| dc.description.abstract | Research on nutmeg shell activated carbon as a water adsorber aims to reduce ammonia levels in fish pond water. The process of making nutmeg shell activated carbon starts with nutmeg shell dried in the sun for 3 hours and carbonized at 350oC for 2 hours, then mashed using a mortar and sifted 100 mesh, then chemically activated using 1M HCl solution for 24 hours and then washed using distilled water until the pH is neutral and dried using a 110oC oven for 1 hour. Furthermore, the activated carbon of nutmeg shell was physically activated with temperature variations of 600oC, 650oC, and 700oC for 2 hours. Activated carbon that has been activated is then tested for standard activated carbon requirements according to SNI, characterized tests to determine water absorption (physical properties), SEM-EDX Mapping, crystal testing (XRD), and FTIR functional groups. The standard test results of activated carbon decreased by SNI obtained the results of 9.23% moisture content, 8.45% volatile matter content, 9.71% ash content and 81.84% bound carbon content. Physical test of optimum water absorption value at 700oC is 36.5%. SEM EDX Mapping test with an average pore diameter size of 232 nm, XRD results show the crystal structure formed is an amorphous structure, and FTIR test analysis on activated carbon that has been activated shows 3621.27 cm-1 the presence of O-H bonds and the 1700.13 cm-1 region shows the presence of C≡ C bonds. The results of testing ammonia levels with a mass variation of activated carbon 2 gr, 4 gr and 6 gr each temperature with 100 ml of pool water show that the mass variation of 6 gr 700oC temperature is able to reduce ammonia levels from 2 mg/L to 0.2 mg/L. | en_US |
