Will Sewage and Wastewater Sampling Prove a Key Indicator for Coronavirus Activity?

Coronavirus Activity from sewage

Wastewater testing, or “wastewater quality indicators” are broad descriptions for the various test methodologies to measure water quality.  These tests analyze the physical, chemical, and biological characteristics of wastewater.

As countries and individual healthcare organizations work to arrest the spread of Covid-19 and to care for those who are infected, officials in some geographic locations are using wastewater testing as a possible method for identifying levels of Covid-19 in their communities.  The testing goal is to detect evidence of the Covid-19 genetic material, ribonucleic acid (RNA), in fecal matter in sewage and wastewater.

The novel virus, SARS-CoV-2, is the virus that causes Covid-19. It is known to invade the GI (gastrointestinal) track in some patients, and so the virus is extracted in their fecal matter. 

Looking at the amount of viral matter in waste water from a community could uncover the level of Covid-19 spread in the population.  This information can then be a trigger for the required mitigation initiatives and response plans, such as testing individuals, contract tracking, and quarantine. It also allows for information to be gathered on a cross section of the population, allowing for a way to monitor public health solutions for large groups.  

Scientists from around the world are setting up pilot programs to test waste water.  The Netherlands has successfully performed a Covid-19 test for waste water and additional programs are launching in Singapore, Zurich, Lausanne,  Milan, Rome, Australia, and in parts of the US, such as Colorado, Ohio, New York, and Wyoming.  Scientists in these regions have been able to identify the novel Coronavirus at low concentrations in waste water, pointing to an early warning systems for communities.  

In April, 2020, the scientific journal, Nature, listed that over a dozen groups around the globe were doing research analyzing waste water for Covid-19, and that evidence of the virus was already found in the United States, the Netherlands, and Sweden.

Teledyne ISCO is paving the way with use of water samplers in the effort to identify the virus evidence in sewage.   Their automatic sampler readings analyze the characteristics and presence of the Coronavirus in parts per million quantities and can be laid against the population numbers of a geographic area to ascertain the existence and amount of virus existing in the waste water. 

For more information about the use of Teledyne ISCO water samplers for SARS-CoV-2 monitoring in wastewater contact Advance Instruments. Call them at (888) 388-6446 or visit their website at https://advanceinstruments.com.

Measuring Flow Using Differential Pressure

Measuring Flow Using Differential Pressure
A common use for differential pressure gauges is flow.  Monitoring of differential pressure is the number one tool for calculating flow. A differential pressure gauge connected to a primary flow element's inlet and outlet, such as an orifice plate or Venturi, represents a simple and cost-effective flow monitoring system. Attach the high pressure side to the inlet of the flow component and the low pressure side to the outlet, and the flow rate can be easily read on the analog dial of the differential pressure gauge. Switches and transmitters allow remote measurement of the differential pressure flow rate. 

Bernoulli's Law tells us that the flow rate is proportional to the square root of the differential pressure. This relation between pressure and flow is a simple calculation that enables the most common and cost-effective flow measurement method in many applications. DP (differential pressure) flow meters are especially appealing choices for bigger pipes. Consider the high cost of a 24-inch in-line flow meter. Contrast this to the expense of installing a simple orifice plate. Cutting the pipe or tubing, adding an orifice plate, Venturi, or nozzle, and measuring the pressure drop through the restriction becomes much simpler and a more economical way to go. With this approach, you have a solution that can save hundreds, or even thousands, of dollars.

For assistance with any pressure, temperature, level or flow application, contact Advance Instruments. Call them at (888) 388-6446 or visit their website at https://advanceinstruments.com.

An Important Webinar About Detecting and Tracking COVID-19 Outbreaks from Wastewater Analysis

Wastewater analysis initiatives taken by cities, municipalities, universities and others suggest the SARS-CoV-2 virus passes through human bodies and ends up in wastewater streams, and remains there for a long period longer than on the surface water.

RNA analysis of wastewater can detect this presence of virus, and if done in sewers close to the neighborhood, industrial zone, commercial area, or campus, may yield very valuable insights in the fight against COVID-19.

The Benefits of Wastewater Analysis Include:

  • Detection of carriers in a given community, even if they are asymptomatic. This can assist in proactively managing healthcare resources, better planning for hospitalization surge, the allocation of hospital assets (i.e. beds and ventilators).
  • Assistance in the decision to implement business closures, mask wearing, and social distancing.
  • If wastewater analysis is performed on at schools and university dormitories, schools can be made a safer place for students and allow educational institutions to operate at higher efficiency.
  • If wastewater analysis is done at the treatment plant, it can help verifying that treatment process is adequate to kill the virus and assist in ensuring that treatment plant discharge is 100% virus free.

In short, any type of early information or indications will help us better manage this pandemic and hopefully reduce potential threats.

This 40 minute presentation, presented by Teledyne ISCO, is a "must watch" for anyone in epidemiology, public health, wastewater treatment, and municipal water systems.

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Teledyne ISCO Water Samplers Assist in Coronavirus Tracking in Water Treatment Facilities

Coronavirus Tracking in Water Treatment Facilities

Reading the headlines today, you are seeing more and more municipalities testing their wastewater for the SARS-CoV-2 virus. Viruses and bacteria excreted in urine and stool collect in public sewers. The use of sewage pathogen monitoring in wastewater treatment facilities as a public health surveillance tool is now a reality. Environmental microbiologists have studied pathogens in sewage for decades, but now because of COVID-19, public health surveillance efforts focussing on tracking virus levels is at an all time high. It is critical that expanded testing and monitoring continue, as this will certainly help in understanding how the SARS-CoV-2 virus spreads and potentially affects community populations.

Water Samplers for Coronavirus Tracking in Water Treatment Facilities
Teledyne ISCO, the leading manufacturer of water / wastewater sampling and monitoring tools, is helping in this effort. Teledyne ISCO manufactures a complete line of robust and reliable portable and refrigerated samplers. Using this equipment as part of their overall Coronavirus strategy, municipalities have portable and refrigerated samplers ready for widespread collection and testing. These samplers can be used in any kind of environment or test situation. They are easy to use and program, and they have many configuration options.

With so little knowledge of the SARS-CoV-2 spread, this approach may be very important. The data accumulated from the implementation of large-scale sewer sampling and Coronavirus testing may provide the information needed to build dynamic virus spread maps and, ultimately, the ability to predict and prevent flare-ups.

For more information, contact Advance Instruments. Call them at (888) 388-6446 or visit their website at https://advanceinstruments.com.

The Teledyne ISCO 5800 Refrigerated Sequential/Composite Sampler

Teledyne ISCO 5800The 5800 Refrigerated Sampler is an automated wastewater sampler that can collect liquid samples from a variety of sources including open channels, sewers, and storm pipe conduits.

This indoor/outdoor use sampler is made of durable UV-resistant plastic that provides exceptional resistance to corrosion and weathering. Most notably, the refrigerator body is made from rotationally molded linear low-density polyethylene. This unique construction material was selected for its strength, durability, and its ability to withstand temperature extremes. The system is rated for –29 to 49 °C (–20 to 120 °F) operation. The hollow cavities are filled with foam insulation. To protect the non-CFC system, all refrigeration parts are powder coated with heat-treated polyester.

Unattended sample collection events can be triggered by time intervals (time pacing), or by flow volume measured by an external flow measurement device (flow pacing or constant volume variable time). Isco flow meters are compatible flow measurement devices, as well as any device that can provide a 5 to 15 VDC pulse or contact closure of at least 25 mS duration, or a linear 4-20 mA current loop signal. An external device can also disable the sampler until measured site conditions are met, at which time the sampler begins the automated collection.


The sampler’s pump can deliver the liquid through a 9 mm (3/8") suction line at transport velocities of at least 0.9 meters per second (3.0 ft/sec) at 0.9 m (3.0 ft) of head. The transport velocity at 7.6 m (25 ft) of head is 0.67 m/sec (2.2 ft/sec). The maximum lifting height of the sampler is 8 m (28 ft). To produce accurate and repeatable samples, the pump uses a pump revolution counter and non-contacting liquid detector.

The collected samples are stored inside the refrigerated compartment and cooled for sample preservation. Samples can be deposited into a single bottle (composite), or collected as discrete samples, each into a separate bottle of a multi-bottle rack (sequential), or a combination of these modes. The cooled samples are maintained until an operator can remove them from the sampler and deliver them to the laboratory.

For more information, contact Advance Instruments by calling (888) 388-6446 or visit their website at https://advanceinstruments.com.

Open Channel Flow Challenges - Measuring Flow in Flumes, Weirs, Rivers, and Streams

This video helps you find the best solution to your open channel flow issues. Whether your flow challenge be a flume, weir, river or stream, this presentation by Business Development Manager at Teledyne ISCO, Darrell Kuta, provides expert tips on how to overcome them.

Teledyne ISCO manufactures a wide range of products for professionals working in water pollution monitoring and abatement, engineers and managers involved with wastewater process control. They maintain an outstanding library of educational videos videos here: https://www.youtube.com/channel/UCtcYqTAaloE2TBoEkWeIMTA.

For more information in Ohio, Western Pennsylvania, Western MD, and West Virginia contact Advance Instruments by calling (888) 388-6446 or visit their website at https://advanceinstruments.com.

Will Sewage and Wastewater Sampling Prove a Key Indicator for Coronavirus Activity?

Wastewater testing, or “wastewater quality indicators” are broad descriptions for the various test methodologies to measure water quality.  ...