#TITLE_ALTERNATIVE#

• Main Author: SUSANTO (NIM: 15304091), NOVRI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/11075
• Institution: Institut Teknologi Bandung

Bio-waste is a group of residues which are organic and compostable such as vegetables, fruits, etc. Bio-waste may be produced from activities done in the marketplace. An increase in human activities in the market may produce higher numbers of bio-waste. Therefore, Mechanical Biological Treatment (MBT) may be done to process bio-waste. MBT is divided into two processes, mechanical and biological. The mechanical process aims to separate inorganic portions of the bio-waste before biological processes such as anaerobic digestion and composting. Several treatments are given to the bio-waste before entering the biological process, including washing and blending of bio-waste and water. Variations of the treatments include the blending time, the washing water and the ratio of bio-waste to washing water. From all the variations, an optimum variation is found by a comparison of the CNP content. The ideal ratio for composting are C:N 15-20 and C:P 70-150, and for anaerobic digestion, ratio C:N is 50 . The optimum ratio for the first running is 1:1 with a blending time of 45 seconds and with the waste water from tofu industry as washing water. For the second running, the optimum ratio is 1:3 with a blending time of 45 seconds and with the tap water as washing water. The result from the first running was found in range of the ideal ratio, while the second running, the optimum variation was chosen, because it was the nearest one from the ideal ratio.