Improving the biomass retention and system stability of the anammox EGSB reactor by adding a calcium silicate hydrate functional material.

Improving the biomass retention and the sludge system stability to promote the full-scale application of anammox process is the focus of current related research. In this study, a calcium silicate hydrate functional material with calcium-releasing ability and weak alkalinity was used for an enhanced anammox process. In the long-term operation, an increase in the nitrogen removal rate (NRR) from 2.

Coating of Silica Nanolayers on Carbon Nanofibers via the Precursor Accumulation Method.

Surface modification of nanocarbons, for example, by coating with oxide nanolayers, is a research topic of significant interest because of the drastic changes in the physicochemical properties of the modified nanocarbons. One simple method of creating these oxide nanolayer coatings on nanocarbons is the precursor accumulation (PA) technique, which entails the following: (1) a precursor solution is added dropwise onto nanocarbon powder; (2) the solvent is dried, leaving the accumulated precursor on the nanocarbon surface; and (3) hydrolysis or decomposition of the precursor in air leads to the formation of oxide nanolayers on the nanocarbons. In this study, tetraethoxysilane (TEOS) was used as a precursor for coating silica nanolayers onto carbon nanofibers (CNFs).