CN103224418A - Blue alga compost and its making method - Google Patents
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- CN103224418A CN103224418A CN2013100746703A CN201310074670A CN103224418A CN 103224418 A CN103224418 A CN 103224418A CN 2013100746703 A CN2013100746703 A CN 2013100746703A CN 201310074670 A CN201310074670 A CN 201310074670A CN 103224418 A CN103224418 A CN 103224418A
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Abstract
The invention discloses a blue alga compost and its making method. The making method of the blue alga compost comprises the following steps: mixing blue algae with biomass charcoal to obtain a blue alga-biomass charcoal mixture, and carrying out aerobic composting of the blue alga-biomass charcoal mixture in a constant-temperature and constant-humidity incubator to obtain the blue alga compost. The making method of the blue alga compost reduces the loss of ammonium nitrogen and total nitrogen in the blue alga compost composting process, allows the nutrient contents after composting ending to reach an organic fertilizer standard, reduces the contents of toxins in the blue algae, and improves the seed germination index of a mixed compost. The method has the advantages of simplicity, practicality, safety, environmental protection and substantial effects.
Description
Technical field
The invention belongs to biological fertilizer field, relate to a kind of blue-green algae compost and preparation method thereof.
Background technology
At present, more to the research of blue-green algae improvement aspect both at home and abroad, salvaging is to solve blue-green algae crisis method the most efficiently, but the research of the treatment and disposal of salvaging blue-green algae is relatively lagged behind.Because of the blue-green algae frustule discharges multiple algae toxin after breaking, animals and plants and human safe drinking water have been constituted serious threat, the innoxious technology of various blue-green algae resource utilizations is also arisen at the historic moment.At present, the research that utilizes both at home and abroad at blue-green algae mainly contain the preparation feed with amino acid, extraction Phycocyanins, C-, polysaccharides, gamma-linoleic acid, do biofuel, producing methane through anaerobic fermentation, system fertilizer etc.Because of blue-green algae contains nutrition such as rich in protein and nitrogen, phosphorus, relevant studies show that utilizes the high temperature aerobic composting method that blue-green algae is developed to the high-quality organic fertilizer, not only efficiently solves easily corrupt smelly problem of blue-green algae, and can be converted into agricultural resource, become " giving up " and be " treasured ".
The aerobic compost technology is the most basic, the most economical and effective means in the innoxious technology of blue-green algae resource utilization.But compost research at present mainly is the composting utilization that concentrates on raw materials such as domestic refuse, city excess sludge and fowl and animal excrement, and the research data of relevant blue-green algae compost aspect is very limited.Domestic relevant report though the aerobic compost treatment process has certain effect to the degraded of blue-green algae algae poison number, but still has in the product-fertilizer of algae the toxin remains after processing of some amount, can produce security risk to plant growth and human health after applying the farmland.Therefore, research algae toxin composting process quick, efficient degradation is very important, and very urgent.Simultaneously, blue-green algae has C/N again than characteristics low, that water ratio is higher, freeboard lacks, should not apply mechanically the composting conditions of other raw materials and the evaluation index of becoming thoroughly decomposed during compost.
Charcoal (domestic have be translated into biomass charcoal] or biological burnt) be the mixture of a kind of non-pure carbon of producing of fossil oil or organism incomplete combustion.Characteristics such as specific surface area is big because itself has, porousness, high C/N compare, often be used as sorbent material, and charcoal can improve soil organic carbon, improve soil water-retaining, nutrient preserving capability energy, reduce nutrient loss, be of value to that soil microorganisms perches and movable, particularly mycorrhizal fungi is good soil improvement agent.
Summary of the invention
The objective of the invention is above-mentioned deficiency, a kind of making method of blue-green algae compost is provided at prior art.
Another object of the present invention provides the blue-green algae compost that utilizes this method preparation.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of making method of blue-green algae compost, with blue-green algae mix with biomass charcoal blue-green algae-biomass charcoal mixture, blue-green algae-biomass charcoal mixture is carried out aerobic compost in the fixed temperature and humidity incubator, the blue-green algae compost; Wherein the water ratio of blue-green algae-biomass charcoal mixture is 50%～80%, and pH is 8.0～9.5, and C/N is 18～30; Blue-green algae-biomass charcoal mixture carries out aerobic compost in the fixed temperature and humidity incubator temperature is set to intensification (30 ℃～60 ℃) process, high temperature (60 ℃) time-continuing process, cooling (60 ℃～20 ℃) process and 20 ℃ of cooling stabilization process.
Wherein, described blue-green algae water ratio is 96%.
Described blue-green algae-biomass charcoal mixture carries out aerobic compost in the fixed temperature and humidity incubator temperature setting is preferably in 5～16 days temperature is raised to 60 ℃ from 30 ℃, under 60 ℃ of conditions of high temperature, continue to cultivate 7 days, in 4 days, temperature is dropped to 20 ℃ from 60 ℃, stablized 20 days 20 ℃ of following constant temperature coolings at last.
Described biomass charcoal is selected from wheat stalk charcoal or rice husk charcoal.
When described biomass charcoal was the rice husk charcoal, the dosage ratio of rice husk charcoal and blue-green algae was 1:29～1:33, and C/N is 23.4～19.8; 30～45 days total times of aerobic compost, preferred 35～41 days.
When described biomass charcoal was the wheat stalk charcoal, the water ratio of blue-green algae-biomass charcoal mixture was 70%～75%, preferred 73.4%; PH is 8.2～8.5, preferred 8.31; C/N is 25～30, preferred 27.9; 45～50 days total times of aerobic compost, preferred 47 days.
Blue-green algae compost according to above-mentioned making method preparation.
Beneficial effect:
The present invention is directed to blue-green algae C/N than low, water ratio is higher, freeboard is few, the present situation that blue-green algae algae poison number is difficult to degrade significantly behind the compost, with biomass charcoal as blue-green algae aerobic compost amendment, biomass charcoal has porousness, specific surface area is big, good preserve moisture and fertility is arranged, nitrogen there is the absorption fixed action, it can play and regulate material C/N, water ratio, freeboard, effects such as compost nutrient guarantee rapidly and efficiently carrying out of compost, and biomass charcoal can reduce ammonium nitrogen, the loss of full nitrogen, and blue-green algae and its aerobic compost can reduce the algae poison number of blue-green algae, thereby improve the seed germination index, with the blue-green algae resource utilization.
Compost method of the present invention has reduced the loss of ammonium nitrogen in the blue-green algae composting process, full nitrogen, compost finishes the back nutrient content and reaches the fertilizer standard, improve hybrid reactor topic seed germination index, thereby reduce the method that blue-green algae algae poison number reduces blue-green algae algae content of toxins, this method is simple, practicality, safety and environmental protection, and effect is remarkable.
Description of drawings
The influence of ammonium nitrogen content in biomass charcoal of Fig. 1, different ratios (wheat stalk charcoal, the rice husk charcoal of two processing) and the blue-green algae aerobic composting process.
The influence that total nitrogen content changes in biomass charcoal of Fig. 2, different ratios (wheat stalk charcoal, the rice husk charcoal of two processing) and the blue-green algae aerobic composting process.
The variation of biomass charcoal of Fig. 3, different ratios (wheat stalk charcoal, the rice husk charcoal of two processing) and blue-green algae aerobic composting process total nutrient (N+P2O5+K2O) content.
The biomass charcoal of Fig. 4, different ratios (wheat stalk charcoal, the rice husk charcoal of two processing) influences histogram as a result to the seed germination exponential of heap body vat liquor behind the compost.
Embodiment
With blue-green algae and biomass charcoal (the wheat stalk charcoal of salvaging, the rice husk charcoal) with different mixed, mix back gained blue-green algae-wheat stalk charcoal mixt, blue-green algae-rice husk charcoal mixt one, the water ratio of blue-green algae-rice husk charcoal mixt two is respectively 73.4%, 57.5%, 50.8%, pH is respectively 8.31,8.59,9.38, and C/N is respectively 27.9,19.8,23.4.Mixture is put into the bubble chamber of 20cm * 20cm * 34cm respectively, put it into again in the intelligent constant-temperature constant humidity incubator, according to aerobic compost variation of temperature rule, with three kinds of compost mixture temperature respectively at 1～16 day, 1～11 day, be raised to 60 ℃ from 30 ℃ in 1～5 day, all under 60 ℃ of conditions of high temperature, continue subsequently to cultivate 7 days, in 4 days, temperature is dropped to 20 ℃ from 60 ℃ then, stablized 20 days 20 ℃ of following constant temperature coolings at last, the temperature of fixed temperature and humidity incubator artificially is set, it is carried out aerobic compost.The compost time of three kinds of different treatment was respectively 47,42,36 days.Wherein, blue-green algae is taken from the blue-green algae that the outer herds of horses lion dam village of Buddhism No. 156 Nanjing lion unicorn Technician College is salvaged in the Nanjing, with the whizzer of rotating speed 6000r/min centrifugal ten minutes, the blue-green algae water ratio is dropped to 96%, biomass charcoal: wheat stalk charcoal, rice husk charcoal are all available from the sharp new forms of energy of Henan Province's Shangqiu City three company limited.
Seed germination exponential measuring method: get above-mentioned three kinds respectively and handle before the compost and compost end back compost mixture sample.The sample of blue-green algae wheat stalk charcoal compost treatment and the solid-liquid (g/ml) of water are than being 1:20, and the solid-liquid (g/ml) of the sample of other two kinds of blue algae water rice hull carbon compost treatment and water is than being 1:10.All under 150r/min, shake 1h, centrifugal 10min under 4800r/min, get on the filter paper of supernatant liquor 5ml in culture dish, insert 40 Plantula Brassicae chinensis seeds (selected April is climing), after cultivating 72h under 25 ℃ of dark culturing casees, it is long to measure rate of emergence and root, calculates seed germination index (GI): GI=(rate of emergence of compost treatment * seminal root is long)/(rate of emergence of contrast * seminal root is long) * 100%.There is significant dose-effect relationship in the algae toxin to the eco-toxicity of seed germination, and the seed germination exponential improves the reduction that can reflect the algae content of toxins
By the aerobic compost of biomass charcoal and blue-green algae different ratios, reduce the loss (Fig. 2) of ammonium nitrogen in the blue-green algae composting process, full nitrogen, compost reaches organic fertilizer standard (Fig. 3) after finishing.Rice husk biomass charcoal and blue-green algae mix in the aerobic composting process as seen from the figure, and the relative add-on of rice husk biomass charcoal is high more, and the rate of loss of ammonium nitrogen, full nitrogen is low more.
By the aerobic compost of above-mentioned biomass charcoal and blue-green algae different ratios, reduce the content of algae toxin in the heap body, the seed germination index of the heap body vat liquor behind the compost increases, and the amplitude that increases is along with the increase of the relative dosage of biomass charcoal raise (Fig. 4).But the relative dosage of biomass charcoal increases, cost increases, and biomass charcoal has higher C/N ratio, when consumption is too high, influence the process of aerobic compost, and the cost of increasing input is so it is 23.4 that the dosage ratio of rice husk charcoal and blue-green algae is preferably 1:29(C/N)～1:33(C/N is 19.8) (the blue-green algae water ratio is 96%).Behind blue-green algae and the wheat stalk charcoal mixing aerobic compost, also the content of algae toxin in the body is piled in reduction, and the seed germination index that compost finishes back heap body vat liquor has obvious rising, can think and pile the basic nontoxicity of body.
Claims (9)
1. the making method of a blue-green algae compost, it is characterized in that with blue-green algae mix with biomass charcoal blue-green algae-biomass charcoal mixture, blue-green algae-biomass charcoal mixture is carried out aerobic compost in the fixed temperature and humidity incubator, the blue-green algae compost; Wherein the water ratio of blue-green algae-biomass charcoal mixture is 50%～80%, and pH is 8.0～9.5, and C/N is 18～30; Blue-green algae-biomass charcoal mixture carries out aerobic compost in the fixed temperature and humidity incubator temperature is set to 30 ℃～60 ℃ temperature-rise period, 60 ℃ of high temperature time-continuing processes, 60 ℃～20 ℃ temperature-fall periods and 20 ℃ of cooling stabilization process.
2. the making method of blue-green algae compost according to claim 1 is characterized in that described blue-green algae water ratio is 96%.
3. the making method of blue-green algae compost according to claim 1, it is characterized in that described blue-green algae-biomass charcoal mixture carries out aerobic compost in the fixed temperature and humidity incubator temperature is set in 5～16 days temperature is raised to 60 ℃ from 30 ℃, under 60 ℃ of conditions of high temperature, continue to cultivate 7 days, in 4 days, temperature is dropped to 20 ℃ from 60 ℃, stablized 20 days 20 ℃ of following constant temperature coolings at last.
4. the making method of blue-green algae compost according to claim 1 is characterized in that described biomass charcoal is selected from wheat stalk charcoal or rice husk charcoal.
5. the making method of blue-green algae compost according to claim 4, when it is characterized in that described biomass charcoal is the rice husk charcoal, the dosage ratio of rice husk charcoal and blue-green algae is 1:29～1:33, C/N is 23.4～19.8.
6. the making method of blue-green algae compost according to claim 5 is characterized in that 30～45 days total times of aerobic compost, preferred 35～41 days.
7. the making method of blue-green algae compost according to claim 4, when it is characterized in that described biomass charcoal is the wheat stalk charcoal, the water ratio of blue-green algae-biomass charcoal mixture is 70%～75%, preferred 73.4%; PH is 8.2～8.5, preferred 8.31; C/N is 25～30, preferred 27.9.
8. the making method of blue-green algae compost according to claim 7 is characterized in that 45～50 days total times of aerobic compost, preferred 47 days.
9. according to the blue-green algae compost of each described making method preparation in the claim 1～8.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396179A (en) * | 2013-08-06 | 2013-11-20 | 江苏太湖地区农业科学研究所 | Rapid composting method of water plant by utilization of biomass charcoal |
| CN103771936A (en) * | 2013-12-26 | 2014-05-07 | 山东洁晶集团股份有限公司 | Method for accelerating fermentation of peanut shells by using seaweed residue decomposed old materials |
| CN103787750A (en) * | 2014-01-13 | 2014-05-14 | 沈阳农业大学 | Charcoal livestock and poultry excrement composting conditioner and preparation and use method thereof |
| CN103864543A (en) * | 2014-03-04 | 2014-06-18 | 湖南大学 | Soil remediation agent prepared from straws serving as raw materials as well as preparation method and application |
| CN104163665A (en) * | 2014-08-15 | 2014-11-26 | 西南大学 | Method for reducing phosphorus activity in compost product |
| CN104446691A (en) * | 2013-09-24 | 2015-03-25 | 中国科学院上海高等研究院 | Micro algae-biochar composite bio-fertilizer and preparation method thereof |
| CN105801248A (en) * | 2016-03-03 | 2016-07-27 | 唐山海奥有机肥有限公司 | Preparation method of stable carbon source organic fertilizer |
| CN109665913A (en) * | 2019-01-25 | 2019-04-23 | 甘肃省治沙研究所 | A kind of cattle manure organic fertilizer and preparation method thereof |
| CN117303968A (en) * | 2023-10-27 | 2023-12-29 | 愚公生态科技股份有限公司 | Preparation method and application of microbial activated carbon fertilizer |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396179A (en) * | 2013-08-06 | 2013-11-20 | 江苏太湖地区农业科学研究所 | Rapid composting method of water plant by utilization of biomass charcoal |
| CN103396179B (en) * | 2013-08-06 | 2015-01-14 | 江苏太湖地区农业科学研究所 | Rapid composting method of water plant by utilization of biomass charcoal |
| CN104446691A (en) * | 2013-09-24 | 2015-03-25 | 中国科学院上海高等研究院 | Micro algae-biochar composite bio-fertilizer and preparation method thereof |
| CN103771936A (en) * | 2013-12-26 | 2014-05-07 | 山东洁晶集团股份有限公司 | Method for accelerating fermentation of peanut shells by using seaweed residue decomposed old materials |
| CN103771936B (en) * | 2013-12-26 | 2016-01-20 | 山东洁晶集团股份有限公司 | A kind of utilize marine alga slag become thoroughly decomposed old material accelerate Pericarppium arachidis hypogaeae fermentation method |
| CN103787750A (en) * | 2014-01-13 | 2014-05-14 | 沈阳农业大学 | Charcoal livestock and poultry excrement composting conditioner and preparation and use method thereof |
| CN103864543A (en) * | 2014-03-04 | 2014-06-18 | 湖南大学 | Soil remediation agent prepared from straws serving as raw materials as well as preparation method and application |
| CN103864543B (en) * | 2014-03-04 | 2015-05-13 | 湖南大学 | Soil remediation agent prepared from straws serving as raw materials as well as preparation method and application |
| CN104163665A (en) * | 2014-08-15 | 2014-11-26 | 西南大学 | Method for reducing phosphorus activity in compost product |
| CN105801248A (en) * | 2016-03-03 | 2016-07-27 | 唐山海奥有机肥有限公司 | Preparation method of stable carbon source organic fertilizer |
| CN109665913A (en) * | 2019-01-25 | 2019-04-23 | 甘肃省治沙研究所 | A kind of cattle manure organic fertilizer and preparation method thereof |
| CN117303968A (en) * | 2023-10-27 | 2023-12-29 | 愚公生态科技股份有限公司 | Preparation method and application of microbial activated carbon fertilizer |
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Application publication date: 20130731 |