CN101525208A - Rural wastewater and refuse intensive treatment and resource green engineering - Google Patents
Rural wastewater and refuse intensive treatment and resource green engineering Download PDFInfo
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- CN101525208A CN101525208A CN200910119732A CN200910119732A CN101525208A CN 101525208 A CN101525208 A CN 101525208A CN 200910119732 A CN200910119732 A CN 200910119732A CN 200910119732 A CN200910119732 A CN 200910119732A CN 101525208 A CN101525208 A CN 101525208A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/33—Wastewater or sewage treatment systems using renewable energies using wind energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
- Y02W30/20—Waste processing or separation
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- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to rural wastewater and refuse intensive treatment and resource green engineering, in particular to an environmental engineering method without using mineral energy and electric energy. The method adopts anaerobic fermentation to prepare methane (marsh gas), enables the organic materials in the refuse and the sludge to be fully decomposed to obtain clean marsh gas with high heat productivity, and the marsh gas can be civilian or industrial related or used in the treatment process. After going through aerobic environment, anaerobic fermentation, land treatment and aeration, the wastewater is changed into water suitable for discharging, breeding or planting. The invention introduces the technical principle that the major greenhouses are generally used in the solar organic agricultural products and the animal products for high yield, overcomes the restriction of the season to the biological treatment, enables the microorganisms and the plants during the entire treatment process to be in the optimum temperature condition, can effectively produce methane in the four seasons and under any geographic condition and can purity the water quality. The agricultural environment is characterized by multiple points, wide surface, less amount and dispersion. The urban environment processing method is not applicable to agriculture-rural areas-farmers at all; but the technology can intensively solve the problem in the condition of saving investment and long effective.
Description
The invention belongs to environmental engineering and rural ecological environmental construction engineering, also is biological heat energy supply engineering.
China moves towards the stage of rural urbanization even urbanization just rapidly, because people in the countryside and area all substantially exceed the population and the area in current city, processing and resource utilization to villages and small towns sewage and rubbish are urgent day by day and serious, and in the long term, its importance will surmount the importance of urban environmental protection.
In recent years all be concerned about the villages and small towns environment protection both at home and abroad, and proposed many terms of settlement, but all there are some shortcomings in these methods.
Singapore will build article one " green channel ", and the ashes after the waste incineration are laid under the asphalt road.These ashes have obtained processing, but its composition---element such as wherein phosphorus, potassium, fail recirculation, and green has been arranged, but ended the fertilizer circulation.
Ordos City, Inner Mongol Dongsheng District has built up rubbish anaerobic fermentation production line, and it can be handled the mud of rubbish and Sewage Plant together, forms mushy stage fertilizer and biogas at last.This technological synthesis has utilized the solid-state and semi-solid state waste in city, but the plastic optical fibre class on manual sorting's mechanical production line, the magnetic separation metal object, and glass break in wind, the remaining big jar of rubbish fermentation that enters.This complex disposal process, investment is big, and processing power is limited, and effluent problem fails to solve, and obviously is not suitable for vast rural area.
The Olympic Forest Park has made up the practical engineering system of source separation and the recycle of sanitary waste resource utilization, solve the technical measures such as extensive use of chemical fertilizer processing, fertilizer application of the up to standard and refuse of sewage disposal, met environmental protection concepts such as changing waste into resources and energy-saving and emission-reduction.This is to set up the domestic sewage source first to separate and resource utilization closed circuit circulatory system on the spot in the park.But this technology is only supporting in the olympic game, and engineering is disregarded investment, as long as use in the demonstration project of ecological and international influence, obviously is not suitable for vast rural area.It is developed active separation by Tsing-Hua University and promptly separately collects the negative pressure source separation system that urine, negative pressure are separated stool, be any rural area can't implement the "The Spring Snow" of (unable investment), the olympic game are these " broad-leaved epiphyllum " unique opportunities.
Enshi, Hubei Province ecology homestead domestic methane tank project obtains United Nations's approval in recently, successfully is registered as Clean Development Mechanism (CDM) project.The project that this project is presided over exploitation by the Chinese Academy of Agricultural Sciences's agricultural environment and sustainable development institute, expectation can be that 3.3 ten thousand peasant households bring 6,000 ten thousand yuan direct economic benefit in 10 years.This technology is attached most importance to the construction of each household methane-generating pit, realizes " pond three changes " pattern, and the methane-generating pit construction with changing the kitchen, change circle, changing the lavatory and combine, is reduced the discharge of methane of people from peasant household, swine excrement and sewage, and with methane for peasant household's life with energy (heat).This technology takes into full account the characteristics of rural environment protection, but not have the advantage of intensification, so its single construction number and peasant household's number be equal to, and the manpower and materials of numerous engineerings are invested huge, and blemish in an otherwise perfect thing is also arranged.
Above-mentioned technology all is seen in report recently, as seen, wastewater and waste materials is handled the out of this world method of still not having intensification so far, does not more have the method that generally is applicable to vast rural area.
The present invention widely collect up to now municipal effluent and the chief of waste disposal method, they are biological treatment and the characteristics of utilizing object in conjunction with country sewage and rubbish are rich in organic matter, and pollute the unsuitable again high concentration of source point polydispersion and handle, must save the rural area characteristics of initial investment and overhead charges, the intensive processing and the resource utilization systems engineering (hereinafter to be referred as the pollution treatment engineering) of villages and small towns sewage and rubbish are proposed, this is environmentally friendly and conservation-minded society in rural development, makes agriculture-countryside-farmer's modern favorable to the people technology fast.
The pollution treatment engineering can be that adjacent a few village is shared, and also Ke Yi town, a few town are shared, and the processing power of each engineering is decided by the total amount of sewage in the service area and rubbish.
The choice of location of engineering will be distributed by local landform, summer most frequent wind direction, villages and small towns, road or the like is decided.In the ideal case, the engineering position is selected in service area than position intermediate, (assemble and the rubbish convenient transportation in low-lying district in order to sewage, but should avoid the flood district), the lee gauge of most frequent wind direction in summer (so that resident's not influence of contaminated air fully, but intensive area is difficult considers in the village).Figure of description 1 is the synoptic diagram of engineering addressing.100,90,80 is topographic contour among the figure.In the map sheet is wide slow mountain valley.3 fermentation ground are arranged in paddy.Their slope belows are polluted water land treatment zone (scope of irising out as dotted line).Fermentation vat goes up a slope or is several villages (figure bend block diagrams) on every side, and they receive rubbish and the sewage that ships in each village.Produce methane (another is standby) by two fermentation vats under the normal circumstances,, deliver to each family by pipeline again, for heating up water, cook and boiling feed, earth burning in winter heating supply etc. by the gas skirt collection methane of Chi Ding.China is except that Guangdong and Guangxi Provinces, and the temperature in winter is very low, and at this moment unfavorable can not can be that fermentation vat is heated by self-produced methane gas for the required temperature of high speed breeding of methanobacteria maybe.Even in Guangdong and Guangxi Provinces, natural temperature also not necessarily is fit to the optimum temps of growth methanotrophic bacterial strain.So regulate the fermentation vat temperature, also be necessary at any weather and area with self-produced methane.Rubbish and sewage under the suspicion aerobe fermentation of methanobacteria, output methane, and make the high temperature asepticize and handle.After organism decomposed totally, the residue after will ferment by the worm conveyer at the bottom of the pond was discharged, and at this moment, former rubbish and mud is asepticize, and remarkable decrement, can pick up classification by manually choosing: be mainly plastics defective goods, the residual body of metal and building materials rubbish, silt particle etc. on a small quantity.The recyclable utilization of preceding two classes, back two classes can directly be gone to pave the way and be filled out ditch.In addition, also has a small amount of shale in half sewage.Can build settling tank at pool output to this, its deposition is concentrated, this glaur is rich in potassium and phosphorus and calcium, is good fertilizer, can directly be applied to fruit tree etc.If have heavy metal or radioactivity then it to be mixed in the brick earth in the mud, allow them solidify in the brick body.This process oxious component is by " dilution ".If radioactivity still exceeds standard in the finished bricks, this brick that exceeds standard can be buried under the roadbed of newly-built highway, repaves stereotype above in case of necessity.
Through disliking the sewage after oxygen is handled, gravity flow enters the soil treatment zone.At this moment sewage is at the soil surface sluggish flow or the seepage flow that permeates the ground, and stream infiltrates the drop ditch of low side at last.This process, sewage are through aerobic treatment, and the absorption of filtration and root system of plant generally has been cleaned into qualified irrigation water.At a 1-2 who enables, often survey water quality, see whether it conforms with agricultural water or emission standard, handle again in case of necessity.After grasping the normal and rule of water quality, can change sampling Detection into.
The artificial selection of the plant community of soil treatment zone and cultivation: basic demand is that Quan Weizhao gives birth to or wetland plant, draft and woody collocation, is perennial herb and evergreen woody as far as possible entirely, and all is the kind of root system development.Cold district (the nearly all provinces and regions of China) can be built sun power large greenhouse (processing greenhouse, soil) in the winter time, under the condition that does not consume mineral energy and electric energy, keeps the high temperature or the constant temperature in winter.Also can consider to mend temperature in extremely cold subfrigid zone with methane.Through disliking the sewage after oxygen is handled, if wherein heavy metal etc. exceeds standard, and the aerobic treatment process can select this heavy metal species is had the plant of very strong absorption, sorption can not make water quality reaching standard the time, the greenhouse district is handled in companion planting in the soil, eliminate or the reduction heavy metal with them.
Producing that methane belongs to is a huge genus, the product CH of its various, subspecies
4The ability difference, also different to the adaptability of rubbish and sewage, for this reason, should from numerous methane kinds, accord with selecting and produce CH
4Strong and local rubbish of ability and mud are fit to the bacterial strain that it is bred at a high speed, measure the optimum culturing temperature of its (), with the temperature adjusting of fermentation vat, and reaching the optimal growth condition of this bacterial strain, and high yield CH
4Cultivate seed liquor with the fermenting jar in case of necessity, regularly with the bacterium liquid spray wine of logarithmic phase in fermentation vat, make this optimum strain bacterium colony of in fermentation vat, always having the advantage.
Whole pollution treatment engineering all is biological treatment, and this environment project is that main waste and sewage is very sophisticated, effective to organism, thereby does not have the subversiveness risk.The shortcoming of biological treatment is, it is subjected to the influence in season big, even in the Guangdong and Guangxi Provinces of warm summer heat of winter, its treatment effect in winter is not good yet; In cold area of other winter, biological treatment effect is bordering on zero (because of microorganism is stopped action, the physiological activity of plant is also extremely slow).This is the basic reason that biological treatment fails to popularize.
The present invention introduces the pollution treatment engineering with high yield of solar organic agricultural products and livestock and poultry products multi-functional large greenhouse technology, the principle of this technology is combined with the pollution treatment engineering practice, thereby make biological treatment be completely free of seasonal effect, and realize the temperature optimization of processing environment, thereby reach pollution treatment effect the most efficiently.Concrete grammar is: fermentation vat built up thing prolongs, and positive south elevation, towards the ceiling construction that has on southern gentle slope, south elevation is strengthened sunlight collecting with PMMA, and the sunlight in winter is all collected in the fermentation vat from sun to sun, causes the yeasting of four seasons normal temperature.The soil treatment zone is built up the sun power large greenhouse, and its south elevation is also strengthened sunlight collecting with PMMA, causes the plant growth environment of a four seasons normal temperature.
In the process object of pollution treatment engineering, domestic refuse relatively seldom, and sewage quantity is relatively very big, when entering fermentation vat, the normal temperature that newly enters (low temperature) sewage often makes yeasting cooling in the pond, thereby makes the active receiving low temperature effect of methanogen.This just needs heat to sewage in advance, is warmed to and the required temperature of fermenting (be generally 30 ℃ ±).For this reason, be introduced into the sewage warming dish from the sewage of source of sewage, sewage slowly flows through with pellicular water on this dish, plays part aerobic fermentation and aeration, but mainly is the acceptance process of heating.Thermal source is the sunlight that PMMA gathers.Warming dish is similar to the sun power large greenhouse, and its facade is towards the due south, and ceiling is to the due south plane inclined, and facade and ceiling face are strengthened daylighting in winter, (it refuses light in summer, it is too high to exempt from temperature) by PMMA.The heating installation that another thermal source of warming dish provides for the methane boiler, steam-heating pipe are layed in its bottom.It is excessive that this steam-heating pipe heat supply is mainly used in sewage quantity, and water temperature does not reach and mends temperature when requiring behind the warming dish of flowing through; Do not have sunlight at night, can this not heat when temperature reaches yet.Warming dish is big as far as possible, and is particularly long, and sewage was heated on dish with the extremely thin water layer long period, not only water heated but also play the part fermentation.The downstream direction of warming dish links to each other with fermentation vat, and the pellicular water after the heating can flow into a fermentation vat separately.Establish scraper plate on the dish, have the end to open the formula discharge door under the dish, go up solid, semisolid more for a long time when dish, available scraper plate enters fermentation vat with them.
Each fermentation vat all has helical conveyor, when fermentation vat at fermenting process, start helical conveyor, it plays stirring action.When the fermentation vat discharge door is opened, it will dislike the residue behind the aerobe fermentation to release fermentation vat, and the microscler settling tank outside relief outlet is also discharged, flowed through to half sewage of disliking oxygen to handle stays sludge silt in settling tank, and half clear water enters the soil and handles the greenhouse.
The whole technology of pollution treatment engineering all is biological treatment, so it is completely the most comprehensive to the processing of rubbish and sewage.Methanobacteria will consume a large amount of nitrogen in active procedure, phosphorus, potassium and trace element; The remaining mud (throw out) of its fermentation is also nitrogenous, phosphorus, calcium and trace element, and they can be used as organic fertilizer and send the orchard.Organic matter through disliking half clear water that aerobe fermentation handles and mineral manure are handled the greenhouse and are absorbed, adsorb by plant and filtered and adsorb by soil in the soil.
Clear water after the soil, greenhouse is handled has the drop water aeration dam in the downstream, clear water is done last purification.
Clear water through purifying can reach discharging or agricultural irrigation water standard.Water growing availability, breed usefulness also can supply resident's bath water and flushing supply.
Power is also seldom used in the not electricity consumption fully of pollution treatment engineering, and used power machine all adopts methane engine, and they comprise the water pump that promotes water level, worm conveyer, scraper plate machine and haul (methane) automobile that transportation is stirred.The CO of fixture discharging
2, available pipe is sent to the sun power large greenhouse that greenhouse and general applications are handled in the soil, impels plant yield-increasing as gas fertilizer.
The solid waste in rural area is wanted much less than the sewage of its discharging, and organic content is not high in the sewage, so the methane tolerance that rural area pollution treatment engineering is produced mainly will consume on the personal equipment of engineering, remaining methane is not enough to supply with resident living with hot.Will enlarge methane production, this certain gas deliverability that must strengthen the pollution treatment engineering will increase the raw material of making methane for this reason.Methane feed can be purchased local agricultural wastes such as stalk, also can enlarge the area that the greenhouse is handled in the soil, is raw material with the woody plant of its output.When planting object with these two kinds is raw material when making methane, fermentor cultivation can be gone out, insert on the occasion of the high grade methane bacteria liquid of logarithmic phase, enter fermenting tank for fermentation then.Obviously as long as the local resident needs with producing with heat, the methane production ability further can be enlarged, pollution treatment engineering has at this moment become bioenergy factory, and treating refuse and sewage are its attach feature.
Methane for the peasant household, can also use its burning boiler except that directly, and the steam of boiler generation can supply aforementioned warming dish usefulness, and mode that also can steam is transported to each peasant household and factory with pipeline.But, methyl hydride combustion also produces CO
2The wind energy resources of enriching area is being arranged, advising first-selected wind electricity boiler.Methane or important chemical material can be supplied with Organic Chemical Plant and produce many Chemicals.
In the Figure of description, Fig. 1 is a rural area pollution treatment engineering plot plan.Among the figure, 1 is position, villages and small towns (scope).2 are defeated sewer line.3 is warming dish.4 is fermentation vat.5 is settling bowl.6 for handling large greenhouse in the soil.7 is the drop water aeration dam.
Fig. 2 is the pollution treatment mechanical flow digram.Among the figure, 1 is rubbish and source of sewage.2 transport the path for rubbish.3 is sewage running piping.4 is the sewage distribution piping.5 is warming dish.6 is water leg.7 are the bin gate that begins to rehearse under the draining blowdown thing.8 is fermentation vat.9 is the collecting pipe on Chi Gai and top thereof.10 is effuser.11 are personal air-supply duct (supplying screw conveyer etc.).12 for supplying user's induction pipe.13 is the rubbish dispensing port.14 is that (but switch can discharge residue and half clear water after the anaerobic bacterium fermentation to the residue discharge outlet.Residue is discharged with the worm conveyor in the pond).15 is mudpan.16 is that half clear water advances the water-in that large greenhouse is handled in the soil.17 for handling large greenhouse in the sun power soil.18 drop water aeration dams.19 are the collection Rinsing Area.20 is water port.21 for supplying user's water port (or the water pipe that runs in).22 is the PMMA plane skylight of the positive south elevation of warming dish.23 is the PMMA plane skylight of the positive facade in the south of fermentation vat.24 for handling the PMMA metope of the positive south elevation of large greenhouse in the sun power soil.
Fig. 3 is the methane boiler.Wherein 1 is the enamel cauldron.2 is the methane nozzle.3 is heat accumulation refractory brick.4 is the transport methane pipe.5 is thermocouple.6 is the ground insulating layer.7 is water gauge.8 is heat preservation cooker lid.9 are defeated vapour pipe.
Claims (10)
1, intensive processing of villages and small towns rubbish and sewage and resource utilization green engineering is characterized in that:
A, rubbish and sewage are handled together;
B, handle with biological method;
C, dislike aerobe fermentation and soil to handle aerobic treatment with fermentation vat;
D, the four seasons are not consumed fossil energy, not electricity consumption;
E, need not any chemical agent;
F, the outstanding methane bacterial classification of screening are admixed the material plant body after the cultivation;
G, make full use of the organic and inorganic composition in rubbish and the sewage;
H, main products are methane, can be personal for technology, and peasant household uses and is industrial, can produce as required;
I, treated water can reach discharging or agricultural irrigation water standard;
J, except that with rubbish and the mud, also can utilize any plant to make raw material;
K, once invest little, and permanently effective;
L, required labour are few, and operation cost is low, and management is simple;
M, be applicable to various geography and weather condition;
N, there is not secondary pollution, friendly process and product.
2, according to the described feature of claim 1, sewage through preheating (warming dish be heated to 30 ℃ ±) after enter fermentation vat.
3, according to the described feature of claim 1, the sewage through heating enters fermentation vat and dislikes aerobe fermentation with rubbish, output methane.
4, according to the described feature of claim 1, establish worm conveyer in the fermentation vat, play and stir or the discharge effect.
5, according to the described feature of claim 1, rubbish sorts residue and utilize respectively again after the fermentation decrement.
6, according to the described feature of claim 1, half clear water after the methanogen effect through disliking oxygen enters oxide treatment and the plant treatment that large greenhouse is handled in the soil, reaches the standard of discharging or agricultural irrigation water.
7, according to the described feature of claim 1, warming dish, fermentation vat and at large greenhouse all with their facade of Due South, strengthen daylighting with PMMA sheet material.
8, according to the described feature of claim 1, winter heating dish, fermentation vat and large greenhouse are closed on every side, the enclosed environment of adding a cover above.
9, according to the described feature of claim 1, can supply methane as required, when methane content is very big, can enlarge project scale, until becoming biofuel factory.
10, according to the described feature of claim 1, except that utilizing rubbish and mud, also plant materials such as available stalk is made raw material.
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| CN200910119732A CN101525208A (en) | 2009-03-26 | 2009-03-26 | Rural wastewater and refuse intensive treatment and resource green engineering |
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| CN200910119732A CN101525208A (en) | 2009-03-26 | 2009-03-26 | Rural wastewater and refuse intensive treatment and resource green engineering |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786909A (en) * | 2010-03-12 | 2010-07-28 | 日照金禾生化集团有限公司 | Method for preparation of granular organic fertilizer by industrial floc sludge |
| CN101823795A (en) * | 2010-03-23 | 2010-09-08 | 南昌大学 | Technique for processing rural area non-point source pollution by controlling source (centralizing)-intercepting pollution (dredging)-reclaiming |
| CN102060582A (en) * | 2010-11-16 | 2011-05-18 | 北京林丰源生态园林绿化工程有限公司 | Recycling and emission reduction method of gases in sludge aerobic treatment |
| CN102690013A (en) * | 2011-03-21 | 2012-09-26 | 王鹤立 | Vertical ecological greenhouse technology for decentralized domestic wastewater treatment and resource recovery |
| CN102986481A (en) * | 2012-10-23 | 2013-03-27 | 无锡市喷特环保工程有限公司 | Method for heating vegetable greenhouse by using household garbage |
| CN109942077A (en) * | 2019-02-25 | 2019-06-28 | 杨帆 | A kind of high and cold high tourist attraction pollution abatement system above sea level |
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2009
- 2009-03-26 CN CN200910119732A patent/CN101525208A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786909A (en) * | 2010-03-12 | 2010-07-28 | 日照金禾生化集团有限公司 | Method for preparation of granular organic fertilizer by industrial floc sludge |
| CN101786909B (en) * | 2010-03-12 | 2012-12-26 | 日照金禾博源生化有限公司 | Method for preparation of granular organic fertilizer by industrial floc sludge |
| CN101823795A (en) * | 2010-03-23 | 2010-09-08 | 南昌大学 | Technique for processing rural area non-point source pollution by controlling source (centralizing)-intercepting pollution (dredging)-reclaiming |
| CN102060582A (en) * | 2010-11-16 | 2011-05-18 | 北京林丰源生态园林绿化工程有限公司 | Recycling and emission reduction method of gases in sludge aerobic treatment |
| CN102060582B (en) * | 2010-11-16 | 2012-05-16 | 北京林丰源生态园林绿化工程有限公司 | Recycling and emission reduction method of gases in sludge aerobic treatment |
| CN102690013A (en) * | 2011-03-21 | 2012-09-26 | 王鹤立 | Vertical ecological greenhouse technology for decentralized domestic wastewater treatment and resource recovery |
| CN102986481A (en) * | 2012-10-23 | 2013-03-27 | 无锡市喷特环保工程有限公司 | Method for heating vegetable greenhouse by using household garbage |
| CN109942077A (en) * | 2019-02-25 | 2019-06-28 | 杨帆 | A kind of high and cold high tourist attraction pollution abatement system above sea level |
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Application publication date: 20090909 |