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Penentuan Kualitas Arang Aktif Dari Kulit Singkong (Manihot Utillisima) Sebagai Adsorben Dalam Proses Adsorpsi Ion Timbal (Pb2+)

ABSTRACT
The contamination of lead (Pb) heavy metal in industrial waste is one of the serious environmental problems that threaten both the environment and human health. Industrial wastewater containing lead ions (Pb²⁺) can accumulate in the food chain, posing a danger to human health. One effective and environmentally friendly solution is the adsorption method using biomass as an adsorbent. Cassava peels are agricultural waste from cassava tubers that have high carbon content, making them suitable for conversion into activated carbon. The carbon is activated using a NaOH solution to enhance the adsorption capacity by opening the surface pores. This study aims to investigate the effect of temperature and contact time during the adsorption process of lead ions (Pb²⁺) on the adsorption capacity of activated carbon derived from cassava peels and to evaluate its effectiveness. The method involved chemical activation using 0.1 N NaOH for 24 hours, followed by adsorption of 10 ppm Pb²⁺ ions at temperatures of 40°C and 50°C for 10, 20, 30, and 40 minutes. The concentration of lead ions was analyzed using Atomic Absorption Spectrophotometry to determine the amount of metal adsorbed and the effectiveness of the adsorption process. Experimental results showed that both temperature and contact time significantly affected the adsorbent's performance. The highest adsorption capacity was obtained at 40°C, with a value of 0.435 mg/g, and the optimum contact time was 40 minutes. The highest adsorption effectiveness was 93.93% at 40°C, also with the best performance at 40 minutes.
Keywords: adsorption, activated carbon, AAS (Atomic Absorption Spectrophotometry), Pb²⁺ ions, cassava peel.

Ketersediaan
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Perpustakaan Universitas Riau 2207025607
2207025607
Tersedia
Informasi Detail
Judul Seri
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No. Panggil
2207025607
Penerbit
Pekanbaru : Universitas Riau – F.TEKNIK – kimia.,
Deskripsi Fisik
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Bahasa
Indonesia
ISBN/ISSN
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Klasifikasi
2207025607
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
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Pernyataan Tanggungjawab
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