CN103193530A - Method for producing labile phosphorus organic fertilizer by using pig manure - Google Patents

Abstract

The invention provides a method for producing labile phosphorus organic fertilizer by using pig manure. According to the method, pig manure which is rich in humus is used for activating inorganic phosphorus which is used for odor removal. The method overcomes the defects of low utilization rate of phosphate fertilizer realizes environmental protection in production and soil improvement and the like, and further realizes the harmless, reducing and resourceful treatment of wastes and is a good labile phosphorus organic fertilizer production method.

Description

Utilize pig manure to make the method for active phosphorus fertilizer

Technical field

The invention belongs to innoxious, minimizing, resource utilization on a kind of production method of agricultural fertilizer and the environmental protection field.

Background technology

Country is more and more stricter to the management and control of culturing the industry waste at present, and the processing of animal excrements is faced with severe situation, the condition that many plants are faced with rectification, stop doing business and move.In fact, breeding enterprise can effectively be handled animal row pond thing fully like a cork, make that it is innoxious, minimizing, resource utilization, other people pull away or undersell still can run into and handle untimely predicament thereby can walk out subsidy, can also obtain high profit simultaneously from the sale of fertilizer.

This patent is simultaneously at present industry present situation.During the fermentation, because present solid-fermented technique specialty and the shortage that the practical work experience talent is arranged, most enterprises all can produce by foul smelling in the production process, comprise ammonia, hydrogen sulfide etc.Simultaneously, have the index of the fertilizer that part enterprise makes defective, its defective content is from the announcement of government over the years to the market selective examination, and great majority are moisture, pH, organic matter, defective these several the contents of total nutrient.Reason from stench produces generally has four reasons partially or completely to meet, and comprising: high temperature, high pH, anaerobism, low ratio of carbon to ammonium, for avoiding the generation of stench, will carry out corresponding effectively control to it.For the control of moisture, this is simple relatively, but preferably utilizes himself temperature to carry out seasoning.Defective for pH, organic matter and total nutrient, in general, being irrational prescription and irrational technology combines and causes, for example: it is too violent that the low ratio of carbon to ammonium that prescription causes adds that too high leavening temperature causes fermentation to decompose, and synthesizing of soil ulmin is too faint, and nitrogen volatilization is extremely serious.

Pig manure belongs to the cold manure raw material, because humus content is to belong to one of the highest in similar fertilizer, make fertilizer with it, its risk can reach minimum (not being prone to problems such as burning seedling), effect is (it is fabulous to protect fertilizer, water conservation, insulation, airing function) again significantly, is a kind of material that extremely is worth utilization.The composition of pig manure is for through metabolite such as the dregs of beans, wheat bran, rice bran, corn of digestion or the food omitted without the pig feed, material after the solid-liquid separation, the contour cellulosic material volume ratio of wheat bran is more, through the pig manure of solid-liquid separation, very low to the requirement of moisture controlled, because its hole is big, ventilation property is strong, the fermentation that more easily heats up of these materials, but very easily stable again after the fermentation, relatively easily operation on producing.

General chemical phosphatic ferfilizer, owing to reasons such as soil solidification effects, the distance that phosphorus moves in soil is less than 3cm, be unfavorable for the absorption of crop, general utilization is between 10 ~ 25%, and through the phosphate fertilizer after the fertilizer activation, its utilization ratio can be increased to 30 ~ 50%, and this root growth for plant, seed are formed with extremely good effect.Although soils in south china does not lack phosphorus, but crop is to lack phosphorus, because the utilization ratio of phosphorus is too low, the enforcement of this patent will bring out and out benefit for the peasant.

Summary of the invention

Collect pig manure, its moisture standards is the natural movement without water filling, or pig manure is through in mechanical means solid-liquid separation or the airing moisture to 75%.Collect any in the high material of Mierocrystalline celluloses such as mushroom residue, wooden chaff, Chinese medicine slag, its diameter can not surpass 2cm, and moisture is not higher than 50%, must stack naturally and utilize after growing white hypha again.

The organic material composting agent is that this patent invention company makes at these material fermentations specially, when using for the first time, be that the materials such as rice bran close with fineness mixes at least 20 times of expansions mutually, and then mix in the adding major ingredient, and later use, be that the similar finished product powdery fertilizer (sieving through fragmentation) of fineness produced with this patent mixes mutually and enlarges at least 20 times, and then mix in the adding major ingredient.After the organic material composting agent makes an addition in the material, make living bacteria count in the material reach 600,000/gram (wet basis), its effective viable bacteria comprises two kinds of subtilis and aspergillus nigers at least.

Decide compost moisture in 55 ~ 70% these scopes, the formulation of fermentating formula (mainly being the proportioning of pig manure and mushroom residue or other surrogates) is mainly adjusted according to the range of needs of moisture, and the judgement of moisture, can be after mixing of materials be even, with scoop shovel one big shovel material, throw away toward concrete floor one, material impacts loose the scattering of concrete floor and gets final product.

Carry out the turning oxygen supply every day, temperature to surpass 55 ℃ at least 2 days.If adopt heating, the purpose of its heating also can only be starting temperature or the oven dry in order to reach strain fermentation, the heat that produces with the biochemical activity of bacterial classification is two different concepts, forbids adopting power consumption modes such as electric heating, combustion heat to be heated, and can utilize to shine upon and the greenhouse heat-insulating method.When its temperature is down to below 50 ℃, moisture is lower than at 40% o'clock and begins to carry out next step operation.

During the fermentation, if under the situation that stench occurs, the detected result of material generally is the pH meta-alkalescence, at this moment, sampling is beforehand with the laboratory and does experiment, and draws the addition of acidic substance, add acidic substance to compost according to test-results then, continue aerobic turning thermophilic fermentation, like this, can significantly reduce the generation of foul smell.In any case but the interpolation of each acidic substance all will make the phosphorus content in the fertilizer increase by 0.2 ~ 0.5 percentage point.Even do not occur surpassing the situation of pH8.5 in the whole fermentation, also need to add calcium superphosphate, but will make pH be not less than 5.5, approximately can improve 0.5 ~ 1 percentage point and get final product.

Be down to below 50 ℃ when temperature, moisture is lower than at 40% o'clock, carries out coarse breaking earlier, piles at least 3 meters of height again and deposits (highest point has 3 meters and gets final product), stirs once in per 3 ~ 5 days, is not higher than 40 ℃ until temperature, and moisture is not higher than 30%.

Carry out process operations such as fine crushing, screening and packing to detecting qualified compost, making becomes finished product fertilizers.

This fertilizer is the very high material of a kind of humus content, and water conservation, insulation, guarantor's fertilizer, venting capability are strong, and contain the higher relatively phosphoric through overactivation, and the root growth of crop, seed development etc. are had fabulous facilitation effect.As the saying goes that seedling strong half a year of grain has had good root system, and good soil has been arranged, the chance of crop high yield is just big.

Claims (6)

1. utilize plant's pig manure to make the method for high phosphorus organic fertilizer, it is characterized in that: calculate with butt matter weight, pig manure accounts for 70 ~ 95%, any in the high material of Mierocrystalline celluloses such as mushroom residue, wooden chaff, Chinese medicine slag accounts for 5 ~ 30%, organic material composting agent addition accounts for 0.02% of wet basis weight, above three kinds of materials are mixed, adjust moisture in 55 ~ 70% scopes; In the fermenting process, when foul odours such as ammonia is arranged occur, add the calcium superphosphate of acidity or phosphorous spent acid or acid sludge and regulate pH near neutrality.

2. according to the described raw material of claim 1, it is characterized in that: the moisture of pig manure is the natural movement without water filling, or pig manure is through in mechanical means solid-liquid separation or the airing moisture to 75%; Any in the high material of Mierocrystalline celluloses such as mushroom residue, wooden chaff, Chinese medicine slag, its diameter can not surpass 2cm, and moisture is not higher than 50%, must stack naturally and utilize after growing white hypha again.

3. according to the described organic material composting agent of claim 1, it is characterized in that: the agent of this organic material composting is that this patent invention company makes at these material fermentations specially, when using for the first time, be that the materials such as rice bran close with fineness mixes at least 20 times of expansions mutually, and then mix in the adding major ingredient, and later use, be that the similar finished product powdery fertilizer of producing with this patent of fineness mixes at least 20 times of expansions mutually, and then mix in the adding major ingredient, after the organic material composting agent makes an addition in the material, make the living bacteria count in the material reach 600,000/gram (wet basis).

4. according to claim 1 is described above three kinds of materials are mixed, adjust moisture between 55 ~ 70%, it is characterized in that: the formulation of fermentating formula is mainly adjusted according to the range of needs of moisture, and the judgement of moisture, can be after mixing of materials be even, with scoop shovel one big shovel material, to throw away toward concrete floor one, material impacts loose the scattering of concrete floor and gets final product.

5. described when foul odours such as ammonia is arranged occur according to claim 1, add the calcium superphosphate of acidity or phosphorous spent acid or acid sludge and regulate pH near neutrality, proceed aerobic fermentation, it is characterized in that: under the situation that stench occurs, the result generally is the pH meta-alkalescence, at this moment, sampling is beforehand with the laboratory and does experiment, and draws the addition of acidic substance, add acidic substance to compost according to test-results then, continue fermentation, like this, can significantly reduce the generation of foul smell; The interpolation of each acidic substance, all to make the phosphorus content in the fertilizer increase by 0.2 ~ 0.5 percentage point, even do not occur surpassing the situation of pH8.5 in the whole fermentation, also need to add calcium superphosphate, but make pH be not less than 5.5, the increase of phosphoric approximately can improve 0.5 ~ 1 percentage point and get final product.

6. according to the described method of utilizing plant's pig manure to make high phosphorus organic fertilizer of claim 1, it is characterized in that: carry out coarse breaking before the ageing earlier, pile at least 3 meters of height again and deposit (highest point has 3 meters and gets final product), stirred once in per 3 ~ 5 days, be not higher than 40 ℃ until temperature, moisture is not higher than 30%.