Biogas-Plant/C3/Building-the-walls-of-the-Slurry-tank/English - Revision history

Nancyvarkey at 12:11, 3 June 2016

2016-06-03T12:11:57Z

Bellatony911 at 11:56, 3 June 2016

2016-06-03T11:56:49Z

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Nancyvarkey at 11:07, 1 June 2016

2016-06-01T11:07:03Z

Bellatony911 at 07:53, 31 May 2016

2016-05-31T07:53:03Z

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Bellatony911: Created page with " {| style="border-spacing:0;" | style="border:0.75pt solid #000000;padding:0.071cm;"| Visual Cue | style="border:0.75pt solid #000000;padding:0.071cm;"|
2016-04-28T06:52:48Z

Created page with " {| 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;"| <cent..."

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{| 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>Narration</center>

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 1'''

'''Building the walls of the slurry tank'''

<nowiki>[[Image:]] </nowiki>
| style="border:0.75pt solid #000000;padding:0.071cm;"| 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.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 2'''

'''Learning Objectives'''

We will learn:

* How to build the walls of the slurry tank

| style="border:0.75pt solid #000000;padding:0.071cm;"| In this tutorial, we will learn-

* how to build the walls of the slurry tank.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 3'''

'''Building the walls of the 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;"| <nowiki>[[Image:]] </nowiki>
| 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.

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'''

'''Building the walls 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;"|
| style="border:0.75pt solid #000000;padding:0.071cm;"| The slurry tank is placed-

* in line with the entrance of the dome.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 5'''

'''Building the walls of the slurry tank'''

<nowiki>[[Image:]] </nowiki>

Shape of the tank?
| style="border:0.75pt solid #000000;padding:0.071cm;"| What is the shape of the tank?

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| <nowiki>[[Image:]] </nowiki>
| 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;"| What you see here is the pictorial representation of the slurry tank.

The slurry tank is divided into-

* Small tank and the upper tank.
* The small tank is enclosed within the upper tank.

|-
| 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.

Also note, the upper tank has an outlet hole.

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

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| '''Slide 6'''

'''Building the walls of the slurry tank'''

How many walls have to be built for constructing the slurry tank ?
| style="border:0.75pt solid #000000;padding:0.071cm;"| So, in total, how many walls have to be built for constructing the slurry tank?

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"|
| style="border:0.75pt solid #000000;padding:0.071cm;"| Total 7 walls have to be fabricated to build the slurry tank.

The various dimensions are shown in the image.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center><nowiki>[[Image:]] </nowiki></center>

<center><nowiki>[[Image:]] </nowiki></center>

<center><nowiki>[[Image:]] </nowiki></center>

| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>Items used for construction are-</center>

* steel rods and
* 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;"|
| style="border:0.75pt solid #000000;padding:0.071cm;"| What you see here is the dimensions of one of the seven walls.

And one of the 3 steel rods inserted 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;"| 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.

|-
| 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.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center><nowiki>[[Image:]] </nowiki></center>

<center><nowiki>[[Image:]] </nowiki></center>
| style="border:0.75pt solid #000000;padding:0.071cm;"| Use a measuring tape to mark boundary for-

# height
# width
# breadth

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center><nowiki>[[Image:]] </nowiki></center>

<center><nowiki>[[Image:]] </nowiki></center>

<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.

Prepare cement mixture as follows-

* Sand- 150 kgs
* Cement-50 kgs
* Liquid waterproofing material -150 ml thoroughly stirred in 20 ltrs of water.
* Adequate water to mix the cement mixture well

Note- that no gravel is used in this mixture.

|-
| 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.

Spread it between the boundary of the wall.

|-
| 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.

This chicken mesh with inserted steel rods serves 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;"| 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.

* 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;"| 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:]]

'''Slide 7'''

'''Building the walls of the slurry tank'''

Significance of a hole in one of the walls of the slurry tank.
| style="border:0.75pt solid #000000;padding:0.071cm;"| Now let’s talk about the significance of this hole.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| [[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;"| '''Slide 8'''

'''Building the walls of the slurry tank'''

How to make a hole in the wall of the slurry tank?
| style="border:0.75pt solid #000000;padding:0.071cm;"| So how to make this hole in the wall of the slurry tank?

|-
| 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.

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

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| <center>[[Image:]]</center>

[[Image:]]

[[Image:]]

[[Image:]]

<center>[[Image:]]</center>
| 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.

Now lay this mesh with a hole on the cement mixture spread on the plastic sheet.

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;"| 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.

|-
| 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 -

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

|-
| 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.

This will make the pipe stand firmly.

|-
| 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;"| [[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;"| [[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;"|
| 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;"| Assembly of the walls of the tank will be explained in a later tutorial.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 9

Summary

In this tutorial, we have learnt :

* How to build the walls of the slurry tank.

| style="border:0.75pt solid #000000;padding:0.071cm;"| In this tutorial, we have learnt-

* How to build the walls of the slurry tank.

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"| Slide 10

Acknowledgements

* This video was created by Spoken Tutorial project with inputs from Rural-ICT Project, 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
| style="border:0.75pt solid #000000;padding:0.071cm;"| T This video was created by

Spoken tutorial project with inputs

from Rural-ICT Project, 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

|-
| style="border:0.75pt solid #000000;padding:0.071cm;"|
| style="border:0.75pt solid #000000;padding:0.071cm;"| Pictures and technology support:

Courtesy:

Bhagirath Rural Development foundation

Village- Zarap, Taluka- Kudal,

Dist.- Sindhudurg

|-
| 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

Animation team from Spoken

Tutorial Project, IIT Bombay signing

off.

Thank you for joining.

|}

@@ Line 139: / Line 139: @@
-Insert 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.
-−
 |-
@@ Line 153: / Line 152: @@
 | style="border:0.75pt solid #000000;padding:0.071cm;"|
 Next, lay a '''plastic''' sheet on the ground.
 |-
@@ Line 202: / Line 200: @@
 . Place the chicken mesh with inserted '''steel '''rods on this '''cement '''mixture.
-. This chicken mesh with inserted '''steel '''rods serves as-
+. This chicken mesh with inserted '''steel '''rods serve as-
 * a support for the '''cement''' mixture.
@@ Line 303: / Line 301: @@
 | 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-
+As each step is followed by another in quick succession, the mason should plan well.
-* 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 10: / Line 10: @@
 [[Image:]]
 | style="border:0.75pt solid #000000;padding:0.071cm;"| Hello everyone.
@@ Line 16: / Line 15: @@
 This is an activity to be done on Day 2.
 |-
@@ Line 26: / Line 24: @@
 * How to build the walls of the slurry tank
 | style="border:0.75pt solid #000000;padding:0.071cm;"|
 In this '''tutorial,''' we will learn-
@@ Line 42: / Line 38: @@
 |-
 | style="border:0.75pt solid #000000;padding:0.071cm;"| Image
-| style="border:0.75pt solid #000000;padding:0.071cm;"| Slurry-
+| 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.
-. This slurry comes out of the digester tank and is collected in the slurry tank.
+#is the most important by-product
 |-
@@ Line 60: / Line 56: @@
 | style="border:0.75pt solid #000000;padding:0.071cm;"| Image
 | style="border:0.75pt solid #000000;padding:0.071cm;"|
-The slurry tank is placed-
+The slurry tank is placed in line with the entrance of the dome.
-−
-* in line with the entrance of the dome.
 |-
@@ Line 139: / Line 133: @@
 | style="border:0.75pt solid #000000;padding:0.071cm;"| Image
 | 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, insert the 3 '''steel''' rods through the holes of the chicken mesh.
-−
-−
-And one of the 3 '''steel''' rods inserted 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.
 |-
@@ Line 284: / Line 270: @@
 . The thickness of this '''cement '''mixture should be 1.5 inches.
 |-
@@ Line 308: / Line 293: @@
 | 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-
+*As each step is followed by another, in quick succession, the mason should plan well.
-−
-The mason should plan well -
-* this will help him not to loose time and the right moment.
 |-
@@ Line 332: / Line 315: @@
 | style="border:0.75pt solid #000000;padding:0.071cm;"|
 After the pipe is removed, this is how the hole would look like.
 |-
@@ Line 364: / Line 346: @@
 * How to build the walls of the slurry tank.
 |-