CN101759450B - Circle application of waste condensate water during pulping with ammonium sulfite method - Google Patents
Circle application of waste condensate water during pulping with ammonium sulfite method Download PDFInfo
- Publication number
- CN101759450B CN101759450B CN200810171528XA CN200810171528A CN101759450B CN 101759450 B CN101759450 B CN 101759450B CN 200810171528X A CN200810171528X A CN 200810171528XA CN 200810171528 A CN200810171528 A CN 200810171528A CN 101759450 B CN101759450 B CN 101759450B
- Authority
- CN
- China
- Prior art keywords
- temperature
- organic
- foul condensate
- product
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Fertilizers (AREA)
Abstract
The invention provides organic compost, which comprises 10-50 parts by weight of organic matter, 5-20 parts by weight of humic acid, 0.5-2.0 parts by weight of full nitrogen, 1.0-2.0 parts by weight of full potassium and 0.1-0.5 parts by weight of full phosphorus. The organic compost is prepared by mixing and fermenting heavily-polluted condensate water, crop straws, various plants or byproducts generated by preparing materials during making papers with ammonium sulfite method. The whole preparation technology is simple, wherein the heavily-polluted condensate water generated during making the papers and the crop straws are used for preparing organic fertilizer, the organic fertilizer is reused for the growth of crops, and the straws can be used for the paper-making industry, therefore, the technology is a positive cycle for the sustainable development of the industrial production. The organic compost can reduce the phenomenon of the hardening of soil, improves the structure of soil grains, effectively promote the roots to grow, obviously increase the amount and the thickness of the roots, stimulate the growing development of the crops, enhance the stress resistance performance of the corps, and improve the quality of farm produces, etc.
Description
Technical field
The present invention relates to a kind of method of waste liquid recycle, relate more specifically to the circulation utilization method of pulping with ammonium sulfite method process waste liquid.
Background technology
Use in a large number chemical fertilizer owing to pursuing agricultural year in the modern agriculture plantation, very good of the action effect of chemical fertilizer when just starting, but along with the consumption of chemical fertilizer constantly increases, finding in soil does not almost have the organic-biological of living, this is to cause soil nitrification due to moisture content could be kept and maintain to the soil knot tying normal infiltration, organism can't be survived, and soil has originally lost Balance of nature, for agriculture production from now on causes totally unfavorable consequence.
In recent years, organic fertilizer becomes the first-selected fertilizer of farm crop, and the performance that organic fertilizer can improve soil comprehensively gets the nod.At present, the main raw material of industrial production fertilizer is peat, oil cake and municipal wastes etc.Peat, the oil cake places of origin of raw materials and reserves are restricted, can not promote on a large scale, but municipal wastes is raw material production organic fertilizer and environment purification can produce fertilizer again, but in the organic fertilizer that municipal wastes is produced, the concentration of organic matter is very low, and fertilizer is not ideal enough.
The formula that discloses a kind of multielement organic fertilizer in patent ZL98124984.1 is, the peat composed of rotten mosses 40% that contains organic matter >=20%, humic acid >=15%, the soya-bean cake 30% of nitrogenous >=3%, the bone meal 15% of phosphorous >=4%, containing the plant ash 10% of potassium >=3%, kaolin or rare earth 4%, zeolite 1%.The preparation method is by after raw material pulverizing, the peat composed of rotten mosses, soya-bean cake, bone meal and plant ash powder are erupted to ferment through heat, material after fermentation and kaolin or rare earth fully mix in proportion, mixed material carries out granulation, after zeolite powder water furnishing zeolite slurry, by above-mentioned granule coating, the fertilizer of wrapping is dried and is got final product.
Patent ZL99814786.9 discloses a kind humic acid organic fertilizer material, C:N=9～the 15:1 of this fertilizer, brown coal are suspended in pH > 9～12 dissolve containing its part brown coal in aqueous ammonia medium, in temperature, be by the brown coal oxidation under 20～100 ℃ and normal pressure, C:N=9～the 15:1 of gained organic fertilizer, nitrogen content reaches 6%.
Patent application 200710066082.X discloses a kind of organic fertilizer, adopts the discarded scrap stock of blue-green algae mud and cigarette factory and the low Tobacco roasting machinery that waits to stir, and pile and seal at ambient temperature, spontaneous fermentation 10～20 days, drying, obtain the organic fertilizer product.
In the raw material type that above-mentioned organic fertilizer is used, and the price comparison of some raw material is high, sometimes also needs heating, and preparation technology's more complicated makes the cost of this organic fertilizer of preparation strengthen.
Utilization to stalk, to the utilization of agricultural crop straw, be particularly mainly also field of plant ash as fertilizer sources after burning, this method can not take full advantage of the effective constituent of stalk, organic whole burned wastes, simultaneously, burning also causes the detrimentally affects such as topsoil.Agricultural crop straw is very feasible as the raw material of organic fertilizer, the various cereal of plantation can provide 1,700,000,000 tons of stalks every year in the world, wherein most of undressed utilization, approximately 500,000,000 tons of the agricultural crop straws in China every year, wherein, the some crops stalk is made feed, and a small amount of cotton stalk is for cellulosic production, the part crop material is as the raw material of papermaking, and most of agricultural crop straw is not fully used.So rationally utilizing of stalk is extremely important.
Patent application 200310115156.6 discloses a kind of method of utilizing agricultural stalk to prepare organic fertilizer, be chopped in the long base-material of 20～30cm and add far infrared catalyzer and soil soil at agricultural stalk, the auxiliary material such as ight soil and water, be 60～70 ℃ in temperature biochemical reaction occurs, after no longer rising, temperature stirs cooling, stack reaction and make organic fertilizer in 21～39 days to room temperature, the component of described far infrared catalyzer is silicon-dioxide, titanium dioxide, aluminum oxide, ferric oxide, magnesium oxide, any three kinds of combination of components of the component such as calcium oxide or manganese oxide, raw material is through mixing, ball milling, sieve, synthetic, dry and made catalyst mixture through heating in 6～24 hours under 1000～1450 ℃ of high temperature.
Patent application 200510025464.9 discloses a kind of method of utilizing stalk to produce organic fertilizer, that stalk, animal excrement, sal epsom, molasses, bacterial classification and water after pulverizing are mixed, the stacking fermentation, leavening temperature is 10～35 ℃, fermentation time is 10～20 days, and fermenting to the mass content of water in fermented product is 2～8% to obtain organic fertilizer.
Patent application 200610012804.9 discloses the technique of utilizing papermaking wastewater and agricultural crop straw to make fertilizer, comprise the steps: (1) papermaking wastewater (claiming again black liquid) and stalk Hybrid Heating, pressure cooking, 900～1100 kilograms of papermaking wastewaters and 700 kilogram of 60 purpose straw powder are mixed, send in rotary spherical digester and heat, make pressure reach 5～8 normal atmosphere, keep 4～6 hours, the slaking straw powder, straw powder also can replace with weeds.(2) the stalk mixture after slaking being added to 4～10 kilograms of the vitriol oils, is till the mixture material reaches neutrality.(3) mixture after neutralization is added to yeast and enzyme, the mixture be adjusted into after neutrality is forwarded in fermentation vat, amount by every cubic metre of 15-25 kilogram adds yeast powder, reach 1～2 kilogram of stalk lytic enzyme, mixing and stirring secondary fermentation 5～7 days, the stalk lytic enzyme is called again cellulolytic enzyme.Carry out afterwards the quality of phosphatization, ammonium, potassium raising fertilizer.
Prepared in the method for organic fertilizer by the above-mentioned agricultural crop straw that utilizes, the kind that raw material is used is a lot, and its preparation technology is very complicated, and relatively, some need to heat or pressure treatment required condition, to equipment require highly, cause the cost for preparing organic fertilizer to strengthen.
Stalk is as the raw material of papermaking, use inferior ammonia pulping, obtain black liquor in the shove process, a part of ammonia that black liquor produces in when concentrated is along with water vapor overflows, become nitrogenous heavy foul condensate after cooling, this part waste liquid directly discharge can cause environmental pollution, and in melting process, stalk produces a large amount of by products simultaneously.
The processes such as patent application 98110161.5 discloses complex treatment process for waste water of paper making ammonium salt process, and the black liquor process specifically produced in the shove process is concentrated have prepared solid composite fertilizer.But the waste water produced when preparation composite fertilizer is not further recycled again, this part direct discharging of waste water, in environment, to environment, has not caused the very large waste of resource because have to re-use simultaneously yet.
Above-mentioned defect in view of prior art, the present invention makes by stalk nitrogenous waste liquid that paper making raw material produces, and fully re-using and stalk or the byproduct comprehensive utilization while getting the raw materials ready prepare a kind of organic compost of growing for agriculture and forestry plant, both solved problem of environmental pollution, produce again the fertilizer favourable to farm-forestry crop, it is turned waste into wealth.
Summary of the invention
An object of the present invention is to provide a kind of organic compost, this organic compost can be used in agricultural and forestry production, effectively increases organic content, significantly increases root quantity and the rugosity of agriculture and forestry plant simultaneously, obviously promotes the agriculture and forestry plant growth, increases stress resistance of plant.
Specifically, the invention provides a kind of organic compost, it comprises following feed composition: the by product or its two or more mixture that when crop by-product, organic waste or grass pulp are got the raw materials ready, produce; With heavy foul condensate, the by product produced when described crop by-product, organic waste or grass pulp are got the raw materials ready or its two or more mixture are 15～30:1 with the carbon of the mixture obtained after heavy foul condensate mixes mutually and the mass ratio of nitrogen, and it is alkaline that pH is.
Preferably, the temperature of heavy foul condensate is that 25～70 ℃, nitrogenous mass percent are 0.05%～0.5%.
Another object of the present invention provides a kind of method of recycle of heavy foul condensate, the method is the cycle applications of the heavy foul condensate that produces in inferior ammonia pulping process, this recycling method has been eliminated in the pulping process and has been produced the pollution of waste condensate water to environment, its re-using is prepared to fertilizer or matrix, it is turned waste into wealth.
Specifically, the method comprises the steps:
(1) concentrated producing black liquor in the pulping with ammonium sulfite method process, obtained heavy foul condensate;
(2) one of by product that heavy foul condensate produces when getting the raw materials ready in crop by-product or organic waste or grass pulping process or its mix phase and mix, and utilization weighs the waste heat of foul condensate and contained nitrogen ferments and obtains fertilizer or matrix its mixture.
Preferably, the temperature of heavy foul condensate is that 25～70 ℃, nitrogenous mass percent are 0.05%～0.5%.
A kind of organic compost provided by the invention comprises following composition and mass ratio:
Organic 10-50 weight parts
Humic acid 5-20 weight parts
Full nitrogen 0.5-2.0 weight parts
Full potassium 1.0-2.0 weight parts
Full phosphorus 0.1-0.5 weight part;
It is preferred:
Organic 20-30 weight parts
Humic acid 10-20 weight parts
Full nitrogen 1.0-1.5 weight parts
Full potassium 1.0-1.5 weight parts
Full phosphorus 0.1-0.3 weight part.
Organic compost refers to the fertilizer of the various bioelements of energy supply of long duration crop.
Described organic compost is that one of byproduct of producing while getting the raw materials ready in crop by-product or organic waste or grass pulping process or its mixture mix through fermentation and are prepared from the weight foul condensate, before fermentation, in mixture, the mass ratio of carbon and nitrogen is 15～30:1, is alkaline state; Preferred pH=9.5～10.
Can add as required appropriate containing ammoniacal liquor to meet the mass ratio of described carbon and nitrogen, the carbon of farm crop as composting material commonly used and the mass ratio of nitrogen can be with reference to " the biogas development handbook is with finding in book, and the carbon-nitrogen ratio of organic waste also can be found in books such as " municipal solid waste management ".According to carbon-nitrogen ratio and the gross weight of the raw material of the compost of selecting and can calculate the quality that lacks nitrogen, can draw the amount of the ammoniacal liquor that need to add, under the adjusting of ammoniacal liquor, make the mass ratio of carbon and nitrogen in last composting material mixture be controlled at 15～30:1.
In the present invention, described heavy foul condensate comprises the water of condensation produced in ammonium salt process Black Liquor Concentration process, and heavy foul condensate can be adjusted with the mixture of other nitrogenous ammoniacal liquor the carbon-nitrogen mass ratio of composting material mixture.
The temperature in described when fermentation between normal temperature to 70 ℃, preferably 55～60 ℃.
Its foul condensate of preferably attaching most importance to, the nitrogenous mass percent of described heavy foul condensate is 0.05%-0.5%.
The pulping with ammonium sulfite method process comprises to be got the raw materials ready, boiling, shove, washs, discongests and oxygen delignification, the heavy foul condensate that the black liquor produced in the shove process forms in concentration process, it is characterized in that, one of byproduct that heavy foul condensate produces when getting the raw materials ready in crop by-product or organic waste or grass pulping process or its mix the phase mixing, fermented, drop to while higher than envrionment temperature and less than or equal to the mass ratio of 40 ℃, pH=6.5～8.5 and carbon and nitrogen, being 15～25:1 and fermented at leavening temperature, obtain the leavened prod organic compost.
Described simmer down to evaporation concentration.
Contain trace copper, zinc, iron and manganese in described organic compost.
The pH of described organic compost is 6.5-8.5.
Organic compost provided by the invention contains 5%-20% humic acid, and the elements such as humic acid main component carbon containing, hydrogen and nitrogen, also contain methoxyl group isoreactivity group, can promote farm crop absorbing nitrogen, phosphorus or potassium element; The improvement soil physical and chemical property, stimulate crop growth, strengthens the farm crop anti-adversity, improves the several functions such as quality of agricultural product.
The total porosity of described organic compost is 40～60, and they are preferably 45～55 years old.
The ventilating slit of described organic compost is 30～50, and they are preferably 35～40 years old.
The water holding hole of described organic compost is 5～20, and they are preferably 8～12 years old.
Farm-forestry crop is used chemical fertilizer mostly at present, life-time service makes water ratio, porosity of soil, the gas permeability of soil and the perviousness of soil all reduce, the phenomenon that hardens is quite serious, the total porosity of organic compost of the present invention is high, can effectively increase sedimentation and the ventilation property of soil, effectively alleviate the soil compaction degree.
In described organic compost, the EC value is less than 4.
In described organic compost, moisture content is 35%～50%.
According to the needs of different crops, organic compost provided by the invention can mix with mineral manure use, and described mineral manure comprises one or more mixing of nitrogenous fertilizer, phosphate fertilizer or potash fertilizer.
For realizing another goal of the invention of the present invention, the technical scheme of employing is:
(1) concentrated producing black liquor in the pulping with ammonium sulfite method process, obtained heavy foul condensate;
(2) one of by product that heavy foul condensate produces when getting the raw materials ready in crop by-product or organic waste or grass pulping process or its mix phase and mix, and utilization weighs the waste heat of foul condensate and contained nitrogen ferments and obtains fertilizer or matrix its mixture.
Preferably, the temperature of heavy foul condensate is that 25～70 ℃, nitrogenous mass percent are 0.05%～0.5%.
More preferably, preferably 50～70 ℃ of the temperature of described heavy foul condensate, nitrogenous mass percent is 0.1～0.3%.
The resulting fertilizer of step (2) or matrix is for planting plants, and described plant comprises as the plant of pulping with ammonium sulfite method raw material or not as the plant of pulping with ammonium sulfite method raw material.
The described slurrying of step (1) comprises gets the raw materials ready, boiling, shove, washs and discongest; Described black liquor is the waste liquid produced in the shove process.
Capable of regulating nitrogen content as required, for example, by adding appropriate nitrogenous ammoniacal liquor to meet the quality of described carbon and nitrogen.
In the present invention, described Stalk Ammonia Sulfite Pulping is:
1) in intermittent type ball-type pulp digester or continuous steamer:
Described Stalk Ammonia Sulfite Pulping is:
1. add cooking liquor at the stalk for slurrying, wherein the ammonium sulphite consumption is the 9-13% to the over dry material quantity, joins the 0-8% that amount of sodium hydroxide is the over dry material quantity, and liquor ratio is 1:2-4;
2. pass into steam and heated, be heated to temperature 165-173 ℃, intensification, little venting, the omnidistance time 160-210 minute of insulation;
2) in vertical digester:
Described Stalk Ammonia Sulfite Pulping is:
The hot black liquor that will be 120-140 ℃ by temperature for the stalk of slurrying is by the packer steam cooker of packing into, close pot cover after the dress pot is full, toward supplementing temperature in steam cooker, be 130-160 ℃ of steaming preparation, discharge the air in pot simultaneously and boost to 0.6-0.75MPa, the cooking liquor heating cycle pump of open system and tube still heater are that cooking liquor is warming up to 156-173 ℃, heat up, be incubated and be replaced into 180-220 minute, finally with pump, put slurry is delivered to spraying pot; In described steaming preparation, wherein the ammonium sulphite consumption is the 9-15% to the over dry material quantity, joins the 0-8% that amount of sodium hydroxide is the over dry material quantity, and liquor ratio is 1:6-10.
It has been generally acknowledged that grass kind plant slurrying in prior art if reach the chemical pulp of high whiteness, need to be when boiling, the time of boiling and insulation will be grown, make slurry boil relatively " soft ", it is below 10 that being entitled as of for example delivering on the 14th the 3rd phase of volume in 1999 " Hubei Polytichnic College's journal " mentioned pulp hardness K value in " the strengthening dogstail is got the raw materials ready and reforms imagination and the Preliminary Practice of boiling " literary composition, the good 7-8 that reaches, become pulp yield more than 50%, good reaches 57%, more than fracture length 4000m, good reach 7000m more than, can obtain the straw pulp Extended Delignification, the shallow good bleaching of pulping, intensity is good, digester yield is high, can be energy-conservation, subtract dirt, the advantages such as consumption reduction.
In Stalk Ammonia Sulfite Pulping technique of the present invention, by reducing the consumption of cooking liquor, shorten the time of boiling, prepare high-hardness pulp.The minimizing of chemical liquid consumption and the shortening of cooking time all can reduce enterprise's production cost greatly, and yield is greatly improved, thereby have greatly improved production efficiency.Simultaneously, high-hardness pulp of the present invention can be used as the raw material for preparing bleach chemical pulp, during due to boiling, the concentration of liquid used reduces, and the time of boiling and insulation also shortens greatly, thereby having reduced loss and the degraded of needed Mierocrystalline cellulose and hemicellulose in paper pulp on to greatest extent, yield and the intensity of paper pulp all is improved.
Adopt Stalk Ammonia Sulfite Pulping technique of the present invention, by grass kind plant carry out boiling complete after, the high-hardness pulp that to have obtained permanganate number be 16-28 is equivalent to card uncle valency 24-50.The paper that prepared paper pulp is made with the present invention, stiffness etc. are all obviously due to prior art.
The nitrogenous per-cent of the described heavy foul condensate of step (1) preferably 0.1%～0.3%, preferably 50～70 ℃ of temperature.
The described crop by-product of step (2) comprises all positions except the farm crop fruit.
Described dogstail comprises wheat straw, straw, cotton stalk, bagasse, giantreed or reed.
The described organic waste of step (2) comprises the organism of gardens organic waste or domestic refuse, and described gardens organic waste comprises branch, leaf and/or the lawn of pruning.
In step (2), by heavy foul condensate, with one of by product produced when getting the raw materials ready in crop by-product or organic waste or grass pulping process or its mixture, by carbon in mixture and the mass ratio of nitrogen, be that 15～30:1 mixes mutually, mixed pH=9.5～10, the initial temperature of fermentation is 55～60 ℃.
Before above-mentioned fermentation, the water content of mixture is 60%～80%.
The described fermentation of step (2) in pH=6.5～8.5 and the mass ratio of carbon and nitrogen fermented while being 15～25:1.
The temperature that described fermentation is mixture drops to higher than envrionment temperature and less than or equal to 40 ℃ and completes.
The black liquor produced in the pulping with ammonium sulfite method process, when concentrated, has water of condensation to produce, and the present invention is called heavy foul condensate, and containing Black Liquor Concentration in this heavy foul condensate is the ammonia produced, and in heavy foul condensate, contains ammoniacal liquor, and its temperature is at 50～70 ℃.
The optimal temperature of agricultural crop straw or fermentation of organic wastes is at 55～60 ℃, and temperature is higher, and biochemical reaction speed is faster, and required fermentation time is shorter, and starts fermentation in this temperature range, basically can all knock out most pathogenic bacterias in mixing raw material; If during fermentation, temperature is too low, cause fermentation time oversize, and pathogenic bacteria can not be removed; If leavening temperature is too high, fermentation time has shortened, but useful microorganism can die at high temperature.
After the heavy foul condensate produced when the present invention utilizes Black Liquor Concentration mixes with agricultural crop straw or organic waste, its temperature is at 55～60 ℃, this water of condensation and agricultural crop straw mixture have supplemented the nitrogen element needed in the stalk fermentation process, without external world's heating, it mixes the optimal temperature that rear temperature can reach rapidly agricultural crop straw or fermentation of organic wastes simultaneously.By the i.e. heavy abundant recycle of foul condensate of waste liquid produced in pulping process; In addition, save energy consumption, directly utilized the heat energy of heavy foul condensate, shortened fermentation time, utilized heavy foul condensate can save the water needed during the fermentation, saved water resources; Finally agricultural crop straw and organic waste are taken full advantage of.Not only save energy but also avoided environmental pollution, obtained the organic compost useful to farm crop.
The preferred agricultural crop straw of described crop by-product or wheat bran, agricultural crop straw comprises one or more mixing of wheat stalk, rice straw, maize straw, beanstalk, broomcorn straw or peanut stalk.
Described crop by-product is the mixture of stalk and wheat bran more preferably.
The 0.3%-0.6% that described wheat bran add-on is the agricultural crop straw quality.
Also can add one or more the mixing in fermented bacterium, calcium superphosphate, mud, nursery soil, lime or feces of livestock and poultry before being fermented.
Heavy foul condensate of the present invention can supplement in farming stalk or melting process nitrogen element not enough in byproduct, except heavy foul condensate, can also add other all materials that the nitrogen element can be provided simultaneously, such as nursery soil, mud etc., in order to improve the content of other compositions of organic compost, such as calcium, nitrogen, phosphorus or potassium etc., can add the corresponding material that also has these elements.
Described fermenting process is the nature aerobic fermentation.
The aerobic bacterial classification that described aerobic fermentation is used comprises aspergillus fungi, Penicillium notatum, Bacillus subtilus, Trichoderma or actinomycetic one or more mixing.
Preferred version of the present invention is: (1) is concentrated producing black liquor in the pulping with ammonium sulfite method process, obtains concentrated black liquor and temperature and be the heavy foul condensate of 50～70 ℃;
(2) byproduct produced while weighing foul condensate and getting the raw materials ready in the grass pulping process mixes mutually, is fermented;
(3) the pH value 6.5～8.5 and the mass ratio of carbon and nitrogen fermented while being 15～25:1, obtain the leavened prod organic compost.
The byproduct produced while getting the raw materials ready in agricultural crop straw or grass pulping process is during as fermentation raw material, with the mass ratio 1:2 of weight water of condensation～5.
Disclose and utilized papermaking wastewater and agricultural crop straw to make fertilizer technique in patent application 200610012804.9, to utilize papermaking wastewater (claiming again black liquid) and stalk Hybrid Heating, pressure cooking, the slaking straw powder, till adding afterwards the vitriol oil again and neutralizing neutrality, the mixture after neutralization adds yeast and enzymic fermentation to make fertilizer.
With patent application 200610012804.9, compare, the present invention prepares in nitrogenous heavy foul condensate that black liquid that organic compost adopts distills out in preparing the fertilizer process and stalk or paper-making process the mixed fermentation of the byproduct of generation while getting the raw materials ready, take full advantage of nitrogen and heat thereof in heavy foul condensate, do not need other heating, pressurization, can make PH=6.5～8.5, the organic compost of C:N=15～25:1, utilization from raw material, the aspects such as preparation technology, the present invention more can take full advantage of papermaking wastewater than patent application 200610012804.9, obtain the organic fertilizer useful to agriculture and forestry plant.
Organic compost provided by the invention contains the compositions such as organic matter, humic acid, trace element, and total porosity is 40～60, ventilating slit is 30～50, the water holding hole is 5～20, the improvement soil physical and chemical property is obvious, make water ratio, porosity of soil, the gas permeability of soil and the perviousness of soil occur obviously to change, effectively alleviate the soil compaction phenomenon, stimulate crop growth, strengthen the farm crop anti-adversity, improve the several functions such as quality of agricultural product.
This organic compost is to take full advantage of nitrogenous heavy foul condensate and the stalk fermentation of 50～70 ℃ that black liquor that papermaking produces forms in concentration process to make, solved on the one hand problem of environmental pollution, the heavy foul condensate of papermaking wastewater and heat are taken full advantage of, solved waste water pollution problem; On the other hand, the byproduct produced when getting the raw materials ready in agricultural crop straw or paper-making process also fully utilizes, and has really realized the purpose of straw-returning.Whole technological process is simple to operate, produce again weight foul condensate and straw and obtain organic compost in paper-making process, this organic compost is applied to the process of farm-forestry crop growth again, the stalk grown can be used for paper industry, so recycle is the benign cycle of the sustainable development of suitability for industrialized production.
The accompanying drawing explanation
The utilization process schema of Fig. 1 pulping with ammonium sulfite method water of condensation.
Embodiment
Embodiment 1
Illustrate in pulping with ammonium sulfite method process waste liquid or the cyclic utilization of waste in conjunction with Fig. 1, by wheat stalk cut-out, dedusting with except processing of getting the raw materials ready such as paddy, obtain straw and byproduct wheat bran that slurrying is used; Straw after processing with the ammonium sulfite solution boiling; Shove has produced concentrated black liquid afterwards, and the concentrated black liquid reconcentration makes fertilizer and water of condensation; Rare black liquor that the washing of product after shove obtains can recycle in boiling.
By in the waste material wheat bran 1000kg produced in pulping process, adding the nitrogen content produced in the 2000kg pulping process, be 2000ppm, temperature is 60 ℃ heavy foul condensates and 6kg wheat bran, be uniformly mixed, wherein water content is 70%, the mass ratio C:N=25:1 of carbon and nitrogen in mixture, pH is 9.5, after mixing, adopt bar buttress formula fermentation process to carry out the nature aerobic fermentation, in the process of fermentation, temperature is detected, the temperature of fermenting process rises gradually, be 55-60 ℃ in temperature continues within 25 days, to start to descend later, the 40 ℃ of fermenting processs that drop to of temperature finish, its pH value is 7.1, in the every 100g of product organic compost obtained, contain the 24.32g organic matter, 12.47g humic acid, full potassium content is 1.13g, content of tatal phosphorus is 0.12g, total nitrogen content is 1.14g, the ventilation space is 38.8%, and general porosity is 49.64, and the water holding space is 10.84%, and contains micro-22.53mg/kg copper, 62.70mg/kg zinc, 2.38g/kg iron, 281.03mg/kg manganese.
Embodiment 2
By adding the nitrogen content produced in the 3000kg of our company pulping process in rice straw 1000kg, be 2500ppm, temperature is 70 ℃ heavy foul condensates, add again the 5kg wheat bran, be uniformly mixed, wherein water content is 65%, the mass ratio C:N=18:1 of carbon and nitrogen in mixture, pH is 10.0, after mixing, adopt bar buttress formula fermentation process to carry out the nature aerobic fermentation, in the process of fermentation, temperature is detected, the temperature of fermenting process rises gradually, be 55-60 ℃ in temperature continues within 14 days, to start to descend later, the 35 ℃ of fermenting processs that drop to of temperature finish, its pH is 6.5, in the every 100g of product organic compost obtained, contain the 35.25g organic matter, 10.85g humic acid, full potassium content is 1.63g, content of tatal phosphorus is 0.84g, total nitrogen content is 1.59g, the ventilation space is 48.8%, and general porosity is 46.64, and the water holding space is 16.84%, and also has micro-32.54mg/kg copper, 68.52mg/kg zinc, 3.13g/kg iron, 280.54mg/kg manganese.
Embodiment 3
(1) get the raw materials ready
Wheat straw waste and waste material wheat bran that wheat straw grass stalk is got the raw materials ready and obtained handling well;
(2) pulping by cooking
Add the steaming preparation ammonium sulphite in the wheat straw waste of handling well that upwards step obtains, wherein the consumption of ammonium sulphite is over dry material quantity 9%, liquor ratio is 1:2, passing into steam is heated, when being heated to temperature and being 100 ℃, insulation is 20 minutes, carries out little steam bleeding, continues to be heated to 165 ℃, be incubated 60 minutes, the high-hardness pulp that obtain concentration and be 8%, hardness is 16 permanganate numbers;
(3) the high-hardness pulp aftertreatment obtains rare black liquor
The high-hardness pulp that upper step is obtained enters from the entrance of pulp-extruding machine, and extruding black liquor, after extruding black liquor, carries out pulp washing, the black liquor that merging is extruded and the black liquor of pulp washing, and obtaining solid content is 15%, rare black liquor that degree Beaume is 9, pH is 10.
(4) evaporation concentration
Rare black liquor that upper step is obtained carries out that evaporation concentration obtains concentrated black liquid and nitrogen content is the water of condensation that 500ppm, temperature are 60 ℃, and concentrated black liquid is for the composting material;
(5) fermentation
Add the described heavy foul condensate of 4500kg step (4) in the waste material wheat bran 1000Kg of step (1), be uniformly mixed, wherein water content is 75%, the mass ratio C:N=30:1 of carbon and nitrogen in mixture, pH is 9.5, after mixing, adopt bar buttress formula fermentation process to carry out the nature aerobic fermentation, in the process of fermentation, temperature is detected, the temperature of fermenting process rises gradually, be 55-60 ℃ in temperature continues within 15 days, to start to descend later, the 32 ℃ of fermenting processs that drop to of temperature finish, its pH is 8.2, in the every 100g of product organic compost obtained, contain the 41.25g fertilizer, 15.85g humic acid, full potassium content is 1.13g, content of tatal phosphorus is 0.2g, total nitrogen content is 1.13g, the ventilation space is 38.8%, and general porosity is 49.64, and the water holding space is 10.84%, and contains micro-19.93mg/kg copper, 62.70mg/kg zinc, 2.38g/kg iron, 281.03mg/kg manganese.
Embodiment 4
The wheat stalk 100kg of the waste material wheat bran 800kg that produces in pulping process and chopping is mixed, adding the nitrogen content produced in the 2600kg pulping process is 2000ppm again, temperature is 70 ℃ heavy foul condensates, be uniformly mixed, wherein water content is 60%, the mass ratio C:N=25:1 of carbon and nitrogen in mixture, pH is 9.5, after mixing, adopt bar buttress formula fermentation process to carry out the nature aerobic fermentation, in the process of fermentation, temperature is detected, the temperature of fermenting process rises gradually, be 55-60 ℃ in temperature continues within 20 days, to start to descend later, the 26 ℃ of fermenting processs that drop to of temperature finish, its pH is 7.2, in the every 100g of product organic compost obtained, contain the 45.31g fertilizer, 15.21g humic acid, full potassium content is 1.31g, content of tatal phosphorus is 0.18g, total nitrogen content is 1.28g.
Embodiment 5
By the waste material rice chaff 1000kg produced in pulping process, 10kg ight soil and 5kg Bacillus subtilus mix, adding the nitrogen content produced in pulping process is 2500ppm again, temperature is 68 ℃ heavy foul condensates, be uniformly mixed, wherein water content is 60%, the mass ratio C:N=30:1 of carbon and nitrogen in mixture, pH is 9.5, after mixing, adopt bar buttress formula fermentation process to carry out the nature aerobic fermentation, in the process of fermentation, temperature is detected, the temperature of fermenting process rises gradually, be 55-60 ℃ in temperature continues within 13 days, to start to descend later, the decline of temperature shows to finish to 15 ℃ of fermenting processs, its pH is 6.8, in the every 100g of product organic compost obtained, contain the 18.61g fertilizer, 16.47g humic acid, full potassium content is 0.86g, content of tatal phosphorus is 0.25g, total nitrogen content is 1.57g.
Embodiment 6
Maize straw 500kg by chopping, cotton stalk 300kg and the pruning trees of chopping, lawn waste 200kg mixes mutually, adding the nitrogen content produced in the 3100kg pulping process is 1500ppm again, temperature is 68 ℃ heavy foul condensates, be uniformly mixed, the nursery soil that simultaneously adds 10kg, wherein water content is 75%, the mass ratio C:N=17:1 of carbon and nitrogen in mixture, pH is 9.6, after mixing, adopt bar buttress formula fermentation process to carry out the nature aerobic fermentation, in the process of fermentation, temperature is detected, the temperature of fermenting process rises gradually, be 55-60 ℃ in temperature continues within 21 days, to start to descend later, the 37 ℃ of fermenting processs that drop to of temperature finish, its pH is 7.0, in the every 100g of product organic compost obtained, contain the 26.24g fertilizer, 14.91g humic acid, full potassium content is 1.41g, content of tatal phosphorus is 0.20g, total nitrogen content is 1.48g.
Claims (4)
1. an organic compost, it comprises following feed composition: the by product or its two or more mixture that when crop by-product, organic waste or grass pulp are got the raw materials ready, produce; With heavy foul condensate, described heavy foul condensate is the nitrogenous water of condensation produced in ammonium salt process Black Liquor Concentration process, and the temperature of heavy foul condensate is that 50～70 ℃, nitrogenous mass percent are 0.05%～0.3%,
The by product produced when described crop by-product, organic waste or grass pulp are got the raw materials ready or its two or more mixture mix and are fermented mutually with heavy foul condensate, and before fermentation, the carbon of mixture and the mass ratio of nitrogen are 15～30: 1, pH=9.5～10;
The temperature of described fermentation is being 55～60 ℃;
Drop to higher than envrionment temperature and be to have fermented in 15～25: 1 o'clock less than or equal to the mass ratio of 40 ℃, pH=6.5～8.5 and carbon and nitrogen at leavening temperature, obtain the leavened prod organic compost.
2. the method for the recycle of a heavy foul condensate, comprise the steps:
(1) to producing black liquor in the pulping with ammonium sulfite method process, concentrated, obtain heavy foul condensate, described heavy foul condensate is the nitrogenous water of condensation produced in ammonium salt process Black Liquor Concentration process, and the temperature of heavy foul condensate is that 50～70 ℃, nitrogenous mass percent are 0.05%～0.3%;
(2) one of by product that heavy foul condensate produces when getting the raw materials ready in crop by-product or organic waste or grass pulping process or its mix phase and mix, and utilization weighs the waste heat of foul condensate and contained nitrogen ferments and obtains fertilizer or matrix its mixture;
Wherein, one of by product that heavy foul condensate produces when getting the raw materials ready in crop by-product or organic waste or grass pulping process or its mixture are mutually to mix at 15～30: 1 by carbon in mixture and the mass ratio of nitrogen, mixed pH=9.5～10;
The temperature of described fermentation is 55～60 ℃;
Described fermentation drops to higher than envrionment temperature and is to have fermented in 15～25: 1 o'clock less than or equal to the mass ratio of 40 ℃, pH=6.5～8.5 and carbon and nitrogen in the temperature of mixture.
3. method according to claim 2, is characterized in that, the described crop by-product of step (2) comprises all positions except the farm crop fruit; Described organic waste comprises the organism of gardens organic waste or domestic refuse, and described gardens organic waste comprises branch, leaf and/or the lawn of pruning.
4. method according to claim 2, is characterized in that, adds one or more the mixing in fermented bacterium, nitrogenous fertilizer, phosphate fertilizer, active biochemical mud, nursery soil, lime or feces of livestock and poultry before being fermented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171528XA CN101759450B (en) | 2008-10-17 | 2008-10-17 | Circle application of waste condensate water during pulping with ammonium sulfite method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171528XA CN101759450B (en) | 2008-10-17 | 2008-10-17 | Circle application of waste condensate water during pulping with ammonium sulfite method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101759450A CN101759450A (en) | 2010-06-30 |
| CN101759450B true CN101759450B (en) | 2013-12-04 |
Family
ID=42490854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810171528XA Active CN101759450B (en) | 2008-10-17 | 2008-10-17 | Circle application of waste condensate water during pulping with ammonium sulfite method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101759450B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768887B (en) * | 2010-03-17 | 2012-12-26 | 山东和润浆纸有限公司 | Circular utilization method of straw in pulping and papermaking processes |
| CN105565931A (en) * | 2015-12-14 | 2016-05-11 | 普洱国康种植产业集团有限责任公司 | Organic compound fertilizer, and preparation method and application thereof |
| CN107226723A (en) * | 2017-06-12 | 2017-10-03 | 吉林农业大学 | A kind of method that utilization agricultural organic waste degraded prepares fertilizer |
| CN108675899A (en) * | 2018-07-26 | 2018-10-19 | 龚福庆 | Base manure composite fertilizer and its application |
| CN110915347A (en) * | 2019-12-19 | 2020-03-27 | 重庆市永川区水电建筑有限责任公司 | Construction method for soil finishing, surface soil stripping and backfilling |
| CN111185461B (en) * | 2020-01-06 | 2021-03-30 | 杰瑞邦达环保科技有限公司 | Pulping method of organic dangerous solid waste |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281835A (en) * | 2000-09-06 | 2001-01-31 | 南京农业大学 | Method for decomposing stalks and straws of crops and fertilizer made of them |
| CN1400194A (en) * | 2001-08-03 | 2003-03-05 | 中国科学院化工冶金研究所 | Method for preparing ecological fertilizer by using steam-puffed plant straw and stalk as raw material through solid fermentation |
-
2008
- 2008-10-17 CN CN200810171528XA patent/CN101759450B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1281835A (en) * | 2000-09-06 | 2001-01-31 | 南京农业大学 | Method for decomposing stalks and straws of crops and fertilizer made of them |
| CN1400194A (en) * | 2001-08-03 | 2003-03-05 | 中国科学院化工冶金研究所 | Method for preparing ecological fertilizer by using steam-puffed plant straw and stalk as raw material through solid fermentation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101759450A (en) | 2010-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101759449B (en) | Seedling medium and preparation method thereof | |
| CN103396223B (en) | A kind of take Chinese medicine slag as biological organic fertilizer and the production technique thereof of raw material | |
| CN101759450B (en) | Circle application of waste condensate water during pulping with ammonium sulfite method | |
| CN101773927A (en) | Method for comprehensive utilization of residues from alcohol and starch processing by using tapioca | |
| CN104030859A (en) | Special biological multieffect fertilizer for grapes and preparation method thereof | |
| CN105348005A (en) | Production method of biological carbon-based ecological fertilizer | |
| CN105348006A (en) | Biological carbon-based ecological fertilizer | |
| CN101659572B (en) | Method for producing fertilizer by utilizing mud and plant straws | |
| CN101851127B (en) | Preparation process of multifunctional bamboo-shell organic-inorganic composite fertilizer | |
| CN106518216A (en) | A preparing method of a long-acting organic fertilizer | |
| CN103819286A (en) | Special biological multi-effect fertilizer for grapes and preparation method thereof | |
| CN103418353B (en) | The preparation method of modified straw sorbing material is strengthened based on amination | |
| CN102924185A (en) | Chicken manure fermented fertilizer | |
| CN105948885A (en) | Activated sludge organic fertilizer and preparation method thereof | |
| CN105884449A (en) | Method for producing organic fertilizer by means of monosodium glutamate wastewater and straw fermentation | |
| CN107624611A (en) | The preparation method of organic fruits and vegetables cultivation matrix | |
| CN103641593B (en) | Method for preparing garden media from biogas slurry | |
| CN108264405A (en) | A kind of organic fertilizer prepared using cassava trade waste and preparation method thereof | |
| CN104529588A (en) | Production method of straw-based organic inorganic compound fertilizers | |
| CN106831043A (en) | A kind of tomato soilless culture substrate | |
| CN1537830A (en) | Method of producing fertilizer from black liquid generated during paper making by potassium hydroxide alkali method | |
| CN108976086A (en) | A kind of preparation method of organic-inorganic compound fertilizer | |
| CN101759451B (en) | Organic fertilizer and preparation method thereof | |
| CN105237051A (en) | Method for preparing organic fertilizer from sludge compost by taking beet pulp as conditioning agent | |
| CN106631225A (en) | High-nutrient compound fertilizer and production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG HERUN PULP + PAPER CO., LTD. Free format text: FORMER OWNER: SHANDONG QUALIN PAPER INDUSTRY CO., LTD. Effective date: 20101220 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 252800 NO. 26, GUANDAO STREET, GAOTANG COUNTY, SHANDONG PROVINCE TO: 252800NO. 15, GUANGMING EAST ROAD, GAOTANG COUNTY, SHANDONG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20101220 Address after: 252800 No. 15 Guangming East Road, Gaotang County, Shandong Province Applicant after: Shandong Tralin Paper Co., Ltd. Address before: Shandong province Gaotang County Road 252800 Street No. 26 Applicant before: Shandong Qualin Paper Industry Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG FUYIN PAPER MAKING ENVIRONMENTAL PROTECTI Free format text: FORMER OWNER: SHANDONG HERUN PULP AND PAPER CO., LTD. Effective date: 20110124 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 252800 NO. 15, GUANGMING EAST ROAD, GAOTANG COUNTY, SHANDONG PROVINCE TO: 252800 NO. 26, GUANDAO STREET, GAOTANG COUNTY, SHANDONG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110124 Address after: Shandong province Gaotang County Road 252800 Street No. 26 Applicant after: Shandong Fuyin Paper Making Environmental Protection Technology Co., Ltd. Address before: 252800 No. 15 Guangming East Road, Gaotang County, Shandong Province Applicant before: Shandong Tralin Paper Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |