This study was conducted to see the effect of size and freshness variations of organic waste on BSF growth. The research was conducted on laboratory-scale research at campus of Pasundan University and field-scale research on Pojok Kang Pisman at Bandung City-hall. In laboratory-scale research, the organic waste used is artificial organic waste whose composition is close to organic waste from market. Meanwhile in field-scale research, the organic waste used is from market organic waste. Variations in pretreatment were carried out by varying the organic waste size and freshness in laboratory-scale research and comparison in order of chopping and fermentation of organic waste in various cocopeat thickness in field-scale research. Maggot/BSF growth analysis was carried out by calculating the waste reduction index, Efficiency of Conversion Digested Feed, survival rate, and maggot protein tests. The results of the laboratory study showed that the smaller the size of the waste influenced increasing the WRI, SR and ECD values but had little effect on the protein content of the larvae. The protein content of larvae is suitable for chicken feed (19-21%). However, when the waste was fermented, there was a significant increase in WRI and SR, and the protein content of the larvae increased (32-34%), suitable for tilapia and catfish feed. Field research results with higher larval density in fermented waste resulted in higher WRI and ECD values compared to laboratory results with lower larval density. In addition, the treatment of chop-fermentation and fermentation-chopped sequences gave different water content values ​​which affected the WRI and ECD values. The higher the water content, the lower the WRI and ECD values. The protein content of larvae in the field study was almost the same as in the laboratory study, ranging from (31-34%).

Puri Cipageran Indah (PCI) I market waste in Cimahi City is currently not managed by implementing local reduction and processing. Currently, waste is only collected and transported to the nearest TPS, without sorting and processing. There is a desire from local RW managers to do better waste management. Currently, there are around 108 traders in the market area, which only operate from 06.00-10.00 and in the afternoon for culinary traders. There is land for processing which is very limited in size (3×2 m) so that the processing technology that can be applied is also limited. One technology that can be applied is the processing of organic waste using Black Soldier Flies (BSF) larvae. Activities are carried out by holding meetings and mutual agreements regarding the layout of sanitation facilities including waste management. The provision of training to process waste using BSF larvae (maggot) was also carried out. The construction of facilities and environmental improvements are coordinated directly by partners by following the results of the agreement and research results regarding the waste processing process using maggot. In general, the activity went well, residents of PCI I Housing represented by the PCI Forum stated that they were greatly helped by the arrangement of the market area to be better and with educational nuances for the general public.