SWTP for Supporting Water Supply at Bakkhali, Cox's Bazar City

The Surface Water Treatment Plant (SWTP) for Supporting Water Supply at Bakkhali, Cox's Bazar City is an important water infrastructure project developed to strengthen the supply of treated water for Cox's Bazar Municipality and surrounding areas.

Implemented under the Emergency Assistance Project (EAP), the project was undertaken by the Department of Public Health Engineering (DPHE) with financial support from the Asian Development Bank (ADB) under Grant No. 0582. The project was constructed through the AWCL-Green Dot Limited Joint Venture, contributing to the development of essential water supply infrastructure in one of Bangladesh's most strategically important and rapidly growing urban areas.

Large-Scale Surface Water Treatment Capacity

The project includes a Surface Water Treatment Plant with a capacity of 1,000 m³ per hour, providing significant water treatment capacity to support the growing water demand of Cox's Bazar Municipality.

The plant uses water collected from the Bakkhali River as its primary source. A dedicated pontoon-based water intake system has been developed to collect raw surface water and transfer it to the treatment facility.

By utilizing a surface water source and integrating an appropriate intake and treatment system, the project provides an important alternative to groundwater-based water supply solutions.

Rapid Sand Filtration System

The treatment process incorporates a Rapid Sand Filtration System, designed as a key component of the overall surface water treatment process.

Raw water collected from the Bakkhali River is transferred through the water intake and treatment infrastructure, where the filtration system supports the removal of suspended particles and other impurities as part of the treatment process.

The 1,000 m³/h capacity treatment plant and its associated filtration infrastructure provide a substantial water treatment solution to support municipal water supply requirements.

Supporting Cox's Bazar Municipality

The primary coverage area of the project is the Municipality area of Cox's Bazar, where increasing population and water demand require sustainable and reliable water supply infrastructure.

The SWTP contributes to strengthening the municipal water supply system by creating additional capacity for the treatment of surface water. The project supports the broader objective of improving access to treated water for urban communities and surrounding areas.

Integrated Water Infrastructure

The project combines several critical components of a modern surface water supply system, including:

• Surface water collection from the Bakkhali River

• Pontoon-based water intake infrastructure

• Large-capacity surface water treatment facilities

• Rapid Sand Filtration System

• Municipal water supply support infrastructure

Together, these components form an integrated system designed to collect, treat and support the distribution of water to the Cox's Bazar Municipality area.

Commitment to Sustainable Water Infrastructure

Reliable access to safe and treated water is essential for public health, urban development and long-term community resilience. The SWTP for Supporting Water Supply at Bakkhali, Cox's Bazar City demonstrates the importance of modern engineering and large-scale water treatment infrastructure in responding to increasing urban water demand.

Zi Group is proud to be associated with infrastructure projects that support sustainable water supply and community development. Through our expertise across water treatment, environmental infrastructure, engineering and integrated project solutions, Zi Group remains committed to contributing to a cleaner, healthier and more sustainable Bangladesh.