A review of ADM1 extensions, applications, and analysis: 2002–2005

Abstract

Since publication of the Scientific and Technical Report (STR) describing the ADM1, the model has been extensively used, and analysed in both academic and practical applications. Adoption of the ADM1 in popular systems analysis tools such as the new wastewater benchmark (BSM2), and its use as a virtual industrial system can stimulate modelling of anaerobic processes by researchers and practitioners outside the core expertise of anaerobic processes. It has been used as a default structural element that allows researchers to concentrate on new extensions such as sulfate reduction, and new applications such as distributed parameter modelling of biofilms. The key limitations for anaerobic modelling originally identified in the STR were: (i) regulation of products from glucose fermentation, (ii) parameter values, and variability, and (iii) specific extensions. Parameter analysis has been widespread, and some detailed extensions have been developed (e.g., sulfate reduction). A verified extension that describes regulation of products from glucose fermentation is still limited, though there are promising fundamental approaches. This is a critical issue, given the current interest in renewable hydrogen production from carbohydrate-type waste. Critical analysis of the model has mainly focused on model structure reduction, hydrogen inhibition functions, and the default parameter set recommended in the STR. This default parameter set has largely been verified as a reasonable compromise, especially for wastewater sludge digestion. One criticism of note is that the ADM1 stoichiometry focuses on catabolism rather than anabolism. This means that inorganic carbon can be used unrealistically as a carbon source during some anabolic reactions. Advances and novel applications have also been made in the present issue, which focuses on the ADM1. These papers also explore a number of novel areas not originally envisaged in this review.

Anaerobic digestion modeling: from one to several bacterial populations

“…Initial work with ADM1 (to 2005) was reviewed in a workshop in Copenhagen (Batstone et al, 2006), and a number of specific limitations were identified, including: glucose fermentation models, physicochemical system modeling, input characterization, parameter variation and validation in a broader context. Many of the 30 papers presented at this workshop addressed some of these limitations, and subsequent work has significantly advanced in at least the second two areas.…”

“…Much of this work has been done by the Benchmarking Task group to interface ASM1 and ADM1 states. Copp et al, (2003) proposed the first type of this model, while Nopens et al, (2007) proposed an updated version, [196] Ramírez / Anaerobic Digestion Modeling: from One to Several Bacterial Populations Tecno Lógicas which has also been used as an input model (Batstone et al, 2006). These interface models have evolved significantly in terms of applicability and accuracy (Ikumi et al, 2013).…”

Modeling and simulation of lab-scale anaerobic co-digestion of MEA waste

“…The anaerobic digestion model No.1 (ADM1) is a sophisticated model generated by the IWA Task Group for Mathematical Modeling of Anaerobic Digestion Processes (Batstone et al, 2002). The model includes 26 dynamic state variables, 19 biochemical and 3 gas-liquid transfer kinetic processes.…”

“…The model includes 26 dynamic state variables, 19 biochemical and 3 gas-liquid transfer kinetic processes. It describes the AD processes of complex particulates through disintegration, hydrolysis, acidogenesis, acetogenesis to methanogenesis (Batstone et al, 2002). Disintegration is a physical process and the rest four biochemical processes are catalyzed by intra-or extracellular enzymes.…”

Modelling of a batch anaerobic digestion

“…In total, 19 processes, 24 components, and 56 relative stoichiometric and kinetic parameters were assumed for biological processes, while additional processes and parameters were determined for physico-chemical processes. The ADM1 has been implemented for the modelling of anaerobic treatment of a wide range of waste streams in continuous reactors 3 …”