|
Modern India is facing a severe drinking water
crisis in terms of both quantity and quality.
 |
Despite
massive state interventions the situation today remains dismal. People
in several parts of India face an immense challenge to meet the basic
needs of water. The crisis is not due to the lack of fresh water as
such, but the unavailability of adequate quality water.
Jal-TARA a name commonly used to detect the quality of water is also
catering to the needs of water quality management. Jal-TARA
Slow Sand Filter provides a solution for the bacterial
contamination in water. |
What
is Jal-TARA Slow Sand Filter?
Common water purification
systems comprise of chlorination, coagulation and sand filtration techniques. Of
all these techniques, sand filtration offers a chemical- free, reliable and
economical treatment. Jal-TARA Slow Sand Filter is designed to treat drinking
water using slow sand filtration technique as per the specifications of World
Health Organisation (WHO). Jal-TARA filter is a biological filter merged with
advanced technique of fabric protection to improve and simplify the traditional
process of slow sand filtration. Two type of filtration act together to improve
the quality of water: It consists of a gravel filter to remove turbidity, and
sand bed filters to completely remove pathogenic bacteria from raw water.
What
can Jal-TARA Slow Sand Filter do?
The system is capable of
treating the following parameters:
Removal of turbidity of value
greater than 30 NTU to lesser than 10 NTU.
Removal of coliform bacteria of varying between 25-100 MPN per 100 ml
to nil.
Reduces excessive Iron to permissible limit of 0.3 mg /l.
Apart from this the system also improves the taste of the water and the
odour removal.
Advantages of Jal-TARA Slow
Sand Filter?
- A community level water treatment
system and can provide 2000-3000 litres of safe water per day. House hold
version coming soon.
- Requires neither chemicals nor
electricity to run, so may be installed in any site in rural, urban,
semi-urban and remote areas
- It is cost effective.
- Maintenance on yearly basis only.
- Filter can be maintained by the
members of the community thus creating livelihood options.
- Purifies raw water from various
sources as surface water, ground water and municipal supply water.
- Simple to install and operate.
- Very durable with life of 15 years.
- Filter can be easily assembled locally
available material like sand, pebbles and water tank. However, fitting
material can be easily transported, if not available locally.
After extensive field testing of the system, many Jal-TARA Slow Sand
Filters have been installed in various parts of India and providing safe water
to diverse places such as schools, temples, villages and offices.
For more information contact:
TARA Environment Monitoring
Facility
B- 32 Qutab Institutional Area,
New Delhi – 110 016
Phone
: 91-11-26134103, 26890380
Fax : 91-11-26130817
Email:
temf@devalt.org
|
