Microwave physicochemical activation: an advanced approach to produce activated biochar for palm oil mill effluent treatment

Waste Disposal & Sustainable Energy Pub Date : 2022-11-12 DOI:10.1007/s42768-022-00115-1

Kew Kiong Kong, Peter Nai Yuh Yek, How Sing Sii, Man Djun Lee, Rock Keey Liew, Su Shiung Lam

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引用次数: 1

Abstract

Empty fruit bunch (EFB) is an industrial waste that is abundantly available in Malaysia. Traditionally, EFBs were burned and dumped on the plantation site, resulting in global warming pollution from methane and carbon dioxide. In this study, the EFB was transformed into a high-surface area of activated biochar through a microwave physicochemical approach involving the combination of steam followed by a hydroxide mixture for palm oil mill effluent (POME) treatment. It was found that BET (Brunauer–Emmett–Teller) surface area and total pore volume of activated biochar were 365.60 m²/g and 0.16 cm³/g, respectively. The surface morphology of activated biochar revealed the formation of well-developed pores that can potentially be used as adsorbents to treat POME. The removal efficiency of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of POME achieved 75%–55%, respectively. This study offers insight into the transformation of industrial waste into value-added products for sustainable environmental remediation.

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微波物化活化:生产棕榈油厂废水处理用活性生物炭的先进方法

空果束(EFB)是一种在马来西亚大量可用的工业废物。传统上，EFBs被焚烧并倾倒在种植园现场，导致甲烷和二氧化碳污染全球变暖。在这项研究中，通过微波物理化学方法将EFB转化为高表面积的活性生物炭，该方法涉及蒸汽和氢氧化物混合物的组合，用于棕榈油厂废水(POME)处理。结果表明，活化生物炭的BET (brunauer - emmet - teller)表面积和总孔体积分别为365.60 m2/g和0.16 cm3/g。活化的生物炭的表面形态表明形成了发育良好的孔隙，可以作为吸附剂用于处理POME。POME对生化需氧量(BOD)和化学需氧量(COD)的去除率分别达到75% ~ 55%。本研究为工业废弃物转化为增值产品的可持续环境修复提供了新的思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Waste Disposal & Sustainable Energy

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