Concept

Sludge

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Enteroviruses, which are commonly circulating viruses shed in the stool, are released into the sewage system and only partially removed or inactivated, resulting in the discharge of infectious enteroviruses into the environment. Activated sludge and chlori ...

2023

Wastewater monitoring can anchor global disease surveillance systems

Tamar Kohn, Timothy R. Julian, Alex Robinson

To inform the development of global wastewater monitoring systems, we surveyed programmes in 43 countries. Most programmes monitored predominantly urban populations. In high-income countries (HICs), composite sampling at centralised treatment plants was mo ...

2023

Effect of wastewater treatment and environmental exposure on an enterovirus population

Odile Marie Clotilde Hervás de Nalda-Larivé

The presence of viruses in recreational water can present a risk for human health and wastewater effluent is a source of virus in the environment. Their persistence in the environment influences their probability to find a new host. Studies have shown that ...

EPFL2022

Optimization of Fecal Sludge Transport in Camp 18 of the Cox's Bazar Refugee Camp

Sanitation planning and management is a complex problem, especially in emergency contexts such as refugee camps. Camp 18 of the Cox’s Bazar refugee camp has over 27 000 inhabitants, who have access to 1931 latrines from which the sludge is treated in a cen ...

2022

In this study, mixed culture (microalgae:activated sludge) of a photobioreactor (PBR) were investigated at different inoculation ratios (1:0, 9:1, 3:1, 1:1, 0:1 wt/wt). This work was not only to determine the optimal ratio for pollutant remediation and bio ...

2020

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The importance of faecal sludge management is gaining recognition. However, methods are still lacking to reasonably estimate the quantities and qualities (Q&Q) that need to be managed, which makes the planning for and implementing of management solutions q ...

ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD2020

Given the great concern about phosphorus (P) resource depletion, it's promising to recover P from waste activated sludge (WAS) especially for agricultural application. To this end, it's necessary to understand the P speciation and fractionation within the ...

ELSEVIER SCIENCE SA2019

The Role of Environmental Variables in Waste Stabilization Ponds' Morphodynamics

Paolo Perona

In management of helminth infections and transmission, the correct prediction of sludge accumulation patterns in waste stabilization ponds (WSP) is important as sedimented eggs are associated with sludge depth. However, sedimentation in WSP is complicated ...

2019

Influence of Wastewater Composition on the Microbial Communities of Aerobic Granular sludge

Christof Holliger, Julien Maillard, Aline Sondra Adler, Valérie Berclaz, Marie Christelle Horisberger, Eva Reynaert

Aerobic granular sludge (AGS) is an emerging technology offering an alternative wastewater treatment with a reduced footprint compared to conventional activated sludge systems. Basic understanding of AGS processes has mainly been obtained in laboratory-sca ...

2019

Imaging the aerobic granular sludge microbial community using light-sheet fluorescence micros

Christof Holliger, Julien Maillard, Arnaud Michel Gelb, Karen Gemayel

One of the aims of wastewater treatment is the removal of phosphorus before the water is discharged into the environment. Since phosphorus concentrations in wastewater exceed the requirement of bacterial growth, biological phosphorus removal is based on th ...

2019