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Cost-effectiveness analysis for sustainable wastewater engineering and water re...

A cost-effectiveness integrated methodology applied in a water resources management and sanitation project in Minho and Lima’s region (Portugal) is presented. First, environmental objectives and programmes of measures (PM) are established and priorities are identified using a cause–effect assessment matrix and a global effectiveness index. Aiming to achieve more demanding goals, some complementary actions are c...

Economic and environmental assessment of small and decentralized wastewater tre...

The aim of the present work was the assessment of economic and environmental aspects of decentralized energy-saving wastewater treatment systems. The formulated investment and operation cost functions were adjusted by a power law function. The different wastewater systems serving population settlements between 50 p.e. and 250 p.e., presented associated investment costs varying from €400/p.e. to €200/p.e. and an...

Electronic transference assessment in a geobacter sulfurreducens fuel cell

Life cycle assessment of wastewater treatment options for small and decentraliz...

Sustainability has strong implications on the practice of engineering. Life cycle assessment (LCA) is an appropriate methodology for assessing the sustainability of a wastewater treatment plant design. The present study used a LCA approach for comparing alternative wastewater treatment processes for small and decentralised rural communities. The assessment was focused on two energy-saving systems (constructed w...

Growth of Alcaligenes faecalis and Bacillus pumilus isolated from hydrocarbon s...

Economic and environmental assessment of small and decentralized wastewater tre...

The aim of the present work was the assessment of economic and environmental aspects of decentralised energy-saving wastewater treatment systems. The formulated investment and operation cost functions were adjusted by a power law function. The different wastewater systems serving population settlements between 50 p.e. and 250 p.e., presented associated investment costs varying from 400 €/p.e. to 200 €/p.e. and ...

Uso de técnicas de detecção rápida de fungos filamentosos na água

Dissertação Mestrado em Tecnologia do Ambiente ; Na Carta Europeia da Água do Conselho da Europa, proclamada em Estrasburgo em 6 de Maio de 1968, encontra-se o seguinte item: “A investigação sobre a água, e especialmente sobre a água já utilizada, deve ser encorajada ao máximo. Os meios de informação devem ser ampliados e as trocas internacionais facilitadas, ao mesmo tempo que se impõe uma formação técnica e ...

Fungi in bottled water : a case study of a production plant

A one-year fungal survey of a water bottling plant was conducted in order to evaluate the incidence and fluctuations of the mycobiota. The dominant fungal genera in order of highest numbers isolated were Penicillium, Cladosporium and Trichoderma followed by Aspergillus, Paecilomyces, and others. As expected, the highest number of isolates were collected during the warmer months, particulary May and June. Indeed...

Life cycle assessment of wastewater treatment options for small and decentraliz...

There are several methodologies that enable direct comparison of centralized and decentralized sewage treatment systems, both in economical and ecological view. One of the latter is the so-called Life-Cycle Analysis (LCA), which accounts for the environmental impacts of a product, service, or process over the course of its life cycle. Assessed environmental impacts generally include consumption of land, energy,...

Fungi in bottled water : a case study of a production plant

A one year fungal survey of a water bottling plant was conducted in order to evaluate the incidence and fluctuations of the biota. The dominant fungal genera in order of highest numbers were Penicillium, Cladosporium and Trichoderma followed by Aspergillus, Paecilomyces, and others. As expected, highest number of isolates collected were during the summer months, particularly May and June. Indeed during these tw...