Newsletter Vol. 10
Enhancement Works for Kwun Tong Sewage Pumping Station
To cater for future development of East Kowloon, the Drainage Services Department (DSD) is carrying out enhancement works at the Kwun Tong Sewage Pumping Station (KTSPS), which is situated near Kwun Tong Bypass and Wai Yip Street. The enhancement works commenced in late 2017 and are scheduled for completion in end 2022. This newsletter provides the latest information on the progress of construction and related information of the project.
The Director is at the Forefront
Ms. Alice Pang, Director of Drainage Services Department, visited the construction site on the 28th January 2021 to oversee the COVID-19 testing arranged for our workers. During the inspection, Ms. Pang expressed her care to the site workers, reminded the site staff and workers to keep cautious on their health.
We Listern to Your Concern
Our last newsletter briefly shared how we ensure odour from sewage will not affect landscaped deck users. We will now explain how the deodorization system works. The deodorization system mainly treats hydrogen sulfide (H2S), which is the source of odour that gives rotten egg smells.
When sewage are pumped from the Kwun Tong Preliminary Treatment Work through underground pipelines to the balancing tank of the Kwun Tong Sewage Pumping Station, chemicals (such as calcium nitrate) would be added to eliminate the odour through chemical reactions with the H2S. Since our sewage treatment facilities are fully enclosed and covered by the landscaped deck, these layers of physical barriers can also effectively prevent odour from diffusing to the park.
In addition, the gas remained at the balancing tank will be transmitted to the biotrickling filter tank. The microorganisms stored in the biotrickling filter tank will absorb H2S for biodegradation and reduce the concentration of the odour. To ensure the performance of the biotrickling filter, we will regularly supply water and nutrients to maintain a suitable environment for the microorganism to grow.
Lastly, the treated gas will pass through three numbers of activated carbon filters which will absorb the residual H2S and odour. The gas outlet will also be orientated towards the Kwun Tong Bypass such that traffic flow can help dispersing the emission.
After multiple treatments, the discharged gas will have no difference with normal gas. Park users are assured that they will not be irritated while enjoying the park facilities!
Reporting to the District Facilities Management Committee
The Drainage Services Department, the project team and the design team attended the 5th District Facilities Management Committee meeting of the Kwun Tong District Council on 12th November 2020 to update and report the project progress to council members and to obtain their views (such as the theme, layout, play and recreational facilities to be provided etc.) on the project.
Progress of Works
The aerial photo shows the latest general view of the construction site.
|Contractor||China Geo-Engineering Corporation|
|Project Hotline||6466 2466|
|Consultant||Atkins China Limited|