Digestate Pasteurization Articles & Analysis
7 articles found
Why is the pasteurization of biomasses becoming more and more a required practice for biogas and biomethane plants? In many countries the regulations for specific biomasses (eg: animals and vegetables organic waste, industrial and municipal slurries, etc …) require that a pasteurization treatment be carried out before they are loaded into the ...
Scandinavian Biogas plans to increase production capacity at Scandinavian Biogas Södertörn from the current 80 to 120 GWh. The expansion will be completed by the end of 2021 and will include both an increased gas production capacity and a liquefaction plant where the produced gas is converted into liquid biogas (LBG). In connection with the development, a number of new process ...
ByBiokraft
Culturable concentrations of fecal coliforms were also measured by the membrane filter method. For thermophilic digestion, the reductions in total and viable E. coli cells from the digester influent to the effluent were significantly lower than those in culturable cells and fecal coliforms by two to four orders of magnitude. For mesophilic ...
The aim of this paper is to establish and quantify different operational goals and control strategies in autothermal thermophilic aerobic digestion (ATAD). This technology appears as an alternative to conventional sludge digestion systems. During the batch-mode reaction, high temperatures promote sludge stabilization and pasteurization. The ...
The aim of this study was to screen and evaluate the presence, and reduction, of pharmaceuticals and polycyclic aromatic hydrocarbons (PAHs) during anaerobic digestion of mixed primary and waste-activated sludge at 35, 55 and 60 °C and during pasteurization at 70 °C. ...
Another reason for increased use of heat recovery exchangers is due to recent energy cost increases and the introduction of pasteurization and anaerobic thermophilic digestion processes, as part of sludge digestion in municipal WWTPs. ...
ABSTRACT Thermal hydrolysis of sewage sludge as a pretreatment technique for producing a “Class A” sludge, with existing (or new) mesophilic anaerobic digestion systems are presently being considered for wastewater treatment plants in the USA and Canada. ...