CN106987252A - A kind of mixed type soil conditioner and preparation method thereof - Google Patents
A kind of mixed type soil conditioner and preparation method thereof Download PDFInfo
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- CN106987252A CN106987252A CN201710149766.XA CN201710149766A CN106987252A CN 106987252 A CN106987252 A CN 106987252A CN 201710149766 A CN201710149766 A CN 201710149766A CN 106987252 A CN106987252 A CN 106987252A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/06—Calcium compounds, e.g. lime
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K2101/00—Agricultural use
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Abstract
The invention belongs to soil-conditioning material field, specifically there is provided a kind of mixed type soil conditioner and preparation method thereof.A kind of mixed type soil conditioner, by weight, including 20 25 parts of manioc waste, 58 parts of cavings, 0.3 0.5 parts of selenium powder, 15 25 parts of oyster shell whiting, 15 25 parts of calcined shell powder, 10 12 parts of dewatered sludge, 10 20 parts of bentonite, 8 12 parts of sepiolite, 13 parts of ferric manganese ore powder.This soil conditioner formulations can adjust the heavy metal in the pH value of soil, passivation soil, improves iron, the nutrition supply of selenium and other trace elements in soil granular structure, increase soil, improves the yield and quality of crops.
Description
Technical field
The invention belongs to soil-conditioning material field, specifically there is provided a kind of mixed type soil conditioner and its preparation side
Method.
Background technology
Carry out by scientist extensively being made in in-situ chemical fixation repairing research in ALFISOL IN CENTRAL heavy-metal contaminated soil at present
Passivator mainly has clay mineral (bentonite, kaolin, sepiolite, zeolite etc.), phosphoric acid salt (hydroxyapatite, phosphorus
Miberal powder, phosphoric acid, phosphate fertilizer and bone black etc.), industry byproduct (red mud, flying dust, ardealite etc.), metal oxide (ferriferous oxide, manganese
Oxide, aluminum oxide etc.), organic matter (organic compost, fowl and animal excrement etc.) and microbial material etc., with viscous in these passivator
Native mineral, phosphoric acid salt, the inorganic passivation renovation agent based on industry byproduct heavy-metal contaminated soil be passivated in repairing should
With most extensive.
But this kind of passivation usual heavy metal of renovation agent has certain selectivity, for different heavy metals, passivation
The use of renovation agent has certain specific aim and selectivity, and such as mobility of the arsenic in soil is mainly by iron, aluminum oxide control
The fixation of arsenic uses oxides-containing iron mostly in system, particularly ferriferous oxide, soil.In addition, these passivation renovation agents are in control
Also a large amount of inevitably side effects are generated while crop Accumulation of heavy metals, its major side effects is：Itself is containing certain
The heavy metal of amount, a large amount of administrations can cause secondary pollution (such as phosphate fertilizer, organic fertilizer)；And excessively apply chemical passivation renovation agent
Influence to soil pH is very big, and notable harmful effect (such as lime material and clay are produced to the other physicochemical characters of soil and structure
Class is passivated renovation agent), cause the shortage of soil micronutrient element and significantly affect absorption to it；Consumption is excessive, waste compared with
Greatly, there is body eutrophication risk (phosphate), aftereffect hold time it is short, influence it persistently to apply；Iron sulfate is being formed
Arsenic can cause soil acidification, easily-activated cadmium, lead, copper simultaneously in the efficient fixing soil of amorphous Fe oxides；Due to passivating process simultaneously
Do not change total metalses, effective form of heavy metal temporarily reduced simply by various act on, when environmental condition (such as pH,
Competing ions, oxidation-reduction potential etc.) when changing, the heavy metal being temporarily passivated will be reactivated can be with for biology
, there is potential secondary ecological risk (alkalescence such as lime modifying agent), directly affect continuing for passivation renovation agent in the form utilized
Use.In addition, containing micro member in abundant organic matter, N P and K and calcium, iron, magnesium, sodium, manganese etc. in the organic matter such as fowl and animal excrement
Element, with the effect for supplementing and balancing soil nutrient, chronic administration can improve soil physico-chemical property, increase soil fertility, change
Effect is more protruded in terms of good soil environment；Disputed on however, organic matter also has some in heavy metal reparation；Some research tables
Bright, the organic matter such as organic compost, brutish excrement can significantly reduce the biological effectiveness content of arsenic in contaminated soil, cadmium, lead etc.,
Plant absorption is reduced, and plant growth can be remarkably promoted；Other researchs show, because containing in the organic substance of fowl and animal excrement etc.
Various active component and functional group, can occur the effect such as complexing with heavy metal, and the especially presence of SOM is often right
Heavy metal in soil has certain activation, may improve the validity of heavy metal-polluted soil, and causes weight in crop body
Tenor increase is even exceeded, and then threatens health by food chain.
In terms of research method, research is in the majority with short-term chemical test and washing tests, and plot experiment and field examination
Test relative shortage；Also lack necessary pass for the stability and Impacts on ecology and environment for applying the recovery dynatron effect for being passivated renovation agent
Note.For combined contamination soil, single passivation renovation agent is extremely difficult to repair the standard of application, two or more
Passivating material is administered in combination to be shown in all many-sides such as passivation effect, the persistence of passivation, stability and reduction adverse effects
Preferable advantage.
At present, most research work still lack still in the laboratory research stage, in terms of practical engineering application, it is necessary to from
Practical application angle is set out, and carries out the pilot scale and demonstration project research of engineer applied, and to its repairing effect and its ecological environment
Benefit is tracked evaluation, sets up relevant contaminated soil in-situ chemical and fixes recovery project implementation technical specification.
In summary, soil in-situ passivating technique complies with this development trend and current demand, especially for current China
For the farmland of the middle low heavy metal pollution largely existed, it can not only be carried out on the premise of agricultural product security is ensured normal
Agricultural production, can also substantially reduce rehabilitation cost, and controlling for heavy-metal contaminated soil can be preferably met from cost and on the time
Reason is required, with preferable application prospect.In general, good soil-repairing agent can not only significantly reduce heavy metal in soil
Biological effectiveness, moreover it is possible to improved soil performance, increase soil fertility, make the directive breeding of soil quality towards being conducive to agricultural
The benign cycle direction of production sustainable development is developed.But so far, real move towards Field information by passivator from laboratory
Exceeded heavy metals in farmland pollution amelioration and improvement technology it is still rare, be in progress in terms of modifying agent industrialization also very slow.
In actual application, it is contemplated that different types of passivation renovation agent is used in combination, and is directed to finding suitable proportioning,
Make up for each other's deficiencies and learn from each other, improve passivation effect, economic benefit and ecological benefits that passivation renovation agent is used in combination are performed to maximum,
It is the direction of following passivation repairing research, with vast potential for future development.Joint soil passivator can improve single passivation and repair
The effect and shortening passivation time of agent, different types of chemical passivation renovation agent suitably proportioning is chemical passivation recovery technique hair
Need key problems-solving in exhibition badly.
The content of the invention
It is an object of the invention to provide a kind of mixed type soil conditioner and preparation method thereof, Different Soil is met
Improvement demand.
Technical scheme：A kind of mixed type soil conditioner, by weight, including 20-25 parts of manioc waste, cavings
5-8 parts, 0.3-0.5 parts of selenium powder, 15-25 parts of oyster shell whiting, 15-25 parts of calcined shell powder, 10-12 parts of dewatered sludge, bentonite 10-
20 parts, 8-12 parts of sepiolite, 1-3 parts of ferric manganese ore powder.
It is preferred that, the calcined shell powder is quenching, the calcining shellfish of gained after grinding after 800-1200 DEG C of calcining 4-8h
Shell powder.Contain substantial amounts of calcium in shell, be simply polished into assignment system in fertilizer, it is difficult to discharge, cause crop to absorb
Utilization rate is not high；And there is substantial amounts of calcium activated, activated silica and active selenium in the oyster shell whiting after high-temperature calcination, it is easier to by crop
Absorb.After testing, the active calcium content after calcining is up to 51%, and active silicone content is up to 5.2%, and active Se content reaches
1.2%, active component is more easy to absorb.
The present invention also provides a kind of quenching device for calcined shell powder quenching, including by feed well, quenching area and goes out
Expect to be also equipped with agitating device on the U-shaped treatment box of passage composition, and the hopper with lifting rod, the hopper side wall；It is described
Feed well is provided with inlet control valve, and the tapping channel upper end is provided with case lid；Above U-shaped treatment box quenching area provided with pond,
Lower section is provided with water pipe；The agitating device includes driving plate and the stirring rod in driving plate, and the stirring rod is hollow
Coolant is filled with structure, stirring rod；The case lid is made up of two sub- case lids, and described sub- case lid one end is cut with scissors with tapping channel
Connect, the other end is provided with the groove formation through hole on groove, two sub- case lids, the size of the through hole and the lifting rod matches
's.
It is preferred that, the manioc waste is the product of alcoholic fermentation after cassava is removed the peel.The cassava is removed the peel using High Pressure Gun.Wood
Potato is main to concentrate on cassava skin because the heavy metal in soil and exogenous hormone are influenceed by cassava is physiological in planting process,
Especially heavy metal Accumulation and distribution on skin is most, and conventional flushing is difficult to the heavy metal of aggregation to understand completely, such as artificial clear
Wash, waste time and energy.RW promotees rotten agent and mainly includes bacillus subtilis, aspergillus oryzae, reaches heating, deodorization, elimination pest and disease damage, miscellaneous
The effect of grass seed and enrichment nutrient.
Accordingly, the present invention also provides a kind of preparation method for preparing mixed type soil conditioner, including following several steps
Suddenly：
Step a, pretreatment：Mixed after manioc waste is dehydrated with dewatered sludge, add cavings, obtain pretreatment mixing
Thing；
Step b, trough type fermentation：RW is added in mixed material obtained by step a and promotees rotten agent, aerobic fermentation is carried out；
Step c, compound：Material after aerobic fermentation is added into dry manioc waste, bacillus subtilis and shell by weight
Uniformly mixed after powder, calcined shell powder, selenium powder, bentonite, sepiolite, ferric manganese ore powder；
Step d, bar buttress formula fermentation：Material after compound is subjected to bar buttress formula compost fermentation；
Step e, ripening and packaging：Fermentation materials obtained by step d are subjected to cooling ripening, after pulverizing and sieving
Packaging.
It is preferred that, in the step a, manioc waste be dehydrated after with the mass ratio of dewatered sludge be 1.5-2:1；Meanwhile,
Mixture moisture is controlled below 65%.
It is preferred that, in the step b, time of aerobic fermentation is 10-15 days, and during aerobic fermentation early stage 5-7 days, every 24 is small
When turning and throwing once；When material moisture is down to less than 50%, per 8-12 hours turning and throwing onces, fermentation temperature was controlled below 65 DEG C.
It is preferred that, in the step c, the addition of the manioc waste is the 10-15% of material gross weight.
It is preferred that, in the step d, material moisture should be controlled in 35-40% before bar buttress formula fermentation, and the time of fermentation is 3-
5 days, fermentation temperature was controlled below 60 DEG C, and every turning in 2 hours is once.
Advantage of the present invention：1st, whole soil conditioner formula can adjust the heavy metal in the pH value of soil, passivation soil, change
Iron, the nutrition supply of selenium and other trace elements in kind soil granular structure, increase soil, improve the yield and quality of crops.
2nd, oyster shell whiting is combined with the oyster shell whiting after calcining, is more beneficial for improving soil granular structure, is conducive to crop to work
The elements such as property calcium, activated silica and selenium are absorbed.
3rd, content of beary metal is substantially reduced in the manioc waste raw material after giant rinses cassava skin, is conducive to improving
Fertilized soil soil property, will not aggravate heavy metal pollution, active ingredient in organic fertilizer is more conducive to crop absorption；
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is another use state structural representation of the invention；Drawing reference numerals of the Fig. 1 into Fig. 2 be：1- feed wells,
2- quenchings area, 3- tapping channels, 4-U type treatment boxes, 5- lifting rods, 6- hoppers, 7- agitating devices, 71- driving plates, 72- stirrings
Rod, 8- inlet control valves, 9- case lids, 91- case lids, 10- ponds, 11- water pipes, 12- connecting tubes, 13- heat-treatment furnaces, 15- connects
Fishplate bar, 16- jacks, 17- grooves, 18- through holes.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.
Embodiment 1
As shown in Fig. 1 to 2, a kind of quenching device of calcined shell powder quenching, including by feed well 1, quenching area 2 and go out
Expect to be also equipped with agitating device on the U-shaped treatment box 4 that passage 3 is constituted, and the hopper 6 with lifting rod 5, the side wall of hopper 6
7；The feed well 1 is provided with inlet control valve 8, and the upper end of tapping channel 3 is provided with case lid 9；In the U-shaped quenching area 2 for the treatment of box 4
Side is provided with water pipe 11 provided with pond 10, lower section.The lifting rod 5 is provided with connecting plate 15, the connecting plate 15 away from the one end of hopper 6
It is provided with jack 16.The agitating device 7 includes driving plate 71 and the stirring rod 72 in driving plate 71, the stirring rod
72 be that coolant is filled with hollow structure, stirring rod 72；The case lid 9 is made up of two sub- case lids 91, the sub- case lid 91
One end is hinged with tapping channel 3, and the other end is provided with the groove formation through hole 18 on groove 17, two sub- case lids 91, the through hole 18
Match with the size of the lifting rod 5.
The feed well 1 is connected by connecting tube 12 with heat-treatment furnace 13.The angle of feed well 1 and horizontal plane is 60 °.
The surrounding of U-shaped treatment box 4 is contacted with soil.I.e. whole device can be located in soil layer, according to terrain construction, saved into
This, meanwhile, be conducive to material to be discharged from heat-treatment furnace 13, improve cooling effectiveness.
Embodiment 2
A kind of mixed type soil conditioner, by weight, including 20 parts of manioc waste, 5 parts of cavings, 0.5 part of selenium powder, oyster shell whiting
15 parts, 25 parts of calcined shell powder, 10 parts of dewatered sludge, 15 parts of bentonite, 8 parts of sepiolite, 1.5 parts of ferric manganese ore powder.Wherein, it is wooden
Potato slag is the cassava processing waste removed the peel by giant；Calcined shell powder is after 800 DEG C of calcining 8h, to be quenched using above-mentioned
Calcined shell powder after device for cooling quenching obtained by grinding.The preparation method of the selenium-enriched high-calcium organic fertilizer, comprises the following steps：
Step a, pretreatment：With dewatered sludge in mass ratio 1.5 after manioc waste is dehydrated:1 mixing, adds cavings,
Control moisture below 65%, obtain preconditioned mixture.
Step b, trough type fermentation：RW is added in mixed material obtained by step a and promotees rotten agent, aerobic fermentation is carried out 12 days, it is good
6 days before aerobe fermentation, every 24 hours turning and throwing onces；When material moisture is down to less than 50%, every 12 hours turning and throwing onces, fermentation temperature
Control is below 65 DEG C.
Step c, compound：Material after aerobic fermentation is added into dry manioc waste, bacillus subtilis and shell by weight
Uniformly mixed after powder, calcined shell powder, selenium powder, bentonite, sepiolite, ferric manganese ore powder；The addition of the manioc waste is thing
Expect the 10% of weight.
Step d, bar buttress formula fermentation：Moisture control after compound is subjected to bar buttress formula compost fermentation 3 days in 35% material, hair
Ferment temperature control is below 60 DEG C, and every turning in 2 hours is once.
Step e, ripening and packaging：Fermentation materials obtained by step d are subjected to cooling ripening, after pulverizing and sieving
Packaging.
This soil conditioner has good opsonic action, as can be seen from Table 1, pass through paddy fields in south china acid soil pH value
Potted plant simulated experiment, is compared with a control, and using this soil conditioner paddy fields in south china acid soil pH value can be made to rise 0.4 list
Position, soil activation acid content declines 9.8%, and effective cadmium content have dropped 58.94%, and illustrating can be effective using this soil conditioner
Sweetening of the soil active acid, the available Cd in passivation soil reduces the biological effectiveness of cadmium, reduces absorption of the crop to cadmium.
This soil conditioner is too high to southern calacareous soil, saline-alkali soil soil pH simultaneously a preferable opsonic action, and table 1 can be with
Find out, by potted plant simulated experiment, be compared with a control, this soil conditioner is applied on calacareous soil, saline-alkali soil
Soil pH can be made to decline 0.23 and 0.25 unit respectively, the effective cadmium content of soil reduces 50.94% and 22.64% respectively.
Table 1 applies influence of the soil conditioner to rice field acid soil pH
Note：Alphabet is marked to show Duncan the result of multiple comparisons, mark lowercase letter indication difference significantly (p ＜ in table
0.05), appearing below alphabetical form has identical meaning.
Embodiment 3
Applied using the soil conditioner prepared by embodiment 2 on the rice terrace of Jinchengjiang District：Compared with the control, using soil
Earth conditioner effectively raises the yield of paddy rice, table 2 it can be seen that being compared with a control using this conditioner, Plant Height of Rice,
Spike length, grain number per spike, empty flat grain number difference less, the number of productive ear of paddy rice are improved using soil conditioner, in growth period duration of rice
Paddy rice resistance is improved, the yield that soil conditioner (200 kgs/acre) improves paddy rice compared with control group is applied through surveying production,
Lifting amplitude is 16.2%.
Influence of the soil conditioner of table 2 to yield of brown rice
Embodiment 4
A kind of mixed type soil conditioner, by weight, including 18 parts of manioc waste, 6 parts of cavings, 0.35 part of selenium powder, shell
18.5 parts of powder, 18.5 parts of calcined shell powder, 7.15 parts of dewatered sludge, 20 parts of bentonite, 9 parts of sepiolite, ferric manganese ore powder 2.5
Part.Wherein, manioc waste is the cassava processing waste removed the peel by giant；Calcined shell powder is through 1000 DEG C of calcining 6h
Afterwards, using after above-mentioned quenching device quenching grinding obtained by, calcined shell powder.The preparation method of the selenium-enriched high-calcium organic fertilizer, bag
Include following steps：
Step a, pretreatment：With dewatered sludge in mass ratio 2 after manioc waste is dehydrated:1 mixing, adds cavings, control
Moisture processed obtains preconditioned mixture below 65%.
Step b, trough type fermentation：RW is added in mixed material obtained by step a and promotees rotten agent, aerobic fermentation is carried out 10 days, it is good
5 days before aerobe fermentation, every 24 hours turning and throwing onces；When material moisture is down to less than 50%, every 10 hours turning and throwing onces, fermentation temperature
Control is below 65 DEG C.
Step c, compound：Material after aerobic fermentation is added into dry manioc waste, bacillus subtilis and shell by weight
Uniformly mixed after powder, calcined shell powder, selenium powder, bentonite, sepiolite, ferric manganese ore powder；The addition of the manioc waste is thing
Expect the 15% of weight.
Step d, bar buttress formula fermentation：Moisture control after compound is subjected to bar buttress formula compost fermentation 5 days in 35% material, hair
Ferment temperature control is below 60 DEG C, and every turning in 2 hours is once.
Step e, ripening and packaging：Fermentation materials obtained by step d are subjected to cooling ripening, after pulverizing and sieving
Packaging.
This soil conditioner has significant effect to reduction Cd concentration of brown rice, raising rice Se content, through in Guangxi Hechi
City Jinchengjiang District, Guilin City Yongfu county, Guilin City Lingchuan County Jiu Wu towns, Laibin City Wuxuan town Er Tang towns, Laibin City Xingbin District five
Applied on the paddy rice on ground such as Guan Zhen, Wuming area of Nanning City Luo Bo towns, Nanning City Longan County Yan Jiang towns, as a result as shown in table 3：Using
Soil conditioner processing respectively Cd concentration of brown rice decline 39.13%, 57.89%, 61.99%, 56.01%, 22.20%,
62.20%th, 79.78%；Rice Se content has enhanced 222.55% respectively, 401.75%, 191.03%, 128.77%,
595.57%th, 269.08%, 417.03%.
The soil conditioner of table 3 is to reducing the influence of Cd concentration of brown rice
It should be understood that these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
After the content of the invention lectured has been read, those skilled in the art can various modifications may be made or changes to the present invention, these
The equivalent form of value equally falls within the application appended claims limited range.
Claims (10)
1. a kind of mixed type soil conditioner, by weight, including 20-25 parts of manioc waste, 5-8 parts of cavings, selenium powder 0.3-0.5
Part, 15-25 parts of oyster shell whiting, 15-25 parts of calcined shell powder, 10-12 parts of dewatered sludge, 10-20 parts of bentonite, sepiolite 8-12
Part, 1-3 parts of ferric manganese ore powder.
2. soil conditioner as claimed in claim 1, it is characterised in that：The calcined shell powder is through 800-1200 DEG C of calcining
After 4-8h, quenching, the calcined shell powder of gained after grinding.
3. a kind of be used for the quenching device of the calcined shell powder quenching described in claim 2, it is characterised in that：Including by feeding
It is also equipped with the U-shaped treatment box of groove, quenching area and tapping channel composition, and the hopper with lifting rod, the hopper side wall
Agitating device；The feed well is provided with inlet control valve, and the tapping channel upper end is provided with case lid；U-shaped treatment box quenching area
Top is provided with water pipe provided with pond, lower section；The agitating device includes driving plate and the stirring rod in driving plate, described
Stirring rod is that coolant is filled with hollow structure, stirring rod；The case lid is made up of two sub- case lids, described sub- case lid one end
It is hinged with tapping channel, the other end is provided with the groove formation through hole on groove, two sub- case lids, the through hole and the lifting rod
What size matched.
4. soil conditioner as claimed in claim 1, it is characterised in that：The manioc waste is alcoholic fermentation after cassava is removed the peel
Product.
5. soil conditioner as claimed in claim 4, it is characterised in that：The cassava is removed the peel using High Pressure Gun.
6. a kind of preparation method for preparing mixed type soil conditioner as claimed in claim 1, including following several steps：
Step a, pretreatment：Mixed after manioc waste is dehydrated with dewatered sludge, add cavings, obtain preconditioned mixture；
Step b, trough type fermentation：RW is added in mixed material obtained by step a and promotees rotten agent, aerobic fermentation is carried out；
Step c, compound：Material after aerobic fermentation is added into dry manioc waste, bacillus subtilis and oyster shell whiting by weight, forged
Uniformly mixed after burning oyster shell whiting, selenium powder, bentonite, sepiolite, ferric manganese ore powder；
Step d, bar buttress formula fermentation：Material after compound is subjected to bar buttress formula compost fermentation；
Step e, ripening and packaging：Fermentation materials obtained by step d are subjected to cooling ripening, wrapped after pulverizing and sieving
Dress.
7. preparation method as claimed in claim 6, it is characterised in that：In the step a, manioc waste be dehydrated after with desiccation
The mass ratio of sludge is 1.5-2:1；Meanwhile, the moisture of mixture is controlled below 65%.
8. preparation method as claimed in claim 6, it is characterised in that：In the step b, the time of aerobic fermentation is 10-15
My god, during aerobic fermentation early stage 5-7 days, every 24 hours turning and throwing onces；It is every to turn over throwing within 8-12 hours when material moisture is down to less than 50%
Once, fermentation temperature control is below 65 DEG C.
9. preparation method as claimed in claim 6, it is characterised in that：In the step c, the addition of the manioc waste is thing
Expect the 10-15% of gross weight.
10. preparation method as claimed in claim 6, it is characterised in that：In the step d, material moisture before bar buttress formula fermentation
It should control in 35-40%, the time of fermentation is 3-5 days, and fermentation temperature is controlled below 60 DEG C, and every turning in 2 hours is once.
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| CN108048110A (en) * | 2017-12-29 | 2018-05-18 | 广东大众农业科技股份有限公司 | A kind of biomass carbon soil conditioner containing biostimulant and preparation method thereof |
| CN108178682A (en) * | 2017-12-29 | 2018-06-19 | 广东大众农业科技股份有限公司 | A kind of biomass carbon soil conditioner of siliceous calcium and magnesium and preparation method thereof |
| CN108647872A (en) * | 2018-05-02 | 2018-10-12 | 长安大学 | A kind of ardealite base material life cycle environmental impact method for quantitatively evaluating |
| CN108906872A (en) * | 2018-06-05 | 2018-11-30 | 杭州电子科技大学 | The method for administering waste water and heavy metal pollution of soil with calcining oyster shell powder |
| CN108941194A (en) * | 2018-08-27 | 2018-12-07 | 华中农业大学 | Cadmium-lead combined pollution farmland renovation agent and preparation method thereof |
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