WASTEWATER TREATMENT WITH VERMI-FILTRATION
OUR WORLD TODAY has two major water crises - the lack of clean water for drinking and the pollution of water bodies (seas, rivers and lakes) with domestic, agricultural, and industrial wastewater. In Metro Manila alone, an estimated 2 million cubic meters of domestic wastewater is produced each day by its more than 20 million people. Only 17% of such volume is treated or processed into clean water; the rest ends up in Manila Bay and Laguna de Bay.
A comparison of the conventional activated sludge process and vermi-filtration process of wastewater treatment.
Diagram showing how vermi-filtration works.