Combined treatment of landfill leachate and municipal wastewater was performed in order to investigate the changes of leachate toxicity during biological treatment. Three laboratory A2O lab-scale reactors were operating under the same parameters (Q-8.5-10 L/d; HRT-1.4-1.6 d; MLSS 1.6-2.5 g/L) except for the influent characteristic and load. The influent of reactor I consisted of municipal waste...

New Bi1.5Mg0.9-xLixNb1.5O7–? (x = 0.25; 0.40) and Bi1.4RE0.1Mg0.5Li0.4Nb1.5O7–? (RE – Eu, Ho, Yb) compounds with the pyrochlore structure were synthesized. The displacements of A-site atoms (96g) O' ones (32e) as well Li RE distribution in A-sites determined. dopant was proven by ab initio calculations. most preferable (Bi1.5Li0.5)(Nb1.5Mg0.5)O7 model predicted a direct band gap 3.18 eV corresp...