
	Where results make sense

Topic: Biodigester

Related Topics

Electricity generation

Energy directory

Hydrogen

Methanol economy

Vacuum energy

Permanent magnet motor

In the News (Fri 11 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Biodigester - Wikipedia, the free encyclopedia
		A biodigester is a machine used for the production of biogas, a mixture of gases created by methanogenic bacteria digesting organic matter in an anaerobic condition.
		A biodigester is often also referred to as a biogas chamber, a biogas plant or an anaerobic reactor.
		Biodigesters also produce an effluent slurry that is used as a fertilizer in a range of agricultural applications.
	en.wikipedia.org /wiki/Biodigester (183 words)

	Pumps and Pressure Car Wash Equipment
		Biodigesters will colonize the tank/pond, multiply by a factor up to 1,000 times within a few hours, take away the nutrients that encourage algae (thus eliminating unsightly growth on walls and surfaces), and liberate carbon dioxide for oxygenating plants.
		Biodigester bacteria are selected for their ability to out compete the bacteria which produce hydrogen sulfide thereby eliminating odors.
		Biodigesters bacteria/enzyme formulation is designed to supply bacteria and enzymes which work on nutrient sources throughout the complete water column, including the pond bottom.
	www.pumpsandpressure.com /wastewater/hbd-c.htm (1881 words)

	[No title]
		Recent developments have focused on integrating the biodigester within the farming system and have demonstrated that the biodigestion process leads to major improvements in the value of the livestock manure as fertilizer for crops and ponds growing water plants or fish.
		Biodigesters have been considered primarily as a means of producing a combustible gas from waste organic matter, derived from animals or people.
		The effluent is gravity fed to a secondary chamber.
	www.mekarn.org /procbiod/prest.htm (1839 words)

	C:\FAO\recycle.htm (Site not responding. Last check: 2007-11-03)
		The biodigester sub-system, and the pond, are not essential for ensuring that plant nutrients are not lost as the essential cycle is between the crop and the livestock.
		For a biodigester that is 6 m long the need is 15 m of tube (two tubes are used one inside the other) and 75 cm is required at each end for fixing the tube to the inlet and outlet pipes.
		For larger biodigesters with required liquid volume in the range of 12 to 24 cubic metres then it is better to use tubular polyethylene of 1.25 m diameter, which for any given length will increase by a factor of 2.4 the volume compared with a diameter of 80cm.
	www.p2pays.org /ref/09/08882.htm (6251 words)

	[No title]
		Raw cow manure and biodigester effluent were used as the fertilizers with five levels of N (0, 50, 100, 150 and 200 kg/ha), according to a 2 x 5 factorial arrangement with 2 replications per treatment with the split-plot design.
		Fertilizing the pond water with effluent from biodigesters charged with cow manure supported higher yields of duckweed biomass, which was of higher crude protein content, as compared with the use of the raw cow manure.
		Biodigester effluent versus manure, from pigs or cattle, as fertilizer for duckweed (Lemna spp.).
	ftp.sunet.se /wmirror/www.cipav.org.co/lrrd/lrrd16/3/lam16017.htm (2373 words)

	The breakdown on biodigesters - April 1, 2004
		Biodigestion also is a safe way to dispose of animals infected with other foreign animal diseases, such as bovine tuberculosis and brucellosis, Dr. Shull said.
		Linn A. Wilbur, the USDA area veterinarian-in-charge of Wisconsin, said the $900,000 biodigester in Wisconsin, which is built into an 18-wheeler, is a regional resource that the USDA could use to dispose of animal carcasses in an animal disease outbreak anywhere in the Midwest.
		In addition to being cost-effective, the biodigestion is less harmful to the environment and the health of staff than other methods, according to Robert L. Hockman, the associate director for facilities at the University of Florida College of Veterinary Medicine.
	www.avma.org /onlnews/javma/apr04/040401l.asp (807 words)

	Livestock Research for Rural Development (15) 10 2003
		Biodigester effluent can be applied to crops (cassava, rice field, and other perennial crops), vegetables (salad, water spinach, tomatoes and cabbage) and in ponds (fish or water plants).
		Three biodigesters were made from tubular polyethylene film (internal diameter 0.64 m), enclosed in brick walls (Photo 1), with internal measurements of 60 cm wide and 70 cm high to ensure the correct dimensions of the digesters, and to provide a liquid volume in the proportion of 75% of biodigester volume.
		A leakage of gas from biodigester 2 was observed during the second week of adaptation and it was decided to replace the plastic.
	www.mekarn.org /msc2003-05/miniprojects/webpage/hangctu.htm (2200 words)

	template.gif
		The introduction of the low-cost plastic biodigester, based on the use of tubular polythene film, has successfully positioned this technology within reach of a greater number of end users (it is estimated that there are more than 30 000 users of this technology in Vietnam).
		Developers focused on integrating the biodigester within the farming system and have demonstrated that the biodigestion process leads to major improvements in the value of the livestock manure as fertilizer for crops, as well as for water plants or fish cultivated in ponds.
		This is because the gas pressure in the biodigester is very low and if the biodigester is situated some distance away from the kitchen, the flow rate along the gas line will be too slow and insufficient to maintain the flame in the stove.
	www.farmingsolutions.org /successtories/stories.asp?id=188 (1250 words)

	INNOVATIVE EXPERIENCES FOR OTHER DEVELOPING COUNTRIES
		Biodigesters are airtight containers in which wastewater and faeces are fermented by bacteria.
		However, biodigester effluents must be used with caution as a fertiliser for vegetables since some pathogens might persist after washing.
		biodigester is enough for three to six pigs producing between 150 and 300 litres of residual water each day.
	ftp.sunet.se /wmirror/www.cipav.org.co/lrrd/lrrd11/1/cha111.htm (4116 words)

	Animal Carcasses (Site not responding. Last check: 2007-11-03)
		Biodigesters use alkaline hydrolysis to decompose animal carcasses in the first stage of the overall operation.
		The subsequent discovery that biodigesters destroy prions, coupled with a decline in the use of incinerators, has buoyed their popularity.
		Biodigestion also is a safe way to dispose of animals infected with other foreign animal diseases, such as bovine tuberculosis and brucellosis.
	biofuelsystem.com /subpage.html (247 words)

	Auto Laundry News Featured Article
		Due to the life cycles of bacteria, biodigester products start to lose effectiveness in 10 to 14 days and additional product must be added periodically to reinforce the colony with fresh bacteria and enzymes.
		Biodigesters break down and consume contaminants such as organic matter, oils, grease, and other hydrocarbons like dissolved solvents and heavy and light fuels.
		Biodigesters will propagate in the sump's bottom solids (sludge), reducing them by up to 50 percent, liberating oils and grease, and digesting them.
	www.carwashmag.com /pdf/march_2003/print/operations.cfm (1641 words)

	D:\CDEnglish\Biogas\10text.htm
		Biodigesters can play a pivotal role in integrated farming systems by reducing health risks, facilitating control of pollution and at the same time adding value to livestock excreta through production of biogas and improved nutrient status of the effluent as fertilizer for ponds and crop land.
		If the biodigester trench is 10m long then an additional 75cm should be added to each end of the plastic tube to allow for wrapping the ends over the inlet pipes.
		Experience with the plastic biodigesters indicates that the plastic has to be changed after about 2 to 4 years mainly because of this problem.
	www.fao.org /WAICENT/FAOINFO/AGRICULT/AGA/AGAP/FRG/Recycle/biodig/manual.htm (4836 words)

	membership
		A legitimate criticism of the plastic biodigester (using tubular polethylene film) in a village situation is that it is easily broken by scavenging animals, which are not always easy to control.
		The simple construction of the “hybrid” biodigester facilitates construction and the skills to do this are available at household level in almost all villages, thus the labour can in most cases be provided by the family members.
		The principle of the "hybrid" biodigester is that "biogas" is lighter (has lower density) than air, thus it will migrate (rise) to the highest points in the biodigester system.
	www.utafoundation.org /utacambod/r&dbiod/biodig.htm (1465 words)

	[No title]
		The biodigester is a technology that takes advantage of excrement from animals and humans in order to transform it into BIOGAS (methane gas) as a source of fuel, and ORGANIC FERTILIZER.
		The biodigester should be close to the animals, and it is also recommended to connect any human latrines to the biogas plant to eliminate another source of pollution.
		The effluents from the biodigester can be used directly as organic fertilizer or to produce aquatic plants, that then can be used to feed pigs or produce compost.
	www.ias.unu.edu /proceedings/icibs/ibs/info/ecuador/install-polydig.htm (1628 words)

	ZERI: Pigs (Site not responding. Last check: 2007-11-03)
		The methane gas from the biodigester is captured, bottled and used as an energy source for lighting and cooking.
		The biodigester is the heart of the system, removing over 60% of the BOD (biological oxygen demand) and COD (chemical oxygen demand) of the waste within 3 to 6 days through anaerobic processes.
		After the waste has gone through the biodigester, the remaining 40% of the BOD and COD is handled by using aerobic processes in shallow pools.
	www.zeri.org /index.cfm?id=projectFiji (521 words)

	BIODIGESTER (Site not responding. Last check: 2007-11-03)
		C. This is the component which acts as inoculum (seed material) to the biodigester and converts the organic waste into methane and carbon dioxide.
		Biodigester serve as reaction vessel for biomethanation and provides the anaerobic conditions and required temperature for the bacteria.
		The optimum temperature is maintained by microbial heat, insulation of the reactor and solar heating.
	www.drdo.org /labs/dls/drde/products/biodigester.htm (308 words)

	[No title]
		Biodigesters play a crucial role in the conversion of organic matter to methane-rich biogas, with positive impacts on the environment and on human and animal health.
		The biodigesters were charged daily at exactly the same time and with the amounts of fresh manure and water according to the treatments and the liquid volume of the biodigester (Tables 3 and 4).
		At the beginning, the biodigesters were inoculated with 140 litres of effluent from another biodigester, followed by 5 kg of fresh pig manure and 36 litres of water per day for 10 days.
	ftp.sunet.se /wmirror/www.cipav.org.co/lrrd/lrrd15/7/sant157.htm (2160 words)

	Biodigester: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-11-03)
		A biodigester is a machine used for the production of biogas biogas quick summary:
		A biodigester is often also referred to as a biogas chamber, EHandler: no quick summary.
		The fundamental principle is that the biodigestor is air and water tight.
	www.absoluteastronomy.com /encyclopedia/b/bi/biodigester.htm (245 words)

	Biodigester effluent versus manure from pigs or cattle as fertilizer for production of cassava foliage
		Biodigester effluent versus manure from pigs or cattle
		A study was therefore planned to compare fresh manure and biodigester effluent on yield of cassava leaves and on the maintenance of soil fertility.
		The results of the experiment clearly showed the superiority of the biodigester effluent compared with the fresh manure for biomass yield and protein yield of the foliage of the whole (aerial) plant and the leaf and petiole fraction (Table 2 and Figure 1).
	www.cipav.org.co /lrrd/lrrd10/3/chau1.htm (3154 words)

	[No title] (Site not responding. Last check: 2007-11-03)
		At Cali, Colombia, a biodigester is an airtight container in which feces and wastewater are fermented by bacterias under anaerobic conditions.
		The biodigester that is continually being reasearched and promoted is a polyethylene tube which is easy to install and has a low cost.
		The main advantages of the biodigester are: 1) Generation of energy (methane) from wastes, 2) Low cost, 3) Good quality of the effluent as fertilizer and 4) It is easy to install and to operate.
	www.pitt.edu /~Super1/lecture/lec11231/009.htm (114 words)

	Biodigesters
		HBD-C - Biodigesters Clarifier eliminates algae and organics that cloud water, decreases bottom solids, nitrates, nitrites, increases oxygen for fish, increases water clarity dramatically.
		Biodigesters remove the stink in reclaimed water once and for all.
		The Biodigesters are ready to go to work as soon as they are added to the waste water.
	www.hydroblaster.com /bugs (440 words)

	Biomass to cogeneration - Earthscan COSPP Technologies
		The dairy-shed wastes are fed into a biodigester system in which they will be converted into biogas in a process analogous to that occurring in the rumen (the first stomach of a cow) in which organic matter is broken down anaerobically by mixed microbial populations.
		A biodigester is essentially a heated tank into which the manure and water slurry is directed.
		A proportion of the heat output of the cogeneration unit is fed to the biodigester to maintain optimum thermal conditions.
	www.earthscan.co.uk /news/article/mps/uan/474/V/4/sp (2446 words)

	ENN: Environmental News Network [[Today's News Full Story ]]
		Off the grid as far as most utilities are concerned, her household and 29 others in this village get a steady supply of clean energy from human and animal waste, using a device that not only makes cooking less of a chore, but also keeps their gardens flourishing and helps save the forests.
		At the center of the experiment is a device called a biological gas digester -- or biodigester -- which converts a byproduct of manure into cooking gas.
		Twenty-five biodigesters were installed, serving 30 of the village's 130 families.
	www.enn.com /today.html?id=7814 (823 words)

	Biodigester effluent as protein supplement for indigenous
		Liquid biodigester effluent was successfully fed to weaned calves supplying 14.4 g of N daily and increasing the daily N balance by 4.4 g (Ørskov, personal communication).
		Marchaim (1992) suggested that most of the increase in the N content of biodigester effluent is due to an increase in the non-ammonia fraction.
		Effluent from a biodigester charged with cattle manure is consumed by growing Bos indicus bulls, without harmful effects, provided there is an extended period of adaptation (at least 10-12 weeks) and it is mixed with other supplements such as wheat bran (1 kg/day) and molasses (0.3 kg/day).
	www.fao.org /waicent/FaoInfo/Agricult/aga/AGAP/FRG/FEEDback/lrrd/lrrd11/2/chow112.htm (2448 words)

	House Research Bill Summary
		Contains definitions for "flwater," "greywater," "sewage," and "biodigester and water reclamation systems." The latter is defined as a residential system that collects and segregates greywater from flwater to be mechanically or biologically treated for reclamation and safe consumptive use, or discharge above or below the ground.
		Requires that biodigester and water reclamation systems meet certain wastewater treatment requirements, and that the two flwater and greywater waste streams be treated to standards contained in state and federal rules.
		C ontains the approval needed for biodigester and water reclamation systems to operate, including compliance with state rules, surface discharge requiring a permit, and reuse of treated effluent meeting state health standards.
	www.house.leg.state.mn.us /hrd/bs/83/hf2040.html (327 words)

	Evaluation of fertilizer of fresh solid manure, composted manure or biodigester effluent for growing Chinese cabbage ...
		In Trial 2, the cabbage fertilized with biodigester effluent was higher in moisture and in crude protein compared with plants fertilized with raw manure solids.
		The experimental materials were taken from an anaerobic biodigester (Photo 1) charged with the liquid and small particles after pumping the raw manure (from cattle and buffaloes) through a screen which retained the solid materials (Photo 2).
		In Trial 2, the cabbage fertilized with biodigester effluent was higher in moisture and in crude protein compared with plants fertilized with raw manure (Table 11; Figure 8).
	www.cipav.org.co /lrrd/lrrd17/3/sant17026.htm (2382 words)

	Minnesota Statutes 2004, 115.60 (Site not responding. Last check: 2007-11-03)
		(b) A manufacturer of biodigester and water reclamation systems technology must provide training approved by the commissioner of the agency to provide certification for persons in the state to properly install, maintain, operate, and monitor systems.
		(a) Permitting of biodigester and water reclamation systems are subject to any local government requirements for installation and use subject to the commissioner's approval.
		Biodigester and water reclamation systems are exempt from all state and local requirements pertaining to Minnesota Rules, chapter 4715, until May 1, 2014.
	www.revisor.leg.state.mn.us /data/revisor/statutes/2004/115/60.html (367 words)

	A Small-Scale Biodigester Designed and Built in the Philippines by Gerry Baron
		My biodigester which only costs about 80 % today for what they paid for in 2001 continues to appear to be a great idea for the Philippines.
		The Biodigester I designed is made of 1.5 mm HDPE or High Density Polyethylene.
		BioDigester for the "palengke" to digest vegetable scraps and provide some kitchenettes with cheap cooking gas.
	www.habmigern2003.info /biogas/Baron-digester/Baron-digester.htm (1446 words)

Try your search on: Qwika (all wikis)