CN102671536B - Deodorization method taking waste as main raw material of biological filter packing - Google Patents
Deodorization method taking waste as main raw material of biological filter packing Download PDFInfo
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- CN102671536B CN102671536B CN201210176893.6A CN201210176893A CN102671536B CN 102671536 B CN102671536 B CN 102671536B CN 201210176893 A CN201210176893 A CN 201210176893A CN 102671536 B CN102671536 B CN 102671536B
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- biological deodorizing
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- deodorizing filler
- vinasse
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- 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
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- 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
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Abstract
The invention discloses biological deodorization packing which is granular and mainly comprises the following components in percentage by weight: 40-45% of secondary-fermentation domestic garbage compost, 30.5-35.5% of distillers' grains and the balance of material A consisting of egg shells, wherein the distillers' grains contain lime powder of 1-3% of the weight of fresh distillers' grains, adhesive of not greater than 1/5 of the total weight of the material A and humidizer of 2-7% of the adhesive weight. The invention also discloses a preparation method of the biological deodorization packing. The biological deodorization packing disclosed by the invention has high microorganism content without supplement of alkalinity reagents, can improve the removal efficiency of H2S and NH3 in the malodorous gas, and also realizes recycling and high-value utilization of the organic waste while disposing the malodorous gas.
Description
Technical field
The invention belongs to Environmental waste process field, relate to particularly a kind of biological deodorizing filler.
The invention still further relates to the preparation method of above-mentioned biological deodorizing filler.
The invention still further relates to the application of above-mentioned biological deodorizing filler.
Background technology
Refuse pollution has become a great problem that hinders urban development and affect environmental protection cause, and consequent odor pollution causes very big harm to health and ecological environment, meanwhile foul gas has also been separated separately from atmosphere pollution becomes one of the world's seven overall situation public hazards.Tradition foul gas adopts physics, chemical method to process conventionally, and after these method secondary pollutions, regeneration and last handling process are complicated.Biological deodorization technology is compared with traditional physical chemistry method, integrates absorption, degrades, and the possibility that produces secondary pollution is little, and pollutes and can not shift, and in running, energy consumption is lower.Therefore be widely used.Filler is the main body of biofilter, and the character of filler directly affects the handling property of life filter.Bio-filter stuffing kind is more, and along with the reinforcement of organic waste sub-prime resource, higher value application, the research of " waste recycling " filler attracts wide attention in recent years.
Using compost as bio-filter stuffing, can guarantee the self-sufficient of filler, waste recycling, so generally to adopt composting production be filler in biofilter.But compost is a continuous mineralising of organic matter and humified process.Different times consumer garbage compost degree of humification is different, so difference its deodorizing capability of stage compost that becomes thoroughly decomposed is different.Conventionally the consumer garbage compost sample of secondary fermentation 5-12 days is in temperature raising period, and microbial activity is stronger, and the aromaticity of compost Humus material and degree of unsaturation increase, and compost maturity degree is desirable; Can be for reactor provides good retentiveness, sufficient nutrient and abundant microbial population, stronger to foul gas purification efficiency.
Egg shell basis in rubbish is CaCO
3, content is approximately 83-85%, the H that it can produce in nitration reaction process
+while being accumulated to a certain degree, under acid condition, dissolve, for nitrification provides basicity source.And contain various trace elements (zinc, copper, manganese, iron, selenium etc.), can be reactor sufficient nutrient is provided.
Vinasse in rubbish contain abundant crude protein and crude fat.Vinasse mineral content is also very abundant, and wherein the main trace element such as calcium, iron content is higher more than 10 times than wheat, corn.And it is loosely organized, can makes reacting appliance for good retentiveness and sufficient nutrient is provided.
Summary of the invention
The object of the present invention is to provide a kind of biological deodorizing filler.
Another object of the present invention is to provide a kind of method of preparing above-mentioned biological deodorizing filler.
For achieving the above object, biological deodorizing filler provided by the invention is graininess, and Main Ingredients and Appearance includes by weight:
The consumer garbage compost 40%-45% of secondary fermentation, vinasse 30.5%-35.5%, surplus is the material A that egg shell forms; Wherein, in vinasse, include by the pulverized limestone of fresh grain stillage weight 1%-3%;
Be no more than the adhesive of material A gross weight 1/5, and with respect to the humidizer of binder wt 2-7%.
Described biological deodorizing filler, wherein, biological deodorizing filler is the spheric granules of particle diameter 6-12mm.
Described biological deodorizing filler, wherein, the addition of humidizer is 5% of binder wt.
The preparation method of biological deodorizing filler provided by the invention, key step is:
1) consumer garbage compost of secondary fermentation and egg shell are levigate;
2) in the vinasse after airing, add the pulverized limestone of fresh grain stillage weight 1%-3%, pH value is adjusted to 8-11, place stable;
3) consumer garbage compost of secondary fermentation, vinasse and egg shell are mixed, then add adhesive and humidizer granulation shape.
Described preparation method, wherein, in step 1, the consumer garbage compost of secondary fermentation refers to the secondary fermentation consumer garbage compost of 5-12 days.
Described preparation method, wherein, in step 2, adhesive total amount is no more than 1/5 of biological deodorizing filler total amount, and the addition of humidizer is the 2%-7% of binder wt, and preferably the addition of humidizer is 5% of binder wt.
Described preparation method wherein, is to make with comminutor the spheric granules that diameter is 6-12mm in step 3.
Biological deodorizing filler of the present invention can be applied in biofilter, and biological deodorizing filler is packed in biofilter, in the surge chamber of this bottom, biofilter, fills out and is covered with quartz sand, is provided with one deck air distribution plate gas uniform is passed in biofilter on quartz sand.Wherein, biological deodorizing filler loading height in biofilter is 1-1.2m.
Biological deodorizing filler of the present invention adopts the compost with certain rotten degree that microbial population is provided, and utilizes and in egg shell, contain a large amount of CaCO
3for the required basicity of nitration reaction source, utilize the loosely organized of vinasse and its abundant micronutrient levels make reacting appliance for good retentiveness and sufficient nutrient is provided simultaneously, can improve H in foul gas
2s and NH
3removal efficiency.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention various inlet concentration purification ammonia schematic diagram.
Fig. 2 is that embodiment of the present invention various inlet flow purifies NH
3and H
2s schematic diagram.
The specific embodiment
The present invention is a kind of biological deodorizing filler that waste material is biofilter primary raw material of take, and by the consumer garbage compost 40%-45% of secondary fermentation 5-12 days, vinasse 30.5%-35.5%, surplus, is to add adhesive and humidizer in the material A that forms of egg shell again.
The present invention selects the consumer garbage compost of secondary fermentation 5-12 days, the aromaticity of this stage compost Humus material and degree of unsaturation increase, the biomembrane that a large amount of microorganisms that produce form covers filling surface, and when waste gas passes through biofilter, the pollutant in waste gas is degraded by microorganisms.Greatly improve filter tank purification efficiency.
Requirement according to biofilter to filler physicochemical property, the present invention is usingd the parameters such as bed stuffing height, filler particles particle diameter, pH, temperature, humidity as evaluation index, preparation technology.Packed height is 0.9-1.2m, and more than 60% filler particles diameter is less than 7mm, pH 7-8, and temperature is 35-40 ℃, humidity range is advisable in 50%-60% left and right.Owing to can producing acidic materials in degradation process, so add egg shell, the H producing in nitration reaction process
+while being accumulated to a certain degree, its main component CaCO
3under acid condition, dissolve, for nitrification provides basicity source.Increase buffer capacity.For guaranteeing that in reactor, nutrient is sufficient, vinasse content should be not less than 30.5% simultaneously.
Its inner microorganism of the consumer garbage compost of the secondary fermentation in filler (secondary fermentation 5-12 days) plays an important role to foul gas absorption degradation.Addition is too low can reduce the absorption degradation effect to foul gas, and addition is too high can increase biofilter pressure drop again, reduces the service life of biofilter.Therefore select the composting production percentage by weight 40%-45% in the stage of necessarily becoming thoroughly decomposed, optimized percentage is defined as 40.5%-42.5%.
After the consumer garbage compost weight ratio of the primary raw material secondary fermentation in filler is fixed, increase along with vinasse, egg shell weight ratio in filler, the empty bed time of staying extends, consider the factors such as pressure drop, bulk density and bulk density, the present invention selects vinasse weight ratio 30.5%-35.5%, and preferred proportion is 30.5%-33.5%.
Biological deodorizing filler preparation method of the present invention, step is as follows:
1) raw material is chosen and is processed:
A. choose 5-12 days compost samples of secondary fermentation.Send into ball milling in ball mill, levigate rear mistake 100 mesh standard sieves, the composting production after screening is standby.
B. vinasse organic acid substance is more, before use, must process.Vinasse are first done high-temperature process or airing before fermentation, then fresh grain stillage is added to the pulverized limestone of 1%-3% by fresh weight, and pH value is adjusted to 8-11.Fermentation is placed in the interior stabilisation of carrying out for 1-2 days of tank diameter.
C. egg shell pulverizes, and diameter is between 3-5mm.Save backup.
2) raw material proportioning:
By the consumer garbage compost of secondary fermentation (the secondary compost samples of 5-12 days) 40%-45%, vinasse 30.5%-35.5%, all the other are egg shell, and add adhesive and humidizer mixing, general control adhesive total amount is no more than 1/5 of material total amount, can play adhesive effect; Humidizer consumption is with respect to the 2%-7% of adhesive.
3) filler granulation and filling:
After filler material is mixed; with comminutor, make the spheric granules that diameter is 6mm-12mm, pack in the reactor of biofilter, loading height is 1-1.2m; in the surge chamber of bottom, filter tank, fill out the high quartz sand of paving 2-3cm, above put one deck air distribution plate gas uniform is passed in biofilter.
Be below specific embodiments of the invention
Embodiment 1:
The first step: the choosing of compost filler
Choose the secondary fermentation sample in 5-12 days compost stages, send into ball milling in ball mill, levigate rear mistake 100 mesh standard sieves, the composting production after screening is standby.
Domestic waste is sampling every day in compost composting process, by gained sample, by dry weight and distilled water volume, be that 1: 10 (W (g)/V (mL)) adds distilled water, centrifugal 20min under 4 ℃, 12000r/min after vibration 24h, supernatant is crossed the filter membrane of 0.45 μ m, and in gained filtrate, organic matter is DOM.50 times of filtrate dilutions is stand-by.
The excitation wavelength Ex=200-450nm of three-dimensional fluorescence spectrum scanning, emission wavelength Em=260-550nm, sweep speed is made as 1200nm/min.The compost sample (secondary fermentation 5-12 days) that the ratio of choosing class fulvic acid fluorescence intensity and each characteristic fluorescence peak total fluorescence intensity is 0.4238-0.6214.In three-dimensional fluorescence spectrum, class fulvic acid fluorescence intensity can Efficient Characterization compost maturity process with the ratio of each characteristic fluorescence peak total fluorescence intensity.Aromaticity and degree of unsaturation increase when its ratio compost Humus material when 0.3045-0.7616 is interval, desirable (the Li Yingjun of compost maturity degree, He little Song. Chicken Manure Compost water soluble organic substance conversion characteristic research [J]. environmental project journal .2010,4 (9): 2135-2140)
Second step: the fermentation process of vinasse
Vinasse are airing 48h before fermentation, and by the fresh weight of vinasse, adding weight is the pulverized limestone of 1%-3%, and pH value is adjusted to 8-11, and fermentation is placed in the interior stabilisation of carrying out for 2 days of tank diameter.
The 3rd step: the pretreatment of egg shell
Egg shell pulverizes, and diameter is between 3-5mm.Save backup.
The 4th step: mix
Three kinds of raw materials of consumer garbage compost, vinasse, egg shell of above-mentioned secondary fermentation 5-12 days are mixed with the ratio of each raw material weight percentage 42.5%, 33.5%, 15.5%, put into mixer and stir and evenly mix.
The 5th step: granulation
In the filler stirring, mix be no more than material gross weight 1/5 black mud charcoal as adhesive, consumption is that the imvite of black mud charcoal 5% is humidizer, comminutor is made the spheric granules that diameter is 6mm.
The performance indications of filler are: packed height 1.2m, loose bulk density 0.676g/cm
3, compacting heap volume density is 0.721g/cm
3, bulk density is 1.44g/cm
3, water absorption rate is 37.19%, sour molten rate is 35.22%.
Embodiment 2:
With the raw material of above-mentioned preparation, as bio-filter stuffing, be used for ammonia removal and hydrogen sulfide gas, respectively as shown in Figure 1 and Figure 2.Biological respinse filter operation 30d, by the detection to ammonia concentration at air inlet and gas outlet, under the various inlet amount and inlet gas concentration obtaining, the clearance of ammonia and hydrogen sulfide all remains on more than 91%.
Claims (9)
1. a biological deodorizing filler, is graininess, and Main Ingredients and Appearance includes by weight:
By consumer garbage compost 40%-45%, the vinasse 30.5%-35.5% of secondary fermentation, surplus is the material A that egg shell forms; Wherein, in vinasse, include by the pulverized limestone of fresh grain stillage weight 1%-3%;
Be no more than the adhesive of material A gross weight 1/5, and
Humidizer with respect to binder wt 2-7%.
2. biological deodorizing filler according to claim 1, wherein, biological deodorizing filler is the spheric granules of particle diameter 6-12mm.
3. biological deodorizing filler according to claim 1, wherein, humidizer consumption is 5% of adhesive.
4. the preparation method of biological deodorizing filler described in claim 1, key step is:
1) consumer garbage compost of secondary fermentation and egg shell are levigate;
2) in the vinasse after airing, add the pulverized limestone of fresh grain stillage weight 1%-3%, pH value is adjusted to 8-11, place stable;
3) consumer garbage compost of secondary fermentation, vinasse and egg shell are mixed and make material A, then add adhesive and humidizer granulation shape.
5. preparation method according to claim 4, wherein, in step 1, the consumer garbage compost of secondary fermentation refers to the secondary fermentation consumer garbage compost of 5-12 days.
6. preparation method according to claim 4, wherein, in step 3, adhesive total amount is no more than 1/5 of biological deodorizing filler total amount, and the addition of humidizer is the 2%-7% of binder wt.
7. preparation method according to claim 4, wherein, is to make with comminutor the spheric granules that diameter is 6-12mm in step 3.
8. the application of biological deodorizing filler described in claim 1, packs biological deodorizing filler in biofilter into, in the surge chamber of this bottom, biofilter, fills out and is covered with quartz sand, is provided with one deck air distribution plate gas uniform is passed in biofilter on quartz sand.
9. application according to claim 8, wherein, biological deodorizing filler loading height in biofilter is 1-1.2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210176893.6A CN102671536B (en) | 2012-05-31 | 2012-05-31 | Deodorization method taking waste as main raw material of biological filter packing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210176893.6A CN102671536B (en) | 2012-05-31 | 2012-05-31 | Deodorization method taking waste as main raw material of biological filter packing |
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| CN102671536B true CN102671536B (en) | 2014-04-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103657399A (en) * | 2012-09-06 | 2014-03-26 | 中国石油化工股份有限公司 | Preparation method of macromolecule activated carbon composite filler |
| CN109529601A (en) * | 2018-12-25 | 2019-03-29 | 巩义市欧洁源环保技术服务有限公司 | A method of using biofilter integrated treatment foul gas |
| CN111151120B (en) * | 2020-01-14 | 2020-12-08 | 西原环保工程(上海)有限公司 | High-efficiency biological deodorization method and device |
| CN114733340A (en) * | 2022-04-19 | 2022-07-12 | 深圳盈和环境物联科技有限公司 | Purification system and domestication method for malodorous gas biological deodorization microorganisms |
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| CN1254173C (en) * | 2003-10-22 | 2006-05-03 | 中国农业大学 | Earthworm excrement deodorizing method and apparatus |
| CN100429182C (en) * | 2005-09-12 | 2008-10-29 | 中国科学院生态环境研究中心 | Organic solid waste composting and biological deodorizing system and its operation method |
| CN101703888B (en) * | 2009-11-30 | 2012-06-20 | 浙江大学 | Biochemical waste gas deodorizing purification bed and biological deodorizing method |
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Inventor after: Zhu Chaowei Inventor after: Li Mingxiao Inventor after: Hou Jiaqi Inventor after: Jia Xuan Inventor after: Xi Beidou Inventor after: Wei Zimin Inventor after: Li Yingjun Inventor after: Lei Hongjun Inventor before: Li Mingxiao Inventor before: Hou Jiaqi Inventor before: Xi Beidou Inventor before: Wei Zimin Inventor before: Li Yingjun Inventor before: Lei Hongjun |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI MINGXIAO HOU JIAQI XI BEIDOU WEI ZIMIN LI YINGJUN LEI HONGJUN TO: ZHU CHAOWEI LI MINGXIAO HOU JIAQI JIA XUAN XI BEIDOU WEI ZIMIN LI YINGJUN LEI HONGJUN |
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