CN115072865A - Biological denitrification composite carbon source for sewage treatment and application thereof - Google Patents
Biological denitrification composite carbon source for sewage treatment and application thereof Download PDFInfo
- Publication number
- CN115072865A CN115072865A CN202210749096.6A CN202210749096A CN115072865A CN 115072865 A CN115072865 A CN 115072865A CN 202210749096 A CN202210749096 A CN 202210749096A CN 115072865 A CN115072865 A CN 115072865A
- Authority
- CN
- China
- Prior art keywords
- carbon source
- sewage treatment
- composite carbon
- denitrification
- biological denitrification
- 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.)
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- 239000010865 sewage Substances 0.000 title claims abstract description 51
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 44
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 235000000346 sugar Nutrition 0.000 claims abstract description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 6
- 239000008103 glucose Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 3
- 229930091371 Fructose Natural products 0.000 claims description 3
- 239000005715 Fructose Substances 0.000 claims description 3
- 235000013379 molasses Nutrition 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 229920002472 Starch Polymers 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 abstract description 5
- 229940023144 sodium glycolate Drugs 0.000 abstract description 5
- 239000008107 starch Substances 0.000 abstract description 5
- 235000019698 starch Nutrition 0.000 abstract description 5
- JEJAMASKDTUEBZ-UHFFFAOYSA-N tris(1,1,3-tribromo-2,2-dimethylpropyl) phosphate Chemical compound BrCC(C)(C)C(Br)(Br)OP(=O)(OC(Br)(Br)C(C)(C)CBr)OC(Br)(Br)C(C)(C)CBr JEJAMASKDTUEBZ-UHFFFAOYSA-N 0.000 abstract description 5
- 150000001298 alcohols Chemical class 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 150000008163 sugars Chemical class 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 235000017281 sodium acetate Nutrition 0.000 description 4
- 239000001632 sodium acetate Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a biological denitrification composite carbon source for sewage treatment, which comprises the following raw materials in percentage by mass: 15-25% of sodium glycolate, 10-15% of alcohols, 10-20% of sugars, 1-5% of soluble starch and 50-60% of water, and the adoption of the sewage treatment biological denitrification composite carbon source for sewage denitrification treatment has the advantages of low cost, high denitrification reaction rate, low sludge yield, high COD equivalent weight and good denitrification effect.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a biological denitrification composite carbon source for sewage treatment and application thereof.
Background
At present, domestic urban domestic sewage treatment plants and industrial sewage treatment plants throw in external carbon sources when treating sewage, the denitrification efficiency of the sewage is improved by a denitrification mode of biological nitrification and denitrification, different external carbon sources can influence the biological denitrification effect, and most of the external carbon sources used by the sewage treatment plants mainly comprise methanol, sodium acetate, glucose, sucrose and the like. When the methanol is used as an external carbon source, the response time is slow, and the methanol has certain toxic action on human bodies, so that the effect is poor when the methanol is used for emergency application in a sewage plant; the sodium acetate has good denitrification effect, can immediately respond to a denitrification process, can still activate denitrifying bacteria at low temperature, and can be used for emergency treatment during the operation of a water plant, but the price of the sodium acetate is high, the sludge yield is high, and the problem of sludge treatment of the current sewage plant also becomes a difficult problem, so that the application of the sodium acetate to large-scale throwing of the sewage plant becomes a pain place, the effect of glucose as an external carbon source is good, but the mass propagation of bacteria is easily caused, the sludge is expanded, the COD (chemical oxygen demand) of effluent is increased, and the quality of the effluent is influenced. Therefore, in view of the current problems, sewage treatment plants need an improved external carbon source for denitrification of sewage treatment.
Disclosure of Invention
The invention aims to provide a biological denitrification composite carbon source for sewage treatment, which has the advantages of high COD equivalent weight, low cost, high denitrification reaction rate and low sludge yield.
In order to achieve the above purpose, the solution of the invention is:
a biological denitrification composite carbon source for sewage treatment comprises the following raw materials in percentage by mass:
the alcohol is methanol or ethanol;
the sugar is one or a combination of more of glucose, brown sugar, fructose and molasses;
the COD equivalent of the biological denitrification composite carbon source for sewage treatment is 30-50 ten thousand mg/L.
A biological denitrification composite carbon source for sewage treatment comprises the following raw materials in percentage by mass:
a biological denitrification composite carbon source for sewage treatment comprises the following raw materials in percentage by mass:
the invention also provides application of the biological denitrification composite carbon source for sewage treatment, in particular application of the biological denitrification composite carbon source for sewage treatment in sewage treatment.
After the technical scheme is adopted, the biological denitrification composite carbon source for sewage treatment has the following advantages:
1. the composite carbon source is a mixed carbon source which is scientifically matched and mainly comprises sodium glycolate, alcohols, saccharides and soluble starch according to use requirements, has various components, and can effectively avoid short plates of a single carbon source;
2. most raw materials are from waste materials and waste liquid generated in the production process of the food industry, for example, sodium glycolate is from waste mother liquid generated in the production process of food additives, soluble starch can be from leftover materials generated in food factories, and the cost is low;
3. the carbon sources in the raw materials are all micromolecular organic carbon with higher COD, so that the nitrification and denitrification reactions during denitrification are easy to carry out, and the reaction rate is high;
4. the affinity with sewage is particularly strong, various biological bacteria are easy to domesticate, the domestication time is greatly shortened, the denitrification efficiency is high, and the denitrification rate can reach more than 70 percent and can reach 90 percent for common domestic sewage and mixed sewage.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
A biological denitrification composite carbon source for sewage treatment comprises the following raw materials in percentage by mass:
the alcohol is methanol or ethanol;
the sugar is one or a combination of more of glucose, brown sugar, fructose and molasses;
the COD equivalent of the biological denitrification composite carbon source for sewage treatment is 30-50 ten thousand mg/L.
A biological denitrification composite carbon source for sewage treatment comprises the following raw materials in percentage by mass:
among them, sodium glycolate was purchased from Jiangsu Tailida New materials GmbH, saccharide was purchased from the Longhai sugar factory, Fujian province, and soluble starch was purchased from Maixiangfang food (Fujian) GmbH.
Example 1
A biological denitrification composite carbon source for sewage treatment comprises the following raw materials in percentage by mass:
example 2
A biological denitrification composite carbon source for sewage treatment comprises the following raw materials in percentage by mass:
application case
Step 1, respectively preparing a composite carbon source according to the use amounts of the components in the embodiment 1 and the embodiment 2, and the specific process comprises the following steps: mixing sodium glycolate in water under stirring, then sequentially adding alcohols (methanol or ethanol), saccharides (glucose or brown sugar) and soluble starch, and mixing uniformly;
step 2, detecting the actual COD value of the composite carbon source in each embodiment, wherein the COD detection method adopts HJ 828-;
TABLE 1 COD equivalent of composite carbon sources for the examples
Step 3, taking a certain sewage treatment plant in Fujian as a test object, adding the composite carbon source in the embodiment 1 into a sewage treatment system, and treating sewage in a grit chamber, an anaerobic chamber, an anoxic chamber, an aerobic chamber and a secondary sedimentation chamber from an inlet in sequence, wherein the sewage treatment capacity is 600 tons/hour, the consumption of the composite carbon source is 82.5 kg/hour, and the adding cost of the composite carbon source corresponding to each ton of sewage is 0.144 yuan/ton;
and 4, verifying the denitrification effect of the composite carbon source by detecting the total nitrogen and ammonia nitrogen contents of the sewage entering the grit chamber, the total nitrogen and ammonia nitrogen contents treated by the anaerobic chamber, the anoxic chamber and the aerobic chamber and the total nitrogen and ammonia nitrogen contents treated by the secondary sedimentation chamber, wherein the detection results are shown in Table 2.
TABLE 2 denitrification results for complex carbon sources
As can be seen from table 2: in the nitration reaction treatment process of sewage from an inlet through a grit chamber, an anaerobic tank, an anoxic tank and an aerobic tank (inlet), the nitration rate of ammonia nitrogen reaches 97.6 percent; in the denitrification reaction treatment process of the sewage at the inlet of the aerobic tank to the secondary sedimentation tank, the denitrification rate reaches 73.9 percent; in the whole treatment process of sewage from an inlet to a grit chamber, an anaerobic chamber, an anoxic chamber, an aerobic chamber and a secondary sedimentation chamber (outlet), the denitrification rate of the biological denitrification composite carbon source for sewage treatment reaches 73.1 percent, the biological denitrification composite carbon source has good nitrification and denitrification effects in the whole sewage treatment process, and finally has good denitrification effect.
The above embodiments are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (4)
1. A biological denitrification composite carbon source for sewage treatment is characterized in that: the material comprises the following raw materials by mass percent:
the alcohol is methanol or ethanol;
the sugar is one or a combination of more of glucose, brown sugar, fructose and molasses;
the COD equivalent of the biological denitrification composite carbon source for sewage treatment is 30-50 ten thousand mg/L.
2. The sewage treatment biological denitrification composite carbon source of claim 1, which is characterized in that: the material comprises the following raw materials by mass percent:
3. the sewage treatment biological denitrification composite carbon source of claim 1, which is characterized in that: the material comprises the following raw materials by mass percent:
4. the use of the biological denitrification composite carbon source for sewage treatment according to claim 1 in sewage treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210749096.6A CN115072865A (en) | 2022-06-28 | 2022-06-28 | Biological denitrification composite carbon source for sewage treatment and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210749096.6A CN115072865A (en) | 2022-06-28 | 2022-06-28 | Biological denitrification composite carbon source for sewage treatment and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115072865A true CN115072865A (en) | 2022-09-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210749096.6A Pending CN115072865A (en) | 2022-06-28 | 2022-06-28 | Biological denitrification composite carbon source for sewage treatment and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115072865A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2042473A2 (en) * | 2007-09-26 | 2009-04-01 | Brenntag Holding GmbH | Compound and method for biologically denitrifying waste water |
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| CN104370312A (en) * | 2014-06-18 | 2015-02-25 | 江南大学 | Recycling processing technology for high-salt wastewater during carboxymethyl cellulose production |
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| CN109205904A (en) * | 2018-10-12 | 2019-01-15 | 江苏盛勤环境工程有限公司 | The producing wastewater treatment of sodium cellulose glycolate |
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-
2022
- 2022-06-28 CN CN202210749096.6A patent/CN115072865A/en active Pending
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