CN104609541B - The direct biochemical processing method of a kind of decanedioic acid not desalination of waste water - Google Patents
The direct biochemical processing method of a kind of decanedioic acid not desalination of waste water Download PDFInfo
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- CN104609541B CN104609541B CN201310540078.8A CN201310540078A CN104609541B CN 104609541 B CN104609541 B CN 104609541B CN 201310540078 A CN201310540078 A CN 201310540078A CN 104609541 B CN104609541 B CN 104609541B
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Abstract
The present invention is the direct biochemical processing method of not desalination of a kind of decanedioic acid waste water, and the method is stored open decanedioic acid waste water at normal temperatures and carries out ageing; Directly under 5～15% condition, cultivate the aerobic flora of salt tolerant and salt tolerant hydrolysis acidification flora at sodium sulphate content taking this ageing waste water, finally obtain salt tolerant aerobic activated sludge and salt tolerant hydrolysis souring activity mud; Inoculate above-mentioned mud, with " hydrolysis acidification+aerobic " technique, decanedioic acid waste water is directly processed, make hydrolysis acidification pool and Aerobic Pond F/M be respectively 0.1～0.4 and 0.2～1.0, can, under water inlet sodium sulphate 5～15%, COD < 5000mg/L, volatile phenol < 200mg/L condition, make bio-chemical effluent COD < 100mg/L, volatile phenol < 0.5mg/L. The invention solves the difficult problem that traditional biochemical method can not directly be processed decanedioic acid waste water, significantly reduce cost for wastewater treatment with respect to techniques such as evaporations.
Description
Technical field
The present invention relates to a kind of processing method containing high sodium sulphate industrial wastewater, specifically one is produced decanedioic acidWaste water is not diluting the method for direct biochemical treatment under not desalination condition.
Background technology
Decanedioic acid is a kind of important valency industrial chemicals that has, and is widely used in production engineering plastics, fire-resistant lubricants, epoxyResin curing agent, sebacic anhydride, synthetic lubricant fluid, alcohol phenol resin, mylar, Glass Fiber Reinforcement, cosmetics etc. ChinaBe the country of decanedioic acid output maximum in the world, mainly adopt the cracking process production technology taking castor oil as raw material at present, per tonProduct need consume 150～250kg phenol, produces 25～40 tons of waste water, and wherein phenol content is that 2000～5000mg/L, pH are 2～3, sodium sulphate content is 6～10%, COD content is 10000～20000mg/L. Decanedioic acid waste water belongs to high salt, high phenol, high CODWaste water; According to estimates, the decanedioic acid enterprise of a 40000t/a produces 1,500,000 tons/a of waste water, if this waste water does not improve processing,Can cause severe contamination to environment.
The method of at present industrial main employing extraction or absorption is processed decanedioic acid waste water, can remove in waste waterMost of phenols, even make phenol up to standard, but still deficiency is so that waste water quality is completely up to standard. For example: utilize castor oil acid to the last of the ten Heavenly stems twoAcid waste water extracts, and extraction progression is more than 8 grades, though need not carry out back extraction, water average COD > 4000mg/L, phenol > after extraction50mg/L; Utilize secondary octanol as extractant, water COD > 2000mg/L after extraction, phenol concentration is greater than 50mg/L; Utilize QH-1 type networkClose extraction and can make Phenol for Waste Water content be down to below 10mg/L, but raffinate COD > 1000mg/L. Therefore, make decanedioic acid uselessWater treatment is up to standard, must further process the waste water after extraction, and main method comprises advanced oxidation and biochemical treatment, comparesIf energy biochemical treatment, will have cost advantage.
But sodium sulphate content, up to 5～15%, has murder by poisoning and suppresses common micro-organisms cell in decanedioic acid waste waterEffect, and in anaerobic biological processing procedure, also easily there is sulfate reduction generation H in contains sodium sulfate waste water2S, thereforeConventional activated sludge process can not be used for the direct biochemical treatment of decanedioic acid waste water. Therefore, decanedioic acid factory effluent in prior artThrough except after phenol pretreatment, first carry out evaporative desalination, then evaporation condensed water is carried out to qualified discharge after biochemical treatment, or furtherReuse after advanced treating. If can directly carry out biochemical treatment qualified discharge without evaporative desalination, will greatly reduce decanedioic acid uselessWater treatment cost, improves the high situation of current decanedioic acid production industry pollution control cost.
Summary of the invention
The object of the invention is the deficiency for existing decanedioic acid wastewater processing technology, propose one and can make decanedioic acid uselessThe method of the direct biochemical treatment of not desalination of water, is used the method can make COD < 100mg/L after decanedioic acid wastewater treatment.
Principle of the present invention is:
Contains sodium sulfate 5～15% in decanedioic acid waste water, mainly containing organic pollutants is phenol, aliphatic acid and small molecular organic acid,Wastewater biochemical is good generally. But, in the fresh wastewater that decanedioic acid workshop is discharged phenol concentration reach 2000～5000mg/L, water temperature exceedes 50 DEG C, is wherein difficult to have microbial survival. But, through removing the pretreated decanedioic acid waste water of phenol,Wherein phenol concentration is generally down to 50～150mg/L, and bio-toxicity reduces greatly. If it is longer that this waste water is placed at normal temperaturesTime, carry out contacting of long period with external environment, the microbes in surrounding soil, dust, empty G&W occurs mutuallyContact, and the microorganism in these environment is introduced in decanedioic acid waste water, wherein part microorganism is in the long-term ageing of waste waterIn journey, can adapt to gradually decanedioic acid waste water quality environment, and and finally can be using the organic matter in waste water as carbon source and the energyGrow. In addition on the one hand, the high sodium sulfate wastewater that decanedioic acid production process produces, meeting and factory under open working conditionThe environment such as soil, air and rainwater in district interact, and therefore, have around the decanedioic acid enterprise of certain production timeIn environment, exist by natural selection effect and obtain the adaptive salt-durable microbe of decanedioic acid waste water quality.
Technical problem to be solved by this invention is to realize by following technical scheme. The present invention is a kind of last of the ten Heavenly stems twoThe direct biochemical processing method of acid not desalination of waste water, is characterized in: the method is to pass through in the situation that waste water does not dilute not desalinationBiochemical method makes COD < 100mg/L after decanedioic acid wastewater treatment, and its key step comprises:
(1) cultivation of salt tolerant aerobic activated sludge: directly cultivate the aerobic flora of salt tolerant with decanedioic acid ageing waste water; The initial last of the ten Heavenly stemsDiacid ageing influent waste water COD < 500mg/L, total salt are 5～15%; HRT > 12h in incubation, dissolved oxygen DO > 0.5mg/L; As the clearance > 80% of COD or phenol, improve influent COD, continue to cultivate 2～10d; When nutrient solution turbidity increase and quietPostpone has and can occur by sedimentation flco, continues to improve influent COD, maintains F/M < 1.0 and continues and cultivate 5～30d, obtains at aerobicUnder condition, decanedioic acid waste water there is the salt tolerant aerobic activated sludge of aerobic degradation ability;
Described decanedioic acid ageing waste water refers to the decanedioic acid waste water that is stored open at least 1 month under normal temperature;
(2) cultivation of salt tolerant hydrolysis souring activity mud: inoculation salt tolerant aerobic activated sludge is to hydrolysis acidification pool, with the last of the ten Heavenly stems twoAcid waste water is directly cultivated salt tolerant hydrolysis acidification flora; Initial influent COD < 500mg/L, total salt are 5～15%, in incubationHRT > 12h, dissolved oxygen DO < 0.5mg/L; As COD clearance > 20%, improve influent COD, maintain F/M=0.1～0.4 and continueContinue and cultivate 30～90d, obtain under anoxia condition, decanedioic acid waste water being had the salt tolerant hydrolysis souring activity of hydrolysis acidification functionMud;
(3) biochemical treatment of decanedioic acid waste water: the mud that step (2) and step (1) are obtained is inoculated into respectively hydrolysis acidChange pond and Aerobic Pond, adopt " hydrolysis acidification+aerobic " technique to process decanedioic acid waste water; Hydrolysis acidification segment process parameterFor: influent COD < 5000mg/L, HRT is 8～48h, MLSS is 4000～20000mg/L, F/M=0.1～0.4; Aerobic section workSkill parameter is: HRT is 12～48h, and MLSS is 2000～5000mg/L, dissolved oxygen 2.0～4.0mg/L, F/M=0.2～1.0.
In the direct biochemical processing method of not desalination of a kind of decanedioic acid waste water of the present invention, further preferred technical sideCase or technical characterictic are:
1. first adopt extraction or macroporous resin method to remove phenol pretreatment, processed waste water to decanedioic acid factory effluentCOD < 5000mg/L, volatile phenol < 200mg/L, then carry out ageing and obtain decanedioic acid ageing waste water.
2. in step (1), (2) and (3), supplement on demand N, P, K as nutrient.
3. enter with the reduction initial stage with 5～15% aqueous sodium persulfate solution dilution decanedioic acid ageing waste water or decanedioic acid waste waterWater COD.
4. salt tolerant aerobic activated sludge inoculum concentration >=500mg/L in step (2).
In step (3) salt tolerant aerobic activated sludge and salt tolerant hydrolysis souring activity sludge seeding amount be respectively 1000～20000mg/L、500～5000mg/L。
6. step (1) decanedioic acid ageing influent waste water pH is 5.0～6.0.
Below technical solution of the present invention is further elaborated:
1. decanedioic acid waste water of the present invention, refers to decanedioic acid factory effluent is removed to the pretreated waste water of phenol, itsMiddle volatile phenol < 200mg/L, COD < 5000mg/L; Except phenol method comprise castor oil acid extraction, secondary octanol extraction, complexometric extraction,The art methods such as macroporous resin adsorption.
2. decanedioic acid ageing waste water of the present invention refers to through depositing at normal temperatures except the pretreated decanedioic acid waste water of phenolWaste water after a period of time. Waste water is micro-by the salt tolerant in natural selection effect screening and enrichment surrounding environment in ageing processBiological. Therefore, waste water digestion time should be longer as far as possible, increases the time of natural selection effect, thereby improve ageingThe selective enrichment effect of journey to salt-durable microbe; Can also be by adding the environment such as near soil decanedioic acid workshop, water sampleSample carries out ageing in waste water.
3. in step (2), salt tolerant aerobic activated sludge both can be used as the bacterium source of cultivating hydrolysis acidification flora, also did simultaneouslyFor the attachment of hydrolysis acidification flora, thereby initial inoculum should be higher, is preferably not less than 500mg/L.
4. in step (3) Aerobic Pond, salt tolerant aerobic activated sludge initial inoculum is preferably 500～5000mg/L, hydrolysis acidChange salt tolerant hydrolysis souring activity sludge seeding amount in pond and be preferably 1000～20000mg/L. Due to aerobic sludge growth rateHurry up, initial inoculation concentration can be low a little; But hydrolysis acidification mud growth rate is relatively slow, and initial inoculation concentration is preferably higher.
5. if desired decanedioic acid waste water is diluted, reduce the influent COD of the invention process starting stage, should be with 5～15% aqueous sodium persulfate solution dilutes.
6. in decanedioic acid waste water, contain more aliphatic acid, in Hydrolysis Acidification, pH can raise, with general hydrolysis acidificationFeature difference; Therefore, water inlet pH can maintain faintly acid, and pH is 5.0～6.0, thereby reduces soda acid consumption.
7. relative shortage of nutrient of nitrogen phosphorus etc. and salt-durable microbe growth in decanedioic acid waste water, therefore at least should mendFill N, P, K in nutrient.
Compared with prior art, the invention has the beneficial effects as follows:
(1) directly COD < 200mg/L, volatile phenol < 0.5mg/L after biochemical treatment of decanedioic acid waste water, has solved traditionThe difficult problem that biochemical method can not directly be processed decanedioic acid waste water.
(2) utilize decanedioic acid waste water self to cultivate aerobic directly the turning out of salt tolerant under hypersaline environment and adapt to decanedioic acid waste waterThe salt-durable microbe flora of water quality, without Halophiles is separated or pure culture, has reduced enforcement difficulty.
(3) adopt biochemical method directly to process the high-salt wastewater of contains sodium sulfate 5～15%, with respect to techniques such as evaporations significantlyDegree reduces cost for wastewater treatment.
Detailed description of the invention
Below in conjunction with specific embodiment, content of the present invention is described, so that those skilled in the art enter the present inventionOne step is understood.
Embodiment 1, the direct biochemical processing method of not desalination of a kind of decanedioic acid waste water, the method is cannot to dilute de-ly at waste waterIn the situation of salt, make COD < 100mg/L after decanedioic acid wastewater treatment by biochemical method, its key step comprises:
(1) cultivation of salt tolerant aerobic activated sludge: directly cultivate the aerobic flora of salt tolerant with decanedioic acid ageing waste water; The initial last of the ten Heavenly stemsDiacid ageing influent waste water COD < 500mg/L, total salt are 5%; HRT > 12h in incubation, dissolved oxygen DO > 0.5mg/L; WhenThe clearance > 80% of COD or phenol, improves influent COD, continues to cultivate 2～10d; After nutrient solution turbidity increases and leaves standstillHave and can occur by sedimentation flco, continue to improve influent COD, maintain F/M < 1.0 and continue and cultivate 5～30d, obtain at aerobic conditionsUnder decanedioic acid waste water is had to the salt tolerant aerobic activated sludge of aerobic degradation ability;
Described decanedioic acid ageing waste water refers to the decanedioic acid waste water that is stored open at least 1 month under normal temperature;
(2) cultivation of salt tolerant hydrolysis souring activity mud: inoculation salt tolerant aerobic activated sludge is to hydrolysis acidification pool, with the last of the ten Heavenly stems twoAcid waste water is directly cultivated salt tolerant hydrolysis acidification flora; Initial influent COD < 500mg/L, total salt are 5%, HRT > in incubation12h, dissolved oxygen DO < 0.5mg/L; As COD clearance > 20%, improve influent COD, maintain F/M=0.1 and continue cultivate 30～90d, obtains under anoxia condition decanedioic acid waste water to have the salt tolerant hydrolysis souring activity mud of hydrolysis acidification function;
(3) biochemical treatment of decanedioic acid waste water: the mud that step (2) and step (1) are obtained is inoculated into respectively hydrolysis acidChange pond and Aerobic Pond, adopt " hydrolysis acidification+aerobic " technique to process decanedioic acid waste water; Hydrolysis acidification segment process parameterFor: influent COD < 5000mg/L, HRT is 8～48h, MLSS is 4000mg/L, F/M=0.1; Aerobic section technological parameter is: HRTBe 12～48h, MLSS is 2000mg/L, dissolved oxygen 2.0mg/L, F/M=0.2.
Embodiment 2, the direct biochemical processing method of not desalination of a kind of decanedioic acid waste water, the method is cannot to dilute de-ly at waste waterIn the situation of salt, make COD < 100mg/L after decanedioic acid wastewater treatment by biochemical method, its key step comprises:
(1) cultivation of salt tolerant aerobic activated sludge: directly cultivate the aerobic flora of salt tolerant with decanedioic acid ageing waste water; The initial last of the ten Heavenly stemsDiacid ageing influent waste water COD < 500mg/L, total salt are 15%; HRT > 12h in incubation, dissolved oxygen DO > 0.5mg/L;As the clearance > 80% of COD or phenol, improve influent COD, continue to cultivate 2～10d; When nutrient solution turbidity increases and leaves standstillAfter have and can sedimentation flco occur, continue to improve influent COD, maintain F/M < 1.0 and continue and cultivate 5～30d, obtain at aerobic barUnder part, decanedioic acid waste water there is the salt tolerant aerobic activated sludge of aerobic degradation ability;
Described decanedioic acid ageing waste water refers to the decanedioic acid waste water that is stored open at least 1 month under normal temperature;
(2) cultivation of salt tolerant hydrolysis souring activity mud: inoculation salt tolerant aerobic activated sludge is to hydrolysis acidification pool, with the last of the ten Heavenly stems twoAcid waste water is directly cultivated salt tolerant hydrolysis acidification flora; Initial influent COD < 500mg/L, total salt are 15%, HRT > in incubation12h, dissolved oxygen DO < 0.5mg/L; As COD clearance > 20%, improve influent COD, maintain F/M=0.4 and continue cultivate 30～90d, obtains under anoxia condition decanedioic acid waste water to have the salt tolerant hydrolysis souring activity mud of hydrolysis acidification function;
(3) biochemical treatment of decanedioic acid waste water: the mud that step (2) and step (1) are obtained is inoculated into respectively hydrolysis acidChange pond and Aerobic Pond, adopt " hydrolysis acidification+aerobic " technique to process decanedioic acid waste water; Hydrolysis acidification segment process parameterFor: influent COD < 5000mg/L, HRT is 8～48h, MLSS is 20000mg/L, F/M=0.4; Aerobic section technological parameter is: HRTBe 12～48h, MLSS is 5000mg/L, dissolved oxygen 4.0mg/L, F/M=1.0.
Embodiment 3, the direct biochemical processing method of not desalination of a kind of decanedioic acid waste water, the method is cannot to dilute de-ly at waste waterIn the situation of salt, make COD < 100mg/L after decanedioic acid wastewater treatment by biochemical method, its key step comprises:
(1) cultivation of salt tolerant aerobic activated sludge: directly cultivate the aerobic flora of salt tolerant with decanedioic acid ageing waste water; The initial last of the ten Heavenly stemsDiacid ageing influent waste water COD < 500mg/L, total salt are 10%; HRT > 12h in incubation, dissolved oxygen DO > 0.5mg/L;As the clearance > 80% of COD or phenol, improve influent COD, continue to cultivate 2～10d; When nutrient solution turbidity increases and leaves standstillAfter have and can sedimentation flco occur, continue to improve influent COD, maintain F/M < 1.0 and continue and cultivate 5～30d, obtain at aerobic barUnder part, decanedioic acid waste water there is the salt tolerant aerobic activated sludge of aerobic degradation ability;
Described decanedioic acid ageing waste water refers to the decanedioic acid waste water that is stored open at least 1 month under normal temperature;
(2) cultivation of salt tolerant hydrolysis souring activity mud: inoculation salt tolerant aerobic activated sludge is to hydrolysis acidification pool, with the last of the ten Heavenly stems twoAcid waste water is directly cultivated salt tolerant hydrolysis acidification flora; Initial influent COD < 500mg/L, total salt are 10%, HRT > in incubation12h, dissolved oxygen DO < 0.5mg/L; As COD clearance > 20%, improve influent COD, maintain F/M=0.2 and continue cultivate 30～90d, obtains under anoxia condition decanedioic acid waste water to have the salt tolerant hydrolysis souring activity mud of hydrolysis acidification function;
(3) biochemical treatment of decanedioic acid waste water: the mud that step (2) and step (1) are obtained is inoculated into respectively hydrolysis acidChange pond and Aerobic Pond, adopt " hydrolysis acidification+aerobic " technique to process decanedioic acid waste water; Hydrolysis acidification segment process parameterFor: influent COD < 5000mg/L, HRT is 8～48h, MLSS is 10000mg/L, F/M=0.2; Aerobic section technological parameter is: HRTBe 12～48h, MLSS is 3500mg/L, dissolved oxygen 3.0mg/L, F/M=0.6.
Embodiment 4, in the method for embodiment 1-3 described in any one: first adopt extraction or macroporous resin method to the last of the ten Heavenly stems twoAcid producing waste water removes phenol pretreatment, and processed waste water COD < 5000mg/L, volatile phenol < 200mg/L, then carry out ageingObtain decanedioic acid ageing waste water.
Embodiment 5, in the method for embodiment 1-4 described in any one: in step (1), (2) and (3), supplement on demandN, P, K are as nutrient.
Embodiment 6, in the method for embodiment 1-5 described in any one: with 5～15% the aqueous sodium persulfate solution dilution last of the ten Heavenly stems twoAcid ageing waste water or decanedioic acid waste water are to reduce initial stage influent COD.
Embodiment 7, in the method for embodiment 1-6 described in any one: salt tolerant aerobic activated sludge inoculum concentration in step (2)≥500mg/L。
Embodiment 8, in the method for embodiment 1-7 described in any one: salt tolerant aerobic activated sludge and salt tolerant in step (3)Hydrolysis acidification activated sludge inoculum concentration is respectively 1000～20000mg/L, 500～5000mg/L.
Embodiment 9, in the method for embodiment 1-8 described in any one: step (1) decanedioic acid ageing influent waste water pH is5.0～6.0。
Embodiment 10, the direct biochemical processing method experiment of not desalination of a kind of decanedioic acid waste water:
Certain enterprise's decanedioic acid factory effluent, COD is 12000～15000mg/L, phenol content is 3000～4000mg/L, sulphurAcid sodium content is 6～10%, adopts castor oil acid to carry out multitple extraction except phenol to waste water, reclaims the phenol in waste water simultaneously. Through removingAfter phenol pretreatment, waste water COD is 3500～4200mg/L, and phenol content is 50～150mg/L, and pH is 5.0～6.0.
Get the above-mentioned pretreated decanedioic acid waste water of the phenol 200L of removing and pack in Plastic Drum, be placed in plant area, at room temperature carry outAgeing 4 months. After waste water ageing finishes, with 5～15% aqueous sodium persulfate solutions by part ageing wastewater dilution to COD < 500mg/L, volatile phenol < 50mg/L. Get 500mL waste water, supplement urea and potassium dihydrogen phosphate, shaken cultivation 48h. Leave standstill or centrifugal rear rowGo out supernatant, supplement the follow-up persistent oscillation of waste water and N, P and cultivate. So cultivate 3～10 cycles, each cycle 20～30h, considerableExamine solution turbidity increase and have can sedimentation flco occur; By sedimentation, filtration or centrifugal after flco transfer to 6L deviceMiddle aeration is cultivated, and progressively improves influent COD, maintains F/M=0.4～1.0 and continue to cultivate 5～10d, and activated sludge concentration is continuousIncrease, be salt tolerant aerobic activated sludge.
Inoculate the salt tolerant aerobic activated sludge of above-mentioned cultivation and cultivate salt tolerant hydrolysis souring activity mud to 2L hydrolytic tank, initialSludge seeding amount is 500～1000mg/L, does not first enter waste water, makes the mud 2～5d that dallies under anaerobic condition. After mud blackout,Enter decanedioic acid waste water, initial influent COD < 500mg/L, total salt 5～15%, retention time of sewage 20～30h, dissolved oxygen DO <0.5mg/L; As COD clearance > 20%, show that salt tolerant hydrolysis acidification flora forms. Increase influent COD, maintain F/M=0.1～0.4 also continues to cultivate 30～60d, can cultivate and obtain salt tolerant hydrolysis souring activity mud.
Adopt " hydrolysis acidification+aerobic " PROCESS FOR TREATMENT decanedioic acid waste water, inoculate respectively above-mentioned mud to 2L hydrolysis acidification poolWith 4L Aerobic Pond. Hydrolysis acidification pool is Anaerobic Contact pond, and Aerobic Pond is MBBR pond. Hydrolysis acidification pool sludge seeding amount approximately5000mg/L, the about 3000mg/L of Aerobic Pond sludge seeding amount; Hydrolysis acidification pool HRT=24h, Aerobic Pond HRT=48h; Hydrolysis acidificationF/M=0.1～0.4, pond; Aerobic Pond F/M=0.4～0.6; Hydrolysis acidification pool dissolved oxygen DO < 0.5mg/L, Aerobic Pond dissolved oxygen 2.0～4.0mg/L; It is 6.0～9.0 that pH controls, and water temperature is 25～35 DEG C; After 15～30d, successfully start, finally can make the last of the ten Heavenly stems twoCOD < 100mg/L, volatile phenol < 0.5mg/L after acid wastewater treatment.
Embodiment 11, the direct biochemical processing method experiment of not desalination of a kind of decanedioic acid waste water:
Certain enterprise's decanedioic acid factory effluent, COD is 12000～18000mg/L, phenol content is 2000～4000mg/L, sulphurAcid sodium content is 6～12%, adopts secondary octanol to extract except phenol waste water, reclaims the phenol in waste water simultaneously. Through locating in advance except phenolAfter reason, waste water COD is 2500～3000mg/L, and phenol content is 50～100mg/L.
Get above-mentioned removing under the pretreated decanedioic acid waste water of phenol 50L room temperature and carry out ageing, digestion time 2 months, aging periodBetween 30～35 DEG C of temperature average out to, do not do other processing. With 5～15% aqueous sodium persulfate solutions by wastewater dilution to COD < 500mg/L, volatile phenol < 50mg/L, supplement urea, potassium dihydrogen phosphate, gets 500mL shaken cultivation. In incubation, detect COD and phenolPalliating degradation degree, as the degradation rate > 80% of COD or phenol, centrifugal rear discharge supernatant, adds decanedioic acid ageing waste water and N, P battalionSupport, continue shaken cultivation. So repeat to cultivate 3～5 times, solution turbidity, has flco to occur and sedimentation after leaving standstill. Transfer to 6LIn aerator, aeration is cultivated, and progressively improves influent COD, control dissolved oxygen DO > 0.5mg/L, sludge loading F/M=0.2～0.5; So cultivate 15～30d, sludge concentration is increased to 1000～2000mg/L, continues water inlet and cultivates, and sludge concentration can enter oneStep improves.
Inoculate above-mentioned salt tolerant aerobic activated sludge and cultivate salt tolerant hydrolysis souring activity mud to the hydrolytic tank of 6L, not aeration,Mode with intermittent stirring provides anaerobic environment, and hydrolysis acidification activated sludge is selected in domestication gradually. Initial sludge seeding amount is1000～1500mg/L, does not first enter waste water, microelement-supplementing, and continuous stirring operation 2 days, mud turns black gradually. Start into the last of the ten Heavenly stemsDiacid waste water, discharges 2～3L supernatant, initial influent COD < 500mg/L, and mixing time is 12～24h approximately; Each cycle stirsAfter end, analyze and measure COD clearance and VFA situation of change, when COD clearance > 20% and VFA increase more than 20%, show resistance toSalt hydrolysis acidifying flora forms. Increase influent CODs with 20～50% ratios, maintain F/M=0.1～0.4 and cultivate 40～60d, activated sludge concentration increases, and successfully cultivates and obtains salt tolerant hydrolysis souring activity mud.
Salt tolerant hydrolysis souring activity mud and salt tolerant aerobic activated sludge that inoculation above-mentioned steps is cultivated are processed the actual last of the ten Heavenly stems twoAcid waste water. Hydrolysis acidification pool is UASB form, sludge seeding amount 20000mg/L; Aerobic Pond is divided into two sections, " MBBR+MBR ", dirtMud inoculum concentration 2000mg/L; The hydrolysis acidification pool time of staying 15～20h, the Aerobic Pond time of staying 36～48h; Hydrolysis acidification pool F/M=0.1～0.4; Aerobic Pond F/M=0.4～0.6; Hydrolysis acidification pool dissolved oxygen DO < 0.5mg/L, Aerobic Pond dissolved oxygen 2.0～4.0mg/L; It is 6.0～9.0 that pH controls, and water temperature is 25～35 DEG C; Start successfully through 15～30d, finally can make decanedioic acid uselessCOD < 100mg/L, volatile phenol < 0.5mg/L after water treatment.
Embodiment 12, the direct biochemical processing method experiment of not desalination of a kind of decanedioic acid waste water:
Certain enterprise's decanedioic acid factory effluent, COD is 12000～15000mg/L, phenol content is 3000～4000mg/L, adoptsWith HLE type complexing extractant, waste water is carried out to extraction and back-extraction and get, reclaim the phenol in waste water simultaneously. Useless after removing phenol pretreatmentWater COD is 1000～1200mg/L, and phenol content is 10～40mg/L.
Get above-mentioned removing under the pretreated decanedioic acid waste water of phenol 50L room temperature and carry out ageing, digestion time 6 months, aging periodBetween temperature be 30～35 DEG C, do not do other processing. With 5～15% aqueous sodium persulfate solutions by wastewater dilution to COD < 500mg/L, waveSend out phenol < 50mg/L, supplement urea, potassium dihydrogen phosphate, get 6000mL aeration and cultivate 24～48h. Leave standstill half an hour, discharge on 1/2Clear liquid, decanedioic acid ageing waste water and N, P nutrition after adding after dilution, continue aeration and cultivate, control dissolved oxygen DO and be 0.5～4.0mg/L. So cultivate 3～5 cycles, solution turbidity increase and leave standstill after have can sedimentation flco occur. Progressively improveInfluent COD, controlling dissolved oxygen DO is 2.0～4.0mg/L, F/M=0.4～0.6; So cultivate 10～20d, sludge concentration increasesTo 1000mg/L, continue water inlet and cultivate, sludge concentration can further improve.
Inoculate above-mentioned salt tolerant aerobic activated sludge and cultivate salt tolerant hydrolysis souring activity mud to the hydrolytic tank of 6L, not aeration,Mode with intermittent stirring provides anaerobic environment, and hydrolysis acidification activated sludge is selected in domestication gradually. Initial sludge seeding amount is2000mg/L left and right, does not first enter waste water, continuous stirring operation 2～4 days, and mud turns black gradually. Start into decanedioic acid waste water, weeklyPhase is discharged 3L supernatant, enters 3L waste water, stirs 8～24h, and quiescent settling 0.5～2h analyzes and measures COD clearance. Initial water inletCOD < 500mg/L, when COD clearance > 20% also keeps stable, shows that salt tolerant hydrolysis acidification flora begins to take shape. With 20～50% ratio increases influent COD, maintains F/M=0.1～0.4 and continues to cultivate 60～90d, salt tolerant hydrolysis souring activity culturing sludgeTo 4000mg/L.
Salt tolerant hydrolysis souring activity mud and salt tolerant aerobic activated sludge that inoculation above-mentioned steps is cultivated are processed the actual last of the ten Heavenly stems twoAcid waste water. Hydrolysis acidification pool sludge seeding amount 5000～10000mg/L, Aerobic Pond sludge seeding amount 2000～4000mg/L; WaterSeparate the acidification pool time of staying 20～30h, the Aerobic Pond time of staying 36～48h; Hydrolysis acidification pool F/M(sludge loading)=0.1～0.4; Aerobic Pond F/M=0.4～0.6; Hydrolysis acidification pool dissolved oxygen DO < 0.5mg/L, Aerobic Pond dissolved oxygen 2.0～4.0mg/L;It is 6.0～9.0 that pH controls, and water temperature is 25～35 DEG C; Start successfully through 15～30d, finally can make after decanedioic acid wastewater treatmentCOD < 100mg/L, volatile phenol < 0.5mg/L.
Claims (6)
1. the direct biochemical processing method of not desalination of decanedioic acid waste water, is characterized in that: the method is not dilute not at waste waterIn the situation of desalination, make COD < 100mg/L after decanedioic acid wastewater treatment by biochemical method, its key step comprises:
(1) cultivation of salt tolerant aerobic activated sludge: directly cultivate the aerobic flora of salt tolerant with decanedioic acid ageing waste water; Initial decanedioic acidAgeing influent waste water COD < 500mg/L, total salt are 5～15%; HRT > 12h in incubation, dissolved oxygen DO > 0.5mg/L;As the clearance > 80% of COD or phenol, improve influent COD, continue to cultivate 2～10d; When nutrient solution turbidity increases and leaves standstillAfter have and can sedimentation flco occur, continue to improve influent COD, maintain F/M < 1.0 and continue and cultivate 5～30d, obtain at aerobic barUnder part, decanedioic acid waste water there is the salt tolerant aerobic activated sludge of aerobic degradation ability;
Described decanedioic acid ageing waste water refers to the decanedioic acid waste water that is stored open at least 1 month under normal temperature;
(2) cultivation of salt tolerant hydrolysis souring activity mud: inoculation salt tolerant aerobic activated sludge is to hydrolysis acidification pool, useless with decanedioic acidWater is directly cultivated salt tolerant hydrolysis acidification flora; Initial influent COD < 500mg/L, total salt are 5～15%, HRT > in incubation12h, dissolved oxygen DO < 0.5mg/L; As COD clearance > 20%, improve influent COD, maintain F/M=0.1～0.4 and continue trainingSupport 30～90d, obtain under anoxia condition, decanedioic acid waste water being had the salt tolerant hydrolysis souring activity mud of hydrolysis acidification function;
(3) biochemical treatment of decanedioic acid waste water: the mud that step (2) and step (1) are obtained is inoculated into respectively hydrolysis acidification poolAnd Aerobic Pond, adopt " hydrolysis acidification+aerobic " technique to process decanedioic acid waste water; Hydrolysis acidification segment process parameter is: enterWater COD < 5000mg/L, HRT is 8～48h, MLSS is 4000～20000mg/L, F/M=0.1～0.4; Aerobic section technique ginsengNumber is: HRT is 12～48h, and MLSS is 2000～5000mg/L, dissolved oxygen 2.0～4.0mg/L, F/M=0.2～1.0.
2. method according to claim 1, is characterized in that: first adopt extraction or macroporous resin method to produce decanedioic acidWaste water removes phenol pretreatment, and then processed waste water COD < 5000mg/L, volatile phenol < 200mg/L carry out ageing and obtain the last of the ten Heavenly stemsDiacid ageing waste water.
3. method according to claim 1, is characterized in that: in step (1), (2) and (3), supplement on demand N, P, KAs nutrient.
4. method according to claim 1, is characterized in that: salt tolerant aerobic activated sludge inoculum concentration in step (2) >=500mg/L。
5. method according to claim 1, is characterized in that: salt tolerant aerobic activated sludge and salt tolerant hydrolysis in step (3)Souring activity sludge seeding amount is respectively 1000～20000mg/L, 500～5000mg/L.
6. method according to claim 1, is characterized in that: step (1) decanedioic acid ageing influent waste water pH is 5.0～6.0。
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| CN101838083A (en) * | 2010-05-17 | 2010-09-22 | 浙江大学 | Method for treating organic chemical wastewater having high COD and high concentration of sulfate ions |
| CN102010094A (en) * | 2009-09-07 | 2011-04-13 | 中国石油化工股份有限公司 | Method for treating high-calcium and high-salt industrial wastewater |
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| CN102010094A (en) * | 2009-09-07 | 2011-04-13 | 中国石油化工股份有限公司 | Method for treating high-calcium and high-salt industrial wastewater |
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| CN102190411A (en) * | 2010-05-17 | 2011-09-21 | 浙江大学 | Treatment method for acidic organic chemical wastewater with high COD (chemical oxygen demand) and high sulfate radical concentration |
| CN102503034A (en) * | 2011-11-08 | 2012-06-20 | 中蓝连海设计研究院 | Treatment method of phenol-containing liquid waste in sebacic acid production |
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