The effectiveness of coconut shell charcoal and activated carbon on deodorization of sludge from ice cream industry WWTP

Abstract Coconut shell contains several components of biomass including cellulose, lignin, and pentosan, which can be used in the form charcoal as a bioabsorbent. Sludge waste is residue formed by-product wastewater treatment at plant (WWTP). emits odors that disturb local residents. This study aimed to deodorize ice cream slurry using coconut activated carbon odor adsorbent. The ratio each adsorbent was based on preliminary experiment, namely 1:1, 1:3, 1:5, 1:6, 1:7. measurement parameters for sludge were value, pH, temperature, water content measured daily. Ammonia sulfide levels titration method, while protein determined UV-Vis spectrophotometer. Odor reduction mixed with better than charcoal; by optimum mass 1:3 decrease 97.13% obtained within seven days. ammonia decreased from 10,276 mg/kg 308 use 1:1 252 end experiment. 1.215 mg/L 0.0483 sample an samples