THE DEPARTMENT of Science and Technology (DOST) Davao Region earned top recognition in the 2024 Search for Project Implementation and Monitoring Excellence, or DavPrIME, after its Vertical Helophyte Filter System (VHFS) for the Ma-a Slaughterhouse in Davao City was named Best Government Infrastructure Project by the Regional Development Council XI.
The VHFS was selected for offering an innovative and cost-effective solution to wastewater treatment, an area where many local facilities struggle due to the high costs of conventional systems.
The VHFS is a nature-based technology developed by DOST Davao under its Wastewater Treatment System Upgrading Program. Instead of relying on expensive mechanical equipment, the system uses helophyte plants such as reeds and carabao grass to naturally filter wastewater from the slaughterhouse. The City Government of Davao provided a 600-square-meter site within the Ma-a Slaughterhouse compound and worked closely with DOST Davao throughout installation and early operation.
The project impressed evaluators for its cost efficiency. Traditional wastewater treatment systems for similar facilities can cost around P30 million, while the VHFS required only about P1.7 million to construct. The design also minimizes maintenance expenses and reduces electricity requirements, making it a practical choice for public facilities and small communities.
The Ma-a Slaughterhouse, recognizing the need to comply with environmental standards, requested the assistance of DOST Davao to develop a system suited for their operations. Following construction, the slaughterhouse and the City government committed to operating and maintaining the facility, ensuring that the technology continues to support water quality improvement in the area.
The project was also recognized for its strong monitoring and follow-through. DOST Davao conducted regular field visits, water sampling, and technical support sessions to ensure the system functioned properly. Through continuous adjustments and maintenance, the VHFS consistently met wastewater quality standards and demonstrated long-term viability.
DOST Davao regional director Dr. Anthony C. Sales described the recognition as proof that science-driven solutions can be both practical and impactful.
“The Vertical Helophyte Filter System shows that innovation can be accessible. With local materials and smart design, we helped address a long-standing environmental concern in a way that is affordable and sustainable. This award validates the importance of developing technologies that communities can actually use,” he said.
The VHFS at Ma-a Slaughterhouse is one of several installations constructed by DOST Davao as part of its broader effort to promote low-cost and sustainable wastewater solutions in the region. The DavPrIME award strengthens the model’s potential for replication across more local government units and public facilities seeking reliable and environmentally friendly treatment systems.
