Establishment of the floating garden: a phytoremediation scheme for polluted waterways in urban areas is another technology being promoted/disseminated by the ERDB-THWRDEC from 2018 to present. Said technology is considered as a more economical and an alternative or complementary technology in removing contaminants from the matrix of the pollutants in waterways/rivers. It is an option to ease waterways with pollutants like heavy metals and excessive nutrients. Moreover, the technology does not only remove toxic and hazardous pollutants from the target waterway but can also enhance the aesthetic view and increase the biodiversity in the vicinity.
Barangay Pulanglupa Uno, Las Piñas City was the first adopter of the said technology in NCR. On July 12, 2019, a Memorandum of Agreement (MOA) was forged between the said adopter and the ERDB-THWRDEC to have a clear delineation of responsibilities towards the establishment of the Floating Garden Project. Construction of bamboo rafts made of used PET bottles and its deployment along Dalig Creek in Casimiro Townhomes, Barangay Pulanglupa Uno was made possible after a couple of weeks. To date, 10 units of floating gardens with different plant species such as pennywort, bandera española, dieffenbachia, and vetiver grass known to absorb heavy metals have been set–up. Regular maintenance of the floating gardens is being undertaken by the Barangay. On the other hand, monitoring and provision of technical assistance are still being continued by the ERDB-THWRDEC staff.
Amidst the covid pandemic, the establishment of Floating Garden Project is still on board with the target technology adopters this CY 2021. It is now considered as a very challenging THWRDEC’s project since it needs a hands-on management. Thus, the power of strong linkage and cooperation with the technology adopters should be capitalized. In the end, success of the implementation of the Floating Garden Project could be realized. — Evangeline R. Marcelino, Supvg. SRS/Ma. Salvacion P. Samson. Sr. SRS