OPINION: Faecal shedding of SARS-CoV-2, a snapshot of current data and implications for the water industry

There has been quite some talk about SARS-CoV-2 shedding in faeces and what that might mean for the water industry.  As I see it, there are two aspects to this conversation: the first is a concern that sewage may contain infectious SARS-CoV-2 viruses; and the second relates to the more theoretical potential of using SARS-CoV-2Continue reading “OPINION: Faecal shedding of SARS-CoV-2, a snapshot of current data and implications for the water industry”

Survivability, Partitioning, and Recovery of Enveloped Viruses in Untreated Municipal Wastewater

This is a paper from the research team led by Associate Professor Krista Wigginton at the University of Michigan. Wigginton’s team have focused on the fate of enveloped viruses (including coronaviruses) in the urban water cycle (drinking water, sewage, sewage treatment) for much of the last decade. Most researchers studying viruses in water have focusedContinue reading “Survivability, Partitioning, and Recovery of Enveloped Viruses in Untreated Municipal Wastewater”

Research Needs for Wastewater Handling in Virus Outbreak Response

This paper is the fourth and final scientific opinion piece, published as a non-peer reviewed contribution to the Environmental Science and Technology virtual issue on the fate and behaviour of enveloped viruses in the environment. The authors are Kyle Bibby (University of Pittsburgh, USA), Nathalia Aquino de Carvalho (University of Pittsburgh, USA), and Krista WiggintonContinue reading “Research Needs for Wastewater Handling in Virus Outbreak Response”

SARS-CoV-2: What is its fate in urban water cycles and how can the water research community respond?

This paper is an “Editorial Perspective” published in the Royal Society of Chemistry (RSC) journal “Environmental Science: Water Research & Technology”*. The authors are Vincenzo Naddeo (University of Salerno Italy) and Haizhou Liu (University of California at Riverside, USA). The paper is made free to all readers as part of the RSC collection on coronaContinue reading “SARS-CoV-2: What is its fate in urban water cycles and how can the water research community respond?”

Chemicals and microbes in bioaerosols from reaction tanks of six wastewater treatment plants: survival factors, generation sources, and mechanisms

Wastewater treatment commonly includes the production of air bubbles (aeration) at the bottom of activated sludge or during Dissolved Air Flocculation and Floatation. When the bubbles rise to the surface they burst, form droplets and ‘aerosolise’. This is how pathogenic microorganisms in the wastewater can become ‘airborne’.  The Experiment: Bioaerosol samples were collected from 0.1,Continue reading “Chemicals and microbes in bioaerosols from reaction tanks of six wastewater treatment plants: survival factors, generation sources, and mechanisms”

Presence of SARS-Coronavirus-2 in sewage

Authors: Gertjan Medema and colleagues at KWR in The Netherlands In a non peer reviewed preprint (preprint pdf) report on their use of rt-PCR to detect RNA from SARS-COV-2 at multiple locations.  Their sampling started in February, before COVID19 cases were detected in The Netherlands, and extended when cases were detected at all sites. TheContinue reading “Presence of SARS-Coronavirus-2 in sewage”

An Imperative Need for Research on the Role of Environmental Factors in Transmission of Novel Coronavirus (COVID-19)

On this blog, we have previously highlighted the recently produced open access Environmental Science and Technology ‘virtual issue’, collating numerous years of research on the fate and behaviour of enveloped viruses in the environment. This virtual issue includes a current “scientific opinion” (non-peer reviewed) piece by four researchers, Guangbo Qu (Chinese Academy of Sciences), XiangdongContinue reading “An Imperative Need for Research on the Role of Environmental Factors in Transmission of Novel Coronavirus (COVID-19)”

Dutch scientists recover SARS-CoV-2 RNA from untreated sewage

The possibility of monitoring the presence of SARS-CoV-2 RNA in sewers has been flagged as an important research opportunity (most recently here). Many people are familiar with the idea of monitoring the presence of illicit drugs in sewage as a means of determining temporal and spatial patterns of drug use in communities. A directly analogousContinue reading “Dutch scientists recover SARS-CoV-2 RNA from untreated sewage”

Environmental Engineers and Scientists have Important Roles to Play in Stemming Outbreaks and Pandemics Caused by Enveloped Viruses

As described in our previous post, the journal Environmental Science and Technology have released a virtual issue providing an “Overview of Research on the Fate and Behaviour of Enveloped Viruses in the Environment”. That virtual issue was guest-edited by Alexandria B. Boehm and Krista R. Wigginton, two leading researchers on the fate of viruses inContinue reading “Environmental Engineers and Scientists have Important Roles to Play in Stemming Outbreaks and Pandemics Caused by Enveloped Viruses”

Survival of Coronaviruses in Water and Wastewater

This paper presents a study in the survival of two representative coronaviruses (feline infectious peritonitis virus, and human coronavirus 229E) in filtered and unfiltered tap water (4 and 23°C) and wastewater (23°C). The survival of these coronaviruses was compared to poliovirus 1 under the same test conditions. Inactivation of coronaviruses in the test water wasContinue reading “Survival of Coronaviruses in Water and Wastewater”