2013
DOI: 10.24960/jli.v3i1.621.59-65
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Pengaruh Penambahan Garam Natrium Dalam Proses Pengendapan Limbah Pengolahan Gambir Terhadap Rendemen Tanin

Abstract: ABSTRAKAir limbah industri pengolahan gambir yang mengandung senyawa tanin saat ini belum dimanfaatkan secara optimum. Limbah cair ini dapat digunakan sebagai sumber warna alami atau tanin, namun tidak tahan dalam penyimpanan karena sering ditumbuhi jamur, sehingga dalam bentuk padatan/tepung tanin akan lebih menguntungkan. Untuk mendapatkan endapan tanin dilakukan penelitian pengaruh penambahan bahan pengendap terhadap pembentukan tanin dari limbah proses pengolahan gambir. Penelitian ini bertujuan untuk mend… Show more

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“…A previous study has found this color to have excellent (4-5) colorfastness on washing (40 o C), on exposure to light, and rubbing [4], where it has been used on cotton, silk, and rayon batik cloth [10] with the best result obtained on silk fabrics. Wastewater seeps out during pressing leaves and branches, containing 25-30% tannins [11], [12]. Tannins can often be used as textile dyes [5], [13].…”
Section: Introductionmentioning
confidence: 99%
“…A previous study has found this color to have excellent (4-5) colorfastness on washing (40 o C), on exposure to light, and rubbing [4], where it has been used on cotton, silk, and rayon batik cloth [10] with the best result obtained on silk fabrics. Wastewater seeps out during pressing leaves and branches, containing 25-30% tannins [11], [12]. Tannins can often be used as textile dyes [5], [13].…”
Section: Introductionmentioning
confidence: 99%