The eco-efficiency evaluation in wastewater treatment plants (WWTPs) is used to know and improve the environmental economic efficiency of these processes, systems, products, services. evaluations WWTP contemplate inputs be minimized, desirable results maximized, undesired minimized. Data envelopment analysis (DEA) a widely method evaluate WWTPs; integrating several approaches single index, trad...

Abstract Reliance on biochemical oxygen demand (BOD5) as an indicator of wastewater quality has hindered the development efficient process control due to associated uncertainty and lag-times. Surrogate measurements have been proposed, with fluorescence spectroscopy a promising technique. Yet, assessment in-situ sensors across multiple treatment plants (WwTPs), at different stages, is limited. I...

With rapid urbanization and infrastructure investment, wastewater treatment plants (WWTPs) in Chinese cities are putting increased pressure on energy consumption and exacerbating greenhouse gas (GHG) emissions. A carbon footprint is provided as a tool to quantify the life cycle GHG emissions and identify opportunities to reduce climate change impacts. This study examined three mainstream wastew...

The acute toxicity of ammonia on Thulinius ruffoi (Bertolani, 1981), a eutardigrade isolated from a small waste water treatment plant (WWTP) in Poland, was estimated. Our results show that no active individuals survived a 24 h exposure to solutions equal to or higher than 125 mg/L of total ammonia nitrogen (NH3-N + NH4 (+)-N), which, under the conditions in our experiment, was equivalent to 1.1...

Conventional wastewater treatment plants (WWTPs) contribute significantly to the nitrous oxide (N2O) emissions. On other hand, contribution of constructed wetlands (CWs) N2O emissions is not clear. In this study, a literature review was initially conducted study factors that are correlated with from these systems. Afterwards, statistical formula developed using metaregression method for estimat...

Humanity faces serious problems related to water supply, which will be aggravated by population growth. The used in human activities must treated make it available again without posing risks health and the environment. In this context, Wastewater Treatment Plants (WWTPs) have gained importance. treatment process WWTPs is complex, consisting of several stages, consume considerable amounts resour...

The preliminary treatment of wastewater at plants (WWTPs) is great importance for the performance and durability these plants. One fraction that removed this initial stage commonly called gross solids can cause various operational, downstream performance, or maintenance problems. To avoid this, data from more than two operation years Villapérez Wastewater Treatment Plant, located in northeast c...

Abstract The seismic vulnerability of public buildings must be estimated using structural or non-structural parameters. Scientists ought to investigate these factors for the estimation and analysis lifelines such as wastewater treatment plants (WWTPs). Although efforts have been made in past, serious operational parameters are not enough defined. This study considers amount shortening supposed ...