Posted on 10/25/2021 11:00:31 AM PDT by far sider
I am a member of a group of water and wastewater professionals who manage municipal treatment facilities in Ohio. Members represent large wastewater plants, such as Cleveland, Columbus, Cincinnati, as well as smaller cities. Concerned members are discussing their experiences with shortages of crucial chemicals and needed to treat water and wastewater.
Here is a sample email from a mid-size Ohio city:
We have seen delays in shipments of Ferric Chloride in the last 2 months and have been warned that it is not going to get better any time soon. We just bid polymer for a two year contract and only had one bidder. The suppliers told us the market is so volatile that they did not want to commit to a 1 year contract let alone a 2 year contract. The winning bid was 47% higher than our current price.
Other members are experiencing difficulties acquiring specialty chemicals. It will be interesting to see how the environmentalists react when cities can't comply with regulations due to supply chain issues.
Utility bill increases on the horizon.
Septic systems require tanks to be pumped or fields will fail and “reject” effluent. Sewer treatment facilities are where pumped “septage” is treated. You are not immune from relying on this resource.
or it’s pumped directly to CNN
The local surface water treatment plant switched from ferrick to alum a few months ago, same issue.
Thank you for sharing.
lol..True and pay some city workers $110,000 a year to clean it up.
They are trying already. Obama Wants to close down septic systems by regulating e coli counts within 2 to 300 feet of any water source. Bear and woods? No more
It’s used in both Water Treatment and Wastewater Treatment as part of the Flocculation Stage. It attracts and attaches to the Solids and gets heavier until the Solids sink to the bottom of the Flocculation Chamber removing the bulk of the Solids. The Water/Wastewater then moves to the next stage of treatment where other chemicals (such as Chlorine and Polymers) are introduced as the Water goes to the Filtration Stage in a Conventional Plant or the Membrane Filters in the newer Plants.
The next stage is final disinfectant (Chlorine or Chloramines) and some Plants use Ozone and/or Ultraviolet and then final disinfectant of Chlorine or Chloramines to meet EPA or State requirements. Some States have stricter than EPA standards such as Texas and Kookafornia.
The most used Coagulants are Ferric Sulfide (iron) and Alum or Copper Sulfate.
The Polymers are a proprietary blend and the recipes are closely guarded by the Chemical Companies with some being Positive and some Negative charged to deal with different solids.
Chlorine or Chloramines (a mixture of Chlorine and Ammonia) for final and distribution system disinfectant residual.
I hope this answers Your questions.
Thank You for the Ping Sir Chode.
Chlorine Shortage Spurs Unprecedented Requests for EPA Help (1)
Aug. 16, 2021, 1:34 PM; Updated: Aug. 16, 2021, 2:42 PM
Supply disruptions at water treatment plants are regional at the moment—mainly in the Southwest—and not “a national issue at this point,” said Alan Roberson, executive director of the Association of State Drinking Water Administrators.
Many of the systems asking for help have gotten the water treatment chemicals they need without the EPA, but they wanted to avoid missed deliveries that could cause disruptions.
Wastewater chemicals shortage may see partially treated effluent flushed into English rivers (September 2021)
https://www.chemistryworld.com/news/wastewater-chemicals-shortage-may-see-partially-treated-effluent-flushed-into-english-rivers/4014397.article
A shortage of HGV drivers is putting pressure on the supply chain for chemicals used to treat wastewater in the UK. As a result, the government has told wastewater treatment works in England they may be able to discharge effluent that has not been fully treated if needed.
Trade body Water UK has identified some disruption to the distribution of ferric sulfate to a small number of water companies. It’s used to remove phosphorus from wastewater. A Water UK spokesperson noted that the problem is a national shortage of specialist HGV drivers able to move the chemical and they do not expect the situation to improve in the short-term. They also stress that the shortage is not affecting drinking water treatment.
(hmm...again a lack of truck drivers, even in the UK)
OHIO PING!
Please let me know if you want on or off the Ohio Ping list.
Water/Wastewater Chemical Supply Issues (Vanity)
email | 10/25/2021 | Vanity
Posted on 10/25/2021, 2:00:31 PM by far sider
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