Li, Jianhua Effect of manganese oxide-modified biochar addition on methane production and heavy metal speciation during the anaerobic digestion of sewage sludge. [electronic resource] - Journal of environmental sciences (China) Feb 2019 - 267-277 p. digital Publication Type: Journal Article ISSN: 1001-0742 Standard No.: 10.1016/j.jes.2018.05.009 doi Subjects--Topical Terms: Anaerobiosis--drug effectsBioreactors--microbiologyCharcoal--chemistryHydrogen-Ion ConcentrationManganese Compounds--chemistryMethane--biosynthesisOxides--chemistrySewage--chemistryWaste Disposal, Fluid