Case Study | Chem-Aqua | Asian Mall Chain Achieves 0.58MTon CO2 Reduction with Sustainable Cooling Water Treatment

A leading multi-location mall brand in Southeast Asia has significantly reduced its carbon footprint by 0.58MTon CO2 through an innovative sustainable cooling water treatment program. Confronted with challenges such as scale buildup, corrosion, microbiological deposits, and biofouling in its cooling water systems utilizing deep well water, the brand turned to NCH Asia Pacific for a solution that would enhance sustainability while addressing energy consumption, descaling issues, chemical usage, and environmental impact across its diverse sites.

Implemented under the Chem Aqua water treatment program, the initiative included a comprehensive strategy:

• Initial descaling and cleaning to prepare the systems
• Installation of an automated feed/bleed system to optimize Concentration of Cycles (CoC)
• Management of scaling and corrosion through targeted interventions
• Rigorous microbiological control measures to maintain hygienic conditions
• Reduction and maintenance of approach temperatures to improve energy efficiency

These efforts delivered substantial environmental and operational benefits:

• Consistently lower approach temperatures, enhancing energy efficiency
• Effective removal of hard deposits, reducing the need for descaling treatments
• Improved water flow and distribution efficiency
• Reliable microbiological control, ensuring sustained hygiene standards
• Optimization of chemical dosages and CoC levels for cost-effective operations
• Enhanced safety and convenience in chemical handling and storage

Through these measures, the mall chain not only achieved a noteworthy reduction in its carbon footprint but also bolstered operational efficiency and environmental stewardship across its multiple locations in Southeast Asia.