Image: aerial overview photo of the Sha Tin WWTP
To support Hong Kong’s sustainable development, the Government is actively exploring various approaches to develop new land resources. One of those approaches includes the relocation of the Sha Tin Sewage Treatment Works (with a capacity of around 350,000 MLD) to caverns, with a view to releasing the existing site (approximately 28 hectares) for other beneficial uses. Several advanced process technologies are being considered in order to optimize the benefits of the project and in October 2015 the Drainage Services Department signed a contract with a local Contractor, Kingsford Environmental Limited, for carrying out pilot tests for sewage and sludge treatment processes under local conditions. Key objective of this Contract is to obtain information on the treatment performance, limitations, design characteristics and operation & maintenance requirements of pre-selected secondary treatment processes including Nereda technology.