The anaerobic digestion of organic waste for biogas production can be affected by some variables such as temperature; concentration of the biogas feed solution, bacteria populations, and pressure. This study investigated the effects of thermal pretreatment at 50, 75, and 100 ºC on the biogas produced by simultaneous anaerobic digestion of cow manure, mushroom waste, and wheat straw at thermophi...

Citation: Yeshanew MM, Frunzo L, Lens PNL, Pirozzi F and Esposito G (2016) Mass Loss Controlled Thermal Pretreatment System to Assess the Effects of Pretreatment Temperature on Organic Matter Solubilization and Methane Yield from Food Waste. Front. Environ. Sci. 4:62. doi: 10.3389/fenvs.2016.00062 Mass Loss Controlled Thermal Pretreatment System to Assess the Effects of Pretreatment Temperature...

Codling moth (Cydia pomonella (L.)) is targeted for postharvest control by quarantine regulations in Japan and South Korea and by phytosanitation concerns in Europe. Heat treatments may be used to control C. pomonella. But possible increase of heat resistance in insect pests, caused by pretreatment thermal conditions during harvest and storage periods, may compromise the efficacy of subsequent ...

background and objectives: red beet extract concentrate can be used as a natural colorant in food products; however, destructive effects of thermal methods to produce juice concentrate decrease nutritional value in the final product. materials and methods: in this study, red beet extract was concentrated using osmotic distillation method, and the best pretreatment was evaluated to increase the ...

This paper reviews pretreatment techniques to enhance the anaerobic digestion of organic solid waste, including mechanical, thermal, chemical and biological methods. The effects of various pretreatment methods are discussed independently and in combination. Pretreatment methods are compared in terms of their efficiency, energy balance, environmental sustainability as well as capital, operationa...

the effects of pulsed electric field (pef) on the cell disintegration of sugar beet were studied. field strength (0.5kv/cm to 6kv/cm), pulse number (1 to 100 pulses) and capacity of capacitors (0.5 f to 32 f) were evaluated on degree of cell disintegration and consumed energy in pef treatment. the field conditions of 1 and 2 kv/cm, 8 f with 20 and 10 pulses respectively disintegrated the cel...

The characteristics of waste activated sludge (WAS) were investigated by batch and continuous experiments using thermal pretreatment in the anaerobic digestion. The solubilization ratios of the chemical oxygen demand (COD), protein and carbohydrate increased as 14.8 21.5, 14.7 23.5, and 21 35 %, respectively. The ∼ ∼ ∼ maximum value of specific methane production was achieved at the thermal pre...

Waste activated sludge (WAS) originating from kraft pulp mill effluent treatment plants represents an important environmental challenge for this industry. Anaerobic digestion is a promising option WAS treatment, with the added benefit of biogas production. This paper presents application thermal, thermal-alkaline, and mechanical pretreatment methods in order to promote solubilization organic ma...

Background and Objectives: Red beet extract concentrate can be used as a natural colorant in food products; however, destructive effects of thermal methods to produce juice concentrate decrease nutritional value in the final product. Materials and Methods: In this study, red beet extract was concentrated using osmotic distillation method, and the best pretreatment was evaluated to increase t...

Effects of different pretreatment methods on sludge dewaterability and polycyclic aromatic hydrocarbons (PAHs) degradation during petrochemical sludge anaerobic digestion were studied. Results showed that the total biogas production volume in the thermal pretreatment system was 4 and 5 times higher than that in the ultrasound pretreatment and in the control system, and the corresponding volatil...