当前位置: X-MOL 学术J. Chem. Technol. Biotechnol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Particle size distribution as a major characteristic of domestic wastewater: implications for the modeling and design of membrane bioreactors
Journal of Chemical Technology and Biotechnology ( IF 3.4 ) Pub Date : 2020-12-10 , DOI: 10.1002/jctb.6645
Serdar Doğruel 1 , Derin Orhon 2
Affiliation  

This study reviews the evolution of the concept and the methodology of particle size distribution (PSD) analysis for sewage. Evaluation of experimental data indicated that the analytical approach started with an empirical identification of soluble, colloidal and supra‐colloidal organic matter. Then, it evolved into a sequential filtration and ultrafiltration methodology, yielding results useful enough to be an integral complement of respirometric chemical oxygen demand (COD) fractionation based on biodegradation characteristics. Default values could be defined for the distribution of COD fractions in terms of both size and biodegradation characteristics, which practically showed similar profiles, suggesting that PSD of COD could be directly used for model evaluation and design of activated sludge configurations. Size distribution of COD in sewage should be regarded as a prerequisite for activated sludge systems with a membrane module, mainly to assess the fate of COD fractions that would be entrapped and recycled back to the reactor by membrane filtration. © 2020 Society of Chemical Industry

中文翻译:

粒径分布是生活污水的主要特征:对膜生物反应器建模和设计的启示

这项研究回顾了污水处理的概念和粒度分布(PSD)分析方法的发展。对实验数据的评估表明,这种分析方法始于对可溶,胶体和超胶体有机物的经验鉴定。然后,它演变为顺序过滤和超滤方法,产生的结果足以作为基于生物降解特征的呼吸化学需氧量(COD)分离的不可或缺的补充。可以定义大小和生物降解特性方面的COD分数分布的默认值,该值实际上显示出相似的轮廓,这表明COD PSD可以直接用于模型评估和活性污泥构型的设计。污水中化学需氧量的大小分布应被认为是带有膜组件的活性污泥系统的前提,主要是评估通过膜过滤将截留并循环回反应器的化学需氧量的去向。©2020化学工业协会
更新日期:2020-12-10
down
wechat
bug