Difference between revisions of "Biogas-Plant/C3/Building-the-walls-of-the-Slurry-tank/English"

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{| style="border-spacing:0;"
 
{| style="border-spacing:0;"
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>Visual Cue</center>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>'''Visual Cue'''</center>
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>Narration</center>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>'''Narration'''
  
 
|-
 
|-
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| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 1'''
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 1
  
−
'''Building the walls of the slurry tank'''
+
Building the walls of the slurry tank
  
−
<nowiki>[[Image:]] </nowiki>
+
[[Image:]]
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Hello everyone  
+
 
 +
| style="border:0.75pt solid #000000;padding:0.071cm;"| Hello everyone.
  
−
Welcome to this Spoken Tutorial on building the walls of the slurry tank.
+
Welcome to this '''Spoken Tutorial''' on building the walls of the slurry tank.
  
 
This is an activity to be done on Day 2.
 
This is an activity to be done on Day 2.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 2'''
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 2
 +
 
 +
Learning Objectives
  
−
'''Learning Objectives'''
 
  
 
We will learn:  
 
We will learn:  
Line 25: Line 27:
 
* How to build the walls of the slurry tank
 
* How to build the walls of the slurry tank
  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| In this tutorial, we will learn-
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| In this''' tutorial''', we will learn-
  
 
* how to build the walls of the slurry tank.
 
* how to build the walls of the slurry tank.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 3'''
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 3
  
−
'''Building the walls of the slurry tank'''
+
Building the walls of the slurry tank
  
 
What is a slurry tank?
 
What is a slurry tank?
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Let’s first understand what is a slurry tank.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
Let’s first understand what is a slurry tank.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <nowiki>[[Image:]] </nowiki>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slurry, is the most important by-product of the fermentation that takes place inside the digester tank.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
Slurry-
  
−
This slurry comes out of the digester tank and is collected in the slurry tank.
+
 
 +
1. Is the most important by-product of the fermentation-
 +
* that takes place inside the digester tank.
 +
 
 +
2. This slurry comes out of the digester tank and is collected in the slurry tank.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 4'''
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 4
  
−
'''Building the walls of the slurry tank'''
+
Building the walls of the slurry tank
  
 
Position of the slurry tank?  
 
Position of the slurry tank?  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Lets look at the position of the slurry tank with respect to the Biogas plant.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Let’s look at the position of the slurry tank with respect to the '''Biogas plant.'''
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| The slurry tank is placed-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| The slurry tank is placed-
  
Line 58: Line 66:
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 5'''
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 5
  
−
'''Building the walls of the slurry tank'''
+
Building the walls of the slurry tank
−
 
+
−
<nowiki>[[Image:]] </nowiki>
+
  
 
Shape of the tank?
 
Shape of the tank?
Line 68: Line 74:
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <nowiki>[[Image:]] </nowiki>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| These tanks are rectangular in shape.
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| These tanks are rectangular in shape.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <nowiki>[[Image:]] </nowiki>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
 +
 
 +
Arrows at the upper tank and the smaller tank.
 +
 
 +
| style="border:0.75pt solid #000000;padding:0.071cm;"|
 +
What you see here is the pictorial representation of the slurry tank.
  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| What you see here is the pictorial representation of the slurry tank.
 
  
 
The slurry tank is divided into-
 
The slurry tank is divided into-
  
−
* Small tank and the upper tank.
+
# Small tank and the upper tank.
−
* The small tank is enclosed within the upper tank.
+
# The small tank is enclosed within the upper tank.
  
 
|-
 
|-
 +
| style="border:0.75pt solid #000000;padding:0.071cm;"| # Entrance view of this image
 +
# Arrow at the hole
 +
# Show dimensions
 +
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Notice the pink colored walls of the smaller tank enclosed inside the blue colored upper tank.
+
Notice-
 +
 
 +
 
 +
1. The pink colored walls of the smaller tank-
 +
*enclosed inside the blue colored upper tank.
  
−
Also note, the upper tank has an outlet hole.
+
2. Also note, the upper tank has an outlet hole.
  
−
The lower tank is in line with the entrance to the digester tank.
+
3. The lower tank is in line with the entrance to the digester tank.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 6'''
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 6
  
−
'''Building the walls of the slurry tank'''
+
Building the walls of the slurry tank
  
 
How many walls have to be built for constructing the slurry tank ?
 
How many walls have to be built for constructing the slurry tank ?
Line 98: Line 116:
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Total 7 walls have to be fabricated to build the slurry tank.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Total 7 walls have to be constructed to build the slurry tank.
  
 
The various dimensions are shown in the image.
 
The various dimensions are shown in the image.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center><nowiki>[[Image:]] </nowiki></center>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
  
−
<center><nowiki>[[Image:]] </nowiki></center>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|
 +
Items used for construction are
  
−
<center><nowiki>[[Image:]] </nowiki></center>
+
* '''Steel''' rods and
 +
* Chicken mesh
  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>Items used for construction are-</center>
 
  
−
* steel rods and
+
Detailed specifications of these are mentioned in the''' tutorial '''on Materials required.
−
* Chicken mesh
+
−
 
+
−
<center>Detailed specifications of these are mentioned in the tutorial on materials required.</center>
+
  
 
|-
 
|-
 +
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| What you see here is the dimensions of one of the seven walls.
+
To begin with,
  
−
And one of the 3 steel rods inserted through the holes of the chicken mesh.
 
  
−
|-
+
Insert one of the 3 '''steel''' rods through the holes of the chicken mesh.
−
| style="border:0.75pt solid #000000;padding:0.071cm;"|
+
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| In the same way, build 6 more walls to make total 7 walls as shown here.
+
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center><nowiki>[[Image:]] </nowiki></center>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Insert these steel rods through sufficient number of holes.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Insert these '''steel''' rods through sufficient number of holes.
  
−
This will ensure that the rod will not slide while placing it on the cement plaster.
+
 
 +
This will ensure that the rod will not slide while placing it on the '''cement''' plaster.
  
 
|-
 
|-
 +
| style="border:0.75pt solid #000000;padding:0.071cm;"| Image
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Next, lay a plastic sheet on the ground.
+
Next, lay a '''plastic''' sheet on the ground.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center><nowiki>[[Image:]] </nowiki></center>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
−
 
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
<center><nowiki>[[Image:]] </nowiki></center>
+
Use a measuring tape to mark boundary for-  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Use a measuring tape to mark boundary for-  
+
  
 
# height
 
# height
Line 148: Line 163:
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center><nowiki>[[Image:]] </nowiki></center>
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>Image</center>
−
 
+
−
<center><nowiki>[[Image:]] </nowiki></center>
+
  
 
<center>[[Image:]]</center>
 
<center>[[Image:]]</center>
Line 156: Line 169:
 
<center>[[Image:]]</center>
 
<center>[[Image:]]</center>
  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| We will spread the cement mixture within this boundary, on the plastic sheet.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
We will spread the '''cement''' mixture within this boundary, on the '''plastic''' sheet.
  
−
Prepare cement mixture as follows-
+
Prepare '''cement''' mixture as follows-
  
 
* Sand- 150 kgs
 
* Sand- 150 kgs
−
* Cement-50 kgs
+
* '''Cement'''-50 kgs
−
* Liquid waterproofing material -150 ml thoroughly stirred in 20 ltrs of water.
+
* Liquid waterproofing material -150 ml thoroughly stirred in 20 litres of water.
−
* Adequate water to mix the cement mixture well
+
* And adequate water to mix the '''cement '''mixture well
  
 
Note- that no gravel is used in this mixture.
 
Note- that no gravel is used in this mixture.
Line 169: Line 183:
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| To begin with, first, spread 1.5 inch thickness of the cement mixture.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
To begin with,  
 +
 
 +
 
 +
First, spread 1.5 inches thickness of the''' cement''' mixture.
 +
 
  
 
Spread it between the boundary of the wall.
 
Spread it between the boundary of the wall.
Line 175: Line 194:
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Now carefully place the chicken mesh with inserted steel rods on this cement mixture.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
Now carefully-
  
−
This chicken mesh with inserted steel rods serves as a support for the cement mixture.
+
 
 +
1. Place the chicken mesh with inserted '''steel '''rods on this '''cement '''mixture.
 +
 
 +
2. This chicken mesh with inserted '''steel '''rods serve as-
 +
* a support for the '''cement''' mixture.
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Care should be taken to-  
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
Care should be taken to-  
  
−
* Leave an extra 4-5 inches of chicken mesh at either sides of each wall
 
  
−
* This will be entwined or interlocked with the chicken mesh left at the edge of the dome.
+
1. Leave an extra 4-5 inches of chicken mesh at either sides of each wall.
  
−
* Doing this will help fixing the walls of the slurry tank with the dome.
+
2. This will be entwined or interlocked-
 +
* with the chicken mesh left at the edges of the dome.
 +
 
 +
3. Doing this will help fixing the walls of the slurry tank with the dome.
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| In the earlier two images, we saw a hole in only one of the walls of the slurry tank.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
In the earlier two images, we saw-
 +
 
 +
* a hole in only one of the walls of the slurry tank.
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| [[Image:]]
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| [[Image:]]
  
−
'''Slide 7'''
+
Slide 7
  
−
'''Building the walls of the slurry tank'''
+
Building the walls of the slurry tank
  
 
Significance of a hole in one of the walls of the slurry tank.
 
Significance of a hole in one of the walls of the slurry tank.
Line 207: Line 237:
  
 
[[Image:]]
 
[[Image:]]
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| It is this hole from where the slurry smoothly comes and flows out to the agricultural field.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| It is this hole from where-
 +
 
 +
# the slurry smoothly comes and  
 +
# flows out to the agricultural field.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 8'''
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 8
  
−
'''Building the walls of the slurry tank'''
+
Building the walls of the slurry tank
  
 
How to make a hole in the wall of the slurry tank?
 
How to make a hole in the wall of the slurry tank?
Line 220: Line 253:
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| To make a hole, use the inlet pipe of 6 inches diameter.
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| To make a hole, use the inlet pipe of 6 inches diameter.
 +
  
 
Attention should be paid to this particular wall before fitting the pipe on it.
 
Attention should be paid to this particular wall before fitting the pipe on it.
Line 235: Line 269:
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| To begin with:
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| To begin with:
  
−
Use a scissor and cut the Chicken mesh to make a hole of 6 inches diameter.
 
  
−
Then insert the Steel rods as explained earlier on either side of the 6 inch diameter hole.
+
1. Use a scissor and cut the Chicken mesh to make a hole of 6 inches diameter.
  
−
Now lay this mesh with a hole on the cement mixture spread on the plastic sheet.
+
2. Then insert the '''Steel '''rods as explained earlier-
 +
* on either side of the 6 inch diameter hole.
  
−
The thickness of this cement mixture should be 1.5 inches
+
3. Now lay this mesh with a hole-
 +
* on the '''cement''' mixture spread on the '''plastic '''sheet.
 +
 
 +
4. The thickness of this '''cement '''mixture should be 1.5 inches.
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Exactly on this hole, place the inlet pipe of 6 inches diameter firmly in an upright position.
 
  
 +
<center>Point where the pipe has to be placed in an upright position </center>
  
−
Before placing it, please remember to flatten the edges of the inlet pipe so that it can stand on its own.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|
 +
Exactly on this hole-
 +
* place the inlet pipe of 6 inches diameter firmly in an upright position.
  
−
Importantly, the pipe should be placed when the cement mixture is still wet.
+
 
 +
 
 +
Before placing it, please remember-
 +
* to flatten the edges of the inlet pipe so that it can stand on its own.
 +
 
 +
 
 +
Importantly-
 +
* the pipe should be placed when the '''cement''' mixture is still wet.
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| As each step is followed by another in quick succession, the mason should plan well -
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|
 +
As each step is followed by another in quick succession, the mason should plan well.
 +
 
  
 
This will help him not to loose time and the right moment.
 
This will help him not to loose time and the right moment.
Line 260: Line 308:
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Now, spread cement mixture around the pipe, using the small trowel.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
Now, spread '''cement '''mixture around the pipe, using the small trowel.
 +
 
  
 
This will make the pipe stand firmly.
 
This will make the pipe stand firmly.
Line 266: Line 316:
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Note that the inlet pipe will be removed when the cement is dry.  
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
Note that the pipe will be removed when the '''cement''' is dry.  
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| [[Image:]]
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| [[Image:]]
  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| After the pipe is removed, this is how the hole would look like
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
After the pipe is removed, this is how the hole would look like
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| [[Image:]]
 
| style="border:0.75pt solid #000000;padding:0.071cm;"| [[Image:]]
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| The prepared walls are left for drying for 2 days and will be used on day 4.
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
The prepared walls are left for drying for two days and will be used on day 4.
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| This brings us to the end of this tutorial
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
This brings us to the end of this tutorial
  
 
|-
 
|-
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Assembly of the walls of the tank will be explained in a later tutorial.  
+
| style="border:0.75pt solid #000000;padding:0.071cm;"|  
 +
Assembly of the walls of the tank will be explained in a later''' tutorial. '''
  
 
|-
 
|-
Line 294: Line 349:
 
* How to build the walls of the slurry tank.
 
* How to build the walls of the slurry tank.
  
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| In this tutorial, we have learnt-
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Let us summarize-
 +
 
 +
In this '''tutoria'''l, we have learnt-
  
 
* How to build the walls of the slurry tank.
 
* How to build the walls of the slurry tank.
  
 
|-
 
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 10
+
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 3
 +
 +
Acknowledgements
  
−
Acknowledgements
+
This video was created by:
  
−
* This video was created by Spoken Tutorial project with inputs from Rural-ICT Project, IIT Bombay.
+
'''Spoken Tutorial Project''' with inputs from '''Rural-ICT team, IIT Bombay.'''
−
* More information on these projects can be found at these links
+
| style="border:0.75pt solid #000000;padding:0.176cm;"| This video was created by-
  
−
http://spoken-tutorial.org/NMEICT-Intro
+
'''Spoken Tutorial Project''' with inputs from '''Rural-ICT team, IIT Bombay.'''
  
−
http://ruralict.cse.iitb.ac.in
+
|-
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| T This video was created by
+
| style="border:0.75pt solid #000000;padding:0.176cm;"| More information on these projects can be found at these links
  
−
Spoken tutorial project with inputs
+
http://spoken-tutorial.org/NMEICT-Intro
  
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from Rural-ICT Project, IIT Bombay
+
http://ruralict.cse.iitb.ac.in/ in
  
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* More information on these projects can be found at these links
+
| style="border:0.75pt solid #000000;padding:0.176cm;"| More information on these projects can be found at these links.
  
 
http://spoken-tutorial.org/NMEICT-Intro
 
http://spoken-tutorial.org/NMEICT-Intro
  
−
http://ruralict.cse.iitb.ac.in
+
http://ruralict.cse.iitb.ac.in/ in
  
 
|-
 
|-
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| style="border:0.75pt solid #000000;padding:0.071cm;"|  
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| style="border:0.75pt solid #000000;padding:0.176cm;"|
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| style="border:0.75pt solid #000000;padding:0.071cm;"| Pictures and technology support:
+
 
 +
Pictures and technology support:
  
 
Courtesy:
 
Courtesy:
  
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Bhagirath Rural Development foundation
+
'''Bhagirath Rural Development Foundation'''
  
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Village- Zarap, Taluka- Kudal,
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'''Village- Zarap, Taluka- Kudal,'''
  
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Dist.- Sindhudurg
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'''Dist.- Sindhudurg '''
 +
 +
| style="border:0.75pt solid #000000;padding:0.176cm;"|
  
−
|-
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Pictures and technology support:
−
| style="border:0.75pt solid #000000;padding:0.071cm;"|
+
−
| style="border:0.75pt solid #000000;padding:0.071cm;"| This is Bella Tony along with the
+
  
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Animation team from Spoken
+
Courtesy:
  
−
Tutorial Project, IIT Bombay signing
+
'''Bhagirath Rural Development Foundation'''
  
−
off.
+
'''Village- Zarap, Taluka- Kudal,'''
 +
 
 +
'''Dist.- Sindhudurg '''
 +
 
 +
|-
 +
| style="border:0.75pt solid #000000;padding:0.176cm;"|
 +
| style="border:0.75pt solid #000000;padding:0.176cm;"| This is Bella Tony along with the animation team of the '''Spoken''' '''Tutorial''' project signing off.
  
 
Thank you for joining.
 
Thank you for joining.
  
 
|}
 
|}

Latest revision as of 17:41, 3 June 2016

Visual Cue
Narration
Slide 1

Building the walls of the slurry tank

[[Image:]]

Hello everyone.

Welcome to this Spoken Tutorial on building the walls of the slurry tank.

This is an activity to be done on Day 2.

Slide 2

Learning Objectives


We will learn:

  • How to build the walls of the slurry tank
In this tutorial, we will learn-
  • how to build the walls of the slurry tank.
Slide 3

Building the walls of the slurry tank

What is a slurry tank?

Let’s first understand what is a slurry tank.

Image

Slurry-


1. Is the most important by-product of the fermentation-

  • that takes place inside the digester tank.

2. This slurry comes out of the digester tank and is collected in the slurry tank.

Slide 4

Building the walls of the slurry tank

Position of the slurry tank?

Let’s look at the position of the slurry tank with respect to the Biogas plant.
Image The slurry tank is placed-
  • in line with the entrance of the dome.
Slide 5

Building the walls of the slurry tank

Shape of the tank?

What is the shape of the tank?
Image These tanks are rectangular in shape.
Image

Arrows at the upper tank and the smaller tank.

What you see here is the pictorial representation of the slurry tank.


The slurry tank is divided into-

  1. Small tank and the upper tank.
  2. The small tank is enclosed within the upper tank.
# Entrance view of this image
  1. Arrow at the hole
  2. Show dimensions

Notice-


1. The pink colored walls of the smaller tank-

  • enclosed inside the blue colored upper tank.

2. Also note, the upper tank has an outlet hole.

3. The lower tank is in line with the entrance to the digester tank.

Slide 6

Building the walls of the slurry tank

How many walls have to be built for constructing the slurry tank ?

So, in total, how many walls have to be built for constructing the slurry tank?
Image Total 7 walls have to be constructed to build the slurry tank.

The various dimensions are shown in the image.

Image

Items used for construction are

  • Steel rods and
  • Chicken mesh


Detailed specifications of these are mentioned in the tutorial on Materials required.

Image

To begin with,


Insert one of the 3 steel rods through the holes of the chicken mesh.

Image Insert these steel rods through sufficient number of holes.


This will ensure that the rod will not slide while placing it on the cement plaster.

Image

Next, lay a plastic sheet on the ground.

<center>[[Image:]]

Use a measuring tape to mark boundary for-

  1. height
  2. width
  3. breadth
Image
[[Image:]]
[[Image:]]

We will spread the cement mixture within this boundary, on the plastic sheet.

Prepare cement mixture as follows-

  • Sand- 150 kgs
  • Cement-50 kgs
  • Liquid waterproofing material -150 ml thoroughly stirred in 20 litres of water.
  • And adequate water to mix the cement mixture well

Note- that no gravel is used in this mixture.

[[Image:]]

To begin with,


First, spread 1.5 inches thickness of the cement mixture.


Spread it between the boundary of the wall.

[[Image:]]

Now carefully-


1. Place the chicken mesh with inserted steel rods on this cement mixture.

2. This chicken mesh with inserted steel rods serve as-

  • a support for the cement mixture.

Care should be taken to-


1. Leave an extra 4-5 inches of chicken mesh at either sides of each wall.

2. This will be entwined or interlocked-

  • with the chicken mesh left at the edges of the dome.

3. Doing this will help fixing the walls of the slurry tank with the dome.

[[Image:]]

In the earlier two images, we saw-

  • a hole in only one of the walls of the slurry tank.
[[Image:]]

Slide 7

Building the walls of the slurry tank

Significance of a hole in one of the walls of the slurry tank.

Now let’s talk about the significance of this hole.
[[Image:]]

[[Image:]]

It is this hole from where-
  1. the slurry smoothly comes and
  2. flows out to the agricultural field.
Slide 8

Building the walls of the slurry tank

How to make a hole in the wall of the slurry tank?

So how to make this hole in the wall of the slurry tank?
[[Image:]]
 To make a hole, use the inlet pipe of 6 inches diameter.


Attention should be paid to this particular wall before fitting the pipe on it.

[[Image:]]

[[Image:]]

[[Image:]]

[[Image:]]

[[Image:]]
 To begin with:


1. Use a scissor and cut the Chicken mesh to make a hole of 6 inches diameter.

2. Then insert the Steel rods as explained earlier-

  • on either side of the 6 inch diameter hole.

3. Now lay this mesh with a hole-

  • on the cement mixture spread on the plastic sheet.

4. The thickness of this cement mixture should be 1.5 inches.

[[Image:]]
Point where the pipe has to be placed in an upright position

Exactly on this hole-

  • place the inlet pipe of 6 inches diameter firmly in an upright position.


Before placing it, please remember-

  • to flatten the edges of the inlet pipe so that it can stand on its own.


Importantly-

  • the pipe should be placed when the cement mixture is still wet.
[[Image:]]

As each step is followed by another in quick succession, the mason should plan well.


This will help him not to loose time and the right moment.

Now, spread cement mixture around the pipe, using the small trowel.


This will make the pipe stand firmly.

Note that the pipe will be removed when the cement is dry.

[[Image:]]

After the pipe is removed, this is how the hole would look like

[[Image:]]

The prepared walls are left for drying for two days and will be used on day 4.

This brings us to the end of this tutorial

Assembly of the walls of the tank will be explained in a later tutorial.

Slide 9

Summary

In this tutorial, we have learnt :

  • How to build the walls of the slurry tank.
Let us summarize-

In this tutorial, we have learnt-

  • How to build the walls of the slurry tank.
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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