C60 fullerenes soluble in water - posses antibacterial properties

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"Joseph Hughes, Ph.D., an environmental engineer at Georgia Tech and lead author of a study and his collaborators at Rice University in Texas have found that buckyballs �nano-C60� that are about 10 orders of magnitude more soluble in water than the individual carbon molecules.
In this new experiment, they exposed nano-C60 to two types of common soil bacteria and found that the particles inhibited both the growth and respiration of the bacteria at very low concentrations � as little as 0.5 parts per million. "

As in other regards, properties like solubility are substantially different from bulk carbon like carbon black or graphite.

Old sludge/young sludge dewaterability? - From Water and Wastewater.com Help Forum

Water and Wastewater.com Help Forum - Old sludge/young sludge dewaterability?

sludge age - dewaterability relation is very complex. There are certainly differences between activated sludge and digested sludge. It well might be that after an initial degradation in dewaterability of activated sludge this will improve again.

The point with the extracellular polymers is that these will also consume polyelectrolyte.
So with activated sludge I suppose the problem is the release of the extracellular polymers, which later might be consumed by bacteria (leading to an improvement then).

Antifouling without biocides - SigmaKalon BU MPC - SigmaGlide

Product News - SigmaKalon BU MPC - SigmaGlide, A Revolutionary "Green" Technology: "A biocide-free product The main output of this research programme is the development of a silicone-based fouling release concept that has been commercialised as SigmaGlide. The product involves two coats, applied in turn to an abrasion resistant epoxy anti-corrosive system. The first coat adheres the silicone system to the anti-corrosive system and the second applies the fouling release properties. Because SigmaGlide is not an anti-fouling product, it contains no biocides and as a result is not governed by regulatory requirements."

Carbon Dioxide Role In Past Climate Revealed

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Report in a leading Earth Science journal, Geochemistry Geophysics Geosystems

Cambridge, UK Researchers at the British Antarctic Survey (BAS) and the University of California, Santa Cruz have discovered that Earths last great global warming period, 3 million years ago, may have been caused by levels of CO2 in the atmosphere similar to todays.

"If the warming was caused by ocean currents, we would expect to see cooling at the tropics and warming at the poles. Conversely, if CO2 was the cause then we would expect both the tropics and the poles to warm.
The sea temperature pattern we found points the finger squarely at CO2 rather than the ocean currents. "