Zahra Shirani, Victor Carrasco-Navarro, Jouni Sorvari
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引用次数: 0
摘要
药品在人类健康和动物福利方面发挥着至关重要的作用。然而，污水处理厂通常对这些物质的去除效率有限，将药物归类为持久性环境污染物。以炭疽菌（Anthriscus sylvestris， ASBS）为原料，采用间歇式和固定床柱法研究了活性炭对四环素（TET）和环丙沙星（CIPF）的吸附效果。该吸附剂对TET的吸附量为402.75 mg g - 1，对CIPF的吸附量为582.18 mg g - 1，分别在1400 min和380 min后达到平衡。吸附过程遵循Langmuir和伪二阶模型，并受π-π电子给体-受体（EDA）相互作用、阳离子-π键和氢键等多重相互作用控制。此外，固定床柱研究证实了在不同浓度和流速下连续处理的潜力。总的来说，本研究展示了一种生产低成本吸附剂的实用方法，可以有效地减少水溶液中的药物污染。
Effective Adsorption of Pharmaceuticals by Plant Based-Activated Biochar
Pharmaceuticals play a crucial role in human health and animal well-being. However, wastewater treatment plants often have limited removal efficiency for these substances, classifying pharmaceuticals as persistent environmental contaminants. This study investigates activated biochar produced from Anthriscus sylvestris (ASBS) for the adsorption of tetracycline (TET) and ciprofloxacin (CIPF) using batch and fixed-bed column experiments. The adsorbent showed high adsorption capacities (402.75 mg g−1 for TET; 582.18 mg g−1 for CIPF) and equilibrium was achieved after 1400 and 380 min, respectively. Adsorption followed the Langmuir and the pseudo-second-order models and was governed by multiple interactions, such as π-π electron donor–acceptor (EDA) interactions, cation-π bond, and hydrogen bonding. Furthermore, fixed-bed column studies confirmed the potential for continuous treatment under various concentrations and flow rates. Overall, this study demonstrates a practical method for producing a low-cost adsorbent that can effectively reduce pharmaceutical contamination in aqueous solutions.
期刊介绍：
Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments.
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