C Wu, W Li, K Wang, Y Li - Bioresource technology, 2015 - Elsevier
… Reused pumice increased 23.68% of CO 2 production and … pumice reduced 43.37% of nitrogen loss. These results suggested that adding pumice and sucrose-decorated pumice in …
… in the classification of pumice as acidic or basic. The major oxide in pumice is SiO 2 and it constitutes about 70% of pumice by weight. The other oxides in acidic pumice are Al 2 O 3 (∼…
K Grasser, G Minke - 1990 - humanitarianlibrary.org
… This book represents a first-ever attempt to explain and illustrate how the volcanic material pumice can be processed using simple technologies suitable for developing countries. …
… tests of acidic pumice were performed … pumice varied between 0.05 μm and 2 mm depending on its particle size and these cavities usually did not intersect each other; (ii) as the pumice …
… of wall tile and pumice are given in Table 1. In this study, instead of pegmatite, pumice usage … The values of d50 and d90 are similar for pumice added and pumice free slurries at particle …
… This study aims to evaluate the feasibility of using pumice instead of feldspar and clay typically used in porcelain tiles and to examine its impact on technological properties during …
… negatively charged pumice surfaces. However, it should be noted that most cyanide treatment technologies employ pH values of about 10.5–11 to minimize the formation of HCN gas. …
… Pumice stone is a natural sponge-like lightweight aggregate formed during the rapid … This article focused on the influence of pumice powder (PP) on fresh properties and hardened …
MJ Pender, LD Wesley, TJ Larkin, S Pranjoto - Soils and foundations, 2006 - jstage.jst.go.jp
… All the soil testing discussed in this paper was done on dry pumice. The porosity of the individual pumice particles means that the specific gravity of the particles is difficult to determine. …