Drainage Services Department

Short-Term Patents for DSD’s Two Foam Removal Robots were Granted by Intellectual Property Department

The DSD is dedicated to providing the world-class wastewater treatment service. Biological foaming might occur during the secondary sewage treatment process, and excess amount of foam would affect the efficiency of sewage treatment.  To assist the operation staff to effectively remove the foam in the bioreactors, the DSD developed an innovative Foam Removal Robot, the first of its kind in the wastewater treatment industry.  To facilitate and promote the development of innovations and technologies in the wastewater treatment industry, the DSD further developed a second generation of the Foam Removal Robot with artificial intelligence.  Short-term patents for both Foam Removal Robots (the first and second generation) were granted by Intellectual Property Department.

Foam Removal Robot (First Generation)

Foam Removal Robot (Second Generation)

The relevant specifications and search reports were published on 18 March 2022 and 6 May 2022 respectively.  To view the documents, please refer to the following links:

Foam Removal Robot (First Generation)

https://esearch.ipd.gov.hk/nis-pos-view/#/pt/details/view/3084366_32022046460.8/0/1/10/0/null_null/KCFeIShhcHBsaWNOdW1iZXI6KDMyMDIyMDQ2NDYwLjgpKSFeISkgQU5EIHB0UmVjb3JkU2VxOjE%3D?lang=en

Certificate of Short-Term Patent - Foam Removal Robot (First Generation)

Foam Removal Robot (Second Generation)

ttps://esearch.ipd.gov.hk/nis-pos-view/#/pt/details/view/3102522_32022048996.9/0/1/10/0/null_null/KCFeISghXiEoaW52ZW50aW9uVGl0bGU6KC8oLipbIF0pPyhbXmEtekEtWl0qKWZvYW0gcmVtb3ZhbChbXmEtekEtWl0qKShbIF0uKik_LykpIV4hIE9SICFeIShpbnZlbnRpb25HcmFudGVkVGl0bGU6KC8oLipbIF0pPyhbXmEtekEtWl0qKWZvYW0gcmVtb3ZhbChbXmEtekEtWl0qKShbIF0uKik_LykpIV4hKSFeISkgQU5EIHB0UmVjb3JkU2VxOjE%3D?lang=en

Certificate of Short-Term Patent - Foam Removal Robot (Second Generation)