Pengaruh Kerapatan Biorafia Terhadap Penurunan Kadar Nitrat, Fosfat Dan Amoni…

The Sail River has been contaminated with nitrate, phosphate, and ammonia can be reduced by using biorafia (interweaving of several raffia knot masks that are mashed with shapes resembling duster as a place to attach to microorganisms). This study aimed to determine the effect of the density of biorafia in reducing levels of nitrate, phosphate, and ammonia contained in the water of the Sail Riv…