水溶性烯酸基聚合物的吸附和对活性污泥的作用
Janja Novak1, Ula Putar1, Gabriela Kalčíková1,2
1Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia.
Environmental toxicology and chemistry
|June 9, 2025
概括
合成聚合物,如基于烯酸的聚合物,很容易附着在活性污泥上,这是废水处理的关键组成部分. 它们的存在会影响污泥沉积,但不会影响整体呼吸,这表明它们在环境中持续存在.
科学领域:
- 环境化学环境化学
- 环境微生物学 环境微生物学
- 聚合物科学 聚合物科学
背景情况:
- 合成水溶性聚合物在各个行业广泛使用,并且经常进入废水流.
- 了解这些聚合物的环境命运,特别是它们与废水处理元件 (如活性污泥) 的相互作用,至关重要.
研究的目的:
- 研究基于烯酸的同聚合物和共聚物在活性污泥上的吸附,作用和命运.
- 评估这些聚合物的对关键活性污泥过程的影响,包括沉积和呼吸.
主要方法:
- 进行了吸附实验,以量化活性污泥的聚合物吸收.
- 用弗洛伊德利希等温模型来描述吸附过程.
- 在聚合物存在的情况下测量了活性污泥沉积率和内源和外源呼吸率.
主要成果:
- 亚克力酸的同聚合物和共聚合物都显示出对活性污泥的快速和高吸附率 (>70%).
- 吸附过程遵循弗洛伊德利希等温模型.
- 同聚合物吸附显著影响了活性污泥沉积率,而呼吸率基本上不受影响,除了对外体呼吸的剂量依赖性影响.
结论:
- 基于烯酸的聚合物对活性污泥具有很强的粘附性,这表明它们可能与其他环境生物表面相互作用.
- 这些发现凸显了对这些广泛使用的合成聚合物对环境相互作用和最终命运的进一步研究的需要.
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