wastewater management Articles
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Assessing material flows in urban systems: an approach to maximize the use of incomplete data sets
Data scarcity and uncertainty are the main limiting factors for an integral evaluation of the urban water and wastewater management system (WWMS) in developing countries. The present research shows an approach to use incomplete data sets to analyse the flows of water and nitrogen and to make an integral evaluation of the WWMS at a case study city. By means of data validation and model ...
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Major urban water and wastewater systems in Minoan Crete, Greece
During the Minoan era a number of remarkable developments occurred on the Greek island of Crete which have been widely recognized. However, one of the salient characteristics was the architectural and hydraulic function of its water supply, sewerage, and drainage systems in the Minoan palaces, cities, and other settlements. It might be inferred, therefore, that Minoan master craftsmen in Bronze ...
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A brief history of water supply and wastewater management in ancient Greece
The evolution of urban water management in ancient Greece begins in Crete during the Middle Bronze and the beginning of the Late Bronze Ages (ca. 2000–1500 B.C.) when many remarkable developments occurred in several stages as Minoan civilization flourished on the island. One of its salient characteristics was the architectural and hydraulic function of its water supply and sewerage systems in the ...
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Towards sustainable sanitation – the HAMBURG WATER Cycle in the settlement Jenfelder Au
One of the largest urban development projects at present in Hamburg is the conversion of former military barracks into a new residential area for about 630 households, called Jenfelder Au. The urban design concept for this 35 ha area follows a high quality approach to develop a carbon-neutral, attractive neighbourhood for approx. 2,000 inhabitants abundant with green space and urban water. ...
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Water reuse in the Arab world : from principle to practice - voices from the field
Arab nations have historically played a lead role in the development of innovative water solutions with noteworthy achievements including global leadership in desalination, dam infrastructure and drip irrigation. Nonetheless, the challenge of optimizing water management remains an important priority across the Arab world. Until recently, planned wastewater management in the Arab region focused on ...
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Making urban excreta and wastewater management contribute to cities' economic development: a paradigm shift
Cities, as engines of economic growth and social development, require large quantities of natural resources to meet their inhabitants' economic and social needs. Good infrastructure and reliable service provision are key to sustaining cities' development. In this regard, they enhance investment opportunities and service access to vulnerable populations. In response to the lack of sanitation ...
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Urban waste- and stormwater management in Greece: past, present and future
Urban wastewater and storm management has a long history which coincides with the appearance of the first organized human settlements (ca. 3500 BC). It began in prehistoric Crete during the Early Bronze Age (ca. 3200 BC) when many remarkable developments occurred in several stages known as Minoan civilization. One of its salient characteristics was the architecture and function of its ...
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A primer on energy efficiency for municipal water and wastewater utilities
This primer is concerned with energy use and efficiency of network-based water supply and wastewater treatment in urban areas. It focuses on the supply side of the municipal water cycle, including the extraction, treatment, and distribution of water, and collection and treatment of wastewater-activities which are directly managed by Water and Wastewater Utilities (WWUs). The main challenges to ...
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Characteristics and performance of small and medium wastewater treatment plants in Greece
Wastewater management in Greece is being regulated by the Urban Waste Water Treatment Directive (UWWTD) and as a result many wastewater treatment plants (WWTPs) have been constructed during the last 30 years and are in operation. The present work aims to outline the progress regarding the implementation of the specific environmental policy, present deficiencies and future challenges, while an ...
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Urban semicentralised supply and disposal: innovations and challenges for Hanoi, Vietnam
The development of the world population is characterised by two trends: absolute population growth and rapid urbanisation. In the urban region of Hanoi, the capital of the Socialist Republic of Vietnam, extensive urbanisation contributes to a deficient provision of infrastructure causing environmental degradation and health problems for large parts of the population. The protection of the ...
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Multicriteria performance analysis of an integrated urban wastewater system for energy management
The optimization and management of an integrated urban wastewater system is a complex problem involving many processes and variables. The possible control options are defined by several management strategies that may differently impact the economic, operational or environmental performance of the system. The present paper aims to contribute to the environmental and energy sustainability of ...
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Water management in cities of the future using emission control strategies for priority hazardous substances
Cities of the future face challenges with respect to the quantity and quality of water resources, and multiple managerial options need to be considered in order to safeguard urban surface water quality. In a recently completed project on ‘Source control options for reducing emissions of Priority Pollutants’ (ScorePP), seven emission control strategies (ECSs) were developed and tested within a ...
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Organica Solutions for Urban Developments - Case Study
To reduce the environmental and economic impact of the project, the property developer searched for a more sustainable and efficient option for managing the wastewater needs of the community. CHALLENGE As the world continues to urbanize, it has become increasingly important to move away from some well-established patterns of city growth. Sustainable urban real estate development is becoming ...
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Understanding Turbidity of Wastewater
What is Turbidity? Turbidity, in the context of wastewater, refers to the cloudiness or haziness of the water caused by the presence of suspended particles such as clay, silt, and organic matter. These particles scatter and absorb light, making the water appear cloudy. Turbidity is often an indicator of the overall water quality and can impact aquatic ecosystems and human health. Importance of ...
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Water Quality Standards in Australia
The National Water Quality Management Strategy (NWQMS) is the body through which water quality standards are developed in Australia. NWQMS provides an approach to water quality management that is agreed on nationally. It implements aspects such as adapting the guideline to suit local conditions, utilizing current scientific information to influence policy and decision-making, sharing information ...
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Extending the water safety plan concept to the urban water cycle
The urban water cycle (UWC) is often managed by several stakeholders dealing with specific components of the cycle such as water supply, wastewater systems and water bodies management. Therefore, risk management in the UWC benefits from an integrated approach to incorporate the interdependencies between elements. The water cycle safety plan (WCSP) provides a common risk management framework for ...
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Research project to remove microplastics from the water cycle
INVENT Umwelt- und Verfahrenstechnik AG is a project partner in the BMBF project to remove microplastics from the water cycle. Water is an indispensable element and the basis of life. The consequence of the increasing use of plastics for over 60 years is an undesired input into the environment. Small plastic particles (microplastics) from households and urban areas can enter the water cycle. ...
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5 Reasons Why Water Treatment Matters for Business and the Environment
Clean water access might be a basic human right on paper, yet billions face daily struggles to obtain safe drinking water and sanitation. Even developed countries like the UK experience droughts and release huge quantities of untreated sewage into waterways, making water treatment an environmental and business imperative. Implementing efficient systems benefits sectors by conserving ...
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Valuing stormwater, rainwater and wastewater in the soft path for water management: Australian case studies
A Water Sensitive City is now commonly acknowledged best practice for designing the cities of the future. In Australia, the National Water Initiative has allocated high priority towards offering insight into successful water sensitive urban development projects, to facilitate capacity building within the industry. This paper shares innovative water sensitive projects implemented at Kogarah City ...
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The biological basis of wastewater treatment
Introduction This booklet was written to fulfil the need for a simple explanation of the biological processes that underpin wastewater treatment. It attempts to show how the bacteria involved deal with the organic carbon in the sewage. Remarkably, there are just 3 major processes involved, and these mirror exactly the 3 major processes at work in the plant viz: biodegradation, oxygen removal ...
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