With a pinch of
Salt ?
Context :
BMC, Israeli co ink pact for state’s first
desalination plant /
TOI / 29 June 2021
Extract :
How much
will this cost to produce 1,000 litres of water ?
My guess :
Ø
Capital
Cost……………………….. Rs 1,600 crore
Running Cost
Ø
Interest
@ 15 %........................................................... Rs 240 Cr
Ø
Depreciation
@ 10 %..................................................... Rs
160 Cr
Ø
Operating
Expenses @ 20 % ( Manpower+Electricity+OH )… Rs 320
CR
TOTAL ……………………………………………………………………………………………….Rs 720 Cr
Assuming 360 working days ( to round-up ),
this works out to……….Rs 2 Cr / day ( = Rs 20,000,000 )
To produce 200 MLD = 200, 000,000 litre per
day
Works out to Rs 20 / 200 litre ( Rs 100 / 1,000 litre,
as against Rs 18 / 1000 litre reported in
the news !
Where
am I goofing up ?
In running / operating cost of a
desalination plant, ELECTRIC POWER constitutes 44 %
(
Refer : The Cost of Desalination )
In the news report there is no mention that
that this Maharashtra plant would use any Renewable ( Solar / Wind / Hydro
power )
So, it would draw a
huge amount of electric power produced using COAL
How much Air
Pollution will that increase ?
Will that project
report by the Israeli Company ( expected by May 2022 ) , bring out this ENVIRONMENT
IMPACT ?
Now consider this :
( Source : Water from Air ? Or
from Sea ? / 29
Oct 2020 )
Ø Data shared by Chennai Metrowater Supply and Sewerage Department
(CMWSSD) specifies the breakup of the expenditure on various modes of procuring
water as in the table below:
|
Source |
Capital
Cost per MLD (in Rs) |
O & M Cost per MLD (in Rs) |
|
Desalination
plants |
15.30
crores |
68,000 |
|
Surface
Water resources |
7.70
crores |
6000 –
23,000 Ave of
Rs 14,500 |
Ø
Proposed
100 MLD desalination plant propose by Gujarat will have a
Capital Cost = Rs 1000 Cr
( source : A Desperate Measure ? / 18 Nov 2018 )
( Remember :
This is for DRINKABLE water as against proposed Maharashtra plant producing
un-drinkable water, suited for Industrial use, gardening, and such purposes –
as reported in above-mentioned news )
And , at that Capital Cost ( using same set of
calculations as above ), per litre production cost at Gujarat plant will be……….
Rs 0.10 / litre ( = Rs 100 / 1000 litre – same
as for Maha plant )
Dear Shri Gajendra Singh Shekhawatji
( Minister
for Jalshakti / minister-jalshakti@gov.in ),
I
urge you to,
Ø
Release,
a CENTRAL POLICY GUIDELINES for States to set up coast-based Desalination
Plants
Ø
Set
up a team of SCIENTISTS / TECHNOCRATS to evaluate number of technologies ,
promising extraction of DRINKABLE WATER from AIR , using no more than Solar
Energy ( there is one which can extract water from air even at NIGHT ! )
With regards,
Hemen Parekh / 30
June 2021
RELATED READINGS :
New Device Produces Water From Thin Air – No Electricity
Required
A candid admission ? ………………………………………………..[ 12
July 2019 ]
Water above our heads……………………………………………..[ 29 Mar
2019 ]
Making Water from Air ? …………………………………………..[ 26 Oct
2018 ]
Water
Mutiny of 2020…………………………………………….[ 17 June 2018 ]
Water Wars Are
Looming !....................................[
09 June 2018 ]
Writing
is on the Wall ……………………………………………[ 08 May 2018 ]
Replicating
Nature ?..........................................[
23 Mar 2018 ]
Deja Vu ? #Latur
#Marathwada #Waterwar……………..[ 28 Feb 2018 ]
Water Water
Everywhere ? Even in Latur ?...............[ 15 Apr 2017 ]
Not a straightforward
Answer ! ………………………………..[
03 Mar 2017 ]
Water Wars ? ………………………………………………………….. [ 08 Apr 2016 ]
|
No comments:
Post a Comment