Remediation of Brewery Wastewater Using Green Synthesized Nano-Particles

Journal of Applied Sciences and Environmental Management Pub Date : 2024-02-28 DOI:10.4314/jasem.v28i2.28

S. O. Owolabi, A. Adeleke, O. O. Fadipe, J. T. Adeleke, A. P. Onifade, O. E. Isola, F. D. Bamisaye, A. Sangoremi

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Abstract

The brewing industry consumes a large amount of water needed for brewing, rinsing, and cooling purposes, and therefore produces huge amount of effluents. Therefore, the objective of this paper was to evaluate the use of Moringa oleiferra (MO) powder and synthesized 1.0 and 2.0 g TiO2NPs as green synthesized nano-particles for the remediation of brewery wastewater using standard methods. The raw wastewater sample characterization for pH, BOD, COD, Lead and coliform count were: 7.26, 935, 1045, 0.083 mg/L and 136 cfu/100 mL respectively. Results of the UV – Visible spectrophotometer showed the maximum wavelength of 275, 275, 278 and 282.50 nm for 5:20, 10:20, 15:20, 20:20 of MO and TiO2 ratio respectively, while the FTIR results show the presence of oxygen surface complex groups such as hydroxyl and carbonyl. The SEM reveals a porous surface area accompanied by several wide opening pores of different sizes and shapes, while EDX shows the concentration of titanium, Sulphur and silicon in percent weight; 85.79, 2.96 and 1.46 % respectively. Results of the wastewater treated with 50 g defatted M. oleiferra revealed the removal efficiency of 47, 93.2, 56.2, 18, 31.3, 97, 76.1, 81 and 71% for Turbidity, COD, EC, Nitrate, Nitrite, BOD, TS, TDS and TSS respectively. Results of wastewater treated with 1.0 g of TiO2 NPs showed the removal efficiency of 97.8, 94.64, 53.5, 34.2 and 35.1% for COD, BOD, EC, Nitrate and Nitrite respectively. That of 2.0 g of TiO2 NPs showed the removal efficiency of 67, 58, and 87% for Cu, Pb, and Ag respectively. Conclusively, M. oleiferra and varying proportions of green synthesized TiO2 NPs were effective in the remediation of the wastewater from brewery industry as it improves its physicochemical properties, but not so much for the heavy metal concentration.

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利用绿色合成纳米粒子修复啤酒厂废水

酿造业在酿造、冲洗和冷却过程中需要消耗大量的水，因此会产生大量的废水。因此，本文旨在评估使用辣木（MO）粉末和合成的 1.0 克和 2.0 克 TiO2NPs 作为绿色合成纳米颗粒，采用标准方法对酿造废水进行修复。原废水样品的 pH 值、生化需氧量、化学需氧量、铅含量和大肠菌群数分别为分别为 7.26、935、1045、0.083 mg/L 和 136 cfu/100 mL。紫外可见分光光度计的结果显示，MO 和 TiO2 的比例为 5:20、10:20、15:20、20:20 时，最大波长分别为 275、275、278 和 282.50 nm，而傅立叶变换红外光谱结果显示存在氧表面络合基团，如羟基和羰基。扫描电子显微镜（SEM）显示了多孔的表面区域，并伴有多个大小和形状各异的大开口孔隙，而电子衍射X 显示了钛、硫和硅的浓度，重量百分比分别为 85.79%、2.96% 和 1.46%。用 50 克脱脂油菜籽处理废水的结果显示，浊度、化学需氧量、电解质、硝酸盐、亚硝酸盐、生化需氧量、总悬浮微粒、总溶解氧和总悬浮微粒的去除率分别为 47%、93.2%、56.2%、18%、31.3%、97%、76.1%、81% 和 71%。用 1.0 克二氧化钛纳米粒子处理废水的结果显示，对 COD、BOD、EC、硝酸盐和亚硝酸盐的去除率分别为 97.8%、94.64%、53.5%、34.2% 和 35.1%。2.0 克二氧化钛纳米粒子对铜、铅和银的去除率分别为 67%、58% 和 87%。总之，M. oleiferra 和不同比例的绿色合成 TiO2 NPs 对酿造业废水的修复是有效的，因为它改善了废水的理化性质，但对重金属浓度的影响不大。

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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Journal of Applied Sciences and Environmental Management

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