CN106554123B - A kind of deep treatment method of epoxychloropropane waste water - Google Patents
A kind of deep treatment method of epoxychloropropane waste water Download PDFInfo
- Publication number
- CN106554123B CN106554123B CN201510635030.4A CN201510635030A CN106554123B CN 106554123 B CN106554123 B CN 106554123B CN 201510635030 A CN201510635030 A CN 201510635030A CN 106554123 B CN106554123 B CN 106554123B
- Authority
- CN
- China
- Prior art keywords
- waste water
- calcium
- salt
- calcium ion
- raw wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a kind of deep treatment methods of epoxychloropropane waste water, are passed through excessive CO into the cooling raw wastewater to be processed in part first2Then gas quickly mixes the waste water with part raw wastewater, so that composite waste temperature is greater than 60 DEG C, realize calcium ions precipitate removal；Ammonium sulfate is added in water outlet and further precipitates removal calcium ion, finally carries out biochemical treatment together with precipitating；Microbial growth promoters are added during biochemical treatment, the promotor includes metal salt and polyamines, wherein metal salt is 40~100 parts by weight, and polyamines are 5~30 parts by weight, and the metal salt is made of calcium salt, mantoquita, magnesium salts and/or ferrous salt.The present invention uses and is passed through excessive CO2And most of calcium ion is removed using raw wastewater basicity and waste heat precipitating, then the further deliming of ammonium sulfate is added, the advanced treating that waste water is finally realized in the method that biochemical treatment adds microbial growth promoters, has the characteristics that treatment process is simple, treatment effeciency is high, processing cost is low.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to a kind of deep treatment method of epoxychloropropane waste water.
Background technique
Epoxychloropropane is a kind of important organic synthesis intermediate, mainly for the production of epoxy resin, synthetic glycerine, chlorine
The fine chemical products such as hydrin rubber.Propylene high-temperature chloridising is the classical way of industrial production epoxychloropropane, technical process
The sewage of middle generation has the characteristics that water is big, salinity is high, calcium ion concentration is high, and independent processing difficulty is big, costly.Phase at present
Enterprise is closed substantially using biochemical processing process after mixing with the waste water of other process units, but frequently results in biochemical treatment system
Phenomena such as system doped calcium causes inorganic constituents in activated sludge to increase, and Sludge Property deteriorates.
Increasingly strict with environmental protection requirement, being processed into for epoxychloropropane waste water restricts industrial water saving development
Main problem severely impacts the economic benefit and social benefit of enterprise.Therefore epoxychloropropane waste water pretreatment deliming from
Son, reduction salt content are very crucial.High slat-containing wastewater can be handled by the way of evaporation, but epoxychloropropane
The waste water water generated in production process is big, and what document " chlorine industry " was recorded uses Ca(OH)2Epoxy is produced as good fortune agent
Chloropropane, propylene high-temperature chloridising one ton of epoxychloropropane of every production will generate 45~55 tons of good fortune waste water.Obviously it uses
The mode of evaporation pre-processes because of higher cost waste water, and enterprise is unbearable.External useful membrane technology handles epoxy
Propane produces the waste water of chloride containing calcium, but since costly use is restricted.Waste water highly concentrated for calcium ions, can be with
It is handled using the method for converting precipitation of calcium carbonate for calcium ion.
CN200710011998.5 discloses a kind of method of the production waste water of processing propylene oxide, and main includes three steps
It is rapid: (1) to be reacted using ammonium hydrogen carbonate with calcium chloride, generate calcium bicarbonate and ammonium chloride；(2) calcium bicarbonate thermally decomposes to generate carbonic acid
Calcium precipitate, water and carbon dioxide；(3) carbon dioxide reaction that the calcium hydroxide in waste water and calcium bicarbonate thermal decomposition generate, it is raw
At precipitation of calcium carbonate and water.Although the invention eliminates calcium ion, but need to add ammonium hydrogen carbonate make calcium in waste water from
Son forms calcium bicarbonate, and needs through computer heating control thermal decomposition temperature.CN201110135948.4 discloses a kind of chloropharin
The method of method epoxychloropropane saponification waste-water resource utilization, feature are to convert precipitating carbonic acid for the calcium chloride in saponification waste-water
Calcium, while obtaining the light salt brine containing organic matter.The invention is each led into calcium carbonate step of converting into pretreatment feed liquid
It carbon dioxide and sodium carbonate liquor is added generates precipitating, precipitating is generated according to carbon dioxide solubility in water and calcium carbonate
Condition and the common sense of chemical balance, the present invention do not increase external condition, and being simply passed through carbon dioxide can only be such that calcium hydroxide converts
At precipitation of calcium carbonate, for largely with calcium ion existing for calcium chloride, dependence is that sodium carbonate is added to generate precipitation of calcium carbonate, because
This needs to be added a large amount of sodium carbonate, and processing cost is very high.Up to the present, the calcium ion in epoxychloropropane waste water does not have still
There is a kind of economic, mature, reliable processing method.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of deep treatment methods of cost-effective epoxychloropropane waste water.
The present invention using being passed through excess carbon dioxide and removing most of calcium ion using basicity and the waste heat precipitating of raw wastewater, then plus
Enter the further deliming of ammonium sulfate, waste water is finally realized using the method for adding microbial growth promoters in biochemical treatment unit
Advanced treating has the characteristics that treatment process is simple, treatment effeciency is high, processing cost is low.
The deep treatment method of epoxychloropropane waste water of the present invention, including following content: the to be processed original cooling to part
It is passed through excess carbon dioxide gas in waste water, then quickly mixes the waste water with part raw wastewater, so that composite waste temperature
Greater than 60 DEG C, the precipitating removal of calcium ion is realized；Ammonium sulfate is added in water outlet and further precipitates removal calcium ion, finally together with heavy
Shallow lake carries out biochemical treatment together；Microbial growth promoters are added during biochemical treatment, realize the advanced treating of waste water；Institute
Stating growth promoter includes metal salt and polyamines, and wherein metal salt is 40~100 parts by weight, preferably 50~80 weight
Part, polyamines are 5~30 parts by weight, preferably 10~20 parts by weight；The metal salt by calcium salt, mantoquita, magnesium salts and/or
Ferrous salt composition.
Metal salt in growth promoter of the present invention can be calcium salt, magnesium salts and mantoquita, wherein Ca2+、Mg2+And Cu2+
Molar ratio be (5~15): (5~25): (0.5~5), preferably (8~12): (10~20): (1~4)；Or calcium salt,
Ferrous salt and mantoquita, wherein Ca2+、Fe2+And Cu2+Molar ratio be (5~15): (1~8): (0.5~5), preferably (8~
12): (2~6): (1~4)；Either calcium salt, magnesium salts, ferrous salt and mantoquita, wherein Ca2+、Mg2+、Fe2+And Cu2+Molar ratio
For (5~15): (5~25): (1~8): (0.5~5), preferably (8~12): (10~20): (2~6): (1~4).
Calcium salt in growth promoter of the present invention is CaSO4Or CaCl2, preferably CaSO4；Magnesium salts is MgSO4Or
Mg Cl2, preferably MgSO4；Ferrous salt is FeSO4Or FeCl2, preferably FeSO4；Mantoquita is CuSO4Or CuCl2, preferably
CuSO4.Polyamines in the microbial growth promoters are the mixture of spermine, spermidine or both.
Growth promoter of the present invention can also include inorganic acid azanol, content be 0.5~15 parts by weight, preferably 2
~10 parts by weight.The inorganic acid azanol is one or more of hydroxylamine hydrochloride, hydroxyl sulfate or phosphatic hydroxylamine, preferably
Hydroxyl sulfate.The matrix that the addition of inorganic acid azanol can be used as azanol oxygen also enzyme directly participate in nitrobacteria metabolic process,
Shorten enzymatic reaction process, while can be with accelerated cell growth as the activator of cell.
The water quality of raw wastewater of the present invention are as follows: temperature is 80~100 DEG C, and calcium ion concentration is 7000~9000mg/L,
COD is 1500~2500mg/L, and B/C is 0.2~0.4, and total salt quantity is 1.5%~3.0%.The raw wastewater to be processed of the cooling is
Raw wastewater is cooled to room temperature by finger, and as 20~30 DEG C.
Following reaction mainly occurs in the technical solution adopted in the present invention:
The present invention is by being passed through excess carbon dioxide into cooling raw wastewater to be processed, so that existing in waste water a large amount of
HCO3 -, when containing Ca2+And HCO3 -This effluent part mixed with raw wastewater after, can use raw wastewater basicity and waste heat hair
Reaction in raw (6) makes calcium ion form precipitation of calcium carbonate and be removed.It is passed through excessive carbon dioxide gas and elder generation mainly occurs
Reaction is dissolved after precipitating: carbon dioxide first generates precipitation of calcium carbonate with the calcium binding in waste water, with excess carbon dioxide
Addition, pH value reduction, have the generation of a large amount of bicarbonate radicals.
It is of the present invention to be passed through excessive carbon dioxide gas by the way of air-dissolving air-float, by portion first in dissolving
Divide in cooling raw wastewater to be processed and be passed through excessive carbon dioxide gas, dissolved air water is formed under a certain pressure, then in gas
It is mixed in floating trough with part raw wastewater to be processed.By the way of air-dissolving air-float, it on the one hand can to dissolve more in dissolved air water
More carbon dioxide guarantee making full use of for carbon dioxide；On the other hand it can guarantee the amplitude that the temperature of handled waste water reduces
It is small.The operating pressure of the air-dissolving air-float is 0.4~1.0MPa.The carbon dioxide dissolved in dissolved air water is two dissolved under normal pressure
3~5 times of carbonoxide, can significantly improve HCO in waste water3 -Concentration.
Contain a large amount of Ca in the present invention2+And HCO3 -Waste water and raw wastewater hybrid reaction during, according in natural water body
The fractions distribution situation of carbonic acid, in order to enable the concentration highest of bicarbonate radical, controls composite waste by supplement strong base solution
PH between 7~8, highly basic is sodium hydroxide or potassium hydroxide, be thereby may be ensured that in system containing more bicarbonates
Root helps to improve the removal effect of calcium ion.It with the addition of highly basic, has a large amount of hydrogen ion and is neutralized, so that in (2)
Balance carry out to the right, be conducive to generate a large amount of HCO3 -, to generate CaCO3Precipitating.It is given birth to after being passed through carbon dioxide gas
At calcium bicarbonate part decomposition reaction can occur and generate calcium carbonate, the carbon dioxide released under alkaline condition can also be into
Calcium binding in one step and raw wastewater, ultimately forms precipitation of calcium carbonate and then decomposing and in conjunction with two kinds of reactions.
The present invention will contain a large amount of HCO3 -Waste water mixed with raw wastewater, mixed proportion needs to be come according to the temperature of waste water true
It is fixed, guarantee that water temperature can be greater than 60 DEG C and be advisable after mixing, preferably 60~80 DEG C.
It precipitates as calcium carbonate by 80% or more calcium ion in the above process treated waste water, waste water
In remaining calcium ion reselection ammonium sulfate be added be further processed, be finally precipitated out in the form of calcium sulfate；Ammonium sulfate
Additional amount is that otherwise will lead to the initial ammonia nitrogen concentration mistake of subsequent biochemical treatment process so that calcium ion removal rate is up to 95% or more
Height influences treatment effect.
The present invention is added ammonium sulfate precipitation treated waste water and carries out biochemical treatment together with precipitating.At the biochemistry
Reason can be it is known in those skilled in the art, such as A/O, SBR(sequencing batch active sludge), MBR (membrane biological process), it is excellent
Choosing uses membrane biological process.The dosage of the growth promoter is according to 10~40mg/L of promoter concentration in sewage disposal system
It is added, preferably 20~30mg/L is added.Biochemical unit control treatment temperature be 20~40 DEG C, pH value be 7.5~
8.5, dissolved oxygen concentration is 1.0~5.0mg/L.COD concentration is lower than 45mg/L in waste water after treatment, and ammonia nitrogen concentration is lower than
10mg/L meets qualified discharge requirement.
Compared with prior art, the invention has the following advantages:
1, the present invention uses microbial growth promoters in biochemical unit, so that denitrification microorganism is in metal in activated sludge
Under the collective effect of salt, polyamines and inorganic acid azanol, the fast breeding of cell is realized, improve the denitrogenation speed of whole system
Rate, nitrogen-containing pollutant that can further in degrading waste water, while can further utilize organic contamination difficult to degrade in waste water
Object, reduces effluent COD concentration, the final advanced treating for realizing waste water, and maintenance system is run steadily in the long term.
2, the present invention is this is passed through excess carbon dioxide gas and the side using basicity in raw wastewater and waste heat combination deliming
Formula, it is ensured that make full use of cheap carbon dioxide to complete the precipitating removal reaction of calcium ion, than individually use sodium carbonate or
Person first leads to carbon dioxide and the mode of sodium carbonate is added to save significantly on added amount of chemical again, saves pretreatment cost.Pretreated
The waste heat in raw wastewater can be made full use of in journey to decompose calcium bicarbonate, and the drop of waste water temperature is realized while forming precipitating
It is low.It is passed through carbon dioxide by the way of air-dissolving air-float and is mixed with raw wastewater, the solubility of carbon dioxide can be significantly improved,
To improve HCO in waste water3 -Concentration, facilitate the efficient removal of calcium ion.
3, ammonium sulfate is added and carries out depth deliming, and bioanalysis is used together together with precipitating and is handled, it is on the one hand remaining
Calcium ion facilitate the progress of biochemical reaction, another aspect calcium sulfate precipitation has certain suction-operated, facilitates activity
The granulating of sludge and the building of biomembrane, improve the removal effect of pollutant.
Specific embodiment
Effect of the invention is further illustrated below with reference to embodiment, but is not so limited the present invention.
Metal salt solution is prepared first, in accordance with the ratio and formula of 1 growth promoter of table, it is preceding by polyamines using
It is added in metal salt solution with inorganic acid azanol, growth promoter I-IV is prepared, the promoter concentration is 0.5g/
L。
The formula and ratio of 1 growth promoter of table
Embodiment 1
Certain enterprise generates the waste water of a large amount of calcium ions in epoxychloropropane production process, and COD concentration therein is
1500mg/L, B/C:0.20, calcium ion concentration 7500mg/L, total salt quantity: 2.0%, 80 DEG C of temperature.Using the method for the present invention into
Row processing, is passed through excessive carbon dioxide gas using general microporous aeration mode first, then by this part cooling waste water with
Part raw wastewater mixing to be processed, the temperature for mixing waste water is controlled using the flow of raw wastewater at 60~70 DEG C, and mixing
It is automatically replenished sodium hydroxide by system in reaction process to control pH between 7~8, calcium ion in waste water after treatment
Concentration is 1400mg/L, removal rate 81.3%.Then ammonium sulfate 2600mg/L is added into waste water, generates calcium sulfate precipitation, it is real
The removal of existing 95% or more calcium ion.Above-mentioned waste water is entered into subsequent biochemical unit with precipitating together and carries out biochemical treatment, it is biochemical single
Member adds microbial growth promoters I according to promoter concentration 30mg/L in sewage disposal system, in waste water after treatment
COD concentration is lower than 10mg/L lower than 45mg/L, ammonia nitrogen concentration, and calcium ion concentration is lower than 350mg/L, solves calcium ion to biochemistry
While the blocking of unit handler and influence to biochemical system, Biochemical Treatment is improved, epoxy chloropropionate is realized
The advanced treating of alkane waste water.
Embodiment 2
Certain enterprise generates the waste water of a large amount of calcium ions in epoxychloropropane production process, and COD concentration therein is
1500mg/L, B/C:0.20, calcium ion concentration 7500mg/L, total salt quantity: 2.0%, 80 DEG C of temperature.Using the method for the present invention into
Row processing, by the way of air-dissolving air-float, part cooling waste water dissolves a large amount of carbon dioxide, air-dissolving air-float after passing through dissolving
Operating pressure be 0.4~0.6MPa, be then released into subsequent air flotation slot and be sufficiently mixed with raw wastewater, it is useless using original
The flow of water is automatically replenished hydrogen-oxygen by system during hybrid reaction to control the temperature for mixing waste water at 60~70 DEG C
Change sodium to control pH between 7~8, calcium ion concentration is 1000mg/L, removal rate 86.7% in waste water after treatment；
Then a small amount of ammonium sulfate 1700mg/L is added into waste water, generates calcium sulfate precipitation, realizes the removal of 95% or more calcium ion.
Above-mentioned waste water and precipitating are entered into subsequent biochemical unit together, biochemical unit is according to promoter concentration in sewage disposal system
25mg/L adds microbial growth promoters II, and COD concentration is lower than 40mg/L, ammonia nitrogen concentration in the waste water after biochemical treatment
Lower than 8mg/L, calcium ion concentration is lower than 300mg/L, solves calcium ion to the blocking of biochemical unit processing equipment and to biochemistry
The influence of system realizes the advanced treating of epoxychloropropane waste water.
Embodiment 3
Certain enterprise generates the waste water of a large amount of calcium ions in epoxychloropropane production process, and COD concentration therein is
2500mg/L, B/C:0.4, calcium ion concentration 9000mg/L, total salt quantity: 3.0%, 100 DEG C of temperature.Using the method for the present invention into
Row processing, by the way of air-dissolving air-float, part cooling waste water dissolves a large amount of carbon dioxide, air-dissolving air-float after passing through dissolving
Operating pressure be 0.6~0.8MPa, be discharged into subsequent air flotation slot and be sufficiently mixed with raw wastewater, utilize raw wastewater
Flow is automatically replenished potassium hydroxide by system during hybrid reaction to control the temperature for mixing waste water at 70~80 DEG C
PH is controlled between 7~8, calcium ion concentration is 1300mg/L, removal rate 85.6% in waste water after treatment；Then
A small amount of ammonium sulfate 2200mg/L is added into waste water, generates calcium sulfate precipitation, realizes 95% or more calcium ion removal rate；It is above-mentioned
Waste water enters subsequent biochemical unit with precipitating together, and biochemical unit is added according to promoter concentration 25mg/L in sewage disposal system
Microbial growth promoters III, COD concentration is lower than 40mg/L after biochemical treatment, and ammonia nitrogen concentration is lower than 5mg/L, and calcium ion is dense
Degree is lower than 400mg/L.It solves blocking of the calcium ion to biochemical unit processing equipment and the influence to biochemical system, realizes ring
The advanced treating of oxygen chloropropane waste water.
Embodiment 4
Certain enterprise generates the waste water of a large amount of calcium ions in epoxychloropropane production process, and COD concentration therein is
1500mg/L, B/C:0.20, calcium ion concentration 7500mg/L, total salt quantity: 2.0%, 80 DEG C of temperature.Using the method for the present invention into
Row processing, by the way of air-dissolving air-float, part cooling waste water dissolves a large amount of carbon dioxide, air-dissolving air-float after passing through dissolving
Operating pressure be 0.4~0.6MPa, be then released into subsequent air flotation slot and be sufficiently mixed with raw wastewater, it is useless using original
The flow of water is automatically replenished hydrogen-oxygen by system during hybrid reaction to control the temperature for mixing waste water at 60~70 DEG C
Change sodium to control pH between 7~8, calcium ion concentration is 1000mg/L, removal rate 86.7% in waste water after treatment；
Then a small amount of ammonium sulfate 1700mg/L is added into waste water, generates calcium sulfate precipitation, realizes the removal of 95% or more calcium ion.
Above-mentioned waste water and precipitating are entered into subsequent biochemical unit together, biochemical unit is according to promoter concentration in sewage disposal system
20mg/L adds microbial growth promoters IV, and COD concentration is lower than 30mg/L, ammonia nitrogen concentration in the waste water after biochemical treatment
Lower than 5mg/L, calcium ion concentration is lower than 300mg/L, solves calcium ion to the blocking of biochemical unit processing equipment and to biochemistry
The influence of system realizes the advanced treating of epoxychloropropane waste water.
Comparative example 1
Treatment process and operating condition are identical as embodiment 1, embodiment 2 and embodiment 3 respectively, the difference is that: it is raw
Change unit and do not add promotor, then the biochemical unit effluent COD concentration after processing is between 55~60mg/L, ammonia nitrogen
For concentration between 10~15mg/L, biochemical unit water outlet does not reach advanced treating.
Claims (12)
1. a kind of deep treatment method of epoxychloropropane waste water, it is characterised in that including following content: to part it is cooling to
It is passed through excess carbon dioxide gas in processing raw wastewater, then quickly mixes the waste water with part raw wastewater, so that mixing is useless
Coolant-temperature gage is greater than 60 DEG C, realizes the precipitating removal of calcium ion；Ammonium sulfate is added in water outlet and further precipitates removal calcium ion, finally
Biochemical treatment is carried out together with precipitating；Microbial growth promoters are added during biochemical treatment, realize the depth of waste water
Processing, the growth promoter include metal salt and polyamines, and wherein metal salt is 40~100 parts by weight, more amines
Matter is 5~30 parts by weight, and the metal salt is made of calcium salt, mantoquita, magnesium salts and/or ferrous salt.
2. according to the method described in claim 1, it is characterized by: the metal salt in the growth promoter is calcium salt, magnesium salts
And mantoquita, wherein Ca2+、Mg2+And Cu2+Molar ratio be (5~15): (5~25): (0.5~5) or calcium salt, ferrous salt
And mantoquita, wherein Ca2+、Fe2+And Cu2+Molar ratio be (5~15): (1~8): (0.5~5) or calcium salt, magnesium salts, Asia
Molysite and mantoquita, wherein Ca2+、Mg2+、Fe2+And Cu2+Molar ratio be (5~15): (5~25): (1~8): (0.5~5).
3. method according to claim 1 or 2, it is characterised in that: the calcium salt in the growth promoter is CaSO4Or
CaCl2, magnesium salts MgSO4Or MgCl2, ferrous salt FeSO4Or FeCl2, mantoquita CuSO4Or CuCl2。
4. according to the method described in claim 1, it is characterized by: polyamines in the growth promoter be spermine,
The mixture of spermidine or both.
5. according to the method described in claim 1, containing it is characterized by: further include inorganic acid azanol in the growth promoter
Amount is 0.5~15 parts by weight.
6. according to the method described in claim 5, it is characterized by: the inorganic acid azanol be hydroxylamine hydrochloride, hydroxyl sulfate or
One or more of person's phosphatic hydroxylamine, content are 2~10 parts by weight.
7. according to the method described in claim 1, it is characterized by: the water quality of raw wastewater to be processed are as follows: temperature is 80~100
DEG C, calcium ion concentration is 7000~9000mg/L, and COD is 1500~2500mg/L, and B/C is 0.2~0.4, total salt quantity 1.5%
~3.0%.
8. method according to claim 1 or claim 7, it is characterised in that: the raw wastewater to be processed of the cooling refers to original is useless
20~30 DEG C are water-cooled to, control composite waste temperature is 60~80 DEG C.
9. method according to claim 1 or claim 7, it is characterised in that: supplement sodium hydroxide or potassium hydroxide solution control are mixed
The pH for closing waste water is 7~8.
10. according to the method described in claim 1, it is characterized by: described is passed through excessive carbon dioxide gas using molten
The pneumatically supported mode of gas, the operating pressure of air-dissolving air-float are 0.4~1.0MPa, and the carbon dioxide dissolved in dissolved air water is molten under normal pressure
3~5 times of the carbon dioxide of solution.
11. according to the method described in claim 1, it is characterized by: the additional amount of ammonium sulfate is so that calcium ion removal rate reaches
95% or more.
12. according to the method described in claim 1, it is characterized by: the dosage of the growth promoter according to sewage at
10~40mg/L of promoter concentration is added in reason system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510635030.4A CN106554123B (en) | 2015-09-30 | 2015-09-30 | A kind of deep treatment method of epoxychloropropane waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510635030.4A CN106554123B (en) | 2015-09-30 | 2015-09-30 | A kind of deep treatment method of epoxychloropropane waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106554123A CN106554123A (en) | 2017-04-05 |
| CN106554123B true CN106554123B (en) | 2019-04-12 |
Family
ID=58416176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510635030.4A Active CN106554123B (en) | 2015-09-30 | 2015-09-30 | A kind of deep treatment method of epoxychloropropane waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106554123B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275843A (en) * | 2018-02-27 | 2018-07-13 | 河南君和环保科技有限公司 | A kind of acrylonitrile-chlorinated method production epoxychloropropane waste water integrated treatment process of high temperature |
| CN109354331A (en) * | 2018-12-11 | 2019-02-19 | 辽宁中舟得水环保科技有限公司 | A kind of method of biologic packing material anaerobic technique processing industrial wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51765A (en) * | 1974-06-25 | 1976-01-06 | Tokai Pulp Kk | Haisuishoriho oyobi sochi |
| CN1161938A (en) * | 1996-04-09 | 1997-10-15 | 徐功明 | Method for comprehensively treating waste liquid from paper-making |
| CN101337745A (en) * | 2007-07-06 | 2009-01-07 | 辽宁大泽环保工程有限公司 | Method for processing production waste water of propylene oxide |
| CN102320641A (en) * | 2011-05-25 | 2012-01-18 | 吉林大学 | Resource utilization method for saponification waste water producing epoxypropane by chlorohydrination process |
| CN103304017A (en) * | 2013-06-28 | 2013-09-18 | 华南理工大学 | Treatment method for synchronously removing COD (Chemical Oxygen Demand) and rigidity of waste water |
-
2015
- 2015-09-30 CN CN201510635030.4A patent/CN106554123B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51765A (en) * | 1974-06-25 | 1976-01-06 | Tokai Pulp Kk | Haisuishoriho oyobi sochi |
| CN1161938A (en) * | 1996-04-09 | 1997-10-15 | 徐功明 | Method for comprehensively treating waste liquid from paper-making |
| CN101337745A (en) * | 2007-07-06 | 2009-01-07 | 辽宁大泽环保工程有限公司 | Method for processing production waste water of propylene oxide |
| CN102320641A (en) * | 2011-05-25 | 2012-01-18 | 吉林大学 | Resource utilization method for saponification waste water producing epoxypropane by chlorohydrination process |
| CN103304017A (en) * | 2013-06-28 | 2013-09-18 | 华南理工大学 | Treatment method for synchronously removing COD (Chemical Oxygen Demand) and rigidity of waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106554123A (en) | 2017-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109052641B (en) | Coupling filler autotrophic denitrification biological filter and application | |
| CN106957070A (en) | A kind of rapidly and efficiently ammonia nitrogen removal agent and its preparation method and application | |
| CN110078221A (en) | A kind of synchronous denitrification dephosphorizing light material and its preparation and application method | |
| CN105712520B (en) | A kind of processing method of epoxychloropropane waste water | |
| CN105481179B (en) | A kind of dense salt sewage zero-discharge processing method | |
| Ni et al. | Denitrification processes for wastewater treatment | |
| CN103663840B (en) | Method for treating acrylonitrile and polymerization wastewater thereof | |
| KR20130111921A (en) | Simultaneous anoxic biological phosphorus and nitrogen removal with energy recovery | |
| CN105712452B (en) | A method of calcium ion in removal epoxychloropropane waste water | |
| WO2020046679A1 (en) | Denitrification of water using bacteria | |
| CN106554123B (en) | A kind of deep treatment method of epoxychloropropane waste water | |
| CN107381892A (en) | A kind of handling process of high-concentration ammonia nitrogenous wastewater | |
| CN105643857A (en) | Lung type aeration sponge for improving aeration efficiency in sewage treatment | |
| CN108101310B (en) | Device and method for treating desulfurization and denitrification wastewater of thermal power plant | |
| CN109987750A (en) | A method of the promotion Fenton oxidation mediated by calcium and organic acid complex compound | |
| CN108483616A (en) | A kind of ammonia nitrogen removal agent | |
| CN109879538A (en) | A kind of high total nitrogen, high salinity antibiotics pharmacy waste water processing method | |
| CN106470950B (en) | Bioremediation and biological treatment device | |
| CN107304075B (en) | Wastewater treatment method for synchronously removing nitrogen, phosphorus and ammonia nitrogen | |
| KR20140103693A (en) | Apparatus for treatment of wastewater capable of recovery of nitrogen and phosphate and method for treatment of wastewater | |
| CN108862827A (en) | A kind of processing method of ammonia nitrogen waste water | |
| CN105731631A (en) | Lung-type aeration sponge beneficial for improving aeration efficiency in sewage treatment technology | |
| JP5118376B2 (en) | Water treatment method and water treatment apparatus | |
| CN105692856B (en) | A kind of modification dolomite quenched for desalination water | |
| CN105668790A (en) | Lung-type aeration sponge for improving aeration efficiency in waste water treatment technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |