CN106006947B - Livestock breeding wastewater processing biofilm packing and its preparation process - Google Patents
Livestock breeding wastewater processing biofilm packing and its preparation process Download PDFInfo
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- CN106006947B CN106006947B CN201610364309.8A CN201610364309A CN106006947B CN 106006947 B CN106006947 B CN 106006947B CN 201610364309 A CN201610364309 A CN 201610364309A CN 106006947 B CN106006947 B CN 106006947B
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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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/107—Inorganic materials, e.g. sand, silicates
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/109—Characterized by the shape
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a kind of livestock breeding wastewater processing biofilm packing and preparation method thereof, the density of the biofilm packing is 0.96~0.98g/cm3, it is made of the component of following parts by weight: 58~62 parts of high density polyethylene (HDPE), 10~18 parts of montmorillonite, 10~18 parts of Powdered Activated Carbon, 11~20 parts of precipitated calcium carbonate, 3~5 parts of lac resin, 1.5~3 parts of gelatin, 0.5~1 part of cerous sulfate, fuller olefinic carbon 60 .5~0.8 part.Biofilm packing of the invention can be effectively reduced COD (COD) concentration in livestock breeding wastewater, ammonia nitrogen (NH suitable for livestock breeding wastewater processing3- N) concentration and total phosphorus (TP) concentration.
Description
Technical field
The present invention relates to a kind of biofilm packings, and in particular to a kind of livestock breeding wastewater processing biofilm packing and its
Preparation process.Belong to technical field of sewage.
Background technique
The COD (COD) of livestock breeding wastewater is at concentrations up to 10000mg/L, ammonia nitrogen (NH3- N) concentration 500~
1300mg/L, total phosphorus (TP) 50~100mg/L of concentration are a kind of organic wastewater rich in N, P, are a kind of more serious dirts in town and country
Dye source, processing difficulty are big, at high cost.The characteristics of livestock breeding wastewater is as follows: discharge amount is big, and impact load is big；Solid-liquid mixes, and has
Machine matter concentration is high, and processing difficulty is very big；N, P nutrient inventory is especially high, and carbon-nitrogen ratio is low.
Anaerobic digestion techniques are widely used at present, but after anaerobic digestion, the pollutant concentration of water outlet, especially N, P
Concentration it is still higher, discharge standard is not achieved, also needs to be further processed, but existing processing mode for fear of the time and
Equipment cost etc. constrains its promotion and application.
Relative to existing most of sewage water treatment method, moving bed biofilm reactor (MBBR technique) has obvious excellent
Gesture is a kind of leather novel membrane-biological membrane reactor, microorganism can be made to be attached on carrier, the carrier of floating in reactor with
The convolution inverting action of mixed liquor and move freely, thus achieve the purpose that handle sewage.MBBR technique is raw for modern city
The new demand of sewage treatment living, in conjunction with suspension growth technique and apposition growth technique, while further relating to city domestic sewage, work
The organic matter and nitrogen phosphorus of industry sewage are handled, increasingly by the favor of environmental worker.
MBBR technique can obtain good the sanitary sewage of low-concentration organic and the trade effluent of high-enriched organics
Treatment effect, the organic matter in sewage can be removed well, have good development prospect.Biofilm packing, also referred to as
Biofilm carrier is the place and the place of its each pollutant of degrading of different types of microorganisms apposition growth, is MBBR
Core.The quality of carrier performance, greatly affected the complexity of microorganism colonization, in reactor the number of biomass and
The effect of final sewage treatment.
Continuous concern with domestic and foreign scholars and researcher to MBBR technique, MBBR new packing and correlated performance
Research is also in constantly carrying out.In recent years, various new packings and modified filler emerge one after another, and have greatly pushed MBBR
The development of technique.Biofilm packing can substantially be divided into two class of organic filler and inorganic filler, the former biocompatibility is poor, after
Person's specific surface area, compressive strength etc. are poor, existing filler cannot realize simultaneously good biocompatibility, large specific surface area and
Compressive strength is big.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of livestock breeding wastewater processing biology
Film filler.
The present invention also provides the preparation processes of the biofilm packing.
To achieve the above object, the present invention adopts the following technical solutions:
Livestock breeding wastewater processing biofilm packing, density are 0.96~0.98g/cm3, it is by following parts by weight
Made of component: 58~62 parts of high density polyethylene (HDPE), 10~18 parts of montmorillonite, 10~18 parts of Powdered Activated Carbon, precipitated calcium carbonate
11~20 parts, 3~5 parts of lac resin, 1.5~3 parts of gelatin, 0.5~1 part of cerous sulfate, fuller olefinic carbon 60 .5~0.8 part.
Preferably, the biofilm packing is hollow tubular, is internally provided with the reinforcing rib axially intersected, outer surface is in saw
Dentation.
It is further preferred that the lac resin partial size is 10-80 mesh
It is further preferred that the diameter of hollow tube is suitable with height.
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material.
In the step (4), biofilm packing that extrusion forming obtains is hollow tubular, is internally provided with and axially intersects
Reinforcing rib, outer surface are serrated.
Beneficial effects of the present invention:
Biofilm packing of the invention, it is highly dense using high density polyethylene (HDPE), Powdered Activated Carbon, precipitated calcium carbonate and gelatin
Spending polyethylene has preferable compressive strength, good mechanical property, and Powdered Activated Carbon, precipitated calcium carbonate and gelatin have preferable raw
Object compatibility and biggish specific surface area are also added into fullerene and cerous sulfate, and promote each component to mix using montmorillonite
It is even.Wherein, the fullerene after abundant ball milling, particle is very thin, and effective surface area increases, and hydrophobic surface is easier and cell membrane
Rouge interacts, to promote microorganism colonization.Cerous sulfate after abundant ball milling, electrical neutralization and net are caught volume and are swept
Effect is more powerful, strengthens coagulation effect, and formation wadding body speed is fast, wadding body is closely knit, moisture content is low, goes turbid rate height, water outlet turbid
It spends low, further, it is also possible to improve microorganism most degradation speed, has stronger activation to microbial enzyme, and can promote micro-
Bio secretion Extracellular polymers improve protein/polysaccharide ratio of Extracellular polymers, further stimulate microbial life activity,
With good bioactivity.Montmorillonite has very strong adsorption capacity and cation exchange property, can be with using it as carrier
Each component is uniformly mixed.By the transformation of synergistic effect and internal structure, gained biofilm packing has good the above components
Good biocompatibility and biggish large specific surface area and compressive strength, are used for moving bed biofilm reactor, carry out
Livestock breeding wastewater processing, can be effectively reduced COD (COD) concentration in livestock breeding wastewater, ammonia nitrogen (NH3-N)
Concentration and total phosphorus (TP) concentration.
The density of gained filler of the invention is 0.96~0.98g/cm3, density is close to water, and density is in 1.0g/ after biofilm
cm3Left and right makes it be easy to that fluidisation can be realized, have good with water flow mixed flow, lesser aeration or stirring in reactor
Good fluidizing performance.
Lac resin of the invention is a kind of natural resin, not soluble in water but be dissolved in ethyl alcohol, and hydrophily and biology are affine
Property is good, is commonly used for adhesive, may make that product structure is more stable.
Biofilm packing of the invention is hollow tubular, is internally provided with the reinforcing rib axially intersected, and outer surface is in sawtooth
Shape, it is such to design the large specific surface area so that filler, there is more preferably performance.
In preparation method of the invention, microwave treatment and supersonic oscillations are used, this may cause each component shape
At mixture internal structure change, generate more micropores, and then increase specific surface area, be more advantageous to the appendix of microorganism
Growth.
Specific embodiment
Below with reference to embodiment, the present invention will be further elaborated, it should explanation, following the description merely to
It explains the present invention, its content is not defined.
Fullerene according to the present invention is C60。
Embodiment 1:
Livestock breeding wastewater processing biofilm packing of the invention, density 0.96g/cm3, it is by following components system
At: high density polyethylene (HDPE) 58kg, montmorillonite 10kg, Powdered Activated Carbon 10kg, precipitated calcium carbonate 11kg, lac resin 3kg are bright
Glue 1.5kg, cerous sulfate 0.5kg, fuller olefinic carbon 60 .5kg.
The lac resin partial size is 10 mesh
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Embodiment 2:
Livestock breeding wastewater processing biofilm packing of the invention, density 0.98g/cm3, it is by following components system
At: high density polyethylene (HDPE) 62kg, montmorillonite 18kg, Powdered Activated Carbon 18kg, precipitated calcium carbonate 20kg, lac resin 5kg are bright
Glue 3kg, cerous sulfate 1kg, fuller olefinic carbon 60 .8kg.
The lac resin partial size is 20 mesh
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Embodiment 3:
Livestock breeding wastewater processing biofilm packing of the invention, density 0.96g/cm3, it is by following components system
At: high density polyethylene (HDPE) 60kg, montmorillonite 17kg, Powdered Activated Carbon 12kg, precipitated calcium carbonate 18kg, lac resin 3kg are bright
Glue 3kg, cerous sulfate 0.5kg, fuller olefinic carbon 60 .8kg.
The lac resin partial size is 35 mesh
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Embodiment 4:
Livestock breeding wastewater processing biofilm packing of the invention, density 0.98g/cm3, it is by following components system
At: high density polyethylene (HDPE) 58kg, montmorillonite 12kg, Powdered Activated Carbon 17kg, precipitated calcium carbonate 12kg, lac resin 5kg are bright
Glue 1.5kg, cerous sulfate 1kg, fuller olefinic carbon 60 .5kg.
The lac resin partial size is 55 mesh
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Embodiment 5:
Livestock breeding wastewater processing biofilm packing of the invention, density 0.97g/cm3, it is by following components system
At: high density polyethylene (HDPE) 60kg, montmorillonite 15kg, Powdered Activated Carbon 15kg, precipitated calcium carbonate 16kg, lac resin 4kg are bright
Glue 2kg, cerous sulfate 0.8kg, fuller olefinic carbon 60 .6kg.
The lac resin partial size is 80 mesh
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Comparative example 1:
A kind of biofilm packing, is made of the following components: high density polyethylene (HDPE) 60kg, montmorillonite 15kg, and powder is living
Property charcoal 15kg, precipitated calcium carbonate 16kg, lac resin 4kg, gelatin 2kg, cerous sulfate 0.8kg, fuller olefinic carbon 60 .6kg.
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and the diameter of hollow tube is the 2/3 of height.
Comparative example 2:
A kind of biofilm packing, is made of the following components: high density polyethylene (HDPE) 60kg, Powdered Activated Carbon 15kg, gently
Matter calcium carbonate 16kg, lac resin 4kg, gelatin 2kg, cerous sulfate 0.8kg, fuller olefinic carbon 60 .6kg.
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE), Powdered Activated Carbon, lightweight carbonic acid of formula ratio is added
Calcium, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Comparative example 3:
A kind of biofilm packing, is made of the following components: high density polyethylene (HDPE) 60kg, montmorillonite 15kg, and powder is living
Property charcoal 15kg, precipitated calcium carbonate 16kg, lac resin 4kg, gelatin 2kg.
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) abundant ball milling；
(3) into the solution after ball-milling treatment, the high density polyethylene (HDPE) of formula ratio, montmorillonite, Powdered Activated Carbon, light is added
Matter calcium carbonate, gelatin, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Comparative example 4:
A kind of biofilm packing, is made of the following components: high density polyethylene (HDPE) 60kg, montmorillonite 15kg, and powder is living
Property charcoal 15kg, precipitated calcium carbonate 16kg, lac resin 4kg, gelatin 2kg, cerous sulfate 0.8kg, fuller olefinic carbon 60 .6kg.
The preparation method of above-mentioned biofilm packing, comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio is added；
(3) high density polyethylene (HDPE), montmorillonite, Powdered Activated Carbon, precipitated calcium carbonate, gelatin and the sulfuric acid of formula ratio is added
Cerium is uniformly mixed；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is filled out to get biomembrane
Material, hollow tubular are internally provided with the reinforcing rib axially intersected, and outer surface is serrated, and the diameter of hollow tube is suitable with height.
Test example
Examples 1 to 5 and 1~4 gained filler of comparative example are individually fixed in moving bed biofilm reactor, filler
Filling rate is that 40%, pH is 6.3~7.6, and temperature is 20~30 DEG C, by taking the livestock breeding wastewater of certain cultivation factory as an example, water of intaking
Matter situation: COD (COD) concentration is 10000mg/L, ammonia nitrogen (NH3- N) concentration be 1200mg/L, total phosphorus (TP) concentration
For 90mg/L, operation 24 hours, the residence time 7 days, the results are shown in Table 1 daily.
The effluent quality situation after moving bed biofilm reactor is handled of table 1.
COD, NH of Examples 1 to 53- N and TP concentration reach national emission standard.COD, NH of comparative example 1~43-
N and TP removal rate illustrates that each component of the present invention has preferable synergistic effect significantly lower than the present invention, livestock breeding wastewater
Better processing effect.
Above-mentioned, although specific embodiments of the present invention have been described, not to the limit of the scope of the present invention
System, based on the technical solutions of the present invention, those skilled in the art do not need to make the creative labor can make it is each
Kind modification or deformation are still within protection scope of the present invention.
Claims (5)
1. livestock breeding wastewater processing biofilm packing, which is characterized in that its density is 0.96~0.98g/cm3, it is by following
Made of the component of parts by weight: 58~62 parts of high density polyethylene (HDPE), 10~18 parts of montmorillonite, 10~18 parts of Powdered Activated Carbon, gently
11~20 parts of matter calcium carbonate, 3~5 parts of lac resin, 1.5~3 parts of gelatin, 0.5~1 part of cerous sulfate, fuller olefinic carbon 60 .5~0.8 part,
The biofilm packing is hollow tubular, is internally provided with the reinforcing rib axially intersected, outer surface is serrated.
2. biofilm packing according to claim 1, which is characterized in that the lac resin partial size is 10-80 mesh.
3. biofilm packing according to claim 2, which is characterized in that the diameter of hollow tube is suitable with height.
4. the preparation method of biofilm packing described in any one of claims 1 to 3, which is characterized in that comprising steps of
(1) lac resin of formula ratio is dissolved in dehydrated alcohol, the ethanol solution of lac resin is made；
(2) fullerene of formula ratio, abundant ball milling is added；
(3) into the solution after ball-milling treatment, high density polyethylene (HDPE), montmorillonite, Powdered Activated Carbon, the lightweight carbon of formula ratio is added
Sour calcium, gelatin and cerous sulfate, 750W microwave treatment 3 minutes, supersonic oscillations 1 hour；
(4) ethyl alcohol volatilizees naturally, obtains solid material, solid material is granulated, extrusion forming is to get biofilm packing.
5. the preparation method according to claim 4, which is characterized in that in the step (4), biology that extrusion forming obtains
Film filler is hollow tubular, is internally provided with the reinforcing rib axially intersected, outer surface is serrated.
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| JPS5390065A (en) * | 1977-01-18 | 1978-08-08 | Somar Mfg | Filter element for deeoiler |
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