Enhancement of sludge electro-dewaterability during biological conditioning

Abstract

An effective deep dewatering process of coupling biological conditioning and electro-dewatering was proposed and analyzed.

Stepwise Reduction and In Situ Loading of Core‐Shelled Pt@Cu Nanocrystals on TiO2–NTs for Highly Active Hydrogen Evolution

“…By contrast, our previous study has confirmed that the catalytic activity of Pt@Cu bimetal nanocrystals with same metal molar ratios present evidently inferior catalytic activity to Pt@Cu(9%)/TiO 2 , [ 28 ] which should be undoubtedly attributed to the positive effect of the carrier TiO 2 –NTs. [ 17 ]…”

“…On the other side, the noble metal components, especially their nanoagents, are prone to loss or agglomeration in the course of service, thus reducing their activity and working life. [ 14–16 ] Therefore, in recent years the studying focus in the related field has gradually shifted to noble/nonnoble metal supported catalysts, with the aim of realizing high dispersing and firm bonding for the active components on some suitable carriers, [ 17,18 ] reducing the cost of the catalyst, also improving the catalytic performance. Titanium dioxide (TiO 2 ), with abnormally high chemicophysical stability, satisfactory mechanical strength, and rich morphology, has been known as one kind of promising and competitive catalytic carrier.…”

“…), [ 25,26 ] even certain nonnoble metals (e.g., Cu, Ni, etc. ), [ 17,27 ] to form more active sites on the interface/surface, effectively boosting the catalytic ability.…”