersaline environment
It is dynamic.Certainly, the present inventor confirms also by lot of experiments, can be by salt water lake, salt lake, salt-soda soil, salt field, soil or other
Salt-durable microbe group in hypersaline environment introduces high-salt wastewater biochemical treatment system and directly initiated.
The present invention not to separate the pure bacterial strain of salt-durable microbe and halophilic microorganism as means or purpose, but by seawater or
Ooze introduces the biochemical treatment system of high-salt wastewater, is directly carried out under the salinity environment of high-salt wastewater from cultivation.From cultivation
During biochemical system salinity all the time in high-salt wastewater salt concentration range to be dealt with.It is suitable organic by providing
Carbon source, nutrient and environmental condition, make to can adapt to the salt-durable microbe of provided hypersaline environment progressively in seawater or ooze
Propagation, gradually turns out the activated sludge or biomembrane of the salt tolerant needed for high-salt wastewater biochemical treatment, finally realizes high-salt wastewater
Biochemical treatment system is directly initiated.
The technical problems to be solved by the invention are realized by following technical scheme.The present invention is a kind of startup
The method of high-salt wastewater aerobic treatment system, is characterized in：Inoculation seawater, ooze, salt lake, salt water lake, salt-soda soil, pickle
Product, halmeic deposit, normal soil or other hypersaline environment samples to high-salt wastewater biochemical treatment system, directly in the height
Carried out in the salt concentration range of salt waste water from cultivation, until influent load and biomass reach the high-salt wastewater biochemical treatment system
The design load of system.
Hypersaline environment described in the inventive method, including following three class：
（1）Natural hypersaline environment：Ocean, the Dead Sea, salt lake, salt pan, salt-soda soil, salt mine, subsurface brine etc..These high salt rings
Border forms that the time is longer, and salt-durable microbe species highly is enriched, the salt resistance ability of microorganism by force, salt-durable microbe population with it is residing
The actual salt content and other environmental characteristics of hypersaline environment are adapted.
（2）Semi-natural hypersaline environment：Salt field, salt-soda soil, curing food, the high-salt wastewater of long-term storage, high-salt wastewater are dirty
Soil, river, lake of dye etc..The time of these hypersaline environments formation is different in size, and salt environment feature can change.
（3）Soil：Agricultural land soil, grassland soil, forest soil etc..Soil environment entirety salt content is not high, but due to soil
The anisotropism of earth environment, and the effect such as Drought-wet change, mineralising, weathering, leaching long-term existence so that deposited in soil environment
In a large amount of local hypersaline environments, this domain hypersaline environment slightly is enough to support the existence of various salt-durable microbes.
In the method and technology scheme of the present invention for starting high-salt wastewater aerobic treatment system, technical side preferably
Case or technical characteristic are：
1. can be using synchronous training method, all the time using the high-salt wastewater as from main organic needed for cultivation from cultivation
Carbon source；Or use beyond asynchronous training method, elder generation plus organic carbon source progress cultivation, then again using the high-salt wastewater to be organic
Carbon source continues cultivation.
2. from cultivation starting stage, the high-salt wastewater biochemical treatment system influent COD≤500mg/L or described high salts
COD≤500mg/L in biochemical treatment of wastewater.
3. the one or more in N, P or other nutrient can be added on demand from course of cultivating the microorganism.
4. activated sludge or the life of salt tolerant are obtained by being cultivated from cultivation in the biochemical treatment system of the high-salt wastewater
Thing film.
5. from course of cultivating the microorganism, 5~55 DEG C of temperature in high-salt wastewater biochemical treatment system, preferably 15 ~ 35 DEG C, pH 5.0~
9.5, preferential 7.5 ~ 8.5,0.1 ~ 4.0mg/L of dissolved oxygen, preferably 0.5 ~ 2.0mg/L.
6. described in the preferred B/C ＞ 0.3 of high-salt wastewater, or B/C ＞ 0.3 after pretreatment.
7. described in high-salt wastewater salinity preferably in the range of 1~25%.
Technical solution of the present invention is further elaborated below.
Technical solution of the present invention be substantially by provide suitable organic carbon source, nutrient, temperature, pH, dissolved oxygen and
The condition of other suitable salt-durable microbe growth and breedings, make under high salt conditions in seawater or ooze salt-durable microbe group progressively
Breeding, and ultimately form of certain scale and number concentration salt-durable microbe aggregation --- salt tolerant activated sludge or salt tolerant
Biomembrane.This process is similar to the principle that biochemical treatment of wastewater under general condition is followed from cultivation, except that this
Invention is direct and is carried out all the time under hypersaline environment from cultivation, and conventional biochemical processing system is carried out under low-salt environment from training
Bacterium.
Most of high-salt wastewaters, especially high salt industrial wastewater, wherein not only lacking salt-durable microbe, also lack salt tolerant micro-
Nutritional ingredient needed for biological growth.Therefore the present invention is implemented for such waste water, except needing inoculation seawater or ooze conduct
Salt-durable microbe is originated, in addition it is also necessary to various nutrients and trace element that supplement may lack.In the case where condition possesses,
Seawater directly can be filled into whole high-salt wastewater biochemical treatment apparatus, the salt for diluting or increasing to the high-salt wastewater by salinity is dense
Scope is spent, and activated sludge and the previous direct subsidy filling sea water of biomembrane are being obtained from cultivation from cultivation.Advantage of this is that can
Contained various trace elements are made full use of in seawater, N, P need to be only supplemented, and required for can saving preparation salt solution
Manpower and materials.Under many circumstances, the condition that a large amount of seawater are filled to biochemical treatment apparatus is not had, and is needed first in life
Preparation salt solution is put in makeup, and then the salinity of the salt solution is inoculated with seawater, ooze or other in the high-salt wastewater salt concentration range
Hypersaline environment sample, supplements N, P and other nutrients and trace element, then start from cultivation on demand.
Certain cycle is needed from cultivation, it is therefore necessary to possess patience.It is abundant in organic carbon source abundance, nutriment supply
In the case of, carry out can tentatively turning out the activated sludge and biomembrane of salt tolerant in 2~3 weeks from cultivation, hereafter step up
High-salt wastewater influent load, is finally completed the startup of whole biochemical system.
Organic pollution in high-salt wastewater can be divided into degradable, poisonous degradable, difficult degradation, poisonous difficult degradation this four
Class.The occasion that high-salt wastewater is produced, in addition to seawater utilization, comes from industrial production mostly.Therefore, except a part of high-salt wastewater has
There is preferable biodegradability, most of high-salt wastewater all contains poisonous or compared with difficult degradation material.Therefore, application claims are implemented
High-salt wastewater has certain biochemical, toxicity not high.It is generally acknowledged that B/C ＞ 0.3 waste water can directly carry out biochemistry, this hair
It is bright it is also preferred that this condition.If the biochemical of waste water is not good, it is necessary to first take other technological means processing, raising biochemical.
For B/C ＞ 0.3 high-salt wastewater, organic pollution therein, which can also be divided into, to be very easy to degraded and can delay
Slowly degrade.Therefore, from course of cultivating the microorganism, if the biodegradability of high-salt wastewater is very good, such as pickling waste water, food industry
High-salt wastewater, just can be used as the main organic carbon source from cultivation since cultivation using high-salt wastewater；If high-salt wastewater
Biodegradability is general, such as Fine Chemistry Wastewater, pharmacy waste water, to accelerate the progress from cultivation, can be from the initial of cultivation
Stage adds the organic carbon source that some are easily degraded, such as glucose, flour, methanol, big liquid dung, sludge-digestion liquid etc. are waited to train
The activated sludge and biological thickness of salt tolerant are raised, then starts the source using high-salt wastewater as organic carbon, and culture behind
During be stepped up the water inlet ratio of high-salt wastewater, reduction additional carbon and add ratio.That is, in present invention implementation
During, synchronous culture and asynchronous culture two ways can be at least divided into from cultivation.
In implementation process of the present invention, especially from the micro organism quantity in the cultivation starting stage, biochemical treatment system
Also considerably less, it is desirable to which that influent COD can not be too high, COD can not be too high in biochemical system in other words.It is of the invention smoothly real from being conducive to
COD≤500mg/L is necessary in the angle applied, control high-salt wastewater biochemical treatment system influent COD≤500mg/L or system
's.Under possible operating condition, the influent COD that the starting stage is relatively low is maintained, then according to the salt tolerant turned out from cultivation
The amount of activated sludge or biomembrane, steps up COD concentration in influent COD or system, is conducive to successful implementation of the present invention.
The present invention is used as salt-durable microbe source inoculum using seawater or ooze.In fact, on the earth hypersaline environment except
Ocean also includes salt water lake, salt lake, salt mine, salt well, solarization salt pond, salt-soda soil.In addition, normal soil also has micro- domain hypersaline environment
Feature.Therefore, in addition to seawater and ooze, the present invention can using be derived from soil under above-mentioned hypersaline environment, water sample, deposit or
Other various forms of samples are added in high-salt wastewater biochemical treatment apparatus as salt-durable microbe source, thereafter from cultivation
Operation is then similar.
The enforceable temperature range of the present invention is generally 10~50 DEG C, within the scope of higher or lower temperature, also may be used
With implementation success.Temperature influence microorganism metabolism and proliferative speed, it is thus possible in the case of enter at a higher salt concentration
Row startup can shorten the startup cycle.In start-up course, stablizing relatively for temperature is also advantageous that condition.
The pH that the present invention is implemented ranges preferably from 5.0~9.5.Compared with common micro-organisms, the height of salt-durable microbe existence
Salt environment is generally alkalescent.For example, the pH of seawater is 7.9~8.4, it is most with the quantity of weak salt alkali lake in salt lake.Numerous studies
Also confirm that, the microorganism of most of salt tolerants and thermophilic salt grows best under weakly alkaline environment.The present inventor in research process,
It was found that in the environment of neutral meta-alkali, the general effect that the present invention is implemented is better than the environment of neutral meta-acid.Therefore, the present invention was implemented
Further preferred pH is 7.5~8.5 in journey.
It is used as salt-durable microbe by introducing seawater, ooze or other hypersaline environment samples to originate, directly in high-salt wastewater
Carried out in biochemical treatment apparatus by environmental condition of the salinity of high-salt wastewater from cultivation.Turning out salt tolerant activated sludge or resistance to
After one kind of salt biomembrane, step up high-salt wastewater influent load and continue to cultivate, make salt tolerant activated sludge or salt tolerant biomembrane
Biomass concentration increase, until influent load and biomass concentration all reach design requirement, just complete high-salt wastewater life
Change the startup of processing system.
The enforceable high-salt wastewater salt concentration range of the present invention is preferably 1~25%.Salt-durable microbe is in very wide salinity
In the range of scope can growth and breeding, divided from microbial taxonomy：Weak halophilic microorganism salt tolerant scope be 1.17 ~
11.7%, medium halophilic microorganism salt tolerant scope 2.34 ~ 20.48%, extreme halotolerant microorganism salt tolerant scope is 8.19 ~ 30.42%,
Salt-durable microbe salt tolerant scope is 0 ~ 14.63%.Therefore, to be handled for the high-salt wastewater biochemical treatment system to be started
High-salt wastewater salt concentration range, select suitable microbe inoculation source more crucial.When the salinity of high-salt wastewater is very high,
For example, more than 20%, optimal microbial inoculant source now is the suitable salt lake of salinity.But, according to the reality of the present inventor
From the point of view of trampling, inoculation seawater or ooze equally can equally realize that high salt is given up under ＞ 20% salt environment from cultivation success
The startup of water biochemical treatment system, this is probably due to briny environment although salinity is relatively low, but still exists a large amount of extremely thermophilic
Salt microorganism, this about the result studied also with being consistent.
Compared with prior art, beneficial effects of the present invention are as follows：
（1）The inventive method directly starts without screening and separating Halophiles to high-salt wastewater biochemical treatment system,
It is particularly suitable for the debugging of actual high-salt wastewater biochemical treatment apparatus；
（2）The inventive method only need to undergo one from hypersaline environment sample to the startup of high-salt wastewater biochemical treatment system
Step, operating procedure and implementation cycle greatly shorten.
（3）The present invention is directly opening for 1~25%, biochemical treatment system of B/C ＞ 0.3 high-salt wastewater suitable for total salt
It is dynamic；
（4）The high-salt wastewater biochemical treatment system started using the inventive method, can be carried out stable high to high-salt wastewater
The processing of effect.
Embodiment
Present invention is illustrated below in conjunction with specific embodiment, in order to which those skilled in the art enter to the present invention
One step understands.
Embodiment 1, a kind of method for starting high-salt wastewater aerobic treatment system, inoculation seawater, ooze salt lake, salt water
The biochemical treatment system of lake, salt-soda soil, curing food, halmeic deposit, normal soil or other hypersaline environment samples to high-salt wastewater
System, is directly carried out from cultivation in the salt concentration range of the high-salt wastewater, until influent load and biomass reach the height
The design load of salt biochemical treatment of wastewater.
In embodiment 2, the method described in embodiment 1：From cultivation using synchronous training method, all the time with the high-salt wastewater
For from the main organic carbon source needed for cultivation；Or use beyond asynchronous training method, elder generation plus organic carbon source progress cultivation, then
Continue cultivation by organic carbon source of the high-salt wastewater again.
In embodiment 3, the method described in embodiment 1 or 2：Add N, P or other nutrition member on demand from course of cultivating the microorganism
One or more in element.
In embodiment 4, the method described in embodiment 1 or 2 or 3：By from cultivation the high-salt wastewater biochemical treatment
Salt tolerant activated sludge or salt tolerant biomembrane are obtained in system.
In embodiment 5, the method described in embodiment 1-4 any one：From in course of cultivating the microorganism, high-salt wastewater biochemical treatment
5~55 DEG C of temperature in system, pH 5.0~9.5,0.1 ~ 4.0mg/L of dissolved oxygen.
In embodiment 6, the method described in embodiment 1-5 any one：From in course of cultivating the microorganism, high-salt wastewater biochemical treatment
15 ~ 35 DEG C of temperature in system, pH 7.5 ~ 8.5,0.5 ~ 2.0mg/L of dissolved oxygen.
In embodiment 7, the method described in embodiment 1-6 any one：The B/C ＞ 0.3, Huo Zhejing of the high-salt wastewater
B/C ＞ 0.3 after pretreatment.
In embodiment 8, the method described in embodiment 1-7 any one：The salinity of the high-salt wastewater is in 1~25% model
In enclosing.
Embodiment 9, a kind of methods experiment for starting high-salt wastewater aerobic treatment system：
Certain wastewater from chemical industry, salt content is 3~6%NaCl, 3000~5000mg/L of COD, 50~200mg/L of phenol content.It is raw
Chemical industry skill batch (-type) aerobic process.In 6L plexi glass devices, 6L seawater is injected, glucose and phenol, concentration point is added
Wei not 50mg/L and 10mg/L, addition urea and potassium dihydrogen phosphate extra-nutrition.Start to be aerated 48h, aeration process at normal temperatures
Middle control dissolved oxygen DO ＜ 5.0mg/L.Then 2h is stood, 1/2 supernatant is discharged, seawater is supplemented, glucose, phenol, urine is added
Element and potassium dihydrogen phosphate, it is 15mg/L that concentration of glucose, which is improved to 100mg/L, phenol concentration, continues to be aerated 24h.In this way,
The concentration for changing aqueous humor glucose and phenol is stepped up, can be observed have flco appearance in device, now control water inlet F/M ＜
1.0.Continue to cultivate 3d, be able to observe that good settling property obtains active pollution index, now started to contain into the actual high salt
It is aerated 6h in phenol waste water, initial inflow 1/10, a cycle, stands, draining and water inlet 2h, then according to effluent index and is
System situation steps up inflow.By 10~20 cycles, inflow brings up to 1/2, and sludge concentration increases to 4000~
6000mg/L, water outlet COD ＜ 500mg/L, phenol ＜ 0.5mg/L.
Embodiment 10, a kind of methods experiment for starting high-salt wastewater aerobic treatment system：
Certain wastewater from chemical industry, 6~12%Na of salt content2SO4, COD 2000~3000mg/L, B/C ＞ 0.4.
In 1000m3Aeration tank in, introduce seawater 500m3, introduce waste water 50m3, add urea 1.0kg, potassium dihydrogen phosphate
0.3kg, starts aeration, first aeration time 72h.Then waste water 50m is added3, urea 1.0kg, potassium dihydrogen phosphate 0.3kg,
It is aerated 24h；So being continuously added waste water to aeration tank fills 1000m3, change continuum micromeehanics mode, second pond is entered in water outlet, and sludge is returned
It flow to aeration tank.Intake per hour 40m3, wherein entering waste water 4m3, remaining is seawater.So one section of influent waste water is diluted with seawater
Time, second pond has flco to occur and can settle.Then, the ratio of seawater in water inlet is improved to 1/5, i.e., intake per 1h
40m3, wherein waste water 8m3.Thus by improving constantly waste water proportion in water inlet, in aeration tank, sludge concentration culture is extremely
More than 4000mg/L, and keep F/M ＜ 1.0, pH in whole incubation to be 7.0~8.5, DO ＞ 2.0mg/L.By 1~2 month
Salt tolerant culturing sludge and startup, system to waste water can stablize handle, COD clearances ＞ 90%, water outlet COD ＜ 300mg/L.
Embodiment 11, a kind of methods experiment for starting high-salt wastewater aerobic treatment system：
Waste water is same as Example 2, and handling process is hydrolysis acidification-aerobic.As different from Example 3, the present embodiment
Activated sludge first is turned out certainly using flour or glucose in aeration tank, hydrolysis acidification pool is then seeded into, adds flour, grape
Sugar or the waste water are started, and are turned out with halophilic hydrolysis acidification activated sludge.Then the actual waste water is sequentially passed through
Hydrolysis acidification pool and Aerobic Pond are handled.According to the method, COD clearances ＞ 95%, water outlet COD ＜ 100mg/L.
Embodiment 12, a kind of methods experiment for starting high-salt wastewater aerobic treatment system：
Certain chloro alcali wastewater, salt content 16~26%, COD ＞ 10000mg/L.
In 200L SBR devices, 20% NaCl salt solution 200L are prepared, the lake bed sediment for being derived from Qinghai salt lake is added
Leachate 10L, add urea, potassium dihydrogen phosphate and trace element, adding glucose makes TOC be 100~200mg/L.It is stingy
Amount is vexed to expose 48~120h of culture, then stands, takes part supernatant to survey solvable TOC.
Solvable TOC ＜ 30mg/L, TN ＞ 1.0mg/L, TP ＞ 0.1mg/L in solution turned cloudy, and supernatant in device, stop
Only it is aerated, stands and 1/3 supernatant is discharged after 2h, supplements seawater.Continuously add glucose, urea and potassium dihydrogen phosphate, aeration training
Support 24h, control dissolved oxygen 2.0 ＜ DO ＜ 5.0mg/L.So continue to cultivate, adding for glucose is gradually increased according to 20% ratio
Enter amount.Until there is obvious biological floe, and MLSS ＞ 500mg/L are measured, start to reduce the addition of glucose, and add
A small amount of waste water, and waste water addition, according to 20~30% ratio increase, it is 0.2~0.5 to make F/M.In this way, control incubation
Middle pH be 7.5~8.5, temperature be 20~35 DEG C, dissolved oxygen be 1.0~4.0mg/L.By 60~180d culture, sludge is dense
Degree culture all enters actual waste water to 4000~6000mg/L.
The high slat-containing wastewater, TOC clearances ＞ 80% are handled using the above method.Life is returned after bio-chemical effluent is oxidized
The processing of change system, can finally make TOC of yielding water ＜ 200mg/L.
Embodiment 13, a kind of methods experiment for starting high-salt wastewater aerobic treatment system：
Certain pickling waste water, saliferous is 4~6%NaCl, and COD is 4000~5000mg/L.Handling process is+3 grades of anaerobic hydrolysis
Aerobic+coagulating sedimentation, water 50m3/d, its mesophytization section anaerobic pond residence time 10h, Aerobic Pond residence time 60h.It starts
Process is：
Aerobic Pond fills the 5%NaCl aqueous solution, adds the mud 5m of seashore black3, regulation pH is 7.0~8.0, normal temperature
Under vexed exposure 48h.Regulating reservoir prepares the water that salinity is 5%NaCl, and adding glucose and waste water makes COD ＜ 200mg/L.By 2m3/h
Flow velocity into Aerobic Pond be aerated, mixed liquor is after second pond mud-water separation, sludge reflux to Aerobic Pond, by 10d's or so
Aeration, can turn out sludge.Thus increase the amount into aqueous humor glucose and waste water, protected when influent COD increases to 2000mg/L
The stabilization of influent COD is held, until Aerobic Pond sludge concentration ＞ 3000mg/L.Now, the sludge of part second pond is transferred to and detested
Oxygen hydrolysis pond, inoculum density is not less than 2000~5000mg/L.Now regulating reservoir waste water first passes through anaerobic fixed film reactor, then enters again
Aerobic Pond.
Claims (5)
1. a kind of method for starting high-salt wastewater aerobic treatment system, it is characterised in that：Be inoculated with seawater, it is ooze, salt lake, salty
Water lake, salt-soda soil, curing food, halmeic deposit, soil or other hypersaline environment samples to high-salt wastewater biochemical treatment system,
Directly carried out in the salt concentration range of the high-salt wastewater from cultivation, until influent load and biomass reach that the high salt is given up
The design load of water biochemical treatment system；
From the cultivation starting stage, in high-salt wastewater biochemical treatment influent COD≤500mg/L or high-salt wastewater biochemical treatment system
COD≤500mg/L；
From in course of cultivating the microorganism, 5~55 DEG C of temperature in high-salt wastewater biochemical treatment system, pH 5.0~9.5, dissolved oxygen 0.1~
4.0mg/L；
The B/C ＞ 0.3 of the high-salt wastewater, or B/C ＞ 0.3 after pretreatment；
The salinity of the high-salt wastewater is in the range of 1~25%.
2. according to the method described in claim 1, it is characterised in that：From cultivation using synchronous training method, all the time with the height
Salt waste water is from the main organic carbon source needed for cultivation；Or use asynchronous training method, beyond elder generation plus organic carbon source carry out from
Cultivation, then continues cultivation by organic carbon source of the high-salt wastewater again.
3. according to the method described in claim 1, it is characterised in that：Add N, P or other nutrition on demand from course of cultivating the microorganism
One or more in element.
4. according to the method described in claim 1, it is characterised in that：By from cultivation the high-salt wastewater biochemical treatment system
Culture obtains the activated sludge or biomembrane of salt tolerant in system.
5. according to the method described in claim 1, it is characterised in that：From in course of cultivating the microorganism, in high-salt wastewater biochemical treatment system
15~35 DEG C of temperature, pH 7.5~8.5,0.5~2.0mg/L of dissolved oxygen.
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