TY - EJOUR
AU - Kumar, Amit
AU - Muzamil, Mohd.
AU - Dixit, Jagvir
PY - 2023
DA - November
TI - Smart vermicomposting bin for rapid transformation of Dal lake aquatic weed into fortified vermicompost
T2 - International Journal of Recycling of Organic Waste in Agriculture
VL - 12
L1 - https://oiccpress.com/international-journal-of-recycling-of-organic-waste-in-agriculture/article/smart-vermicomposting-bin-for-rapid-transformation-of-dal-lake-aquatic-weed-into-fortified-vermicompost/
DO - 10.30486/ijrowa.2022.1955835.1445
N2 - Purpose The study was conducted to develop and assess the feasibility of the low-cost mechanical interface as an alternative to the conventional land-based bin type vermicomposting process. The idea was to reduce the drudgery, enrich the nutrient status and reduce the cost of preparation of vermicompost. Method A smart vermicomposting bin comprising of Arduino, feeding hopper, shredding rollers, spiral mixing unit, degradation bin and harvesting gate was fabricated for the preparation of vermicompost from Dal Lake aquatic weed in Kashmir valley. Eisenia fetida earthworm facilitated the degradation process. Results  The Dal lake aquatic weed was degraded in the smart vermicomposting bin. The turning frequency was set as 10 days and 20 days. The performance parameters at 10 days turning interval were pH 7.05, electrical conductivity 0.837 dSm-1, available nitrogen 1.15%, available phosphorus 0.06%, available potassium 1.91%, organic carbon 26.2% and C:N ratio 16.3:1 after 60 days degradation period. The comparative evaluation revealed that increase in available nitrogen, phosphorus and potassium at 10 days turning interval was higher by 4.01%, 6.06%, 4.94% than 20 days turning interval. The benefit – cost ratio was 0.45 in first year and 1.78 in second year with a pay-back period of 19 months. The unit cost of vermicompost production was Rs. 13 per kilogram. Conclusion The involvement of mechanical intervention in vermicomposting can help in reducing the dependence on scarce land and addressing the issue of peak labour shortage. Moreover, the automation of the system can reduce the human errors. Highlights A smart vermicomposting bin comprising of feeding unit, shredding rollers, degradation chamber, spiral mixing unit and harvesting gate was conceptualized, developed and evaluated for the degradation of Dal lake aquatic weed in Kashmir valley. The evaluation was carried out at a turning frequency of 10 days and 20 days and degradation period of 20, 40 and 60 days. The responses were measured in terms of pH, electrical conductivity, available nitrogen, available phosphorus, available potassium, organic carbon and C:N ratio. The performance parameters at 10 days turning interval were pH 7.05, electrical conductivity 0.837 dSm-1, available nitrogen 1.15%, available phosphorus 0.06%, available potassium 1.91%, organic carbon 26.2% and C:N ratio 16.3:1 after 60 days degradation period. Comparatively, there was an increase in available nitrogen, phosphorus and potassium by 4.01%, 6.06%, 4.94% with 10 days turning frequency in 60 days degradation period. The cost analysis revealed that the benefit – cost ratio was 0.45 in first year and 1.78 in second year with a pay-back period of 19 months. The unit cost of vermicompost production was obtained as Rs. 13 per kilogram. 
IS - 2
PB - OICC Press
KW - Waste management, Arduino, Dal lake aquatic weed, Eisenia fetida, Vermicompost 
EN -