CN109304083A - A kind of dedicated moisture retention filler of bio-trickling filter - Google Patents
A kind of dedicated moisture retention filler of bio-trickling filter Download PDFInfo
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- CN109304083A CN109304083A CN201811071374.7A CN201811071374A CN109304083A CN 109304083 A CN109304083 A CN 109304083A CN 201811071374 A CN201811071374 A CN 201811071374A CN 109304083 A CN109304083 A CN 109304083A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- 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
- C02F3/04—Aerobic processes using trickle filters
-
- 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
-
- 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
- C02F3/107—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
- C02F3/34—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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Microbiology (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Molecular Biology (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of dedicated moisture retention fillers of bio-trickling filter, including following components in percentage by weight: the water-retaining agent of 10-20%, the organic filler of 10-20%, the porous foam of 20-40%, the rubble of 20-40% and the strain of 2-5%；Water-retaining agent is acrylamide and acrylic acid salt copolymer gel piece, and water-retaining agent infiltrates the moisture content of the hydrogen peroxide containing 2-5%；Organic filler is crushing straw, waste wood, any several in bark and husk, and 1) dipping by lye is successively passed through in organic filler, 2) dry, 3) pre-treatment step of the liquid immersion that froths.The present invention is in order to solve deficiency existing for the bio-trickling filter filler of existing exhaust gas treatment technology, using water-retaining agent, organic filler, porous foam and rubble as the reacting environment of strain fermentation, substantially increase the water-retaining property and specific surface area of filler, filler infiltrates abundant and uniform moisture when spray, make the residence time long enough of exhaust gas, to reduce the dosage of shower water, exhaust treatment efficiency is improved.
Description
Technical field
The present invention relates to biological island technical field of waste gas treatment more particularly to a kind of dedicated moisturizings of bio-trickling filter
Property filler.
Background technique
The processes such as industrial production, sewage treatment and garbage loading embeading can generate volatile organic contaminant (VOCs) and malodorant
Matter, these pollutants, which are spilt into air, to pollute the environment, and is detrimental to health, and as the flowing of air is spilt into everywhere
Regional effect is brought, therefore needs that technological means appropriate is taken to be handled before discharging.H2S, mercaptan, carbonyl sulfur etc. contain
Sulfur material, the nitrogen substances such as ammonia, ethamine, nitrogen oxides, benzene class, aromatic hydrocarbon and halogenated hydrocarbons etc. be VOCs common in exhaust gas and
Odorant.Compared with conventional physics, chemical method, biologic treating technique has efficient, low in cost, easy to operate, clear
The features such as clean, without secondary pollution, thus be widely used.
Biofilter, biological scrubber, bio-trickling filter are 3 kinds of common biological treatment technology for waste gas, wherein trickling filter
Also referred to as bio-trickling filter, the filter bed and sedimentation basin being mainly paved by one with rubble form, and are carried out in waste water by heterotroph
The processing of organic pollutant, waste water is by water distribution system, and from filter tank top, cloth spills.Bio-trickling filter is by waste water in recent years
Processing turns to exhaust gas application, has received widespread attention, sludge yield low with operating cost, lower, structure it is simple and
It is stable, and the advantages that be able to bear high load capacity and high toxicity.
But in existing exhaust gas treatment technology, the defect of bio-trickling filter be by waste water lifting to reactor top at
This, high-biomass and residence time short caused biofilm detachment, the residence time, the short Water l oad that will lead to out was high, and this problem exists
It will lead to subsequent process in lead to the problem of.Its main cause has two, first is that the specific surface area of packing layer is smaller, strain
Biofilm rate is lower and reaction compartment is smaller, so exhaust treatment efficiency is lower；Second is that the moisture retention of packing layer is poor, need constantly
Ground spray, but spray will cause the biomembrane just generated and just be fallen by current scour, while water flow is larger will also result in strain table
The oxygen in face is less, so that aerobic strain production efficiency is low, even more greatly reduces exhaust treatment efficiency.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of bio-trickling filter proposed is dedicated
Moisture retention filler.
To achieve the goals above, present invention employs following technical solutions:
A kind of dedicated moisture retention filler of bio-trickling filter, including following components in percentage by weight: the water-retaining agent of 10-20%,
The organic filler of 10-20%, the porous foam of 20-40%, the rubble of 20-40% and the strain of 2-5%.
Preferably, water-retaining agent is specially acrylamide and acrylic acid salt copolymer gel piece.
Preferably, the moisture content of water-retaining agent infiltration hydrogen peroxide containing 2-5%.
Preferably, organic filler is specially crushing straw, waste wood, any several in bark and husk.
Preferably, the pretreatment of organic filler is the following steps are included: 1) dipping by lye, and 2) dry, 3) froth liquid immersion.
Preferably, in step 1), lye solute is any one of NaOH or KOH, and the concentration of lye is 5-20mol%.
Preferably, water of the liquid by weight percent 88-95% that froths in step 3), the fatty acid sodium salt and 0- of 5-10%
2% granulated sugar composition.
Preferably, porous foam is specially polyurethane foam, polystyrene foam, expanded polyolefin and nitrile rubber foam
In it is any several.
Preferably, rubble is specially broken float stone, broken cobblestone, detritus rubbiss, any several in gravel-concrete rubbish.
Preferably, strain is specially the activated sludge after sewage treatment.
Preferably, a kind of dedicated moisture retention filler of bio-trickling filter the preparation method comprises the following steps: under the drying condition of anaerobic,
According to recipe ratio, each component is stirred and is uniformly formed, obtains the moisture retention filler of finished product.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention fills out water-retaining agent, organic filler, porous foam, rubble and the mixture prepared bio-trickling filter of strain
Material, the reacting environment of water-retaining agent, organic filler, porous foam and rubble as strain fermentation substantially increase the water conservation of filler
Property, compared to the bio-trickling filter that existing exhaust gas treatment technology uses, packing specific area of the invention is high, moisture retention is good, spray
Filler infiltrates abundant and uniform moisture when leaching, makes the residence time long enough of exhaust gas, to reduce the dosage of shower water, improves useless
Gas disposal efficiency.
2. the organic filler that the present invention uses is specially crushing straw, waste wood, any several, the rubble in bark and husk
Specially broken float stone, broken cobblestone, detritus rubbiss, any several in gravel-concrete rubbish, strain is specially sewage treatment
Activated sludge afterwards, to also recycle some agricultural fibre rubbish, building waste and sewage treatment during exhaust gas treatment
Product is a kind of new concept for polluting integrated treatment.
3. the present invention is using organic filler as the organic origin of strain, it is thus possible to which the volatility for handling low concentration has
Machine object or foul gas, while organic filler successively impregnates lye and the liquid that froths, alkaline surface is conducive to absorb strain metabolism
The sour gas of generation, the liquid that froths further extend gas residence time using the foam for improving filler surface；Water-retaining agent leaching
Moisten the moisture content containing hydrogen peroxide, during exhaust gas treatment slow release oxygen and moisture, to improve the production effect of aerobic bacterium
Rate improves the biofilm rate of biomembrane, further improves exhaust treatment efficiency.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment 1:
A kind of dedicated moisture retention filler of bio-trickling filter, including following components in percentage by weight: 15% water-retaining agent, 15%
Organic filler, 32% porous foam, 35% rubble and 3% strain.Water-retaining agent is specially sodium acrylate-acrylamide block
Polymer gel block；Water-retaining agent infiltration contains the moisture content of 3% hydrogen peroxide.Organic filler is specially crushing straw and husk mixture, and
By 10 mol%NaOH aqueous solution soakings, the liquid that froths is impregnated after drying again, froth water of the liquid by weight percent 92%, 7% rouge
Fat acid sodium-salt and 1% granulated sugar composition.Porous foam is specially irregular polyurethane cellular foam block: polystyrene porous bubble
Foam bead=1:1(weight ratio) it mixes.Rubble is mixed by broken float stone and gravel-concrete rubbish.Strain is specially sewage
Activated sludge after processed.A kind of dedicated moisture retention filler of bio-trickling filter the preparation method comprises the following steps: anaerobic dried strip
Under part, according to recipe ratio, each component is stirred and is uniformly formed, obtain the moisture retention filler of finished product.
Embodiment 2:
A kind of dedicated moisture retention filler of bio-trickling filter, including following components in percentage by weight: 14% water-retaining agent, 17%
Organic filler, 28% porous foam, 38% rubble and 3% strain.Water-retaining agent is specially (methyl) acrylyl oxy-ethyl front three
Ammonium chloride-acrylamide block polymers gel piece；Water-retaining agent infiltration contains the moisture content of 3% hydrogen peroxide.Organic filler is specially
Crushing straw, bark and sawdust mixture, and pass through 5 mol%KOH aqueous solution soakings, the liquid that froths is impregnated after drying again, the liquid that froths is
The sodium soap saline solution that concentrations by weight is 8%.Porous foam is specially nitrile rubber porous foam block: polyvinyl chloride is more
Hole foam block=2:1(weight ratio) it mixes.Rubble is mixed by broken cobblestone and detritus rubbiss.Strain is specially sewage
Activated sludge after processed.A kind of dedicated moisture retention filler of bio-trickling filter the preparation method comprises the following steps: anaerobic dried strip
Under part, according to recipe ratio, each component is stirred and is uniformly formed, obtain the moisture retention filler of finished product.
Embodiment 3:
A kind of dedicated moisture retention filler of bio-trickling filter, including following components in percentage by weight: 17% water-retaining agent, 16%
Organic filler, 35% porous foam, 30% rubble and 2% strain.Water-retaining agent is specially (the third sulphur of acrylamido-methyl
Acid)-acrylamide block polymers gel piece；Water-retaining agent infiltration contains the moisture content of 2% hydrogen peroxide.Organic filler is specially broken straw
Stalk and husk mixture, and pass through 10 mol%NaOH aqueous solution soakings, the liquid that froths is impregnated after drying again, the liquid that froths is by weight hundred
Point than 91% water, 6% fatty acid sodium salt and 3% granulated sugar composition.Porous foam is specially irregular polyurethane cellular foam
Block.Rubble is mixed by building wastes such as rubble, gravel-concretes.Strain is specially the activated sludge after sewage treatment.One
Kind of the dedicated moisture retention filler of bio-trickling filter the preparation method comprises the following steps: under the drying condition of anaerobic, according to recipe ratio, by each group
Divide to stir and uniformly form, obtains the moisture retention filler of finished product.
Comparative example:
Using current industrial common common fillers, specially natural inert filler or synthetic filling, by taking diatomite as an example, with
Handle 100mg/m3The exhaust gas of toluene is sample, charge flow rate 1m3/ h, residence time 60s, water spray are 1 m3/ h, similarly
Amount of filler and water spray, compared with embodiment 1-3, the results are shown in Table 1:
The exhaust treatment efficiency of 1 moisture retention filler of table
| Filling kind | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example |
| Toluene goes out gas concentration/mg/m3 | 26.1 | 24.5 | 22.1 | 87.6 |
As shown in table 1, using quick exhaust-gas treatment experiment method, the residence time, only 60s(industrially commonly used 100s or more), first
Benzene inlet gas concentration is only 100 mg/m3, belong to the volatile organic compounds of low concentration.As shown in Table 1, toluene of the invention is cut
It stays rate very high, reaches 70% or more, be much higher than the rejection of existing bio-trickling filter, illustrate that the present invention has wide answer
Use prospect.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (11)
1. a kind of dedicated moisture retention filler of bio-trickling filter, which is characterized in that including following components in percentage by weight: 10-
20% water-retaining agent, the organic filler of 10-20%, the porous foam of 20-40%, the rubble of 20-40% and the strain of 2-5%.
2. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1, which is characterized in that the water-retaining agent
Specially acrylamide and acrylic acid salt copolymer gel piece.
3. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1 or 2, which is characterized in that the guarantor
The moisture content of aqua infiltration hydrogen peroxide containing 2-5%.
4. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1, which is characterized in that described organic to fill out
Expect to be specially crushing straw, waste wood, it is any several in bark and husk.
5. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1 or 4, which is characterized in that described to have
The pretreatment of machine filler is the following steps are included: 1) dipping by lye, and 2) dry, 3) froth liquid immersion.
6. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 5, which is characterized in that the step 1)
In, lye solute is any one of NaOH or KOH, and the concentration of the lye is 5-20mol%.
7. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 5, which is characterized in that the step 3)
In water of the liquid by weight percent 88-95% that froths, the granulated sugar composition of the fatty acid sodium salt of 5-10% and 0-2%.
8. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1, which is characterized in that the porous bubble
Foam is specially polyurethane foam, polystyrene foam, any several in expanded polyolefin and nitrile rubber foam.
9. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1, which is characterized in that the rubble tool
Body is broken float stone, broken cobblestone, and detritus rubbiss is any several in gravel-concrete rubbish.
10. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1, which is characterized in that the strain
Activated sludge specially after sewage treatment.
11. the dedicated moisture retention filler of a kind of bio-trickling filter according to claim 1, which is characterized in that preparation method
Are as follows: under the drying condition of anaerobic, according to recipe ratio, each component is stirred and is uniformly formed, obtain the moisture retention filler of finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071374.7A CN109304083A (en) | 2018-09-14 | 2018-09-14 | A kind of dedicated moisture retention filler of bio-trickling filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811071374.7A CN109304083A (en) | 2018-09-14 | 2018-09-14 | A kind of dedicated moisture retention filler of bio-trickling filter |
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| CN109304083A true CN109304083A (en) | 2019-02-05 |
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| CN201811071374.7A Pending CN109304083A (en) | 2018-09-14 | 2018-09-14 | A kind of dedicated moisture retention filler of bio-trickling filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274873A (en) * | 2021-05-31 | 2021-08-20 | 上海市环境科学研究院 | Livestock and poultry field ammonia control deodorization device and method adopting low-pressure-drop micro-foam composite filler |
| CN113307369A (en) * | 2021-06-08 | 2021-08-27 | 上海市环境科学研究院 | Livestock and poultry farm manure recycling and ammonia-control carbon-reduction full-chain emission reduction system and method |
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2018
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| US20040099588A1 (en) * | 2001-04-13 | 2004-05-27 | Harry L. Nurse, Jr. | System for treating wastewater |
| CN201189448Y (en) * | 2007-10-10 | 2009-02-04 | 林云明 | Novel fillers for biological treatment of waste gas |
| CN107096374A (en) * | 2017-05-12 | 2017-08-29 | 南京科技职业学院 | A kind of method that enhanced biological drop filter tower handles toluene waste gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113274873A (en) * | 2021-05-31 | 2021-08-20 | 上海市环境科学研究院 | Livestock and poultry field ammonia control deodorization device and method adopting low-pressure-drop micro-foam composite filler |
| CN113307369A (en) * | 2021-06-08 | 2021-08-27 | 上海市环境科学研究院 | Livestock and poultry farm manure recycling and ammonia-control carbon-reduction full-chain emission reduction system and method |
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Application publication date: 20190205 |