BEWG Yuhang Wastewater Treatment Plant Selected as One of Hangzhou’s Top 10 Low-Carbon Application Scenarios for 2026 2026-08-17
Recently, the Development and Reform Commission of Hangzhou unveiled the selection results of the 2026 "Top 10 Low-Carbon Application Scenarios in Hangzhou". The "Multi-dimensional Carbon Reduction Demonstration Scenario" of the Phase IV project of BEWG Yuhang Wastewater Treatment Plant was successfully selected for the list.
This latest honor marks another major recognition of the project’s achievements in low-carbon development, following a string of authoritative accolades. These include the title of "First Batch of Green and Low-Carbon Benchmark Wastewater Treatment Plants" awarded by the National Development and Reform Commission and the Ministry of Housing and Urban-Rural Development, the E20 "Leader" Benchmark Water Plant, the "Ecological and Environmental Protection Demonstration Project" issued by the China Association of Environmental Protection Industry, and the "Green and Low-Carbon Development Case" recognized by the All-China Environment Service Chamber of Commerce. Furthermore, the project serves as a replicable and referable model for the ecological and low-carbon transformation of wastewater treatment facilities in high-density urban areas.
The Phase IV project of Yuhang Wastewater Treatment Plant has pioneered a multi-dimensional carbon reduction system featuring coordinated efforts in process-based carbon reduction, resource recycling, clean energy utilization and biological carbon sequestration. It achieves a comprehensive annual carbon emission reduction of nearly 30,000 tons, delivering outstanding full-cycle low-carbon benefits. Adopting a fully underground construction mode of "underground plant construction plus overground park landscape", the project builds a 150,000 cubic meters per day wastewater treatment facility underground and develops the Yushang Ecological Park on the ground. This innovative model requires no new land occupation, transforming the traditional NIMBY (Not In My Backyard) wastewater plant into a popular urban ecological space welcomed by local residents.
Breaking the governance boundary of a single plant area, the project promotes systematic engineering initiatives including pipeline quality upgrading, river ecological restoration and regional water flow regulation. Every year, it supplies nearly 50 million cubic meters of high-quality reclaimed water to the Yuhangtang River as ecological water replenishment, upgrading the water quality of two provincial monitoring sections in the downstream from inferior Class V to Class III.
Different from large-scale and high-intensity external river regulation projects, this project focuses on improving in-plant water quality and restoring natural river courses. It drastically cuts massive implicit carbon emissions generated from building material exploitation and large-scale mechanical construction, blazing a new path for collaborative watershed water governance with low disturbance, low cost and low carbon emissions.
In terms of energy structure optimization, the project integrates three major green systems: photovoltaic power generation, sewage source heat pump combined cooling and heating supply, and biological carbon sequestration by overground green spaces. This transformation turns the traditional energy-consuming wastewater plant into a low-carbon complex that realizes dual benefits of clean energy production and natural carbon sinks.
Covering an area of 52,000 square meters, Yushang Ecological Park fully adopts purified reclaimed water for irrigation and landscape water use. It completely eliminates the negative NIMBY impact of urban environmental facilities and achieves nearly 800 tons of carbon dioxide biological sequestration annually, realizing the organic integration of industrial water treatment facilities and urban living ecology.
Relying on BEWG’s intelligent operation and maintenance platform, the project realizes automatic and precise regulation of the entire treatment process, including aeration, reagent dosing and sludge reflux. Supported by a water quality mechanism model, it achieves advanced water quality early warning and process simulation, effectively solving the long-standing industry pain points of high reagent and power consumption in wastewater treatment.
Actual operational monitoring data shows that the project’s power consumption per ton of water is about 30% lower than that of similar underground wastewater plants in the industry. The land occupation per ton of water in the production area is only 0.1718 square meters, saving 84.4% of land resources compared with national standards. Digital and refined operation effectively reduces resource and energy consumption.
Honors record the phased achievements of the project, while its most tangible results are reflected in the clear waters of the Yuhangtang River and the lush vegetation of Yushang Ecological Park. BEWG will continue to explore innovative low-carbon development paths. With technology as the core driver and ecology as the fundamental foundation, the company will fully release the multiple values of carbon emission reduction and resource recycling, contributing to the sustainable green development of Hangzhou.
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