Pengaruh Waktu Adsorpsi Ion Pb2+ Terhadap Efektivitas Adsorben Bubuk Ampas Teh

ABSTRACT Heavy metals can be bad for the environment and health. Lead (Pb) is a very dangerous heavy metal with carcinogenic properties, which can cause health effects because it has toxic properties so that it blocks the work of enzymes in the body which can cause the body's metabolism to be cut off. Adsorption is a method that can be used to reduce the ion concentration in a polluted sol…