CN111170453B - Novel biological filler anaerobic reactor - Google Patents
Novel biological filler anaerobic reactor Download PDFInfo
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- CN111170453B CN111170453B CN202010132700.1A CN202010132700A CN111170453B CN 111170453 B CN111170453 B CN 111170453B CN 202010132700 A CN202010132700 A CN 202010132700A CN 111170453 B CN111170453 B CN 111170453B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
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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
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Abstract
The invention relates to the field of wastewater treatment, in particular to a novel biological filler anaerobic reactor; the concrete components include: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the novel biological filler anaerobic reactor disclosed by the invention has the advantages of the traditional UASB and IC reactors, and simultaneously increases the biomass in the bioreactor by adding the novel glass pumice biological filler which has the advantages of fast film formation, stable chemical property, large specific surface, suitability for microbial growth and the like, and has the advantages of short starting time, more stable system operation, strong impact load resistance and less sludge.
Description
Technical Field
The invention relates to the field of wastewater treatment, in particular to a biological filler anaerobic reactor.
Background
Environmental pollution and energy shortage are global problems facing human beings in common. Over-development and resource abuse lead to serious resource and environmental crisis. In particular, the water pollution problem not only threatens the health of human beings, but also seriously restricts the sustainable development of the economy and the society.
201711157124.0 relates to a sewage processor, the main body of which is a filter box, a filter screen plate is arranged in the filter box near the water inlet, and one side of the filter box is provided with an overflow port and is connected with an overflow pipe. The electronic jar of filter tank top setting, in the vertical filter tank that stretches into of piston rod of electronic jar to fixed connection filter plate, filter plate is vertical slip along being in the filter tank along with the piston rod motion, and filter plate edge and rose box inner wall sliding contact. A slag discharge port with the horizontal height lower than the overflow port is arranged on one side surface in the filter box opposite to the overflow port, a valve plate mechanism for sealing the slag discharge port in a sliding manner is arranged on the inner wall of the filter box, and the valve plate mechanism comprises a valve plate, a valve plate seat and a return spring. Under the initial condition, the slag discharging port is sealed by the valve plate, when the filter screen plate moves downwards along with the piston rod to the water storage of the filter box, the filter screen plate pushes the valve plate to open the slag discharging port, the filter screen plate realizes automatic back flushing slag removal, and the process is simple, convenient, time-saving and labor-saving.
201610721613.3 relates to a sewage treatment production process. The method comprises the following steps: the high liquid level of the water inlet pump room is kept, the production equipment runs intermittently, the sludge concentration is controlled, oxygen is dissolved, sludge is discharged, and sand is removed. Can control the salt content and the chloride ion content, can normally produce during the running period, the sudden drop of water and the sudden rise of water, and has lower power consumption and less mud production.
201810444954.X A sewage treatment system, comprising: the system comprises a pretreatment unit, a supply unit and at least one sewage treatment unit; the pretreatment unit and the supply unit are respectively connected with the sewage treatment unit, the pretreatment unit is used for collecting sewage, carrying out pretreatment on the sewage and then conveying the sewage to the sewage treatment unit, and the supply unit is used for supplying wind and disinfectant to the sewage treatment unit; the sewage treatment unit comprises a primary sedimentation tank, an anoxic tank, a contact oxidation tank group, a secondary sedimentation tank, a sludge tank and a disinfection tank. The sewage treatment system provided by the invention can realize the treatment of sewage in a mode of combining a physical method, a chemical method and a biological method, thereby ensuring that the effluent index of sewage reaches the sewage discharge standard.
Common methods for modifying fillers are: surface modification and blending modification. The surface modification is mainly to graft some useful functional groups on the surface of the filler by a chemical or physical method to improve the film hanging performance of the filler, and the modification direction is mainly surface hydrophilization and surface charged modification; the existing modification method has the following defects: the surface of the plastic filler is hydrophobic, the biofilm formation period is long, and the growth state and the attachment of microorganisms on the surface of the plastic filler, the growth structure of biological flora and the treatment effect of the microbial biofilm on wastewater are not good.
Improved filters having modified surface charge characteristics that utilize electrokinetic interactions between the filter surface and particles contained in aqueous liquids to trap and adsorb the particles. Such charge modified filters are typically comprised of microporous membranes or involve the use of materials such as blends of glass fibers and cellulose fibers or blends of cellulose fibers and siliceous particles. The charge modification is usually achieved by coating the film or at least part of the fibres with a charge modifying agent and a separate cross-linking agent which ensures the durability of the coating. Many of these synthetic polymers are hydrophobic, and this characteristic makes it difficult to coat fibers made from such polymers with charge modifying materials securely. Therefore, the charge modified filter material based on the hydrophobic polymer fiber has the defects of short service life, weakened technical effect and the like.
The above patents and the prior art have the defects of long starting time, weak impact load resistance and large sludge amount in sewage treatment, restrict the sewage treatment efficiency and prolong the treatment period.
Disclosure of Invention
In order to solve the problems, the invention provides a biological filler anaerobic reactor.
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The glass pumice biological filler is modified by being immersed in hydrophilic organic silicon modification liquid;
foaming the glass pumice biological filler to obtain a microporous structure;
the preparation method of the glass pumice biological filler comprises the following steps:
according to the mass portion, 60-80 portions of glass powder, 20-30 portions of zeolite powder, 0.5-5 portions of aluminum powder, 5-15 portions of calcium carbonate, 1-5 portions of red soil, 1-5 portions of diatomite, 0.1-1 portion of sodium tetraborate, 0.2-2 portions of sodium dihydrogen phosphate and the components are uniformly mixed and then added into a grinding machine to be ground to 200-400 meshes, then the mixture is put into a vacuum drying box and dried for 30-60min at the temperature of 120-150 ℃, then placing the obtained powder into a resistance furnace, raising the temperature to 1000-1200 ℃ by program, foaming for 10-40min, naturally cooling, crushing the obtained pumice filler, then immersing the glass pumice biological filler in hydrophilic organic silicon modified liquid, controlling the temperature to be 60-75 ℃ for processing for 5-10h, taking out the glass pumice biological filler, naturally airing the glass pumice biological filler, and then inoculating microorganisms to obtain the glass pumice biological filler.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and 1,1 '-bis (dimethylsilyl) ferrocene as raw materials, and the maleic aldehyde and the 1, 1' -bis (dimethylsilyl) ferrocene are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and methyldiethoxysilane as raw materials, and the maleic aldehyde and the methyldiethoxysilane are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
according to the mass portion, 42.3-58.7 portions of maleic aldehyde, 0.5-2 portions of 1, 1' -bis (dimethylsilyl) ferrocene, 0.05-0.5 portion of sodium acetate, 3.2-8.6 portions of methyl diethoxy silane, 0.1-0.7 portion of dichloro titanocene and 0.02-0.1 portion of lithium aluminum hydride are put into a reaction kettle, then stirring and mixing evenly, heating to 60-70 ℃, simultaneously dissolving 20-30 parts of methyldiethoxysilane and 0.1-0.5 part of dichlorotitanocene catalyst into 80-100 parts of isopropanol, continuously dropwise adding the mixture into a reaction kettle, finishing dropwise adding within 60-120min, controlling the temperature to be 60-75 ℃ after finishing dropwise adding, continuously reacting for 120-180min, then cooling to room temperature, adding 5-10 parts of ethyl orthosilicate, stirring and mixing uniformly, and then filtering to obtain the hydrophilic organic silicon modified liquid.
The water distributor is a T-shaped wire-wound pipe water distributor, a rotary water distributor or a spray head water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The reaction mechanism of the above glass pumice biological filler is schematically described as follows:
the hydrophilic organic silicon modifier is characterized in that maleic aldehyde and 1, 1' -bis (dimethylsilyl) ferrocene are subjected to hydrosilylation reaction, organic iron is introduced into the biological filler, and a partial reaction formula is shown as follows:
the experiment mainly aims to load trace ferrocene into glass pumice biological filler to slowly release trace iron element, so that the iron element is not easy to pass quickly due to the intermolecular force of the complex, and the filler can keep the stability of the iron content to improve the activity of anaerobic microorganisms.
Maleic aldehyde and methyldiethoxysilane are subjected to hydrosilylation reaction, polyaldehyde groups are introduced into the glass pumice biological filler, the surface of the filler is subjected to charged modification, and a part of reaction formula is shown as follows:
because the glass pumice biological filler has a polyhydroxy structure and hydrophilicity, the methyldiethoxysilane can be firmly combined with the glass pumice biological filler through hydrogen bonds and chemical bonds, and two aldehyde groups are used for fixing biological molecules, so that microorganisms are fixed on the surface of the glass pumice biological filler, and the defects of short service life, weakened technical effect and the like of the charge modified biological filler based on hydrophobic polymer fibers in the prior art are overcome. Is suitable for the growth of most microorganisms; enhance the adhesion of minicells and rapidly generate a biological membrane.
The bioreactor disclosed by the invention has the advantages of the traditional UASB and IC reactors, and simultaneously, the biomass in the bioreactor is increased by adding the glass pumice biological filler which has the advantages of fast film formation, stable chemical property, large specific surface, suitability for microbial growth and the like, and the bioreactor has the advantages of short starting time, more stable system operation, strong impact load resistance and less sludge.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic diagram of the present invention.
In the figure, 1: a regulating tank; 2: a lift pump; 3: a water distributor; 4: biological fillers; 5: a biogas collection cover; 6: an anaerobic reaction tower.
Detailed Description
The invention is further illustrated by the following specific examples:
for sewage treatment by a biofilm method, whether the start-up biofilm formation is successful or not is generally represented by whether the removal rate of anaerobic COD is stabilized to be more than 60% in the start-up process, and the sampling analysis time interval is 6 h. Specific surface sampling of the filler, using a static nitrogen adsorption instrument: the model JW-BK132F was subjected to Bet specific surface testing on fillers.
Example 1
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The glass pumice biological filler is modified by being immersed in hydrophilic organic silicon modification liquid;
foaming the glass pumice biological filler to obtain a microporous structure;
the preparation method of the glass pumice biological filler comprises the following steps:
the preparation method comprises the steps of uniformly mixing 60kg of glass powder, 20kg of zeolite powder, 0.5kg of aluminum powder, 5kg of calcium carbonate, 1kg of red soil, 1kg of diatomite, 0.1kg of sodium tetraborate and 0.2kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 200 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture at 120 ℃ for 30min, then putting the obtained powder into a resistance furnace, carrying out temperature programming to 1000 ℃ for foaming for 10min, naturally cooling, crushing the obtained pumice filler, then immersing the pumice filler into hydrophilic organic silicon modified liquid, controlling the temperature at 60 ℃ for treatment for 5h, taking out the pumice filler, naturally airing the pumice filler, and then inoculating microorganisms to obtain the glass pumice biological filler.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and 1,1 '-bis (dimethylsilyl) ferrocene as raw materials, and the maleic aldehyde and the 1, 1' -bis (dimethylsilyl) ferrocene are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and methyldiethoxysilane as raw materials, and the maleic aldehyde and the methyldiethoxysilane are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
42.3Kg of maleic dialdehyde, 0.5Kg of 1, 1' -bis (dimethylsilyl) ferrocene, 0.05Kg of sodium acetate, 3.2Kg of methyldiethoxysilane, 0.1Kg of titanocene dichloride and 0.02Kg of lithium aluminum hydride are put into a reaction kettle, then stirred and mixed uniformly, heated to 60 ℃, simultaneously 20Kg of methyldiethoxysilane and 0.1Kg of titanocene dichloride catalyst are dissolved in 80Kg of isopropanol and added into the reaction kettle continuously in a dropwise manner, the dropwise addition is finished within 60min, the temperature is controlled to be 70 ℃ after the dropwise addition is finished, the reaction is continued for 120min, then cooled to room temperature, 5Kg of ethyl orthosilicate is added, stirred and mixed uniformly and filtered, and the hydrophilic organic silicon modified liquid can be obtained.
The water distributor is a T-shaped wire winding pipe water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 92 hours, and the specific surface area of the prepared filler is 6.4m2/g。
Example 2
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The glass pumice biological filler is modified by being immersed in hydrophilic organic silicon modification liquid;
foaming the glass pumice biological filler to obtain a microporous structure;
the preparation method of the glass pumice biological filler comprises the following steps:
the glass pumice biological filler is prepared by uniformly mixing 70kg of glass powder, 25kg of zeolite powder, 2.5kg of aluminum powder, 10kg of calcium carbonate, 3kg of red soil, 3kg of diatomite, 0.5kg of sodium tetraborate and 9kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 300 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture at 140 ℃ for 40min, then putting the obtained powder into a resistance furnace, raising the temperature to 1100 ℃ for foaming for 20min, naturally cooling, crushing the obtained pumice filler, immersing the crushed pumice filler into hydrophilic organic silicon modified liquid, controlling the temperature at 70 ℃ for treatment for 8h, taking out, naturally airing, and then inoculating microorganisms.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and 1,1 '-bis (dimethylsilyl) ferrocene as raw materials, and the maleic aldehyde and the 1, 1' -bis (dimethylsilyl) ferrocene are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and methyldiethoxysilane as raw materials, and the maleic aldehyde and the methyldiethoxysilane are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
charging 45Kg of maleic dialdehyde, 0.9Kg of 1, 1' -bis (dimethylsilyl) ferrocene, 0.3Kg of sodium acetate, 5.2Kg of methyldiethoxysilane, 0.3Kg of titanocene dichloride and 0.06Kg of lithium aluminum hydride into a reaction kettle, then stirring and mixing uniformly, heating to 67 ℃, simultaneously dissolving 22Kg of methyldiethoxysilane and 0.18Kg of titanocene dichloride catalyst into 86Kg of isopropanol, continuously dropwise adding into the reaction kettle, finishing dropwise adding within 100min, controlling the temperature to be 75 ℃ after finishing dropwise adding, continuing to react for 130min, then cooling to room temperature, adding 7Kg of ethyl orthosilicate, stirring and mixing uniformly, and then filtering to obtain the hydrophilic organosilicon modified liquid.
The water distributor is a rotary water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 90 hours, and the specific surface area of the prepared filler is 6.5m2/g。
Example 3
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The glass pumice biological filler is modified by being immersed in hydrophilic organic silicon modification liquid;
foaming the glass pumice biological filler to obtain a microporous structure;
the preparation method of the glass pumice biological filler comprises the following steps:
the glass pumice biological filler is prepared by uniformly mixing 80kg of glass powder, 30kg of zeolite powder, 5kg of aluminum powder, 15kg of calcium carbonate, 5kg of red soil, 5kg of diatomite, 1kg of sodium tetraborate and 2kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 400 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture for 60min at 150 ℃, then putting the obtained powder into a resistance furnace, carrying out temperature programming to 1200 ℃ for foaming for 40min, naturally cooling, crushing the obtained pumice filler, immersing the crushed pumice filler into hydrophilic organic silicon modification liquid, controlling the temperature to be 80 ℃ for treatment for 10h, taking out the pumice filler, naturally drying the crushed pumice filler, and then inoculating microorganisms.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and 1,1 '-bis (dimethylsilyl) ferrocene as raw materials, and the maleic aldehyde and the 1, 1' -bis (dimethylsilyl) ferrocene are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modification liquid takes maleic aldehyde and methyldiethoxysilane as raw materials, and the maleic aldehyde and the methyldiethoxysilane are subjected to hydrosilylation reaction.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
58.7Kg of maleic dialdehyde, 2Kg of 1, 1' -bis (dimethylsilyl) ferrocene, 0.5Kg of sodium acetate, 8.6Kg of methyldiethoxysilane, 0.7Kg of titanocene dichloride and 0.1Kg of lithium aluminum hydride are put into a reaction kettle, and then are stirred and mixed uniformly, heated to 80 ℃, simultaneously 30Kg of methyldiethoxysilane and 0.5Kg of titanocene dichloride catalyst are dissolved in 100Kg of isopropanol and are continuously added into the reaction kettle in a dropwise manner within 120min, after the dropwise addition is finished, the temperature is controlled at 85 ℃, the reaction is continued for 180min, then 10Kg of ethyl orthosilicate is added to the room temperature, the mixture is stirred and mixed uniformly, and then the hydrophilic organosilicon modifying solution is obtained after filtration.
The water distributor is a nozzle water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 84h, and the specific surface area of the prepared filler is 7.2m2/g。
Comparative example 1
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; it is characterized in that the biological filler is polyethylene spherical filler.
The water distributor is a T-shaped wire winding pipe water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 210h, and the specific surface area of the filler is 4.5m2/g。
Comparative example 2
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The preparation method of the glass pumice biological filler comprises the following steps:
the preparation method comprises the steps of uniformly mixing 70kg of glass powder, 25kg of zeolite powder, 2.5kg of aluminum powder, 10kg of calcium carbonate, 3kg of red soil, 3kg of diatomite, 0.5kg of sodium tetraborate and 9kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 300 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture at 140 ℃ for 40min, then putting the obtained powder into a resistance furnace, carrying out temperature programming to 1100 ℃ for foaming for 20min, naturally cooling, crushing the obtained pumice filler, taking out the pumice filler, naturally airing the pumice filler, and then inoculating microorganisms to obtain the glass pumice biological filler.
The water distributor is a rotary water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 180 hours, and the specific surface area of the prepared filler is 6.4m2/g。
Comparative example 3
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The preparation method of the glass pumice biological filler comprises the following steps:
the glass pumice biological filler is prepared by uniformly mixing 70kg of glass powder, 25kg of zeolite powder, 2.5kg of aluminum powder, 10kg of calcium carbonate, 3kg of red soil, 3kg of diatomite, 0.5kg of sodium tetraborate and 9kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 300 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture at 140 ℃ for 40min, then putting the obtained powder into a resistance furnace, raising the temperature to 1100 ℃ for foaming for 20min, naturally cooling, crushing the obtained pumice filler, immersing the crushed pumice filler into hydrophilic organic silicon modified liquid, controlling the temperature at 70 ℃ for treatment for 8h, taking out, naturally airing, and then inoculating microorganisms.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
45Kg of maleic aldehyde, 0.3Kg of sodium acetate, 5.2Kg of methyldiethoxysilane, 0.3Kg of titanocene dichloride and 0.06Kg of lithium aluminum hydride are put into a reaction kettle, and then are stirred and mixed uniformly, and are heated to 67 ℃, at the same time, 22Kg of methyldiethoxysilane and 0.18Kg of titanocene dichloride catalyst are dissolved in 86Kg of isopropanol and are continuously and dropwise added into the reaction kettle, after the dropwise addition is finished within 100min, the temperature is controlled to 75 ℃, the reaction is continued for 130min, then 7Kg of ethyl orthosilicate is added after cooling to room temperature, the mixture is stirred and mixed uniformly, and then the hydrophilic organic silicon modified liquid is obtained after filtration.
The water distributor is a rotary water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 122h, and the specific surface area of the prepared filler is 6.1m2/g。
Comparative example 4
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The preparation method of the glass pumice biological filler comprises the following steps:
the glass pumice biological filler is prepared by uniformly mixing 70kg of glass powder, 25kg of zeolite powder, 2.5kg of aluminum powder, 10kg of calcium carbonate, 3kg of red soil, 3kg of diatomite, 0.5kg of sodium tetraborate and 9kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 300 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture at 140 ℃ for 40min, then putting the obtained powder into a resistance furnace, raising the temperature to 1100 ℃ for foaming for 20min, naturally cooling, crushing the obtained pumice filler, immersing the crushed pumice filler into hydrophilic organic silicon modified liquid, controlling the temperature at 70 ℃ for treatment for 8h, taking out, naturally airing, and then inoculating microorganisms.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
charging 45Kg of maleic dialdehyde, 0.9Kg of 1, 1' -bis (dimethylsilyl) ferrocene and 0.3Kg of sodium acetate, adding 0.3Kg of titanocene dichloride and 0.06Kg of lithium aluminum hydride into a reaction kettle, stirring and mixing uniformly, heating to 67 ℃, simultaneously dissolving 0.18Kg of titanocene dichloride catalyst into 86Kg of isopropanol, continuously dropwise adding into the reaction kettle, controlling the temperature to 75 ℃ after completing dropwise adding, continuing to react for 130min, cooling to room temperature, adding 7Kg of ethyl orthosilicate, stirring and mixing uniformly, and filtering to obtain the hydrophilic organosilicon modifying solution.
The water distributor is a rotary water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor in the experiment is 143h, and the specific surface area of the prepared filler is 6.2m2/g。
Comparative example 5
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The preparation method of the glass pumice biological filler comprises the following steps:
the glass pumice biological filler is prepared by uniformly mixing 70kg of glass powder, 25kg of zeolite powder, 2.5kg of aluminum powder, 10kg of calcium carbonate, 3kg of red soil, 3kg of diatomite, 0.5kg of sodium tetraborate and 9kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 300 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture at 140 ℃ for 40min, then putting the obtained powder into a resistance furnace, raising the temperature to 1100 ℃ for foaming for 20min, naturally cooling, crushing the obtained pumice filler, immersing the crushed pumice filler into hydrophilic organic silicon modified liquid, controlling the temperature at 70 ℃ for treatment for 8h, taking out, naturally airing, and then inoculating microorganisms.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
0.9Kg of 1, 1' -bis (dimethylsilyl) ferrocene, 0.3Kg of sodium acetate, 5.2Kg of methyldiethoxysilane, 0.3Kg of titanocene dichloride and 0.06Kg of lithium aluminum hydride are put into a reaction kettle, and then are stirred and mixed uniformly, heated to 67 ℃, at the same time, 22Kg of methyldiethoxysilane and 0.18Kg of titanocene dichloride catalyst are dissolved in 86Kg of isopropanol and are continuously and dropwise added into the reaction kettle, dropwise adding is carried out within 100min, after the dropwise adding is finished, the temperature is controlled to be 75 ℃, reaction is continued for 130min, then 7Kg of ethyl orthosilicate is added after cooling to room temperature, stirring and mixing are uniform, and then filtering is carried out, thus obtaining the hydrophilic organic silicon modified solution.
The water distributor is a rotary water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 125h, and the specific surface area of the prepared filler is 6.2m2/g。
Comparative example 6
A biological filler anaerobic reactor comprises the following components: a regulating tank, a lift pump, a water distributor, an anaerobic reaction tower and a methane collecting cover; the adjusting tank stores sewage, and the wastewater is pumped into the anaerobic reaction tower by a lifting pump through a pipeline; the wastewater enters an anaerobic reaction tower and is uniformly dispersed on a biological filler in the anaerobic reaction tower through a water distributor; the water distributor is arranged at the bottom of the anaerobic reaction tower, and the biological filler is positioned in the middle of the anaerobic reaction tower; the biogas collecting hood is arranged at the top of the anaerobic reaction tower; the biological filler is characterized by being a glass pumice biological filler.
The preparation method of the glass pumice biological filler comprises the following steps:
the glass pumice biological filler is prepared by uniformly mixing 70kg of glass powder, 25kg of zeolite powder, 2.5kg of aluminum powder, 10kg of calcium carbonate, 3kg of red soil, 3kg of diatomite, 0.5kg of sodium tetraborate and 9kg of sodium dihydrogen phosphate, adding the mixture into a grinding machine, grinding the mixture to 300 meshes, then putting the ground mixture into a vacuum drying oven, drying the ground mixture at 140 ℃ for 40min, then putting the obtained powder into a resistance furnace, raising the temperature to 1100 ℃ for foaming for 20min, naturally cooling, crushing the obtained pumice filler, immersing the crushed pumice filler into hydrophilic organic silicon modified liquid, controlling the temperature at 70 ℃ for treatment for 8h, taking out, naturally airing, and then inoculating microorganisms.
The hydrophilic organic silicon modified liquid is prepared according to the following scheme:
charging 45Kg of maleic dialdehyde, 0.9Kg of 1, 1' -bis (dimethylsilyl) ferrocene, 0.3Kg of sodium acetate, 5.2Kg of methyldiethoxysilane, 0.3Kg of titanocene dichloride and 0.06Kg of lithium aluminum hydride into a reaction kettle, then stirring and mixing uniformly, heating to 67 ℃, simultaneously dissolving 22Kg of methyldiethoxysilane and 0.18Kg of titanocene dichloride catalyst into 86Kg of isopropanol, continuously dropwise adding into the reaction kettle, finishing dropwise adding within 100min, controlling the temperature to be 75 ℃ after finishing dropwise adding, continuing to react for 130min, then cooling to room temperature, adding 7Kg of ethyl orthosilicate, stirring and mixing uniformly, and then filtering to obtain the hydrophilic organosilicon modified liquid.
The water distributor is a rotary water distributor.
The marsh gas collecting cover is provided with a marsh gas pipeline leading to the outside.
The film forming time of the reactor of the experiment is 90 hours, and the specific surface area of the prepared filler is 6.0m2/g。
Claims (8)
1. A biological filler anaerobic reactor comprises the following components:
the device comprises a regulating tank (1), a lift pump (2), a water distributor (3), an anaerobic reaction tower (6) and a methane collecting cover (5); the adjusting tank (1) stores sewage, and wastewater is pumped into the anaerobic reaction tower (6) by a lifting pump (2) through a pipeline; the wastewater enters the anaerobic reaction tower (6) and is uniformly dispersed on the biological filler in the anaerobic reaction tower (6) through the water distributor (3); the water distributor (3) is arranged at the bottom of the anaerobic reaction tower (6), and the biological filler is positioned in the middle of the anaerobic reaction tower (6); the methane collecting hood (5) is arranged at the top of the anaerobic reaction tower (6); the biological filler is characterized in that the biological filler is a glass pumice biological filler;
the preparation method of the glass pumice biological filler comprises the following steps:
according to the mass portion, 60 to 80 portions of glass powder, 20 to 30 portions of zeolite powder, 0.5 to 5 portions of aluminum powder, 5 to 15 portions of calcium carbonate, 1 to 5 portions of red soil, 1 to 5 portions of diatomite, 0.1 to 1 portion of sodium tetraborate and 0.2 to 2 portions of sodium dihydrogen phosphate are evenly mixed and then are added into a grinding machine to be ground to 200 meshes and 400 meshes, then the mixture is put into a vacuum drying box to be dried for 30-60min at the temperature of 120-150 ℃, then placing the obtained powder into a resistance furnace, raising the temperature to 1000-1200 ℃ by program, foaming for 10-40min, naturally cooling, crushing the obtained pumice filler, then immersing the glass pumice biological filler in hydrophilic organic silicon modified liquid, controlling the temperature to be 60-80 ℃, treating for 5-10h, taking out, naturally airing, and then inoculating microorganisms to obtain the glass pumice biological filler.
2. A biofilm filler anaerobic reactor according to claim 1, wherein:
the glass pumice biological filler is modified by being immersed in hydrophilic organic silicon modification liquid.
3. A biofilm filler anaerobic reactor according to claim 1, wherein:
the glass pumice biological filler is foamed to obtain the filler with a microporous structure.
4. A biofilm filler anaerobic reactor according to claim 1, wherein:
the hydrophilic organic silicon modification liquid takes maleic aldehyde and 1,1 '-bis (dimethylsilyl) ferrocene as raw materials, and the maleic aldehyde and the 1, 1' -bis (dimethylsilyl) ferrocene are subjected to hydrosilylation reaction.
5. A biofilm filler anaerobic reactor according to claim 1, wherein:
the hydrophilic organic silicon modification liquid takes maleic aldehyde and methyldiethoxysilane as raw materials, and the maleic aldehyde and the methyldiethoxysilane are subjected to hydrosilylation reaction.
6. A biofilm filler anaerobic reactor according to claim 1, wherein:
the hydrophilic organic silicon modified liquid is prepared according to the following scheme:
according to the mass portion, 42.3-58.7 portions of maleic aldehyde, 0.5-2 portions of 1, 1' -bis (dimethylsilyl) ferrocene, 0.05-0.5 portion of sodium acetate, 3.2-8.6 portions of methyl diethoxy silane, 0.1-0.7 portion of dichloro titanocene and 0.02-0.1 portion of lithium aluminum hydride are put into a reaction kettle, then stirring and mixing evenly, heating to 60-70 ℃, simultaneously dissolving 20-30 parts of methyldiethoxysilane and 0.1-0.5 part of dichlorotitanocene catalyst into 80-100 parts of isopropanol, continuously dropwise adding the mixture into a reaction kettle, finishing dropwise adding within 60-120min, controlling the temperature to be 60-75 ℃ after finishing dropwise adding, continuously reacting for 120-180min, then cooling to room temperature, adding 5-10 parts of ethyl orthosilicate, stirring and mixing uniformly, and then filtering to obtain the hydrophilic organic silicon modified liquid.
7. A biofilm filler anaerobic reactor according to claim 1, wherein:
the water distributor is a T-shaped wire-wound pipe water distributor, a rotary water distributor or a spray head water distributor.
8. A biofilm filler anaerobic reactor according to claim 1, wherein:
the biogas collecting cover (5) is provided with a biogas pipeline leading to the outside.
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| CN101045582A (en) * | 2007-03-28 | 2007-10-03 | 南京大学 | Overlay sewage biochemical reactor |
| CN102515551A (en) * | 2011-12-01 | 2012-06-27 | 南京工业大学 | Porous foam glass carrier for rapid mass transfer biological fluidized bed and preparation method and application thereof |
| CN202729884U (en) * | 2012-05-28 | 2013-02-13 | 苏州苏水环境工程有限公司 | UBF (upflow blanket filter) anaerobic reactor with filter layer at top for treating chemical industrial wastewater |
| CN204417211U (en) * | 2014-12-16 | 2015-06-24 | 江苏源能环境工程有限公司 | A kind of U-IC efficient anaerobic tower |
| CN105126739A (en) * | 2015-08-31 | 2015-12-09 | 浙江大学 | Water treatment suspended filler enhancing nitrogen and phosphorus adsorption and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101045582A (en) * | 2007-03-28 | 2007-10-03 | 南京大学 | Overlay sewage biochemical reactor |
| CN102515551A (en) * | 2011-12-01 | 2012-06-27 | 南京工业大学 | Porous foam glass carrier for rapid mass transfer biological fluidized bed and preparation method and application thereof |
| CN202729884U (en) * | 2012-05-28 | 2013-02-13 | 苏州苏水环境工程有限公司 | UBF (upflow blanket filter) anaerobic reactor with filter layer at top for treating chemical industrial wastewater |
| CN204417211U (en) * | 2014-12-16 | 2015-06-24 | 江苏源能环境工程有限公司 | A kind of U-IC efficient anaerobic tower |
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