CN104801285A - Preparation method of mycete and agricultural and forestry waste mixed bio-adsorbent - Google Patents
Preparation method of mycete and agricultural and forestry waste mixed bio-adsorbent Download PDFInfo
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- CN104801285A CN104801285A CN201510226370.1A CN201510226370A CN104801285A CN 104801285 A CN104801285 A CN 104801285A CN 201510226370 A CN201510226370 A CN 201510226370A CN 104801285 A CN104801285 A CN 104801285A
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Abstract
The invention provides a preparation method of a mycete and agricultural and forestry waste mixed bio-adsorbent, and relates to a preparation method of an adsorbent. The preparation method aims at solving the problems that in the prior art, the cost of the adsorbent for processing heavy metal is high, and the secondary pollution can be easily caused. The preparation method comprises the following steps that agricultural and forestry wastes are dried, and then are smashed and sieved; then, the sieved agricultural and forestry wastes and water are mixed according to a mass ratio being 1:1; next, mycotic spores are inoculated; then, the fermentation cultivation is carried out; the mycete and agricultural and forestry waste mixed bio-adsorbent is obtained, and the preparation is completed. The preparation method has the advantages that green and environment-friendly effects are achieved, the industrial production is easy, and meanwhile, the adsorbing quantity is great. The preparation method is applied to the field of the adsorbent.
Description
Technical field
The present invention relates to a kind of preparation method of adsorbent.
Background technology
For the method that the removal of heavy metal is traditional: have chemical settling, redox, ion-exchange, electrochemical treatments, filtration, counter-infiltration, solvent extraction and evaporation to reclaim.The method of various physics, chemistry is also the transfer of heavy metal ion, concentrated or existence form change, and heavy metal can not disappear, and total amount can not reduce, and this is that heavy metal wastewater thereby is different from other waste water part.In those early years, ion-exchange application is more extensive, but because resin cost is higher, there is certain restriction to original water quality, as useless Organic substance in water and oxide can make efficiency lost resin etc., so, the thing followed is that chemical method, electrolysis etc. engender and be applied, and the weak point of chemical method is that floor space is comparatively large, produces sludge containing heavy metal, mud does not obtain appropriate process, so there is secondary pollution problem.The weak point of electrolysis is that power consumption is high, and when content of beary metal is higher, result of use is undesirable, and electrolysis is usually used in the recovery of precious metal, and for the not high metal of recovery value, such as copper, that is just lost more than gain.Environmentalist proposes likely to utilize bioanalysis removal heavy metal very early, and has carried out years of researches.
Agriculture and forestry organic waste material adsorbent is as the byproduct produced in agricultural and production of forestry and process, with its enormous amount, there is renewable, the plurality of advantages such as the regeneration period is short, biodegradable, environmental friendliness, become important biomass resource, mainly contain bark, shell, sawdust, stalk, straw, bagasse etc.Agriculture and forestry organic waste material is used for the metal ion in adsorbent solution, while process waste water, achieves the resource of agriculture and forestry organic waste material.Can, as adsorbent, be why that physically porosity is higher due to it on the one hand, specific area be comparatively large, can with metal ion generation physical absorption; On the other hand, because containing more active material in some agriculture and forestry organic waste material, as-COOH ,-OH ,-NH2 etc., these materials can pass through the mode such as ion-exchange, chelating adsorbing metal ions.Although agriculture and forestry organic waste material has certain heavy metal ion adsorbed ability, because active component content is less, adsorption capacity is undesirable.Therefore, some scholars expect with soda acid or formaldehyde etc. by its modification then, but modified agriculture and forestry organic waste material pH is lower or higher, after absorption, can produce new waste water again, not reach the object purified water, on the contrary for water treatment adds burden.So how agriculture and forestry organic waste material is used fully the hot issue become in order to biological treatment waste water circle.Mold adsorbent process heavy metal has the following advantages compared with other similar technique as a new technology: 1. at low concentrations, and heavy metal can optionally be removed, and also can carry out selective removal to special metal; 2. removal efficiency is high and some precious metal can reach recycling; 3. the wide material sources of bacterial classification, almost from any material that carries disease germs, particularly contaminated by heavy metalsly, can carry out employing and the screening of bacterial classification.But said method rests on laboratory stage all the time, slowly fail to realize industrialization, wherein maximum drawback is exactly that fungal biomass sorbent is prepared expensive, loaded down with trivial details and yields poorly.
Summary of the invention
The problem that the adsorbent cost that the object of the invention is to solve existing process heavy metal is high, easily cause secondary pollution, and the preparation method of a kind of mould provided and agriculture and forestry organic waste material mixed biologic adsorbent.
The preparation method of a kind of mould of the present invention and agriculture and forestry organic waste material mixed biologic adsorbent is prepared according to following steps:
By agriculture and forestry organic waste material dry 20 ~ 26h under the condition of 58 ~ 62 DEG C, then smash and cross 60 ~ 300 mesh sieves, again with water in mass ratio for 1:(0.9 ~ 1.1) ratio mix, then mycotic spore is inoculated, then 2 ~ 4d is cultivated at temperature 28 ~ 32 DEG C of condition bottom fermentations, obtain mould and agriculture and forestry organic waste material mixed biologic adsorbent, namely complete.
Mould of the present invention and agriculture and forestry organic waste material mixed biologic adsorbent can by the effects such as metabolism, ion-exchange or ligand complex Adsorption of Heavy Metal Ions from the aqueous solution, this method is than the agriculture and forestry organic waste material more environmental protection of chemical modification in the past, turn avoid the costliness of culture medium and the harshness of condition of culture when fungi adsorbent is prepared separately simultaneously, be easier to realize industrialization, agriculture and forestry organic waste material inherently has the effect of absorption heavy metal ions in wastewater, simultaneously as the carrier of mould, necessary energy can be provided for the metabolism of mould.Mould can grow on agriculture and forestry organic waste material, and without the need to adding other nutrient.The spore of mould aerial mycelium and generation thereof has very strong heavy metal adsorption.
Detailed description of the invention
Detailed description of the invention one: the preparation method of a kind of mould of present embodiment and agriculture and forestry organic waste material mixed biologic adsorbent is prepared according to following steps:
By agriculture and forestry organic waste material dry 20 ~ 26h under the condition of 58 ~ 62 DEG C, then smash and cross 60 ~ 300 mesh sieves, again with water in mass ratio for 1:(0.9 ~ 1.1) ratio mix, then mycotic spore is inoculated, then 2 ~ 4d is cultivated at temperature 28 ~ 32 DEG C of condition bottom fermentations, obtain mould and agriculture and forestry organic waste material mixed biologic adsorbent, namely complete.
Present embodiment mould and agriculture and forestry organic waste material mixed biologic adsorbent can by the effects such as metabolism, ion-exchange or ligand complex Adsorption of Heavy Metal Ions from the aqueous solution, this method is than the agriculture and forestry organic waste material more environmental protection of chemical modification in the past, turn avoid the costliness of culture medium and the harshness of condition of culture when fungi adsorbent is prepared separately simultaneously, be easier to realize the effect that industrialization agriculture and forestry organic waste material inherently has absorption heavy metal ions in wastewater, simultaneously as the carrier of mould, necessary energy can be provided for the metabolism of mould.Mould can grow on agriculture and forestry organic waste material, and without the need to adding other nutrient.The spore of mould aerial mycelium and generation thereof has very strong heavy metal adsorption.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: described agriculture and forestry organic waste material is straw or maize straw.Other are identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two are the aspergillus niger (Aspergillus niger) of bacterial strain numbers 98003 unlike: described mould.Other are identical with detailed description of the invention one or two.
Wherein the aspergillus niger of bacterial strain numbers 98003 in present embodiment, buys from Harbin Chun Rui Science and Technology Development Co., Ltd..
Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three unlike: the inoculum concentration of described mycotic spore is (7.5 ~ 8.5) × 10
6cfu.Other steps are identical with one of detailed description of the invention one to three with parameter.
Detailed description of the invention five: one of present embodiment and detailed description of the invention one to four unlike: the inoculum concentration of described mycotic spore is 8 × 10
6cfu.Other steps are identical with one of detailed description of the invention one to four with parameter.
Detailed description of the invention six: one of present embodiment and detailed description of the invention one to five unlike: the described condition bottom fermentation being 30 DEG C in temperature is cultivated.Other steps are identical with one of detailed description of the invention one to five with parameter.
Detailed description of the invention seven: one of present embodiment and detailed description of the invention one to six unlike: the time of described fermented and cultured is 3d.Other steps are identical with one of detailed description of the invention one to six with parameter.
By following verification experimental verification beneficial effect of the present invention:
Test 1, this tests the preparation method of a kind of mould and agriculture and forestry organic waste material mixed biologic adsorbent, it is characterized in that preparation method is prepared according to following steps:
By straw dry 24h under the condition of 60 DEG C, then smashing and cross 60 mesh sieves, then with water in mass ratio for the ratio of 1:1 mixes, is then 8 × 10 by inoculum concentration
6cfu inoculates mycotic spore, then cultivates 3d at temperature 30 DEG C of condition bottom fermentations, obtains mould and dry rice straw mixed biologic adsorbent, namely complete.
Then the mould and the dry rice straw mixed biologic adsorbent 0.1g that get this test preparation add in the copper solution 100ml containing 30mg/L, carry out adsorption experiment, it is 30 DEG C in temperature, rotating speed is under the condition of 100rmp, after absorption 2h, survey residual copper content in solution, the adsorbance obtaining mold fermentation dry rice straw is 7.98mg/g.
Get the dry rice straw of 0.1g without fermentable, at identical adsorption conditions, under initial concentration, the adsorbance of dry rice straw is 1.94mg/g.
The mould of this test and agriculture and forestry organic waste material mixed biologic adsorbent can by the effects such as metabolism, ion-exchange or ligand complex Adsorption of Heavy Metal Ions from the aqueous solution, this method is than the agriculture and forestry organic waste material more environmental protection of chemical modification in the past, turn avoid the costliness of culture medium and the harshness of condition of culture when fungi adsorbent is prepared separately simultaneously, be easier to realize industrialization, agriculture and forestry organic waste material inherently has the effect of absorption heavy metal ions in wastewater, simultaneously as the carrier of mould, necessary energy can be provided for the metabolism of mould.Mould can grow on agriculture and forestry organic waste material, and without the need to adding other nutrient.The spore of mould aerial mycelium and generation thereof has very strong heavy metal adsorption.
This test mould is the aspergillus niger (Aspergillus niger) of bacterial strain numbers 98003, buys from Harbin Chun Rui Science and Technology Development Co., Ltd..
Claims (8)
1. a preparation method for mould and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that preparation method is prepared according to following steps:
By agriculture and forestry organic waste material dry 20 ~ 26h under the condition of 58 ~ 62 DEG C, then smash and cross 60 ~ 300 mesh sieves, again with water in mass ratio for 1:(0.9 ~ 1.1) ratio mix, then mycotic spore is inoculated, then 2 ~ 4d is cultivated at temperature 28 ~ 32 DEG C of condition bottom fermentations, obtain mould and agriculture and forestry organic waste material mixed biologic adsorbent, namely complete.
2. the preparation method of a kind of mould according to claim 1 and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that described by agriculture and forestry organic waste material dry 24h under the condition of 60 DEG C.
3. the preparation method of a kind of mould according to claim 1 and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that described agriculture and forestry organic waste material is straw or maize straw.
4. the preparation method of a kind of mould according to claim 1 and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that described mould is the aspergillus niger of bacterial strain numbers 98003.
5. the preparation method of a kind of mould according to claim 1 and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that the inoculum concentration of described mycotic spore is for (7.5 ~ 8.5) × 10
6cfu.
6. the preparation method of a kind of mould according to claim 1 and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that the inoculum concentration of described mycotic spore is 8 × 10
6cfu.
7. the preparation method of a kind of mould according to claim 1 and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that the described condition bottom fermentation being 30 DEG C in temperature is cultivated.
8. the preparation method of a kind of mould according to claim 1 and agriculture and forestry organic waste material mixed biologic adsorbent, is characterized in that the time of described fermented and cultured is 3d.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105561932A (en) * | 2015-12-11 | 2016-05-11 | 黑龙江省科学院高技术研究院 | Formula and preparation method of composite fungus straw bio-adsorbent |
| CN108636373A (en) * | 2018-06-01 | 2018-10-12 | 太原理工大学 | A kind of fungi is modified the preparation method of biogas residue heavy metal absorbent |
| CN108745294A (en) * | 2018-06-01 | 2018-11-06 | 太原理工大学 | A kind of method that fungi-kitchen garbage mixing solid phase fermentation prepares heavy metal absorbent |
| CN111330551A (en) * | 2020-04-10 | 2020-06-26 | 朱晴 | Composite material for treating heavy metal ions in wastewater and preparation method thereof |
| CN112427018A (en) * | 2020-11-03 | 2021-03-02 | 常州市和润环保科技有限公司 | Heavy metal wastewater biomass adsorbent and preparation method thereof |
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| CN102847516A (en) * | 2012-08-24 | 2013-01-02 | 嘉兴学院 | Biological modified straw adsorbent, and reparation method and application thereof |
| CN104084170A (en) * | 2014-07-30 | 2014-10-08 | 青岛科维源环保技术有限公司 | Preparation method of bacteria bead capable of absorbing heavy metals |
| CN104209098A (en) * | 2014-08-27 | 2014-12-17 | 镇江华域环保设备制造有限公司 | Heavy metal adsorbent used in sewage treatment and application of heavy metal adsorbent |
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| CN101234335A (en) * | 2007-11-08 | 2008-08-06 | 浙江大学 | Method and use for preparing natural adsorption agent by zymolysis |
| CN102091599A (en) * | 2010-12-27 | 2011-06-15 | 中国农业大学 | Biomass adsorbent and preparation method thereof |
| CN102794157A (en) * | 2011-05-25 | 2012-11-28 | 周鑫 | Composite medium capable of adsorbing heavy metals |
| CN102847516A (en) * | 2012-08-24 | 2013-01-02 | 嘉兴学院 | Biological modified straw adsorbent, and reparation method and application thereof |
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| CN104084170A (en) * | 2014-07-30 | 2014-10-08 | 青岛科维源环保技术有限公司 | Preparation method of bacteria bead capable of absorbing heavy metals |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105561932A (en) * | 2015-12-11 | 2016-05-11 | 黑龙江省科学院高技术研究院 | Formula and preparation method of composite fungus straw bio-adsorbent |
| CN108636373A (en) * | 2018-06-01 | 2018-10-12 | 太原理工大学 | A kind of fungi is modified the preparation method of biogas residue heavy metal absorbent |
| CN108745294A (en) * | 2018-06-01 | 2018-11-06 | 太原理工大学 | A kind of method that fungi-kitchen garbage mixing solid phase fermentation prepares heavy metal absorbent |
| CN111330551A (en) * | 2020-04-10 | 2020-06-26 | 朱晴 | Composite material for treating heavy metal ions in wastewater and preparation method thereof |
| CN111330551B (en) * | 2020-04-10 | 2020-12-15 | 杭州鼎友五金机械制造有限公司 | Composite material for treating heavy metal ions in wastewater and preparation method thereof |
| CN112427018A (en) * | 2020-11-03 | 2021-03-02 | 常州市和润环保科技有限公司 | Heavy metal wastewater biomass adsorbent and preparation method thereof |
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