CN105084529B - A method of handling decanedioic acid waste water using halophile - Google Patents
A method of handling decanedioic acid waste water using halophile Download PDFInfo
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- CN105084529B CN105084529B CN201510575917.9A CN201510575917A CN105084529B CN 105084529 B CN105084529 B CN 105084529B CN 201510575917 A CN201510575917 A CN 201510575917A CN 105084529 B CN105084529 B CN 105084529B
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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 present invention provides a kind of method handling decanedioic acid waste water using halophile.Compound halophile microbial inoculum is added in biochemical system, is directly cultivated under the conditions of influent waste water salinity 3% ~ 15% and fits salt activated sludge and halobiont film, halophile flora is made to adapt to waste water quality and plays Synergistic degradation effect, to make the COD in waste waterCr, volatile phenol and other pollutants it is up to standard after processing.Using this method, the decanedioic acid of total salt concentration 3% ~ 15% produces phenol wastewater with high salt can be with biochemical treatment, and can directly handle to CODcr ＜ 100mg/L, volatile phenol ＜ 0.5mg/L, and processing cost is greatly reduced.
Description
Technical field
The invention belongs to high-salt wastewater processing technology fields, specifically halophile are utilized to handle decanedioic acid waste water
Method.
Background technology
China is that the maximum country of decanedioic acid yield, current main use are given birth to by the cracking process of raw material of castor oil in the world
Production. art, product per ton need to consume 150~250kg phenol, generate 25~40 tons of waste water, wherein phenol content be 2000~
5000mg/L, pH are 2~3, sodium sulphate content is 6~10%, COD contents are 10000~20000mg/L.Decanedioic acid waste water belongs to high
Salt, high phenol, high-COD waste water；It is estimated that the decanedioic acid enterprise of a 40000t/a generates 1,500,000 m of waste water3/ year.If this waste water
Without improving processing, environment can be caused seriously to pollute.
The industrial main method using extraction or absorption handles decanedioic acid waste water at present, can remove in waste water
Most of phenols, or even keep phenol up to standard, but still it is insufficient to allow waste water quality completely up to standard.Such as：Using ricinoleic acid to the last of the ten Heavenly stems two
Sour waste water is extracted, 8 grades of series of extraction or more, though without being stripped, horizontal COD ＞ 4000mg/L, phenol ＞ after extraction
50mg/L；Using sec-octyl alcohol as extractant, water COD ＞ 2000mg/L, phenol ＞ 50mg/L after extraction；Utilize QH-1 type complexometric extractions
Phenol for Waste Water content can be made to be down to 10mg/L hereinafter, but raffinate COD ＞ 1000mg/L.Therefore, for decanedioic acid wastewater treatment
It is up to standard, it is necessary to the waste water after extraction to be further processed, main method includes advanced oxidation and biochemical treatment.In comparison,
If biochemical process can be used for wastewater treatment, there will be cost advantage.
Sodium sulphate content is up to 5%~15% in decanedioic acid waste water, has murder by poisoning and inhibiting effect to common micro-organisms cell,
This is the salt concentration range that general biochemical method is difficult to go beyond.Currently, decanedioic acid produces waste water after except phenol pretreatment, the place of use
Reason method is first evaporative desalination, then rear discharge up to standard to the further biochemical treatment of evaporation condensed water, or further depth
Reuse after reason.40 yuan/m of decanedioic acid waste water evaporative desalination operating cost3More than.If decanedioic acid waste water energy is direct without evaporative desalination
It is up to standard to carry out biochemical treatment, 80% or more decanedioic acid waste water treatment cost reduction will be made.
The technology that decanedioic acid waste water is handled using Halophiles or salinity domestication method is relatively conventional in laboratory research, but
It is difficult to be engineered.
Invention content
The problem to be solved in the present invention be to the deficiencies in the prior art, providing a kind of method reasonable design, processing is easy
The method for handling decanedioic acid waste water using halophile at low cost.
High saliferous phenol wastewater in decanedioic acid production of the present invention, refers to that decanedioic acid mother liquor obtains after settling, filtering
Waste water, salt content ranging from 5% ~ 15%, CODCrFor 10000 ~ 20000mg/L, 2000 ~ 5000mg/L of phenol content.
Halophile of the present invention refers to the microorganism for adapting to hypersaline environment, capableing of normal growth metabolism, including thermophilic
The bacterium of salt and salt tolerant, fungi, ancient bacterium, protozoan, metazoa and other microorganisms.
The technical problem to be solved by the present invention is to what is be achieved through the following technical solutions.The present invention is that a kind of utilize fits salt
The method of microbiological treatment decanedioic acid waste water, its main feature is that：Step includes：
（1）Add microbial bacterial agent：Halophile flora is added into biochemical system；
（2）Halophile degradation flora culture：Biochemical system is cultivated under 3% ~ 15% salt concentration conditions and fits salt activity dirt
Mud or halobiont film；
（3）Decanedioic acid wastewater treatment：Biochemical system is lived under 3% ~ 15% water inlet salt concentration conditions using cultured suitable salt
Property sludge or biological film process decanedioic acid waste water.
A kind of method handling decanedioic acid waste water using halophile of the present invention, further preferred technical solution
It is：The halophile flora is prepared according to method of the number of patent application disclosed in CN201310540099.X.
Number of patent application CN201310540099.X is patent people of the present invention in the patent of invention submitted on November 05th, 2013
Application.The invention provides a kind of methods preparing Salt-tolerant microbial agent.It, can be in salinity 1% ~ 30% using the inventive method
Salt concentration range in directly prepare microbial bacterial agent.Prepared microbial inoculum contains abundant salt-durable microbe and halophilic microorganism
Diversity.Therefore, the compound halophile microbial inoculum prepared using this method is added in the methods of the invention, it can be useless for decanedioic acid
The biochemical treatment of water provides as abundant as possible halophilic microorganism and salt-durable microbe source, for subsequently suitable salt activated sludge and suitable
Good microorganism basis is established in the culture of salt biomembrane.
A kind of method handling decanedioic acid waste water using halophile of the present invention, further preferred technical solution
It is：Before the decanedioic acid waste water enters biochemical system, first carries out pretreatment and remove phenol, make Determination of Volatile Phenol in Refinery Wastewater ＜ 200mg/L.
A kind of method handling decanedioic acid waste water using halophile of the present invention, further preferred technical solution
It is：The compound halophile microbial inoculum adds a concentration of not less than 300mg/L.The suitable salt being added in technical solution of the present invention is micro-
Biodegradable flora, concentration, which is added, must meet minimum concentration needed for suitable salt activated sludge and halobiont Membrance cuiture, initial to throw
Add concentration higher, it is faster to start speed.Consider that microbial inoculum adds the economy of concentration, it is most preferably 300 ~ 1000mg/ to add concentration
L。
A kind of method handling decanedioic acid waste water using halophile of the present invention, further preferred technical solution
It is：The biochemical system sludge loading≤0.5kgCOD/ (kgMLSS.d).
A kind of method handling decanedioic acid waste water using halophile of the present invention, further preferred technical solution
It is：15 DEG C ~ 40 DEG C of the biochemical system water temperature, pH 6.0 ~ 9.0.
A kind of method handling decanedioic acid waste water using halophile of the present invention, further preferred technical solution
It is：Biochemical system aerobic tank water outlet dissolved oxygen is not less than 2.0mg/L.
A kind of method handling decanedioic acid waste water using halophile of the present invention, further preferred technical solution
It is：The further flocculation treatment of bio-chemical effluent.
Decanedioic acid waste water of the present invention refers to that decanedioic acid produces high saliferous phenol wastewater and carries out pretreatment except useless after phenol
Water, volatile phenol ＜ 200mg/L.Described to remove phenol technique, preferably extraction removes phenol technique.
In technical solution of the present invention, the processing of decanedioic acid wastewater biochemical, it is proposed that the technique that uses and sludge loading for：
（1）Aerobic process, sludge loading≤0.2 kgCOD/ (kgMLSS.d), preferably≤0.1 kgCOD/
(kgMLSS.d)；
（2）Anaerobic hydrolysis+aerobic process, the kgCOD/ (kgMLSS.d) of anaerobic technique sludge loading≤0.5, aerobic process
The kgCOD/ (kgMLSS.d) of sludge loading≤0.3.
（3）Anaerobic hydrolysis+micro- oxygen+aerobic process, the kgCOD/ (kgMLSS.d) of anaerobic technique sludge loading≤0.5, micro- oxygen
The kgCOD/ (kgMLSS.d) of the kgCOD/ (kgMLSS.d) of process sludge load≤0.5, aerobic process sludge loading≤0.1.
In the present invention in technical solution, decanedioic acid waste water salt concentration range is preferably 6% ~ 15%, it is contemplated that manufacturer
Actual conditions, it is 3% ~ 15% that decanedioic acid wastewater biochemical system water inlet salt concentration range, which can relax, but in actual operation, water inlet
± the 20% of practical water inlet salinity average value is not to be exceeded in salinity fluctuations range.
In technical solution of the present invention, effluent quality is handled to further increase decanedioic acid wastewater biochemical, bio-chemical effluent can be into
One step coagulating treatment.The preferred iron-based flocculating agent of inorganic flocculating agent, including：Ferrous sulfate, polyferric silicate sulfate, gathers bodied ferric sulfate
Close aluminium iron silicate.
COD is handled using the method for the present inventionCr1000 ~ 5000mg/L, 50~200mg/L of volatile phenol, Na2SO4Concentration 2%~
15% decanedioic acid waste water is discharged CODCr＜ 100mg/L, volatile phenol ＜ 0.5mg/L, can reach《Integrated wastewater discharge standard》
（GB8978-1996）Primary standard.Waste water can direct qualified discharge, or be further processed rear reuse.
The method of the present invention is inoculated with halophile degradation flora by inoculation, and is directly trained under 3% ~ 15% salt concentration conditions
The halophile flora-for supporting the decanedioic acid Pollutants in Wastewater that can degrade fits salt activated sludge or halobiont film, has very
Strong salt resistance degree impact capacity and anti-load impact ability.
Beneficial effects of the present invention：
（1）It solves the decanedioic acid production direct biochemical treatment problem of high-salt wastewater, biochemical treatment is carried out for decanedioic acid waste water
Provide new technical solution.
（2）Halophile flora is added, the Start-up and Adjustment process of decanedioic acid biochemical treatment of wastewater can be accelerated.
（3）Using the halophile degradation flora added, the method for the present invention is by decanedioic acid wastewater treatment to CODcr ＜
5 yuan 100mg/L, volatile phenol ＜ 0.5mg/L, operating cost ＜/m3Waste water；And " evaporation+biochemistry " technique is used, operating cost
40 yuan/m of ＞3Waste water.
Specific implementation mode
The specific technical solution of the present invention described further below, in order to which those skilled in the art is further understood that
The present invention, without constituting the limitation to its right.
Embodiment 1, a method of handling decanedioic acid waste water using halophile：Step includes：
（1）Add microbial bacterial agent：Halophile flora is added into biochemical system；
（2）Halophile degradation flora culture：Biochemical system is cultivated under 3% ~ 15% salt concentration conditions and fits salt activity dirt
Mud or halobiont film；
（3）Decanedioic acid wastewater treatment：Biochemical system is lived under 3% ~ 15% water inlet salt concentration conditions using cultured suitable salt
Property sludge or biological film process decanedioic acid waste water.
Embodiment 2, in a kind of method handling decanedioic acid waste water using halophile described in embodiment 1：The suitable salt
Microorganism species are prepared according to method of the number of patent application disclosed in CN201310540099.X.
Embodiment 3, embodiment 1 or 2 it is described it is a kind of using halophile handle decanedioic acid waste water method in：The last of the ten Heavenly stems
Before diacid waste water enters biochemical system, first carries out pretreatment and remove phenol, make Determination of Volatile Phenol in Refinery Wastewater ＜ 200mg/L.
Embodiment 4, a kind of any one of embodiment 1-3 methods handling decanedioic acid waste water using halophile
In：The compound halophile microbial inoculum adds a concentration of not less than 300mg/L.
Embodiment 5, a kind of any one of embodiment 1-4 methods handling decanedioic acid waste water using halophile
In：The biochemical system sludge loading≤0.5kgCOD/ (kgMLSS.d).
Embodiment 6, a kind of any one of embodiment 1-5 methods handling decanedioic acid waste water using halophile
In：15 DEG C ~ 40 DEG C of the biochemical system water temperature, pH 6.0 ~ 9.0.
Embodiment 7, a kind of any one of embodiment 1-5 methods handling decanedioic acid waste water using halophile
In：25 DEG C of the biochemical system water temperature, pH 7.5.
Embodiment 8, a kind of any one of embodiment 1-7 methods handling decanedioic acid waste water using halophile
In：Biochemical system aerobic tank water outlet dissolved oxygen is not less than 2.0mg/L.
Embodiment 9, a kind of any one of embodiment 1-8 methods handling decanedioic acid waste water using halophile
In：The further flocculation treatment of bio-chemical effluent；Flocculant used in flocculation treatment selects ferrous sulfate, bodied ferric sulfate, polymerization silicon
Sour iron, polymeric aluminium ferrum silicate.
Embodiment 10, a kind of methods experiment one handling decanedioic acid waste water using halophile：
5% ~ 15%Na of high-salt wastewater salt content2SO4, 4000 ~ 6000mg/L of COD, phenol≤200mg/L.Utilize the micro- life of suitable salt
The method that object handles the high-salt wastewater, includes the following steps：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 8% ~ 10% salt concentration range, until
Occurs mud-water separation activated sludge of good performance in system；
（3）Using the suitable salt activated sludge of culture, decanedioic acid is handled in the case where intaking salinity 8% ~ 10% and stablizing
Waste water.
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 8% ~ 10% range.
The halophile flora added can be the method system disclosed in CN201310540099.X according to number of patent application
It is standby to obtain, and prepared in 6% ~ 12% salt concentration range.
Halophile flora is initially added concentration 1000mg/L.
The salinity of halophile flora mixed culture is 8% ~ 10%.
Biochemical system uses aerobic process, controls 25 ~ 35 DEG C of water temperature, pH 6.5 ~ 8.5, aerobic tank water outlet dissolved oxygen and is
2.0 ~ 4.0mg/L, sludge loading are 0.1 ~ 0.2kgCOD/ (kgMLSSd).
Embodiment 11, a kind of methods experiment two handling decanedioic acid waste water using halophile：
5% ~ 15%Na of high-salt wastewater salt content2SO4, 4000 ~ 6000mg/L of COD, phenol≤200mg/L.Utilize the micro- life of suitable salt
The method that object handles the high-salt wastewater, includes the following steps：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 8% ~ 10% salt concentration range, until
Occurs mud-water separation activated sludge of good performance in system；
（3）Using the suitable salt activated sludge of culture, decanedioic acid is handled in the case where intaking salinity 8% ~ 10% and stablizing
Waste water.
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 8% ~ 10% range.
The halophile flora added can be the method system disclosed in CN201310540099.X according to number of patent application
It is standby to obtain, and prepared in 6% ~ 12% salt concentration range.
Halophile flora is initially added concentration 500mg/L.
The salinity of halophile flora mixed culture is 8% ~ 10%.
Biochemical system uses aerobic process, controls 20 ~ 30 DEG C of water temperature, pH 7.0 ~ 8.0, aerobic tank water outlet dissolved oxygen and is
2.0 ~ 4.0mg/L, sludge loading are 0.05 ~ 0.1kgCOD/ (kgMLSSd).Aerobic process COD removal rates ＞ 90%, is handled out
Water COD is 200 ~ 350mg/L.
Embodiment 12, a kind of methods experiment three handling decanedioic acid waste water using halophile：
5% ~ 15%Na of high-salt wastewater salt content2SO4, 4000 ~ 6000mg/L of COD, phenol≤200mg/L.Utilize the micro- life of suitable salt
The method that object handles the high-salt wastewater, includes the following steps：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 8% ~ 10% salt concentration range, until
Occurs mud-water separation activated sludge of good performance in system；
（3）Using the suitable salt activated sludge of culture, decanedioic acid is handled in the case where intaking salinity 8% ~ 10% and stablizing
Waste water.
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 8% ~ 10% range.
The halophile flora added can be the method system disclosed in CN201310540099.X according to number of patent application
It is standby to obtain, and prepared in 6% ~ 12% salt concentration range.
Halophile flora is initially added concentration 500mg/L.
The salinity of halophile flora mixed culture is 8% ~ 10%.
Biochemical system uses anaerobic hydrolysis+aerobic process, 20 ~ 30 DEG C of water temperature of control, pH 7.0 ~ 8.0；Anaerobic technique sludge
Load is 0.3 ~ 0.5kg COD/ (kgMLSSd), aerobic process sludge loading is 0.05 ~ 0.1kgCOD/ (kgMLSSd).
Anaerobic hydrolysis COD removal rates 25% ~ 35%, aerobic process COD removal rates ＞ 95%, comprehensive water outlet COD is 80 ~ 120mg/L.
Embodiment 13, a kind of methods experiment four handling decanedioic acid waste water using halophile：
5% ~ 15%Na of high-salt wastewater salt content2SO4, 4000 ~ 6000mg/L of COD, phenol≤200mg/L.Due to other less salts
Waste water is mixed into, and practical decanedioic acid waste water salt content is that 3% ~ 5%, COD is 2500 ~ 4000mg/L.
The method for handling the high-salt wastewater using halophile, includes the following steps：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 3.5% ~ 4.5% salt concentration range, directly
To occurring mud-water separation activated sludge of good performance in system；
（3）Using the suitable salt activated sludge of culture, the last of the ten Heavenly stems two is handled in the case where intaking salinity 3.5% ~ 4.5% and stablizing
Sour waste water.
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 3.5% ~ 4.5% range.
The halophile flora added can be the method system disclosed in CN201310540099.X according to number of patent application
It is standby to obtain, and prepared in 3% ~ 5% salt concentration range.
Halophile flora is initially added concentration 500mg/L.
The salinity of halophile flora mixed culture is 3.5% ~ 4.5%.
Biochemical system uses anaerobic hydrolysis+micro- oxygen+aerobic process, 20 ~ 30 DEG C of water temperature of control, pH 7.0 ~ 8.0；Anaerobism work
Skill sludge loading is 0.2 ~ 0.4kg COD/ (kgMLSSd), micro- oxygen process sludge 0.2 ~ 0.5kgCOD/ of load (kgMLSS
D), aerobic process sludge loading is 0.05 ~ 0.1kgCOD/ (kgMLSSd).Anaerobic hydrolysis COD removal rates 25% ~ 35%, micro- oxygen
Technique COD removal rates ＞ 90%, aerobic process COD removal rates ＞ 75%, comprehensive water outlet COD is 80 ~ 100mg/L.
Embodiment 14, a kind of methods experiment five handling decanedioic acid waste water using halophile：
5% ~ 15%Na of high-salt wastewater salt content2SO4, 4000 ~ 6000mg/L of COD, phenol≤200mg/L.Utilize the micro- life of suitable salt
The method that object handles the high-salt wastewater, includes the following steps：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 8% ~ 10% salt concentration range, until
Occurs mud-water separation activated sludge of good performance in system；
（3）Using the suitable salt activated sludge of culture, decanedioic acid is handled in the case where intaking salinity 8% ~ 10% and stablizing
Waste water.
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 8% ~ 10% range.
The halophile flora added can be the method system disclosed in CN201310540099.X according to number of patent application
It is standby to obtain, and prepared in 6% ~ 12% salt concentration range.
Halophile flora is initially added concentration 500mg/L.
The salinity of halophile flora mixed culture is 8% ~ 10%.
Biochemical system uses anaerobic hydrolysis+micro- oxygen+aerobic process, 20 ~ 30 DEG C of water temperature of control, pH 7.0 ~ 8.0；Anaerobism work
Skill sludge loading is 0.2 ~ 0.4kg COD/ (kgMLSSd), micro- oxygen process sludge 0.2 ~ 0.5kgCOD/ of load (kgMLSS
D), aerobic process sludge loading is 0.05 ~ 0.1kgCOD/ (kgMLSSd).Anaerobic hydrolysis COD removal rates 25% ~ 35%, micro- oxygen
Technique COD removal rates ＞ 90%, aerobic process COD removal rates ＞ 75%, comprehensive water outlet COD is 60 ~ 80mg/L.
Embodiment 15, a kind of methods experiment six handling decanedioic acid waste water using halophile：
5% ~ 15%Na of high-salt wastewater salt content2SO4, 10000 ~ 20000mg/L of COD, 2000 ~ 5000mg/L of phenol, using network
It closes extraction and removes phenol, except waste water COD is 1000 ~ 2000mg/L after phenol.The method for handling the high-salt wastewater using halophile, packet
Include following steps：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 8% ~ 10% salt concentration range, until
Occurs mud-water separation activated sludge of good performance in system；
（3）Using the suitable salt activated sludge of culture, decanedioic acid is handled in the case where intaking salinity 8% ~ 10% and stablizing
Waste water.
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 8% ~ 10% range.
The halophile flora added can be the method system disclosed in CN201310540099.X according to number of patent application
It is standby to obtain, and prepared in 6% ~ 12% salt concentration range.
Halophile flora is initially added concentration 1000mg/L.
The salinity of halophile flora mixed culture is 8% ~ 10%.
Biochemical system uses anaerobic hydrolysis+aerobic process, 30 ~ 40 DEG C of water temperature of control, pH 6.5 ~ 8.5；Anaerobic hydrolysis technique
Residence time 6h, COD removal rate 20% ~ 30%；The aerobic process residence time for 24 hours, 0.1 ~ 0.2 kgCOD/ of sludge loading
(kgMLSSd), COD removal rates ＞ 90%, water outlet COD ＜ 80mg/L.
Claims (3)
1. a kind of method handling decanedioic acid waste water using halophile, it is characterised in that：Step includes：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 3.5% ~ 4.5% salt concentration range, until being
Occurs mud-water separation activated sludge of good performance in system；
（3）Using the suitable salt activated sludge of culture, in the case where intaking salinity 3.5% ~ 4.5% and stablizing, processing decanedioic acid is useless
Water；
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 3.5% ~ 4.5% range；
Halophile flora is initially added concentration 500mg/L；
The salinity of halophile flora mixed culture is 3.5% ~ 4.5%；
Biochemical system uses anaerobic hydrolysis+micro- oxygen+aerobic process, 20 ~ 30 DEG C of water temperature of control, pH 7.0 ~ 8.0；Anaerobic technique is dirty
Mud load is 0.2 ~ 0.4kg COD/ (kgMLSSd), 0.2 ~ 0.5kgCOD/ of micro- oxygen process sludge load (kgMLSSd), good
Oxygen process sludge load is 0.05 ~ 0.1kgCOD/ (kgMLSSd)；Anaerobic hydrolysis COD removal rates 25% ~ 35%, micro- oxygen technique
COD removal rates ＞ 90%, aerobic process COD removal rates ＞ 75%, comprehensive water outlet COD is 80 ~ 100mg/L.
2. a kind of method handling decanedioic acid waste water using halophile, it is characterised in that：Step includes：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 8% ~ 10% salt concentration range, until system
In there is mud-water separation activated sludge of good performance；
（3）Using the suitable salt activated sludge of culture, decanedioic acid waste water is handled in the case where intaking salinity 8% ~ 10% and stablizing；
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 8% ~ 10% range；
Halophile flora is initially added concentration 500mg/L；
The salinity of halophile flora mixed culture is 8% ~ 10%；
Biochemical system uses anaerobic hydrolysis+micro- oxygen+aerobic process, 20 ~ 30 DEG C of water temperature of control, pH 7.0 ~ 8.0；Anaerobic technique is dirty
Mud load is 0.2 ~ 0.4kg COD/ (kgMLSSd), 0.2 ~ 0.5kgCOD/ of micro- oxygen process sludge load (kgMLSSd), good
Oxygen process sludge load is 0.05 ~ 0.1kgCOD/ (kgMLSSd)；Anaerobic hydrolysis COD removal rates 25% ~ 35%, micro- oxygen technique
COD removal rates ＞ 90%, aerobic process COD removal rates ＞ 75%, comprehensive water outlet COD is 60 ~ 80mg/L.
3. a kind of method handling decanedioic acid waste water using halophile, it is characterised in that：Step includes：
（1）Halophile flora is added into biochemical system；
（2）The biochemical system is mixed halophile flora in 8% ~ 10% salt concentration range, until system
In there is mud-water separation activated sludge of good performance；
（3）Using the suitable salt activated sludge of culture, decanedioic acid waste water is handled in the case where intaking salinity 8% ~ 10% and stablizing；
The suitable regulating reservoir residence time is set, decanedioic acid water inlet salinity is made to stablize in 8% ~ 10% range；
Halophile flora is initially added concentration 1000mg/L；
The salinity of halophile flora mixed culture is 8% ~ 10%；
Biochemical system uses anaerobic hydrolysis+aerobic process, 30 ~ 40 DEG C of water temperature of control, pH 6.5 ~ 8.5；Anaerobic hydrolysis process residence
Time 6h, COD removal rate 20% ~ 30%；The aerobic process residence time for 24 hours, 0.1 ~ 0.2 kgCOD/ (kgMLSS of sludge loading
D), COD removal rates ＞ 90%, water outlet COD ＜ 80mg/L.
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| CN103540555A (en) * | 2013-11-05 | 2014-01-29 | 中蓝连海设计研究院 | Method for preparing salt-tolerant microbial agent |
| CN104609541A (en) * | 2013-11-05 | 2015-05-13 | 中蓝连海设计研究院 | Sebacic acid wastewater direct biochemical treatment method without desalination |
| CN104609641A (en) * | 2013-11-05 | 2015-05-13 | 中蓝连海设计研究院 | Sebacic acid wastewater evaporative desalination pretreatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103540555A (en) * | 2013-11-05 | 2014-01-29 | 中蓝连海设计研究院 | Method for preparing salt-tolerant microbial agent |
| CN104609541A (en) * | 2013-11-05 | 2015-05-13 | 中蓝连海设计研究院 | Sebacic acid wastewater direct biochemical treatment method without desalination |
| CN104609641A (en) * | 2013-11-05 | 2015-05-13 | 中蓝连海设计研究院 | Sebacic acid wastewater evaporative desalination pretreatment method |
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