POTENTIAL CONVERSION OF FAECAL SLUDGE BY BIOCONVERSION AGENT BLACK SOLDIER FLY LARVAE (CASE STUDY: IPLT SOREANG BANDUNG DISTRICT)

• Main Author: Asrar, Aan
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/85853
• Institution: Institut Teknologi Bandung

Black Soldier Fly (BSF) larvae are known to decompose various types of organic waste. Septage sludge itself can be categorised as organic waste, so it has the potential to be decomposed by BSF larvae, thereby reducing waste and producing economically valuable by-products. This study aims to evaluate the effectiveness of BSF larvae in converting sewage sludge as well as measuring growth parameters and the resulting waste reduction. The research method involved measuring larval weight, Waste Reduction Index (WRI) value, Feed Conversion Efficiency (ECD), Survival Rate (SR), as well as content testing on BSF larvae and residue at the end of bioconversion. In this study, treatments consisting of solid sludge, liquid sludge, solid sludge mixed with cabbage waste (1:1), liquid sludge mixed with cabbage waste (1:1), and control feed in the form of chicken feed were used. The results of the experiment showed that the best larval growth occurred in the feeding of liquid sludge mixed with cabbage waste (1:1) with an average weight of 0.133gr/larvae, the highest WRI value was shown in the feeding of solid sludge mixed with cabbage (1:1) with a value of 1.72%, the highest ECD was found in the feeding of liquid blood mixed with cabbage (1:1) with a value of 0.66% and the survival rate (SR) was 96.2% in solid sludge and liquid sludge mixed with cabbage waste (1:1). In addition, neither BSF larvae nor bioconverted residues could produce biomass and residues with high nutrient content that are safe to use as animal feed and organic fertiliser according to existing standards