OK I'm going to pull you up right there.
You're doing it again. Posting hype based on nonsense.
It should be clear to you that the Italian article you posted is very old, as it is talking about people from Phoslock Europe GmbH, who are no longer with Phoslock, and in fact have their own business - LSI which isn't mentioned.
Mickem pointed this out to you. This test / trial was conducted in 2009.
If you did in fact research google, you would have stumbled across the organisation that has been working to Save Lake Varese.
This is part of a published letter they wrote in 2021 ...
2004 the use of “Phoslock”, a modified clay which can remove the phosphorus dissolved in the
water and reduce its release was introduced by the company “Phoslock Europe GmbH”. But
this project was also abandoned due to the high costs and the chemical composition of Phoslock,
which is characterized by high doses of lanthanum, a toxic metal.
75
A pilot study performed in 2009 about the reduction of the loading by applying a lanthanum-modified bentonite clay to
bind the element showed a sharp reduction (more than 80%) of the P concentrations along the
water column during 2009–2010. However, the trend seems to be reverted with an increase of
the cyanobacteria during the 2011–2014 years.
..............
Thousands of kilometres of sewerage of the network should be rehabilitated, over two hundred overflows and
the still hidden illegal water inflows should be spotted. Until today there was unfortunately
no mentionable progress made sincehttps://www.savelakevarese.org/wp-content/uploads/2021/04/RCC-_Final-Project_SaveLakeVarese_C.Ram.pdfYou should delete what you have posted. It is false.
(20min delay)