The paper presents the results of a laboratory experiment mesophilic single-stage anaerobic digestion performed to verify possibility early detection process instability and reactor overload by evaluating course dissolved hydrogen concentration main intermediate. was run in Terrafors IS rotary drum bioreactor for 230 days. substrate dosed on weekdays food leftovers from university canteen. At a...

We have developed a synthetic approach to the self-assembly of [2]-, [3]-, and [4]rotaxanes, incorporating bis-p-phenylene-34-crown-10 as the ring component(s) surrounding bipyridinium-based dumbbell-shaped components bearing dendritic stoppers at both ends. As a result of the hydrophobic dendritic framework, these [n]rotaxanes are soluble in a wide range of organic solvents, despite the polyca...

BACKGROUND Animal models of focal cerebral ischemia are widely used in stroke research. The purpose of our study was to evaluate and compare the cerebral macro- and microvascular architecture of rats in two different models of permanent middle cerebral artery occlusion using an innovative quantitative micro- and nano-CT imaging technique. METHODS 4h of middle cerebral artery occlusion was per...

A combined pyrolysis and gasification process for sewage sludge was studied in this paper for the purpose of its safe disposal with energy self-balance. Three sewage sludge samples with different dry basis lower heat values (LHV(db)) were used to evaluate the constraints on this combined process. Those samples were pre-dried and then pyrolysed within the temperature range of 400-550 degrees C. ...

In this work, a model of gasification process that enables all, material and energy balance, calculation of gas composition, gas heating value and reactor temperature is presented. The model parameters were estimated by laboratory experiments. A fraction of MSW generally separated from inorganic materials and biodegradable components, so called Refuse-derived fuel (RDF), was studied by material...

Sustainable large-scale household food waste (HFW) reutilization is difficult worldwide. This study presents a systematic and in-depth analysis of the case Västerås, Sweden, where biogas has been produced from HFW for years utilized as renewable vehicle fuel. Various aspects are covered, including logistic flow, energy recovery, environmental benefits, cost-benefit analysis, social survey. In 2...

During the last decade, application of pretreatment has been investigated to enhance methane production from lignocellulosic biomass such as wheat straw (WS). Nonetheless, most these studies were conducted in laboratory batch tests, potentially hiding instability problems or inhibition, which may fail truly predicting full-scale reactor performance. For this purpose, effect an alkaline on proce...

An innovative twin auger pyrolysis reactor for the intermediate conversion of partially wet sanitary faecal sludge generated on train toilets (mobile applications) is designed and successfully commissioned. The effects operating temperature, feedstock feeding rates moisture content their interaction distribution properties product biofuels with use no carrier gas were assessed. Approximate yiel...

The biogas supply chain requires a correct combination of crops to maximize the methane yield per hectare. Field trials were carried out in North Italy over three growing seasons, according factorial four cropping systems (maize as sole-crop or after hybrid barley, triticale and wheat) two maize plant densities (standard, 7.5 plants m−2 high, 10 m−2) with harvested whole-crop silage. specific p...

The calorific value of household refuse (HR) is greatly improved after classification, which includes the implementation sufficient pyrolysis conditions. Therefore, a better effect can be achieved by co-pyrolysis with industrial solid waste (ISW) high value. In this work, HR and ISW were used as raw materials for experiments. influence on distribution three-phase products co-pyrolysis, concentr...