Parts of a Biogas Plant - Revision history

Ranisha at 09:01, 8 April 2015

2015-04-08T09:01:08Z

Show changes

Ranisha: /* Influent Collecting Tank */

2015-04-08T08:55:40Z

Influent Collecting Tank

Wiki Gardener: /* Further Information */

2015-02-18T11:32:50Z

Further Information

Wiki Gardener at 12:05, 13 February 2015

2015-02-13T12:05:51Z

Show changes

Ranisha at 10:17, 11 November 2014

2014-11-11T10:17:26Z

Ranisha: /* Gas Analysis Equipment */

2014-10-31T12:54:56Z

Gas Analysis Equipment

Ranisha: /* Valves */

2014-10-31T12:54:22Z

Valves

Ranisha: /* Water Traps */

2014-10-31T12:53:36Z

Water Traps

Ranisha: /* Water Traps */

2014-10-31T12:52:31Z

Water Traps

Ranisha: /* Biogas Piping */

2014-10-31T12:51:51Z

Biogas Piping

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 Depending on the available building material and type of plant under construction, different variants of the individual components are possible. The following (optional) components of a biogas plant can also play an important role and are described seperatly: Heating systems, pumps, weak ring.
 <br/>
 = Influent Collecting Tank<br/> =
 {| cellpadding="10" border="0" align="right" class="IMGright" style="width: 220px"
 |-
-−
+|
-[[File:Bgfixeddomeinst.jpg|thumb|right|200px|Installation of a fixed-dome plant in Thailand: The influent collecting tank is in front of the photo, the digester and the outlet are located behind it.<ref>Photo: Kossmann (gtz/GATE)</ref>]]<br/>
+[[File:Bgfixeddomeinst.jpg|thumb|right|200px]]<br/><br/>
 <br/>
 |}
 <u>Size and Homogenization</u><br/>
-Fresh substrate is usually gathered in an influent collecting tank prior to being fed into the digester. Depending on the type of system, the tank should hold one to two days' substrate. An influent collecting tank can also be used to homogenize the various substrates and to set up the required consistency, e.g. by adding water to dilute the mixture of vegetable solids (straw, grass, etc.), or by adding more solids in order to increase the bio-mass. The fibrous material is raked off the surface, if necessary, and any stones or sand settling at the bottom are cleaned out after the slurry is admitted to the digester. The desired degree of homogenization and solids content can be achieved with the aid of an agitator, [[Parts of a Biogas Plant#Pumps|pump]] or chopper. A rock or wooden plug can be used to close off the inlet pipe during the mixing process.
+'''<u>Size and Homogenization</u>'''<br/>Fresh substrate is usually gathered in an influent collecting tank prior to being fed into the digester. Depending on the type of system, the tank should hold one to two days' substrate. An influent collecting tank can also be used to homogenize the various substrates and to set up the required consistency, e.g. by adding water to dilute the mixture of vegetable solids (straw, grass, etc.), or by adding more solids in order to increase the bio-mass. The fibrous material is raked off the surface, if necessary, and any stones or sand settling at the bottom are cleaned out after the slurry is admitted to the digester. The desired degree of homogenization and solids content can be achieved with the aid of an agitator, [[Pumps_for_Biogas_Plants|pump]]&nbsp;or chopper. A rock or wooden plug can be used to close off the inlet pipe during the mixing process.<br/>
 <br/>
-<u>Location</u>
+<br/>'''<u>Location</u>'''<br/>
 A sunny location can help to warm the contents before they are fed into the digester in order to avoid thermal shock due to the cold mixing water. In the case of a biogas plant that is directly connected to the stable, it is advisable to install the mixing pit deep enough to allow installation of a floating gutter leading directly into the pit. Care must also be taken to ensure that the low position of the mixing pit does not result in premature digestion. For reasons of hygiene, toilets should have a direct connection to the inlet pipe.
-<br/>
+A sunny location can help to warm the contents before they are fed into the digester in order to avoid thermal shock due to the cold mixing water. In the case of a biogas plant that is directly connected to the stable, it is advisable to install the mixing pit deep enough to allow installation of a floating gutter leading directly into the pit. Care must also be taken to ensure that the low position of the mixing pit does not result in premature digestion. For reasons of hygiene, toilets should have a direct connection to the inlet pipe.<br/>
 <u>Inlet and Outlet</u>
-The inlet (feed) and outlet (discharge) pipes lead straight into the digester at a steep angle. For liquid substrate, the pipe diameter should be 10-15 cm, while fibrous substrate requires a diameter of 20-30 cm. The inlet and the outlet pipe mostly consist of plastic or concrete.
+<br/>'''<u>Inlet and Outlet</u>'''<br/>
 <br/>
-<u>Position</u><br/>
+The inlet (feed) and outlet (discharge) pipes lead straight into the digester at a steep angle. For liquid substrate, the pipe diameter should be 10-15 cm, while fibrous substrate requires a diameter of 20-30 cm. The inlet and the outlet pipe mostly consist of plastic or concrete.<br/>
 Both the inlet and the outlet pipe must be freely accessible and straight, so that a rod can be pushed through to eliminate obstructions and agitate the digester contents. The pipes should penetrate the digester wall at a point below the lowest slurry level (i.e. not through the gas storage). The points of penetration should be sealed and reinforced with mortar.
-The inlet pipe ends higher in the digester than the outlet pipe in order to promote more uniform flow of the substrate. In a [[Types of Biogas Digesters and Plants#Fixed-dome Plants|fixed-dome plant]], the inlet pipe defines the bottom line of the gas-holder, acting like a security valve to release over-pressure. In a [[Types of Biogas Digesters and Plants#Floating-drum Plants|floating-drum plant]], the end of the outlet pipe determines the digester's (constant) slurry level.
+<br/>'''<u>Position</u>'''<br/>Both the inlet and the outlet pipe must be freely accessible and straight, so that a rod can be pushed through to eliminate obstructions and agitate the digester contents. The pipes should penetrate the digester wall at a point below the lowest slurry level (i.e. not through the gas storage). The points of penetration should be sealed and reinforced with mortar. The inlet pipe ends higher in the digester than the outlet pipe in order to promote more uniform flow of the substrate. In a [[Types_of_Biogas_Digesters_and_Plants#Fixed_Dome_Biogas_Plants|fixed-dome plant]], the inlet pipe defines the bottom line of the gas-holder, acting like a security valve to release over-pressure. In a [[Types_of_Biogas_Digesters_and_Plants#Floating_Drum_Plants|floating-drum plant]], the end of the outlet pipe determines the digester's (constant) slurry level. Inlet and outlet pipe must be placed in connection with brick-laying. It is not advisable to break holes into the spherical shell afterwards, this would weaken the masonry structure.<br/>
 Inlet and outlet pipe must be placed in connection with brick-laying. It is not advisable to break holes into the spherical shell afterwards, this would weaken the masonry structure.
-<br/>
+<br/>'''<u>Toilet Connection at the Inlet</u>'''<br/>► [[Connection_of_a_Toilet_to_a_Biogas_Digester|Household Toilets can be connected to a Biogas Digester.]]<br/><br/><br/>
 <u>Toilet Connection at the Inlet</u><br/>
-► [[Connection of a Toilet to a Biogas Digester|Household Toilets can be connected to a Biogas Digester.]]<br/>
 = Digester =
 In general terms, digesters consist of the digestion tank as such, which is thermally insulated, plus a heating system, mixer systems and discharge systems for sediments and the spent substrate.<br/>

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 = BiogasBox =
 ► [https://dms.gtz.de/livelink-ger/livelink.exe?sort=name&func=ll&objid=72833125&objAction=browse&viewType=390 Documents on the contruction of biogas plants.]
 = Further Information =
@@ Line 148: / Line 149: @@
 *[[Digester Heating|Digester Heating]]
 *[[Piping Systems for Biogas Plants|Piping Systems for Biogas Plants]]
-*[[Plasters and coats for digesters and gas-holder|Plasters and coats for digesters and gas-holder]]
+*[[Plasters_and_Coats_for_Biogas_Digesters_and_Gas-holder|Plasters and Coats for Biogas Digesters and Gas-holder]]
 *[[Pumps for Biogas Plants|Pumps for Biogas Plants]]
 *[[Slurry-Use Equipment|Slurry-Use Equipment]]
 *[[Biogas Implementation - Groundwater Management|Biogas Implementation - Groundwater Management]]
-<br/>
+<br/><u>'''Web based sources'''</u>
 *[http://biogas.ifas.ufl.edu/ad_development/documents/biogasplants.pdf biogas.ifas - biogasplants (pdf])
-*[[Checklist_for_the_Construction_of_a_Biogas_Plant|Checklist for the Construction of a Biogas Plant]]
+*[[Checklist for the Construction of a Biogas Plant|Checklist for the Construction of a Biogas Plant]]
 *[http://www.haase-energietechnik.de/en/Products_and_Services/24-e_BiogasBrochure_Feb2011_1.pdf haase-energietechnik - BiogasBrochure (pdf)]
 = References<br/> =

← Older revision		Revision as of 10:17, 11 November 2014
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		+	[[Portal:Biogas\|►Back to Biogas Portal]]

	= Overview =		= Overview =

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 == Gas Analysis Equipment ==
-[[Gas Pipe, Valves and Accessories#Gas Analysis Equipment|►]][[Gas Pipe, Valves and Accessories#Gas Analysis Equipment|Read more here...]]
+[[Biogas Gas Pipe, Valves and Accessories#►Gas Analysis Equipment|Read more here...]]
 <br/>
 = Stirring Facilities<br/> =

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 [[Biogas_Gas_Pipe,_Valves_and_Accessories#Water_Traps|►Read more here....]]
 == Valves ==
-[[Gas Pipe, Valves and Accessories#Valves|►]][[Gas Pipe, Valves and Accessories#Valves|Read more here...]]
+[[Biogas_Gas_Pipe,_Valves_and_Accessories#Valves|►Read more here...]]
 == Gas Analysis Equipment ==

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 [[Biogas_Gas_Pipe,_Valves_and_Accessories#Gas_Pipe|Read More here...]]
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 == Water Traps ==
-[[Gas Pipe, Valves and Accessories#Water traps|►]][[Biogas_Gas_Pipe,_Valves_and_Accessories#Water_Traps|Read more here....]]
+[[Biogas_Gas_Pipe,_Valves_and_Accessories#Water_Traps|►Read more here....]]

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 = Gas Pipe, Valves and Accessories<br/> =
 == Biogas Piping<br/> ==
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 <br/>
-[[Gas Pipe, Valves and Accessories#Gas Pipe|Read More here...]]
+[[Biogas_Gas_Pipe,_Valves_and_Accessories#Gas_Pipe|Read More here...]]
 == Water Traps ==