Have you ever asked yourself; what are the secrets of modelling wastewater treatment plants WWTPs? How to model WWTP? What is the meaning of modelling and simulation? Is it easy? How to start? What are the tools to be used? What is the information you need? What is the software applicable? What are the limitations! Here’s the solution. This thesis provides quick and advanced methods to help you model WWTPs. Try and don’t hesitate. After while, you can model any WWTP easily! You will be a unique pioneer in this field.
This book gives an overview of the modelling and design of biological wastewater treatment for undergraduate and graduate students in Environmental engineering. A real case study from one of the wastewater treatment plants in Norway will be presented in this manuscript. The first section of this book will describe the field of study and the different variants of biological processes. The second section will talk about the experimental setup. Presentation of the results and discussions are covered in the third section. Finally, simulation with AQUASIM software and design calculations of activated sludge and aerobic biofilm reactor will be elaborated in the two last sections.
The search for possibilities to save energy and find new energy production opportunities is an important aspect in discussing the climate protection. Up to now, the heat which is stored in wastewater is not used. Wastewater heat recovery offers a resource saving, clean and cheap option of energy production in urban areas. In this thesis the function and structure of wastewater treatment plants are represented as well as the state of art of wastewater treatment in Austria and Finland. Furthermore, the possibilities of energy production and their impacts and costs in sewage plants are explained. The sewage plants in Helsinki and Turku are the first two wastewater treatment plants which use heat pump stations to produce energy. Austria has a big capacity in recovering heat from wastewater. According to the state of art, there are three possibilities of energy production from wastewater. Furthermore, environmental topics of the oil and gas industry are included as a sepearte part in this book g.e. cost of environmental incidents, impacts of produced water, biodiversity and water footprint.
System Simulation Techniques with MATLAB and Simulink comprehensively explains how to use MATLAB and Simulink to perform dynamic systems simulation tasks for engineering and non-engineering applications. This book begins with covering the fundamentals of MATLAB programming and applications, and the solutions to different mathematical problems in simulation. The fundamentals of Simulink modelling and simulation are then presented, followed by coverage of intermediate level modelling skills and more advanced techniques in Simulink modelling and applications. Finally the modelling and simulation of engineering and non-engineering systems are presented. The areas covered include electrical, electronic systems, mechanical systems, pharmacokinetic systems, video and image processing systems and discrete event systems. Hardware-in-the-loop simulation and real-time application are also discussed. Key features: Progressive building of simulation skills using Simulink, from basics through to advanced levels, with illustrations and examples Wide coverage of simulation topics of applications from engineering to non-engineering systems Dedicated chapter on hardware-in-the-loop simulation and real time control End of chapter exercises A companion website hosting a solution manual and powerpoint slides System Simulation Techniques with MATLAB and Simulink is a suitable textbook for senior undergraduate/postgraduate courses covering modelling and simulation, and is also an ideal reference for researchers and practitioners in industry.
Endocrine Disruption Chemicals (EDCs) are persistent against conventional wastewater treatment method. It was ascertained that ozone can effectively degrade and mineralize most of the EDCs. For this, ozonolysis of a model EDC, Diclofenac sodium (DFS) has been carried out in sami-batch process to get necessary kinetics. With this, a simulation model has been developed for flow ozone membrane reactor. Because this reactor can simultaneously mineralize and separate EDCs effectively from water and wastewater. Afterwards a model simulation has been carried out for ozone membrane reactor to predict its performance. Model simulation predicted mineralization of EDC (DFS) from water and wastewater. This work will be helpful for water treatment industries to develop suitable membrane (i.e., characteristic parameters of membrane such as efficiency, molecular weight cut-off and enhancement) to treat EDCs from water and wastewater.
The need to protect the natural environment from pollution from point sources has fuelled the development of mathematical models for predicting the performance of such systems. Previous attempts at mathematical modeling of wastewater treatment have focused on the use of mechanistic models which rely on the detailed specification of the physics of the various biochemical reactions and their numerous parameters. This is a problem because the huge amounts of data needed for calibrating such models are often unavailable, which together with imprecision in model structure identification, results in uncertainties. This book has catalogued a new approach to the problem using artificial intelligence methods that are essentially data driven. In particular, the book through practical case studies has demonstrated the feasibility of AI techniques such as ANN, Fuzzy logic and hybrids of these in wastewater management. The book will be suitable for students and researchers in environmental engineering, practitioners and consultants on wastewater treatment projects, and indeed anyone faced with the task of analyzing, and understanding embedded knowledge in large arrays of data.
Unlike developed countries, lack of financial and mechanical resources and abortive institutional structures in developing countries lead to the failure of most of the environmental development projects. One such example is wastewater management projects. Wastewater management is still in its early stages in Lebanon like many other developing countries due to the nonoperational wastewater treatment plants. Wastewater is either discharged into sea, rivers or on open lands without treatment. Also, the the absence of effective wastewater management practices and delay in implementation has led the local communities to plan and implement their own arrangements for effective wastewater treatment facilities. This, however, raise a crucial question about the effectiveness of these facilities. This book aims to assess the effectiveness of existing wastewater treatment systems by testing effluent quality of the treated wastewater discharge, taking Chouf Caza in Lebanon as an example. Furthermore, the discussion comprehends the applicability of the potential wastewater treatment systems for small dispersed rural communities by analyzing and discussing the results.
Water pollution is major problem for industries like tannery and textile, because they discharge large amount of wastewater. Adsorption based water treatment plant is a first choice for industrial application. This book describes the different steps for developing an adsorption based wastewater treatment process. Removal of hexavalent chromium from tannery effluent and reactive dyes from textile effluent has been described in this book. This book also elucidates the method of optimization using response surface methodology. A software MINITAB was used for this purpose. Construction and utilization of neural network model has been described in this work. Neural network model was developed using MATLAB. Readers will get a clear idea about the modeling, simulation and optimization of wastewater treatment plant.
This work aims to find ways to improve the environmental and energy performance of three small wastewater treatment plants (WWTP). These WWTP, placed in Sintra municipality, were the object of case studies regarding corrective measures or solutions that could improve their environmental and energy performance. The evaluation of the settings of these three WWTP was obtained by an audit exercise performed with a specific methodology for small WWTP. After the evaluation were proposed corrections and solutions for all improvement opportunities. A state of art on wastewater treatment technology and sludge treatment and valorisation options were also objectives of this work, as well as an overview of the main legislations and policies of E.U. in particular the situation of Portugal on this matters.
In Industrial zones it is very difficult for small scale industries to treat strong wastewater in their premises hence come the concept of Common effluent treatment plant (CETP) in 20th century. On this note several number of CETPs in India is been treating industrial wastewater. The Conventional Treatment process existing in majority of Common Effluent Treatment plants in India are not capable of bringing the effluent parameters under required discharging norms. Hence there is an urgent requirement for tertiary treatment options for Common treatment processes in order to deal with the high strength of effluent loading. In this present book 17 different Physico-Chemical technologies including Oxidants and Filtration technologies are been studied on an extremely cocktail effluent of CETP at Vapi. Which comprises of wastewater from different industries like Textile, Chemical, Pharmaceutical, Pesticides, Paper & Pulp and Dyes& Colour.
Handbook of Water and Wastewater Treatment Technologies,
The removal of suspended solids from wastewater is considered to be one of the most important topics in wastewater treatment plants as it represents a major subject in the quality control of the wastewater being produced especially for the countries located in the Middle East due to the nature of the wastewater produced there. This book offers a new method to accelerate the removal process of the suspended solids by using the electromagnetic field. This method produced a major improvement in the time required for the wastewater to remain in the treatment units which will decrease the time needed for treatment process and make it more efficient.
Being familiar with characteristics of industrial town effluents from various wastewater treatment units, which have high qualitative and quantitative variations and more uncertainties compared to urban wastewaters, plays very effective role in governing them. With regard to environmental issues, proper operation of wastewater treatment plants is of particular importance that in the case of inappropriate utilization, they will cause serious problems. In order to achieve a better and efficient control over the operation of an industrial wastewater treatment plant (WWTP), powerful mathematical tool can be used that is based on recorded data from some basic parameters of wastewater during a period of treatment plant operation. For the first time in Iran, the multilayer perceptron feed forward neural network with a hidden layer and stop training method was used to predict quality parameters of the industrial effluent. Principal Component Analysis (PCA) technique was applied to improve performance of generated models of neural networks. Also, factor analysis method were used to determine the effective parameters that improve the models accuracy and efficiency.
Aeration is one of the important processes employed in activated sludge process of the biological treatment units of wastewater. In this process the level of dissolved oxygen in the effluent is raised to the required amounts to decompose organic matters present in the effluent and thereby to reduce the BOD (biochemical oxygen demand) of the effluent by a physical means called “aeration process”. The aeration process consumes as much as 60-80% of total power requirements of wastewater treatment plants. Therefore, the efficiency in design of aeration process is required so that wastewater treatment and its power consumption can be economized.