CD Skripsi

Karakterisasi Serta Regenerasi Adsorben Komposit Spent Mushroom Substrate (Sms)- Spent Bleaching Earth (Sbe) Pada Penyisihan Logam Cu Dan Pb

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ABSTRACT
Heavy metals such as Cu and Pb are hazardous pollutants that are toxic, persistent,
and capable of accumulating in living organisms. The concentration of heavy
metals exceeding the quality standards in wastewater requires further treatment
before being discharged into the environment. Adsorption is an effective and
economical method for reducing heavy metal content. This study aims to
characterize adsorbent materials in the form of spent mushroom substrate (SMS),
spent bleaching earth (SBE), and SMS-SBE composites; analyze the adsorption
capacity of the composite for Cu and Pb ions; and evaluate the regeneration ability
of the adsorbent. Characterization was carried out using SEM, BET, XRD, and
FTIR analyses. The adsorption process was conducted using artificial Cu and Pb
wastewater with a concentration of 120 mg/L, adsorbent mass of 3 grams, contact
time of 60 minutes, pH 5, and a composite composition of 25% SBE : 75% SMS.
Regeneration was performed over three cycles using 200 mL of 0.1 M HCl as the
eluent, with a stirring speed of 150 rpm for 1 hour. The results showed that the
surface characteristics of the SMS-SBE composite adsorbent exhibited evenly
distributed pores and active functional groups such as hydroxyl, carboxyl, and
siloxane, which support metal ion binding. The highest removal efficiency was
achieved during the first adsorption cycle, reaching 73.43% for Cu and 77.12% for
Pb, with adsorption capacities of 14.613 mg/g and 15.207 mg/g, respectively. The
highest desorption percentage occurred in the first regeneration cycle, reaching
87% for both Cu and Pb, but decreased in subsequent cycles.
Keywords: Adsorption, Composite Adsorbent, Regeneration, Spent Bleaching
Earth (SBE), Spent Mushroom Substrate (SMS)

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

2007125619

Penerbit

Pekanbaru : Universitas Riau – F.TEKNIK – lingkungan., 2025

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

2007125619

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 LINGKUNGAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

daus

Versi lain/terkait

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