Department of Bioprocess Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Johor, Bahru, Johor, Malaysia.
Department of Chemical Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Johor, Bahru, Johor, Malaysia.
Curr Microbiol. 2024 Aug 19;81(10):312. doi: 10.1007/s00284-024-03832-4.
Industrial and urban modernization processes generate significant amounts of heavy metal wastewater, which brings great harm to human production and health. The biotechnology developed in recent years has gained increasing attention in the field of wastewater treatment due to its repeatable regeneration and lack of secondary pollutants. Pseudomonas, being among the several bacterial biosorbents, possesses notable benefits in the removal of heavy metals. These advantages encompass its extensive adsorption capacity, broad adaptability, capacity for biotransformation, potential for genetic engineering transformation, cost-effectiveness, and environmentally sustainable nature. The process of bacterial adsorption is a complex phenomenon involving several physical and chemical processes, including adsorption, ion exchange, and surface and contact phenomena. A comprehensive investigation of parameters is necessary in order to develop a mathematical model that effectively measures metal ion recovery and process performance. The aim of this study was to explore the latest advancements in high-tolerance Pseudomonas isolated from natural environments and evaluate its potential as a biological adsorbent. The study investigated the adsorption process of this bacterium, examining key factors such as strain type, contact time, initial metal concentration, and pH that influenced its effectiveness. By utilizing dynamic mathematical models, the research summarized the biosorption process, including adsorption kinetics, equilibrium, and thermodynamics. The findings indicated that Pseudomonas can effectively purify water contaminated with heavy metals and future research will aim to enhance its adsorption performance and expand its application scope for broader environmental purification purposes.
工业和城市现代化进程产生了大量的重金属废水，这给人类的生产和健康带来了极大的危害。近年来开发的生物技术由于可重复再生和缺乏二次污染物，在废水处理领域越来越受到关注。假单胞菌作为几种细菌生物吸附剂之一，在重金属去除方面具有显著的优势。这些优势包括其广泛的吸附能力、广泛的适应性、生物转化能力、遗传工程转化的潜力、成本效益和环境可持续性。细菌吸附过程是一个涉及多种物理和化学过程的复杂现象，包括吸附、离子交换、表面和接触现象。为了开发出一种能够有效衡量金属离子回收和工艺性能的数学模型，有必要对参数进行全面研究。本研究旨在探讨从自然环境中分离出的高耐受力假单胞菌的最新进展，并评估其作为生物吸附剂的潜力。该研究调查了该细菌的吸附过程，研究了影响其效果的关键因素，如菌株类型、接触时间、初始金属浓度和 pH 值。通过利用动态数学模型，该研究总结了生物吸附过程，包括吸附动力学、平衡和热力学。研究结果表明，假单胞菌可以有效地净化重金属污染的水，未来的研究将旨在提高其吸附性能，并扩大其应用范围，以实现更广泛的环境净化目的。
