Pelwatte Dairy commissions Sri Lanka’s largest dairy effluent treatment plant

• Aims to advance ESG leadership and global market readiness

Pelwatte Dairy Industries Limited has commissioned its state-of-the-art Effluent Treatment Plant (ETP) at its Buttala manufacturing facility, marking a significant milestone in the company’s journey toward environmental stewardship, ESG compliance, and responsible dairy processing.

Pelwatte Dairy claims the facility is the largest Effluent Treatment Plant within a dairy processing operation in Sri Lanka,.

As Pelwatte Dairy continues to scale its processing capacity and expand its export footprint, environmental compliance has become a central pillar of sustainable growth.

The ETP has been designed to meet the increasingly stringent environmental expectations of Western, European, and Far Eastern markets, where compliance with wastewater discharge standards, environmental reporting, and sustainability practices are essential for market access.

The facility has a base treatment capacity of 250 m³ per day, with the engineered capability to handle peak volumes of up to 325 m³, representing approximately 30 percent additional capacity to accommodate future growth in processing volumes.

“This future-ready design ensures that Pelwatte Dairy can maintain consistent environmental performance even under high production scenarios, reinforcing the company’s commitment to long-term compliance, operational resilience, and responsible expansion,” Pelwatte Dairy said.

The ETP integrates advanced treatment technologies, including: Integrated Dissolved Air Flotation (IDAF), Anaerobic and Enhanced Sequential Batch Reactor (AnSBR/eSBR) systems, Dedicated CIP wastewater management, Real-time automated process monitoring, and Screw press sludge dewatering

The plant is fully aligned with Sri Lanka’s stringent Central Environmental Authority (CEA) discharge standards and supports adherence to ISO 14001 Environmental Management System (EMS) practices, reinforcing Pelwatte Dairy’s structured approach to environmental management and continuous improvement.

The inauguration ceremony was attended by representatives from the Board of Investment (BOI) Environmental Division and Central Environmental Authority (CEA) provincial and district offices.