A Study of the Removal of Pollutants Dyes from Aqueous Solution by Highly Active Low Cost Biosorbents

IF 0.4 Q4 ENVIRONMENTAL SCIENCES

Asian Journal of Water, Environment and Pollution Pub Date : 2023-07-21 DOI:10.3233/ajw230056

M. Hadi, H. M. Abdullah, A. I. Saber, Dheyaa Yahaia Alhameedi, Shadha Al Qaysi, A. T. Kareem

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引用次数: 0

Abstract

This research aims to remove the toxic and dangerous Eosin B (EB) dye by using one of the adsorption processes based on environmentally friendly surfaces prepared in a natural way without chemical activation as low-cost agricultural waste, like pomegranate peels, banana peels, clove sticks and eggshells. Several factors were used that affect the adsorption process. These materials have several advantages such as eco-friendly and having a high surface area to enhance the removal of pollutants. The studied parameter includes the contact time of an equilibrium EB dye which was achieved within 60 min, effect of different initial concentrations of EB dye (10-60 mg/L). The concentration of EB dye was found to increase with the adsorption efficiency (Qe mg/g) while the removal percentage E% decreased, whereas effect of adsorbents dosage was found to increase when the removal percentage (E%) of Eosin B dye increased from 45.55-88.99%, 40.67-82.23% (32.21-77.32%), and (25.34-75.22%). However, the adsorption capacity decreased from 95.66 to 43.43 mg/g, 92.34 to 40.11 mg/g, 90.32 to 37.11mg/g and 91.22-40.3 mg/g when the mass adsorbents of pomegranate peels, banana peels, clove sticks, and egg shells increased from 0.025 to 2 gm in the same order. Also, adsorption isotherms were studied and they obeyed the Freundlich isotherm models.

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高效低成本生物吸附剂去除水中污染物染料的研究

本研究旨在利用一种基于环境友好表面的低成本农业废弃物吸附工艺，如石榴皮、香蕉皮、丁香棒和蛋壳，以无化学活化的自然方式制备，去除有毒和危险的伊红B (EB)染料。考察了影响吸附过程的几个因素。这些材料有几个优点，如环保和具有高表面积，以加强污染物的去除。研究的参数包括接触平衡EB染料的时间(60min)、不同初始浓度(10 ~ 60mg /L)对EB染料的影响。EB染料的浓度随吸附效率(Qe mg/g)的增加而增加，去除率(E%)降低，而对伊红B染料的去除率(E%)从45.55 ~ 88.99%、40.67 ~ 82.23%(32.21 ~ 77.32%)和(25.34 ~ 75.22%)增加时，吸附剂用量的影响增大。石榴皮、香蕉皮、丁香棒、蛋壳的吸附量依次从0.025增加到2 mg，吸附量依次从95.66增加到43.43 mg/g、92.34增加到40.11 mg/g、90.32增加到37.11mg/g、91.22增加到40.3 mg/g。吸附等温线符合Freundlich等温线模型。

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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来源期刊

Asian Journal of Water, Environment and Pollution ENVIRONMENTAL SCIENCES-

CiteScore

1.00

自引率

20.00%

发文量

期刊介绍： Asia, as a whole region, faces severe stress on water availability, primarily due to high population density. Many regions of the continent face severe problems of water pollution on local as well as regional scale and these have to be tackled with a pan-Asian approach. However, the available literature on the subject is generally based on research done in Europe and North America. Therefore, there is an urgent and strong need for an Asian journal with its focus on the region and wherein the region specific problems are addressed in an intelligent manner. In Asia, besides water, there are several other issues related to environment, such as; global warming and its impact; intense land/use and shifting pattern of agriculture; issues related to fertilizer applications and pesticide residues in soil and water; and solid and liquid waste management particularly in industrial and urban areas. Asia is also a region with intense mining activities whereby serious environmental problems related to land/use, loss of top soil, water pollution and acid mine drainage are faced by various communities. Essentially, Asians are confronted with environmental problems on many fronts. Many pressing issues in the region interlink various aspects of environmental problems faced by population in this densely habited region in the world. Pollution is one such serious issue for many countries since there are many transnational water bodies that spread the pollutants across the entire region. Water, environment and pollution together constitute a three axial problem that all concerned people in the region would like to focus on.