CN108946938A - A kind of application of compounded carbons medicament in the treatment of waste water - Google Patents
A kind of application of compounded carbons medicament in the treatment of waste water Download PDFInfo
- Publication number
- CN108946938A CN108946938A CN201811116149.0A CN201811116149A CN108946938A CN 108946938 A CN108946938 A CN 108946938A CN 201811116149 A CN201811116149 A CN 201811116149A CN 108946938 A CN108946938 A CN 108946938A
- Authority
- CN
- China
- Prior art keywords
- medicament
- acid solution
- compounded carbons
- treatment
- application
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention discloses a kind of application of compounded carbons medicament in the treatment of waste water, it is characterized in that the compounded carbons medicament is made of following weight ratio ingredient: sodium formate 0.2~1%, sodium acetate 4~6%, sodium propionate 4~6%, glucide 40~50%, water 35-45%；Wherein, glucide is the carbohydrate admixture of 300,000 mg/ml of COD >.The compounded carbons medicament is applied to wastewater treatment, and energy saving, high-quality, high-efficiency environment friendly, denitrification effect is 1.5 times of traditional Water Treatment Chemicals or more, can be good at adapting to and meets the market demand.
Description
Technical field
The invention belongs to water treatment fields, and in particular to a kind of application of compounded carbons medicament in the treatment of waste water.
Background technique
Because urbanization process is constantly accelerated, sanitary sewage discharge amount and Eutrophication materials increase, and cause lake, reservoir rich
Nutrient laden is got worse.Presently relevant department has required sewage treatment plant first with biological carbon and phosphorous removal, then could will be dirty
Water is discharged into receiving water body, to prevent polluting environment.Nitration denitrification denitrogenation is efficient bio-denitrification technology, at present in sewage treatment
Field has a wide range of applications.In terms of Microbial denitrogenation, when carrying out denitrification, heterotrophic denitrifying Bacteria need to be consumed as carbon
Source simultaneously provides the additional organic matter of energy.Existing sewage treatment plant of China, especially the sewage treatment plant in area is general in south China
The problem of store-through denitrification efficiency caused by denitrogenation carbon source deficiency reduces.In order to solve this problem, on the one hand can increase
Add the area of denitrification anoxic zone, extends the denitrification time to increase denitrification effect, but this method needs to extend sewage treatment
Factory, capital cost is high, and operability is not strong；It on the other hand, can be by adding outer carbon source to anoxic zone, with the side of supplementary carbon source
Formula improves denitrification rate, but if thrown outside, carbon source is excessive or selection carbon source is improper, not only increases systematic running cost use, also
Sewage treatment plant COD is set to have risk of exceeding criterion.
Currently, both at home and abroad externally carbon source add type and dosage has carried out a series of research, the different outer carbon of discovery
Source influences difference to the denitrification process of system, even if external carbon addition amount is identical, treatment effect is also different.Common external carbon
Source specifically includes that methanol, ethyl alcohol, glucose, sodium acetate etc..When methanol is as carbon source, the cost is relatively high, and the response time is slow,
It is ineffective when being added for sewage plant emergency with certain toxic action；And the denitrification rate of ethyl alcohol not as good as methanol and
Sodium acetate；Glucose is pretty good as additional carbon treatment effect, but, he easily causes thin as a kind of polymolecular compound
The mass propagation of bacterium leads to sludge bulking, increases water outlet COD, influences effluent quality, while compared with alcohols carbon source, glucose
The phenomenon that being more prone to produce nitrite nitrogen accumulation, so, it does not advocate and largely uses glucose as outer throwing carbon source；Sodium acetate
Advantage is the denitrification process that can make an immediate response, and emergency processing when water factory's operation can be used for, due to being small molecular organic acid
Reason, denitrifying bacterium are easy to utilize, and denitrification effect is best, but due to expensive, sludge yield is high, and current sewage
The sludge treatment problem of factory is also a biggish tackling key problem problem, so it is several that sodium acetate is applied to adding on a large scale for sewage plant
It can not.
Summary of the invention
The purpose of the invention is to overcome above-mentioned shortcoming to provide a kind of compounded carbons medicament in the treatment of waste water
Using meeting the needs of market is to high-quality and efficient Water Treatment Chemicals.
The purpose of the present invention is what is be accomplished by the following way:
A kind of compounded carbons medicament is applied in the treatment of waste water, which is made of following weight ratio ingredient:
Sodium formate 0.2~1%, sodium acetate 4~6%, sodium propionate 4~6%, glucide 40~50%, water 35-45%；
Wherein, glucide is the carbohydrate admixture of 300,000 mg/ml of COD >.
The compounded carbons medicament is preferably made of following weight ratio ingredient:
Sodium formate 0.5~1.0%, sodium acetate 4.5~5.5%, sodium propionate 5~6%, glucide 40~50%, water 40-
45%；Wherein, glucide is the carbohydrate admixture of 300,000 mg/ml of COD >.
The carbohydrate admixture is the two or more mixtures in glucose, fructose, xylose and sucrose.
The preparation method of above-mentioned compounded carbons medicament the following steps are included:
Formic acid solution, acetic acid solution and propionic acid solution are successively put into reaction kettle, it is molten to be slowly added to sodium hydroxide by several times
Liquid, remaining is water, and opens stirring, controls 65-75 DEG C of temperature, pH6.5-7.5 after stirring half an hour, stops that sodium hydroxide is added
Solution is slow added into glucide and is cured, and continuing stirring, ten thousand mg/L, filtering obtain compounded carbons to COD to 20-25
Medicament.
Above-mentioned formic acid solution, acetic acid solution, propionic acid solution mass concentration be 15-25%, preferably above-mentioned formic acid solution,
Acetic acid solution, propionic acid solution mass concentration be 20%, the use of formic acid solution, acetic acid solution, propionic acid solution and glucide
Measure weight ratio are as follows: 1-3:18.5-22:15.5-19.5:40-50.The mass concentration of the sodium hydroxide solution is 32%.
The aperture being filtered through is preferably 200~800 mesh.
The present invention using formic acid solution, acetic acid solution, three kinds of propionic acid solution acid carry out acid-base neutralization reactions generate sodium formates,
Sodium acetate, sodium propionate；A certain amount of exothermic reaction is generated during acid-base neutralization, thermogenetic temperature is put and is conducive to recombination reaction
Progress with mix full and uniform, but also can effectively control cost and quality.
Polymerization reaction of the present invention has just started when acid-base neutralization generates temperature, and entire polymerization process is small in 1.5-2
When or so, continue to cure for stirring 1 hour after glucide is added.Curing temperature of the present invention is at 50-60 DEG C, and preferably 50-55 DEG C,
Most preferably 50 DEG C.Step of the present invention makes curing temperature reach suitable range, curing temperature is too low be not achieved it is ripe
Change and require, react insufficient, temperature is excessively high, there are other side reactions, is easy to influence the performance of product, and increase reaction
The load of container shortens the service life of reaction vessel.
Preparation method of the present invention directly can also proportionally use raw material sodium formate, sodium acetate, sodium propionate, glucide
It is reacted with water, but the opposite above method, reaction is not easy to carry out sufficiently and cost can increase.
Above-mentioned compounded carbons medicament is mainly used for the processing of municipal sewage, industrial wastewater in application.In wastewater treatment
It is added after stoste is diluted to respective concentration according to medicament property and degree of water pollution, seriously polluted waste water may be selected
The mode that raw medicine is added directly.It adds dosage mainly to be determined by degree of water pollution, toss area and lab scale situation, usually every liter
Waste water adds 100~350mg (contaminated wastewater degree with total nitrogen index to measure).
The design principle of above-mentioned compounded carbons medicament:
Above-mentioned compounded carbons medicament is a kind of, efficient, quick, low consumption, nontoxic small molecule carbon source replenishers, is had both several
The advantages of additional carbon medicament, chemical property are stablized, and denitrification rate is fast, and sludge yield is low, and sludge strain adapts to fast, denitrogenation effect
Fruit is good, and processing cost is lower than other several conventional carbon source medicaments, and the emergency suitable for sewage plant adds processing, meets water quality discharge
It is required that while reach maximum economic effect, be a kind of stable inexpensive carbon source replenishers.
Biological denitrificaion needs to complete two processes of nitrification and denitrification.Ammonia nitrogen in waste water must be nitrified or be converted first
At nitrite and nitrate, then in denitrification process, nitrate is by as the simple carbonization of oxidation during cellular respiration
The keeping body for closing object is reduced into nitrogen.Therefore, it must have easily biology drop as the denitrification process of target to remove nitrate
The carbon source of solution exists.Its source includes the rotten to the corn object and all kinds of supernatants of cell during dissolubility BOD, endogenous denitrification in water inlet
Liquid reflux etc..When dissolved organic matter of intaking is insufficient and denitrogenation requires very high, then need through supplement chemical substance to provide
Carbon source required for denitrification process.
Above-mentioned compounded carbons medicament can substitute traditional additional carbon medicament, avoid traditional carbon source medicament high cost,
High risk problem, greatly improves nitric efficiency, reduces processing cost and sludge yield.
The compounded carbons medicament, is bronzing liquid, and PH (1% aqueous solution) 6.0-7.0 applies four viscosity (S, 20 DEG C) 6.0-
20.0, acetic acid sodium content, %, >=4.5, COD (mg/L) >=200,000 are suitable for municipal sewage and industrial wastewater, supplement sewage
Middle carbon source, nutritive proportion needed for adjusting microorganism fungus kind denitrogenation, it is recommended to use dosage: municipal sewage: 100-250 kg liquid produces
Product/kiloton water, industrial wastewater: >=150 kg liquid products/1 kiloton water.Shelf-life 12 months.
The selection of drug toss area of the present invention is related with medicament property, hydraulics, water pollution degree: 1, the present invention most
Good dispensing point is typically chosen in anoxic section, and effect is best, and medicine consumption most saves, while the influence generated to water quality is minimum；2, waterpower
Condition: waterpower intensity is big when mixing, and the time wants short, guarantees that medicament is sufficiently mixed with water；3, water pollution degree is higher more difficult
It is strong to variation water quality impact resistance since the medicament is neutrality when processing, effluent quality is not influenced, dosage can be continuously increased,
Ensure that standard water discharge is discharged.
By compounded carbons medicament of the present invention (being prepared according to 1 method of embodiment) and traditional water treatment agent using effect
It is compared.Toss area: anoxic section；Stoste: being first diluted with water to the dilution of 50% concentration by dosing method, so that medicament point
It dissipates uniformly, is stirring evenly and then adding into waste water.The results are shown in Table 1 for specific experiment.From data: with methanol, ethyl alcohol, acetic acid
Sodium, glucose are compared, and denitrification effect is their 1.5 times or more, and under identical efficiencies of nitrogen removal, compounded carbons medicine of the present invention
Agent dosage be only methanol, ethyl alcohol, sodium acetate, glucose dosage 2/3rds, greatly improve nitric efficiency, reduce place
Cost and sewage quantity are managed, preferable technical support is provided to sewage treatment, obtains good environmental benefit.
1 denitrification effect comparative test data table of table
As can be seen from Table 1, which belongs to energy saving, high-quality, efficient and environment-friendly type water treatment agent,
Denitrification effect is 1.5 times of traditional Water Treatment Chemicals or more, can be good at adapting to and meets the market demand.No matter in denitrogenation
In terms of effect or cost performance, compounded carbons medicament of the present invention will be better than other products in the same industry.
The present invention has the advantage that compared with traditional carbon source pharmaceutical products and technology
1, denitrification rate is fast, and direct denitrogenation chemical cost reduces at least 20%；
2, dosage is only the 2/3 of traditional medicament, reduces chemicals and adds influence to raw water quality, reduces simultaneously
The yield and processing difficulty of sludge；
3, direct liquid product adds, easy to use；
4, the high cost problem of high risk using hazardous chemical is avoided；
5, PH is neutrality, and water quality is applied widely, strong shock resistance.
Specific embodiment
The present invention is further elaborated by the following examples:
Embodiment 1
In gained compounded carbons medicament: sodium formate 0.5%, sodium acetate 5.5%, sodium propionate 5.5%, glucide (quality
Glucose and fructose than 2:1) 44.5%, remaining is water.
By mass concentration be 20% formic acid solution, mass concentration be 20% acetic acid solution and mass concentration be 20%
Propionic acid solution is successively put into reaction kettle according to 1.5%, 19%, 19% weight, is slowly added to the matter that weight is 16% by several times
The sodium hydroxide solution that concentration is 32% is measured, remaining is water, opens stirring, 65-75 DEG C of temperature is controlled after stirring half an hour,
PH6.5-7.5 stops that sodium hydroxide solution is added, is slow added into glucose and fructose (mass ratio 2:1), it is small to continue stirring 1
When cure, reaction end temperature be 50 DEG C (ten thousand mg/L of COD 20-25 at this time), filtering, obtain compounded carbons medicament.Its application is shown in
Foregoing invention content.
Embodiment 2
In gained compounded carbons medicament: sodium formate 0.7%, sodium acetate 5%, sodium propionate 5%, glucide (mass ratio 1:1
Xylose and fructose) 45.5%, remaining is water.
By mass concentration be 20% formic acid solution, mass concentration be 20% acetic acid solution and mass concentration be 20%
Propionic acid solution is successively put into reaction kettle according to 2%, 18.5%, 18.5% weight, and being slowly added to weight by several times is 15.5%,
The sodium hydroxide solution that mass concentration is 32%, remaining is water, and opens stirring, controls 65-75 DEG C of temperature after stirring half an hour,
PH6.5-7.5, then it is successively slowly added to xylose and fructose (mass ratio 1:1), continue to cure for stirring 1 hour, reaction end temperature
For 50 DEG C or so (ten thousand mg/L of COD to 20-25 at this time), filtering obtains compounded carbons medicament.
Toss area when wastewater treatment: biochemical anoxic section；Dosing method: being first diluted to the dilution of 50% concentration, so that medicine
Agent is uniformly dispersed, and sufficiently reacts, is stirring evenly and then adding into waste water with water.
Embodiment 3
In gained compounded carbons medicament: containing sodium formate 0.6%, sodium acetate 5.3%, sodium propionate 5%, glucide (quality
Xylose and sucrose than 1:1) 44.9%, remaining is water.
By mass concentration be 20% formic acid solution, mass concentration be 20% acetic acid solution and mass concentration be 20%
Propionic acid solution is successively put into reaction kettle according to 1.8%, 18.8%, 18.5% weight, is slowly added to charged material weight by several times and is
16%, the sodium hydroxide solution that mass concentration is 32%, remaining is water, opens stirring, controls temperature 65-75 after stirring half an hour
DEG C, pH6.5-7.5 stops that sodium hydroxide solution is added, then is successively slowly added to glucide, continues to cure for stirring 1 hour, instead
Answering outlet temperature is 50 DEG C or so (ten thousand mg/L of COD to 20-25 at this time), and filtering obtains compounded carbons medicament.
Toss area when wastewater treatment: biochemical anoxic section；Dosing method: being first diluted to the dilution of 50% concentration, so that medicine
Agent is uniformly dispersed, and sufficiently reacts, is stirring evenly and then adding into waste water with water.
Embodiment 4
In gained compounded carbons medicament: containing sodium formate 0.8%, sodium acetate 5.2%, sodium propionate 5.8%, glucide (wood
Sugar: sucrose mass ratio is 1:2) 41%, remaining is water.
By mass concentration be 20% formic acid solution, mass concentration be 20% acetic acid solution and mass concentration be 20%
Propionic acid solution is successively put into reaction kettle according to 4%, 18.6%, 19.4% weight, is slowly added to mass concentration by several times and is
32% sodium hydroxide solution, charged material weight 17%, remaining is water, opens stirring, controls temperature 65-75 after stirring half an hour
DEG C, pH6.5-7.5 stops that sodium hydroxide solution is added, then is successively slowly added to xylose and sucrose, continues to cure for stirring 1 hour,
Reaction end temperature is 50 DEG C or so, and filtering obtains compounded carbons medicament.
Toss area when wastewater treatment: biochemical anoxic section；Dosing method: being first diluted to the dilution of 50% concentration, so that medicine
Agent is uniformly dispersed, and sufficiently reacts, is stirring evenly and then adding into waste water with water.
Embodiment 5
In gained compounded carbons medicament: containing sodium formate 1.0%, sodium acetate 5.5%, sodium propionate 5.2%, glucide (matter
Amount is than the dextrose and saccharose for 2:1) 44%, remaining is water.
By mass concentration be 20% formic acid solution, mass concentration be 20% acetic acid solution and mass concentration be 20%
Propionic acid solution is successively put into reaction kettle according to 2.5%, 19%, 18.2% weight, is slowly added to mass concentration by several times and is
32% sodium hydroxide solution, the inventory 16.3% of sodium hydroxide solution, remaining is water, opens stirring, after stirring half an hour
65-75 DEG C of temperature, pH6.5-7.5 of control stops that sodium hydroxide solution is added, is slow added into dextrose and saccharose, continues to stir
It mixes 1 hour and cures, reaction end temperature is 50 DEG C or so, and filtering obtains compounded carbons medicament.Toss area when wastewater treatment: raw
Change anoxic section；Dosing method: being first diluted to the dilution of 50% concentration, so that medicament is uniformly dispersed, sufficiently reacts with water, stirring
It is added in waste water after uniformly.
Claims (10)
1. a kind of application of compounded carbons medicament in the treatment of waste water；The compounded carbons medicament is made of following weight ratio ingredient:
Sodium formate 0.2~1%, sodium acetate 4~6%, sodium propionate 4~6%, glucide 40~50%, water 35-45%；Wherein,
Glucide is the carbohydrate admixture of 300,000 mg/ml of COD >.
2. the application of compounded carbons medicament according to claim 1 in the treatment of waste water, it is characterised in that the compounded carbons
Medicament is made of following weight ratio ingredient:
Sodium formate 0.5~1.0%, sodium acetate 4.5~5.5%, sodium propionate 5~6%, glucide 40~50%, water 40-
45%；Wherein, glucide is the carbohydrate admixture of 300,000 mg/ml of COD >.
3. the application of compounded carbons medicament according to claim 1 in the treatment of waste water, it is characterised in that the carbohydrate
Mixture is the two or more mixtures in glucose, fructose, xylose and sucrose.
4. the application of compounded carbons medicament according to claim 1 in the treatment of waste water, it is characterised in that described is compound
The preparation method of carbon source medicament the following steps are included:
Formic acid solution, acetic acid solution and propionic acid solution are successively put into reaction kettle, are slowly added to sodium hydroxide solution by several times,
Yu Weishui, and stirring is opened, 65-75 DEG C of temperature, pH6.5-7.5 is controlled after stirring half an hour, stops that sodium hydroxide solution is added,
It is slow added into glucide to be cured, continuing stirring, ten thousand mg/L, filtering obtain compounded carbons medicament to COD to 20-25.
5. application according to claim 4, it is characterised in that the matter of the formic acid solution, acetic acid solution, propionic acid solution
Measuring concentration is 15-25%.
6. according to application as claimed in claim 4, it is characterised in that formic acid solution, acetic acid solution, propionic acid solution and the carbohydrate
The dosage weight ratio of substance are as follows: 1-3:18.5-22:15.5-19.5:40-50.
7. application according to claim 4, it is characterised in that the mass concentration of the sodium hydroxide solution is 32%.
8. application according to claim 4, it is characterised in that the aperture being filtered through is 200~800 mesh.
9. application according to claim 1, it is characterised in that place of the compounded carbons medicament for municipal sewage, industrial wastewater
Reason.
10. application according to claim 1, it is characterised in that the compounded carbons medicament adds dosage in the treatment of waste water and is
Every liter of waste water adds 100~350mg, dosing method be will add after the dilution of compounded carbons medicament raw medicine or in the form of raw medicine it is direct
It adds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116149.0A CN108946938A (en) | 2018-09-25 | 2018-09-25 | A kind of application of compounded carbons medicament in the treatment of waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116149.0A CN108946938A (en) | 2018-09-25 | 2018-09-25 | A kind of application of compounded carbons medicament in the treatment of waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108946938A true CN108946938A (en) | 2018-12-07 |
Family
ID=64472144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811116149.0A Pending CN108946938A (en) | 2018-09-25 | 2018-09-25 | A kind of application of compounded carbons medicament in the treatment of waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108946938A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156175A (en) * | 2019-06-10 | 2019-08-23 | 苏州政和化工环保有限公司 | A kind of compounded carbons medicament and preparation method thereof |
| CN110526419A (en) * | 2019-08-22 | 2019-12-03 | 天津壹新环保工程有限公司 | Carbon source medicament for sewage treatment |
| CN112358045A (en) * | 2020-11-10 | 2021-02-12 | 江苏蓝必盛化工环保股份有限公司 | Efficient denitrification carbon source and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168729A (en) * | 2006-10-25 | 2008-04-30 | 中国科学院上海生命科学研究院 | Highly effective hydrogen yield photosynthetic bacterium and application thereof |
| US20090211957A1 (en) * | 2007-05-04 | 2009-08-27 | Cormier Murphy J | Apparatus For Denitrifying Wastewater |
| CN104512969A (en) * | 2014-12-12 | 2015-04-15 | 南方医科大学 | Application of Aeromonas aquariorum ZX1 in reduction of sulfate |
| CN107777790A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | High calcium high-salt sewage denitrogenation carbon source |
-
2018
- 2018-09-25 CN CN201811116149.0A patent/CN108946938A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168729A (en) * | 2006-10-25 | 2008-04-30 | 中国科学院上海生命科学研究院 | Highly effective hydrogen yield photosynthetic bacterium and application thereof |
| US20090211957A1 (en) * | 2007-05-04 | 2009-08-27 | Cormier Murphy J | Apparatus For Denitrifying Wastewater |
| CN104512969A (en) * | 2014-12-12 | 2015-04-15 | 南方医科大学 | Application of Aeromonas aquariorum ZX1 in reduction of sulfate |
| CN107777790A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | High calcium high-salt sewage denitrogenation carbon source |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110156175A (en) * | 2019-06-10 | 2019-08-23 | 苏州政和化工环保有限公司 | A kind of compounded carbons medicament and preparation method thereof |
| CN110526419A (en) * | 2019-08-22 | 2019-12-03 | 天津壹新环保工程有限公司 | Carbon source medicament for sewage treatment |
| CN112358045A (en) * | 2020-11-10 | 2021-02-12 | 江苏蓝必盛化工环保股份有限公司 | Efficient denitrification carbon source and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108911131A (en) | A kind of compounded carbons medicament for wastewater treatment | |
| US20240067546A1 (en) | Device and Method for Enhancing Nitrogen and Phosphorus Removal Based on Multistage AO Partial Denitrification Coupled with Anammox in Combination with Sludge Hydrolytic Acidification | |
| CN101516791B (en) | System and method for eliminating sludge via ozonation | |
| CN108946938A (en) | A kind of application of compounded carbons medicament in the treatment of waste water | |
| CN104003520B (en) | A kind of solid carbon source and its preparation method and application | |
| CN102633359B (en) | Method for treating total nitrogen of nitrogen-containing chemical wastewater | |
| CN103910463A (en) | Novel process for BC urban sewage treatment | |
| CN111018137A (en) | Efficient composite carbon source medicament and preparation method thereof | |
| CN102701524B (en) | Advanced treatment device for vitamin C production waste water and application method thereof | |
| CN110156175A (en) | A kind of compounded carbons medicament and preparation method thereof | |
| CN102190371A (en) | Breeding method for anaerobic ammonium oxidation granular sludge | |
| CN103058455B (en) | System for treating printing and dyeing wastewater with activated coke adopted and process thereof | |
| CN116621339B (en) | Fine control denitrification control method and control device for sewage processor | |
| CN103739156A (en) | Method for performing biological denitrification of wastewater by using residual sludge and biological denitrification system for implementing same | |
| CN111675296B (en) | Composite efficient environment-friendly water treatment agent and preparation method and application thereof | |
| CN104445612A (en) | Method for rapidly starting denitrification-nitrification biochemical treatment system | |
| CN116177744A (en) | Sewage treatment system and method for improving efficient denitrification and dephosphorization of AOA technology coupled MBR | |
| CN214881022U (en) | Utilize sewage treatment system of sewage plant mud resourceization generation carbon source | |
| CN104828945A (en) | Method for treating low-carbon and high-nitrogen starch wastewater based on modified SBR method | |
| CN102718362A (en) | Biological treatment method for wastewater produced by acrylonitrile | |
| CN106277286A (en) | The removing method of activated sludge sticky inflation in biochemical system | |
| CN112759203A (en) | Sewage treatment device | |
| CN103910462B (en) | Containing the biochemical processing method of pyridines sewage | |
| CN111807511A (en) | Novel composite carbon source | |
| CN100542979C (en) | Adopt active sludge oxidation ditch technique to remove the method for sewage ammonia nitrogen |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
|
| RJ01 | Rejection of invention patent application after publication |