Patel Himanshu
Department of Applied Science and Humanities, Pacific School of Engineering Kadodara Palsana Road (NH-8), V: Sanki, Ta. Palsana Surat-394305 Gujarat India
RSC Adv. 2020 Aug 26;10(52):31611-31621. doi: 10.1039/d0ra06422j. eCollection 2020 Aug 21.
Worldwide, each year the sugar industry generates bagasse fly ash (BFA) in the process of producing sugar including ethanol and jaggery. With the increasing average value of 2% consumption of sugar per annum, the quantity of solid waste BFA continuously increases and creates environmental problems. The valorisation of BFA is a convenient and sustainable means for decreasing the environmental burden. This paper aims to review the various important analyses and valorisation of BFA. BFA is a porous material and has oxides of several elements, such as silicon, aluminium, iron, sodium and other metals. Based on some of its excellent properties, untreated and modified BFA can represent an important source in different fields. Metals, dyes, petrochemicals, insecticides and other contaminants can be adsorbed using BFA, where the maximum adsorption capacities can be described using different adsorption variables and isotherms. It is convenient and a sustainable resolution to use traditional adsorbents for water treatment. This also decreases the environmental solid burden, eventually reducing greenhouse gas emissions. This ash has been incorporated into different construction materials, including cement and brick in different percentages to enhance their mechanical characteristics and durability, thus maintaining economic and environmental sustainability. Also, several products such as zeolites, silica, briquette catalyst and other important materials, which are promising energy sources, have been prepared using the BFA.
在全球范围内，制糖行业（包括生产乙醇和粗糖）每年在生产过程中都会产生蔗渣飞灰（BFA）。随着每年食糖消费量以2%的平均速度增长，固体废弃物BFA的数量持续增加，并引发环境问题。对BFA进行增值利用是减轻环境负担的一种便捷且可持续的方式。本文旨在综述BFA的各种重要分析及增值利用情况。BFA是一种多孔材料，含有硅、铝、铁、钠等多种元素的氧化物以及其他金属。基于其一些优异特性，未经处理和经过改性的BFA在不同领域都可成为重要来源。BFA可用于吸附金属、染料、石化产品、杀虫剂及其他污染物，其最大吸附容量可用不同的吸附变量和等温线来描述。使用传统吸附剂进行水处理既便捷又可持续。这也减轻了环境固体废弃物负担，最终减少温室气体排放。这种灰分已被按不同比例掺入包括水泥和砖块在内的各种建筑材料中，以增强其机械性能和耐久性，从而保持经济和环境的可持续性。此外，还利用BFA制备了几种产品，如沸石、二氧化硅、型煤催化剂及其他有望成为能源的重要材料。
