Pengaruh Lokasi Zeolit Alam Bayah terhadap Adsorpsi Amonium: Studi Kinetika dan Kesetimbangan

Hakiki, Muhammad; Makiyi, Muhammad; Nuryoto, Nuryoto; Rahmayetty, Rahmayetty; Kustiningsih, Indar; Kurniawan, Teguh

doi:10.29122/jtl.v22i1.4403

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…Specifically, the adsorbent synthesized from low-rank coal of East Kalimantan was observed to have a microporous surface with the micropore area, and the micropore volume is 237.732 m 2 /g and 0.121797 cc/g, respectively. The larger the surface area of the low-rank coal adsorbent, which means the low-rank coal adsorbent has the potential for greater adsorption capacity [10].…”

Section: Characteristics Of Low-rank Coal Of East Kalimantan As Adsor...mentioning

confidence: 99%

The characteristic of East Kalimantan’s low-rank coal as an adsorbent for Methylene Blue (MB) dye removal from simulated textile wastewater

Patmawati

Shreeshivadasan

2023

IOP Conf. Ser.: Earth Environ. Sci.

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As the interest in developing and applying low-cost adsorbents is growing, the purpose of this paper is to introduce East Kalimantan’s low-rank coal as an adsorbent that is abundant in nature but underutilized. This adsorbent was used in a batch adsorption process to remove Methylene Blue (MB) from simulated textile wastewater. The study was conducted at a range of pH values (from 3 to 13) using a variety of low-rank coal adsorbents (60, 80, 100, 120, 140, and 160 mg). Approximately 100 mg/L of MB was added to 100 mL of simulated textile wastewater over 60 minutes using a shaker set to 150 rpm. The pH value and the amount of adsorbent used have a significant effect on removing MB dye. The pH results indicated that the removal of MB dye is relatively constant between pH 3 and 11. However, the removal rate increased when the pH was increased to 12—increased the pH to 13, which resulted in a significant decrease in MB dye removal. Meanwhile, as the adsorbent dosage increased from 60 to 100 mg at pH 12, the removal of MB dye increased and then decreased. At pH 12 and adsorbent dosage of 100 mg, the maximum removal of MB dye was 99.40 %. Thus, East Kalimantan’s low-rank coal is an intriguing alternative for removing MB dye from simulated textile wastewater.

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Section: Characteristics Of Low-rank Coal Of East Kalimantan As Adsor...mentioning

confidence: 99%

The characteristic of East Kalimantan’s low-rank coal as an adsorbent for Methylene Blue (MB) dye removal from simulated textile wastewater

Patmawati

Shreeshivadasan

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Pulau Flores Provinsi Nusa Tenggara Timur (NTT), memiliki cadangan zeolit alam dengan yang cukup besar, dengan jumlah deposit zeolit terbanyak berada di kabupaten Ende, yaitu sekitar 6.115.000 ton [10] [11]. Namun, diketahui juga bahwa zeolit alam di Indonesia umumnya memiliki sifat fisika dan kimia yang variatif terutama apabila digunakan sebagai katalis, yang dimana hal tersebut bergantung pada lokasi pembentukan dari zeolit itu sendiri [12]. Oleh karena itu, zeolit alam perlu diaktivasi terlebih dahulu agar memiliki sifat seperti zeolit sintesis ZSM [13].…”

Section: Pendahuluanunclassified

Utilization of Ende Natural Zeolite as a Catalyst in Polyethylene Pyrolysis from Plastic Waste

Bani

2023

RBAET

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Penelitian ini bertujuan untuk mengkarakterisasi zeolit Ende menjadi katalis pada pirolisis polietilena dari sampah plastik; mengetahui pengaruh katalis zeolit alam Ende terhadap energi aktivasi pirolisis; mengetahui pengaruh suhu dalam pirolisis; mengetahui pengaruh katalis dalam pirolisis; mengetahui pengaruh interaksi antara suhu dan katalis dalam pirolisis. Berdasarkan hasil percobaan, maka diketahui bahwa proses aktivasi dapat merubah sifat kimia dan sifat fisika zeolit Ende meliputi kristalinitas, luas permukaan, volume pori dan jejari pori, serta keasamannya untuk dijadikan sebagai katalis; katalis zeolit mampu menurunkan energi aktivasi hingga 4.371,1 cal/mol; komposisi 0,10 merupakan komposisi terbaik dari penggunaan zeolit alam aktif Ende sebagai katalis dalam proses pirolisis polietilena dari sampah plastik; interaksi terbaik antara suhu dan katalis zeolit alam aktif Ende adalah pada perlakuan suhu 400°C dan komposisi katalis 0,10.

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Pyrolysis of Polyolefins into Chemicals Using Low-Cost Natural Zeolites

Irawan

Kurniawan²,

Nurkholifah³

et al. 2022

Waste Biomass Valor

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Massive production of disposable plastic that is not supported with proper plastic waste management has created an environmental problem. One solution that could be done to address this situation is by transforming plastics into chemicals through pyrolysis route. An experimental study of pyrolysis from polyethylene (PE) and polypropylene (PP) has been done by catalytic method and utilization of low-cost natural zeolite in a semi-batch reactor. A low-cost natural zeolite made from acid-treated zeolite with 1 M HCl solution denoted as HZ. The prepared HZ catalyst was then carried out under pyrolysis reaction at 350, 400, 450 o C for 60 minutes. The chemical products composition from this reaction was analyzed using Gas Chromatography-Mass Spectrometry (GC-MS). According to the analysis result, a low-temperature reaction of pyrolysis could produce wax in all variant types of feed. Utilization of HZ catalyst could reduce formation wax while also increasing the yield of oil products after the reaction. Catalytic pyrolysis using HZ for PE and PP plastic feed yields oil products up to 67% and 70%, respectively. The composition of oil products mainly consisted of para n, ole n, and alcohol compounds. The temperature optimum for the catalytic reaction could produce the highest para n and ole n products at 400°C. Additionally, utilization of low-cost natural zeolite could improve pyrolysis reaction's performance from PP to produce yield ole n products from 39-62%. Statement Of NoveltyPlastics waste is threatening the environment due to its di culty in degradation. Pyrolysis of plastic by using catalysts would improve the oil products. Natural zeolites are low-cost minerals and are abundantly available throughout the world. The novelty of this study is to investigate the local natural zeolites in Indonesia as a cost-effective catalyst for application in polyole ns pyrolysis. The oil yield and products selectivity improved signi cantly after using the natural zeolites. The oil composition identi ed would be potentially utilized as chemicals and fuels. Finally, the catalytic pyrolysis of plastic waste using low-cost local catalysts will overcome the environmental problem and create the circular economy of plastic.

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Pengaruh Lokasi Zeolit Alam Bayah terhadap Adsorpsi Amonium: Studi Kinetika dan Kesetimbangan

Cited by 8 publications

References 5 publications

The characteristic of East Kalimantan’s low-rank coal as an adsorbent for Methylene Blue (MB) dye removal from simulated textile wastewater

The characteristic of East Kalimantan’s low-rank coal as an adsorbent for Methylene Blue (MB) dye removal from simulated textile wastewater

Utilization of Ende Natural Zeolite as a Catalyst in Polyethylene Pyrolysis from Plastic Waste

Pyrolysis of Polyolefins into Chemicals Using Low-Cost Natural Zeolites

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