E3S Web Conf.
Volume 142, 2020The 3rd International Conference on Agricultural and Life Sciences (ICALS 2019)
|Number of page(s)||4|
|Section||Smart Education for Food and Agriculture|
|Published online||21 January 2020|
Evaluation of Potency Spent Coffee Grounds for Make Black Compost
Environmental Sciences, Life and Environmental Department, 727-0022 Prefectural University of Hiroshima, Japan
2 Agricultural Technology, Agricultural Product Department, 68121 University of Jember, Indonesia
* Corresponding author: firstname.lastname@example.org
The aim for this research is to make black compost from spent coffee grounds (SCG). The content of hemicellulose and lignin from SCG were 37.28% and 22.45%. For mineral content, Potassium (3 g/kg) is the most abundant element in spent coffee ground, followed by calcium (1.23 g/kg), magnesium (1.11 g/kg), phosphorus (0.89 g/kg) and natrium (0.7 g/kg). SCG also contains Carbon and Nitrogen ratios 1:19.5 which approaches the C / N ratio of the soil 1: 20. Composting process in aerobic condition for 2 months using Fungi, Bacillus and Lactic Acid Bacteria activator, produce black compost with good characteristic for plant and soil, such as C/N ratio under 1:10 and pH around 6 to 9.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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