Tata Steel’s operations have set global benchmarks by incorporating best available technologies to ensure efficient waste management through waste utilisation processes, effluent water treatment and emission abatement. The Company focuses on the entire lifecycle of the product from mining to end use efficiency and disposal through resource efficiency, waste utilization, energy efficiency, mitigation of Climate Change and eco efficient products and services.

Solid Waste Utilisation

Mill Scale and Sludge De-Oiling facility to enhance Waste Utilisation in Sinter PlantMill Scale and Sludge De-Oiling facility to enhance
Waste Utilisation in Sinter Plant
Coal mine wastes, iron ore fines and by-products from the plant including Blast Furnace and LD Slag, all wastes have potential for value added applications. To recover these values and efficiently utilise the wastes, Tata Steel uses advanced technology.

Some of the Solid Waste Utilisation initiatives are -

  • Sending hazardous wastes to secured landfills and treatment, storage and disposal facilities (TSDF). Incinerator for disposal of hazardous waste
  • Modern WRP for processing of LD Slag
  • Slag granulation/ drying facility for BF Slag
  • Reclamation facility for used oil
  • Waste oil injection in blast furnace
  • Collection and recycling of the dust from ESPs and bag filters
  • Coal tar injection in the blast furnace
  • Pursuing collaborative initiatives with other industrial sectors and agencies to enhance utilisation of wastes

Some of the achievements in Solid Waste Utilisation -

  • Around 10.5 kT Slag has been used to make Paver blocks in the Steel Works and Leasehold Area (Township)
  • Jharkhand Government has allowed the use of LD Slag for constructing rural roads under Pradhan Mantri Gram Sadam Yojana
  • Trials underway at Jharia underground coal mines to replace sand with LD Slag
  • A Compost Plant for municipal waste has been set up in Jamshedpur. The low grade manure and soil conditioner obtained from the Plant is being used in agriculture and horticulture.
  • The Company imbibed the technology of using plastic waste in roads under Dr. R Vasudevan Thiagarajar College of Engineering, Madurai. Plastic roads have been a boon for Jamshedpur's hot and extremely humid climate.

By 2020 Tata Steel intends to achieve 100 per cent Solid Waste utilisation at its Jamshedpur Steel Works through the principle of - reduce, reuse and recycling of waste.

Emission Abatement

Reduction of CO2 intensity and overall emission abatement is a corporate-level key performance indicator for Tata Steel. The company actively pursues the strategy of using best available technologies and continuously improving the efficiency of its operations to reduce the overall carbon rate. It invests its best efforts to mitigate GHG emissions through the supply of energy-efficient steel. In keeping with its views of environment sustainability, Tata steel monitors the dust and other emission levels and takes prompt corrective actions to ensure these stay within the permissible limits.

Some of these initiatives are:

  • The company has made large capital investment in Air Pollution Control Equipment for its new and existing plants to significantly reduce dust and CO2 levels.
  • Tata Steel installed Top Gas Recovery Turbine at the new Blast Furnace, Coke Dry Quenching in coke oven batteries, Variable Frequency Drives for Fan Motors, reduction in plant idling and Level-III automation.
  • Tata Steel commissions local suppliers for its supplies. This reduces the transportation distance and results in a reduction of CO2 emission per trip.
  • Tata Steel supplies carbon friendly steel products to its customers to reduce their carbon footprint.

Effluents Management

Tata Steel’s long-term plan is to reduce its water consumption and makeup for the water consumed at its plants by completely eliminating effluent discharge. Some of its Effluents Management initiatives include

  • Installation of a new 8 MGD (2 x 4 MGD) Effluent Treatment Plant at Jamshedpur Steel Works under the 'Zero Effluent Discharge' project. Through this plant Tata Steel aims to significantly reduce water consumption of the Steel Works by converting effluents into service quality water for use in cooling and quenching.
  • Water is recovered from the drains and recycled for low-end applications such as slag quenching, dust suppression etc.
  • The latest BOT plant at Jamshedpur Steel Works has the capacity to treat 115 m3/hour of effluent from the Coke Plant.