Classifications

• • C—CHEMISTRY; METALLURGY
  • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • C02F3/00—Biological treatment of water, waste water, or sewage
  • C02F3/30—Aerobic and anaerobic processes
• • 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
• • 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

Definitions

• the present invention relates according to the Hauptanspruc ⁇ with a system for collecting, transporting and recyclers, 3ioab vian VCR domestic waste water, Desikaligann and other biodegradable substances, in particular mi ⁇ a piping system for transporting the said waste substances.
• Another disposal system uses drainage through channels with a slope to the sewage treatment plant. Disadvantages are the low flow rates and the resulting deposits as well as the fact that the existing older sewer systems are often defective and lose considerable amounts of dirty water on the way to the sewage treatment plant, which also pollute the groundwater. Furthermore, lifting devices ⁇ must also be wiped on the way to the wastewater treatment plant, because there is usually no continuous gradient. The discharge of the dirty water via small-sized pressure lines is another practiced disposal. This form of disposal is generally okay, but it becomes unprofitable if the pressure drainage has to cover distances of many kilometers. The alternative system according to the invention using pressure drainage is therefore based on decentralization of the recycling facilities.
• Biowaste has recently been collected in so-called “green” or “brown” bins from consumers and transported to the landfill, incineration plant, commutation plant or biogas plant with refuse collection vehicles.
• the disadvantage here is that the "green” or “brown” bin with longer pick-up rhythms, due to the annoying formation of odors and vermin, especially in summer, is rejected by the population, and also causes very high costs when collecting.
• Another disadvantage is that a possible disposal of the bio-waste is not in line with the politically desired hierarchy of waste “avoid - recycle - eliminate 1 ', a possible recycling in composting plants is extremely costly because of the necessity of the frequent conversion of the rotting quantities.
• a disadvantage of classic composting is the fact that large amounts of usable energy are lost uselessly and therefore the waste is only partially recycled, which means that "only composting" is in a much worse position in the aforementioned waste hierarchy than the alternative system according to the invention .
• the alternative system according to the invention is therefore based on the largely fully automatic treatment and recycling of the bio-waste in emission-free, closed systems together with the domestic wastewater.
• coarse green cuts and branches are delivered and collected by the consumer at the recycling facilities, where they are shredded to defined grain sizes and fully recycled.
• the treatment of leftovers causes great problems with the previously known types of disposal or recycling.
• the acceptance of food waste in "green” or “brown” tons is often excluded.
• the only known and reliable type of disposal would be the disposal in rendering facilities.
• the alternative system according to the invention permits the problem-free collection, transport and recycling of raw and cooked food residues together with domestic dirty water and organic waste. It is therefore an object of the present invention to provide a device and a method which are capable of utilizing biodegradable substances almost completely in terms of energy and reducing the operating costs of the system.
• the domestic sewage-contaminated waste water together with organic waste and food residues are brought together and processed in small, decentralized, building-near, fully automatic collectors, so that it can be fed as slurry with defined grain sizes via small-dimensioned pressure lines directly to the next treatment plant.
• the liquid part of the domestic dirty water serves as a means of transport for the biomass. Sorting of contaminants is already carried out in the collection stations, these are removed by the service at regular intervals and sent for residual waste treatment.
• the processed waste mixture is fed to the recycling facility via the pressure drainage lines. To increase the flow rates and to avoid anaerobic fermentation in the piping system, it is flushed at regular intervals using compressed air.
• the waste mixture first passes through an Hvc ej ⁇ is réelleskaskade_ and is then in a buffer container, preferably with an agitator, " caught, " the shredded material from the green waste delivery is continuously fed in defined doses and serves to improve the structure of the fresh compost obtained during further processing.
• an aerobic treatment of the mixture with the supply of atmospheric oxygen can already take place in the buffer container.
• the solid substance of the mixture can be squeezed out after the treatment has been carried out and separated out and processed as fresh compost of low rotting.
• the highly biologically loaded residual liquid, or in the case of single-stage processing, the entire mixture is fed from the collecting container into one or more anaerobic reactors, where fermentation with the help of bacteria results in methanation.
• the methane gas quantities obtained in the alternative system according to the invention are converted into electrical energy via suitable internal combustion engines and coupled current generators, which are fed into the general power grid.
• the heat generated by the thermal power coupling is supplied to nearby consumers via district heating networks for heating.
• the remaining solids in the anea reactor are pressed out and fed to the compost as fresh compost of low rotting for further processing in conventional composting plants.
• the quantities of water remaining after the solids have been pressed off, which are no longer biologically loaded, are processed and fed to a collection container. From there, they are used as non-edible service water via a separate water supply network for consumers such as toilets and car washes. Nurseries, water-consuming industries, etc. fed for a fee.
• Fi 1 is a block diagram of a section of the system according to the invention.
• FIG. 2 shows a schematic flow diagram of the system according to the invention
• Fig. 4 is a block diagram of the drum screen
• FIG. 6 shows a block diagram of the anaerobic high-load system
• FIG. 7 is a block diagram of the anaerobic fermentation plant
• FIG. 9 shows a further block diagram of a flotation plant
• FIG. 10 shows a block diagram of a pond sewage treatment plant
• FIG. 11 is a block diagram of the system according to the invention.
• the alternative system is based on the core idea of disposing of biological kitchen waste and food residues together with the domestic dirty water at the point of their origin via a closed pressure drainage system.
• Carving mechanisms are installed above or under the spouts of the kitchens, which, with the addition of water, shred biological kitchen waste and food waste and feed it into the domestic sewage network.
• the wastewater mixture of dirty water, faeces, biological kitchen waste and food residues is shredded again with cutting-wheel pressure pumps in pump shafts and from there it is fed to a wastewater treatment plant tailored to the specific conditions via a closed pressure drainage system.
• the treatment system of the alternative system basically consists of a methanation plant that fermentes the wastewater mixture and generates electricity or secondary heat and cold from the biogas mixture obtained, in addition to various clarification stages that clarify the wastewater down to process water quality and a composting plant that stores the remaining biological Residual waste composted.
• the contaminants in the processing plant can possibly. thermal recycling or orderly disposal.
• the processing plant can be designed for the special requirements of feed-in of certain industries and commercial areas.
• Waste water and waste are disposed of in an unregulated manner, especially in large tourist areas in southern countries.
• the alternative system combines the currently known and proven techniques for an independent, orderly disposal and recycling of biological waste and domestic waste water.
• a central drinking water supply can be installed cost-effectively parallel to the pressure drainage system.
• biogas mixture obtained By utilizing the biogas mixture obtained, there are multiple options of use; for example, methanol production, electricity, district heating and / or cooling.
• Controlled input of pollutants produces large quantities of unpolluted compost that can be applied to agricultural land.
• the individual small pumping stations convey the wastewater to the main pumping stations. From here, the wastewater is hermetically sealed and fed to the wastewater treatment with compressed air.
• the pipelines for wastewater production can also be integrated into an existing old sewer network due to their much smaller cross-section.
• Another advantage is the aerobic treatment, which prevents pre-acidification.
• Coarser particles in the wastewater are separated using a drum shear sieve (gap width 1 mm).
• the filtrate from the sieve is fed to the second pre-cleaning stage.
• the screenings are freed of metallic impurities and fed to a shredder (Gorator or the like).
• the screenings are homogenized together with cut green from plantations or the wastewater treatment plant and fed to anaerobic fermentation.
• the flotation plant removes most of its particulate matter from the wastewater.
• the rest of the organic matter is in solution or in biodegradable microparticles.
• Flotate and sediment are added to the organic matter homogenized by the Gorator, mixed with a simple mixer and fed to anaerobic fermentation.
• the design of the anaerobic treatment levels is decided here.
• the clear on the flotation plant which is largely freed from particulate matter, is fed to an anaerobic high-load biology.
• the sludge is either thickened by flotation and sieve belt filter or almost dry material cut green.
• the separation from the main water flow has reduced the volume to an economical level for the treatment. There is also a sufficiently high TS content.
• the activated sludge is separated off and split into reverse sludge (back to aerobic biology) and excess sludge.
• the sedimentation generally consists of round or rectangular sedimentation tanks with soil and floating sludge evacuation or Emscher or Dortmund wells with sludge discharge from a pointed swamp cone.
• Flotation plants require a higher level of technical effort (actually only the air saturation system), but they have significant advantages: only a quarter of the pool volume required for sedimentation plants
• the pond sewage treatment plant has several functions:
• the pond treatment plant should be designed in several stages. Aeration of one or more stages for better biodegradation in the root system should be considered.
• the water draining from the pond kärstrom is of good service water quality, which is more than sufficient for irrigation systems.
• Another treatment e.g. B. for use as Toiiettenspüiwasser, can be considered.
• the aim of the alternative system is to treat wastewater as a whole, with the resulting partial flows (separated sludge, gases, runoff) being used effectively.
• the pre-shredded food waste and the sanitary wastewater are fed to a pump station that is directly assigned to the person responsible.
• These pumps are equipped with a shredder for further shredding and homogenization.
• the individual small pumping stations convey the wastewater to the main pumping stations.
• wastewater is hermetically sealed and fed to the wastewater treatment with compressed air.
• the pipes for wastewater production can also be integrated into an existing old sewer network due to their much smaller cross-section.
• the aerobic environment of the extraction not only prevents pre-acidification, but also generates aerobic biological activity.
• This treatment is continued in a ventilated and stirred equalization tank upstream of the actual wastewater treatment plant.
• Coarser particles in the wastewater are separated by means of a drum shear sieve (gap width 1 mm) but not disposed of as with conventional wastewater treatment technology.
• the screenings are freed of metallic contaminants and fed to a shredder.
• the screenings are homogenized and fed to anaerobic fermentation.
• the rest of the organic matter is in solution or in biodegradable microparticles.
• the clear run is therefore suitable for degradation in an anaerobic high-load biology.
• Flotate and sediment are added to the homogenized organic material by the crusher, mixed with a simple mixer "and thus the anaerobic fermentation is supplied.
• the anaerobic treatment and thus the energy (methane) production is divided into two sub-stages.
• the anaerobic biology is fed with the particle-free clear run of the flotation plant.
• the dissolved organic substances can be broken down in a much shorter time than particulate matter in a conventional digestion tower.
• the energy gained (methane) relieves the pressure on the downstream aerobic stage.
• the sludges are either thickened by flotation and sieve belt filters or almost dry material, e.g. B. Cut green.
• the separation from the main water flow has reduced the volume to an economical level for the treatment.
• the activated sludge is separated and split into return sludge (back into the aerobic biology and excess sludge.
• flocculants polymer
• the stabilized sludge from the anaerobic digestion can be thickened with a belt press.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Organic Chemistry (AREA)
• Environmental & Geological Engineering (AREA)
• Hydrology & Water Resources (AREA)
• Engineering & Computer Science (AREA)
• Biodiversity & Conservation Biology (AREA)
• Water Supply & Treatment (AREA)
• Microbiology (AREA)
• Chemical & Material Sciences (AREA)
• Treatment Of Sludge (AREA)
• Processing Of Solid Wastes (AREA)
• Refuse Collection And Transfer (AREA)
• Fertilizers (AREA)
• Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
• Disintegrating Or Milling (AREA)
• Sewage (AREA)
• Activated Sludge Processes (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=7894252

Family Applications (1)

Country Status (10)

Families Citing this family (5)

Family Cites Families (6)

• 1999
  • 1999-01-14 DE DE19901214A patent/DE19901214A1/de not_active Withdrawn
• 2000
  • 2000-01-14 AU AU58018/00A patent/AU5801800A/en not_active Abandoned
  • 2000-01-14 AP APAP/P/2000/001957A patent/AP2000001957A0/en unknown
  • 2000-01-14 WO PCT/DE2000/000114 patent/WO2000061504A2/de not_active Application Discontinuation
  • 2000-01-14 OA OA1200000253A patent/OA11768A/en unknown
  • 2000-01-14 DE DE10080837T patent/DE10080837D2/de not_active Expired - Fee Related
  • 2000-01-14 JP JP2000610784A patent/JP2003532811A/ja active Pending
  • 2000-01-14 CZ CZ20003830A patent/CZ20003830A3/cs unknown
  • 2000-01-14 BR BR0004204A patent/BR0004204A/pt not_active Application Discontinuation
  • 2000-01-14 IL IL13848500A patent/IL138485A0/xx unknown
  • 2000-01-14 EP EP00943527A patent/EP1068153A1/de not_active Withdrawn

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events