Orhon Derin, Yucel Ayse Begum, Insel Guclu, Duba Seyda, Olmez-Hanci Tugba, Solmaz Bulent, Sözen Seval
The Science Academy, Istanbul 34349, Turkey.
Environmental Engineering Department, Faculty of Civil Engineering, Istanbul Technical University, Maslak 34469, Istanbul, Turkey.
Membranes (Basel). 2021 Jul 31;11(8):589. doi: 10.3390/membranes11080589.
A new model for the activated sludge process with membrane separation is presented, based on the effective filtration size. A new size threshold is imposed by the membrane module. The model structure requires a modified fractionation of the chemical oxygen demand and includes chemical oxygen demand fractions entrapped in the reactor or in the flocs as model components. This way, it offers an accurate mechanistic interpretation of microbial mechanisms taking place in membrane activated sludge systems. Denim processing wastewater was selected for model implementation, which emphasized the significance of entrapped fractions of soluble hydrolysable and soluble inert chemical oxygen demand responsible for better effluent quality, while underlining the shortcomings of existing activated sludge models prescribed for systems with conventional gravity settling. The model also introduced particle size distribution analysis as a new experimental instrument complementing respirometric assessments, for an accurate description of chemical oxygen demand fractions with different biodegradation characteristics in related model evaluations.
基于有效过滤尺寸，提出了一种带膜分离的活性污泥法新模型。膜组件设定了一个新的尺寸阈值。该模型结构要求对化学需氧量进行修正的分级，并将截留于反应器或絮凝物中的化学需氧量级分作为模型组分。通过这种方式，它对膜生物活性污泥系统中发生的微生物机制提供了准确的机理解释。选择牛仔布加工废水进行模型实施，这突出了截留的可溶性可水解和可溶性惰性化学需氧量级分对提高出水水质的重要性，同时也凸显了现有为具有传统重力沉降的系统规定的活性污泥模型的不足。该模型还引入了粒度分布分析作为一种新的实验手段来补充呼吸测量评估，以便在相关模型评估中准确描述具有不同生物降解特性的化学需氧量级分。
