A
technology is termed as appropriate only if it creates harmony
between man machine. An appropriate technology is not merely a
people-friendly innovation but an eco-friendly one too. In simple
terms, it justifies Mahatma Gandhi’s philosophy of a more human
technology whose accent in on ‘production by the masses’ and not
‘mass production’.
The
Vision
It is
with this vision of innovating and introducing people-oriented
technologies that a Delhi-based organisation TARA or Technology for
Action for Rural Development came to the fore in the early eighties.
TARA is a technology promotion wing of Development Alternatives. It
is an attempt to evolve an egalitarian development paradigm, which
is socially just and in harmony with nature, through the widespread
dissemination of appropriate technologies.
E F
Schumacher, the world-famous author of the book ‘Small Is
Beautiful’, unfolded that the appropriate technologies are
generally small in scale, decentralised in character and
people-friendly in nature. They minimise waste, pollution and the
use of non-renewable resources. It is vital to empower the local
rural people with such technologies that could be converted into
sustainable livelihoods.

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A
View of the IGNCA Building at New Delhi, Constructed with TARA
Technologies |
Sustainable
Livelihoods
Sustainable
livelihood creation basically translates into the creation of
livelihoods that empower individuals to earn enough money to provide
for basic amenities such as food, clothing and shelter, without
destroying the natural resource base. It also enables people to lead
a life of dignity in a
sustainable manner.
In
simple terms, creating sustainable livelihoods is the only path
leading to the ultimate goal of sustainable development. In order to
be sustainable, the development process has to be equitable,
efficient, ecological and empowering. And, in the Indian context,
self-employment is the best route to true empowerment of the
marginalized and neglected - especially women and the rural poor.
Similar is the case of the urban poor who form 48 to 50 percent of
any metropolis, living in shanty towns or slums.
Converting
Technologies into Trades
Development
Alternatives plans to create millions of jobs by establishing
micro-enterprises through its commercial wing — TARA. The
main aim of TARA is to demonstrate the economic viability and
feasibility of Development Alternatives’ innovations to provide
work and dignity to the rural and urban poor of India. The entire
TARA venture is driven by an urge to convert appropriate
technologies into sustainable trades and useful, marketable
products.
The
basic premise of making these TARA products is that all of them are
designed to maximise benefits to the community and local economy and
to minimise damages to the environment and resource base. The
sustainable enterprises promoting the TARA technologies are
basically small, decentralised, and utilise renewable local
resources.
The
Beginning
The
very first product to emerge out of the TARA assembly line was an
improved wood cookstove. This cookstove, termed the TARA Shakti
Chulha, was low on fuel-consumption and also low on smoke-emissions
in the kitchen.
Studies
reveal that the conventional cookstove or Chulha emits so much smoke
that one hour in that smoke-filled kitchen is like smoking ten
packets of cigarettes at a time. The smokeless TARA Chulha checked
this health hazard and reduced the drudgery of rural women who
traversed several kilometres each day to procure just a few twigs of
firewood. Thus, this improved cookstove design prevented
deforestation to a great degree and also brought down the passive
smoking of millions of housewives.
Tens
of thousands of TARA Shakti Chulhas have been sold and several more
copied by local manufacturers all across the subcontinent as well as
abroad.
This
was the very first venture of TARA and a successful one at that.
Development Alternatives and TARA have come a long way from those
days of early eighties and have a basketful of innovations today.
Appropriate
Technologies
Though
the TARA technologies cover the whole range of the rheostat, some of
the prominent ones are:
TARA
Tile Maker
The
dream of roofing the millions of homeless people of India
would only come true once the cost of roofing a house is
affordable for the man in the street. In fact, one could
easily construct the four walls of a house with sun-baked clay
bricks or some other cheap construction material but when it
comes to roofing, the cost really hits the ceiling. And, if
one does build a cheap roof it may not be durable enough. So,
TARA gives an offer which one can not refuse - a roofing tile
which does not cost the earth and is durable, apart from being
an economically viable proposition for the homeless.
These
tiles are called the Micro Concrete Roofing (MCR) tiles and
are sold under the brand name of TARAcrete. Made of cement and
sandstone, the TARAcrete roofing tiles are affordable, light,
leak-proof and long lasting. These tiles allow total creative
freedom to architects and engineers to design a variety of
roof forms, without worrying about the cost factor. The
machine used for producing these MCR tiles, known as the TARA
Tile Maker, is also manufactured by TARA.
A
product of intensive R&D, carried out by the Technology
Systems Branch of Development Alternatives, the TARA Tile
Maker makes roofing tiles of international quality. TARA also
provides training in MCR tile-making technology to small,
local, entrepreneurs so that they get a chance to earn up to
10,000 rupees each month. |

MCR
Tiles
l
Aesthetically Appealing
l
Durable
l
Versatile (Roofshapes, Colours
&
Patterns)
l
Neat Underside
l Cost Effective
q
Ideal business opportunity q
Environment-friendly
& economically viable |
Technology
available at Development Alternatives |
TARA
Balram Mud Block Press
If
one has to address the problem of providing shelter to each
and every person on this planet, then the only way out is to
build houses with mud, even in the twenty-first century. So,
building with mud seems to be the only sustainable option to
address the current shelter crisis.
Building
houses with burnt mud bricks is not an environment-friDendly
proposition as the conventional brick kilns or clamps emit a
lot of smoke and are highly energy-intensive in nature.
Hence, the need for construction technologies like the
Compressed Earth Block (CEB) and the Vertical Shaft Brick
Kiln (VSBK) which are eco-friendly and low-energy consuming
alternatives.
The
Compressed Earth Block (CEB) technology has proved to be
another economical and a time-tested masonry system. It is
an environmentally sound technology since the only energy it
utilises is that of the sun to bake the mud bricks which are
compressed in a manually operated machine. These mud bricks
are as good as burnt mud bricks in terms of strength and
load-bearing capacity. Stabilising them with 4 to 6 percent
of cement makes the stabilised mud brick a durable and
affordable product. Currently, these sun-baked bricks are
being prolifically used in constructing residential and
community buildings in both urban and rural regions. The
machine used for making these compressed bricks is known as
the TARA Balram.
TARA
Balram, manufactured and marketed by TARA, is a simple,
rugged, machine that compresses ordinary soil into dense
masonry units with strength and water resistance, engineered
as per the need. These compressed soil blocks can be used
for a variety of construction applications to make strong
buildings. TARA Balram’s operation process can be learnt
in just a few days and the training is provided by TARA at
their centres in Delhi, Jhansi and Bangalore, besides users’
sites. |

Compressed
Earth Block (CEB)
l
Low Energy
Consumption
l Uniform
Size
l High
Strength
l Thermal
Insulation
l Cost
Effective
q
Ideal business opportunity q
Environment-friendly
and
economically viable |
Technology
available at
Development Alternatives |
Vertical
Shaft Brick Technology
This
technology is a boon for the conventional brick makers who are still
using the age-old technology of piling crude clay bricks in a heap
and burning them with a non-renewable energy resource like coal. The
VSBK technology provides the best quality bricks with the least
energy consumption due to its efficient design.
The
Vertical Shaft Brick Kiln comprises one or more shafts which are
loaded at the top with sun-dried mud bricks for firing purposes .The
firing zone is in the middle. The fired bricks are cooled by the
draught of air moving up from below. They are lowered down with the
help of a trolley which is moved out to unload the bricks from the
bottom of the kiln. There is no wastage of heat in VSBK, hence it is
a highly energy-efficient technology.
Thus,
VSBK has a positive impact on forests, climate change and the local
air-quality.
Ferrocement
Roofing Channels
The
ferrocement technology package for roofing, developed by DA,
utilises state-of-the-art design principles to manufacture
reinforced shells, commonly called channels. They are
produced on specially designed vibrating tables and profiled
moulds. The production system is uniquely tailored to
provide special details, consistent shape and thickness –
all crucial for high performance.
These
channels made with an optimised proportion of cement, sand
and water, have a very high density, are impervious to
penetration of water and provide high structural strength.
Ferrocement roofing channels produced on mechanised
equipment can be used for intermediate floor applications as
well.
This
technology offers a viable alternative to conventional flat
roofing systems such as reinforced cement concrete,
reinforced brick cement, sand stones, etc. in both rural and
urban areas of the country. |

Ferrocement
Channels
l
Elegant Profile
and Uniform Sizes
l Large
Spans possible with Intermediate Support
l High
Strength to Weight Ratio
l Lower
Deal Load on Walls
l Speedy
Installation without Shuttering
q
Ideal business opportunity q
Environment-friendly
and economically viable |
Technology
available at Development Alternatives |
TARA
Concrete Block Making Machine
Concrete
Block Technology offers a speedier, economical and
eco-friendly alternative to conventional walling materials.
It is based on the principle of densification of a lean
concrete mix to make a regular shaped, uniform, high
performance masonry unit. Concrete Block Technology can be
easily adapted to suit the special needs of users by
modifying design parameters such as the mix proportion,
water/cement ratio and the type of production system. It is
an effective means of utilising the waste generated by stone
crushers, quarrying and stone processing units. The
technology has a high potential in regions where the raw
material is easily available.
The
TARA concrete block making machine provides the optimum
vibration in the concrete mix so that the ratio of cement
used can be reduced substantially without compromising on
the strength of the blocks. On an average, around 800 blocks
can be made in eight hours by one skilled and six or seven
semi-skilled workers. |

Concrete
Blocks
l
Cost Effective
l Faster
Construction
l
Utilisation of Wastes & Local
Resources
l
Structural Performance can be
Engineered
q
Ideal business opportunity q
Environment-friendly
and
economically viable |
Technology
available at Development Alternatives |
Wealth
from Waste
One
such interesting technology is the hand-made paper technology. All
the paper used in our offices for writing and printing purposes or
the umpteen number of books one reads or the note books one writes
upon, actually, is created by cutting down huge forests. And,
deforestation means more air-pollution, more greenhouse gases and
depletion of the ozone cover protecting our plant earth. So, why not
use recycled paper that is made out of paper waste, cotton rags and
other cellulose waste? We can easily turn these rags into riches by
using a mini paper-recycling plant.
In
fact, students of the Delhi based Bal Bharti Air Force School are
using one such ‘baby’ paper plant to publish their in-house
journal. The process is literally a child’s play and is extremely
safe as there are no chemicals involved in the entire paper-making
process. The cotton waste is dumped in a tub or ‘vat’ full of
water. After sometime it disintegrates into pulp that is later
lifted with the help of a sieve and dried to give a nice sheet of
paper. This recycled paper is already being used for making lamp
shades, gift boxes, carry bags, lap top boxes, files, letter pads,
diaries and conference bags.
Friends of the Earth
Vermi-composting
and natural composting are two wonderful technologies which serve
humanity and conserve nature. Composting, basically, is the
biological reduction of organic wastes to humus. Whenever a plant
dies, its remains are attacked by soil micro-organisms and are
reduced to an earth-like substance that is beneficial for the growth
of the plant roots. Such natural composting is an integral part of
the wheel of life.
All
you have to do is to make a pit in your garden at home or school and
dump in all the dried leaves or the garden waste. You can decompose
the waste by alternatively layering the pit with the waste and soil.
This will generate a natural compost or fertiliser that could be
used in the school garden.
This
organic manure could also be sold to students, their parents or in
neighbourhoods and the funds could be utilised for nature club
activities.
Vermi-composting
is yet another process to convert biodegradable waste into rich
humus by using earthworms. In simple terms, this method utilises
earthworms to turn your kitchen waste into a nitrogen-rich manure.
It is nothing short of a miracle that once the worm gulps down your
kitchen waste, the ingested matter undergoes chemical changes to
give out a rich plant food.
All
schools have their own canteens and they could adopt this
technology. Vermi-composting technology not only solves the problem
of solid waste to the extent of giving rich compost in return, it
also helps students realise the importance of small creatures like
earthworms and helps them shed their fear.
Actually,
you have to simply separate the earthworms from the compost, once it
is ready, and keep on adding more kitchen waste into the earthworm
pit. This way you neither harm the creature nor damage the
environment since you are not using any chemical fertilisers.
Weaving
Magic Carpets
The
TARA Handloom technology has reduced the drudgery of traditional
weavers, especially women, by improvising the conventional loom. The
TARA Loom has upgraded the traditional loom by introducing advanced
features like the flying-shuttle which weaves more cloth with the
same effort. Apart from features like the fly-wheel and steel frame
for higher efficiency, it has introduced a ‘take-up’ mechanism
for semi-automatic operation and a ‘let-off’ mechanism for
automatic tension control. Thus, it has proved to be a technology
which is simple to operate, has a high productivity and gives a
superior quality fabric than the traditional loom.
So,
TARA has achieved a breakthrough in the handloom technology by
inventing a loom that is as efficient as a powerloom and still does
not need any electricity. A new generation weaving machine that
combines versatility with the ease of operation, TARA Loom is
ergonomically designed to conform to the traditional workmanship for
producing more and better quality fabrics. TARA textiles have an
unusually uniform weave and represent the best synthesis of
powerloom and traditional fabrics. Elegant designs by master weavers
in both ethnic and contemporary designs, are now in vogue
everywhere.
Murky
Waters
As
research reveals, 44 millions people are currently affected by water
quality problems. These problems stem either from pollution, or the
prevalence of fluoride, arsenic or iron deposits or the ingress of
saline water.
There
is an urgent need for understanding the gravity of the situation in
terms of water quality and to ensure its appropriate management and
sustainable usage. Currently, there are a number of Delhi schools
involved in a campaign called CLEAN or Community Led Environment
Action Network and are monitoring as well as reporting the quality
of water in the different zones of the Capital.
Development
Alternatives is constantly working towards alternatives which create
a harmony between brother man and mother nature. So, it has designed
kits (under the CLEAN campaign) to monitor the quality of the water
we drink and the air we breathe. These kits indicate whether the
level of pollution is within the prescribed safety limits or not.
Jal
TARA and Pawan TARA are portable kits designed to test water and air
pollution, respectively.
The
Jal TARA kit can test 14 parameters of drinking water and river
water quality to ensure whether the water is fit for consumption or
not. It checks biological pathogens like the Coliform Bacteria,
which spreads water-borne diseases like gastro-enteritis, dysentery
and diarrhoea. Apart from checking physical parameters like the pH
and turbidity, it also checks the presence of chemical hazards like
fluorides, chlorides, residual chlorine, iron, phosphate and
ammonia.
The
Pawan TARA kit is so simple that the quality of air could be checked
even by small kids. It checks three parameters, namely - Respirable
Particulate Matter, Sulphur dioxide and Oxides of nitrogen. This kit
has proved to be more efficient than other brands of commercially
available low volume air sampling kits in the market.
Development
Alternatives provides the after-sale service for both the kits,
apart from the supply of refill chemicals, accessories as well as
training.
Apart
from manufacturing eco-friendly technologies and products, TARA also
provides consultancy services, training and feasibility project
reports. It undertakes turnkey projects of land and
water-management, low cost constructions, renewable energy power
plants and income-generating enterprises.
Electricity
from Biomass
DESI
Power is a TARA affiliate which has been set up to deliver
electricity to far-flung rural communities which are not connected
to the national power grid. The electricity, in this case, is
produced from renewable biomass (like Ipomea) and agricultural
waste. The gasifier turns the biomass into a gas through the process
of pyrolysis and the gas, then, is used to produce electricity in
diesel generators. The cost of electricity generated by this process
is much lower than that produced by diesel generator sets and is
even competitive with the grid supply, if available.
Small
is Possible
If we
adopt even some of these pragmatic technologies and implement them
in our neighbourhood, the world can be a better place to live in.
Our combined micro efforts as citizens could bring about macro
changes in the present scenario. After all, tiny little drops do
make a mighty ocean.
If we
all join hands, we can certainly prove that small is not simply
beautiful but possible as well. q
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