The aim of this work was to evaluate the response a vinasse mesophilic anaerobic digester intermittent mixing. Physicochemical analysis were performed on digestate, and three samples collected at different depths, providing local insight before after mixing speed varied from 20 60 rpm. biogas production gradually increased with maximum 477 LCH4·kgCOD?1 Anaerobic digestion more destabilized high...

This study evaluated the co-digestion of domestic wastewater solids (WWS) and food waste (FW) at bench-scale for Yosemite National Park, California, which operates a 1900 m3/d treatment plant in El Portal, California. A 35-day biochemical methane potential test was performed on varying amounts FW as percentage total (WWS plus FW) volatile basis (%FW). Specific yield volumetric increased substan...

The potential degradation of di-(2-ethylhexyl) phthalate (DEHP) and organic matter of sewage sludge by composting was investigated using laboratory reactor at different operating conditions (E-1, E-2 and E-3). In all conditions, single stage thermophilic phase was observed within 2 days and almost, 60% of DEHP was degraded under this phase. At the end of composting, total DEHP degradation of mo...

The demand for energy has been promptly increasing due to rapid growing world population and increased growth of industries. In the pursuit of renewable energy production, the anaerobic digestion of organic wastes was a proved technology that is shaping up to be the one of the reliable source of alternate energy. Even though the anaerobic digestion is an effective method of renewable energy pro...

The management of anaerobic digestate is important to realize the value waste and enhance whole system sustainability digestion. In this study, phosphorus treatment dirty irrigation water by biochar samples derived from digestion were investigated. biochars further activated steam activation with different duration time KOH introducing ratios; textural properties optimized after aspect characte...

VERTADTM is an auto-thermophilic aerobic digestion process, employing a subsurface vertical reactor to aerobically digest mixed primary and secondary wastewater treatment solids. High metabolic activity results in heat generation, which enables the production of Class A Biosolids at short solids retention times (SRT). Currently the Technology Assessment Program of the King County Wastewater Tre...