ECOLOGICAL APPROACH ON SANITATION: COMPOSTING OF HUMAN EXCRETA USING BIOTOILET WITH LIGNOCELLULOSES WASTE MATERIAL AS MATRIX

  • Jovita Tri Astuti
  • Dewi Nilawati
  • Neni Sintawardani

Abstract

This study was aimed to evaluate the characteristic and prospect of lignocelluloses waste material, i.e. mixtured wood sawdust as matrix in composting human excreta using Biotoilet. Initially, 26.4 kg mixtured wood sawdust (+4/-32 mesh) moisture 11.84% was filled into Biotoilet chamber, and added with 20L tap water to achieve ±50% moisture. Mixer in Biotoilet was adjusted  to run-on intermittently with interval 15 min, each for 2 min, i.e. 1 min to clockwise and counter-clockwise, respectively. Exhaust fan with flow rate of 0.04m3.sec-1 was operated continuously to ensure proper aeration. Human excreta were loaded daily to Biotoilet chamber for 90 days which would be composted. Data showed that temperature of composting system was 25.70-43.67oC. Moisture was 22.27-53.20% and pH 6.20-7.00. C/N ratio composted residual sawdust was 25:1. Ash, N, P, and K content were 11.78; 1.78; 0.85; and 0.95%, respectively. Bad odor was not created during composting. It was concluded mixtured wood sawdust could be used as matrix for composting human excreta. The compost could be categorized into Class-A that safe for food and non-food plant. Application of mixture wood sawdust as matrix in Biotoilet for composting human excreta could improve sanitation, prevent water degradation, at once increase soil quality for agricultural.

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Author Biographies

Jovita Tri Astuti
Environmental Working Group, Research Center for Chemistry
Indonesian Institute of Sciences (LIPI)

Dewi Nilawati
Environmental Working Group, Research Center for Chemistry
Indonesian Institute of Sciences (LIPI)
Neni Sintawardani
Environmental Working Group, Research Center for Chemistry
Indonesian Institute of Sciences (LIPI)
How to Cite
ASTUTI, Jovita Tri; NILAWATI, Dewi; SINTAWARDANI, Neni. ECOLOGICAL APPROACH ON SANITATION: COMPOSTING OF HUMAN EXCRETA USING BIOTOILET WITH LIGNOCELLULOSES WASTE MATERIAL AS MATRIX. Bumi Lestari Journal of Environment, [S.l.], v. 16, n. 1, aug. 2016. ISSN 2527-6158. Available at: <https://ojs.unud.ac.id/index.php/blje/article/view/23143>. Date accessed: 28 feb. 2020. doi: https://doi.org/10.24843/blje.2016.v16.i01.p01.
Section
Original Research Articles

Keywords

biotoilet, composting, human excreta, lignocelluloses waste, matrix, sanitation.