Efektivitas Komposit Material Overburden Batubara, Zeolit, dan Arang Aktif Tempurung Kelapa Sebagai Adsorben Besi dalam Air Asam Tambang

Mycelia Paradise, Edy Nursanto, Nurkhamim Nurkhamim
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Abstract

Abstrak: Penelitian ini mempelajari penyerapan Fe dari air asam tambang yang berasal dari lokasi penambangan batubara. Adsorben yang digunakan dalam penelitian ini yaitu kombinasi antara claystone, zeolit, dan arang aktif tempurung kelapa. Adsorben tersebut harus diaktivasi terlebih dahulu untuk membersihkan pengotor di permukaannya sehingga luas permukaannya meningkat. Aktivasi claystone dilakukan dengan 3M NaOH, zeolit dengan 3M HCl, dan arang tempurung kelapa dengan 4M HCl. Komposit dibuat dengan mencampurkan ketiga adsorben dengan  perbandingan (Claystone[C]: Zeolit[Z]: Arang aktif[A]) = 25:25:50. Hasil uji luas permukaan menunjukkan bahwa komposit memiliki luas permukaan 62,44 m2/g. Adsorpsi dilakukan dengan sistem batch menggunakan alat hot plate stirer pada variasi waktu kontak 30, 60, 90, 120, dan 150 menit. Berdasarkan hasil uji adsorpsi,  7,5 gram komposit  mampu menurunkan konsentrasi Fe dengan efektivitas 99,61%  dan kapasitas adsorpsi 0,432 mg/g pada waktu kontak 30 menit.  Kata Kunci: adsorpsi, komposit, efektivitas, kapasitas Abstract: This research studied adsorption iron (Fe) from acid mine drainage in coal mining. Adsorbent used in this research is the combination of activated claystone, activated zeolite, and ativated carbon from coconut shell. The adsorbents need to be activated to remove the impurities from its surface and improved its surface area. Claystone was activated using 3M NaOH, 3M HCl for zeolite, and 4M HCl for coconut shell. Composite was made by mixing claystone, zeolite, and coconut shell with 3 ratio (claystone [C], zeolite [Z], activated carbon [A]) = 25:25:50. The result of surface area analyzer showed that the surface area of composite was 62,44 m2/g. Adsorption with batch system was carried out using hot plate stirer on 30,60, 90, 120, and 150 minutes of contact time. Adsorption result showed that 7,5 gram of composite succeded decreasing iron metal concentration with 99,61%  effectiveness and 0,432 mg/g adsorption capacity on 30 minutes of contact time. Keywords: adsorption, composite, efectiveness, capacity
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高密度材料复合材料对煤炭、Zeolit和椰子壳活性炭的有效作用,在矿井酸中加入铁
摘要:本研究研究了从煤矿开采中提取的硫酸溶液。用于这项研究的Adsorben是claystone、zeolit和椰子壳炭的结合。应先激活Adsorben,以清除表面的杂质,从而增加表面积。粘土石的激活是用3M NaOH, zeolit with 3M HCl,椰子壳炭和4M HCl。复合材料是通过将这三种成分与粘土块的比例混合而成的(Claystone[C]: Zeolit[Z]:活炭[A])来合成的。测试结果显示,该复合材料的表面面积为62.44平方/g。Adsorpsi是通过一个批次系统使用热板工具进行的,在不同的接触时间30、60、90、120和150分钟。根据导体检测结果,7。5克合成物可以在30分钟内有效地降低Fe的浓度99.61%,以及0.432 mg/g的吸附能力。关键词:吸收、复合、有效性、能效、能效:这项研究从煤矿区的酸性铅酸中提取铁。这项研究的重点是激活的粘土石、激活的zeolite和稳定的碳壳。adsorbents需要激活来从它的表面移除杂质,并使它的表面活跃起来。粘土石被激活使用3M NaOH, 3M为zeolite, 4M为coconut shell。这个Composite是由三轮粘土粘土、zeolite和壳壳组合而成的。分析师建议表面区域composite区域为62.44平方英尺/g。使用偏振光板在30,60、90、120和150分钟的接触时间被考虑。客户推荐的广告显示,在30分钟内,铁铁浓度为99.61%,0.432 mg/g自动导引。规则:规则,共通,效率,电学
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