Re ECF Project: ECF 2016-108

Project Title: A biological approach to the H2S malodor problem

Applicant: Dr. HAN Wei, Division of Environment, The Hong Kong University of Science and Technology

Total Approved Grant: $498,000

Duration: 20/4/2017 to 19/10/2018

Project Status/Remarks: On-going

Hydrogen sulfide, a highly toxic product from anaerobic decomposition of organic wastes containing sulfur, exists generally in sewage systems and sewage treatment works. It is one of the major causes of malodor complaints, and results in serious air pollution and health risk. This project aims to develop a cost-effective biological approach to prevent the formation of hydrogen sulfide in sewage systems and sewage treatment works by utilizing bacteriophages isolated and enriched from wastewater / sludge samples to kill and lyse sulfate-reducing bacteria. This project will develop new functional nanomaterials with electrostatic adsorption, physical capture and chemical bonding capabilities for highly effective isolation and enrichment of bacteriophages specific to sulfate-reducing bacteria from wastewater / sludge samples, and establish standard operational procedures of bacteriophage-based malodor inhibition method for practical applications.

Summary of the Findings/Outcomes:
To be available upon completion of the project