Difference between revisions of "Biogas-Plant/C3/Assembly-of-the-Biogas-plant/English-timed"
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| 00:01 | | 00:01 | ||
− | | Hello everyone and | + | | Hello everyone and welcome to this '''Spoken Tutorial''' on '''Assembly of the Biogas plant'''. |
|- | |- | ||
| 00:10 | | 00:10 | ||
− | | In this tutorial, we will learn how to assemble the following | + | | In this tutorial, we will learn how to assemble the following- |
|- | |- | ||
| 00:16 | | 00:16 | ||
− | | | + | | '''digester tank''' with the dome, |
|- | |- | ||
| 00:18 | | 00:18 | ||
− | | | + | | mixing tank and |
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| 00:21 | | 00:21 | ||
− | | | + | | slurry tank. |
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| 00:30 | | 00:30 | ||
− | | Let us start | + | | Let us start. |
|- | |- | ||
| 00:32 | | 00:32 | ||
− | | Transfer the chicken mesh dome to the actual plant site. | + | | Transfer the '''chicken mesh''' dome to the actual '''plant''' site. |
|- | |- | ||
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| 00:53 | | 00:53 | ||
− | |To do this | + | |To do this- Hold the pipe with the external thread on the top. |
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| 01:00 | | 01:00 | ||
− | |Insert the pipe between the holes of the 3 chicken layer(s) and rotate slightly. | + | |Insert the pipe between the holes of the 3 '''chicken layer(s)''' and rotate slightly. |
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| 01:24 | | 01:24 | ||
− | |Remember: the external thread on the gas pipe | + | |Remember: the external thread on the gas pipe will help fit the hose pipe firmly. |
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| 01:38 | | 01:38 | ||
− | | An important thing to be done | + | | An important thing to be done next is the following- |
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| 01:51 | | 01:51 | ||
− | | Make a firm base | + | | Make a firm base. This base should be 4 feet and 5 inches higher than the dome for placing the mixing tank. |
|- | |- | ||
| 02:06 | | 02:06 | ||
− | | Next, on the side of the dome facing the base of the mixing tank cut chicken mesh | + | | Next, on the side of the dome facing the base of the mixing tank cut '''chicken mesh'''. |
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| 03:42 | | 03:42 | ||
− | | | + | | sand- 200 kgs, |
|- | |- | ||
| 03:45 | | 03:45 | ||
− | | | + | | cement- 100 kgs, |
|- | |- | ||
| 03:50 | | 03:50 | ||
− | | | + | | liquid waterproofing material- 150 ml, thoroughly mixed in 20 liters of water and adequate amount of water. |
|- | |- | ||
| 04:04 | | 04:04 | ||
− | | What you see here | + | | What you see here is the mason using the first coat of plaster on the dome. |
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| 04:13 | | 04:13 | ||
− | | Before entirely plastering the outer wall of the dome | + | | Before entirely plastering the outer wall of the dome, the base of the Digester tank has to be plastered for the second time. |
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| 04:33 | | 04:33 | ||
− | | | + | |sand -90 kgs, |
|- | |- | ||
| 04:37 | | 04:37 | ||
− | | | + | | cement -50 kgs, |
|- | |- | ||
| 04:42 | | 04:42 | ||
− | | | + | | liquid waterproofing material- 100 ml, mixed in 15 litres of water and |
|- | |- | ||
| 04:53 | | 04:53 | ||
− | | | + | |adequate amount of water as mentioned earlier. |
|- | |- | ||
| 05:00 | | 05:00 | ||
− | |What you see here | + | |What you see here is the mason adding liquid waterproofing material to the cement mixture. |
|- | |- | ||
| 05:11 | | 05:11 | ||
− | | Remember - | + | | Remember - the thickness of the layer of the plaster should be about 3 inches only. |
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| 05:22 | | 05:22 | ||
− | | Next comes the attaching of the walls of the slurry tank with the dome. | + | | Next comes the attaching of the walls of the '''slurry tank''' with the dome. |
|- | |- | ||
| 05:30 | | 05:30 | ||
− | |Hole of the | + | |Hole of the slurry tank has to be 6 inches lower than the dome. |
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| 05:58 | | 05:58 | ||
− | | With the hook, interlock the excess chicken mesh at the base of the dome and at the edge of the slurry tank wall | + | | With the hook, interlock the excess '''chicken mesh''' at the base of the dome and at the edge of the slurry tank wall. |
|- | |- | ||
| 06:12 | | 06:12 | ||
− | | Carefully | + | | Carefully tighten the chicken mesh securely so as to join the walls to the dome. |
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| 07:15 | | 07:15 | ||
− | |As mentioned earlier | + | |As mentioned earlier, mixing tank will be placed 4 feet and 5 inches higher than the dome to avoid water logging. |
|- | |- | ||
| 07:29 | | 07:29 | ||
− | | The mixing tank is connected to the digester tank via the | + | | The mixing tank is connected to the digester tank via the inlet pipe. |
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| 07:52 | | 07:52 | ||
− | |Remember - | + | |Remember - this inlet pipe of 6 inches diameter has been already inserted inside the dome at an angle of 45 degrees. |
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| 08:35 | | 08:35 | ||
− | | This is how it will look in a functional | + | | This is how it will look in a functional biogas plant. |
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| 09:03 | | 09:03 | ||
− | | | + | | sand- 180 kgs, |
|- | |- | ||
| 09:06 | | 09:06 | ||
− | | | + | | cement- 100 kgs, |
|- | |- | ||
| 09:11 | | 09:11 | ||
− | | | + | |liquid waterproofing material 250 ml, mixed in 20 Ltrs of water. |
|- | |- | ||
| 09:21 | | 09:21 | ||
− | |And adequate amount of water | + | |And, adequate amount of water. |
|- | |- | ||
| 09:26 | | 09:26 | ||
− | | Spread this mixture evenly on the outer wall of the dome | + | | Spread this mixture evenly on the outer wall of the dome |
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| 09:33 | | 09:33 | ||
− | | | + | | and on the inner wall of the dome as well. |
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| 09:54 | | 09:54 | ||
− | | This brings us to the end of Day 3 | + | | This brings us to the end of Day 3. |
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| 10:15 | | 10:15 | ||
− | | The dimensions would be 1 foot and 5 inches of length, 1 foot and 5 inches of width and 2 feet of height | + | | The dimensions would be 1 foot and 5 inches of length, 1 foot and 5 inches of width and 2 feet of height. |
|- | |- | ||
| 10:32 | | 10:32 | ||
− | | Dig another pit at the front of the lower tank as shown here | + | | Dig another pit at the front of the lower tank as shown here. |
|- | |- | ||
| 10:41 | | 10:41 | ||
− | |The dimensions would be | + | |The dimensions would be- 10 inches of length, 28 inches of width and 2 feet of height. |
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| 11:45 | | 11:45 | ||
− | | The wall with the hole should face the fields | + | | The wall with the hole should face the fields. This will help the slurry to flow out smoothly through the hole. |
|- | |- | ||
| 11:59 | | 11:59 | ||
− | | Coming back to the dome, | + | | Coming back to the dome, place approximately 25 jute gunny bags on the dome. |
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| 12:43 | | 12:43 | ||
− | | Lastly, the entire dome should be covered with the plastic sheet held between 2- 4 pillars. | + | | Lastly, the entire dome should be covered with the plastic sheet held between 2 - 4 pillars. |
|- | |- | ||
| 12:56 | | 12:56 | ||
− | | This plastic sheet will protect the dome from too much sunlight thereby avoiding too much drying of the dome | + | | This plastic sheet will protect the dome from too much sunlight, thereby avoiding too much drying of the dome. |
|- | |- | ||
| 13:11 | | 13:11 | ||
− | | This brings us to the end of Day 4 | + | | This brings us to the end of Day 4. |
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| 13:29 | | 13:29 | ||
− | |250 gms of Synthetic Resin Adhesive and 2kgs of white cement. | + | |250 gms of '''Synthetic Resin Adhesive''' and 2kgs of white cement. |
|- | |- | ||
| 13:41 | | 13:41 | ||
− | |Apply this mixture on the inside of the digester tank | + | |Apply this mixture on the inside of the digester tank to seal crack(s), if any. |
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| 14:46 | | 14:46 | ||
− | | From the main gas control valve, we have to connect a gas | + | | From the main gas control valve, we have to connect a gas conveyor pipe. |
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| 15:11 | | 15:11 | ||
− | | The gas | + | | The gas conveyor pipe extends all the way to the kitchen. |
|- | |- | ||
| 15:20 | | 15:20 | ||
− | | Inside the kitchen, connect the safety valve to the gas | + | | Inside the kitchen, connect the safety valve to the gas conveyor pipe using a straight joint. |
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| 16:38 | | 16:38 | ||
− | | Now how to check whether | + | | Now, how to check whether biogas has been produced? Do the following. |
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| 17:10 | | 17:10 | ||
− | | Another issue is water condensation | + | | Another issue is water condensation. So, how can water condensation can be avoided? |
|- | |- | ||
| 17:23 | | 17:23 | ||
− | | The gas | + | | The gas conveyor pipe from the dome, towards the kitchen, should be always in an upward direction. |
|- | |- | ||
| 17:35 | | 17:35 | ||
− | |If so, water accumulation inside the | + | |If so, water accumulation inside the conveyor pipe is negligible. |
|- | |- | ||
| 17:44 | | 17:44 | ||
− | | This brings us to the end of this tutorial | + | | This brings us to the end of this tutorial. |
|- | |- | ||
| 17:50 | | 17:50 | ||
− | | Let us Summarize | + | | Let us Summarize. |
|- | |- | ||
| 17:54 | | 17:54 | ||
− | | In this tutorial, we | + | | In this tutorial, we learnt how to assemble the following. |
|- | |- | ||
| 18:02 | | 18:02 | ||
− | | Digester tank with the dome | + | |* Digester tank with the dome |
|- | |- | ||
| 18:06 | | 18:06 | ||
− | | Mixing tank and | + | |* Mixing tank and |
|- | |- | ||
| 18:09 | | 18:09 | ||
− | | Slurry tank | + | |* Slurry tank. |
|- | |- | ||
| 18:13 | | 18:13 | ||
− | | This video was created by Spoken Tutorial Project with inputs from Rural-ICT Project, IIT Bombay | + | | This video was created by '''Spoken Tutorial''' Project with inputs from '''Rural-ICT Project, IIT Bombay'''. |
− | + | ||
|- | |- | ||
| 18:25 | | 18:25 | ||
− | |More information on these projects can be found at this | + | |More information on these projects can be found at this link. |
|- | |- | ||
| 18:33 | | 18:33 | ||
− | | This is Bella Tony along with the | + | | This is Bella Tony along with the animation team from '''Spoken Tutorial Project, IIT Bombay,''' signing off. |
Thank you for joining. | Thank you for joining. | ||
|} | |} |
Revision as of 16:49, 29 November 2016
Time | Narration |
00:01 | Hello everyone and welcome to this Spoken Tutorial on Assembly of the Biogas plant. |
00:10 | In this tutorial, we will learn how to assemble the following- |
00:16 | digester tank with the dome, |
00:18 | mixing tank and |
00:21 | slurry tank. |
00:23 | Please note that this is an activity of Day 3. |
00:30 | Let us start. |
00:32 | Transfer the chicken mesh dome to the actual plant site. |
00:38 | Place the dome on the raised wall of the digester tank. |
00:43 | Once this is done, fix the main gas pipe of 1 inch diameter, on the top of the dome. |
00:53 | To do this- Hold the pipe with the external thread on the top. |
01:00 | Insert the pipe between the holes of the 3 chicken layer(s) and rotate slightly. |
01:10 | Check if it is firmly placed. |
01:13 | The pipe will be fixed permanently in this position when the outer wall of the dome will be plastered. |
01:24 | Remember: the external thread on the gas pipe will help fit the hose pipe firmly. |
01:33 | Notice the external thread at the top of the gas pipe. |
01:38 | An important thing to be done next is the following- |
01:44 | On the side of the dome adjacent to where the mixing tank will be placed- |
01:51 | Make a firm base. This base should be 4 feet and 5 inches higher than the dome for placing the mixing tank. |
02:06 | Next, on the side of the dome facing the base of the mixing tank cut chicken mesh. |
02:16 | Use a scissor to cut the mesh and make a hole of 6 inches diameter. |
02:27 | Through this hole, one end of the inlet pipe will be inserted at an angle of 45 degrees. |
02:38 | Rest the other end of the inlet pipe at the base of the mixing tank and plaster it with cement mixture. |
02:52 | Bio-waste will reach the digester tank through this inlet pipe. |
03:00 | This is how the inlet pipe will look like from inside the dome. |
03:09 | Once the gas pipe is fitted, we need to plaster the dome from outside. |
03:18 | An interesting fact is that the dome is plastered twice and both coats of plaster have different ratio of sand and cement. |
03:35 | For first coat of plastering, use the following- |
03:42 | sand- 200 kgs, |
03:45 | cement- 100 kgs, |
03:50 | liquid waterproofing material- 150 ml, thoroughly mixed in 20 liters of water and adequate amount of water. |
04:04 | What you see here is the mason using the first coat of plaster on the dome. |
04:13 | Before entirely plastering the outer wall of the dome, the base of the Digester tank has to be plastered for the second time. |
04:27 | Ratio of cement mixture to be used is- |
04:33 | sand -90 kgs, |
04:37 | cement -50 kgs, |
04:42 | liquid waterproofing material- 100 ml, mixed in 15 litres of water and |
04:53 | adequate amount of water as mentioned earlier. |
05:00 | What you see here is the mason adding liquid waterproofing material to the cement mixture. |
05:11 | Remember - the thickness of the layer of the plaster should be about 3 inches only. |
05:22 | Next comes the attaching of the walls of the slurry tank with the dome. |
05:30 | Hole of the slurry tank has to be 6 inches lower than the dome. |
05:38 | This will ensure free flow of slurry into the slurry tank. |
05:47 | Place the slanting wall(s) of the slurry tank at either sides of the entrance to the dome. |
05:58 | With the hook, interlock the excess chicken mesh at the base of the dome and at the edge of the slurry tank wall. |
06:12 | Carefully tighten the chicken mesh securely so as to join the walls to the dome. |
06:23 | To seal the joints, use cement mixture with adequate amount of water. |
06:34 | Apply this mixture carefully so that there are no gaps at all. |
06:44 | Please note that at this point, we have used 3 of the 7 walls for the slurry tank. |
06:57 | The plastered dome should now be left for 6-8 hours for curing. |
07:06 | Leaving the dome for curing, we will now attach the mixing tank. |
07:15 | As mentioned earlier, mixing tank will be placed 4 feet and 5 inches higher than the dome to avoid water logging. |
07:29 | The mixing tank is connected to the digester tank via the inlet pipe. |
07:37 | Before placing, check the hole at the base of the mixing tank. |
07:44 | The hole should be placed just in front of the inlet pipe of 6 inch diameter. |
07:52 | Remember - this inlet pipe of 6 inches diameter has been already inserted inside the dome at an angle of 45 degrees. |
08:08 | For the hole of the mixing tank and the inlet pipe to be in line with each other, do the following- |
08:20 | Place three bricks around these two and plaster it with cement. |
08:29 | After plastering, leave it for curing overnight. |
08:35 | This is how it will look in a functional biogas plant. |
08:43 | Now, plaster the entire outer dome wall for the second time and the inner wall of the dome. |
08:57 | Prepare the cement mixture as follows- |
09:03 | sand- 180 kgs, |
09:06 | cement- 100 kgs, |
09:11 | liquid waterproofing material 250 ml, mixed in 20 Ltrs of water. |
09:21 | And, adequate amount of water. |
09:26 | Spread this mixture evenly on the outer wall of the dome |
09:33 | and on the inner wall of the dome as well. |
09:39 | Smoothen out the plaster by using the wooden trowel. |
09:46 | Leave the whole structure for curing for 17 days. |
09:54 | This brings us to the end of Day 3. |
10:00 | On day 4, we will do the following- |
10:06 | Dig two rectangular pits adjacent to the side walls of the lower tank. |
10:15 | The dimensions would be 1 foot and 5 inches of length, 1 foot and 5 inches of width and 2 feet of height. |
10:32 | Dig another pit at the front of the lower tank as shown here. |
10:41 | The dimensions would be- 10 inches of length, 28 inches of width and 2 feet of height. |
10:58 | Lay foundation on both the adjacent sides and the front side of the lower tank using gravel, cement and sand mixture. |
11:18 | The gravel, sand and cement is mixed in the same proportion as mentioned previously. |
11:30 | Now, join the four walls of the upper slurry tank. |
11:37 | Plaster the edges of the walls with cement. |
11:45 | The wall with the hole should face the fields. This will help the slurry to flow out smoothly through the hole. |
11:59 | Coming back to the dome, place approximately 25 jute gunny bags on the dome. |
12:11 | Twice a day, start spraying water on the dome. |
12:18 | Spray as much is required to wet the outer wall of the dome. |
12:26 | Jute bags placed on the outer wall help to retain the water. |
12:35 | This will keep the dome wet for longer hours. |
12:43 | Lastly, the entire dome should be covered with the plastic sheet held between 2 - 4 pillars. |
12:56 | This plastic sheet will protect the dome from too much sunlight, thereby avoiding too much drying of the dome. |
13:11 | This brings us to the end of Day 4. |
13:17 | On the 15th day of curing- |
13:22 | Make a mixture of 2 Litres of water, |
13:29 | 250 gms of Synthetic Resin Adhesive and 2kgs of white cement. |
13:41 | Apply this mixture on the inside of the digester tank to seal crack(s), if any. |
13:52 | At this point, the civil work of the biogas plant is completed. |
14:00 | We will now learn to connect the main gas pipe to the kitchen. |
14:07 | Connect the main gas pipe from the digester tank to the main gas control valve, as shown here. |
14:22 | The joint between the main gas pipe and gas control valve should be perfectly air-tight. |
14:35 | Otherwise, gas leakage from this joint cannot be stopped easily. |
14:46 | From the main gas control valve, we have to connect a gas conveyor pipe. |
14:57 | Once again, connect these using a straight joint and ensure it is air-tight. |
15:11 | The gas conveyor pipe extends all the way to the kitchen. |
15:20 | Inside the kitchen, connect the safety valve to the gas conveyor pipe using a straight joint. |
15:33 | Connect another straight joint on the other end of the safety valve. |
15:43 | Make sure that all the joints are air-tight. |
15:50 | Lastly, connect the rubber hose to the stove. |
15:58 | After all the connections are made, the biogas plant is ready for use. |
16:09 | After 17 days of total curing time, raw materials can be put into the biogas plant. |
16:23 | Initial production of biogas will take about 6 days. |
16:31 | After that, it will be a regular daily production. |
16:38 | Now, how to check whether biogas has been produced? Do the following. |
16:48 | Ensure that both the safety valves are in open position for the gas to be conveyed. |
17:00 | Light the burner and check the flame for production of the biogas. |
17:10 | Another issue is water condensation. So, how can water condensation can be avoided? |
17:23 | The gas conveyor pipe from the dome, towards the kitchen, should be always in an upward direction. |
17:35 | If so, water accumulation inside the conveyor pipe is negligible. |
17:44 | This brings us to the end of this tutorial. |
17:50 | Let us Summarize. |
17:54 | In this tutorial, we learnt how to assemble the following. |
18:02 | * Digester tank with the dome |
18:06 | * Mixing tank and |
18:09 | * Slurry tank. |
18:13 | This video was created by Spoken Tutorial Project with inputs from Rural-ICT Project, IIT Bombay. |
18:25 | More information on these projects can be found at this link. |
18:33 | This is Bella Tony along with the animation team from Spoken Tutorial Project, IIT Bombay, signing off.
Thank you for joining. |