Efektivitas Karbon Aktif Tongkol Jagung Ungu dalam Menurunkan Kadar Amonia (NH3) Pada Air Kolam Ikan

Abstract

Research on purple corn cob activated carbon as a water adsorbent aims to reduce ammonia levels in fish pond water. Purple corn cob activated carbon is used to reduce ammonia (NH3) levels in fish pond water. Carbonation temperatures are at 550oC, 600oC and 650oC for 30 minutes, mashed with 100 mesh sieve, chemically activated using 6% Na2CO3 stirred at 70oC for 15 minutes and soaked for 24 hours then washed using distilled water pH neutral and oven at 100oC for 1 hour. Testing the level of ammonia with a mass of activated carbon 1.5 gr, 2.0 gr and 2.5 gr with 50 ml of ammonia water. Ammonia content from 1 mg/l to 0.2 mg/l with a mass of 1.5 g of activated carbon. The water absorption is at a temperature of 500oC with 20.9%. SEM test EDX Mapping with an average pore diameter of 220 nm, XRD results showed Rhombohedral crystal structure, as well as FTIR test analysis on carbon that had been activated with a wave number of 3244.60 cm-1 and 6% Na2CO3 3621.27 cm-1 of an O-H bond. In the carbon sample that has not been activated, absorption band of 2882.30 cm-1 of a C-H bond.