October 2017 Newsletter
Another Year Has Come and Gone for the Hands-on CEU Class Provided By Bac-Flo Unlimited, Inc. Free of Charge To the Members of ABPA-SA and ABPA-CT.
The members who had earned at least 16 CEU credits by attending monthly chapter meetings since their BPAT license was issued and who need to renew their license before September 2018 had the privilege of attending the annual 8 hour hands-on class provided by Bac-Flo Unlimited. Most members consider Bac-Flo Unlimited as being Fred and Troy, but what they may not know is the third member of their team is Sandy. Sandy usually is in the background during their regular classes throughout the year, however, during this special event they provide to ABPA-SA and now ABPA-CT (Central Texas) members, she is out in front of the crowd.
July 2017 Newsletter
What Causes Contamination Through Cross-Connections to Occur?
Under intended flow conditions, distribution systems are pressurized to deliver finished water from the treatment plant to the customer. However, two situations can cause the direction of flow to reverse: pressure in the distribution system can drop due to various conditions or an external system connected to the distribution system may operate at a higher pressure than the distribution system. These differences in pressure can cause contaminants to be drawn or forced into the distribution system. Contamination introduced due to backflow into the distribution system may then flow freely into other customer connections. The following conditions must be present for contamination to occur through cross-connections.
September 2017 Newsletter
The hazards of a major flood did not prevent thousands of volunteers from helping their fellow Americans. They have given more than we will ever know.
This document addresses approaches to cleaning up residences flooded after a hurricane or other weather event. It is based on a literature search conducted using PubMed, Science Direct, the Morbidity and Mortality Weekly Report search engines, and the files of the co-authors. The report considers the types of illnesses associated with such flooding; the effectiveness, selection, use, and hazards of biocides for cleaning and decontaminating surfaces affected by the presence of microorganisms and their biofilms; and available guidance documents that provide recommendations for cleaning up after floods, hurricanes, and related events.
June 2017 Newsletter
Spinning Biogas Into Gold With Combined Heat And Power
Glen Illyn, IL, is a fairly typical American suburb, with 27,000 residents living about 40 minutes from the bright lights of Chicago.
The local wastewater treatment plant, the Glenbard Wastewater Authority’s Advanced Wastewater Treatment Facility, is typical as well. It has a normal daily design flow of 16 MGD and peak design flow of 47 MGD. Its advanced treatment includes primary screenings; grit removal; primary clarification; high-purity, oxygen-activated sludge; clarification; tertiary treatment; and UV disinfection.
But in one key way, Glenbard is different than many other wastewater treatment plants around the country. It had grown interested in resource recovery and utilizing the influent it treated to help power and fund its operations and that interest has blossomed into an estimated $200,000 saving in annual energy costs.
August 2017 Newsletter
The San Antonio Chapter has Expanded its Public Education
The ABPA-SA Chapter has been trying for many years to develop a public education program that would be understood by most of the citizens in our community. The members became aware of the difficulty of being able to relay information about the hazards of cross connections and the need for backflow preventers on the irrigation systems owned by many of the households in today’s municipalities. One of the members at a monthly meeting said, “If you folks come up with an idea, I can build it”. The discussion immediately started with a list of the many hazards present in a residential irrigation system. The list included hazards such as insecticides, herbicides, fertilizers, and pet and rodent excretions. The stage was now set to try and create a model that would relay this basic information to the public in a simple and easy to understand manner that was almost instantaneous, since most people will not spend more than a few seconds looking at a model.
May 2017 Newsletter
Sewer Workers May Face Ebola Threat
Researchers say sewer workers operating near a hospital treating Ebola patients may be at risk of picking up the virus, which can cause a fast-acting and often fatal disease.
A study published in this month’s edition of Water Environment Research, the journal of the Water Environment Federation, examined guidance from the World Health Organization and the Centers for Disease Control and Prevention on how to dispose of waste from Ebola patients.
There is no research on whether the guidance from these groups ensures safety for wastewater workers, particularly if they inhale fumes in the sewer system, the study says.
“Current World Health Organization and Centers for Disease Control and Prevention guidance for the disposal of liquid waste from patients undergoing treatment for Ebola virus disease at hospitals in the U.S. is to manage patient excreta as ordinary wastewater without pretreatment,” the study said.
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