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Greenfection

Making every drop count

By 2025, an estimated 1.8 billion people will live in areas plagued by water scarcity

One third of human population is without adequate sanitation facilities

In India, 600 million suffering high to extreme water shortages

21 major Indian cities facing zero groundwater situation by 2020

For every 1,000 children born, 31 die before the age 5 thanks to contaminated water use

Over 579 million drink contaminated water: 841 million are without basic water access

The water crisis is a resolvable one and access to water and sanitation is a UN recognised human right. It is established that investing in clean water and basic sanitation is one of the most effective ways to enhance socio-economic development and fight extreme poverty.

The United Nations observes March 22 as World Water Day and Sustainable Development Goal 6 of the 2030 Agenda for Sustainable Development aims to guarantee sustainable management of, and access to, water and sanitation for all by 2030.

Tata Steel discourages the use of groundwater and has developed other water resources for industrial as well as human use within its operations.

Tata Steel wants to beat the industry benchmark by achieving specific water consumption of less than 3 m3/tcs by 2025.

A new 8 MGD (2 x 4 MGD) Effluent Treatment Plant is being set up in two phases at the Jamshedpur Steel Works to convert effluents into service quality water for use in cooling and quenching.

Tata Steel wants to beat the industry benchmark by achieving specific water consumption of less than 3 m3/tcs by 2025.

A tertiary treatment plant at Bara Sewage Plant has been commissioned to treat sewage water for reuse in Tata Steel Works. The project, first of its kind in the country, has been recognised as the 'Industry Water Project of the Year' at the Global Water Intelligence Awards held recently at London. The project will reduce Tata Steel Jamshedpur Plant’s freshwater intake from Subarnrekha River.

Tata Steel Rural Development Society has installed lift irrigation systems and rainwater harvesting structures to address water conservation in rural and peri-urban areas.

Some lakes in Jamshedpur, including Jubilee Lake, Beldih Lake, Neel Sarovar, and Bara Lake, store rainwater through stormwater drains. This water is used for watering parks, golf courses, sports complexes and for industrial purposes.

Creating a sustainable environment for tomorrow

PROBLEM

Depletion of groundwater table in the Noamundi mine area and reliance on seasonal rain.

PROJECT DETAILS

Annual rainfall (in mm):
Ranges from 1064 mm to 1278 mm

Intensity of rainfall (mm per hour):
10 mm -76 mm / per hour

Rainwater Harvesting Potential:
5.8 million m3 per annum

Total catchment area (in sq m): 11600000 sqm

Run-off Co-efficient: 0.5

SOLUTION

Given the potential rainfall in the area and possibility of rainwater harvesting, a solution based on rainwater harvesting was found. The stored and recharged rainwater is used for both high-end and low-end purposes, washing iron ore, dust suppression, gardening, car washing and for drinking purposes after due treatment. The run-off water is primarily used for recharging the depleting aquifers of the mine area and surrounding areas. Part quantity of run-off water is used for surface storage.

IMPACT

By implementing the Rainwater Harvesting reduced withdrawal of scarce water from the river source by 22.7%. The depletion of the groundwater table in the mine and downstream areas will be arrested gradually. The yield of water from the recovery wells has increased and become sustainable.