Paul the Water Man on 560AM KLZ Haystack Help Radio

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Bacteria Resistant To Last Resort Antibiotic Found For First Time In Los Angeles County Wastewater

  Bacteria that renders colistin, a “last resort” antibiotic, ineffective are lurking in SoCal’s wastewater. While bacteria resistant to colistin have been found elsewhere in the world, this marks the first detection in Los Angeles wastewater. The bacteria and associated genes that provide resistance to colistin were discovered at the county’s two largest wastewater plants. One treatment center serves 4 million residents, the other serves 3.5 million. The resistant bacteria and associated genes were discovered by Adam Smith, a professor in the Sonny Astani Department of Civil and Environmental Engineering, and documented in a new paper published in Environmental Science & Technology Letters. Smith, who documented COVID’s presence in wastewater during the pandemic, admits this type of antibiotic resistant gene has been found elsewhere in the world (6 of 7 continents, he said) but this is first time there are traces of this particular antibiotic resistance in LA. Smith says that ...
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The Plan To Remove PFAS

 After listening to the plan from the EPA on how to remove the forever chemicals listed in the umbrella of PFAS, its clear the municipal water districts will have a hell of a time complying with the new regulations. The proposed National Primary Drinking Water Regulation  is allowing the EPA to enforce its new standards for regulating the PFAS contamination in our drinking water supply.  This is all well and good, until you look at the ways and means to actually remove the contaminate.  On a large Municipal water supply, you can have tens of thousands to hundreds of thousands of customers.  The water Volume alone in a five inch or eight inch water main is tremendous.  With the high volume and flow rates, the size of the filter or the amount of media would be in the range of a half a million plus cubic feet.  Ok, lets back up a bit. One effective way to remove the PFAS from your water supply is anion resin.  This most cost effective with its regene...
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EPA Plan to remove PFAS "Activated Carbon"

 Activated carbon treatment is the most studied treatment for the PFAS removal.  Activated carbon is commonly used to adsorb natural organic compounds, taste and odor compounds and synthetic organic chemicals in drinking water treatment systems.  Adsorption is both physical and chemical process of accumulating a substance such as PFAS, at the interface between liquid and solids phases.  Activated carbon is an effective adsorbent because it is a highly porous material and provides a large surface area to which contaminates may absorb. (Now keep in mind the other contaminates that will be adsorb.  This will take up surface area of the carbon shell.)  Activated Carbon is made from organic materials with high carbon contents such as wood, lignite and coal. (GAC = Granular Activated Carbon) GAC has been shown to effectively remove PFAS from drinking water when it is used in a flow through filter mode AFTER particulates have already been removed.  ( This mea...
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