Water is the genesis of life and no activity of any sort can take place without water. Today, the importance of water is being realised as India too is becoming water stressed with water becoming scarce. It is a critical resource shaping the future of India’s chemical industry. Total Water Management (TWM) must be central to every operation, ensuring efficiency, circularity and sustainability. With smart technologies, reuse strategies and cross-sector collaboration, the industry can lead a water-wise transformation, turning scarcity into opportunity.
When it comes to water, we find ourselves confronting a paradox: India—home to a rich network of rivers, lakes and monsoons is becoming a water-stressed nation. Once considered abundant and free-flowing, water is now an increasingly scarce and regulated resource, even in a very rain fed country like India with lots of lakes and rivers. The chemical sector, by its very nature, is one of the largest consumers of water. From hydrocarbons to all downstream chemicals, every sub-sector within the industry is critically dependent on water—not just in terms of volume, but also in the specific quality and purity required.
Total Water Management
Therefore, Total Water Management is now a must-have, a non-negotiable strategy that must be embedded across every process, every plant design, every operational SOP. It demands a radical rethinking of how we source, use, treat, recycle and discharge water within our industrial ecosystems. And in India, where climate unpredictability, groundwater depletion and competing demands from agriculture and domestic consumption are rising, the chemical industry must take proactive measures in this transformation.
Water and Chemical Industry
In chemical industry, water is a raw material, a reaction medium, a cleaning agent, a coolant and a carrier of waste. Different segments of the industry have drastically different purity requirements. In the pharmaceutical and biotech industries for instance, ultra-pure water is indispensable for compliance with GMP and regulatory mandates. In contrast, other sectors may use water for reactors and other process equipment as well as for large-scale cooling towers or boiler feed operations, requiring softer and relatively lesser purity standards. But regardless of use-case, one reality is universal: the pressure to ensure total efficiency of water use with zero wastage.
Technologies for Water use and Reuse
Fortunately, the industry has many options. Today, a suite of mature and emerging technologies makes it possible to reimagine the water lifecycle—from source to sink to source again.
There are Physical, Chemical and biological treatment technologies such as multiple treatment stages—from sedimentation, filtration and softening to advanced oxidation processes (AOPs), membrane filtration (like RO/UF/NF) and anaerobic digesters—are already mainstream. Innovations in green chemistry-based additives and non-chemical treatment systems are allowing plants to clean water with minimal ecological impact. Technologies that enable resource recovery (nutrients, salts, solvents) from effluents are seeing increased adoption.
There are many techniques for recovering up to 90–95% of the water for reuse in utilities, non-contact processes and even product streams. Segregation of wastewater at the source and modular reuse plants are helping industries transition towards a closed-loop water economy.
Then in coastal installations desalination represents a viable long-term alternative. Modern RO-based desalination plants are increasingly energy-efficient and with renewable energy integration, their sustainability quotient improves further.
In the era of Industry 4.0, digitalization is playing a catalytic role in water management. Smart sensors, real-time analytics and IoT-enabled infrastructure are allowing industries to continuously monitor water quality, flow rates, leakages and consumption patterns. AI-driven platforms can now predict fouling, optimize chemical dosing and even orchestrate multi-point reuse strategies across plants.
Move it to Top Management
Total Water Management must move from being a departmental activity to a boardroom priority. Equally important is the role of inter-sectoral collaboration between government, industry, academia and technology providers.
We need to mainstream water stewardship into every new industrial township, every brownfield expansion, every new product line. Incentives such as tax benefits for recycling infrastructure, faster clearances for zero-liquid discharge plants, and PLI-style schemes for water-positive technologies could turbocharge adoption.
Water – The New Oil
In a warming world, water is the new oil—finite, fight-worthy, and foundational. We must treat every drop as a resource, not a byproduct. TWM is not just about reducing consumption, it’s about reinventing the water narrative in industrial India—from scarcity to circularity.
To the chemical industry, we say: waste not, want not. From hydrocarbons to fine chemicals, from fertilizers to APIs, let water wisdom become a core metric of our operational excellence and sustainability commitment.
Let us set the benchmark—not just for India, but for the world.
– Vinoo Mathews
