Conducted by BatStateU
, Started on 2013 -
Completed on 2014
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The processing of Jatrophacurcas (tubang-bakod) to produce biodiesel entails wastes in
the form of seedcake which can be converted into valuable product that can help nurture and improve soil
properties. The College of Industrial Technology and the Chemical Engineering Department of Batangas
State University (BatstateU) conducted an experimental study which includes the composting of the
combination of Jatropha Seed-Cake(JSC) and Chicken Manure(CM) , formulating ratios of JSC and CM
andcharacterization of the organic fertilizer produced. Generally, this study aimed to promote proper
waste disposal by producing an organic fertilizer from the waste of biodiesel production which uses
Jatropha plant and proving the feasibility of making the fertilizer as the main source of nutrient for
plants. Specifically, the nutrients that were considered were Nitrogen (N), Phosphorus (P), Potassium (K)
and the Carbon: Nitrogen (C:N) ratio. Composting lasted for 6 weeks, three formulations were used,
30(CM):70(JSC), 50(CM):50(JSC) and 70(CM):30(JSC). The result implies that theorganic fertilizers
produced can be a good substitute to the commercially available fertilizers.