Surface Water Based Piped Water Systems at Unchiprang, Cox's Bazar

The Surface Water Based Piped Water Systems at Unchiprang, Teknaf, Cox's Bazar project was developed to provide a reliable and sustainable water supply solution in an area where access to safe water is critically important.

Implemented under the Emergency Assistance Project (EAP), this project established multiple surface water-based treatment and piped distribution systems designed to collect, treat and deliver water to the communities within the project area. The project was implemented for the Department of Public Health Engineering (DPHE), Cox's Bazar, with financial support from the Asian Development Bank (ADB) under Grant No. G0592-BAN.

Advanced Surface Water Treatment Infrastructure

The project consists of three water treatment facilities with capacities of 100 m³ × 2 units and 30 m³ × 1 unit. Together, these facilities provide a distributed approach to water treatment and supply, supporting water availability across the Unchiprang area.

The systems use Ultra Filtration (UF)-based treatment technology, providing an advanced filtration process for treating water collected from the designated surface water source.

The primary source of water for the project is lake water, which is collected and processed through the treatment systems before being supplied through the piped water network.

Mini Piped Water Distribution Network

A mini piped water network was developed as the project's primary distribution system, allowing treated water to be transmitted and distributed across the coverage area.

The transmission infrastructure includes approximately 8,500 meters of 315 mm HDPE pipeline, providing the main route for transferring treated water from the treatment facilities.

The distribution network includes approximately 8,900 meters of pipelines in 110 mm, 75 mm and 40 mm diameters, helping extend water supply services to different points within the project area.

Together, the transmission and distribution pipeline infrastructure forms an integrated water supply network designed to support reliable access to treated water.

Reliable and Sustainable Power Solutions

The project incorporates multiple power systems to support continuous operation across the different treatment facilities.

The 100 m³ × 2 water treatment systems are supported by REB power and generator backup, helping maintain operational continuity.

The 30 m³ × 1 water treatment system is powered by solar energy, incorporating a renewable energy solution into the project's water supply infrastructure. This combination of grid power, backup generation and solar power demonstrates a flexible approach to operating water treatment systems in challenging environments.

Supporting Sustainable Water Access

The project represents an important investment in sustainable water infrastructure in Teknaf Upazila under Cox's Bazar District. By combining lake water collection, Ultra Filtration-based treatment, HDPE transmission pipelines, mini piped distribution networks and diversified power systems, the project provides an integrated solution to local water supply requirements.

The Surface Water Based Piped Water Systems at Unchiprang demonstrates how appropriate treatment technologies and carefully designed distribution infrastructure can help improve access to safe and reliable water.

Zi Group is proud to be associated with projects that contribute to sustainable water supply, environmental protection and improved quality of life. Through integrated engineering expertise and innovative infrastructure solutions, Zi Group remains committed to supporting safe water access and sustainable development across Bangladesh.