08.10.2013

KTU APINI presents ENERCOM at ISWA World Congress 2013 in Vienna

Associate professor of the Institute for Environmental Engineering (APINI) at KTU Irina Kliopova... [more]


01.09.2013

ENERCOM partner KTU APINI elaborated modules for international master course

The Study module program (SPM) “Renewable energy resources and their usage possibilities” was... [more]


29.08.2013

Gasifier unit brought into position

The fluidized bed gasifier as the third core component of the polygeneration pilot plant within the... [more]


Background

For the year 2005, it is estimated that about 9  million tons of sewage sludge will be produced in the European member states. Other sources even speak of more than 9.4 million tons of dry matter in 2005 and an increasing tendency for the following years. Sewage sludge is the result of waste water treatment processes from domestic, trade and industrial sources. It can be described as the residue generated during the primary (physical and/ or chemical), the secondary (biological) and the tertiary (nutrient removal) treatment. The sludge consists of water and solid materials originating from the human metabolism or other substances from household or industrial activities.
Currently, major parts of sewage sludge and composts are used for fertilization in agriculture. As the effects of the substances contained in sludge like PCB, AOX, heavy metals or hormones aren’t yet completely identified this type of utilization is increasingly rejected by consumers and national legislations.
The technology proposed to be demonstrated here can be applied to any sludge and organic matter treatment plant on an EU wide level (about 3.000 existing plants with a potential of renewable energy equivalent of 70 TWh) as well as world wide. This know-how will be transferred through the SME to this target group by media and fairs, expanding by that way their market presence.
The proposed activity contributes to the implementation of the EU policies on sewage sludge, water and soil (i.e. 2000/60/EC, 86/278/EEC). By re-using residues as fuels the absorption capacity of the environment will be protected. Soil and groundwater pollution by heavy metals, PCB, AOX and other substances contained and emitted by the sludge will be stopped when sewage sludge and composts are not used in agriculture any more.