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This research is intended to analyzed composting condition of leaf organic waste
(temperature and pH fluctuation), and analyzed the compost quality comparison
between aerated static piles (ASP) and open windrow method. Composition of
ingredients for one composting pile namely: 20 kg of leaf waste, 0.8 kg lime, chicken
manure 0.6 kg, EM-4 20 ml, 20 grams of sugar and 200 ml of water. Variation of
aeration rate in this ASP method is 0.4 L/min.kg; 0.5 L/min.kg and 0.6 L/min.kg, open
windrow method is using as control. During each aeration, parameters such as carbonto-
nitrogen ratio, temperature and pH were measured. The results of this research
showed that the colour of compost is brown to black, odorless and similar the smell of
soil, the compost texture similar as soil, particle size between 0.55-25 mm, and the
temperature of the mature compost is 30°C which is according to SNI: 19-7030 2004.
Based on the temperature fluctuation, aeration rate of 0.5 L / min.kg is the most ideal
aeration rate because resulting the highest temperature fluctuation than the other
aeration rate. pH parameter of all aeration rate did not showed significant differences, it
has the same range between 8,17-8,27. The optimum aeration rate based on carbon-tonitrogen
ratio is 0.6 L / min.kg, it has the lowest carbon-to-nitrogen ratio (11.50). The
results of statistical tests can be concluded that there is no significant differences
between aeration rate of 0.4, 0.5 and 0.6 L / min.kg in carbon-to-nitrogen ratio of
compost. |
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