Institut de Recherches Géologiques et Minières

Purification performance of coconut fibers, palm kernel fibers, and shredded plastic bottles in biofilter septic tanks: efficiency and limitations

ABSTRACT This biofiltration system tests three substrates: plastic fragments (COD: -55%, turbidity: -95%, nitrates: -60%), palm kernel fibers (COD: -69%, turbidity: -95%, nitrates: -70%), and coconut fibers. The latter show optimal performances with a maximum reduction in COD (-7...

Stable isotopes reveal the origin and vulnerability of bottled and sachet drinking waters sold in Cameroon

Urbanisation and unreliable drinking water supply have increased reliance on packaged waters in Cameroon. However, their hydrogeological origin is poorly verified. This study investigated the spatio-temporal variation, origin, recharge and vulnerability of 35 brands (114 samples)...