Pengaruh Konsentrasi Kitosan Udang Rama-Rama (Thalassina Anomala) Sebagai Per…

T. anomala is a type of shrimp that commonly found in the muddy areas of mangrove along the coastal area Selat Panjang. This study aims to determine the effectiveness of the chitosan in absorbing heavy metals in gravestones. Carapace from T. anomala is used as raw material of chitosan. The carapace was taken and then washed, dried, refined, demineralization, de-preoteinated, deasitelation and w…