Curiosidades

1) Biodiesel runs in any conventional, unmodified diesel engine. No engine modifications are necessary to use biodiesel and there is no “engine conversion.” In other words, “you just pour it into the fuel tank.” 2) Biodiesel can be stored anywhere that petroleum diesel fuel is stored. All diesel fueling infrastructure …

Overall biodiesel emissions are lower than gasoline or diesel fuel emissions (with the exception of NOx, which we discuss on the next page). Compared to diesel, biodiesel produces no sulfur, no net carbon dioxide, up to 20 times less carbon monoxide and more free oxygen. Biodiesel has the following emissions …

The process of converting vegetable oil into biodiesel fuel is called transesterification and is luckily less complex than it sounds. Chemically, transesterification means taking a triglyceride molecule, or a complex fatty acid, neutralizing the free fatty acids, removing the glycerin, and creating an alcohol ester. This is accomplished by mixing …

As embalagens biodegradáveis são uma das mais recentes alternativas que vêm despertando o interesse de pesquisadores brasileiros. As tradicionais embalagens de plásticos sintéticos, embora garantam a proteção desejada para diversos tipos de produtos, causam sérios problemas ao meio ambiente por não serem biodegradáveis. Na Unicamp, o assunto está sendo estudado …

Biodiesel production in Europe Not only in the US but also in Europe is biodiesel is becoming increasingly popular as an alternative to mineral oil-based fuel. In Europe around 50 manufacturers produce approximately 1.5 million tonnes of biodiesel, with a total capacity of around 2.1 million tonnes Germany is the …

The European Union can cut a third of its greenhouse gas emissions by 2020 through energy efficiency and renewable energies, as well as through a strong emissions trading system, says WWF. A new report written by the Wuppertal Institute for WWF – Target 2020: Policies and measures to reduce greenhouse …

Despite numerous calls from EU Member States, the European Parliament and a broad range of stakeholders, the European Commission has recently confirmed its decision to abandon the idea of an independent directive on biowaste. A group of interested parties had been lobbying for such a directive, maintaining that it would …

The Department of Health‘‘s new consultation document "Safe Management of Healthcare Waste" has been produced as a best practice guide to the management of healthcare waste taking into consideration the requirements of Waste, Health & Safety and Carriage (Transport) Regulation. The guidance builds on existing guidance and is intended to …

Waste management gets up the noses of local people: "There may be a genuine causal link between the landfill site and people complaining of symptoms of nasal irritation". North Sheffield Primary Care Trust (PCT) has released the second report of its Health Impact Assessment of the Parkwood Landfill site, which …

Xylan is one of the most common carbohydrates in nature present in both hardwood and annual plants such as barley, rye, wheat and maize. Chalmers University of Technology reports that soon xylan will be able to replace aluminium and polymers in packing. Despite the fact that xylan exists in these …