### A Mathematical Model of a Commercial Thermophilic

The effort of this work to formulate a mathematical Journal of Biotechnology, Vol.5, 2006, pp.498- model for the biogas plant leads to the following 505 observations: [8] Food and Agriculture Organization of the United The rate of biogas production from a given reserve Nations,BiogasTechnology: A Training Manual is a function of the energy ...

Get price### A Mathematical Model of a Commercial Thermophilic

International Journal of Mechanical Engineering, ISSN:2051-3232, Vol.40, Issue.10 343 A Mathematical Model of a Commercial Thermophilic Biogas Plant Obiora E. Anisiji Chinonso H.Achebe Jeremiah L. Chukwuneke Paul C.Okolie Researcher, Department of Lecturer, Department of Lecturer, Department of Lecturer, Dept. of Engineering Research Mechanical Engineering, Nnamdi Mechanical Engineering ...

Get price### Integrated Process Modelling of a Thermophilic Biogas

2014-7-19 standard biogas plant layout may be derived by defining an array of components that is capable of executing the major processes (the homogenization or churning of the input mass, the heat rejection and the chemical reaction) involved in biogas production through anaerobic digestion of sewage mass. A typical physical model would seek to accomplish these processes in a minimum number of components. Apparently some existing models execute these processes in one or two components especially those used in gas generation for small scale household utilities like cooking, home heating and other domestic purposes. However, production of biogas for industrial application, power generation and other expanded purposes often requires large amount of biodegradable material whose effective digestion must be enhanced through some thermal and catalytic processes. This fact lead to adaptation of appropriate components designed to achieve this objective in a standard biogas production plant.

Get price### Integrated Process Modelling of a Thermophilic Biogas Plant

PDF this work developed a mathematical model of a biogas plant from a mechanistic point of view, for urban area clean energy requirement. It aimed at... Find, read and cite all the research ...

Get price### Integrated Process Modelling of a Thermophilic Biogas Plant

PDF On Jan 1, 2014, Chinonso Hubert Achebe published Integrated Process Modelling of a Thermophilic Biogas Plant Find, read and cite all the research you need on ResearchGate

Get price### ijstr Integrated Process Modelling of a

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract: this work developed a mathematical model of a biogas plant from a mechanistic point of view, for urban area clean energy requirement. It aimed at integrating thermodynamics; which deals with the direction in which a process occurs and Biochemical kinetics; which gives the understanding of the rates of ...

Get price### (PDF) Mathematical modelling and simulation for biogas ...

Some studies have successfully developed a mathematical model to predict biogas production [10, [16] [17][18], but none of them used cow dung as a single substrate for

Get price### Obiora Anisiji Nnamdi Azikiwe University - Academia

this work developed a mathematical model of a biogas plant from a mechanistic point of view, for urban area clean energy requirement. It aimed at integrating thermodynamics; which deals with the direction in which a process occurs and Biochemical kinetics; which gives the understanding of the rates of biochemical reaction.

Get price### MODELING OF THE BIOGAS PRODUCTION PROCESS- A

2012-12-3 mathematical model was proposed by Muha et al.. The model couples microbiological reactions with transport of process liquid and with the variation of population of the microorganisms living on the plastic tower packing of the reactor. Keshtarkar et al combined kinetic models with a two-region liquid mixing model for describing biogas production from cattle manure in a continuously stirred tank reactor. Vavilin et al. also studied the continuously stirred tank reactor and the combination of kinetic models

Get price### Unraveling the microbiome of a thermophilic biogas plant ...

2016-8-11 One of the most promising technologies to sustainably produce energy and to mitigate greenhouse gas emissions from combustion of fossil energy carriers is the anaerobic digestion and biomethanation of organic raw material and waste towards biogas by highly diverse microbial consortia. In this context, the microbial systems ecology of thermophilic industrial-scale biogas plants is poorly ...

Get price### (PDF) Mathematical modelling and simulation for biogas ...

Some studies have successfully developed a mathematical model to predict biogas production [10, [16] [17][18], but none of them used cow dung as a single substrate for methane production in an ...

Get price### Mathematical Modeling and Simulation of Anaerobic ...

2016-1-1 2. Mathematical modelling and simulation of batch reactor 2.1. Anaerobic Digestion Model No1 (ADM1) Because of the growing need in anaerobic digestion of solid waste, increased efforts in reducing biogas plant design cost and optimizing process operation is crucial. One way of doing this can be through mathematical modeling of the anaerobic ...

Get price### Modeling and simulation of existing biogas plants with ...

2017-6-20 Modeling and simulation of existing biogas plants with SIMBA#Biogas Författare Jonas Karlsson Nyckelord Biogas, SIMBA#Biogas, Anaerobic digestion Sammanfattning Abstract The main purpose of this project was an attempt to modulate and simulate two existing biogas plant, situated in Lidköping and Katrineholm,

Get price### Invited Paper A Simple Mathematical Model of the

2015-4-17 In this context, the use of mathematical models is a powerful tool for investigations and optimisation of the AD [2, 7, 12, 17]. ADM1 [2] is the most complex and powerful AD model. However, such types of models are very complex for practical use. That is why for particulate substrates more simple models are developed [7, 12, 17].

Get price### Empirical Validation of a Biogas Plant Simulation Model ...

1. Empirical details are described for the Bioenergi biogas plant on the island of Born-holm at the substation of Aakirkeby. The functioning and characteristics of the plant with all associated processes are outlined in detail. 2. The paper develops a biogas plant model that has been implemented in the MAT-

Get price### Biogas Plant Constructions - IntechOpen

2018-9-25 Biogas Plant Constructions M. Samer Cairo University, Faculty of Agriculture, Department of Agricultural Engineering, Egypt 1. Introduction The chapter concerns with the constructions of the commercial biogas plants as well as the small and household units. Furthe rmore, the chapter aims at pr oviding a clear description of

Get price### Modeling and optimization of a biogas plant for a demand ...

2018-2-15 One of the main problems is the fluctuating supply of wind and solar energy. Here biogas plants provide a solution, because a demand-driven supply is possible. Before running such a plant, it is necessary to simulate and optimize the process. This paper provides a new model of a biogas plant, which is as accurate as the standard ADM1 model.

Get price### Unraveling the microbiome of a thermophilic biogas plant ...

2016-8-11 One of the most promising technologies to sustainably produce energy and to mitigate greenhouse gas emissions from combustion of fossil energy carriers is the anaerobic digestion and biomethanation of organic raw material and waste towards biogas by highly diverse microbial consortia. In this context, the microbial systems ecology of thermophilic industrial-scale biogas plants is poorly ...

Get price### Mathematical modeling of solid-state anaerobic digestion ...

2015-12-1 Mathematical modeling is always an objective-driven exercise. In general, the three most common objectives in using a mathematical model are: (i) understanding system behavior and component interactions; (ii) quantitatively verifying a hypothesis; and (iii) predicting the behavior of the system in the future or under other similar circumstances.

Get price### Biogas production: current state and perspectives ...

2009-9-24 Biogas is a versatile renewable energy source, which can be used for replacement of fossil fuels in power and heat production, and it can be used also as gaseous vehicle fuel. Methane-rich biogas (biomethane) can replace also natural gas as a feedstock for producing chemicals and materials.

Get price### Designing of Small Scale Fixed Dome Biogas Digester for ...

base of the commercial biogas plant designs. With the help of scale-up techniques, we can assemble the mathematical model on software such as Chem CAD and MATLAB [32]. In the present study based on the lab-scale results, the biogas digester has been scaled-up and the parameters like volume and other dimensions have been calculated. 2.

Get price### Modeling of Thermophilic Anaerobic Digestion of

2021-3-30 Abstract—Anaerobic digestion model no. 1 (ADM1) model of international water association was applied to a lab-scale thermophilic anaerobic digestion process for the treatment of activated sludge wastes originating from a municipal wastewater treatment plant. The aim of

Get price### Enhancement of Thermophilic Biogas Production from

A sudden pH drops always inhibits the anaerobic digestion (AD) reactor for biogas production from palm oil mill effluent (POME). The pH adjustment of POME by oil palm ash addition and the biogas effluent recycling effect on the preventing of pH drop and change of the archaea community was investigated. The pH adjustment of POME to 7.5 increased the methane yield two times more than raw POME ...

Get price### Green Dairy Plant: Process Simulation and Economic ...

2020-10-7 of individual unit operations, mathematical modeling provides a useful insight. There are several commercial process simulators successfully used in the past for dairy plant modeling. Ribeiro and Andrade [19] used Aspen Plus to model a milk concentration system consisting of milk preheating, pasteurization, and evaporation.

Get price### Anaerobic Digestion of Renewable Biomass: Thermophilic ...

The production of biogas from plant waste or other organic materials is a feasible strategy in view of both ecology and economy . Fodder beet was chosen as the renewable biomass source for a thermophilic biogas fermentor because the European Union decreased the regulatory price for sugar beets in 2006, and therefore many farmers are looking for ...

Get price### Operational Parameters of Biogas Plants: A Review and ...

The biogas production technology has improved over the last years for the aim of reducing the costs of the process, increasing the biogas yields, and minimizing the greenhouse gas emissions. To obtain a stable and efficient biogas production, there are several design considerations and operational parameters to be taken into account. Besides, adapting the process to unanticipated conditions ...

Get price### A mathematical approach to predict the solids ...

2020-10-1 A fraction of the produced biogas (0.5 Nm 3 per cubic meter of reactor volume) was continuously recycled to the anaerobic reactor in order to improve the stirring conditions and to favor the stripping of the produced gases from the liquid phase, whereas another fraction of the produced biogas (0.2–0.3 Nm 3 /h per m 2 of membrane) was also ...

Get price### Biogas production from thermophilic anaerobic digestion

Biogas production is a millennial technology already applied in many fields, but still behind in terms of pulp and paper mill sludges. Due to the high moisture content of

Get price### A model for water uptake by plant roots - PubMed

We focus our model on annual plants, in particular the model will be applicable to commercial monocultures like maize, wheat, etc. The model is solved numerically, and the results are compared with approximate analytic solutions. The model predicts that as a result of water uptake by plant roots, dry and wet zones will develop in the soil.

Get price### Biogas CHP Cogeneration

2021-8-19 Biogas. Biogas is formed by the anaerobic decomposition of putrescible organic material. Biogas can either be used to generate electricity and heat via a combined heat and power gas engine, or can be cleaned to produce pure biomethane via biogas upgrading.. Clarke Energy is a distributor of Jenbacher gas engines which are designed for robust operation on difficult gases such as biogas ...

Get price