CN102627500A - Method for producing ecological environment protection water retention nutrient soil by using lake silt - Google Patents
Method for producing ecological environment protection water retention nutrient soil by using lake silt Download PDFInfo
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Abstract
The invention discloses a method for producing ecological environment protection water retention nutrient soil by using lake silt. The key points of the technical scheme provided by the invention are that: an ecological environment protection water retention nutrient soil half-finished product is added into a double-horizontal-shaft forced mixer; a biogas slurry water retaining agent is added into the ecological environment protection water retention nutrient soil half-finished product; after being uniformly stirred and mixed, the materials are conveyed into a hard particle extrusion granulator to be extruded into cylindrical particles; the cylindrical particles are conveyed into an integrated soil sterilization and insect disinfestation device for sterilization and insect disinfestation; and the particles which are subjected to sterilization and insect disinfestation are a finished product of ecological environment protection water retention nutrient soil. The method has the characteristics of simple process, high production efficiency and low cost, can be used for processing the ecological environment protection nutrient soil of various formulas by using stacked or discarded lake silt at the dredging sites of ports, fairways, lakes and rivers; and the ecological environment protection water retention nutrient soil is high-grade ecological environment protection nutrient soil which has the advantages of complete nutrient ingredients, high fertility, no toxicity, no harm and no odor, and can be used for cultivating potted flowers without being watered in 45 days.
Description
Technical field
The present invention relates to the soil field, be specifically related to a kind of method of utilizing lake silt to produce the ecological, environmental protective water-preserving nutritive soil.
Background technology
In order to improve the water quality in lake, river; Guarantee the unimpeded of normal flood carrying capacity in river course and navigation channel, harbour, China has carried out large-scale dredging and desilting engineering, according to statistics; About 6700 ten thousand steres of Taihu Lake bed mud ecological dredging amount only; Dredging silt amount about 8000 ten thousand steres in Delta of the Pearl River area still will produce a large amount of dredging silts in water conservancy, He Hu, port dredging and the desilting engineering, and become the reality that is difficult to avoid in following 10 years.
The dredging silt that produces in the dredging engineering adopts the method for stacking or abandoning to handle usually; Cause the waste of a large amount of land resourcess on the one hand; Will cause very big destruction to ecotope; On the other hand, dredging silt contains heavy metal, organic pollutant, various pathogenic bacteria and Parasites mostly, will inevitably cause secondary pollution to surrounding enviroment.
Since edible fungi residue all can be in various degree living contaminantses such as generation such as green mold, mould, aspergillus, head mold, Mucor and bacterium; Can not directly be used for fertilising; Mouldy in a large number, blackout, acid are smelly and receive the bacterium slag of living contaminants arbitrarily to be deposited in field, highway both sides or two sides, river, cause the environment of traffic jam and polluted air, soil and river.
The pollutent that livestock and poultry farms in scale produces mainly contains solid manure, sewage and foul gas; Contain a large amount of nitrogen, phosphorus, suspended substance and pathogenic bacterium in fecaluria movement and the waste water; Amount of pollutants is big and concentrated, especially serious with water pollution and stench pollution on the environment.
Feces of livestock and poultry is the important substance basis of biogas fermentation; Most of livestock and poultry farms in scale all has the marsh gas power generation device; Can produce natural pond liquid and natural pond slag after the marsh gas power generation, though natural pond liquid and natural pond slag can be used to produce fertilizer, a large amount of natural pond liquid and natural pond slags still can not obtain good use; The livestock and poultry farm that has utilizes unprocessed random discharging on rainy day, serious pollution local ecotope.
Summary of the invention
The objective of the invention is to overcome weak point in the prior art, a kind of method of utilizing lake silt to produce the ecological, environmental protective water-preserving nutritive soil is provided.
Utilize lake silt to produce the method for ecological, environmental protective water-preserving nutritive soil: earlier ecological, environmental protective water-preserving nutritive soil work in-process to be added in the dual horizontal axle forced mixer; Again natural pond liquid water-holding agent is added in the ecological, environmental protective water-preserving nutritive soil work in-process; After mixing; Being transported in the grit Squeezinggranulator and being squeezed into cylindrical particle, cylindrical particle is imported in the integrated soil disinfection insect-killing device carried out sterilizing pesticide, is the finished product of ecological, environmental protective water-preserving nutritive soil through the particle behind the sterilizing pesticide.
Edible fungi residue, ferrous sulfate, zinc sulfate, ammonium molybdate, copper sulfate, borax, manganous sulfate, natural pond liquid, natural pond slag and High hydrophilous resin after the feces of livestock and poultry of ecological, environmental protective water-preserving nutritive soil after by lake silt, high sticking attapulgite clay powder, bentonite in powder, fermentation, edible fungi residue, the carbonization are formed.
Lake silt is to have adopted the mud of stacking or abandoning in the engineerings such as dredging harbour, navigation channel, lake and river; Contain elements such as a large amount of nitrogen, phosphorus, potassium in the lake silt; Its content surpasses general soil, and these elements necessary for plant growth nutrition just, the present invention selects for use through the lake silt after pulverizing; The water ratio of lake silt is less than 25%, and particle fineness is less than 5 millimeters.
Attapulgite clay be a kind of layer of chain-like structure contain Shuifu County's zeopan clay mineral, high sticking attapulgite clay soil property is fine and smooth, water-absorbent is strong; Higher viscosity and the plasticity-of tool when wet; Help the bonding between the ecological, environmental protective water-preserving nutritive soil raw material, and can adsorb heavy metal ion and carcinogenic substance in the ecological, environmental protective water-preserving nutritive soil, but also deodorizing eliminates the unusual smell; Keep the nutritive ingredient in the ecological, environmental protective water-preserving nutritive soil not run off, help growth and development of plant.
High sticking attapulgite clay powder is meant gets 28.0g attapulgite clay powder sample; Add in the suspension-s cup of impeller, add 372g water again, the suspension-s cup is placed on the impeller; Under 11000 rev/mins rotating speed, stirred 20 minutes; To pass through the high-speed stirring sample suspension again and pour in the beaker of 250ml, the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension-s, tested viscosity value>=2200
MPasThe attapulgite clay powder be high sticking attapulgite clay powder, the height that the present invention selects for use glues attapulgite clay powder particles fineness≤0.074 millimeter.
Bentonite in powder has strong water absorbability and swelling property, adsorbable 8～15 times to the water yield of own vol, volumetric expansion can reach several times even 30 times; In water medium, can be dispersed into as a form of gel and suspension, this medium solution has certain glutinousness, thixotropy and oilness; Stronger CEC is arranged; All gases, liquid, organic substance are had certain adsorptive power, and maximal absorptive capacity can reach 5 times of weight to self; The admixture of it and water, mud or fine sand has plasticity-and agglutinating value(of coal), bentonite in powder particle fineness≤0.074 that the present invention selects for use millimeter.
Feces of livestock and poultry after the fermentation is meant to be concentrated feces of livestock and poultry such as pig, ox, sheep, chicken, duck and goose or ferment separately; Contain abundant nutritive element and organic matter in the feces of livestock and poultry by fermentation; It is a kind of good organic fertilizer resource; Can improve utilizability nitrogen, phosphorus, potassium, organic content and the growth that promotes plant of ecological, environmental protective water-preserving nutritive soil; Increase the yield and quality of the organic content of ecological, environmental protective water-preserving nutritive soil, the physico-chemical property of improving the ecological, environmental protective water-preserving nutritive soil, raising crop, can also kill germ and insects such as excrement colibacillus group, roundworm egg, nematode.
Edible fungi residue is a remaining waste behind the various mushrooms of cultivation, and it contains protein and other nutritive substance, and the title of " tropina " is arranged; Contain a large amount of mycelium; The bacterium slag is loose ventilative, can in the ecological, environmental protective water-preserving nutritive soil, further resolve into the soil ulmin with good ventilation, water-holding capacity, can increase the ventilation property of ecological, environmental protective water-preserving nutritive soil; Avoid the ecological, environmental protective water-preserving nutritive soil to produce the phenomenon that hardens; The bacterium slag is rich in organism and multiple mineral element, can improve the ecological, environmental protective water-preserving nutritive soil, increases the fertility of ecological, environmental protective water-preserving nutritive soil.
Edible fungi residue after the carbonization is that edible fungi residue is carried out roasting under anoxic condition; Black edible fungi residue after the roasting is the edible fungi residue after the carbonization; Contain a large amount of potash fertilizer in the edible fungi residue after the carbonization, and can further strengthen the ventilation property of ecological, environmental protective water-preserving nutritive soil.
Iron is to form the necessary element of chlorophyll, and plant just produces chlorosis during iron deficiency, and it is faint yellow that blade is, even is white, and the present invention selects ferrous sulfate for use.
Zinc is the component of some enzyme in the plant materials, and zinc also is to promote that some metabolic reactions are essential, and zinc generates and forms glucide and is absolutely necessary for chlorophyll, and the present invention selects zinc sulfate for use.
Molybdenum mainly shows in the intravital physiological function of plant aspect the nitrogen metabolism, and molybdenum can also promote photosynthetic intensity and eliminate active aluminum in the acid soil in plant materials, to accumulate and the toxic action that produces that the present invention selects ammonium molybdate for use.
Copper has the ability that improves plant chlorophyll stability, avoids chlorophyll to wreck too early, helps blade and carries out photosynthesis better, and the present invention selects copper sulfate for use.
Boron can promote the normal operation of glucide, and the position that boron-containing quantity is the highest in plant materials is colored, so boron deficiency often shows as " colored and unreal ", and the present invention selects borax for use.
Manganese can promote the metabolism of glucide and the metabolism of nitrogen, with growth and development of plants and output substantial connection is arranged, and the present invention selects manganous sulfate for use.
Natural pond liquid has been killed harmful viral bacterium through microbiological degradation, contains the nutrient of various plants growth, rich in amino acid and various tethelin, and VITAMINs etc. are a kind of quick-acting and the long-lasting liquid fertilizer that has both and become thoroughly decomposed.
The natural pond slag is rich in organic matter, soil ulmin, nitrogen, phosphorus, potassium, micronutrient element, multiple amino acids, enzyme and useful microbe, can play the effect of well improving the soil.
The water absorbent rate of High hydrophilous resin can reach hundreds of times even thousands of times of own wt, and it is 100～300 times that the present invention selects the water absorbent rate of High hydrophilous resin for use.
The present invention is achieved through following technical proposals:
1, utilize lake silt to produce the method for ecological, environmental protective water-preserving nutritive soil: earlier ecological, environmental protective water-preserving nutritive soil work in-process to be added in the dual horizontal axle forced mixer that has moved; Again natural pond liquid water-holding agent is evenly added in the ecological, environmental protective water-preserving nutritive soil work in-process; After ecological, environmental protective water-preserving nutritive soil work in-process and natural pond liquid water-holding agent mix; The process rotary conveyor is transported in the grit Squeezinggranulator and is squeezed into cylindrical particle; Cylindrical particle being imported in the integrated soil disinfection insect-killing device carry out sterilizing pesticide, is the finished product of ecological, environmental protective water-preserving nutritive soil through the particle behind the sterilizing pesticide.
Said lake silt is produced the batching of ecological, environmental protective water-preserving nutritive soil and is made up of following component by weight percentage: ecological, environmental protective water-preserving nutritive soil work in-process 45～85% and natural pond liquid water-holding agent 15～55%.
The batching of said natural pond liquid water-holding agent is made up of following component by weight percentage: natural pond liquid 95～99.5% and High hydrophilous resin 0.5～5%.
The preparation method of natural pond liquid water-holding agent: earlier High hydrophilous resin is added in the container, natural pond liquid is added in the container mix again with High hydrophilous resin, after 10～60 minutes, the liquid-solid natural pond liquid water-holding agent that turns in natural pond.
The half-finished batching of said ecological, environmental protective water-preserving nutritive soil is made up of following component by weight percentage: the edible fungi residue 1～10% after the feces of livestock and poultry 2～25% after lake silt 35～80%, the fermentation, edible fungi residue 2～20%, natural pond slag 2～20%, the carbonization, high sticking attapulgite clay powder 1～10%, bentonite in powder 1～10% and trace element mixture 0.01～2%.
The batching of said trace element mixture is made up of following component by weight percentage: ferrous sulfate 0.01～25%, zinc sulfate 0.01～25%, ammonium molybdate 0.01～20%, copper sulfate 0.01～20%, borax 0.01～20% and manganous sulfate 0.01～20%.
Said integrated soil disinfection insect-killing device is formed by adding hometown earth sterilizing pesticide device and pot arch, add hometown earth sterilizing pesticide device by cylindrical conduit, ring flange, hopper, sterilizing pesticide chamber, spiral conveying blade, hub, sealing plate, sealing-ring, extraction line, vapor pipe, thermopair, chock, shaft coupling and buncher form; Pot arch is made up of body of heater, combustion chamber, furnace bottom, ash storage room, ash-removing door, gas blower, chimney, refractory materials, fire bars, blast pipe and fire door.
The separate case application of integrated soil disinfection insect-killing device patent of invention, number of patent application is: 201210086118.1 and 201210087882.0.
Utilize lake silt to produce the ecological, environmental protective water-preserving nutritive soil; Have the advantages that technology is simple, production efficiency is high and with low cost; Can be at the harbour, the dredging in navigation channel, lake and river is on-the-spot, adopts the lake silt of having stacked or having abandoned to process the ecological, environmental protective water-preserving nutritive soil of various prescriptions, effectively handles and make full use of lake silt; Save a large amount of land resources, can adopt the commercialization mode that lake silt is carried out comprehensive development and utilization.
Utilize in the ecological, environmental protective water-preserving nutritive soil of lake silt production and contain attapulgite clay and wilkinite; Can adsorb heavy metal, organic pollutant, various pathogenic bacteria and Parasites in the lake silt; Help preserving the ecological environment, avoid surrounding enviroment are caused secondary pollution.
Ecological, environmental protective water-preserving nutritive soil finished product is through behind the sterilizing pesticide; Can guarantee the inner quality of ecological, environmental protective water-preserving nutritive soil; Containing a large amount of nitrogen, phosphorus, potassium, organic matter and various trace elements in the ecological, environmental protective water-preserving nutritive soil finished product, is that a kind of nutrition is complete, fertilizer efficiency is high, nontoxic, harmless and do not have a high-quality ecological, environmental protective water-preserving nutritive soil of stink; Can provide plant-growth necessary nutritive element; Reduce pathogenic bacteria and insect to the harm of plant, do not use chemical nitrogen fertilizer and chemical pesticide, the normal growth that helps plant is grown.
Ecological, environmental protective water-preserving nutritive soil water retention property is lasting, and being used to cultivate bonsai flower can need not water in 45 days.
Utilize lake silt to produce the method for ecological, environmental protective water-preserving nutritive soil, be applicable to that with the lake silt of stacking or abandoning be main raw material, the ecological, environmental protective water-preserving nutritive soil of production multiple formulations.
Embodiment
Below in conjunction with embodiment the present invention is done further description:
1, utilize lake silt to produce the method for ecological, environmental protective water-preserving nutritive soil: earlier ecological, environmental protective water-preserving nutritive soil work in-process to be added in the dual horizontal axle forced mixer that has moved; Again natural pond liquid water-holding agent is evenly added in the ecological, environmental protective water-preserving nutritive soil work in-process; After ecological, environmental protective water-preserving nutritive soil work in-process and natural pond liquid water-holding agent mix; The process rotary conveyor is transported in the grit Squeezinggranulator and is squeezed into cylindrical particle; Cylindrical particle being imported in the integrated soil disinfection insect-killing device carry out sterilizing pesticide, is the finished product of ecological, environmental protective water-preserving nutritive soil through the particle behind the sterilizing pesticide.
Said lake silt is produced the batching of ecological, environmental protective water-preserving nutritive soil and is made up of following component by weight percentage: ecological, environmental protective water-preserving nutritive soil work in-process 68% and natural pond liquid water-holding agent 32%.
The batching of said natural pond liquid water-holding agent is made up of following component by weight percentage: natural pond liquid 98% and High hydrophilous resin 2%.
The preparation method of natural pond liquid water-holding agent: earlier High hydrophilous resin is added in the container, natural pond liquid is added in the container mix again with High hydrophilous resin, after 25 minutes, the liquid-solid natural pond liquid water-holding agent that turns in natural pond.
The half-finished batching of said ecological, environmental protective water-preserving nutritive soil is made up of following component by weight percentage: the edible fungi residue 3% after the feces of livestock and poultry 10% after lake silt 68%, the fermentation, edible fungi residue 8%, natural pond slag 6%, the carbonization, high sticking attapulgite clay powder 3%, bentonite in powder 1.85% and trace element mixture 0.15%.
The batching of said trace element mixture is made up of following component by weight percentage: ferrous sulfate 22%, zinc sulfate 20%, ammonium molybdate 18%, copper sulfate 16%, borax 16% and manganous sulfate 8%.
Claims (1)
1. method of utilizing lake silt to produce the ecological, environmental protective water-preserving nutritive soil; It is characterized in that; Earlier ecological, environmental protective water-preserving nutritive soil work in-process are added in the dual horizontal axle forced mixer that has moved; Natural pond liquid water-holding agent is evenly added in the ecological, environmental protective water-preserving nutritive soil work in-process, after ecological, environmental protective water-preserving nutritive soil work in-process and natural pond liquid water-holding agent mixed, the process rotary conveyor was transported in the grit Squeezinggranulator and is squeezed into cylindrical particle again; Cylindrical particle being imported in the integrated soil disinfection insect-killing device carry out sterilizing pesticide, is the finished product of ecological, environmental protective water-preserving nutritive soil through the particle behind the sterilizing pesticide;
Said lake silt is produced the batching of ecological, environmental protective water-preserving nutritive soil and is made up of following component by weight percentage: ecological, environmental protective water-preserving nutritive soil work in-process 45～85% and natural pond liquid water-holding agent 15～55%;
The batching of said natural pond liquid water-holding agent is made up of following component by weight percentage: natural pond liquid 95～99.5% and High hydrophilous resin 0.5～5%;
The preparation method of natural pond liquid water-holding agent: earlier High hydrophilous resin is added in the container, natural pond liquid is added in the container mix again with High hydrophilous resin, after 10～60 minutes, the liquid-solid natural pond liquid water-holding agent that turns in natural pond;
The half-finished batching of said ecological, environmental protective water-preserving nutritive soil is made up of following component by weight percentage: the edible fungi residue 1～10% after the feces of livestock and poultry 2～25% after lake silt 35～80%, the fermentation, edible fungi residue 2～20%, natural pond slag 2～20%, the carbonization, high sticking attapulgite clay powder 1～10%, bentonite in powder 1～10% and trace element mixture 0.01～2%;
The batching of said trace element mixture is made up of following component by weight percentage: ferrous sulfate 0.01～25%, zinc sulfate 0.01～25%, ammonium molybdate 0.01～20%, copper sulfate 0.01～20%, borax 0.01～20% and manganous sulfate 0.01～20%.
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