CN102424639B - Soil conditioner using biomass power plant ash as main raw material, its preparation and application method - Google Patents
Soil conditioner using biomass power plant ash as main raw material, its preparation and application method Download PDFInfo
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- CN102424639B CN102424639B CN201110272829.3A CN201110272829A CN102424639B CN 102424639 B CN102424639 B CN 102424639B CN 201110272829 A CN201110272829 A CN 201110272829A CN 102424639 B CN102424639 B CN 102424639B
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Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a soil conditioner using biomass power plant ash as a raw material, comprising 80-94 wt% of biomass power plant ash, 5-10 wt% of saw powder, and 1-10 wt% of binding agent. The preparation method comprises the following steps: (1) mixing the raw materials in proportion, adding 0.15-0.30 times of water, and uniformly stirring; (2) carrying out granulation; (3) drying after granulation until the water content being 8-10 wt% at a temperature of 70-150 DEG C; and (4) sieving, weighing and bagging for subsequent use. The application method is characterized by using 50-150 kg of the soil conditioner in per 667 m<2> acid soil. According to the invention, the acid-base balance of the soil is greatly improved, the medium trace elements taken away from the soil in harvesting biomass are supplemented, the reasonable circulation of nutritive components is realized, the growth of plants is promoted; simultaneously the sustained release of mineral elements is achieved, and the utilization rate of fertilizers is greatly increased.
Description
Technical field
The present invention relates to the soil conditioner that this take biomass power plant ash as main raw material, and the preparation method of this soil conditioner and using method, soil conditioner is for improveing the quality of acid soil.
Background technology
Acid soil is the soil general name of pH < 7.China's acid soil area about 2.04 × 108hm2, account for 21% of total area, the vast subtropical and tropical zones of main integrated distribution on the south the Changjiang river such as Hunan, Jiangxi, Fujian, Zhejiang, Guangdong, fine jade, osmanthus, cloud, Guizhou Province, Chongqing, platform, the pH < 5.6 of most of acid soil; The podzolic soil of Da Hinggan Mountains, Northeast China forest zone and the Qinghai-Tibet south is also typical acid soil; In recent years, the acidification of part agrarian area is also on the rise, such as Shouguang, Shandong, Wuhan, Hubei, Anhui Chuzhou, a large amount of farmland and warmhouse booth are because of reasons such as the continuous cropping of dish grain, improper fertilization, plant residue direct returning to farmland, and soil actual pH drops to less than 5.0.
Research proves: the suitable raw pH value of most of farm-forestry crop is 6.0 ~ 7.0; Even if like sour crop, as tomato, capsicum, oil tea, China fir etc., can be affected as growth during pH < 5.0 when soil acidity is excessive, yield and quality all can significantly decline.Thus, from agricultural development security standpoint, it is very necessary that the soil serious to acidifying is improved.
Acid soil improvement method conventional is at present: add liming (comprising: unslaked lime, white lime, limestone dust etc.).But long-term or a large amount of use lime can introduce soil compaction, also can cause the dysequilibrium of the elements such as calcium in soil, magnesium, potassium, cause crop failure; Moreover cost is higher, using method is also not easily grasped.
People have also discovered some mineral or industrial by-products can improve acid soil, as rhombspar, phosphogypsum, ground phosphate rock, flyash, carbon method filter mud, Yellow Phosphorous Slag powder etc.Make amendment with these things, some effects are fine, and cheap.But in some mineral or industry byproduct, the poisoning metal element content such as lead, cadmium, mercury, arsenic, chromium, arsenic is higher, can produce certain pollution to environment; And the soil of its grown place has no lack of these soil conditioner compositions often, needs strange land to use.
At present, biomass power plant ash has been taken as fertilizer and has utilized.But in order to avoid the problem that its alkalescence is brought, in the course of processing often with in acid and, this not only consumes sour resource and energy, and makes it lose the function of improvement acid soil, for soil acidification area, a kind of wasting of resources beyond doubt.Moreover, because Power Plant Ash can not get timely Appropriate application, also there is the hidden danger of " secondary pollution " in some biomass electric power plant.
Summary of the invention
The object of the invention is to solve above-mentioned Problems existing, and to provide a kind of take biomass power plant ash as the soil conditioner of main raw material, under the prerequisite not bringing negative impact, improve acid soil, its technical scheme is:
Take biomass power plant ash as the soil conditioner of main component, comprise biomass power plant ash, sawdust and tackiness agent, each batching according to mass percent is: biomass power plant ash 80 ~ 94%, sawdust 5 ~ 10%, tackiness agent 1 ~ 10% are mixed.
In technique scheme, the main component of described sawdust is Mierocrystalline cellulose, hemicellulose and xylogen.
Attapulgite, clay or wilkinite that massfraction is 8 ~ 10% is added with in described tackiness agent.
In technique scheme, be added with in described tackiness agent massfraction be 1% ~ 4% treated starch or massfraction be the modified lignin resin of 1 ~ 4%.
The second object of the present invention is, provides a kind of method preparing above-mentioned soil conditioner.Its technical scheme is: the step of preparation is:
1., mixing raw material: be that the flying dust of the heat power plant of raw material puts into vessel as main raw material with biomass, add sawdust and tackiness agent, be 80 ~ 94%, 5 ~ 10%, 1 ~ 10% Homogeneous phase mixing according to mass percent, be radix according to mixed quality, add the water that quality is 0.15 ~ 0.30 times of radix, stir;
2., granulation: carry out granulation with Squeezinggranulator or granulating disc or roller pelletizer, particle diameter is 0.1 ~ 5mm, and granulation shape has spherical shape, cylindric, bar-shaped, irregular granule shape;
3., dry: under the condition of temperature 70 ~ 150 DEG C, dry extremely moisture mass ratio after granulation completes is 8 ~ 10%;
4., sieve: screen out the agglomerate that particle diameter is greater than 5mm after drying, and screen out the powder that particle diameter is less than 0.1mm, pack of weighing is for subsequent use.
The third object of the present invention is, provide a kind of method using above-mentioned soil conditioner, its technical scheme is:
On acid soil, spread fertilizer over the fields wholely or directly add and spread fertilizer over the fields, on the acid soil of every 667m2, the consumption of soil conditioner is no more than 500kg.
In technique scheme, every 667m
2acid soil on, the consumption of soil conditioner is 50 ~ 150kg.
In technique scheme, soil conditioner and fertilizer used in combination, fertilizer used in combination is the fertilizer except ammoniacal nitrogen fertilizer.
Biomass power plant ash in the present invention specially refers to biomass to be the boiler fly ash collected by sack cleaner after the fuel combustion in all kinds of fuel-burning power plant of main fuel, because of fuel as: blending ratios such as stalk, yule logs, agricultural processing waste and combustion system as: vibrations fire grate, circulating fluidized bed etc. have difference, ash component ratio has different, but main component is SiO
2, P
2o
5, K
2the oxide compounds such as O, CaO, MgO.Generally: particle diameter between 0.3 ~ 120 μm, tap density 0.27 ~ 0.33 × 10
3kg/m
3, pH value 10.06 ~ 12.97, total porosity about 80%.
According to the composition analysis of above-mentioned biomass power plant ash, its alkalescence is stronger, mineral nutrient content is high and element ratio is more identical with plant demand, as the starting material of use object ~ acidified soil amendment of the present invention, soil conditioner of the present invention is made not only to significantly improve the acid base equilibrium of soil, also supplement the medium trace element taken away from soil when biomass are gathered, realize nutrient and rationally circulate.Typical test result analysis can be found out, soil conditioner of the present invention is applied in acid soil, make use of the OH produced after oxide compound hydrolysis in biomass power plant ash
~h in ion sweetening of the soil
+ion, considerably improves soil pH value, reduces Al
3+the toxic action of ion pair plant; Improve the osmotic equilibrium between root system of plant and external environment; Promote that beneficial microorganism is movable, thus promote the growth of plant.
The soil conditioner particle that the present invention prepares is appropriate, unit weight is little, water-absorbent is strong, specific surface area is high, simultaneously because acid soil is often relatively more sticky heavy, therefore biomass power plant ash of the present invention can effectively improve Soil structure for the soil conditioner of raw material, and have slow releasing function to mineral element, substantially increase the utilization ratio of fertilizer.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment one:
1, by the biomass power plant ash of 850kg, load in stirrer, add 200kg tap water, mix with 50kg sawdust and 100kg clay, after mixing, PH is greater than 10;
2. utilize granulating disc to carry out granulation, particle diameter is 0.1 ~ 5mm, and granulation shape is spherical shape;
3., at dryer, keep temperature to be under the condition of 75 DEG C, being baked to moisture mass ratio is 10%;
4. sieve, screen out the agglomerate that particle diameter is greater than 5mm, and screen out after particle diameter is less than the powder of 0.1mm, be packaged as every bag of 50kg for subsequent use;
5. evenly apply red soil with the consumption of every mu of ground 100kg, plough and make it be mixed in about 0 ~ 20cm table soil;
6. survey after one month, soil pH on average rises to 6.3 by 5.0.
Embodiment two
1, by the biomass power plant ash of 900kg, load in stirrer with 70kg sawdust and 30kg modified lignin resin, add 230kg tap water, mix;
2. utilize Squeezinggranulator to carry out granulation, particle diameter is 0.1 ~ 5mm, and granulation shape is irregular granule shape;
3., at dryer, keep temperature to be under the condition of 100 DEG C, being baked to moisture mass ratio is 9%;
4. sieve, screen out the agglomerate that particle diameter is greater than 5mm, and screen out after particle diameter is less than the powder of 0.1mm, be packaged as every bag of 50kg for subsequent use;
5. evenly apply red soil with the consumption of every mu of ground 110kg, plough and make it be mixed in about 0 ~ 22cm table soil;
6. survey after one month, soil pH on average rises to 6.8 by 5.2, plant sesbania plant growing way and be significantly better than and do not improve soil.
Embodiment three
1, by the biomass power plant ash of 860kg, load in stirrer with 100kg sawdust and 40kg treated starch, add 260kg tap water, mix;
2. utilize roller pelletizer to carry out granulation, particle diameter is 0.1 ~ 5mm, and granulation shape is spherical shape;
3., at dryer, keep temperature to be under the condition of 150 DEG C, being baked to moisture mass ratio is 8%;
4. sieve, screen out the agglomerate that particle diameter is greater than 5mm, and screen out after particle diameter is less than the powder of 0.1mm, be packaged as every bag of 50kg for subsequent use;
5. evenly apply red soil with the consumption of every mu of ground 110kg, impose fertilizer simultaneously, plough and make it be mixed in about 0 ~ 22cm table soil;
6. survey after one month, soil pH value rises to 7.0 by 5.5.
Embodiment four
Biomass power plant ash is that the soil conditioner of raw material is tested the impact of the locust tree Seedling height on acid soil.
Whole ground and soil treatment are the first three monthss in the transplanted seedling tree time in the time; Respectively experimental field all fostered through 3 months after transplanted seedling tree, and impose urea 1 time by the standard of 10kg/667m2; Front soil mean ph value=5.2 are carried out in test;
Take off data is as following table:
Note:
Process: apply soil conditioner 150kg/667m of the present invention
2;
Ck: do not carry out any process.
2) .pH represents the soil mean ph value of corresponding time in forest land sampling actual measurement;
H (cm) represents the locust tree mean stand height of corresponding time in forest land sampling actual measurement, and unit is centimetre.
Above data can be found out: in acid soil, be affixed by soil conditioner of the present invention, can change soil acidity or alkalinity, improve its pH value, have obvious promoter action to the Seedling height of locust tree.
Embodiment five:
Do experiment on Chinese cabbage and paddy rice respectively with described soil conditioner, every 667m
2use biomass power plant ash soil conditioner 100kg of the present invention, the effect of improvement acid soil is: the output of Chinese cabbage adds 17%, and the output of paddy rice adds 23%.
Obviously, biomass power plant ash of the present invention is different as soil conditioner from the starting point as fertilizer, and the present invention is conceived to improve acid soil, improves the performance of acid soil, improves the osmotic equilibrium between root system of plant and external environment; Promote that beneficial microorganism is movable, thus promote the growth of plant.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
The content be not described in detail in this specification sheets belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. be the soil conditioner of main raw material with biomass power plant ash, it is characterized in that: biomass power plant ash is its main raw material, sawdust and tackiness agent are its subsidiary material, and each batching according to mass percent is: biomass power plant ash 80 ~ 94%, sawdust 5 ~ 10%, tackiness agent 1 ~ 10%; Described amendment is particulate state, and particle diameter is 0.1 ~ 5mm.
2. according to claim 1 take biomass power plant ash as the soil conditioner of main raw material, it is characterized in that: the main component of described sawdust is Mierocrystalline cellulose, hemicellulose and xylogen.
3. prepare a method for soil conditioner described in claim 1, it is characterized in that step is:
1., mixing raw material: biomass power plant ash puts into vessel as main raw material, add sawdust and tackiness agent, be 80 ~ 94%, 5 ~ 10%, 1 ~ 10% Homogeneous phase mixing according to mass percent, be radix according to mixed quality, add the water that quality is 0.15 ~ 0.30 times of radix, stir;
2., granulation: carry out granulation with Squeezinggranulator or granulating disc or roller pelletizer, particle diameter is 0.1 ~ 5mm, and granulation shape has spherical shape, cylindric, bar-shaped, irregular granule shape;
3., dry: under the condition of temperature 70 ~ 150 DEG C, dry extremely moisture mass ratio after granulation completes is 8 ~ 10%;
4., sieve: screen out the agglomerate that particle diameter is greater than 5mm after drying, and screen out the powder that particle diameter is less than 0.1mm, pack of weighing is for subsequent use.
4. use a method for soil conditioner described in claim 1, it is characterized in that: on acid soil, spread fertilizer over the fields wholely or directly add and spread fertilizer over the fields, every 667m
2acid soil on, the consumption of this soil conditioner is 50 ~ 150kg.
5. method according to claim 4, is characterized in that: soil conditioner and fertilizer use simultaneously, and fertilizer used in combination is the fertilizer except ammoniacal nitrogen fertilizer.
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| CN201110272829.3A CN102424639B (en) | 2011-09-15 | 2011-09-15 | Soil conditioner using biomass power plant ash as main raw material, its preparation and application method |
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| CN102424639B true CN102424639B (en) | 2015-03-18 |
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| CN102765998A (en) * | 2012-06-27 | 2012-11-07 | 南京农业大学 | Acid soil conditioner prepared by biomass power generation waste and preparation method of acid soil conditioner |
| CN102838428B (en) * | 2012-09-11 | 2014-08-06 | 广东万山农业科技开发有限公司 | Granular-structure-based soil conditioner and preparation method thereof |
| CN102942394A (en) * | 2012-11-23 | 2013-02-27 | 中盈长江国际新能源投资有限公司 | Novel fertilizer and production method thereof |
| CN103497771B (en) * | 2013-09-06 | 2015-12-09 | 中国科学院红壤生态实验站 | A kind of acid soil composite modifying agent based on biomass power plant ash |
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| CN105732235A (en) * | 2016-03-22 | 2016-07-06 | 四川沃达丰生物科技有限公司 | Soil conditioner and preparation method thereof |
| CN106631553A (en) * | 2016-10-29 | 2017-05-10 | 赖坤流 | Preparation method for plant ash granular fertilizer |
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| CN109837094B (en) * | 2019-03-15 | 2020-11-24 | 华电电力科学研究院有限公司 | Acid soil conditioner and application method thereof |
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| CN112358883A (en) * | 2020-11-23 | 2021-02-12 | 安徽国祯生态科技有限公司 | Self-disintegrating soil conditioner and preparation method thereof |
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|---|---|---|---|---|
| CN1357519A (en) * | 2001-11-09 | 2002-07-10 | 中国科学院新疆化学研究所 | Long-acting plant composite fertilizer |
| CN101391932A (en) * | 2008-11-07 | 2009-03-25 | 四川大学 | Slope artificial soil structuredness conditioner |
| CN102173939A (en) * | 2011-02-02 | 2011-09-07 | 安徽国祯生物质发电有限责任公司 | Production process of lignin ammonium sulphonate as plant root growth regulator |
| CN102180747A (en) * | 2011-03-03 | 2011-09-14 | 安徽新农村生态肥料有限公司 | Preparation method of carbon-based compound fertilizer |
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| KR100359061B1 (en) * | 1999-12-02 | 2002-11-04 | 주식회사태백물류 | Organic and inorganic complex fertilizer using fly ash and preparing method thereof |
| JP2009096647A (en) * | 2007-10-12 | 2009-05-07 | Oji Paper Co Ltd | Organic fertilizer and method of manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1357519A (en) * | 2001-11-09 | 2002-07-10 | 中国科学院新疆化学研究所 | Long-acting plant composite fertilizer |
| CN101391932A (en) * | 2008-11-07 | 2009-03-25 | 四川大学 | Slope artificial soil structuredness conditioner |
| CN102173939A (en) * | 2011-02-02 | 2011-09-07 | 安徽国祯生物质发电有限责任公司 | Production process of lignin ammonium sulphonate as plant root growth regulator |
| CN102180747A (en) * | 2011-03-03 | 2011-09-14 | 安徽新农村生态肥料有限公司 | Preparation method of carbon-based compound fertilizer |
Non-Patent Citations (1)
| Title |
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| 草木灰——价廉物美的"土"钾肥;周艳飞;《农村实用技术》;20020531(第5期);28 * |
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