CD Skripsi

Studi Isoterm, Termodinamik Dan Kinetika Adsorpsi Zat Warna Direct Brown Menggunakan Hidroksiapatit Defisien Kalsium

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Dye waste produced by industries contains dangerous and poison materials that could
pollute the environment. In this study, hydroxyapatite calcium deficient will be used as
medium of adsorption. This process will determine the isotherm models, thermodynamic,
and adsorption kinetics models. The dye adsorption process was carried out at various
temperatures and initial concentration of dye at a rotating speed of 250 rpm. The
maximum adsorption capacity raised at a concentration of 10 ppm and temperature of
30ᵒC with the adsorption capacity of 87.5%. The isotherm model of the direct brown dye
adsorption process follows the Langmuir model, since the Langmuir and the freundlich
model,. The adsorption kinetic model of direct brown followed the pseudo second order
with 0.9992 of R2 used 40ᵒC of temperature, the initial concentration of direct brown
solution was 40 ppm with an adsorption rate constant of 0.052. This study applied physical
and chemical adsorption which using heat capacity of adsorption (ΔH) of -40,94 kJ / mol
for Langmuir model and (ΔH) of -23,59 kJ / mol for Freundlich model.
Key words : Adsorption, Hydroxyapatite, Konsentration, Dye.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

07 02. 120 (0117)

Penerbit

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

Deskripsi Fisik

ix, 79 hlm.; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

07 02. 120 (0117)

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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