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Nanik Ayumi
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Chemistry

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EFEKTIVITAS PENURUNAN KADAR SURFAKTAN LINIER ALKIL SULFONAT (LAS) DAN COD DARI LIMBAH CAIR DOMESTIK DENGAN METODE LUMPUR AKTIF Ni G. A. M Dwi Adhi Suastuti; I Nengah Simpen; Nanik Ayumi
Jurnal Kimia (Journal of Chemistry) Vol. 9, no. 1 Januari 2015
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.542 KB) | DOI: 10.24843/JCHEM.2015.v09.i01.p14

Abstract

This study aimed to determine the ability of the activated sludge in decreasing the concentration of surfactant Linear Alkyl Sulfonate (LAS) and COD in domestic wastewater. The study was begun with the preparation of liquid medium, then mixed with sediment samples to produce the activated sludge. The treatment was carried out by adding the activated sludge to 1250 mL of domestic sewage in the aeration system running for 168 hours. Observations of the LAS and COD values were performed in a period of 6, 24, 72, 120, and 168 hours. The results showed that 5 g activated sludge were able to reduce the values of LAS and COD of 99.70 and 91.08% respectively in 168 hours. The most significant declining values of LAS and COD took place at 6 hours treatment. The rate of declining values of LAS and COD were 82.78 and 55%
Co-Authors I Nengah Simpen Ni G. A. M. Dwi Adhi Suastuti