Reference Documents

Showing posts with label Sewage Sludge. Show all posts
Showing posts with label Sewage Sludge. Show all posts

Saturday, May 09, 2020

Future Gold In Pee!

"....it's possible to extract 70 liters of fertilizer and 930 liters of water from 1,000 liters of urine within two to three days. That's enough to irrigate and fertilize 2,000 square meters of soil."

Sounds nuts doesn't it? I guess the world is running out of a key fertilizer ingredient phosphorus, and instead of destructively tearing into the earth as they do in Morocco, China, Jordan, South Africa and countries in the Western Sahara to find this stuff, we can mine it right at home! (I had to find a conversion for liters which makes me a bit nuts that my education was so deficient—anyway, the word reminded me of the capacity in a British car engine especially if spelled "litres"—3.7854118 liters equals one gallon.....which reminded me of my first car, a 1957 Mark VIII Jaguar, saloon model [3.4 litres] for which I paid only $800. You don't want to know just when that was.)

The word "struvite" appears in the article. Had to look that up too.

"Struvite is the most common mineral found in urinary tract stones in dogs, and is found also in urinary tract stones of cats and humans.”
Further research revealed that this stuff clogs up the pipes in lift stations, just not urinary tracts!

I found that out watching the video link below. Prepare to isolate yourself elsewhere if anyone around you is sleeping. I laughed out loud a full two minutes until my trachea squeaked. It was the music that did it. I'm still laughing, I can barely type! Clearly they should have consulted our county staff for music to accompany a sewer video (who nailed it)!



Back to pee. From the article linked below:
"Germany's Fraunhofer Institute is developing a process that would allow phosphorus to be separated from sewage sludge with the help of a high-performance ultrasound."
Take a look, this is fascinating! Maybe years down the road, we will find our little sewer plant is a teeny gold mine!

https://www.dw.com/en/phosphorus-in-our-pee-the-new-gold/a-53225198

Saturday, May 03, 2014

The Grim Future for Sewer Sludge in SLO-Co....

Sewer sludge aficionados probably do not exist in this county. Even the operators of the wastewater treatment plants that produce it are probably not that fond of it as it must be trucked out of the County, to Santa Maria or the San Joaquin Valley for disposal.

Of course, our wastewater treatment facility is not built yet, so this is more conceptual than personal to Los Osians at this point.......

At the Board of Supes Tuesday, May 6, 2014:

Hearings:
21. Hearing to consider an ordinance to continue the provisions and restrictions that were in place in the Land Application of Treated Sewage Sludge/Biosolids interim ordinance for a period of four years, and find the ordinance consistent with the previously approved Negative Declaration/Environmental Determination No. ED03-149. All Districts.

The relevant documents can be found here:


This is why it is not applied to land here:


Naturally, the sewage sludge industry feels differently about this!



The Times Press recorder tells us in an article published on March 25, 2013, 
"The county’s 17 wastewater treatment plants generate 11,500 tons of sewage sludge annually, with the majority of the material  6,100 tons trucked to a composting facility in Santa Maria. 
Some of the material does come back to the county in the form of fertilizer, while the other roughly 50 percent of the 11,500 tons of generated sludge is disposed of in landfills or hauled to the San Joaquin Valley for disposal."
Some day we will be adding our own personal contributions to this amount shown above and those who have not pumped for many, many years will add the most - go Al's!

Wednesday, April 16, 2014

Semi-Sewer Related BOS Item Tuesday!

Read what is on Tuesday's Supe's agenda for enlightenment on SLO County bio-solids/sewage-sludge issue!

CONSENT AGENDA – REVIEW AND APPROVAL

Items Set for Hearing:

2. Introduction of an ordinance to continue the provisions and restrictions that were in place in the Land Application of Treated Sewage Sludge/Biosolids interim ordinance for a period of four years. Hearing date set for May 6, 2014. All Districts.


This item is meant notice a hearing to re-up an expired interim ordinance until a permanent ordinance can be crafted by or before March 2018 and includes the need for:

•  Notification of the Public Health Department, Environmental Health Services Division 30 days prior to the land application of biosolids exceeding or equaling 5 cubic yards.

 Places a cap of 1,500 cubic yards on the cumulative total of exceptional quality biosolids that can be land applied in any 12-month period beginning with the adoption of this ordinance.

We will most likely be trucking the Los Osos' sewage sludge to Santa Maria when our plant is up and running and producing this stuff.