Iwa publishing mai 2021 (5 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware - This book presents a methodology for preparing scheduled desludging schemes in cities. Opening with a description of its definition and principles, this book outlines step by step the preparation of a scheduled desludging scheme. Coverage of the book includes a feasibility assessment of a city to implement a scheduled desludging program, getting everybody on the same principles, making the general concept, setting targets, designing the operational scheme, building capacity of the service provider, preparing the fleets, and preparing promotion activities for the desludging program. Several fecal sludge desludging options and the implication of each option are discussed in the book, including their financial implications. The book also presents methods to calculate the operational cost and how the cost can be used as the basis to determine the desludging tariff. This book was written based on the experience of USAID - IUWASH (Indonesia Urban Water and Sanitation and Health) program in assisting several Indonesian cities in preparing their mandatory desludging program. Some of Indonesia''s specific narratives and terms used in the original book have been adapted for the benefit of readers from other countries.…

Taschenbuch. Zustand: Neu. Neuware - Treatment and Valorisation of Saline Wastewater: Principles and Practice.

Taschenbuch. Zustand: Neu. Neuware - The world¿s largest demonstrator of a revolutionary energy system in desalination for drinking water production is in operation. MIDES uses Microbial Desalination Cells (MDC) in a pre-treatment step for reverse osmosis (RO), for simultaneous saline stream desalination and wastewater treatment. MDCs are based on bio-electro-chemical technology, in which biological wastewater treatment can be coupled to the desalination of a saline stream using ion exchange membranes without external energy input. MDCs simultaneously treat wastewater and perform desalination using the energy contained in the wastewater. In fact, an MDC can produce around 1.8 kWh of bioelectricity from the energy contained in 1 m3 of wastewater. Compared to traditional RO, more than 3 kWh/m3 of electrical energy is saved. With this novel technology, two low-quality water streams (saline stream, wastewater) are transformed into two high-quality streams (desalinated water, treated wastewater) suitable for further uses. An exhaustive scaling-up process was carried out in which all MIDES partners worked together on nanostructured electrodes, antifouling membranes, electrochemical reactor design and optimization, life cycle assessment, microbial electrochemistry and physiology expertise, and process engineering and control. The roadmap of the lab-MDC upscaling goes through the assembly of a pre-pilot MDC, towards the development of the demonstrator of the MDC technology (patented). Nominal desalination rate between 4-11 Lm-2h-1 is reached with a current efficiency of 40 %. After the scalability success, two MDC pilot plants were designed and constructed consisting of one stack of 15 MDC pilot units with a 0.4 m2 electrode area per unit.This book presents the information generated throughout the EU funded MIDES project and includes the latest developments related to desalination of sea water and brackish water by applying microbial desalination cells.…

Buch. Zustand: Neu. Neuware - Faecal sludge management is recognized globally as an essential component of city-wide inclusive sanitation. However, a major gap in developing appropriate and adequate management and monitoring for faecal sludge is the ability to understand and predict the characteristics and volumes of accumulated faecal sludge, and correlations to source populations. Since standard methods for sampling and analysing faecal sludge do not currently exist, results are not comparable, the actual variability is not yet fully understood, and the transfer of knowledge and data between different regions and institutions can be challenging and often arbitrary. Due to this lack of standard analytical methods for faecal sludge, methods from other fields, such as wastewater management, and soil and food science are frequently applied. However, these methods are not necessarily the most suitable for faecal sludge analysis, and have not been specifically adapted for this purpose. Characteristics of faecal sludge can be different than these other matrices by orders of magnitude. There is also a lack of standard methods for sampling, which is complicated by the difficult nature of in situ sampling, the wide range of onsite sanitation technologies and potential sampling locations, and the diverse heterogeneity of faecal sludge within onsite containments and within cities. This illustrates the urgent need to establish common methods and procedures for faecal sludge characterisation, quantification, sampling, and modelling. The aim of this book is to provide a basis for standardised methods for the analysis of faecal sludge from onsite sanitation technologies, for improved communication between sanitation practitioners, and for greater confidence in the generated data. The book presents background information on types of faecal sludge, methods for sample collection, health and safety procedures for handling, case studies of experimental design, an approach for estimating faecal sludge at community to city-wide scales, modelling containment and treatment processes, recipes for simulants, and laboratory methods for faecal sludge analysis currently in use by faecal sludge laboratories. This book will be beneficial for researchers, laboratory technicians, academics, students and sanitation practitioners.…

Taschenbuch. Zustand: Neu. Neuware - The Cultural Dynamics in Water Management from Ancient History to the Present Age focuses on exploring the idea of water culture and how water culture has been generated from water management and social life. It discusses the structure, attribute, type, and the dynamic mechanism of water culture theoretically. It also deals with its diversity and practice in water management with cases from twelve countries, geographically covering most continents of the world.This book is divided into five main sections which include the theoretical discussion of water culture, the historical water culture, the water culture and water management in indigenous societies, the cultural role in local water management, the water cultural practice in the present age using the case of water museum, etc. It is based on a historical and geographical approach to exploring the cultural dynamics in water management. It shows how people abide by their culture to manage water in ancient society and in indigenous, local, social, and urban society. This helps to provide an in-depth understanding of the cultural dynamics in water management to bridge the cultural idea of water management from history to the present and to the future.This book highlights that technical and engineered ways are not enough to solve water problems and achieve water sustainable management if we neglect the cultural dynamic role. Successful water management is always based on the culture from history and this is likely to continue so as to achieve better water management.…