CD Skripsi

Kinetika Adsorpsi Zat Warna Direct Brown Menggunakan Hidroksiapatit Dengan Variasi Dosis Adsorben Dan Ph Larutan

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ABSTRACT
Adsorption is a dye absorption process using various adsorbents. Dye waste produced by
industry can pollute the environment because it is dangerous and toxic. Hydroxyapatite is a
compound composed of calcium, phosphate, oxygen and hydrogen. This study uses
calcium-deficient hydroxyapatite with Ca / P of more / less than 1.67 as the adsorption
medium. Utilization of the adsorption process in dye absorption is useful for determining the
isotherm model and adsorption kinetics. The dye used is direct brown. The dye adsorption
process was carried out at variations in pH (6, 7, 8) and the adsorbent mass (0.5; 0.75; 1
gram) at a rotating speed of 250 rpm, the dye concentration was 30 ppm contact time (0;
30; 60; 90; 120; 150 and 180 minutes). The maximum adsorption capacity occurs at pH 6
with an absorption efficiency of 51.4%. The isotherm model of the direct brown dye
adsorption process follows the Temkin model with a R2 value of 0.9996. The kinetics of the
direct brown dye adsorption process followed the intraparticle diffusion order kinetics model
with R2 value of 0.9938 in the adsorption process with a pH of 6 and an adsorbent mass of
0.5 grams.
Keywords : Adsorption, Dyes, Hydroxyapatite, Isotherm, pH.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0119)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Kimia., 2020

Deskripsi Fisik

xii, 29 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0119)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

TEKNIK KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Daus

Versi lain/terkait

Lampiran Berkas

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