Difference between revisions of "Biogas-Plant/C4/Maintenance-and-Repair/English"

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Learning Objective
 
Learning Objective
  
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We will learn different techniques to repair and maintain
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We will learn:
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Different techniques to repair and maintain
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* the '''Biogas''' burner and  
 
* the '''Biogas''' burner and  
 
* the '''Biogas plant'''
 
* the '''Biogas plant'''
  
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+
| style="border:0.75pt solid #000000;padding:0.176cm;"| In this '''tutorial, '''we will learn different techniques to maintain and repair-
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| style="border:0.75pt solid #000000;padding:0.176cm;"| In this '''tutorial '''we will learn:
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+
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Different techniques to maintain and repair-
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* the '''Biogas plant''' and  
 
* the '''Biogas plant''' and  
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|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| Slide 5
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| Slide 5
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How often should one carry out maintenance of the '''Biogas plant'''?
 
How often should one carry out maintenance of the '''Biogas plant'''?
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| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"| Maintenance should be carried out on a daily basis by doing the following-
 
| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"| Maintenance should be carried out on a daily basis by doing the following-
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* Always, mix the bio-waste with water in the proper ratio.
 
* Always, mix the bio-waste with water in the proper ratio.
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* This will ensure-
 
* This will ensure-
−
 
+
** smooth flow of the bio-waste  
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* smooth flow of the bio-waste from the mixing tank into the digester tank.
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**from the mixing tank into the digester tank.
  
 
|-
 
|-
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 7
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 7
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| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"| * If adding plant waste, crush and chop the leaves up to 1-4 cms.
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| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"|  
 +
* If adding plant waste, crush and chop the leaves up to 1-4 cms.
  
 
* Do not feed too much straw into the digester tank as it is difficult to be digested.
 
* Do not feed too much straw into the digester tank as it is difficult to be digested.
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|-
 
|-
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 8
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 8
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| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"| * Soap, oil, chemical, insecticide and pesticides should not be added.
+
| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"|  
 +
* Soap, oil, chemical, insecticide and pesticides should not be added.
  
 
* Soil, sand or stone should also not be added.
 
* Soil, sand or stone should also not be added.
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|-
 
|-
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 9
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 9
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| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"| * Quantity of bio-waste to be supplied depends upon the size of the plant.
+
| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"|  
 +
* Quantity of bio-waste to be supplied depends upon the size of the plant.
  
 
* Too much bio-waste should not be fed into the digester.
 
* Too much bio-waste should not be fed into the digester.
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* This will lead to shorter retention time-
 
* This will lead to shorter retention time-
  
−
* i.e. bio-waste will be in the digester tank for lesser time.
+
** i.e. bio-waste will be in the digester tank for lesser time.
−
* And fermentation won’t be completed.  
+
** and fermentation won’t be completed.  
  
 
* Hence, bio-waste will come out in the slurry tank without being digested.
 
* Hence, bio-waste will come out in the slurry tank without being digested.
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|-
 
|-
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 10
 
| style="border-top:0.75pt solid #000000;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #666666;padding:0.176cm;"| Slide 10
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| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"| * If less bio-waste is fed into the digester, then gas production will be low.
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| style="border:0.75pt solid #666666;padding-top:0cm;padding-bottom:0cm;padding-left:0.212cm;padding-right:0.212cm;"|  
 +
* If less bio-waste is fed into the digester, then gas production will be low.
  
 
* Water condensation should be checked regularly.
 
* Water condensation should be checked regularly.
 
* As water in the pipeline will block the passage of gas.
 
* As water in the pipeline will block the passage of gas.
−
 
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| Slide 11
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| Slide 11
−
| style="border-top:0.75pt solid #666666;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #000000;padding:0.176cm;"| * Do so by lifting the gas pipe so that the water can run back into the digester tank.
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| style="border-top:0.75pt solid #666666;border-bottom:0.75pt solid #000000;border-left:0.75pt solid #000000;border-right:0.75pt solid #000000;padding:0.176cm;"|  
 +
* Do so, by lifting the gas pipe so that the water can run back into the digester tank.
  
 
* Also keep a check that the slurry is being pumped out smoothly into the slurry tank.
 
* Also keep a check that the slurry is being pumped out smoothly into the slurry tank.
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|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.176cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.176cm;"|  
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| style="border:0.75pt solid #000000;padding:0.176cm;"| * No inflammable items like-
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| style="border:0.75pt solid #000000;padding:0.176cm;"|  
 +
No inflammable items like-
  
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lighter and/or cigarettes should be brought near the outlet pipe of the dome.
+
*lighter and/or cigarettes should be brought near the outlet pipe of the dome.
  
 
|-
 
|-
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* Slurry in the digester tank should be completely removed once in three years.
 
* Slurry in the digester tank should be completely removed once in three years.
 +
  
 
This is usually done by the mason himself.
 
This is usually done by the mason himself.
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This is done to ensure proper hygiene and to avoid breeding of mosquitoes near the plant.  
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*This is done to ensure proper hygiene  
 +
*and to avoid breeding of mosquitoes near the plant.  
  
 
|-
 
|-
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Doing so is very important.  
 
Doing so is very important.  
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−
 
−
 
  
 
|-
 
|-
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[[Image:]]
 
[[Image:]]
−
 
−
 
  
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| Now we start dismantling the burner.
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| Now we start dismantling the burner.
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−
 
−
 
  
 
|-
 
|-
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|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| [[Image:]]
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| [[Image:]]
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| style="border:0.75pt solid #000000;padding:0.176cm;"| In case of hard debris which cannot be removed by blowing air, a dry scrubbing pad can be used.
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| style="border:0.75pt solid #000000;padding:0.176cm;"|  
 +
*In case of hard debris which cannot be removed by blowing air,  
 +
*a dry scrubbing pad can be used.
  
 
|-
 
|-
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A ring with clean holes will ensure-
 
A ring with clean holes will ensure-
−
 
−
 
 
* smooth flow of gas and  
 
* smooth flow of gas and  
 
* fuller flame
 
* fuller flame
−
 
−
 
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| [[Image:]]
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| [[Image:]]
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| A clean ring will look like this.
 
| style="border:0.75pt solid #000000;padding:0.176cm;"| A clean ring will look like this.
−
 
−
 
−
 
  
 
|-
 
|-
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* by using White '''cement''' and synthetic resin adhesive mixture to seal cracks, if present.
 
* by using White '''cement''' and synthetic resin adhesive mixture to seal cracks, if present.
−
 
−
 
  
 
|-
 
|-
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* 2 kgs of white '''cement'''
 
* 2 kgs of white '''cement'''
  
−
Mix these thoroughly. And use.
+
Mix these thoroughly and use.
  
 
|-
 
|-

Latest revision as of 18:09, 30 May 2016

Visual Cue Narration
Slide 1


Maintenance and Repair of the Biogas plant.

Hello and Welcome to the Spoken Tutorial on Maintenance and Repair of the Biogas plant.
Slide 2

Learning Objective

We will learn different techniques to repair and maintain

  • the Biogas burner and
  • the Biogas plant
In this tutorial, we will learn different techniques to maintain and repair-
  • the Biogas plant and
  • the Biogas burner
Slide 3 Periodic partial and complete cleaning of the Biogas plant is a must.


This will ensure that the Biogas plant runs smoothly.


It will also ensure efficient working of the Biogas plant for many years.

Slide 4

Maintenance section

Let us first look into the maintenance section.
Slide 5

How often should one carry out maintenance of the Biogas plant?

So, how often should one carry out maintenance of the Biogas plant?
Slide 6
  • Always, mix the bio-waste with water in the proper ratio.
  • This will ensure-
    smooth flow of the bio-waste from the mixing tank into the digester tank.
Maintenance should be carried out on a daily basis by doing the following-
  • Always, mix the bio-waste with water in the proper ratio.
  • This will ensure-
    • smooth flow of the bio-waste
    • from the mixing tank into the digester tank.
Slide 7
  • If adding plant waste, crush and chop the leaves up to 1-4 cms.
  • Do not feed too much straw into the digester tank as it is difficult to be digested.
  • Sticks and branches of trees should also be avoided.
Slide 8
  • Soap, oil, chemical, insecticide and pesticides should not be added.
  • Soil, sand or stone should also not be added.
  • As they will accumulate at the base of the digester and hinder gas production.
Slide 9
  • Quantity of bio-waste to be supplied depends upon the size of the plant.
  • Too much bio-waste should not be fed into the digester.
  • This will lead to shorter retention time-
    • i.e. bio-waste will be in the digester tank for lesser time.
    • and fermentation won’t be completed.
  • Hence, bio-waste will come out in the slurry tank without being digested.
Slide 10
  • If less bio-waste is fed into the digester, then gas production will be low.
  • Water condensation should be checked regularly.
  • As water in the pipeline will block the passage of gas.
Slide 11
  • Do so, by lifting the gas pipe so that the water can run back into the digester tank.
  • Also keep a check that the slurry is being pumped out smoothly into the slurry tank.
  • Ensure that the slurry is being emptied out of the slurry tank when it is full.

No inflammable items like-

  • lighter and/or cigarettes should be brought near the outlet pipe of the dome.
Slide 12 Another important thing to be done is that-
  • Slurry in the digester tank should be completely removed once in three years.


This is usually done by the mason himself.

[[Image:]] As shown, keep the mixing tank and the slurry tank covered.


  • This is done to ensure proper hygiene
  • and to avoid breeding of mosquitoes near the plant.
Slide 13

Repair section

Image of a technician

Let us now look into the Repair section.


Repair of Biogas burner should always be done by a qualified technician.

[[Image:]]


What you see here is a Biogas burner with the flame.
[[Image:]]

[[Image:]]

[[Image:]][[Image:]]

To start repairing, first switch off the inflow of gas by turning off the knobs on-
  • the hose pipe and
  • at the burner

Doing so is very important.

[[Image:]] What you see here is the burner without the flame after the knobs have been turned off.


Wait for few minutes and light the burner to ensure that gas inflow has stopped.

[[Image:]]


[[Image:]]

Now remove the hose pipe connected to the burner.


Do so by loosening the Vohj clip tightened on the hose pipe connected to the burner.


Once it is loosened, pull out the hose pipe.

[[Image:]] Now place the hose pipe near your ear to check for the sound of gas.


No sound means no gas inflow and the repair work can be carried out safely.

[[Image:]]

[[Image:]]

Now we start dismantling the burner.
[[Image:]] Next we will remove the debris in the burner.


As shown in the image, blow air through the hose-burner connector.


This will also help to check if air is reaching smoothly to the flame ring.

[[Image:]] Slightly tap the burner and then turn it upside down.


You can see the debris fallen from the burner.

[[Image:]]
  • In case of hard debris which cannot be removed by blowing air,
  • a dry scrubbing pad can be used.
[[Image:]] To clean the flame ring, use a pin and insert it into the holes for cleaning.


A ring with clean holes will ensure-

  • smooth flow of gas and
  • fuller flame
[[Image:]] A clean ring will look like this.
Slide 14


Apart from what is mentioned, periodic inspection of the plant is necessary.


Inspection will help to locate cracks on the surface of the digester tank.


Otherwise, the generated Biogas can escape into the atmosphere through these cracks.


Hence, these cracks need to be sealed quickly.

Slide 15 Once in 3 years,
  • the mason also repaints the inner wall of the digester tank
  • by using White cement and synthetic resin adhesive mixture to seal cracks, if present.
Slide 16 To make this mixture use the following-
  • 2 Ltrs of water,
  • 250 gms of Synthetic Resin Adhesive and
  • 2 kgs of white cement

Mix these thoroughly and use.

Slide 17

Summary

Let us summarize:


In this tutorial we learnt about the maintenance and repair of the Biogas plant.

Slide 3

Acknowledgements

This video was created by:

Spoken Tutorial Project with inputs from Rural-ICT team, IIT Bombay.

This video was created by-

Spoken Tutorial Project with inputs from Rural-ICT team, IIT Bombay.

More information on these projects can be found at these links

http://spoken-tutorial.org/NMEICT-Intro

http://ruralict.cse.iitb.ac.in/ in

More information on these projects can be found at these links.

http://spoken-tutorial.org/NMEICT-Intro

http://ruralict.cse.iitb.ac.in/ in

Pictures and technology support:

Courtesy:

Bhagirath Rural Development Foundation

Village- Zarap, Taluka- Kudal,

Dist.- Sindhudurg

Pictures and technology support:

Courtesy:

Bhagirath Rural Development Foundation

Village- Zarap, Taluka- Kudal,

Dist.- Sindhudurg

This is Bella Tony along with the animation team of the Spoken Tutorial project signing off.

Thank you for joining.

Contributors and Content Editors

Bellatony911, Nancyvarkey

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