CN109354211A - The method for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate - Google Patents
The method for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate Download PDFInfo
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- CN109354211A CN109354211A CN201811266499.5A CN201811266499A CN109354211A CN 109354211 A CN109354211 A CN 109354211A CN 201811266499 A CN201811266499 A CN 201811266499A CN 109354211 A CN109354211 A CN 109354211A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
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- 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
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Abstract
The invention discloses a kind of methods for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate, including extracting the device of sodium acetate from waste water and configuring high efficiency composition carbon source sewage-treating agent by primary raw material of sodium acetate；Waste water is sequentially connected through the pipeline with pump to be neutralized kettle, takes off light kettle, adsorption tower, is concentrated by evaporation kettle, cooler, crystallization kettle, centrifuge and mother liquor storage tank are connected by pipeline, sodium acetate is obtained to crystallize into batch mixer, it is packed with after glucose, phosphorus nutritional agent mixed configuration, as high efficiency composition carbon source sewage-treating agent.Compared with prior art, the invention has the following advantages that the present invention recycles the sodium acetate that chemical engineering industry production process generates, and using sodium acetate as primary raw material, prepare efficient carbon source sewage-treating agent needed for denitrifying microorganism, resource utilization sodium acetate, recycling preparation facilities small investment of the invention, preparation process are simple, the efficient carbon source sewage-treating agent use process of preparation is simple, reduces the technical difficulty of charging.
Description
Technical field
The present invention relates to field of waste water treatment additional carbon technical fields, more particularly to use by-product sodium acetate system
The method of efficient carbon source sewage-treating agent needed for standby denitrifying microorganism.
Background technique
Acetic acid is a kind of important industrial chemicals, is widely used in the industrial circles such as chemical industry, light textile, medicine, dyestuff.Changing
In work industrial processes, acid binding agent or pH value adjustment agent frequently as reaction, the acetic acid for consuming or generating in industrial production,
Often entered in waste water in the form of acetate or acetic acid, such COD value of waste water is high, when handling using biochemical method, occupies industry
Biochemical treatment of wastewater load, while a large amount of sludge are generated, acetic acid is also not used, and results in waste of resources.
Meanwhile during sanitary sewage disposal, organic nitrogen, proteinic nitrogen in sewage etc. are first under aerobic or oxygen free condition
It is first oxidized or hydrolysis is ammonia nitrogen, be then oxidized to nitrate nitrogen under the action of aerobic autotrophic nitrifier.Then lacking
It under the conditions of oxygen, is acted on by denitrifying bacterium, and there is offer electronics and proton, nitrate nitrogen by carbon source to make nitre state as electron acceptor
Nitrogen is reduced into nitrogen and escapes from sewage, achievees the purpose that removing total nitrogen.During nitrification and denitrification, its nitric efficiency is influenced
Key factor be denitrifying carbon source concentration.In biological denitrification system, nitrifier will have sufficient carbon source as electron donor,
It can promote going on smoothly for denitrification.
It is low and be unable to satisfy normal life to be generally faced with raw sewage carbon-nitrogen ratio for major part urban wastewater treatment firm in China's at present
The problem of object denitrogenation dephosphorizing carbon source demand.Therefore, most of urban wastewater treatment firm is needed by throwing into sewage disposal system
Add a certain amount of additional carbon to improve system denitrogenation dephosphorizing efficiency.
Denitrifying bacterium is the facultative oxygen-starved microorganism of a kind of chemoheterotrophy, and reaction need to carry out under conditions of anoxic, instead
Denitrifying bacterium during answering is carried out anoxic and is exhaled using various organic matters as electron donor using nitrate as electron acceptor
It inhales.In the biochemical treatment denitrification process section of waste water, denitrifying bacterium living environment must assure that suitable carbon-nitrogen ratio and and
Phosphorus nutritional agent.
In addition, different types of additional carbon influences difference to the denitrification process of system, even if adding same amount of outer
Adding carbon source, the effect of processing is also not quite similar, and the additional carbon of some types can quickly respond after adding, and some
The carbon source of type then needs just play a role after one section of adaptation time and domestication, there is certain hysteresis quality, cannot be perfect
It optimizes the system operation on ground.
Currently, commercially available additional carbon, carbon source single variety, such as sodium acetate, methanol, sucrose or glucose, however it is anti-
Nitrifying bacteria community is the combination of the microorganism in different stages of growth of mixing, and the carbon source supplement of single variety is not able to satisfy each
The nutritional need of a stage microorganism, requires supplementation with several kinds of carbon source and phosphorus nutritional agent, and it is different that when supplement needs professional to match
Carbon source and phosphorus nutritional agent, operating process are complicated.
Therefore, how to provide one kind has the characteristics that energy saving, protection environment, operating process is simple, carbon source is wide in variety
The method for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate be those skilled in the art urgently
Problem to be solved.
Summary of the invention
In view of this, having the present invention provides one kind, energy saving, protection environment, operating process be simple, carbon source kind
The method for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate of the features such as more.
To achieve the above object, the invention provides the following technical scheme:
The method for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate characterized by comprising
The device of sodium acetate is extracted from waste water and configures high efficiency composition carbon source sewage-treating agent by primary raw material of sodium acetate；The dress
It sets including neutralizing kettle, taking off light kettle, adsorption tower, sorbent regeneration system, crystallization kettle, centrifuge and batch mixer；The waste water is through band
The pipeline of pump be sequentially connected neutralize kettle, take off light kettle, adsorption tower, be concentrated by evaporation kettle, by pipeline connect cooler, crystallization kettle, from
Scheming and mother liquor storage tank obtain sodium acetate and crystallize into batch mixer, and pack after glucose, phosphorus nutritional agent mixed configuration, as efficiently
Compounded carbons sewage-treating agent；Wherein, required raw material comprises the following raw materials by weight percent: 50~99% acetate trihydrate
Sodium, 1~50% cerelose, 0~1% phosphorus nutritional agent；The phosphorus nutritional agent is one of phosphate or a variety of；It is described
Phosphate is sodium phosphate, potassium phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate or tertiary sodium phosphate, preferably tertiary sodium phosphate.
Preferably, a kind of efficient carbon source sewage-treating agent needed for denitrifying microorganism is prepared with by-product sodium acetate above-mentioned
In method, process flow are as follows: waste water containing sodium acetate → neutralization → vacuum removal light component → filtering → adsorption bleaching removal of impurities →
Evaporation and concentration → crystallization → drying → mixture → packaging.
Preferably, a kind of efficient carbon source sewage-treating agent needed for denitrifying microorganism is prepared with by-product sodium acetate above-mentioned
In method, comprising the following steps:
A) waste water containing sodium acetate for generating chemical engineering industry production process is put into neutralizing tank, and adding sodium hydroxide is neutralized, and is adjusted
Save pH to 6.5 ~ 7；
B) above-mentioned neutralizer is squeezed into vacuum to take off in light kettle, removes the light component contained in filtrate, cool down 40 DEG C hereinafter, through pocket type
Filter is filtered to remove impurity；
C) by filtered solution, the adsorption tower of macroreticular resin is housed, removes the color and other organic impurities of solution, macropore
Resin is through resolution system regenerated from washing；
D) decoloration is removed into mixture solution and is concentrated into relative density 1.20~1.30 through evaporator, squeezed into crystallization kettle and crystallized, crystallized
It after 10 hours, dries and separates through centrifuge, obtain Sodium acetate trihydrate, mother liquor returns neutralization kettle and applies；
E) Sodium acetate trihydrate is pressed into following weight percent, mixed configuration is high efficiency composition carbon source sewage-treating agent, weight percent
The raw material of ratio forms: Sodium acetate trihydrate 50~99%, other carbon sources 1~50%, phosphorus nourishing agent 0~1%, mixed configuration is efficient
Compounded carbons sewage-treating agent.
Preferably, a kind of efficient carbon source sewage-treating agent needed for denitrifying microorganism is prepared with by-product sodium acetate above-mentioned
In method, adsorption bleaching removal of impurities can be adsorbed with powder electroless plating or macroporous absorbent resin in the step b), preferred macropore
Adsorb resin.
Preferably, a kind of efficient carbon source sewage-treating agent needed for denitrifying microorganism is prepared with by-product sodium acetate above-mentioned
In method, one of described other carbon sources in addition to sodium acetate or a variety of.
Preferably, a kind of efficient carbon source sewage-treating agent needed for denitrifying microorganism is prepared with by-product sodium acetate above-mentioned
In method, other carbon sources are cerelose, industrial sucrose, citric acid etc., preferably cerelose.
Preferably, a kind of efficient carbon source sewage-treating agent needed for denitrifying microorganism is prepared with by-product sodium acetate above-mentioned
In method, macroporous absorbent resin described in the step c) is styrene tyle macroporous adsorption resin.
It can be seen via above technical scheme that compared with prior art, the invention has the following advantages that
The sodium acetate that chemical engineering industry production process generates is recycled, and using sodium acetate as primary raw material, prepares the micro- life of denitrification
It is prepared by efficient carbon source sewage-treating agent needed for object, resource utilization sodium acetate, recycling preparation facilities small investment of the invention
Journey is simple, and the efficient carbon source sewage-treating agent use process of preparation is simple, reduces the technical difficulty of charging.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
The embodiment of the invention discloses one kind to have energy saving, protection environment, operating process is simple, carbon source is wide in variety etc.
The method for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate of feature.
Please refer to disclosed by the invention a kind of prepared at efficient carbon source sewage needed for denitrifying microorganism with by-product sodium acetate
The method for managing agent, specifically includes:
The device of sodium acetate is extracted from waste water and configures high efficiency composition carbon source sewage-treating agent by primary raw material of sodium acetate；Institute
Stating device includes neutralizing kettle, taking off light kettle, adsorption tower, sorbent regeneration system, crystallization kettle, centrifuge and batch mixer；The waste water
It is sequentially connected through the pipeline with pump and neutralizes kettle, take off light kettle, adsorption tower, be concentrated by evaporation kettle, cooler, crystallization are connected by pipeline
Kettle, centrifuge and mother liquor storage tank obtain sodium acetate and crystallize into batch mixer, and pack after glucose, phosphorus nutritional agent mixed configuration, as
High efficiency composition carbon source sewage-treating agent；Wherein, required raw material comprises the following raw materials by weight percent: 50~99% three water
Sodium acetate, 1~50% cerelose, 0~1% phosphorus nutritional agent；The phosphorus nutritional agent is one of phosphate or a variety of；
The phosphate is sodium phosphate, potassium phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate or tertiary sodium phosphate, preferably tertiary sodium phosphate.
The present invention in view of the above technology the problem of, recycle chemical engineering industry production process generate acetic acid or vinegar
Sour sodium prepares a kind of high efficiency composition carbon source sewage-treating agent containing compounded carbons and phosphorus nutritional agent, need to only supplement a kind of processing
Agent reduces the technical difficulty of charging；In order to solve the deficiency of the above technology, the present invention provides extract from chemical production wastewater
Sodium acetate simultaneously prepares a kind of high efficiency composition carbon source sewage-treating agent containing compounded carbons and phosphorus nutritional agent, will be useless containing sodium acetate
Water is neutralized, adsorption bleaching removal of impurities, is concentrated by evaporation, crystallization, obtains sodium acetate, prepares one kind as primary raw material using this sodium acetate and contain
There are the high efficiency composition carbon source sewage-treating agent of compounded carbons and phosphorus nutritional agent, resource utilization sodium acetate.
In order to further optimize the above technical scheme, process flow are as follows: waste water containing sodium acetate → neutralization → vacuum removal
Light component → filtering → adsorption bleaching removal of impurities → evaporation and concentration → crystallization → drying → mixture → packaging.
In order to further optimize the above technical scheme, comprising the following steps:
A) waste water containing sodium acetate for generating chemical engineering industry production process is put into neutralizing tank, and adding sodium hydroxide is neutralized, and is adjusted
Save pH to 6.5 ~ 7；
B) above-mentioned neutralizer is squeezed into vacuum to take off in light kettle, removes the light component contained in filtrate, cool down 40 DEG C hereinafter, through pocket type
Filter is filtered to remove impurity；
C) by filtered solution, the adsorption tower of macroreticular resin is housed, removes the color and other organic impurities of solution, macropore
Resin is through resolution system regenerated from washing；
D) decoloration is removed into mixture solution and is concentrated into relative density 1.20~1.30 through evaporator, squeezed into crystallization kettle and crystallized, crystallized
It after 10 hours, dries and separates through centrifuge, obtain Sodium acetate trihydrate, mother liquor returns neutralization kettle and applies；
E) Sodium acetate trihydrate is pressed into following weight percent, mixed configuration is high efficiency composition carbon source sewage-treating agent, weight percent
The raw material of ratio forms: Sodium acetate trihydrate 50~99%, other carbon sources 1~50%, phosphorus nourishing agent 0~1%, mixed configuration is efficient
Compounded carbons sewage-treating agent.
In order to further optimize the above technical scheme, adsorption bleaching removal of impurities can use powder electroless plating or big in step b)
Macroporous adsorbent resin absorption, preferred macroporous absorbent resin.
In order to further optimize the above technical scheme, compounded carbons are one of other carbon sources in addition to sodium acetate or more
Kind；Other carbon sources are cerelose, industrial sucrose, citric acid etc., preferably cerelose.
In order to further optimize the above technical scheme, phosphorus nutritional agent is one of phosphate or a variety of；Phosphate is phosphorus
Sour sodium, potassium phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, tertiary sodium phosphate etc.., preferred tertiary sodium phosphate.
In order to further optimize the above technical scheme, macroporous absorbent resin described in step c is styrene tyle macroporous absorption tree
Rouge；The solution after taking off gently is passed through macropore with certain flow velocity and inhaled wet method dress post application in the form of round resin column bed
Attached resin, the solution pass through resin column bed with the flow velocity of 0.5~2.0 times of resin total volume per hour, preferably per hour 0.8~
The flow velocity of 1.2 times of resin total volumes passes through resin column bed；The height of round resin column bed and diameter ratio (i.e. ratio of height to diameter) be 2 or
It is bigger, preferably greater than or equal to 4.
In order to further optimize the above technical scheme, substance that show color and impurity in the adsorbance of macroporous absorbent resin and solution
Concentration and resin characteristic it is related, in a particular embodiment using column bed lower end outlet color change as foundation, color is by colourless
Stop charging when thin out yellow, treating capacity is 1-15000 times of resin total volume.
In order to further optimize the above technical scheme, in the step c, the substance that show color in the solution is attracted to tree
On rouge, using parsing agent to the substance that show color being adsorbed on resin into parsing, parsing agent used can be methanol or ethanol solution,
It is preferred that methanol；The flow velocity for parsing agent be per hour be 0.5~1.0 times of resin total volume, preferred 0.75 times of resin totality per hour
Product；Strippant dosage is 0.5-20 times of styrene tyle macroporous adsorption resin admission space；After the regeneration of organic solvent regenerative agent
It can put back into, the parsing agent containing colour developing organic matter, can be used repeatedly as parsing agent after rectifying column rectifying.
In order to further optimize the above technical scheme, specific embodiment are as follows: clethodim intermediate 6- second sulfydryl-heptane -3
Alkene -2- ketone production process, in the washing water of generation containing 15% sodium acetate, 5% methanol, color is fallow.From washing water
The middle method extracted sodium acetate and prepare efficient carbon source sewage-treating agent, it is characterised in that the following steps are included:
A) sodium acetate washing water will be contained to be put into neutralizing tank, adding sodium hydroxide is neutralized, and pH to 6.5 ~ 7 is adjusted；
B) above-mentioned neutralizer is squeezed into vacuum to take off in light kettle, removes the light component contained in filtrate, cool down 40 DEG C hereinafter, through pocket type
Filter is filtered to remove impurity；
C) by filtered solution, the adsorption tower of macroreticular resin is housed, removes the color and other organic impurities of solution, macropore
Resin is through resolution system regenerated from washing；
D) decoloration is removed into mixture solution and is concentrated into relative density 1.20~1.30 through evaporator, squeezed into crystallization kettle and crystallized, crystallized
It after 10 hours, dries and separates through centrifuge, obtain Sodium acetate trihydrate, mother liquor returns neutralization kettle and applies.
E) by Sodium acetate trihydrate, cerelose, tertiary sodium phosphate, by Sodium acetate trihydrate 90%, cerelose 9%, phosphoric acid
1% weight percent of trisodium is sequentially added and is stirred in mixing machine 30 minutes, and mixed configuration is at high efficiency composition carbon source sewage
Manage agent.
In order to further optimize the above technical scheme, specific embodiment: Binzhou sewage treatment plant (ordinary municipal sewage
Factory), biochemical treatment of wastewater influent COD cr is 250mg/L or so, ammonia nitrogen 36mg/L, PH6.4, and processing water is respectively
20000 ton/days.Since ammonia nitrogen value is higher, removal rate can be improved by adding suitable carbon source；
Contrast groups: 99% cerelose；
Experimental group: the high efficiency composition carbon source sewage-treating agent that embodiment 1 configures；
Configure control group glucose and experimental group high efficiency composition carbon source sewage-treating agent to water respectively 15% solution (weight
Percentage)；
The control group nutrient solution that adds of sewage disposal system is 2000 kg/days, and by operation in 15 days, total nitrogen removal effect was not
Good, water outlet COD is 80mg/L or so, and total nitrogen is 17mg/L or so.Use experimental group nutrient solution instead, dosage is still 2000 kilograms/
It, the experimental group water outlet COD by operations in 15 days is 40mg/L or so, and total nitrogen is 5mg/L or so；
The ammonia nitrogen removal of contrast groups is ineffective, and the general CODcr that is discharged is 50mg/L or so, and ammonia nitrogen is 6~7mg/L；And it tests
It is 40mg/L or so that group has just reached water outlet CODcr after using 1 day, and ammonia nitrogen is 2~3mg/L, and significant effect improves.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. the method for preparing efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate, which is characterized in that packet
It includes: extracting the device of sodium acetate from waste water and configure high efficiency composition carbon source sewage-treating agent by primary raw material of sodium acetate；Institute
Stating device includes neutralizing kettle, taking off light kettle, adsorption tower, sorbent regeneration system, crystallization kettle, centrifuge and batch mixer；The waste water
It is sequentially connected through the pipeline with pump and neutralizes kettle, take off light kettle, adsorption tower, be concentrated by evaporation kettle, cooler, crystallization are connected by pipeline
Kettle, centrifuge and mother liquor storage tank obtain sodium acetate and crystallize into batch mixer, and pack after glucose, phosphorus nutritional agent mixed configuration, as
High efficiency composition carbon source sewage-treating agent；Wherein, required raw material comprises the following raw materials by weight percent: 50~99% three water
Sodium acetate, 1~50% cerelose, 0~1% phosphorus nutritional agent；The phosphorus nutritional agent is one of phosphate or a variety of；
The phosphate is sodium phosphate, potassium phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate or tertiary sodium phosphate, preferably tertiary sodium phosphate.
2. according to claim 1 prepare efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate
Method, which is characterized in that its process flow are as follows: waste water containing sodium acetate → neutralization → vacuum removal light component → filtering → absorption is de-
Color removal of impurities → evaporation and concentration → crystallization → drying → mixture → packaging.
3. according to claim 2 prepare efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate
Method, which comprises the following steps:
A) waste water containing sodium acetate for generating chemical engineering industry production process is put into neutralizing tank, and adding sodium hydroxide is neutralized, and is adjusted
Save pH to 6.5 ~ 7；
B) above-mentioned neutralizer is squeezed into vacuum to take off in light kettle, removes the light component contained in filtrate, cool down 40 DEG C hereinafter, through pocket type
Filter is filtered to remove impurity；
C) by filtered solution, the adsorption tower of macroreticular resin is housed, removes the color and other organic impurities of solution, macropore
Resin is through resolution system regenerated from washing；
D) decoloration is removed into mixture solution and is concentrated into relative density 1.20~1.30 through evaporator, squeezed into crystallization kettle and crystallized, crystallized
It after 10 hours, dries and separates through centrifuge, obtain Sodium acetate trihydrate, mother liquor returns neutralization kettle and applies；
E) Sodium acetate trihydrate is pressed into following weight percent, mixed configuration is high efficiency composition carbon source sewage-treating agent, weight percent
The raw material of ratio forms: Sodium acetate trihydrate 50~99%, other carbon sources 1~50%, phosphorus nourishing agent 0~1%, mixed configuration is efficient
Compounded carbons sewage-treating agent.
4. according to claim 3 prepare efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate
Method, which is characterized in that adsorption bleaching removal of impurities can be adsorbed with powder electroless plating or macroporous absorbent resin in the step b),
Preferred macroporous absorbent resin.
5. according to claim 1 prepare efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate
Method, which is characterized in that one of described other carbon sources in addition to sodium acetate are a variety of.
6. according to claim 5 prepare efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate
Method, which is characterized in that other carbon sources are cerelose, industrial sucrose, citric acid etc., preferably cerelose.
7. according to claim 3 prepare efficient carbon source sewage-treating agent needed for denitrifying microorganism with by-product sodium acetate
Method, which is characterized in that macroporous absorbent resin described in the step c) is styrene tyle macroporous adsorption resin.
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| CN103865796A (en) * | 2014-03-21 | 2014-06-18 | 杭州水询环保科技有限公司 | Microbial complex nutrient solution for biological treatment of wastewater |
| CN106800506A (en) * | 2016-12-30 | 2017-06-06 | 杭州垚信生物科技有限公司 | A kind of preparation method of anhydrous sodium acetate |
| CN107602373A (en) * | 2017-09-13 | 2018-01-19 | 山西恒德益生物科技有限公司 | A kind of method that sodium acetate is extracted from furfural production waste water |
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- 2018-10-29 CN CN201811266499.5A patent/CN109354211A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5352825A (en) * | 1993-07-06 | 1994-10-04 | Hoarmann & Reimer Corp. | Recovery of organic acid salts from impure process streams by addition of bases |
| CN102583853A (en) * | 2012-01-05 | 2012-07-18 | 浙江金科过氧化物股份有限公司 | Combined treatment method for two kinds of waste acid water generated in tetraacetylethylenediamine (TAED) production |
| CN103043843A (en) * | 2012-12-28 | 2013-04-17 | 山东金缘生物科技有限公司 | Device and method for extracting sodium acetate from tower bottom wastewater of primary tower in furfural production |
| CN103865796A (en) * | 2014-03-21 | 2014-06-18 | 杭州水询环保科技有限公司 | Microbial complex nutrient solution for biological treatment of wastewater |
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