CN103626600B - A kind of organic fertilizer produced from sludge generated and preparation method thereof - Google Patents
A kind of organic fertilizer produced from sludge generated and preparation method thereof Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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Abstract
<b> organic fertilizer produced from sludge generated and preparation method thereof, is made up of the raw material of following weight proportion: </b> dewatered sludge 50%-70%, medical stone 5%-10%, Fluorspar Powder 5%-20%, auxiliary material 20%-30%, bio-fermentation agent 0.1%-0.3%.With present method making organic fertilizer is simple, safety, running cost are low.
Description
Technical field
The present invention relates to comprehensive utilization and the process for comprehensively treating field of the mud of a kind of sewage work discharge, particularly relate to a kind of organic fertilizer produced from sludge generated and preparation method thereof
Background technology
The sludge quantity (dry weight) about 2,000,000 tons that wastewater treatment in China factory discharges every year, and with annual more than 10% speed increment.The problem of environmental pollution that mud produces becomes increasingly conspicuous, and has caused great potential safety hazard, environmental stress and economical load.Containing a large amount of hazardous and noxious substances such as heavy metal substance, pathogenic bacteria in mud, do not obtain safety, the harm of mud to environment that environmental protection treatment is disposed is larger.Sludge treatment technique unit mainly comprises the technological processs such as sludge condensation, dehydration, digestion, fermentation, mummification.Sludge treatment has these several usually: (1) landfill, refers to that mud carries out landfill stabilization at special landfill yard, and open and flat, compacting carries out earthing as common solid waste landfill.(2) burn, refer to that disposing sludge is the heat that make use of mud itself in burning process, and organism permineralization after burning, self property changes completely.The atmospheric polluting material that sludge anhydration burning produces, ash fly, the discharge of lime-ash is all done and processed disposal accordingly.(3) material of construction utilizes, generally comprise as cement additive, brickmaking and aglite processed etc. at present, in addition, mud material of construction utilizes techniques such as also having mud system biochemical fiberboard, roadbed material, fence, these techniques also exist that technology is not mature enough or the amount of dissolving is too little at present, can not meet the quantity discharged of mud.(4) agricultural, can solve a large amount of mud, specific resistance to filtration technology is of a great variety, but technology is uneven, does not have unified standard to the increasing instructing sludge treatment to cause cost, and What is more causes the secondary pollution of environment.Traditional sludge treatment process has anaerobic digestion, aerobic sigestion, fermentation, alkaline process to stablize.Alkaline process is stable is carry out stabilized sludge, usual feeding lime by adding chemical agent.The stable Main Function of alkaline process be to solve mud foul smell problem and kill pathogenic bacteria, the alkaline process steady decrease manurial value of mud, but mud is more easily dewatered.In fact do not have direct degradation of organic substances after adding lime, and add sludge volume, so this directive/guide is not recommended to adopt.Sludge digestion mainly comprises anaerobic digestion and aerobic sigestion.Anaerobic sludge digestion relies on anaerobion to make organic substance decomposing under anaerobic and stable a kind of bioremediation, by hydrolysis, produce acid, object that methane phase 3 stages complete organic substance decomposing, most of pathogenic bacterium or roundworm egg are killed or are decomposed as organism simultaneously.Sludge aerobic digestion essence is the continuation of activated sludge process, and its principle of work is the endogenous metabolism process of the microbial organisms in mud.Be filled with oxygen by aeration, the microbial organisms autoxidation in active sludge decomposes, and is converted into carbonic acid gas, water, ammonia etc., mud is stablized.Product odorless after process, similar soil ulmin, the advantages such as fertilizer efficiency is higher, operating safety, but sludge aerobic digestion is due to needs input power, so running cost is higher.
Summary of the invention
The invention provides a kind of organic fertilizer produced from sludge generated and preparation method thereof, he utilizes the mud produced in sewage work's business processes sewage process, solve the sludge handling problem of sewage disposal enterprise, with present method making organic fertilizer is simple, safety, running cost are low.
Technical scheme of the present invention is achieved in that
a kind of organic fertilizer produced from sludge generated, described organic fertilizer produced from sludge generated is made up of the raw material of following weight proportion:
Dewatered sludge 50%-70%, medical stone 5%-10%, Fluorspar Powder 5%-20%, auxiliary material 20%-30%, bio-fermentation agent 0.1%-0.3%; Each composition weight sum is 100%;
its preparation method comprises the steps:
(1) batching process: after the raw material of above-mentioned weight proportion is mixed, water spray, moisture controlled is 45%-65%; As on the low side in pH value after inspection, with unslaked lime, pH is adjusted to about 7-8, mixes thoroughly.
(2) fermentation maturity: place election, summer ventilates, fermentation maturity place is done at shady and cool place; Winter leeward area without shade or indoor carry out, heap temperature when rising to 40 DEG C ~ 70 DEG C, can start overturning, if heap temperature is more than 40 DEG C, then should overturning again, the material of outside and bottom should be ploughed under in heap during overturning.When after lasting overturning 2-4 times, the ordorless peculiar smell of material, shows to have become thoroughly decomposed;
(3) sieve: the material of powdery can check material to sieve.Bake drying or airing material, moisture controlled≤30%, N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes powdery organic fertilizer;
(4) granulation: by granulation after the pulverizing with granular organic fertilizer of powdery, then through bake drying or airing, moisture controlled is ≤30%, and N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes granular organic fertilizer.
described auxiliary material can be following any one: useless bacterium slag, straw powder, sawdust, rice bran
Wherein each raw material effect is as follows:
medical stone: (1) adsorptive power is strong, deodorization.So-called absorption is the whole solvation of solid with porousness, huge surface area, and reaction that is chemical, physics occurs.When medical stone is as activator and water effect, have two kinds of situations below: the absorption of physics is that the atom of tactile agent (medium) surface adsorption is drawn through, become+the effect of ion and-ion, adsorption affects by granularity, ionization, temperature three factors.Chemistry absorption be intermolecular solvent action, make its be decomposed into+ion and-ion.Atom in decomposition, ion, be attracted on other materials.Thisly be adsorbed with a Neutron Coupling and two electron coupling, medical stone is two electron coupling.Can see that medical stone has many holes by electron microscope, this is one of significant aesthetic appearance of medical stone.The surface-area of 1 gram of medical stone reaches hundreds of square metre, is 20000 times with amount activated carbon.Medical stone can absorb, decompose, remove various material, as: amine, chlorine, mercury, cadmium, cyanogen, White staphylococcus, colon bacillus, bacterium and various germ.The magnetism of medical stone, be also embodied in the absorption aspect for taste, deodorization is very competent.
(2) soil can be improved.Medical stone is to the activation of water and soil, because medical stone can be stabilized and increased, the physics function of balanced soil, it than other soil improvement agent advantageously.The use of chemical fertilizer, soil improvement agent can be reduced, and can economical, effectively improve soil property, protection of the environment.
(3) various chemical toxicant is removed.Medical stone can also utilize self component to pass through the method ionization toxic substance absorbing, decompose.Released mineral matter also balances mineral substance quantity, and medical stone can give out the requisite various mineral substance of human body in water.Supplement that it is not enough by absorbing unnecessary mineral substance or released mineral matter, medical stone can balance the quantity of mineral substance.Medical stone release various trace elements as: potassium, phosphorus, iron, sulphur, manganese, magnesium etc., these materials play an important role to enzyme and hormonal synthesis.The reason of medical stone release several mineral materials is that it is made up of 24000 Multiple components, and this is the most significant feature of medical stone.
auxiliary materialin (useless bacterium slag, straw powder, sawdust, rice bran), organic matter is very abundant, and nitrogen, phosphorus, potassium nutrition are also containing various trace element, and nutrient is comparatively balanced.Contained by municipal sludge, organic matter does not reach national standard, unbalanced contained by N P and K, adds N P and K, organic content, thus make fertilizer become nutrient equilibrium after interpolation.This material at suitable temperature the most easily and bio-fermentation agent become thoroughly decomposed, a large amount of profitable strains can be produced thus can the organic matter of direct initiation municipal sludge become thoroughly decomposed rapidly.The ventilation property adding material in digest process can make large quantity of moisture evaporate, and mud can be made to become loose.
fluorspar Powder:non-metallic minerals, main component is Calcium Fluoride (Fluorspan), is the main source of industrial fluorine element.Pure fluorite fluorine-containing 48.67%, calcium 51.33%, containing rare earth element.The invasion and attack of calcium energy Antifungi, eliminate too much the produced harm of some ion: as acid soil, calcium can reduce hydrogen ion, aluminum ion; Alkaline soil, calcium can reduce sodium ion.Calcium easily forms insoluble calcium precipitation and fixes in crop, becomes the nutrient that can not shift and utilize once again.Crop calcium deficiency often not soil cause for hypocalcia, mainly because crop is obstructed to the absorption of calcium and transfer, and the disorder occurred.Rare earth element can improve the chlorophyll content of plant, strengthens photosynthesis, promotes root system development, increases root system to nutrition absorption.Rare earth can also promote seed germination, improves rate of emergence, promotes growth of seedling.Except above Main Function, also have and make some crop strengthen ability that is disease-resistant, cold-resistant, drought resisting.
bio-fermentation agent:bio-fermentation agent energy fast decoupled compost is organic, the advantage such as have few, the powerful degrade proteins of addition, fermentation time is short, cost is low, leavening temperature is not limited, effectively can kill the harmful bacteria in fermented product, worm, worm's ovum, grass-seed antibiotic remains etc. of degrading.The features such as breeding is quick, vitality is strong, safety non-toxic.This agent is made up of multiple-microorganism, in application, each quasi-microorganism plays an important role all separately, they will be combined rapidly with surrounding benign strength rapidly, produce antioxidant, remove oxidizing substance, eliminate corrupt and stench, prevention and prohibition pathogenic bacteria, form the good environment being suitable for animal and plant growth; Simultaneously, it also produces a large amount of is easily the benefit materials of animals and plants absorption, as amino acid, organic acid, Polysaccharides, various VITAMIN, various biochemical enzyme, somatomedin, antioxidant, microbiotic and antiviral substance etc., improve the immunologic function of plant, promotion health grows.
the invention has the beneficial effects as follows:the present invention, with humic acid, organic substance, mineral substance main raw material, to be become thoroughly decomposed fermentation through the degree of depth, is equipped with natural mineral matter and multiple amino acids, the multiple biological bacteria of Methionin etc., and the one through the proportioning process for processing of science is green, free of contamination new-type fertilizer.
1. comprehensive nutrition, fertilizer efficiency is lasting: this organic fertilizer contains nitrogen, phosphorus, potassium, and abundant organic matter, the acid of nitrogen base can constantly discharge plant-growth desired nutritional element and hormone by microbial activities.Regulating effect is had to plant-growth.There is promotion root system development, help the absorption of nutritive element, improve chlorophyll content, strengthen photosynthesis, reach rapid long-acting and combine, promote that plant growth is good, reach high and stable yields.
2. improve Soil structure, fertilizer conservation of loosening the soil.A large amount of organic matters, mineral substance, can improve soil physical property, acidifying of keeping soil from packing together, salinization, increase soil patterning, thus make loosing soil, be conducive to preserve moisture and fertility, ventilation and the development of promotion root system, improve biota, make beneficial microorganism have a good living environment.
3. strengthen plant drought resistance against diseases: humic acid, organic matter compete nutrition at edaphophyte root amount reproduction and phytopathogen, thus the growth of Suppressing phytopathogens, reduce pathogenic bacteria quantity; Produce various enzyme, dissolved destruction pathogenic mycetocyte, produce microbiotic and directly suppress or kill phytopathogen.Especially suitably can control the openness of crop page pore, reduce rising, improve crop drought resistance ability.
4. preserve the ecological environment, protection land resources, reduces the consumption of chemical fertilizer, and mineral substance changes heavy metal in soil and harmful flora for a long time in soil.
Nitrogen, phosphorus, potassium, organic matter, trace element are contained by the raw material such as municipal sludge own, useless bacterium slag, straw powder, sawdust, rice bran.It is to evaporate minimizing moisture, stablizing nutrient, kill pernicious bacteria that reaction process adds bio-fermentation agent.Interpolation medical stone powder, Fluorspar Powder are to make contained plurality of heavy metal, pernicious bacteria in municipal sludge do one and thoroughly dispel.Fluorspar Powder it to have unique property be that medical stone powder is unexistent, and Fluorspar Powder cost ratio medical stone powder is cheap, is only 1/3rd of medical stone powder, thus reduces cost, the product price of producing is cheap, high-quality.
This mud is prepared the relative mud of organic fertilizer method and is prepared the preparation method of bio-organic fertilizer simply, and select materials extensively, cost is low, easily controls.Present method also adapts to direct mud make.Select materials simple extensively, low also the control without the need to temperature of cost can High Temperature Sterilization, dual safety, the safe and effective conformance with standard of made fertilizer.
embodiment:
Embodiment 1:
a kind of organic fertilizer produced from sludge generated, described organic fertilizer produced from sludge generated is made up of the raw material of following weight proportion:
Dewatered sludge 70%, medical stone 5%, Fluorspar Powder 5%, rice bran 20%, bio-fermentation agent 0.3%;
its preparation method comprises the steps:
(1) batching process: after the raw material of above-mentioned weight proportion is mixed, water spray, moisture controlled is 45%-65%; As on the low side in pH value after inspection, with unslaked lime, pH is adjusted to about 7-8, mixes thoroughly;
(2) fermentation maturity: place election, summer ventilates, fermentation maturity place is done at shady and cool place; Winter leeward area without shade or indoor carry out, heap temperature when rising to 40 DEG C ~ 70 DEG C, can start overturning, if heap temperature is more than 40 DEG C, then should overturning again, the material of outside and bottom should be ploughed under in heap during overturning.When after lasting overturning 2-4 times, the ordorless peculiar smell of material, shows that fermentation maturity completes;
(3) sieve: the material of powdery can check material to sieve.Bake drying or airing material, moisture controlled≤30%, N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes powdery organic fertilizer;
(4) granulation: by granulation after the pulverizing with granular organic fertilizer of powdery, then through bake drying or airing, moisture controlled is ≤30%, and N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes granular organic fertilizer.
Embodiment 2:
a kind of organic fertilizer produced from sludge generated, described organic fertilizer produced from sludge generated is made up of the raw material of following weight proportion:
Dewatered sludge 50%, medical stone 10%, Fluorspar Powder 20%, straw powder 30%, bio-fermentation agent 0.1%;
its preparation method comprises the steps:
(1) batching process: after the raw material of above-mentioned weight proportion is mixed, water spray, moisture controlled is 45%-65%; As on the low side in pH value after inspection, with unslaked lime, pH is adjusted to about 7-8, mixes thoroughly;
(2) fermentation maturity: place election, summer ventilates, fermentation maturity place is done at shady and cool place; Winter leeward area without shade or indoor carry out, heap temperature when rising to 40 DEG C ~ 70 DEG C, can start overturning, if heap temperature is more than 40 DEG C, then should overturning again, the material of outside and bottom should be ploughed under in heap during overturning.When after lasting overturning 2-4 times, the ordorless peculiar smell of material, shows that fermentation maturity completes;
(3) sieve: the material of powdery can check material to sieve.Bake drying or airing material, moisture controlled≤30%, N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes powdery organic fertilizer;
(4) granulation: by granulation after the pulverizing with granular organic fertilizer of powdery, then through bake drying or airing, moisture controlled is ≤30%, and N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes granular organic fertilizer.
Embodiment 3:
a kind of organic fertilizer produced from sludge generated, described organic fertilizer produced from sludge generated is made up of the raw material of following weight proportion:
Dewatered sludge 60%, medical stone 5%, Fluorspar Powder 10%, useless bacterium slag 25%, bio-fermentation agent 0.2%;
its preparation method comprises the steps:
(1) batching process: after the raw material of above-mentioned weight proportion is mixed, water spray, moisture controlled is 45%-65%; As on the low side in pH value after inspection, with unslaked lime, pH is adjusted to about 7-8, mixes thoroughly;
(2) fermentation maturity: place election, summer ventilates, fermentation maturity place is done at shady and cool place; Winter leeward area without shade or indoor carry out, heap temperature when rising to 40 DEG C ~ 70 DEG C, can start overturning, if heap temperature is more than 40 DEG C, then should overturning again, the material of outside and bottom should be ploughed under in heap during overturning.When after lasting overturning 2-4 times, the ordorless peculiar smell of material, shows that fermentation maturity completes;
(3) sieve: the material of powdery can check material to sieve.Bake drying or airing material, moisture controlled≤30%, N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes powdery organic fertilizer;
(4) granulation: by granulation after the pulverizing with granular organic fertilizer of powdery, then through bake drying or airing, moisture controlled is ≤30%, and N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes granular organic fertilizer.
Claims (2)
1. an organic fertilizer produced from sludge generated, is characterized in that, described organic fertilizer produced from sludge generated is made up of the raw material of following weight proportion:
Dewatered sludge 50%-70%, medical stone 5%-10%, Fluorspar Powder 5%-20%, auxiliary material 20%-30%, bio-fermentation agent 0.1%-0.3%; Each composition weight sum is 100%;
Its preparation method comprises the steps:
(1) batching process: after the raw material of above-mentioned weight proportion is mixed, water spray, moisture controlled is 45%-65%; As on the low side in pH value after inspection, with unslaked lime, pH is adjusted to 7-8, mixes thoroughly;
(2) fermentation maturity: place election, summer ventilates, fermentation maturity place is done at shady and cool place; Winter carries out at leeward area without shade or indoor, and heap temperature when rising to 40 DEG C ~ 70 DEG C, can start overturning, if heap temperature is more than 40 DEG C, then should overturning again, and should the material of outside and bottom be ploughed under in heap during overturning;
When after lasting overturning 2-4 times, the ordorless peculiar smell of material, shows that fermentation maturity completes;
(3) sieve: the material of powdery can be checked and sieve;
Bake drying or airing material, moisture≤30%, N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes powdery organic fertilizer;
(4) granulation: by granulation after the pulverizing with granular organic fertilizer of powdery, then through bake drying or airing, moisture≤30%, N P and K >=5%, organic >=45%, pH value 5.5-8.5, makes granular organic fertilizer.
2. a kind of organic fertilizer produced from sludge generated according to claim 1, is characterized in that, described auxiliary material can be following any one: useless bacterium slag, straw powder, sawdust, rice bran.
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| CN103947326A (en) * | 2014-05-12 | 2014-07-30 | 中山大学 | Method for ionic rare earth mine tailing land improvement and vegetation reclamation |
| KR101620211B1 (en) * | 2014-10-24 | 2016-05-12 | 영남대학교 산학협력단 | Preparing method of environmental fertilizer using sea mud |
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| CN106032338A (en) * | 2015-03-19 | 2016-10-19 | 陈温乐 | Method for rapidly manufacturing organic fertilizer |
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| CN110128223A (en) * | 2019-05-22 | 2019-08-16 | 山东省果树研究所 | A kind of manufacture craft for the multi-element organic fertilizer can inhibit soil aluminium evil |
| CN110563492A (en) * | 2019-08-29 | 2019-12-13 | 广东清大同科环保技术有限公司 | Dried sludge organic fertilizer and preparation method thereof |
| CN110637698A (en) * | 2019-08-29 | 2020-01-03 | 广东清大同科环保技术有限公司 | Organic garden soil prepared from construction waste and municipal sludge |
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