Pembuatan Komposit Karet Alam Sir 20-Arang Aktif Cangkang Kemiri-Pasir Cor Se…

The need for drinking water in the Pekanbaru-Kampar community is increasing every day, with a government program through the drinking water supply system (SPAM) making the Kampar River a source of drinking water, but its quality as a source of drinking water has declined due to high activity around the watershed. (DAS). Therefore, it is necessary to do a filtering process, one of which is usin…