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Home > Sulabh Technologies > Economic nad Environmental Benefit of Sulabh Technologies
Economic nad Environmental Benefit of Sulabh Technologies
Calculated Per Year Water
Saved If Sulabh Two-pit
System Is Implemented For 700 Million
People
Using Sulabh toilet an amount of 8 litres of water per
flush is saved per person in comparison to septic
tank that requires 10 litres of water to flush toilet
( Sulabh requires only 2 litres of water to flush).
If 700 million people use such a toilet a calculated
amount of 5,600 million litres of water will be saved
per flush. Taking into account use of flush twice a
day the figure will be 11,200 million litres per day or
40, 88,000 million litres per annum.
| Total Numbers of users per day n |
= 700 millio |
| Water used in Sulabh two pit toilets |
= 2 litres |
| If used Sulabh two pit toilet in used
then water used |
= 700 million X 2 litres |
| |
= 1,400 million litres |
Had it been Septic Tank
| Water used in septic tank |
= 10 litres |
| Hence, water used per day |
= 700 million X 10 Litres |
| Water saved in one day by 700 million people |
= 7,000 million litres |
| |
= (7,000–1,400) million litres
= 5,600 million litres |
| If toilet is used twice a day |
= 5,600X2 million litres
= 11,200 million litres |
Water saved in a day=11,200 million litres So, water saved in one year
| By Sulabh two- pit system |
= (11,200 X 365)million litres
= 40, 88,000 million litres |
Water Saved From Existing
Sulabh Two-pit Toilet In One Year
Sulabh has implemented over 1.2 million two-pit toilet, where per flush only 2 litres of water is required. Assuming 7 persons of a family per toilet it save 56 litres of water per flush in comparison to septic tank system. Assuming two times flush per day one unit will save 112 litres of water per day i.e. (1.2 X 112 ) million litres = 134.4 million litres per day i.e. 49,056 million litres per annum.
| No. of Two-pit Toilets constructed by Sulabh |
= 1.2 million |
| No. of persons who use one toilet (average) |
= 7 |
| No. of times use toilet (average) |
= 2 |
| Total No. of users per day, 1.2 million x 7 |
= 8.4 million |
| Water used in Sulabh two-pit toilet |
= 2 Litres |
| So, water used by 8.4 million people |
= 2 litres x 8.4 million
=16.8 million litres |
Had it been Septic tank
So, Water saved in a day=134.4 million litres Hence, Water saved in one Year by Sulabh
two-pit system
=(134.4 x 365) million litres
= 49056 million litres
Cost of Manure from existing Sulabh two-pit toilet in one year
| No. of toilets constructed by Sulabh (Twin-Pit |
=1.2 millions |
| Average family members |
=7 |
| Manure obtained from a person in a year |
=40 kg. |
| Cost of manure |
= Rs. 5 per kg. |
| Hence, the Cost of Manure by Sulabh twin-pit
toilet is |
= 1,20,000 x 7 x 40 x 5
= Rs. 1,680 million
= Rs. 1,680 million per year |
Cost of Manure from toilets to be constructed by Sulabh twin-pit toilet for 700 million people per year 1 person produces 40 kg manure in 1 year
| 700 million persons produce |
= 40 x 700 million kg manure
= 28000 million kg. manure
= 28 million tons manure |
Cost of Manure (in 1 year)
Cost of 1 kg of manure is Rs. 5.00
Cost of 28000 million kg. manure
Rs. 5 x 28000 million |
= Rs. 1, 40,000 million |
Cost recovered from for 1,000 user's biogas
plant, in the form of energy per year
| One person produce |
= 1 cft of biogas |
| per day So, from a Public Toilet of 1,000 users
we get |
= 1000 Cft of Biogas (30 cum) |
| 30 cum of Biogas |
= 4.6 gallons of diesel |
| 4.6 gallons of diesel |
= 4.6 x 4.55 litres of diesel
= 21 litres |
So, in a day we get 21 litres of diesel
| Hence, total diesel obtained in a year |
= 21 x 365
= 7,665 litres/year |
| Cost of diesel @ Rs. 32/- |
= 7,665 x 32
= Rs.2,45,280 |
per year for one biogas plant of 1000 users Contribution Of Sulabh To Save Global Warming
| No. of Two-pit Toilet constructed by Sulabh |
=1.2 million |
| Average users of Toilet per day |
=7 |
| So, total Nos. of users |
=(1.2 x 7) million
= 8.4 million |
1 person produced 1 cft biogas per day
So, 8.4 million persons produced |
=(1 x 8.4) million biogas per day
= 8.4 million cft biogas
= 240000 cum. |
| So, total biogas absorbed in soil |
= 0.24 million cum Biogas per day |
| Total Biogas absorbed in soil in |
=(0.24 x 365) million cum |
| |
|
| one Year |
= 87.6 million cum |
| |
|
| If 700 million people used Sulabh two-pit System |
|
| Then total Biogas produce in
1 day |
= 700 million x 1 cft
=
700 million cft
= 20 million cum |
| So, total biogas can be absorbed in soil in
one year (by Sulabh |
= 20 million cum x 365 |
| Two-pit system) |
= 7300 million cum |
| 170 Biogas Plant constructed by Sulabh |
|
| Average Biogas production per Plant/day |
=45 cum |
| So, total biogas production per day |
= (170 x 45) cum =7650 cum |
| Hence, Biogas produced in a year |
= 7650 cum x 365 = 2792250 cum
= 2.8 million cum |
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