CD Skripsi

Pengaruh Suhu Dan Konsentrasi Adsorbat Terhadap Biosorpsi Logam Berat Pb(Ii) Dan Cu(Ii) Menggunakan Spent Mushroom Substrate (Sms) Coprinus Comatus

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Spent mushroom substrate (SMS) is a biomass waste produced from mushroom production which leaves mushroom residue in the planting medium, which contains negatively charged groups such as hydroxyl, carboxyl acids and phenolic groups which can bind heavy metals. The aim of this research is to obtain the optimum temperature and adsorbate concentration in the biosorption of heavy metals Pb(II) and Cu(II) by calculating the removal efficiency and biosorption capacity and determining the biosorption isotherms and thermodynamics. The variables that will be tested in this research are temperature (30°C, 40°C, 50°C) and adsorbate concentration (10,20,30,40,50 mg/L). The BET test results show that the SMS surface area is 1.467 m2/g. As for both metals, the best adsorbate concentration was obtained at 10 mg/L and at a temperature of 50°C, with the highest efficiency in biosorption of Pb(II) and Cu(II) metals respectively 87.50% and 86.82% and capacity maximum biosorption was 19,466 mg/L and 19,092 mg/L. The appropriate isotherm model follows the Langmuir and Freundlich isotherm model, where the R2 values obtained at a temperature of 50°C are 0.994 and 0.997 for Pb(II) metal and 0.993 and 0.994 for Cu(II) metal. The thermodynamic parameters of biosorption on Pb(II) metal are ΔG° (-29.672; -30.873; -32.770), ΔH° (17.144), ΔS° (152.497) and on Cu(II) metal are ΔG° (-29.504; -33.707; -36.379), ΔH° (74.903), ΔS° (345.364), which shows that biosorption occurs spontaneously, is endothermic and the irregularity between the surface of the biosorbent and the adsorbate increases during the biosorption process of both metals.


Keywords: Spent Mushroom Substrate (SMS), Coprinus comatus, biosorption, adsorbate concentration, biosorption thermodynamic

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1907113442

Penerbit

Pekanbaru : Universitas Riau - F. Teknik - Teknik Lingkungan., 2024

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1907113442

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

Vina

Versi lain/terkait

Lampiran Berkas

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