(Peer Review + Similarity + Document) INDONESIAN NANOCLAYS FOR THE REMOVAL OF NITRATE IN LIQUID WASTE CONTAINING PALM OIL MILL EFFLUENT

Sudadi, Untung and Anwar, Syaiful and Anggriawan, Rendy and Afrizal, Tengku (2019) (Peer Review + Similarity + Document) INDONESIAN NANOCLAYS FOR THE REMOVAL OF NITRATE IN LIQUID WASTE CONTAINING PALM OIL MILL EFFLUENT. Universitas Muhammadiyah Jember.

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Abstract

Land application of liquid waste containing palm oil mill effluent (LW-POME) as soil ameliorant can cause water contamination due to its high content of nitrate if improperly treated. Indonesia is rich with volcanic tuff materials that contain variable charged soil clay minerals. This study wasaimed at to extract nanoclays (fraction sized <200 nm) from volcanic tuffs of Mt. Salak, West Java, Indonesia, and evaluate their potential use as adsorbent of nitrate in LW-POME. By applying dispersion, ultrasonication, centrifugation, and dialysis separation techniques, it could be extracted positively charged nanoclays nc3and nc4 from the respectively tuff materials tv3and tv4. Their potential use as natural adsorbent of nitrate as anionic contaminantwas evaluated using Langmuir isothermal adsorption model. After 48 h equilibration, it could be extracted 4.33 mg nc3/g tv3and 7.73 mg nc4/g tv4with nitrate adsorption maxima of 48.3 and 40 mg/g for nc3and nc4, respectively. The removal of nitrate in the LW-POME from 62 to 20 mg/L as to comply with the Indonesian liquid waste quality standard required 29.81 mg nc3/L or 39.34 mg nc4/L. The extracted nanoclays were considered prospective to be utilized as natural adsorbent for nitrate removal in LW-POME. Keywords: anionic contaminant, natural adsorbent, nitrate adsorption, volcanic tuff

Item Type: Peer Review
Subjects: 500 Natural Science and Mathematics > 540 Chemistry and Allied Science
Divisions: Faculty of Agriculture > Department of Agrotechnology (S1)
Depositing User: Rendy Anggriawan
Date Deposited: 26 Apr 2021 01:08
Last Modified: 26 Apr 2021 01:08
URI: http://repository.unmuhjember.ac.id/id/eprint/9598

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