Air & water treatment · controlled release
A controlled-release inorganic silica hydrogel developed by HKUST researchers to target odour and microbial activity in water and drainage environments.
Environmental platform
WISEPURA brings the MOC Hydrogel platform into two focused product families: AquaPura Flush for flushing and drainage infrastructure, and AquaPura Scape for landscape water and decorative water features.
Structural matrix
Held within the gel
Released over time
Functional agents are held inside a porous, three-dimensional silica network.
The hydrogel carrier is positioned in the target water or drainage environment.
Active agents diffuse gradually instead of being discharged all at once.
Odour-producing microbes and compounds are addressed closer to their source.
Choose the application route that matches the water environment and operating challenge.
Controlled-release treatment for drainage, wastewater and flushing-water systems, positioned close to the source of odour and microbial activity.
Hydrogel-based water care for algae, odour and microbial control in ornamental and landscape water environments.
Peer-reviewed field study · 2025
In the published study's tested conditions, 400 g of hydrogel treated about 50,000 m³ of stormwater over 28 days.
Read the paper record ↗Product routes
Controlled-release hydrogel adapted for built-water systems and landscape-water environments.
Built-water systems
Controlled-release hydrogel for drainage and flushing-water environments, designed to place functional agents closer to the source of odour and microbial activity.
Landscape water
A site-planned hydrogel route for ornamental and landscape water, supporting ongoing control alongside the facility's existing operating system.
MOC Hydrogel · case studies
Selected drainage, flushing-water and landscape-water applications in real operating environments.
Government drainage
MOC Hydrogel was developed for demanding drainage environments where repeated manual dosing is impractical. The controlled-release material is placed closer to the source of hydrogen sulphide and odour-producing microbial activity.
This supplied laboratory video introduces APEL's working environment, formulation handling and technical team—the development foundation behind WISEPURA's controlled-release applications in water and drainage systems.
Public housing
A controlled-release hydrogel formulation was trialled in building flushing-water tanks to extend water hygiene into residential infrastructure and address microbial risks beyond surface cleaning.
Healthcare
APEL field references identify flushing-water tanks and drainage outlets as relevant placement points for hydrogel-based odour and microbial control in hospitals and care facilities.
Commercial building
A commercial-building application showing how hydrogel-based treatment can be integrated with existing tanks and water-system maintenance planning.
Residential development
AquaPura Scape applies the hydrogel platform to ornamental and landscape water, supporting control of algae, odour and microbial activity alongside the site's existing treatment system.
Clubhouse and amenity
A field reference for controlled-release care in a decorative water environment, designed around the water feature's operating and maintenance conditions.
Results and claims are specific to the product, formulation, site conditions and cited evaluation. Client identities may be withheld where confidentiality applies.
B2B projects & services
