B., Volatile solids reduction in two-phase and conventional anaerobic sludge digestion. Water Res. 1996, 30, 1041-1048.Bhattacharya S, Madura R, Walling D, Farrell J (1996) Volatile solids reduction in two-phase
digestionwasteactivatedsludgeVS/TSATPenzymeIn this study the effect of volatile to total solids (VS/TS) on anaerobic digestion of waste activated sludge (WAS) pretreated by alkaline, thermal and thermal–alkaline strategies was studied. Experimental results showed that the production of methane from ...
They set up oxidation reduction potential (ORP) in two different range: −100/-200 mV and −200/-300 mV, corresponding to a limited O2 presence and strictly O2 absence respectively. In order to find out the optimal fermentation conditions, two kinds of inocula were used: anaerobic ...
Excess sludge (ES) and plant waste (PW) are two typical organic solid wastes in urban areas, and their co-fermentation is one of the key strategies in the circular economy. This study innovatively investigated the impact of the oxidant potassium ferrate (PF) on the anaerobic co-fermentation o...
Recent advances in application of membrane bioreactors for anaerobic digestion have simplified the recovery of VFAs from the broth, by allowing continuous removal of a clear liquid fraction from the solids (Trad et al. 2015; Wainaina et al. 2019). However, the total VFA concentration in...
Thermophilicaerobicdigestionisaprocessdefinedasfollows: liquidsludgeisagitatedwithairoroxygentomaintainaerobic conditionsataresidencetimeof10daysandatemperatureof 55–60°Cwithavolatilesolidsreductionofatleast38%[1].Auto- thermalthermophilicaerobicdigestion(ATAD)isanestablished technologyforthetreatmentofsludgegenerate...
A semi-empirical model has been developed to predict the volatile solids reduction (VSR) in the anaerobic digestion process under a variety of operating processes. The model's predictive capability was compared with the performance of 34 full-scale anaerobic digesters divided into 7 technologies. ...
Therefore, dual digestion (anaerobic/aerobic) would be expected to provide volatile solids reduction beyond that achieved by either anaerobic or aerobic digestion alone. In this investigation, dual digestion was compared to single stage anaerobic digestion using both mesophilic (35掳C) and thermophilic ...
A review of pretreatment methods to enhance solids reduction during anaerobic digestion of municipal wastewater sludges and the resulting digester performance: implications to future urban biorefineries Appl. Sci., 10 (2020), p. 9141, 10.3390/app10249141 Google Scholar [124] H. Liu, J. Wang, X....
Another quality product that can be produced from the spent solids/liquids is biofertilizer. This includes digestate/soil conditionerproduced through anaerobic fermentation; compost resultant from aerobic composting; and soluble bio-waste substance from chemical hydrolysis. The substitution of synthetic fertili...