takes maize growing rapidly to nitrate in groundwater by biogas boom
biogas plants, which are fed with maize, for many farmers a lucrative alternative to farming has become. Corn brings the greatest return to power, and hence the highest profit. The boom has, however, risks and side effects, so burdened the energy production from biomass, ground water, particularly with nitrate.
The development is of concern, warns the water Oldenburg-Ostfriesland, because the number of biogas plants grown explosively have. So be increased since 2004 in Lower Saxony, the cultivation of maize from an area of 30,000 to 200,000 hectares now. The trend is still upwards, particularly in South Oldenburg.
nitrate limits clearly exceeded
Since the cultivation of corn fertilized excessively and frequently during combustion in biogas plants only the carbon would be removed, most of the parts ended up at some point in the groundwater, according to the association. With the result that the nitrate limits are below 50 milligrams per liter in some places considerably, including in the counties of Oldenburg and Cloppenburg.
nitrate is considered to be agents for cancer
For the consumers were not the good news, because nitrate is a known carcinogen. The European Union therefore calls for reducing nitrate levels significantly by 2015, but the Water Board evaluated the project with skepticism. As long as the construction of biogas plants is perceived by the federal government's Renewable Energy Law massively subsidized, the flood of biogas plants is not to stop. The Association therefore proposes to pay subsidies only if the electricity will coupled with the heat consumption.
source http://www.radiobremen.de/wissen/nachrichten/wissennitratemais100.html
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