Drainage Services Department

Two representatives from the Drainage Services Department (DSD) won the "HKIE Outstanding Paper Award for Young Engineers/Researchers 2024"

The representatives from the Drainage Services Department, Ir MUI Chi-kin (Harbour Area Treatment Scheme Division), and Ir CHAN Pui-ching (Electrical & Mechanical Projects Division), both won the "HKIE Outstanding Paper Award for Young Engineers/Researchers 2024" on 13 September 2024. The awards were presented to inspire young engineers and researchers aged 35 and below from around the world to create innovations and technologies, share their accomplishments, and promote the engineering profession among the younger generation. The titles of the paper awards are as follows:

Harbour Area Treatment Scheme Division
Application of "Single Site, Multiple Use" in Sewerage Project – A Breakthrough trial in Kwun Tong Sewage Pumping Station

Well known for its high population density, Hong Kong's land resources are undoubtedly precious. At the same time, sewerage facilities are of paramount importance to ensuring public hygiene and preserving receiving water. Due to limited land resources, it is sometimes inevitable to locate these facilities in close proximity to residential areas. Consequently, objections from neighbouring residents, stemming from the "Not-In-My-Backyard" effects, are frequently received due to concerns regarding potential negative impacts on visual aesthetics and odours. To address this challenge, a breakthrough project - Enhancement Works for Kwun Tong Sewage Pumping Station was implemented, applying an innovative approach known as the "Single Site, Multiple Use" concept. This involves constructing a landscaped deck to cover the sewerage facilities, effectively reducing visual and odour impacts in the surrounding area. This pioneering project not only enhances the image of an otherwise visually dull sewerage infrastructure but also improves the quality of life for local residents. Due to the iconic and innovative design of the deck, numerous positive feedback has been received from visitors. This project certainly serves as a catalyst for engineers to go the extra mile in building a better community.

Electrical and Mechanical Projects Division
Environmental Awareness in Machines: A Case Study of Automated Debris Removal using Generative Artificial Intelligence and Vision Language Models

In recent years, the development of artificial intelligence technology has become increasingly mature, the Drainage Services Department has actively applied technology to enhance its service. Water channels play a crucial role in stormwater management, but the build-up of debris in their grilles can lead to flooding, endangering humans and animals, properties and critical infrastructure nearby. While automated mechanical grab systems are necessary for efficient debris removal, their deployment in public environments has been uncommon due to safety concerns. The awarded paper reported the successful use of Generative Artificial Intelligence (GAI) and Vision Language Model (VLM) to endow an automated mechanical grab with "awareness", which allows it to differentiate between non-living and living objects and decide whether to initiate or abort grabbing actions. This opens up possibilities for the application of GAI/VLM in automation sectors where human-machine mingling occurs. This innovative technology not only improves cleaning efficiency but also reduces the need for human labor and increases safety, which is crucial for protecting the environment and maintaining the cleanliness of the waterways.

Ir Eric MA Siu-cheung, the President of The Hong Kong Institution of Engineers, presenting the prize to the representative of Harbour Area Treatment Scheme Division, Ir MUI Chi-kin

Ir Eric MA Siu-cheung, the President of The Hong Kong Institution of Engineers, presenting the prize to the representative of Electrical & Mechanical Project Division, Ir CHAN Pui-ching

Permanent Secretary for Development (Works), Ir Ricky LAU Chun-kit, JP (eighth from left), The Director of Drainage Services, Ir Ringo MOK Wing-cheong, JP (eighth from right) and the awarded team