EFEK FOTODEGRADASI PADA PENGOLAHAN SURFAKTAN ANIONIK DARI LIMBAH LAUNDRY
DOI:
https://doi.org/10.32493/jitk.v2i1.1084Keywords:
Kata kunci, Surfaktan anionik, limbah laundry, fotodegradasi, TiO2Abstract
ABSTRAK
Pada penelitian ini telah dipejari efek fotodegradasi pada pengolahan surfaktan anionik pada limbah laundry. Proses fotodegradasi surfaktan anionik dalam limbah laundry dilakukan dengan cara menyinari campuran limbah laundry dan serbuk fotokatalis TiO2 dalam alat yang tertutup. Pada proses ini, juga dipelajari pengaruh waktu penyinaran dan massa fotokatalis. Pengukuran kandungan surfaktan anionik yang tersisa dalam limbah selama proses fotodegradasi dilakukan dengan metode spektrofotometri UV-visibel menggunakan pengompleks metilen biru (MBAS) sesuai prosedur ISO 7875, 1996. Hasil penelitian menunjukkan bahwa penurunan surfaktan anionik dapat dicapai dari 168,64 mg/L hingga 6,38 mg/L (96,28%) dengan waktu penyinaran 22 jam dan massa fotokatalis TiO2 optimum 50 mg. Proses fotodegradasi ini cukup menjanjikan untuk diaplikasikan dalam pengolahan limbah laundry.
Kata kunci: Surfaktan anionik, limbah laundry, fotodegradasi, TiO2
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