CN115432829A - Biological filler, preparation method and application thereof in sewage treatment - Google Patents
Biological filler, preparation method and application thereof in sewage treatment Download PDFInfo
- Publication number
- CN115432829A CN115432829A CN202211054332.9A CN202211054332A CN115432829A CN 115432829 A CN115432829 A CN 115432829A CN 202211054332 A CN202211054332 A CN 202211054332A CN 115432829 A CN115432829 A CN 115432829A
- Authority
- CN
- China
- Prior art keywords
- filler
- biological
- sewage
- sodium alginate
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
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)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention provides a biological filler, a preparation method and application thereof in sewage treatment, wherein the method comprises the steps of drying and screening a multi-biological-phase zoogloea, mixing the multi-biological-phase zoogloea with a sodium alginate solution and potassium hydroxide according to a preset proportion, and putting the mixed solution into a granulator for granulation to obtain a third filler with a preset shape; putting the third filler into a sodium alginate solution, soaking for a first preset time, taking out, and carrying out draining treatment to obtain a fourth filler; and putting the fourth filler into a calcium chloride solution, soaking for a second preset time, and then fishing out the fourth filler, and carrying out air drying treatment under natural conditions to obtain the target filler.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a biological filler, a preparation method and application thereof in sewage treatment.
Background
Due to the increase of the population of the world and the deepening of the industrialization degree, the problem of environmental pollution caused by daily life and production activities of human beings is more serious. Due to the limitation of rural economic conditions and the lack of environmental protection awareness of residents, a plurality of villages lack perfect sewage collection systems, and the phenomenon of direct drainage is common. Artificially-induced large nitrogen and phosphorus emissions have caused serious environmental problems, such as the best known problems of eutrophication and bloom, resulting in a decrease in the quality of fresh water and a decrease in the level of diversity of aquatic organisms.
Biological filter beds have been paid attention by researchers since the development and application, and become a technology which is mature day by day and is used for treating the fields of domestic sewage, municipal sewage, industrial wastewater and the like through continuous research from low-load biological filter beds to high-load biological filter beds. When the wastewater passes through the high-load biological filter bed, suspended substances in the wastewater are intercepted by the filler, so that microorganisms are quickly bred, and the microorganisms further adsorb soluble and colloidal organic matters in the wastewater, gradually grow and form a biological membrane. The biological filter bed is used for purifying the waste water by means of the adsorption and oxidation of the biological membrane on the surface of the filter material on the organic matters in the waste water.
In the biological filter bed, the treatment load and treatment effect are determined by the characteristics of the types of microorganisms, the biomass size, the microbial activity and the like, and the biological filler is a core part and plays a key role. The filler is a place where the biological membrane inhabits, is a carrier of the biological membrane, influences the growth, propagation, falling off, shape and spatial structure of microorganisms, has the function of intercepting suspended substances, and is a main factor influencing the investment and running cost of sewage treatment engineering.
The existing fillers are generally divided into three types, namely inorganic fillers, organic polymer fillers and composite fillers according to properties, but the traditional fillers have poor pollutant degradation capability, unstable biological phases and single microbial species, and have low efficiency in treating high-concentration organic wastewater, such as high-concentration COD, ammonia nitrogen and other pollutants in livestock and poultry breeding wastewater. Therefore, there is a need to develop a biological filler suitable for high concentration organic wastewater treatment and a culture method thereof to meet the increasingly strict discharge requirements.
Disclosure of Invention
Based on the above, the embodiment of the invention provides a biological filler, a preparation method and an application of the biological filler in sewage treatment, and aims to solve the problem that the traditional filler is low in treatment efficiency when used for treating high-concentration organic wastewater in the prior art.
The first aspect of the embodiment of the invention provides a preparation method of a biological filler, which comprises the following steps:
drying and screening the multi-biological-phase zoogloea to obtain a first filler;
mixing the first filler, the sodium alginate solution and potassium hydroxide according to a preset ratio to obtain a second filler;
putting the second filler into a granulator for granulation to obtain a third filler with a preset shape;
putting the third filler into the sodium alginate solution, soaking for a first preset time, taking out, and performing draining treatment to obtain a fourth filler;
and putting the fourth filler into a calcium chloride solution, soaking for a second preset time, taking out, and performing air drying treatment under natural conditions to obtain the target filler.
Preferably, the multi-biological zoogloea is either mineralized refuse of a refuse landfill or activated sludge of a sewage treatment plant.
Preferably, the landfill age of the mineralized refuse is more than 5 years.
Preferably, in the step of drying and screening the multi-biological-phase zoogloea to obtain the first filler, the drying temperature is 40-55 ℃, and the screening mesh number is 50-100 meshes.
Preferably, the concentration of the sodium alginate solution is 0.5-5%, the concentration of the calcium chloride solution is 2-10%, and the concentration of the potassium hydroxide solution is 0.5-5%.
Preferably, in the step of mixing the first filler, the sodium alginate solution and the calcium chloride solution according to a preset ratio to obtain the second filler, the first filler, the sodium alginate solution and the calcium chloride solution are mixed according to a mass fraction ratio of 5-7.
Preferably, the particle size of the third filler is controlled to be 5mm to 50mm.
Preferably, the first preset time and the second preset time are both 30 s-180 s.
According to a second aspect of the embodiments of the present invention, there is provided a biological filler, which is prepared by the preparation method of the biological filler.
The third aspect of the embodiment of the invention provides an application of a biological filler in sewage treatment, wherein the biological filler is prepared by the preparation method of the biological filler and is filled into a filter bed, and the implementation temperature of the biological filler is 15-45 ℃, and the implementation pH value of the biological filler is 6.5-8.5.
Compared with the prior art, the implementation of the invention has the following beneficial effects:
drying and screening a multi-biological-phase zooglea to obtain a first filler; mixing the first filler, the sodium alginate solution and potassium hydroxide according to a preset ratio to obtain a second filler; putting the second filler into a granulator for granulation to obtain a third filler with a preset shape; putting the third filler into a sodium alginate solution, soaking for a first preset time, taking out, and carrying out draining treatment to obtain a fourth filler; putting the fourth filler into a calcium chloride solution, soaking for a second preset time, fishing out, performing air drying treatment under natural conditions to obtain a target filler, specifically, taking the multi-biological-phase zooglea as a raw material, so as to ensure that the types of microorganisms, the biomass and the activity of the microorganisms in the target filler are multiple, mixing the multi-biological-phase zooglea with a sodium alginate solution and a potassium hydroxide solution, putting the mixture into a granulator, granulating to obtain a third filler with a fixed shape, soaking the third filler into a sodium alginate solution to obtain a stable and rough-surface fourth filler, soaking the fourth filler into a calcium chloride solution to further stabilize the shape of the filler and make the surface of the filler rough, wherein the rough surface makes the adhesion force larger, so that the microorganisms can be effectively gathered in the target filler, and a soil type microbial community with multiple microorganisms (nitrifying bacteria, denitrifying bacteria and anaerobic bacteria) is formed, a soil type microbial community suitable for a multi-biological-phase biological-environment is created, and the high-efficiency organic ammonia oxidation wastewater with multiple biological-phase biological-bacteria is removed.
Drawings
FIG. 1 is a diagram of a specific 90-day removal of sewage provided by the first embodiment of the present invention;
FIG. 2 is a diagram illustrating a specific removal of 130-day wastewater according to a second embodiment of the present invention;
FIG. 3 is a diagram of a specific removal of wastewater for 100 days provided by a third embodiment of the present invention;
FIG. 4 is a diagram showing the detailed removal of 120-day sewage provided by the fourth embodiment of the present invention;
FIG. 5 is a diagram showing the detailed removal of 120-day sewage provided by the fifth embodiment of the present invention;
FIG. 6 is a diagram showing the specific removal of 100 days of wastewater according to the sixth embodiment of the present invention;
FIG. 7 is a diagram of the specific removal of 120-day sewage provided by the seventh embodiment of the present invention;
FIG. 8 is a diagram illustrating a detailed removal of 120-day wastewater according to an eighth embodiment of the present invention;
FIG. 9 is a diagram showing the specific removal of 90-day-old wastewater according to the first comparative example of the present invention.
The following detailed description will be further described in conjunction with the above-identified drawing figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
On one hand, the invention provides a preparation method of a biological filler aiming at the problem of low treatment efficiency of the traditional filler when treating high-concentration organic wastewater, wherein the preparation method comprises the following steps:
drying and screening the multi-biological-phase zoogloea to obtain a first filler;
mixing the first filler, a sodium alginate solution and a potassium hydroxide solution according to a preset proportion to obtain a second filler;
putting the second filler into a granulator for granulation to obtain a third filler with a preset shape;
putting the third filler into a sodium alginate solution, soaking for a first preset time, taking out, and carrying out draining treatment to obtain a fourth filler;
and putting the fourth filler into the calcium chloride solution, soaking for a second preset time, taking out, and performing air drying treatment under natural conditions to obtain the target filler.
In some embodiments of the present invention, the multi-bio zooglea is any one of mineralized waste of a landfill or activated sludge of a sewage treatment plant.
In some embodiments of the invention, the mineralized refuse is aged more than 5 years old in landfill.
In some embodiments of the present invention, in the step of drying and screening the multi-bio zoogloea to obtain the first filler, the drying temperature is 40 ℃ to 55 ℃, and the screening mesh number is 50 meshes to 100 meshes.
In some embodiments of the invention, the concentration of the sodium alginate solution is 0.5% to 5%, the concentration of the calcium chloride solution is 2% to 10%, and the concentration of the potassium hydroxide solution is 0.5% to 5%.
In some embodiments of the present invention, in the step of mixing the first filler, the sodium alginate solution, and the calcium chloride solution in a predetermined ratio to obtain the second filler, the mass fraction ratio of the first filler, the sodium alginate solution, and the calcium chloride solution is 5-7: 2-3, and 1-2.
In some embodiments of the invention, the particle size of the third filler is controlled to be 5mm to 50mm.
In some embodiments of the present invention, the first predetermined time and the second predetermined time are both 30s to 180s.
Specifically, the actual process for preparing the biological filler may be that mineralized waste in a refuse landfill or activated sludge in a sewage treatment plant is dried at a temperature of 40 ℃ to 55 ℃, screened by 50 meshes to 100 meshes to obtain a first filler, and at the same time, a sodium alginate solution with a concentration of 0.5% to 5%, a calcium chloride solution with a concentration of 2% to 10% and a potassium hydroxide solution with a concentration of 0.5% to 5% are prepared, and then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to a mass fraction ratio of 5 to 7: soaking the third filler in a sodium alginate solution for 30-180 s, fishing out and draining for 10-60 s to obtain a fourth filler, wherein the fourth filler has certain stability, the sodium alginate solution can react with a film layer formed on the surface of the third filler to improve the surface roughness of the obtained fourth filler, finally, soaking the fourth filler in a calcium chloride solution for 30-180 s, fishing out and drying in the air under natural conditions to obtain a target filler, and the stability and the surface roughness of the target filler are further improved on the basis of the fourth filler, wherein the rough surface increases the adhesive force, so that microorganisms can be effectively gathered in the target filler, namely a soil type microbial community with strong degradation capability and multiple microorganisms (nitrobacteria, denitrifying bacteria and anaerobic ammonium oxidation bacteria) is formed, and a microbial environment suitable for the existence of multiple strains is created, under the action of multiple biological phase strains, the aim of efficiently removing organic pollutants in high-concentration organic wastewater is fulfilled.
The invention also provides a biological filler prepared by the preparation method of the biological filler.
The invention also provides the application of the biological filler in sewage treatment, the biological filler is prepared by the preparation method of the biological filler, and the biological filler is filled into a filter bed, wherein the implementation temperature of the biological filler is 15-45 ℃, and the implementation pH value is 6.5-8.5, and the sewage treated by the biological filler is understood to belong to weak alkaline environment, wherein the implementation temperature of the biological filler is 15-45 ℃, and the implementation pH value is 6.5-8.5.
In order to facilitate an understanding of the invention, several embodiments of the invention are set forth below. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example one
In the embodiment, mineralized refuse with the embedding age of 8 years in a refuse landfill is dried at the temperature of 40-55 ℃, and is screened by 100 meshes to obtain a first filler, meanwhile, a 5% sodium alginate solution, a 5% calcium chloride solution and a 1% potassium hydroxide solution are prepared, and then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to the mass fraction ratio of 5.
In addition, the target packing is filled into the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the embodiment is 226mg/L, NH 3 N is 31mg/L, total phosphorus is 5.3mg/L, the pH value of the sewage is adjusted to 7.3 after coagulating sedimentation, the sewage is introduced into a filter bed, the operation is carried out for 6 periods every day, water is distributed for 40min every period, the effluent is collected every day, COD, ammonia nitrogen and total phosphorus in the sewage are measured, the specific removal condition of the sewage in 90 days is shown in figure 1, specifically, COD is 30mg/L, and NH is contained in the sewage in 90 days 3 N is 2.02mg/L, and total phosphorus is 0.2mg/L.
Example two
In the embodiment, mineralized refuse with the landfill age of 9 years is dried at the temperature of 40-55 ℃, a first filler is obtained by 80-mesh sieving, meanwhile, a sodium alginate solution with the concentration of 1%, a calcium chloride solution with the concentration of 2% and a potassium hydroxide solution with the concentration of 3% are prepared, then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to the mass fraction ratio of 5.
In addition, the target packing is filled into the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the embodiment is 134.9mg/L, NH 3 the-N is 29.9mg/L, the total phosphorus is 1.9mg/L, the pH value of the sewage is adjusted to 8 after coagulating sedimentation, the sewage is introduced into a filter bed, the operation is carried out for 6 periods every day, water is distributed for 40min every period, the effluent is collected every day, the COD, ammonia nitrogen and total phosphorus in the sewage are measured, the specific removal condition of the sewage in 130 days is shown in figure 2, specifically, in the sewage in 90 days, the COD is 45.2mg/L, and NH is carried out 3 N is 4.58mg/L, and total phosphorus is 0.4mg/L.
EXAMPLE III
In the embodiment, mineralized refuse with the embedding age of 8 years in a refuse landfill is dried at the temperature of 40-55 ℃, a first filler is obtained by 80-mesh sieving, meanwhile, a sodium alginate solution with the concentration of 3%, a calcium chloride solution with the concentration of 3% and a potassium hydroxide solution with the concentration of 0.5% are prepared, then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to the mass fraction ratio of 7 to 2, a second filler is obtained, the second filler is put into a granulator for granulation, a third filler with the granularity of 5-50 mm is obtained, further, the third filler is soaked in the sodium alginate solution for 100s, fished out and drained for 30s, a fourth filler is obtained, and finally, the fourth filler is soaked in the calcium chloride solution for 100s, fished out and dried in air under natural conditions, and the target filler can be obtained.
In addition, the target packing is filled into the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the embodiment is 87mg/L and NH 3 Adjusting the pH value of the sewage to 8.1 after coagulating sedimentation, introducing the sewage into a filter bed, operating for 6 periods every day, distributing water for 40min every period, collecting the effluent every day, and measuring COD, ammonia nitrogen and total phosphorus in the effluent, wherein the specific removal condition of the sewage in 100 days is shown in figure 3, and specifically, COD is 3 in the sewage in 90 days5mg/L，NH 3 the-N content was 7.73mg/L and the total phosphorus content was 0.55mg/L.
Example four
In the embodiment, mineralized refuse with the embedding age of 8 years in a refuse landfill is dried at the temperature of 40-55 ℃, screened by 100 meshes to obtain a first filler, and meanwhile, a 5% sodium alginate solution, a 8% calcium chloride solution and a 1% potassium hydroxide solution are prepared, and then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to the mass fraction ratio of 7.
In addition, the target packing is filled into the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the embodiment is 107mg/L and NH 3 N is 85mg/L, total phosphorus is 1.9mg/L, the pH value of the sewage is adjusted to 7.5 after coagulating sedimentation, the sewage is introduced into a filter bed, the operation is carried out for 6 periods every day, water is distributed for 40min every period, the effluent is collected every day, COD, ammonia nitrogen and total phosphorus in the sewage are measured, the specific removal condition of the sewage in 120 days is shown in figure 4, specifically, COD is 25.4mg/L, NH is contained in the sewage in 90 days 3 N is 5.7mg/L, and total phosphorus is 0.2mg/L.
EXAMPLE five
In the embodiment, mineralized refuse with the embedding age of 8 years in a refuse landfill is dried at the temperature of 40-55 ℃, a first filler is obtained by 80-mesh sieving, meanwhile, a 5% sodium alginate solution, a 10% calcium chloride solution and a 5% potassium hydroxide solution are prepared, and then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to the mass fraction ratio of 6.
In addition, the target packing is filled into the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the embodiment is 139mg/L and NH 3 the-N is 62.2mg/L, the total phosphorus is 3.94mg/L, the pH value of the sewage is adjusted to 7.7 after coagulating sedimentation, the sewage is introduced into a filter bed, the operation is carried out for 6 periods every day, water is distributed for 40min every period, the effluent is collected every day, the COD, ammonia nitrogen and total phosphorus in the sewage are measured, the specific removal condition of the sewage in 120 days is shown in figure 5, specifically, in the sewage in 90 days, the COD is 30.1mg/L, NH is added 3 N is 10.1mg/L, and total phosphorus is 0.3mg/L.
EXAMPLE six
In the embodiment, mineralized waste with the embedding age of 7 years in a refuse landfill is dried at the temperature of 40-55 ℃, and is screened by 50 meshes to obtain a first filler, meanwhile, a sodium alginate solution with the concentration of 1%, a calcium chloride solution with the concentration of 5% and a potassium hydroxide solution with the concentration of 3% are prepared, and then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to the mass fraction ratio of 6.
In addition, the target filler is filled into the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein, in the embodiment, the COD in the sewage to be treated is 129.6mg/L, NH 3 The concentration of N is 79mg/L, the total phosphorus is 6.5mg/L, the pH value of the sewage is adjusted to 7.7 after coagulating sedimentation, the sewage is introduced into a filter bed, the operation is carried out for 6 periods every day, water is distributed for 40min every period, and the operation is carried out for every dayCollecting effluent, measuring COD, ammonia nitrogen and total phosphorus in the effluent, and specifically removing the sewage in 100 days as shown in figure 6. Specifically, in the sewage in 90 days, COD is 35.1mg/L, and NH is added 3 The concentration of N is 6.1mg/L and the total phosphorus is 0.05mg/L.
EXAMPLE seven
In this embodiment, mineralized waste with an embedding age of 7 years in a refuse landfill is dried at a temperature of 40 ℃ to 55 ℃, a 75-mesh sieve is used for obtaining a first filler, and meanwhile, a sodium alginate solution with a concentration of 2%, a calcium chloride solution with a concentration of 6% and a potassium hydroxide solution with a concentration of 0.5% are prepared, and then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to a mass fraction ratio of 7.
In addition, the target packing is filled in the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the embodiment is 89.2mg/L, NH 3 the-N is 69mg/L, the total phosphorus is 1.4mg/L, the pH value of the sewage is adjusted to 7.7 after coagulating sedimentation, the sewage is introduced into a filter bed, the operation is carried out for 6 periods every day, water is distributed for 40min every period, the effluent is collected every day, the COD, ammonia nitrogen and total phosphorus in the sewage are measured, the specific removal condition of the sewage in 120 days is shown in figure 7, specifically, in the sewage in 90 days, the COD is 21.3mg/L, and NH is contained 3 N is 5.2mg/L, and total phosphorus is 0.02mg/L.
Example eight
In this embodiment, mineralized waste with an embedding age of 7 years in a refuse landfill is dried at a temperature of 40 ℃ to 55 ℃, a first filler is obtained by 80-mesh sieving, meanwhile, a 5% sodium alginate solution, a 8% calcium chloride solution and a 0.5% potassium hydroxide solution are prepared, and then the first filler, the sodium alginate solution and the potassium hydroxide solution are mixed according to a mass fraction ratio of 5.
In addition, the target packing is filled in the filter bed to treat the organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the embodiment is 97mg/L and NH 3 Adjusting the pH value of the sewage to 7.7 after coagulating sedimentation, introducing the sewage into a filter bed, operating for 6 periods every day, distributing water for 40min every period, collecting the effluent every day, measuring COD, ammonia nitrogen and total phosphorus in the effluent after 120 days, and specifically, in the sewage on the 90 th day, COD is 30.2mg/L and NH is measured 3 7.3mg/L of-N and 0.67mg/L of total phosphorus.
Comparative example 1
The difference between the first comparative example and the first example of the invention is that the raw materials of the filler are mixed by manganese sand, volcanic rock and montmorillonite according to the mass ratio of 1:1:1, and filling the finally obtained target filler into a filter bed to treat organic pollutants in the sewage when the sewage passes through the filter bed, wherein the COD in the sewage to be treated in the comparative example is 176mg/L, and the NH content in the sewage is 3 the-N is 53mg/L, the total phosphorus is 3.8mg/L, the pH value of the sewage is adjusted to 7.2 after coagulation and precipitation, the sewage is introduced into a filter bed, the operation is carried out for 6 periods every day, water is distributed for 40min every period, the effluent is collected every day, the COD, ammonia nitrogen and total phosphorus in the sewage are measured, the specific removal condition of the sewage in 90 days is shown in figure 9, specifically, the COD is 100mg/L and NH is contained in the sewage in 90 days 3 N is 40.1mg/L, and total phosphorus is 2mg/L.
Please refer to table 1 below, which shows the parameters corresponding to the first to eighth embodiments of the present invention.
Table 1:
in practical applications, the preparation methods and parameters corresponding to the first to eighth embodiments and the first comparative example of the present invention are respectively adopted to prepare corresponding target fillers, the target fillers are filled into the filter bed, the sewage passes through the filter bed, and the pollutant concentration in the sewage is detected at regular time, wherein the detected pollutants comprise COD and NH 3 N and total phosphorus, the test data are shown in table 2 below.
Table 2:
as is apparent from the data in tables 1 and 2, the target fillers prepared in the first to eighth embodiments of the present invention significantly improve the decontamination efficiency of high-concentration organic wastewater, wherein the target filler prepared in the first embodiment of the present invention is superior to that prepared in other embodiments, specifically, the decontamination efficiency of COD in wastewater is 86.5%, and NH is 86.5% 3 The decontamination efficiency for-N was 93.48%, and for total phosphorus 96.16%.
In summary, the invention relates to a biological filler, a preparation method and an application thereof in sewage treatment, wherein the method comprises the steps of drying and screening a multi-biological zoogloea to obtain a first filler; mixing the first filler, the sodium alginate solution and potassium hydroxide according to a preset ratio to obtain a second filler; putting the second filler into a granulator for granulation to obtain a third filler with a preset shape; putting the third filler into a sodium alginate solution, soaking for a first preset time, taking out, and carrying out draining treatment to obtain a fourth filler; the fourth filler is placed into a calcium chloride solution to be soaked for a second preset time, and then is fished out to be subjected to air drying treatment under natural conditions to obtain a target filler, specifically, the multi-biological-phase zoogloea is used as a raw material, so that the variety, the biomass and the microbial activity of microorganisms in the target filler can be ensured to be multiple, the multi-biological-phase zoogloea is mixed with a sodium alginate solution and a potassium hydroxide solution, and the mixture is put into a granulator to be granulated to obtain a third filler with a fixed shape.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A preparation method of biological filler is characterized by comprising the following steps:
drying and screening the multi-biological-phase zoogloea to obtain a first filler;
mixing the first filler, the sodium alginate solution and the potassium hydroxide solution according to a preset proportion to obtain a second filler;
putting the second filler into a granulator for granulation to obtain a third filler with a preset shape;
putting the third filler into the sodium alginate solution, soaking for a first preset time, taking out, and performing draining treatment to obtain a fourth filler;
and putting the fourth filler into a calcium chloride solution, soaking for a second preset time, taking out, and performing air drying treatment under natural conditions to obtain the target filler.
2. The method of claim 1, wherein the multi-bio zoogloea is either mineralized waste from a landfill or activated sludge from a sewage treatment plant.
3. The method of claim 2, wherein the mineralized refuse is aged more than 5 years old in landfill.
4. The method for preparing the biological filler according to claim 1, wherein in the step of drying and screening the multi-biological-phase zoogloea to obtain the first filler, the drying temperature is 40-55 ℃, and the screening mesh number is 50-100.
5. The method for preparing the biological filler as claimed in claim 1, wherein the concentration of the sodium alginate solution is 0.5-5%, the concentration of the calcium chloride solution is 2-10%, and the concentration of the potassium hydroxide solution is 0.5-5%.
6. The preparation method of the biological filler according to claim 1, wherein in the step of mixing the first filler, the sodium alginate solution and the calcium chloride solution according to a preset ratio to obtain the second filler, the first filler, the sodium alginate solution and the calcium chloride solution are mixed according to a mass fraction ratio of 5-7.
7. The method for preparing the biological filler according to claim 1, wherein the particle size of the third filler is controlled to be 5mm to 50mm.
8. The method for preparing biological filler according to claim 1, wherein the first preset time and the second preset time are both 30 s-180 s.
9. A biological filler, characterized in that it is obtained by a method for preparing a biological filler according to any one of claims 1 to 8.
10. Use of a biological filler in sewage treatment, characterized in that the biological filler is prepared by the method of any one of claims 1 to 8 and is filled into a filter bed, wherein the biological filler is applied at a temperature of 15 ℃ to 45 ℃ and a pH of 6.5 to 8.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211054332.9A CN115432829A (en) | 2022-08-31 | 2022-08-31 | Biological filler, preparation method and application thereof in sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211054332.9A CN115432829A (en) | 2022-08-31 | 2022-08-31 | Biological filler, preparation method and application thereof in sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115432829A true CN115432829A (en) | 2022-12-06 |
Family
ID=84245006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211054332.9A Pending CN115432829A (en) | 2022-08-31 | 2022-08-31 | Biological filler, preparation method and application thereof in sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115432829A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540650A (en) * | 2016-10-20 | 2017-03-29 | 北京师范大学 | A kind of preparation method of waterworks sludge base dephosphorization granule adsorbent |
| WO2018082236A1 (en) * | 2016-11-07 | 2018-05-11 | 江西盖亚环保科技有限公司 | Cultivation method for multiple-biophase microbial zoogloea used for waste water treatment |
| CN110482715A (en) * | 2019-09-04 | 2019-11-22 | 黄河三角洲京博化工研究院有限公司 | A method of synchronous nitration denitrification denitrogenation is realized using immobilized microorganism technique |
| CN114940986A (en) * | 2022-05-31 | 2022-08-26 | 戴威 | Microbial agent for treating high-salt industrial wastewater and preparation method thereof |
-
2022
- 2022-08-31 CN CN202211054332.9A patent/CN115432829A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540650A (en) * | 2016-10-20 | 2017-03-29 | 北京师范大学 | A kind of preparation method of waterworks sludge base dephosphorization granule adsorbent |
| WO2018082236A1 (en) * | 2016-11-07 | 2018-05-11 | 江西盖亚环保科技有限公司 | Cultivation method for multiple-biophase microbial zoogloea used for waste water treatment |
| CN110482715A (en) * | 2019-09-04 | 2019-11-22 | 黄河三角洲京博化工研究院有限公司 | A method of synchronous nitration denitrification denitrogenation is realized using immobilized microorganism technique |
| CN114940986A (en) * | 2022-05-31 | 2022-08-26 | 戴威 | Microbial agent for treating high-salt industrial wastewater and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cheng et al. | Effects of plants development and pollutant loading on performance of vertical subsurface flow constructed wetlands | |
| CN111423053A (en) | In-situ treatment method of river black and odorous water body based on modified plant tannin | |
| CN110697907A (en) | Immobilized composite flora material and preparation method thereof | |
| CN104556391A (en) | Artificial wetland purification method for wastewater | |
| CN110683657A (en) | Culture sewage treatment method based on microbial degradation | |
| CN110683659B (en) | In-situ treatment method for farmland drainage | |
| CN109293138A (en) | A kind of aquaculture wastewater purifying treatment method | |
| CN108529747A (en) | Nitration denitrification simultaneous denitrification method | |
| CN108996829A (en) | A kind of method of high-efficient purification livestock and poultry farm sewage | |
| CN113264633A (en) | Ecological restoration method for black and odorous river channel | |
| CN1785849A (en) | Bio settling bed method of purifying water quality | |
| CN109879528B (en) | Self-driven landscape ecological treatment method and system for rural domestic sewage | |
| CN112851082A (en) | Riverbed bottom mud ecological restoration bed and preparation method thereof | |
| CN110357248B (en) | Water treatment filler and preparation method thereof | |
| CN109264866B (en) | Preparation method and application of hygrophyte plant fiber filler for strengthening denitrification of constructed wetland | |
| CN115432829A (en) | Biological filler, preparation method and application thereof in sewage treatment | |
| CN113480099B (en) | In-situ circulation treatment process for landscape lake water | |
| CN112851037B (en) | Lawn capable of intercepting and purifying particles in water in multiple stages | |
| CN110156243A (en) | A kind of country sewage biology-ecological assemblage processing system | |
| CN210945239U (en) | Ecological drought island suitable for intermittent type nature cutoff river course | |
| CN113087282A (en) | Sewage treatment device containing immobilized microorganism filler | |
| CN207468397U (en) | Ecological filter bed purifying processing device | |
| CN110921999A (en) | High-energy-saving sewage multi-layer percolation purification treatment method | |
| CN110723810A (en) | Biological filler and preparation method thereof | |
| CN111333174A (en) | Flat felt FCP biofilm carrier of fixed bed found fine hair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |