Technology: general issues 3 bulk density 12-HEPP 1 Andisol 1 B2O3 1 CO2 capture 1 CO2 gasification 1 CaF2 1 CaO-SiO2-FetO-P2O5 slag system 1 Ce treatment 1 CiteSpace 1 DEA-12-PD 1 Environmental science, engineering & technology 1 FAO56 dual-Kc approach 1 FTIR and XRD studies 1 FeO 1 Gleam Product 1 Harare 1 Langmuir and Freundlich 1 N2O 1 PCA 1 PID control 1 PLS-DA 1 Phreatophyte 1 S-index 1 SIMCA 1 Schiff base 1 South Africa 1 Søderberg electrodes 1 TiO2 1