this post was submitted on 01 Jul 2023
2 points (100.0% liked)

Civil Engineering

119 readers
1 users here now

A community for discussion of Civil Engineering and any of its sub-disciplines, including but not limited to:

-Structural Engineering

-Geotechnical Engineering

-Environmental Engineering

-Transportation Engineering

-Construction Management

-Water Resources Engineering

-Surveying

The intent is to create an open and welcoming community from prospective students and enthusiasts, to Professional Engineers, researchers, and others working in the field.

Rules:

-Maintain civility and treat others with respect.

-Posts should be more-or-less directly related to Engineering.

-Humour is very welcome, just please refrain from low effort memes or posts that do not foster discussion.

founded 1 year ago
MODERATORS
 

Some parts that stood out to me:

When officials from Michigan’s Department of Environment, Great Lakes and Energy (EGLE), first visited the Heritage Crystal Clean Grand Rapids facility, they displayed “a bit of skepticism on the front end, you know, not really understanding what we were doing,” recalled Brian Recatto, the president and CEO of Heritage Crystal Clean. “They wanted us to do a bit more modeling as we installed the equipment, which we did, to prove that we didn’t need an air permit.”

Since then, both Recatto and Trueba say that feedback has been increasingly positive. “They [Michigan state officials] love the fact that we’re destroying the contaminants versus transferring the contaminants,” said Recatto.

A spokesman for EGLE confirmed that the agency has visited the facility, but said the agency could not assess its performance.

"This is new technology and EGLE hasn’t reviewed it (we haven’t seen any performance data yet) thoroughly enough to comment on it,” EGLE spokesman Scott Dean told Wisconsin Examiner in an email message.

“So, in a nutshell, that’s what we do … we use temperature and pressure to create an environment that completely annihilates PFAS.”

The chemicals break down into water, salt, and carbon dioxide, he said. After that, the water is then recycled back into the system it came from.

Recatto said the facility’s daily capacity is expected to be 160,000 to 165,000 gallons of leachate. More PFAS Annihilator systems were being installed at the time he spoke with the Examiner.

He estimated the wastewater treatment plant will be sending “a couple hundred gallons a day of concentrated material to be processed in the Annihilator.”

Even when water treatment results in greater than 99% reduction, the remaining water still has PFOS and PFOA levels above the proposed federal ceiling, the group noted. PFOS and PFOA are two of the most widespread and best understood PFAS chemicals, the group said in a statement. Those “forever chemicals” have been linked to cancers, birth defects, thyroid disorders, and other chronic diseases in humans and other animal species, the organization’s statement said.

Trueba said that “like any industrial water, this water is safe enough to put back into the water treatment facility in Wyoming, Michigan, for water purification and reclamation. No industrial waste water (post initial processing) is safe for human consumption until it goes through the local water treatment facility, in this case the city of Wyoming.”

no comments (yet)
sorted by: hot top controversial new old
there doesn't seem to be anything here