CN115259343A - Simple microbial carrier and preparation method thereof - Google Patents
Simple microbial carrier and preparation method thereof Download PDFInfo
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- CN115259343A CN115259343A CN202110481987.3A CN202110481987A CN115259343A CN 115259343 A CN115259343 A CN 115259343A CN 202110481987 A CN202110481987 A CN 202110481987A CN 115259343 A CN115259343 A CN 115259343A
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- powder
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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
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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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a microbial carrier and a preparation method thereof, wherein the preparation method comprises the following steps: zeolite powder, coal ash powder, volcanic powder and soil. The microbial carrier provided by the application has a large specific surface area, and can provide sufficient space for microbial load; and can provide favorable conditions for the growth of microorganisms and improve the sewage treatment capacity of the microorganisms.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a simple microorganism carrier and a preparation method thereof.
Background
In recent years, efforts have been made to protect the environment. However, the ecological pollution and prevention and control of various river channels are still not optimistic, water eutrophication and a large amount of nutrients such as nitrogen, phosphorus and the like flow into lakes and river channels, which causes rapid propagation of algae and other plankton, decrease of dissolved oxygen in water, deterioration of water quality, massive death of fish and other organisms, formation of water bloom and generation of unpleasant odor. Meanwhile, the method has negative effects on the local economic development and the construction of the ecological environment in the area, and needs to be treated urgently. With the enhancement of environmental awareness, ecological concepts and the improvement of living standard, the requirement of repairing seriously damaged river ecosystem is more and more urgent.
The existing black and odorous river channel elimination method comprises the following steps: dredging, water changing, chemical treatment and the like. Dredging generally refers to removing the sludge at the river bottom by manual or mechanical means, so as to remove the pollutants deposited in the sludge at the river bottom. The method can damage the original biological population structure and habitat of the river, weaken the self-cleaning function of the river, and have the defects of long construction period, short after-effect period, high cost and the like. The water changing means that a fresh clean water source is introduced into a polluted river channel, so that the polluted water body is diluted. Although the method is rapid and long in duration, the maintenance cost is high, and the water resource waste is serious. The chemical treatment is a technology for removing water layer pollutants by adding a chemical agent to improve water quality, and has the advantages of high treatment speed and relatively low cost. However, the existing chemical treatment method has the disadvantages of undesirable treatment effect on severely polluted water bodies, especially water bodies with various pollutants, short after-effect period and difficult long-term maintenance.
Disclosure of Invention
The invention aims to provide a microbial carrier and a preparation method thereof, wherein the microbial carrier can be used for carrying microbes in river sewage treatment and can provide a good growth environment for the microbes.
Another object of the present invention is to provide a method for preparing the rewritable scratch-resistant film.
In order to achieve the purpose, the invention adopts the following technical scheme: providing a microbial carrier comprising: zeolite powder, coal ash powder, volcanic powder and clay.
Preferably, the microbial carrier comprises 15% -25% of zeolite powder, 15% -25% of fly ash powder, 5% -15% of volcanic powder and 45% -55% of soil.
Preferably, the composite material comprises 20% of zeolite powder, 20% of fly ash powder, 10% of volcanic powder and 50% of soil.
Preferably, the zeolite includes zeolite L, zeolite X, zeolite Y, offretite, zeolite omega, mordenite, MAZ, MEI, FAO, EMT, ZSM-3, ZSM-4, ZSM-18, ZSM-20, MFI, MTW, MTT, EUO, MEV, TON, zeolite beta, ZSM-34, ZSM-38, ZSM-48, gallosilicates and titanosilicates. One or more mixtures thereof.
Preferably, the zeolite is a large pore zeolite or a medium pore zeolite, and the particle size of the zeolite is 0.1-0.5 μm.
Preferably, the content of calcium oxide in the coal ash powder is more than 10 percent; the fineness of the coal ash powder is 10-30 mu m.
7. The microbial carrier according to claim 1, wherein the fineness of the volcanic powder is 1-5mm.
Preferably, the soil is river soil.
The application also provides a preparation method of the microbial carrier, which comprises the following steps: s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles; s2: grinding the soil particles to obtain soil powder; s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining to obtain the microbial carrier.
Preferably, the calcining temperature in the step S3 is 300-500 ℃, and the calcining time is 2-4h.
The present invention has the following advantageous effects in that,
in contrast to the prior art, the present application provides a microorganism carrier, which comprises zeolite powder, coal ash powder, volcanic powder and soil. The microorganism carrier can provide a carrier for microorganisms for cleaning river channels. Wherein, the zeolite powder has higher specific surface area and provides a repeated loading surface for microorganisms; and can make the microorganism fully contact with the sewage to be treated. The volcanic powder can increase the content of oxygen ions in water, so that the ions in the water are active, and the volcanic powder can slightly release alpha rays and infrared rays, so that the sewage treatment capacity of microorganisms can be accelerated. The soil can provide trace elements required by the growth of microorganisms and promote the growth of the microorganisms.
In conclusion, the microbial carrier provided by the application has a large specific surface area, and can provide sufficient space for microbial loading; and can provide favorable conditions for the growth of microorganisms and improve the sewage treatment capacity of the microorganisms.
Detailed Description
In order to better understand the present invention, the following examples further illustrate the invention, the examples are only used for explaining the invention, not to constitute any limitation of the invention.
The present application provides a microbial carrier comprising: zeolite powder, coal ash powder, volcanic powder and soil. Wherein, the microbial carrier comprises the following components in parts by weight: 15-35% of zeolite powder, 15-35% of fly ash powder, 5-25% of volcanic powder and 45-65% of soil. Preferably, the microbial carrier comprises the following components in parts by weight: 20% of zeolite powder, 20% of fly ash powder, 10% of volcanic powder and 50% of soil.
Wherein the zeolite comprises one or more of L zeolite, X zeolite, Y zeolite, offretite, omega zeolite, mordenite, MAZ, MEI, FAO, EMT, ZSM-3, ZSM-4, ZSM-18, ZSM-20, MFI, MTW, MTT, EUO, MEV, TON, beta zeolite, ZSM-34, ZSM-38, ZSM-48, gallosilicate and titanosilicate. The zeolite is large-pore zeolite or mesoporous zeolite, and the particle size of the zeolite is 0.1-0.5 μm.
It is noted that zeolites are crystalline microporous molecular sieves composed of lattice silica and optionally alumina with exchangeable cations such as alkali or alkaline earth ions. Although the term "zeolite" includes materials of silica and optionally alumina, it is understood that the silica and alumina portions may be replaced in whole or in part by other oxides. For example, germanium oxide, titanium oxide, tin oxide, phosphorus oxide, and mixtures thereof may be substituted for the silicon oxide portion. Boron oxide, iron oxide, gallium oxide, indium oxide, and mixtures thereof may be substituted for the alumina portion. Thus, as used herein, the terms "zeolite" and "zeolitic material" refer not only to materials containing silicon oxide and optionally aluminum oxide in their crystalline lattice structure, but also to materials containing suitable atoms in place of such silicon and aluminum, such as, for example, silicogallates, silicoborates, silicoaluminophosphates (SAPOs), and Aluminophosphates (ALPOs). The term "aluminosilicate zeolite" as used herein refers to a zeolitic material consisting essentially of silicon and aluminum atoms in its crystalline lattice structure.
Wherein the content of calcium oxide in the coal ash powder is more than 10 percent; the fineness of the coal ash powder is 10-30 mu m. The main oxides of the coal ash powder are as follows: siO2, AL2O3, feO, fe2O3, caO, tiO2, mgO, K2O, na2O, SO3, mnO and the like, and P2O5 and the like. Wherein the silicon oxide and titanium oxide are from clay and rock shale; iron oxide is mainly from pyrite; magnesium oxide and calcium oxide are derived from their corresponding carbonates and sulfates.
Wherein the fineness of the volcanic powder is 1-5mm. The volcanic powder can be powder obtained by grinding volcanic rocks. The volcanic powder is vitreous lava with dense air holes formed by rapid overflow and expansion of internal gas due to rapid reduction of pressure after rapid cooling of rock slurry in the volcanic eruption process. The volume of the air holes accounts for more than 50% of the volume of the rock. It is called pumice because of its many pores, light weight and ability to float on the water.
Wherein the soil is river soil. Specifically, the soil may be obtained by drying and pulverizing sludge dug from a river bottom.
The application also provides a preparation method of the microbial carrier, which comprises the following steps:
s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles; s2: grinding the soil particles to obtain soil powder; s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining to obtain the microbial carrier. Wherein the calcining temperature in the step S3 is 300-500 ℃, and the calcining time is 2-4h.
In the using process of the microbial carrier, the microbial carrier can be loaded with microbes and then put into a river channel for use.
The following examples are given by way of illustration:
example 1
A microbial carrier comprising: 15% of zeolite powder, 15% of coal ash powder, 5% of volcanic powder and 65% of soil.
The preparation method of the microbial carrier comprises the following steps:
s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles;
s2: grinding the soil particles to obtain soil powder;
s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining, wherein the calcining temperature is 400 ℃, and the calcining time is 3 hours, so as to obtain the microbial carrier.
Example 2
A microbial carrier comprising: 35% of zeolite powder, 15% of coal ash powder, 5% of volcanic powder and 45% of soil.
The preparation method of the microbial carrier comprises the following steps:
s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles;
s2: grinding the soil particles to obtain soil powder;
s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining, wherein the calcining temperature is 500 ℃, and the calcining time is 4 hours, so as to obtain the microbial carrier.
Example 3
A microbial carrier comprising: 25% of zeolite powder, 25% of coal ash powder, 5% of volcanic powder and 45% of soil.
The preparation method of the microbial carrier comprises the following steps:
s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles;
s2: grinding the soil particles to obtain soil powder;
s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining, wherein the calcining temperature is 300 ℃, and the calcining time is 2 hours, so as to obtain the microbial carrier.
Example 4
A microbial carrier comprising: 20% of zeolite powder, 20% of coal ash powder, 10% of volcanic powder and 50% of soil.
The preparation method of the microbial carrier comprises the following steps:
s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles;
s2: grinding the soil particles to obtain soil powder;
s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining, wherein the calcining temperature is 450 ℃, and the calcining time is 3 hours, so as to obtain the microbial carrier.
Example 5
A microbial carrier comprising: 20% of zeolite powder, 25% of coal ash powder, 10% of volcanic powder and 45% of soil.
The preparation method of the microbial carrier comprises the following steps:
s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles;
s2: grinding the soil particles to obtain soil powder;
s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining, wherein the calcining temperature is 500 ℃, and the calcining time is 3 hours, so as to obtain the microbial carrier.
Claims (10)
1. A microbial carrier, comprising:
zeolite powder, coal ash powder, volcanic powder and soil.
2. The microbial carrier according to claim 1, which comprises the following components in parts by mass:
15-25% of zeolite powder, 15-25% of coal ash powder, 5-15% of volcanic powder and 45-55% of soil.
3. The microbial carrier according to claim 1, which comprises the following components in parts by mass:
20% of zeolite powder, 20% of fly ash powder, 10% of volcanic powder and 50% of soil.
4. The microbial carrier of claim 1, wherein the zeolite comprises zeolite L, zeolite X, zeolite Y, offretite, omega, mordenite, MAZ, MEI, FAO, EMT, ZSM-3, ZSM-4, ZSM-18, ZSM-20, MFI, MTW, MTT, EUO, MEV, TON, beta, ZSM-34, ZSM-38, ZSM-48, gallosilicates and titanosilicates. One or more mixtures thereof.
5. The microorganism carrier according to claim 1, wherein the zeolite is a large pore zeolite or a medium pore zeolite, and the particle size of the zeolite is 0.1 to 0.5 μm.
6. The microbial carrier of claim 1, wherein the content of calcium oxide in the fly ash is greater than 10%; the fineness of the coal ash powder is 10-30 mu m.
7. The microbial carrier according to claim 1, wherein the fineness of the volcanic powder is 1-5mm.
8. The microorganism carrier according to claim 1, wherein the soil is river soil.
9. A method for producing a microorganism carrier, comprising:
s1: digging soil from a river channel, drying, primarily crushing, and sieving to obtain soil particles;
s2: grinding the soil particles to obtain soil powder;
s3: mixing soil powder, coal ash powder, volcanic powder and zeolite powder, adding water, uniformly stirring, granulating, drying and calcining to obtain the microbial carrier.
10. The method for preparing a microorganism carrier according to claim 9, wherein the calcination temperature in step S3 is 300-500 ℃ and the calcination time is 2-4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110481987.3A CN115259343A (en) | 2021-04-30 | 2021-04-30 | Simple microbial carrier and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110481987.3A CN115259343A (en) | 2021-04-30 | 2021-04-30 | Simple microbial carrier and preparation method thereof |
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| CN115259343A true CN115259343A (en) | 2022-11-01 |
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Citations (5)
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|---|---|---|---|---|
| JP2005015276A (en) * | 2003-06-26 | 2005-01-20 | Azumagumi:Kk | Ceramic fired body and antibacterial ceramic and microorganism immobilization support using the same |
| CN108033575A (en) * | 2017-12-29 | 2018-05-15 | 广州市环境保护工程设计院有限公司 | A kind of black and odorous water remedying sludge method |
| US20190247824A1 (en) * | 2016-11-30 | 2019-08-15 | Qingdao Yi Eco-Environmental Protection Technology Co., Ltd | Ceramsite Produced by Using River/Lake/Sea Sludge and Seashell Powder as Raw Materials and Preparation Method Thereof |
| CN111592200A (en) * | 2020-06-30 | 2020-08-28 | 广西碧福环保工程有限公司 | Novel tap water treatment process for ecological, biological and physical purification and disinfection |
| CN112694218A (en) * | 2020-12-23 | 2021-04-23 | 河北和悦环保科技有限公司 | Biological carrier for strengthening wastewater treatment and preparation method and application thereof |
-
2021
- 2021-04-30 CN CN202110481987.3A patent/CN115259343A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005015276A (en) * | 2003-06-26 | 2005-01-20 | Azumagumi:Kk | Ceramic fired body and antibacterial ceramic and microorganism immobilization support using the same |
| US20190247824A1 (en) * | 2016-11-30 | 2019-08-15 | Qingdao Yi Eco-Environmental Protection Technology Co., Ltd | Ceramsite Produced by Using River/Lake/Sea Sludge and Seashell Powder as Raw Materials and Preparation Method Thereof |
| CN108033575A (en) * | 2017-12-29 | 2018-05-15 | 广州市环境保护工程设计院有限公司 | A kind of black and odorous water remedying sludge method |
| CN111592200A (en) * | 2020-06-30 | 2020-08-28 | 广西碧福环保工程有限公司 | Novel tap water treatment process for ecological, biological and physical purification and disinfection |
| CN112694218A (en) * | 2020-12-23 | 2021-04-23 | 河北和悦环保科技有限公司 | Biological carrier for strengthening wastewater treatment and preparation method and application thereof |
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