Lorini Laura, Rossi Marta Maria, Di Franca Maria Letizia, Villano Marianna, Matturro Bruna, Petrangeli Papini Marco
Department of Chemistry, University of Rome, La Sapienza, Piazzale Aldo Moro 5, 00185 Rome, Italy.
Water Research Institute, IRSA-CNR, Via Salaria km 29,300, 00015 Monterotondo, Rome, Italy.
Bioengineering (Basel). 2025 Feb 4;12(2):148. doi: 10.3390/bioengineering12020148.
Actions for improving water quality are critical and include the remediation of polluted groundwater. The effectiveness of the remediation strategy to remove contamination by chlorinated solvents may be increased by combining physicochemical treatments (i.e., adsorption) and biological degradation (i.e., biological reductive dechlorination (BRD)). Recent studies have shown the potentialities of bio-based materials for bioremediation purposes, including polyhydroxybutyrate (PHB), a biodegradable microbial polyester tested as a fermentable source of slow-release electron donors. Further, a low-cost biochar derived from the pyrolysis of pinewood waste (PWB), used as sorbent material, has recently been proposed to accelerate reductive microbial dehalogenation. Here, we propose a coupled adsorption and biodegradation (CAB) process for trichloroethylene (TCE) removal in a mini pilot-scale reactor composed of two reactive zones, the first one filled with PHB and the second one with PWB. This work aimed to evaluate the performance of the CAB process with particular regard to the effectiveness of the PWB in sustaining the biofilm, mostly enriched by . The main results showed the CAB system treated around 1300 L of contaminated water, removing 102 mg TCE per day. Combining PHB and PWB had a positive effect on the growth of the dechlorinating community with a high abundance of
改善水质的行动至关重要，包括对受污染地下水的修复。通过结合物理化学处理（即吸附）和生物降解（即生物还原脱氯（BRD）），可以提高修复策略去除氯代溶剂污染的有效性。最近的研究表明了生物基材料用于生物修复目的的潜力，包括聚羟基丁酸酯（PHB），一种作为缓释电子供体的可发酵来源进行测试的可生物降解微生物聚酯。此外，一种由松木废料（PWB）热解得到的低成本生物炭，用作吸附剂材料，最近被提议用于加速微生物还原脱卤。在此，我们提出了一种在由两个反应区组成的小型中试规模反应器中去除三氯乙烯（TCE）的耦合吸附和生物降解（CAB）工艺，第一个反应区填充PHB，第二个反应区填充PWB。这项工作旨在评估CAB工艺的性能，特别是PWB在维持主要由……大量富集的生物膜方面的有效性。主要结果表明，CAB系统处理了约1300升受污染水，每天去除102毫克TCE。将PHB和PWB结合对脱氯群落的生长有积极影响，其具有高丰度的……
