In view of the growing importance of integrated and plant-wide modelling of wastewater treatment plants, this work reviews, applies and compares two transforming/interfacing methods by connecting anaerobic digestion and activated sludge models. The two methods are systematic approaches to transform state variables of one model to another and vice versa. The theory of the first method was presen...

با توجه به رشد بالای جمعیت در جهان و نیاز اطمینان از امنیت غذایی، افزایش تولید واحد سطح محصولات زراعی به‌منزلة راهبردی اساسی حل مسئلة تأمین غذا به‌شمار می‌رود. سوی دیگر، وجود محدودیت زیرکشت پایین‌بودن میانگین عملکرد برخی کشاورزی مانند گندم کشور، محصول می‌تواند راهکاری عملی پاسخ کشور محسوب شود. یکی مهم‌ترین بیماری‌های فوزاریوم است که، نقش پیش‌بینی این بیماری جلوگیری کاهش بهره‌وری محصول، مدل‌هایی...

In this paper we propose a methodology to determine the structure of the pseudo-stoichiometric coefficient matrix K in a mass balance based model, i.e. the maximal number of biomasses that must be taken into account to reproduce an available data set. It consists in estimating the number of reactions that must be taken into account to represent the main mass transfer within the bioreactor. This...

Fermentation of sugars for hydrogen production has received increasing interest as a “green fuel” process. Models describing products formation from sugar fermentation has been the focus, applied to generalize anaerobic digestion models. Such models have therefore been in continuous development. Beginning from fixed stoichiometry values as in ADM1 [1] (the most common platform in anaerobic dige...

A multispecies, two- and three-dimensional model was developed, based on a previously published planar biofilm model, and the biochemical structure of the ADM1. Several soluble substrates diffuse and react in the granule. Local pH is calculated from acid-base equilibria and charge balance. The model uses individual-based representation of biomass particles within the granule (biofilm), and desc...

This paper describes an action model to measure the performance of libraries. The proposed model is based in the CAF – Common Assessment Framework, the Balanced Scorecard and the Analytic Hierarchy Process (AHP). The recommended performance indicators are based in the ISO 11620:1998, Adm1:2003 and ISO 2789:2003. The relative weights for each performance measure are calculated using the AHP. The...

Advanced dynamic anaerobic digestion models, such as ADM1, requires both detailed organic matter characterisation and intimate knowledge of the involved metabolic pathways. In the current study, a methodology for municipal sludge characterization previously developed is used to describe two key parameters: biodegradability and bioaccessibility of organic matter. The methodology is based on coup...

Primljeno (Received): 2012-02-21 Prihvaćeno (Accepted): 2012-05-15 Original scientific paper The Nash-Sutcliffe model efficiency coefficient (ENSC) has been modified in order to assess the quality of simulations compared to observed data from the mesophilic monofermentation of grass silage. By applying the ENSC it is not only possible to find parameter sets with the best fit, but also to analyz...