CN111995065A - Preparation for improving ammonia nitrogen index of polluted water body and preparation method and application thereof - Google Patents
Preparation for improving ammonia nitrogen index of polluted water body and preparation method and application thereof Download PDFInfo
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- CN111995065A CN111995065A CN202010856944.4A CN202010856944A CN111995065A CN 111995065 A CN111995065 A CN 111995065A CN 202010856944 A CN202010856944 A CN 202010856944A CN 111995065 A CN111995065 A CN 111995065A
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- 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)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention discloses a preparation for improving ammonia nitrogen index of polluted water, which comprises the following components: polyhydroxy fatty acid ester, a catalyst, a compound microbial agent and a porous material. Among them, polyhydroxyalkanoate is an intracellular polyester synthesized by many bacteria, exists mainly as a storage substance of a carbon source and an energy source in an organism, and has biodegradability. Molybdenum dioxide is added as a catalyst and a compound microbial agent, and besides conventional ammonia nitrogen reaction strains such as conventional nitrite oxidizing bacteria and aerobic denitrifying bacteria, streptomyces nigrocauda is added, so that the reaction efficiency of the nitrite oxidizing bacteria and the aerobic denitrifying bacteria is improved; in order to improve the reaction effect and prevent various raw materials from dispersing due to water entering and reducing the effect, the invention also adds the porous material to provide a reaction site for other raw materials and improve the reaction effect, and meanwhile, the porous material also has the effect of an adsorbent and is beneficial to reducing the content of ammonia nitrogen in the water body.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a preparation for improving ammonia nitrogen indexes of a polluted water body and a preparation method and application thereof.
Background
With the continuous development and growth of national economy and the continuous increase of population, the urbanization process is gradually accelerated, and the continuous and rapid development of industry, agriculture and other various industries, the land and water resources are continuously developed and utilized. However, when the change of the land covering over the sky occurs in our lives, due to disordered development and unreasonable planning, the attention degree of water resource treatment and water resource protection work in China is insufficient, so that much industrial and urban sewage is directly discharged without being treated in China, and a plurality of rivers and lakes with poor water quality appear near population and industrial centralized places. Groundwater in most cities in China is polluted to a certain degree, the cities are treated by related environmental protection technologies, but the cities are developed at a fast pace, the pollution speed is beyond our imagination, and the problems caused by highly polluted rivers and lakes are worried.
In order to provide a method for improving sewage with low cost, the invention provides a preparation for improving ammonia nitrogen indexes of a polluted water body, and a preparation method and application thereof.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a preparation for improving ammonia nitrogen indexes of a polluted water body and a preparation method and application thereof.
The technical scheme of the invention is as follows:
a preparation for improving ammonia nitrogen index of polluted water comprises the following components: polyhydroxy fatty acid ester, a catalyst, a compound microbial agent and a porous material.
Preferably, the preparation for improving the ammonia nitrogen index of the polluted water body comprises the following components in percentage by weight: 8-15% of polyhydroxy fatty acid ester, 0.2-0.5% of catalyst, 2-4% of compound microbial agent and the balance of porous material.
Preferably, the chemical structure of the polyhydroxyalkanoate is a polymer of six-carbon sugar, the molecular weight is between 100 ten thousand and 200 ten thousand, the basic unit is acetylglucosamine, the polymer is formed by connecting 1000-3000 acetylglucosamine residues through beta (1 → 4) glucoside chains, and the deacetylation degree is more than or equal to 80%.
Preferably, the catalyst is molybdenum dioxide.
Preferably, the compound microbial agent consists of bacillus subtilis, nitrite oxidizing bacteria, aerobic denitrifying bacteria and streptomyces nigrocauda.
Preferably, the porous material is any one of activated carbon, attapulgite and expanded vermiculite powder.
Preferably, the preparation method of the preparation for improving the ammonia nitrogen index of the polluted water body comprises the following steps:
A. mixing the porous material, the polyhydroxyalkanoate and the catalyst, grinding, and sieving with a 120-mesh sieve to obtain mixed powder;
B. roasting the mixed powder at the temperature of 300-350 ℃ for 2-3h, taking out the mixed powder, continuously grinding the mixed powder, and sieving the ground mixed powder with a 800-mesh sieve to obtain mixed fine powder;
C. and mixing the mixed fine powder and the compound microbial agent, and then uniformly stirring.
The preparation for improving the ammonia nitrogen index of the polluted water can be used for reducing the ammonia nitrogen index in the water, and is particularly suitable for rivers and lakes in cities.
The invention has the advantages that: the invention relates to a preparation for improving ammonia nitrogen index of polluted water, which comprises the following components: polyhydroxy fatty acid ester, a catalyst, a compound microbial agent and a porous material. Wherein, the polyhydroxyalkanoate is an intracellular polyester synthesized by a plurality of bacteria, mainly exists as a storage substance of a carbon source and an energy source in organisms, and has the physicochemical characteristics similar to synthetic plastics and special performances such as biodegradability not possessed by the synthetic plastics; molybdenum dioxide is added as a catalyst and a compound microbial agent, the compound microbial agent consists of bacillus subtilis, nitrous acid oxidizing bacteria, aerobic denitrifying bacteria and streptomyces darkling, besides conventional ammonia nitrogen reaction strains such as conventional nitrous acid oxidizing bacteria and aerobic denitrifying bacteria, the compound microbial agent also contains streptomyces darkling, and the strains are beneficial to improving the reaction efficiency of the nitrous acid oxidizing bacteria and the aerobic denitrifying bacteria; in order to improve the reaction effect and prevent various raw materials from dispersing due to water entering and reducing the effect, the invention also adds the porous material to provide a reaction site for other raw materials and improve the reaction effect, and meanwhile, the porous material also has the effect of an adsorbent and is beneficial to reducing the content of ammonia nitrogen in the water body.
Detailed Description
Example 1
A preparation for improving ammonia nitrogen index of polluted water comprises the following components in percentage by weight: 12 percent of polyhydroxy fatty acid ester, 0.3 percent of molybdenum dioxide, 2.5 percent of compound microbial agent and the balance of active carbon.
The chemical structure of the polyhydroxyalkanoate is a polymer of six-carbon sugar, the molecular weight is between 100 and 200 million, the basic unit is acetylglucosamine, the polymer is formed by connecting 1000-3000 acetylglucosamine residues through beta (1 → 4) glucoside chains, and the deacetylation degree is more than or equal to 80%.
The compound microbial agent consists of bacillus subtilis, nitrite oxidizing bacteria, aerobic denitrifying bacteria and streptomyces nigrocauda. The bacterial concentrations of the above bacterial agents are all 1.2 x 109cfu/g。
The preparation method of the preparation for improving the ammonia nitrogen index of the polluted water comprises the following steps:
A. mixing the porous material, the polyhydroxyalkanoate and the molybdenum dioxide, grinding, and sieving with a 120-mesh sieve to obtain mixed powder;
B. roasting the mixed powder at 320 ℃ for 2.5h, taking out the mixed powder, continuously grinding the mixed powder, and sieving the ground powder by a 800-mesh sieve to obtain mixed fine powder;
C. and mixing the mixed fine powder and the compound microbial agent, and then uniformly stirring.
Example 2
A preparation for improving ammonia nitrogen index of polluted water comprises the following components in percentage by weight: 15% of polyhydroxy fatty acid ester, 0.2% of molybdenum dioxide, 4% of compound microbial agent and the balance of attapulgite.
The chemical structure of the polyhydroxyalkanoate is a polymer of six-carbon sugar, the molecular weight is between 100 and 200 million, the basic unit is acetylglucosamine, the polymer is formed by connecting 1000-3000 acetylglucosamine residues through beta (1 → 4) glucoside chains, and the deacetylation degree is more than or equal to 80%.
The compound microbial agent is prepared from bacillus subtilis, nitrite oxidizing bacteria, aerobic denitrifying bacteria and streptomyces nigrocaudaAnd (4) forming. The bacterial concentrations of the above bacterial agents are all 1.0 x 109cfu/g。
The preparation method of the preparation for improving the ammonia nitrogen index of the polluted water comprises the following steps:
A. mixing the porous material, the polyhydroxyalkanoate and the molybdenum dioxide, grinding, and sieving with a 120-mesh sieve to obtain mixed powder;
B. roasting the mixed powder at 300 ℃ for 3h, taking out the mixed powder, continuously grinding the mixed powder, and sieving the ground powder by a 800-mesh sieve to obtain mixed fine powder;
C. and mixing the mixed fine powder and the compound microbial agent, and then uniformly stirring.
Example 3
A preparation for improving ammonia nitrogen index of polluted water comprises the following components in percentage by weight: 8 percent of polyhydroxy fatty acid ester, 0.5 percent of molybdenum dioxide, 2 percent of compound microbial agent and the balance of expanded vermiculite powder.
The chemical structure of the polyhydroxyalkanoate is a polymer of six-carbon sugar, the molecular weight is between 100 and 200 million, the basic unit is acetylglucosamine, the polymer is formed by connecting 1000-3000 acetylglucosamine residues through beta (1 → 4) glucoside chains, and the deacetylation degree is more than or equal to 80%.
The compound microbial agent consists of bacillus subtilis, nitrite oxidizing bacteria, aerobic denitrifying bacteria and streptomyces nigrocauda. The bacterial concentrations of the above bacterial agents are all 2.2 x 109cfu/g。
The preparation method of the preparation for improving the ammonia nitrogen index of the polluted water comprises the following steps:
A. mixing the porous material, the polyhydroxyalkanoate and the molybdenum dioxide, grinding, and sieving with a 120-mesh sieve to obtain mixed powder;
B. roasting the mixed powder at 350 ℃ for 2h, taking out the mixed powder, continuously grinding the mixed powder, and sieving the ground powder by a 800-mesh sieve to obtain mixed fine powder;
C. and mixing the mixed fine powder and the compound microbial agent, and then uniformly stirring.
Comparative example 1
The molybdenum dioxide in example 1 was removed, and the rest of the formulation and preparation method were unchanged.
Comparative example 2
The streptomyces nigrocauda in example 1 was removed, and the rest of the mixture ratio and the preparation method were unchanged.
Comparative example 3
The compound microbial agent in the example 1 is removed, and the rest proportion and the preparation method are unchanged.
Comparative example 4
The activated carbon in example 1 was removed, and the rest of the formulation and preparation method were unchanged.
Comparative example 5
The polyhydroxy fatty acid ester and the compound microbial agent in the embodiment 1 are removed, and the rest proportion and the preparation method are unchanged.
The pond water is taken as a test object, and the preparation for improving the ammonia nitrogen index of the polluted water body is adopted to treat the water body at different treatment times.
The adding amount of the preparations for improving the ammonia nitrogen index of the polluted water in the embodiments 1-3 and the comparative examples 1-5 is 25 mg/L; and a blank control group (without any treatment agent added) was added. The following test data were obtained, and are shown in table 1.
Table 1: the preparation for improving the ammonia nitrogen index of the polluted water in the embodiments 1-3 and the comparative examples 1-5 of the invention has the effect of improving the water body;
remarking: NH (NH)3the-N determination is carried out by adopting a nano-reagent spectrophotometry; the total phosphorus is measured by adopting an ammonium molybdate spectrophotometry; the COD determination adopts a COD rapid determination instrument.
According to the test data, the preparation for improving the ammonia nitrogen index of the polluted water has a very good effect on improving the water, and the molybdenum dioxide catalyst is added, so that the speed and the effect of improving the water are improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A preparation for improving ammonia nitrogen index of polluted water is characterized by comprising the following components: polyhydroxy fatty acid ester, a catalyst, a compound microbial agent and a porous material.
2. The preparation for improving the ammonia nitrogen index of the polluted water body as claimed in claim 1, which is characterized by comprising the following components in percentage by weight: 8-15% of polyhydroxy fatty acid ester, 0.2-0.5% of catalyst, 2-4% of compound microbial agent and the balance of porous material.
3. The preparation for improving ammonia nitrogen index of polluted water body as claimed in claim 1, wherein the chemical structure of said polyhydroxyalkanoate is polymer of six carbon sugar, the molecular weight is between 100 ten thousand and 200 ten thousand, the basic unit is acetylglucosamine, the polymer is formed by connecting 1000-3000 acetylglucosamine residues through beta (1 → 4) glucoside chain, and the degree of deacetylation is not less than 80%.
4. The preparation for improving the index of ammonia nitrogen in the polluted water body as claimed in claim 1, wherein the catalyst is molybdenum dioxide.
5. The preparation for improving the index of ammonia nitrogen in the polluted water body as claimed in claim 1, wherein the compound microbial agent is composed of bacillus subtilis, nitrous acid oxidizing bacteria, aerobic denitrifying bacteria and streptomyces nigrocasiae.
6. The preparation for improving the index of ammonia nitrogen in the polluted water body as claimed in claim 1, wherein the porous material is any one of activated carbon, attapulgite and expanded vermiculite powder.
7. The preparation for improving the index of ammonia nitrogen in polluted water according to any one of claims 1 to 6, wherein the preparation method of the preparation for improving the index of ammonia nitrogen in polluted water comprises the following steps:
A. mixing the porous material, the polyhydroxyalkanoate and the catalyst, grinding, and sieving with a 120-mesh sieve to obtain mixed powder;
B. roasting the mixed powder at the temperature of 300-350 ℃ for 2-3h, taking out the mixed powder, continuously grinding the mixed powder, and sieving the ground mixed powder with a 800-mesh sieve to obtain mixed fine powder;
C. and mixing the mixed fine powder and the compound microbial agent, and then uniformly stirring.
8. The preparation for improving the index of ammonia nitrogen in polluted water according to claims 1-6, which can be used for reducing the index of ammonia nitrogen in water, and is especially suitable for rivers and lakes in cities.
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| CN202010856944.4A CN111995065A (en) | 2020-08-24 | 2020-08-24 | Preparation for improving ammonia nitrogen index of polluted water body and preparation method and application thereof |
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| CN202010856944.4A CN111995065A (en) | 2020-08-24 | 2020-08-24 | Preparation for improving ammonia nitrogen index of polluted water body and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109294946A (en) * | 2018-09-27 | 2019-02-01 | 河北建设集团安装工程有限公司 | A kind of microbial bacterial agent and preparation method thereof improving dirt collecting pit pool ammonia nitrogen index |
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| CN108220186A (en) * | 2017-12-20 | 2018-06-29 | 无锡市拜沃特环保科技有限公司 | A kind of denitrogenation is except algae microbial bacterial agent and preparation method thereof |
| CN109294946A (en) * | 2018-09-27 | 2019-02-01 | 河北建设集团安装工程有限公司 | A kind of microbial bacterial agent and preparation method thereof improving dirt collecting pit pool ammonia nitrogen index |
| CN110523425A (en) * | 2019-08-21 | 2019-12-03 | 南昌大学 | A kind of full spectral response photochemical catalyst of molybdenum dioxide/N doping reduced graphene and preparation method |
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2020
- 2020-08-24 CN CN202010856944.4A patent/CN111995065A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085979A (en) * | 2014-07-01 | 2014-10-08 | 河海大学 | Nano biological filler for purifying aquaculture wastewater in biological filter tank and preparation method of nano biological filler |
| CN108220186A (en) * | 2017-12-20 | 2018-06-29 | 无锡市拜沃特环保科技有限公司 | A kind of denitrogenation is except algae microbial bacterial agent and preparation method thereof |
| CN109294946A (en) * | 2018-09-27 | 2019-02-01 | 河北建设集团安装工程有限公司 | A kind of microbial bacterial agent and preparation method thereof improving dirt collecting pit pool ammonia nitrogen index |
| CN110523425A (en) * | 2019-08-21 | 2019-12-03 | 南昌大学 | A kind of full spectral response photochemical catalyst of molybdenum dioxide/N doping reduced graphene and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109294946A (en) * | 2018-09-27 | 2019-02-01 | 河北建设集团安装工程有限公司 | A kind of microbial bacterial agent and preparation method thereof improving dirt collecting pit pool ammonia nitrogen index |
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Application publication date: 20201127 |
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