CN104987216A - Sludge carbon-based bio-organic fertilizer and preparation method thereof - Google Patents

Abstract

The invention relates to a sludge carbon-based bio-organic fertilizer and a preparation method thereof. The sludge carbon-based bio-organic fertilizer comprises the following components in percentage by weight: 40 to 45 percent of sludge carbon matrix carrier, 8 to 12 percent of magnesia lime, 7 to 14.5 percent of dry mold-free cow dung, 8 to 13 percent of bone powder, 7 to 11 percent of bentonite, 2 to 5 percent of wood vinegar liquid, 2 to 4 percent of microelement, 0.1 to 0.5 percent of activity factor and 0.5 to 1 percent of probiotic. The preparation method of the ecological fertilizer comprises the following steps: (1) preparing sludge carbon; (2) preparing dry mold-free cow dung; (3) mixing the raw materials according to the percentage by weight; (4) crushing the proportioned materials; (5) adding 2 to 5 percent of wood vinegar liquid and a proper amount of water into the proportioned materials screened in step 4 and performing blending and agitation; (6) performing granulation and drying; (7) packaging. The sludge carbon-based bio-organic fertilizer and the preparation method thereof can effectively solve the problems of influences of heavy metals in soil on crops, soil hardening and soil fertility decrease, can improve soil acidity and alkalinity, are particularly beneficial to the improvement of acidic soil in northern areas, can really realize the effect of no pollution and can also decrease the emission of CO2 and N2O.

Description

A kind of sludge carbon base biological organic fertilizer and preparation method thereof

Technical field

The invention belongs to mud regeneration production technical field, particularly relate to a kind of sludge carbon base biological organic fertilizer and preparation method thereof.

Background technology

The process of current trade effluent adopts activated sludge process mostly, and it has, and initial cost is economized, advantage that treatment effect is good, but it exists a maximum drawback always, and that is exactly can produce a large amount of excess sludges in operational process.Excess sludge containing the hazardous and noxious substances of a great deal of and the organism of non-stabilization, if do not carry out appropriate process and disposal, will cause direct or potential pollution to environment usually.In traditional activated sludge process, the 1kgBOD5 that often degrades (biochemical Oxygen Demand, five-day BOD) can produce the excess sludge of about 15 ~ 100 L, for the treatment of or the expense for the treatment of excess sludge account for sewage place reason is total25% ~ 65% of expense.Along with promulgation and the enforcement of some new ENVIRONMENTAL LAW, all significantly increase, the output of excess sludge will inevitably be caused increasing to the depth & wideth that sewage disposal requires, obviously, the process of mud will become a great problem of environmental area with disposal.At present to process and the disposal of excess sludge, have the problem of validity and economy two aspect, first, there is no a kind of can the effective ways of simultaneously environmentally safe in the same way, conventional mud has agricultural use, landfill, burning and input ocean etc., but these methods of disposal all exist drawback bar none.Content as Heavy Metals in Sludge exceedes the regulation of the highest limitation of agricultural sludge heavy metal usually, especially the fast development of modern industry, Of Heavy Metal Level In Sludge and hazardous and noxious substances is increased, greatly reduces agricultural possibility.In addition, also containing pathogenic agent, parasitic ovum etc. in mud, if agricultural use is improper, serious harm is caused by the health of the mankind.Landfill stabilization easily pollutes underground water, simultaneously a large amount of land occupation.Although incineration disposal can make sludge volume significantly reduce, and can sterilizing, the investment of burning facility and working cost are all larger.Shoreline and coastal waters can be avoided in a short time to be polluted although throw in ocean, its long-term hazards may be very serious, therefore, by most of in the world countryforbidden.Secondly, the fund that various sludge treatment and method of disposal need is huge, and as America and Europe, sludge treatment capital cost accounts for the ratio of sewage work's total capital investment cost up to 60 ~ 70%.Along with the enhancing of people's environmental consciousness, the standard that countries in the world are formulated for mud discharging is more and more stricter, and this also will strengthen disposal costs and the difficulty of mud further.The treatment and disposal of excess sludge not only brings white elephant to sewage work, and becomes each government of statewith the problem that the common people pay close attention to.

1, fertilizer is the grain of farm crop, is the requisite basic means of production in agriculture production.But, the most area of China has made ecological environment of soil, soil physical and chemical property and soil microflora receive destruction in various degree because of long-term application chemical fertilizer, especially simple substance chemical fertilizer is too much used, make Nutrient Elements in Soil serious disproportion, fertility supply capacity declines, and soil compaction aggravates, and rhizosphere soil microorganism dominant population reduces in a large number, and to a certain extent pollution is caused to quality of agricultural product, make product be difficult to reach the requirement of pollution-free food.At present, the new source of manure all by high-tech means, is sought in countries in the world, and wherein charcoal base bio-organic fertilizer is the emphasis of research.Along with the progress of biomass energy source domain and microorganism field science and technology, various countries Agricultural Scientist generally believes, fertilizer to future development that is efficient, compound, namely will should seek one novelcharcoal base biological organic fertilizer, not only by nitrogen, phosphorus, potassium and trace element with the use of, and gac will be combined with microorganism, organic matter, play global advantage, to set up optimum farmland's ecocycle system and crop alimentary combined system, make full use of Soil capabilities, reach and make crop yield increase income best effect.

2, China is in a development country, be again a large agricultural country, relatively other sludge treating methods, the Land_use change of municipal sludge more meets me state of statefeelings, therefore have huge development potentiality in China.According to statistics, by by the end of March, 2014, national city, county add up to build up sewage work 3622, sewage treatment capacity billion cubic meter every day about 1.53.Tsing-Hua University's water policy research centre director Fu Tao predicts, by 2015, national annual urban wastewater treatment firm mud (water ratio 80%) generation that wets will reach 3,359 ten thousand tons.Show in " Chinese specific resistance to filtration Market Report (2013) ", landfill accounting 67% in China's sludge disposal, compost 12%, nearly 18% whereabouts unknown, the mud being equivalent to more than 80% does not obtain harmless treatment.If mud is not effectively addressed, is equivalent to the isolated pollutent of cost flood tide fund and has got back to again in environment, equal white and processed.And regrettably, China is faced with because eighty per cant mud is untreated, the sewage disposal expense of hundreds billion of unit may the difficult situation of " squander ".Meanwhile, containing the abundant nutritive element such as organic matter, nitrogen, phosphorus in mud, it will be a kind of efficient fertilizer if can use, but due to objectionable impuritiess such as the organic pollutants also containing the heavy metal of multiple inequality, pathogenic micro-organism and trace in mud, also difficulty is brought field to the composting of mud.

3, soil is made up of mineral substance, organic matter and microorganism three parts, is the basis of crop growthing development.Soil mineral is the main body of soil material composition, and being the matrix of plant-growth, is again the main source of plant inorganic nutrients.Organic matter is the important substance basis of fertilizer provision from soil, fertilizer conservation, is again the necessary composition forming soil aggregate and keep soil from packing together.Microorganism is the organism of living in soil, is to transform the indispensable active substance of soil fertility.The soil fertility such as soil microorganisms participates in the conversion of soil material and energy directly, the formation Sum decomposition of soil ulmin, nutrients release, N immobilization are formed and growth course.Therefore, in soil, increase quantity of useful microbe, can soil microbial activities be strengthened, thus improve the fertility of soil.Particularly the microorganism active of farm crop rhizosphere soil micro-ecosystem fauna is even more important to plant root nutrition.

3.1 use microbiology class fertilizer at rhizosphere, can increase quantity and the activity of useful mushroom in root layer soil.Effectively can promote the activity of useful mushroom in farm crop rhizosphere soil micro-ecosystem fauna at rhizosphere application of organic fertilizers material, thus increase soil fertility.A large amount of Plant hormones regulators,gibberellins and chtokinin material can be produced in the vital movement process of microorganism in microbial fertilizer in its fermentation and soil, these materials are after contacting with root system of plant, can plant growth be stimulated, regulate crop metabolism, thus produce effect of increasing production.Microorganism in microbial fertilizer is in plant root raised growth, breeding, and form dominant bacteria, suppress and decrease the breeding chance of pathogenic bacteria, the effect also with antagonism pathogenic bacteria had, serves the effect alleviating crop pest.Thus reduce the use of agricultural chemicals, reduce production cost.

3.2 use organic class fertilizer at rhizosphere, and owing to containing abundant organic matter, a certain amount of available nitrogen, phosphorus, potassium and trace element in organic fertilizer, nutrient is more comprehensive.Organic matter is wherein by after microbial activities, and constantly can discharge the nutritive element needed for plant-growth, thus fertilizer efficiency is lasting.Abundant organic matter can also improve soil physical property, increases soil aggregate, thus makes loosing soil, reduces soil compaction, is conducive to water conservation, fertilizer conservation, ventilation and the development of promotion root system, for farm crop provide the comfortable Chang Huan Base-on-environment of Sheng.

3.3 use biomass charcoal class fertilizer at rhizosphere, because the biomass charcoal in biomass charcoal base manure material is the class height aromatize infusibility solid matter produced through pyrolysis charring when anoxic wholly or in part by plant biomass.The elementary composition of biomass charcoal mainly comprises carbon (generally up to more than 60%), hydrogen, oxygen etc., is secondly ash content (comprising potassium, calcium, sodium, magnesium, silicon etc.).Biomass charcoal pore texture is flourishing, specific surface area is huge, also there is a large amount of surface negative charges and the characteristic of high charge density simultaneously, mineral ion (as Cu2+, Zn2+, Pb2+, Hg2+ and NO3-etc.) in fixing water, soil or settling and polarity or nonpolar organic compound can be adsorbed.Biomass charcoal, as an effective supplementary means of sustainable soil management, improves soil physico-chemical property and biological property to improve the output of crop mainly through following three kinds of modes.

3.3.1 the adsorptivity of biomass charcoal is strong especially, and it is as sponge, plays the effect [20] keeping moisture, air and solution in soil.Research finds, biomass charcoal in soil strengthens cationic absorption by the cation exchange capacity improving soil, this is mainly because its surface part can be formed carbonyl, phenolic group and quinonyl by mild oxidation, result of study shows the charcoal adding 2% (w/w) in soil, within 67 days, find the pH value of soil afterwards, the content of organic carbon content and Ca, K, Mn, P obviously raises, illustrate that charcoal has very strong adsorptivity to some elements (as Ca, K, Mn, P).Biomass charcoal can also adsorb NO3-, NH3, reduces the ammonia volatilization of soil, improves the fertilizer-preserving ability of soil.Adding of biomass charcoal also can strengthen fabaceous biological nitrogen fixation ability, there are some researches show that applying biomass charcoal can increase the absorption of soil to NH3 and NH4+, reduces the discharge of N2O and the loss of NO3-, thus affects nitrogen cycle.Under physical environment, biomass charcoal adds in forest soil as the residuum that a kind of non-fully is burnt, and edatope can improve.

3.3.2 the structure that biomass charcoal is loose porous and huge surface-area are that the microbial growth of special monoid provides hotbed, thus promote the circulation of soil nutrient elements.Research shows the weakly alkaline of biomass charcoal, porousness and the feature of moisture and air can be kept to be that the gathering of microorganism provides condition.Research finds that there is slightly biological using the sole carbon source of black carbon as existence, can explanation that soil can promote a certain monoid microbial growth after adding biomass charcoal, thus can increase soil fertility chronically.The interpolation of biomass charcoal can promote mycorrhizal fungi infecting plant root usually, increases the abundance of mycorrhizal fungi.

3.3.3 biomass charcoal is not only the modifying agent of soil, and can play the effect of fertilizer.

3.3.4 use biomass charcoal can not only improve soil physico-chemical property, increase soil fertility, can also Adsorption of Heavy Metals (as cadmium, arsenic etc.), reduce plant to the absorption of pollutent, reach the effect of environment remediation to a certain extent.Good adsorption effect is had to Hg, adsorption machine by research sludge carbon reason is maincomprise the acting in conjunction that physical adsorption, chemisorption, chemical reaction and three combine.The biomass charcoal itself produced through high temperature carbonization is weakly alkaline, and after soil adds biomass charcoal, pH value raises, and causes soil negative charge to increase, causes the absorption of soil heavy metal also to increase, and then reduce the bioavailability of heavy metal.In addition, because biomass charcoal itself is containing nutrient elements such as nitrogen, phosphorus, potassium, on the one hand, the existence of these elements and heavy metal are formed to be competed, and also promotes plant-growth on the other hand.Soil after simultaneously adding biomass charcoal also shows the absorption to pesticide residue, thus reduces the pollution to underground water.

Summary of the invention

The present invention take sludge carbon as the biological activity Eco-fertilizer of matrix for solving in known technology the technical problem that exists and providing a kind of, effectively can solve heavy metal in soil and pollute the problem that the impact of crop, soil compaction, soil fertility are reduced, also soil acidity or alkalinity can be improved simultaneously, especially the improvement of northern acid soil is benefited, really accomplish pollution-free, the sludge carbon base biological organic fertilizer of the quantity discharged of CO2 and N2O can also be reduced simultaneously.

The technical scheme that the present invention takes for the technical problem existed in solution known technology is:

A kind of sludge carbon base biological organic fertilizer, is characterized in that: comprise sludge carbon, magnesia lime, drying without mould cow dung, bone meal, wilkinite, pyroligneous liquor, trace element, active factor and useful microbial inoculum;

By weight above-mentioned, sludge carbon accounts for 40-45%, and magnesia lime accounts for 8%-12%, and drying accounts for 9%-16.5% without mould cow dung, bone meal accounts for 5%-10%, and wilkinite accounts for 6%-11%, and pyroligneous liquor accounts for 2%-5%, trace element accounts for 2%-4%, and active factor accounts for 0.1%-0.5%, and organic microbial inoculum accounts for 0.5%-1% and prepares burden.

A preparation method for sludge carbon base biological organic fertilizer, the production stage of described sludge carbon base biological organic fertilizer is:

1), the preparation of sludge carbon: sludge carbon is obtained by charing by mud;

2), the dry preparation without mould cow dung: be add microbiological waste starter at cattle manure, add bone meal simultaneously and ferment together, fermentation time is 3 ~ 7 days;

3), prepare burden: sludge carbon, magnesia lime, drying are carried out mixing according to parts by weight according to claim 1 without mould cow dung, bone meal, wilkinite, trace element, active factor and useful microbial inoculum;

4), pulverize, sieve: above-mentioned batching is pulverized, is sieved by 60 ~ 80 mesh sieves after pulverizing;

5), be uniformly mixed: the batching of step 4 being sieved out adds pyroligneous liquor and the appropriate water mediation stirring of 2% ~ 5%;

6), granulation: carry out granulation by granulating equipment, particle diameter at 3 ~ 5mm, then by dry under the hot blast of 105 DEG C, content≤20% of free-water after dry;

7), be cooled to less than 28 DEG C after drying at ambient temperature to pack.

The advantage that the present invention has and positively effect are: the biological organic fertilizer taking sludge carbon as matrix, effectively can solve the problem of the sludge treatment difficulty of mud factory, the production of sludge carbon base biological organic fertilizer also effectively can solve the problem that heavy metal in soil pollutes impact on crop, soil compaction, soil fertility reduce, also soil acidity or alkalinity can be improved simultaneously, especially the improvement of northern acid soil is benefited, really accomplish pollution-free, the quantity discharged of CO2 and N2O can also be reduced simultaneously.The unit weight that can improve the soil organism, increase the voidage of soil, reduce soil, improve the ability of soil water-reataining fertilizer-keeping simultaneously and improve saltings, supplement the nutriment in soil, pathogenic bacterium in purification soil, improve the disease resistance of farm crop, the residuals of soil chemistry agricultural chemicals and chemical fertilizer can also be decomposed simultaneously.Heavy metal (mercury, chromium, cadmium, lead and metalloid arsenic) in Absorbable rod soil, reaches no pollution zero release, purification crop growth environment, environmental protection.Promote plant growth, improve output, improve sugar degree, improve the effects such as product quality.Be current development natural agriculture, green agriculture, Organic farming, Appropriate application natural resources, save energy, environment purification and production green non-pollution food etc. have important effect, are the new ways of China's agricultural development.

Embodiment

For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples:

Embodiment 1, a kind of sludge carbon base biological organic fertilizer, selects sludge carbon as medium carrier, its weight part 40%; Magnesia lime 12%, drying are without mould cow dung 16.5, bone meal 10, wilkinite 11, pyroligneous liquor 5, trace element 4, active factor 0.5 and useful microbial inoculum 1.This kind of fertilizer, is applicable to acid soil.

By weight above-mentioned, sludge carbon accounts for 40-45%, and magnesia lime accounts for 8%-12%, and drying accounts for 9%-16.5% without mould cow dung, bone meal accounts for 5%-10%, and wilkinite accounts for 6%-11%, and pyroligneous liquor accounts for 2%-5%, trace element accounts for 2%-4%, and active factor accounts for 0.1%-0.5%, and organic microbial inoculum accounts for 0.5%-1% and prepares burden.

Embodiment 2, a kind of sludge carbon base biological organic fertilizer, selects sludge carbon as medium carrier, its weight part 42%; Magnesia lime 10%, drying are without mould cow dung 14.5, bone meal 12, wilkinite 11, pyroligneous liquor 5, trace element 4, active factor 0.5 and useful microbial inoculum 1.This kind of fertilizer, is applicable to micro-lean soil.

Embodiment 3, a kind of sludge carbon base biological organic fertilizer, selects sludge carbon as medium carrier, its weight part 45%; Magnesia lime 9%, drying are without mould cow dung 15.5, bone meal 12, wilkinite 10, pyroligneous liquor 5, trace element 2, active factor 0.5 and useful microbial inoculum 1.This kind of fertilizer, is applicable to alkaline soil.

The technical indicator of the charcoal based bioactive Eco-fertilizer in above-described embodiment meets biological organic fertilizer newest standards completely, refers to table 1extremely table 3;

table 1it is biological organic fertilizer organic content;

Organic content (with butt note)/(%) >=30

Total nutrient (nitrogen+Vanadium Pentoxide in FLAKES+potassium oxide) content (with butt note)/(%) >=4

Moisture (free-water) content/(%)≤20

Potential of hydrogen PH 5.5-8.0

table 2it is the requirement of biological organic fertilizer technical target of the product.

Project Technical index

Living bacteria count (cfu), hundred million/g >=0.20

Organic (in butt), % >=40.0

Moisture, %≤30.0

PH value 5.5 ~ 8.5

Excrement colibacillus group number, individual/g≤100

Induced worm egg death rate, % >=95

Validity period, the moon >=6

table 3biological organic fertilizer product 5 heavy metal species limitation technical requirements unit: mg/kg

Project limit index

Total arsenic (As) (in butt)≤15

Total cadmium (Cd) (in butt)≤3

Total lead (Pb) (in butt)≤50

Total chromium (Cr) (in butt)≤150

Total mercury (Hg) (in butt)≤2

table 4it is pollutant catabolic gene standard unit in agricultural sludge: mg/kg dewatered sludge

The highest permissible level of project

On acid soil

(PH < 6.5) is in neutrality and alkaline soil

（PH≥6.5）

Cadmium and compound (in Cd) 5 20 thereof

Mercury and mercuric compounds (in Hg) 6 15

Lead and compound (in Pb) 30 1000 thereof

Chromium and compound (in Cr) 600 1000

Arsenic and compound (in As) 75 75 thereof

Boron and compound (in water-soluble B) 150 150 thereof

Mineral oil 3,000 3000

Benzo (a) pyrene 33

Copper and compound (in Cu) 250 500 thereof

Zinc and compound (in Zn) 500 1000 thereof

Nickel and compound (in Ni) 100 200 thereof

The control criterion of chromium is applicable to generally few containing sexavalent chrome various mud with agricultural value, is not suitable for the settling containing a large amount of chromic industrial residues or some chemical plant

With soil beneficial microorganism (include fixed nitrogen, phosphorus decomposing, potassium decomposing effect and stimulate the mushroom of plant growth disease-resistant function) and organic and trace element for the core active source of manure, think sludge carbon medium carrier composition bio-organic fertilizer.

Wherein beneficial microorganism part can according to different areas, and different habitant condition is suited measures to local conditions assembly.Such as: the general nitrogen stress of China's soil, be namely core with vinelandii, lack phosphorus, potassium deficiency area with addition of phosphorus bacteria, B. mucilaginocus, the area having soil germ to cause harm can add the special fertilizer that disease-resistant vinelandii etc. make multiple formulation.

Organic substance part can suit measures to local conditions to select different material.Use the soil compaction area of chemical fertilizer all the year round, can select and be rich in the organic organic matter such as peat soil (turfy soil), pond sludge, river silt, agricultural byproducts waste, microbiobacterial agent, reodorant, promotor, stablizer, synergistic agent etc. are added after High Temperature Sterilization, the principle that rests on a scientific basis is filled a prescription, after fermentation propagation, make fertilizer.

Sludge carbon medium carrier part, adopts sludge carbon, and sludge carbon heavy metal has good adsorption effect, adsorption machine simultaneously reason is maincomprise the acting in conjunction that physical adsorption, chemisorption, chemical reaction and three combine.

Sludge carbon base biological organic fertilizer, also can according to different habitant condition with addition of a small amount of trace element except sludge carbon, organic matter and microorganism.Corresponding trace element is added as the soil for the trace element such as scarce zinc, molybdenum.Add the trace element of bio-feritlizer, owing to fermenting with organic fertilizer resource and agent complex, can not cause fertilizer residue public hazards, this kind of fertilizer is not only suitable for general farmland fertilization, is more suitable for " ecological food " production ecological fertilizer.

Active factor is a kind of vegetable cell activating agent, the cuticular permeability in blade face can be increased, improve the infiltration rate of nutritive element and the utilization ratio of leaf dressing, the breathing of blade can be increased, expand pore, fertilizer is made to enter pore more, faster, improve fertilizer efficiency, can promote that plant leaf becomes exhibition, becomes large, thickening, increase blade to the contact surface of nutritive element, contact surface is larger, blade to nutritive element can yield just higher.Aim, active factor and fertilizer composite after, Plant To Nutrient element absorption is good, instant effect, and simultaneously can remove antagonistic action, detest inorganic disease, regulate nutritive equilibrium, fertilizer efficiency doubles.Crop root can be made flourishing, blade plump dark green glossy, stem thick bar strong, Fruit, speed fast, bright in colour, listing ahead of time.

Useful microbial inoculum contains a large amount of beneficial microorganism, in profitable strain and soil, the symbiosis such as actinomycetes is grown altogether, form good crop growth environment, improve the fertile matter of soil, thoroughly improve soil property, can Organic residues be decomposed, form agron, improve Soil structure and physicochemical character, can be available nutrient by nonabsorbable for plant Substance Transformation, utilize for plant absorption.Improvement Soil structure, increases soil fertility, reduces chemical fertilizer, Pesticide use amount year by year.The test of relevant R&D institution of China shows: compared with chemical fertilizer; EM beneficial microorganism+excrement makes soil effective K improve 5%; rapid available phosphorus improves 31.2%; full nitrogen improves 15.5%; and soil is planted more fertile and more fertile; useful animalcule (earthworm etc.) doubles, and infiltration, water conservation, venting capability strengthen, and promote pellet.Be used in conjunction three, five years, after soil ecology, physics, chemical property thoroughly improve, can zero tillage be realized.

Magnesia lime is the calcium carbonate fertilizer containing magnesium, the long-acting modifying agent of acid soil.Alkaline components content more than 60%, solubility magnesia content more than 30%.For the soil Mg supplementation content that Mg content is few; In and acid soil, contribute to pellet formation; Be conducive to the growth of fruit, improve output, in addition, crop good in color, smell and taste can be gathered in the crops; Owing to helping phosphoric acid to absorb, make the color of plant flowers, leaf all very bright-coloured; Decompose the organism in soil, promote the inorganization of nitrogen, promote soil vitality.

Drying contains crude protein 10%--20% without in mould cow dung, and crude fat 1%--3%, nitrogen-free extract 20%--30%, robust fibre 15%--30%, therefore has very high nutrient.Research finds that fertilizer efficiency is good, safe and convenient to use after dry cow dung by fermentation, can not cause to burn root and burn seedling phenomenon, can also culture fertility, improves chemical fertilizer utilization ratio etc., can become the organic fertilizer product of high-quality.It also has the fluffy soil of energy, improves hardening soil situation, the effects such as the trace element in chelating soil.

Be rich in nitrogen, phosphorus, potassium in bone meal, their per-cent is 4:22.5:0.2, and containing 24% calcium in another bone meal, be mixed in compost or barnyard manure and use after fermentation, can improve fertilizer efficiency, be good crop fertilizer.

Wilkinite is a kind of inorganic mineral/organic ammonium mixture, take wilkinite as raw material, utilize the lamellar structure of montmorillonite in wilkinite and swellingly in water or organic solvent can be dispersed into colloid clay characteristic, inserting organic insulating covering agent by ion exchange technique and make.Organobentonite can form gel in all kinds of organic solvent, oils, liquid resin, has good thickening property, thixotropy, suspension stability, high-temperature stability, oilness, film-forming properties, water tolerance and chemical stability.

Pyroligneous liquor is the natural marrow extracted from biological material, includes the 200 gas chromatography matter such as acids, alcohols, phenols, ketone, is a kind of component complexity, diverse in function and metastable system material.Due to the natural overall equilbrium mechanism of action of micro substance active factor numerous in wood vinegar, show mysterious usefulness in actual applications: wood vinegar has sterilization, controls worm, disease-resistant, improve water and soil beneficial microorganism active, promote the effects such as plant growth, use as green nuisance free pesticide, micro-fertilizer, crop yield and quality can be improved.

The invention has the beneficial effects as follows:

The unit weight that can improve the soil organism, increase the voidage of soil, reduce soil, improve the ability of soil water-reataining fertilizer-keeping simultaneously and improve saltings, supplement the nutriment in soil, pathogenic bacterium in purification soil, improve the disease resistance of farm crop, the residuals of soil chemistry agricultural chemicals and chemical fertilizer can also be decomposed simultaneously.Heavy metal (mercury, chromium, cadmium, lead and metalloid arsenic) in Absorbable rod soil, reaches no pollution zero release, purification crop growth environment, environmental protection.Promote plant growth, improve output, improve sugar degree, improve the effects such as product quality.Be current development natural agriculture, green agriculture, Organic farming, Appropriate application natural resources, save energy, environment purification and production green non-pollution food etc. have important effect, are the new ways of China's agricultural development.

The preparation method of above-mentioned charcoal based bioactive Eco-fertilizer, its production stage is:

1), the preparation of sludge carbon: sludge carbon is obtained by charing by biomass straw;

Such as adopt a kind of equipment utilizing autoclave microorganism to remove heavy metal in biomass sludge, comprise mud diluter, autoclave bioleaching reactor, separator; Be communicated with sludge carrier pipe between mud diluter with autoclave biomass leaching reactor, sludge carrier pipe installs sludge delivery pump; Mud discharge port connects separator by transport pipe, and separator connects separated product treater respectively, comprises substrate treater, sludge dewatering device and landfill device; The isolated sewage transport of sludge dewatering device is to apparatus for treating sewage, and the mud that sludge dewatering device is separated is transported to sludge carbonization device; Above-mentioned apparatus for treating sewage connects mud diluter by transfer line.

Also a kind of equipment utilizing auger type microorganism to remove heavy metal in biomass sludge be can adopt, mud diluter, auger type bioleaching reactor, separator comprised; Be communicated with sludge carrier pipe between mud diluter with auger type bioleaching reactor, sludge carrier pipe installs sludge delivery pump; Mud discharge port connects separator by transport pipe, and separator connects separated product treater respectively, comprises substrate treater, sludge dewatering device and landfill device; The isolated sewage transport of sludge dewatering device is to apparatus for treating sewage, and the mud that sludge dewatering device is separated is transported to sludge carbonization device; Above-mentioned apparatus for treating sewage connects mud diluter by transfer line.Adopt technique scheme, improve the utilization of mud, and combine with sewage work during the course and do not cause secondary pollution, recycled with effective removal heavy metal or utilize, solve such as the following technological problems, reach the object of biomass sludge recycling.

2), the dry preparation without mould cow dung: be add microbiological waste starter at cattle manure, add bone meal simultaneously and ferment together, fermentation time is 3 ~ 7 days;

3), prepare burden: sludge carbon, magnesia lime, drying are carried out mixing according to parts by weight according to claim 1 without mould cow dung, bone meal, wilkinite, trace element, active factor and useful microbial inoculum;

4), pulverize, sieve: above-mentioned batching is pulverized, is sieved by 60 ~ 80 mesh sieves after pulverizing;

5), be uniformly mixed: the batching of step 4 being sieved out adds pyroligneous liquor and the appropriate water mediation stirring of 2% ~ 5%;

6), granulation: carry out granulation by granulating equipment, particle diameter, then will be dry under the hot blast of 80 ~ 105 DEG C at 3 ~ 5mm, content≤20% of free-water after dry;

7), be cooled to less than 28 DEG C after drying at ambient temperature to pack.

The above is only to preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solution of the present invention.

Claims (2)

1. a sludge carbon base biological organic fertilizer, is characterized in that: comprise sludge carbon, magnesia lime, drying without mould cow dung, bone meal, wilkinite, pyroligneous liquor, trace element, active factor and useful microbial inoculum;

Said components by weight, sludge carbon accounts for 40-45%, magnesia lime accounts for 8%-12%, drying accounts for 9%-16.5% without mould cow dung, and bone meal accounts for 5%-10%, and wilkinite accounts for 6%-11%, pyroligneous liquor accounts for 2%-5%, trace element accounts for 2%-4%, and active factor accounts for 0.1%-0.5%, and organic microbial inoculum accounts for 0.5%-1% and prepares burden.

2. a preparation method for sludge carbon base biological organic fertilizer as claimed in claim 1, is characterized in that: its production stage is:

1), the preparation of sludge carbon: sludge carbon is obtained by charing by mud;

2), the dry preparation without mould cow dung: be add microbiological waste starter at cattle manure, add bone meal simultaneously and ferment together, fermentation time is 3 ~ 7 days;

3), prepare burden: sludge carbon, magnesia lime, drying are carried out mixing according to parts by weight according to claim 1 without mould cow dung, bone meal, wilkinite, trace element, active factor and useful microbial inoculum;

4), pulverize, sieve: above-mentioned batching is pulverized, is sieved by 60 ~ 80 mesh sieves after pulverizing;

5), be uniformly mixed: the batching of step 4 being sieved out adds pyroligneous liquor and the appropriate water mediation stirring of 2% ~ 5%;

6), granulation: carry out granulation by granulating equipment, particle diameter at 3 ~ 5mm, then by dry under the hot blast of 105 DEG C, content≤20% of free-water after dry;

7), be cooled to less than 28 DEG C after drying at ambient temperature to pack.