协同吸附与生物降解作用处理酸性蓝 113 染料的研究——以包埋于石墨烯氧化钙藻酸盐水凝胶珠中的肺炎克雷伯氏菌为生物吸附剂
A synergistic approach combining Adsorption and Biodegradation for effective treatment of Acid Blue 113 dye by Klebsiella grimontii entrapped Graphene Oxide-Calcium Alginate Hydrogel Beads.
机构信息
Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, Uttar Pradesh, India.
Department of Chemical Engineering, Indian Institute of Petroleum and Energy (IIPE), Visakhapatnam, Andhra Pradesh 530003, India.
出版信息
Bioresour Technol. 2023 Nov;387:129614. doi: 10.1016/j.biortech.2023.129614. Epub 2023 Aug 3.
This study investigated the degradation of Acid Blue 113 (AB 113) dye using Klebsiella grimontii entrapped Graphene Oxide-Calcium Alginate Hydrogel beads (KG-GO-CA) in a Fluidized Bed Bioreactor (FBBR) under varying inlet loading rates. The minimum fluidization velocity of the KG-GO-CA hydrogel beads in FBBR was found to be 0.15 mm/s. The KG-GO-CA beads showed a maximum removal efficiency of 94.6% at an inlet flow rate of 20 mL/h over 15 days. Reusability studies indicated a removal efficiency of 70.6 ± 2.5% for AB 113 after the 12 cycle. Langmuir adsorption isotherm showed the best fit (R = 0.98724) with model parameters of Q (203.83 mg/g) and K (0.0101 L/g). The study also confirmed that treated wastewater was more environmentally safe for domestic and commercial uses than untreated wastewater. The research highlights the potential use of KG-GO-CA hydrogel beads for removing dyes from wastewater.
本研究采用载有 Klebsiella grimontii 的石墨烯氧化物-海藻酸钠水凝胶珠（KG-GO-CA）在流化床生物反应器（FBBR）中，在不同入口负载率下对酸性蓝 113（AB 113）染料进行降解。在 FBBR 中，KG-GO-CA 水凝胶珠的最小流化速度被发现为 0.15 mm/s。在 15 天内，入口流速为 20 mL/h 时，KG-GO-CA 珠的最大去除效率达到 94.6%。重复使用研究表明，AB 113 在 12 个循环后去除效率为 70.6 ± 2.5%。Langmuir 吸附等温线显示出最佳拟合（R=0.98724），模型参数为 Q（203.83 mg/g）和 K（0.0101 L/g）。研究还证实，处理后的废水比未经处理的废水更适合家庭和商业用途，环境更安全。该研究强调了 KG-GO-CA 水凝胶珠在从废水中去除染料方面的潜在用途。
Zotero 插件