Wastewater Treatment Facilities Provide Possible COVID Tracking for Public Health Surveillance


New studies show that SARS-CoV-2, the virus causing COVID-19, is shed in human feces and is collecting in our city sewers.  If the pandemic continues in waves as the latest estimates believe, wastewater treatment plants could provide early warnings to prevent ICUs and hospitals from being swarmed.

It needs to be mentioned that experts believe, based on previous coronavirus research, that SARS-COVID-2 is effectively removed through traditional water treatment processes. The focus on these public health surveillance efforts track virus levels before treatment.

Environmental microbiologists have studied pathogens in sewage for decades. In 1989, Israel set up a Polio virus sewage surveillance system. The use of sewage pathogen monitoring in wastewater treatment facilities as a public health surveillance tool, however, is a fairly new area of study. 

Biobot, Somerville, MA company who specializes in wastewater epidemiology, is establishing protocols to test sewage for SARS-CoV-2. Biobot analyzes viruses, bacteria, and chemical metabolites that are excreted in urine and stool and that collect in sewers. If the SARS CoV-2 protocol is successful, the data will give communities a dynamic map of the virus as it spreads to new places.

Data from sewage will enable communities to:
  • Measure the scope of the outbreak independent from patient testing or hospital reporting, and include data on asymptomatic individuals,
  • Provide decision support for officials determining the timing and severity of public health interventions to mitigate the overall spread of the disease,
  • Better anticipate likely impact on hospital capacity in order to inform hospital readiness and the necessity of public health interventions,
  • Track the effectiveness of interventions and measure the wind-down period of the outbreak, and
  • Provide an early warning for reemergence of the coronavirus (if it does indeed have a seasonal cycle).
To learn more about their program, visit the Biobot website.

Other useful links about the effort to use wastewater for SARS-CoV-2 tracking:

Measuring Flow in Open Channels: Weirs, Flumes, Rivers & 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 about Teledyne ISCO products in Florida or the Caribbean contact Instrument Specialties by calling 407-324-7800  or visit their website at http://isi.group.

Instrumentation and Plant Safety Case Study: Refinery Explosion


A case study of the 2005 BP refinery explosion in Texas City, TX. This video recaps the events and circumstances leading up to a catastrophic explosion. Contributing factors include inadequate level and safety instrumentation, as well as breakdowns in safety monitoring and standard operating procedures. This video, courtesy of the Chemical Safety Board (csv.gov) is an excellent educational reference and should be viewed by engineering, maintenance, and plant management personnel everywhere.

Instrument Specialties, Inc.
http://isi.group
407-324-7800

The Flowserve Logix 3200 Positioner: Calibration Procedure


This video describes the calibration procedure for the Flowserve Logix 3200 positioner.

The Flowserve Logix 3200 Series Digital Positioner includes:
  • Two versions: Basic & Advanced (Advanced includes pressure sensors to measure actuator pressure)
  • HART Command 1, 3, 9, 33 & 48
  • Burst Mode available to continuously transmit
  • Position command analog loop current
  • Final value of command after characterization
  • Supply pressure (advanced), Temperature (basic)
  • Stem position in percent
  • Onboard temperature sensor to measure local positioner ambient
  • Stroke speed limiter (configurable through HART)
  • Stainless steel version available
  • Enhanced Device Description for advanced signature diagnostics
  • Step test, friction test, HRL, data logger
For more information, contact Instrument Specialties, Inc. by calling 407-324-7800 or visit http://isi.group.

SOR Introduces the 1800 Series for Intrinsically Safe Applications and Conventional Transmitter Installations

The new SOR 1800 Series are available in 3 different models: gauge pressure measurement with standard over pressure rating, gauge pressure measurement with high over pressure rating, and differential pressure measurement.  The new line is well suited for intrinsically  safe applications or conventional transmitter installations where a compact footprint is impractical. The 1800 Series transmitters utilize an advanced monosilicon pressure sensor and incorporate a patented encapsulation technology to achieve exceptional mechanical and thermal isolation.

All 1800 Series transmitters include external push-buttons for device setup and calibration. If ordered with HART® output they can also be programmed with a HART® communicator. Additionally, they are available with 2, 3, or 5-valve manifolds. With a standard ±0.075% accuracy, the SOR 1800 Series conventional transmitters are an exceptional solution for continuous pressure monitoring.

Download the Series 1800 specification sheet and selection brochure from this Instrument Specialties web page.

For more information, contact Instrument Specialties by calling 407-324-7800 or visit their web site at http://isi.group.