CD Skripsi

Studi Adsorpsi Logam Kadmium (Cd) Dalam Larutan Menggunakan Magnetic Biochar Berbahan Dasar Pelepah Kelapa Sawit

---

ABSTRACT
Cadmium (Cd) is a heavy metal that is found in many aquatic environments and has a high level of toxicity. The adsorption method can be used as an alternative in removing the metal. One of the adsorbents that can be used to remove Cd metal is magnetic biochar made from palm fronds. Palm fronds have the potential to be used as a base material for magnetic biochar because they contain cellulose, hemicellulose, and lignin. The biomass was impregnated with the addition of FeCl3.6H2O, then pyrolyzed at 500℃ for 20 minutes to produce magnetic biochar. This study aims to analyze the effect of contact time, pH, adsorbent dose, and initial concentration on the adsorption of Cd metal and determine the reaction kinetics and adsorption isotherms. This study used variations in contact time of 5, 15, 30, 60, 90, 120, 150, 180 minutes, pH 5, 6 and 7, adsorbent dose 1; 1.5; 2; 2.5; and 3 g/L, initial concentrations of Cd metal 2, 4, 6, 8, 10 mg/L. The results of this study indicated that the removal of Cd metal was present at a contact time of 60 minutes, pH 6, adsorbent dose of 2 g/L, initial concentration of 2 mg/L with a removal efficiency of 99.23% and an adsorption capacity of 1.29 mg/g. The appropriate kinetic model is a pseudo second order with a K2 value of 0.46499 g/mg/min-1 and a Qe of 5.050 mg/g. The appropriate isotherm model follows the Langmuir isotherm model with a KL value of 2.766 L/mg with a Qm of 18.278 mg/g and the Freundlich isotherm with a KF value of 21.392 (mg/g(L/mg)1/n) and an n value of 1.34.
Key word : adsorption, cadmium, isotherm, kinetics, adsorption isotherm, magnetic biochar

---

Ketersediaan

Informasi Detail

Judul Seri

-

No. Panggil

1807195444

Penerbit

Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Lingkungan., 2023

Deskripsi Fisik

-

Bahasa

Indonesia

ISBN/ISSN

-

Klasifikasi

1807195444

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

TEKNIK KIMIA

Info Detail Spesifik

-

Pernyataan Tanggungjawab

DAUS

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar