Phu Do Wastewater Collection and Treatment System

Projects

The project involves the construction of a wastewater collection system and Phu Do Wastewater Treatment Plant in the S3 drainage basin (2,485 ha), with a treatment capacity of 84,000 m³/day. The project is implemented under the Public-Private Partnership (PPP) Build-Lease-Transfer (BLT) model, scheduled for 2024–2028. This project represents a major leap in urban wastewater management planning for Hanoi, contributing to the creation of a green symbol for a modern living environment.

General Information

The Phu Do Wastewater Collection System and Treatment Plant project covers the S3 drainage basin with an area of 2,485 ha, located in Cau Giay District, Nam Tu Liem (former), and Bac Tu Liem (former).
Project Name: Construction of the Phu Do Wastewater Collection System and Treatment Plant
Sector: Water supply, wastewater collection and treatment, waste management, urban green space, etc.
Geographical Location:
Wastewater Treatment Plant: Capacity of 84,000 m³/day, occupying approximately 2.5 ha in Tu Liem Ward (according to the new administrative boundaries).
Collection Infrastructure: Covers most of Cau Giay District and part of former Nam Tu Liem District, with a total drainage basin area of 2,485 ha.
Total Investment Capital: Estimated VND 2,274 billion, including:
State capital: VND 913 billion
Investor capital: VND 1,361 billion
Project Scale:
Wastewater treatment plant with 84,000 m³/day capacity
Collection infrastructure: 18 km pipeline network, pipe diameters D300–D1500mm, 2 pumping stations, manholes, and separation wells
Investor Selection Method: Tender for project implementation
Investment Form: Public-Private Partnership (PPP); Contract type: Build-Lease-Transfer (BLT)
Project Proponent: Hanoi Department of Construction
Planned Implementation Schedule: 2024–2028

Location

Key Advantages

1. Strategic Infrastructure Connectivity

The collection system serves a 2,485 ha drainage basin, including the districts of Cau Giay, former Nam Tu Liem, and Bac Tu Liem, effectively addressing stormwater drainage and centralized wastewater treatment, while reducing the load on the existing combined sewer system

2. Green Symbol for a Modern City

The plant presents an image of a “bridge between humans and nature”, bringing the infrastructure closer to residents through green architecture and modern PPP treatment technologies

3. Enhancing Quality of Life and Sustainable Development

Once completed, with a treatment capacity of 84,000 m³/day, the project will improve water quality, reduce flooding, enhance public health, and develop urban landscape. The BLT mechanism ensures long-term, professional operation

Design & Layout

The Phu Do Wastewater Treatment Plant is designed following the concept of “Urban Green Purification”, integrating modern engineering technology with environmental landscape design. The treatment facility is centrally located on a site of approximately 2.5 ha, with pumping stations and a network of D300–D1500mm pipes extending roughly 18 km across the S3 drainage basin. The layout ensures rational allocation among the biological treatment area, collection system, pumping stations, separation wells, manholes, and green spaces. Beyond treatment efficiency, the design emphasizes operational flow, ease of maintenance, and harmony with the surrounding urban environment.