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All Journal Bumi Lestari Jurnal Kimia Terapan Indonesia
Neni Sintawardani
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Environmental Science Materials Science & Nanotechnology

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ECOLOGICAL APPROACH ON SANITATION: COMPOSTING OF HUMAN EXCRETA USING BIOTOILET WITH LIGNOCELLULOSES WASTE MATERIAL AS MATRIX Jovita Tri Astuti; Dewi Nilawati; Neni Sintawardani
Bumi Lestari Journal of Environment Vol 16 No 1 (2016)
Publisher : Environmental Research Center (PPLH) of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/blje.2016.v16.i01.p01

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.
EFFECT OF OZONIZATION ON COD AND BOD5 VALUES OF WASTEWATER FROM DETERGENT MANUFACTURER Adi Mulyanto; Neni Sintawardani
Jurnal Kimia Terapan Indonesia Vol 8, No 1-2 (1998)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3057.434 KB) | DOI: 10.14203/jkti.v8i1-2.208

Abstract

The aim of this experiments were to examine the effect of ozonizotion on COD and BOD5 value of wastewater from a detergent manufacturer and to put forward the efficiency of COD and BOD5 removal as a function of the ozonization. It has been known that the detergent industry produces wastewater with high concentration of both COD and BOD5. The observation showed that the ozonization alone was not a practical approachfor COD and BOD5 removal. However, the role of ozonization as a preliminary process before the biological one seems to be significant.
Co-Authors Adi Mulyanto Dewi Nilawati Jovita Tri Astuti