Projects & Publications

Turbinenraum des Biomasseheizkraftwerks Pfaffenhofen
Biomass Combined Heat and Power Station Pfaffenhofen
© BMU / Bernd Müller

This section provides information on project descriptions and publications detailing the best available environmental technology in Germany today. The projects published by Cleaner Production Germany are mainly national case studies on environmental protection which has been integrated into the production process. These projects are sponsored by Germany’s national and regional ministries, Länder-level agencies, or foundations with a governmental mandate. They include, for example, in-depth descriptions of large-scale projects sponsored and verified by Germany’s Environment Ministry (BMU) and Federal Environment Agency (UBA) which demonstrate new ways of avoiding environmental pollution or reducing it significantly. The German Ministry of Education and Research also publishes the results of its research into innovative technologies to protect the environment here.

The section is rounded off by publications (final project reports and research papers) for download and information regarding statutory regulations and specialist events.


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In comparison with completely stirred installations, the plug flow process has reduced chemical oxygen demand (COD) by 10 – 15%. The treatment of older sludge has resulted in more extensive COD elimination. For denitrification and biological phosphate elimination, this process has also shown clear advantages over conventional practices. Expand…
Keywords:  activated sludge process, dissolved organic carbon, activated sludge, activated sludge plant More keywords , dependence on age, phosphate removal, oxygen demand, denitrification, decomposition, guide level, waste water purification, reactor, residual product, drinking water treatment, river filtrate, outfall, balancing, waste water
The waste water loaded heavily by the waste water from the Textilfaerbereien is biologically cleaned and subsequently treated by means of a combined application of activated carbon adsorption, chemical precipitation/flocculation and filtration (AFF procedure). The visible color could be eliminated, the biologically nondegradable, organic substances including the organic halogen compounds and the phosphorus could be substantially reduced. Expand…
Keywords:  tertiary purification of sewage, industrial effluent, textile industry, precipitation More keywords , flocculation, coagulation, activated carbon, waste water purification, waste water treatment, sewage treatment plant, sewage plant, activated sludge, secondary treatment of sewage, chemical sewage treatment, decolouration
By the parallel operation of a submersed and a fixed bed plant according to the alternating denitrification procedure the transferability of this N-elimination procedure to the fixed bed technology was examined. Also, the suspensa elimination performance as well as the observance of effluent values for filterable materials were compared in both procedures. The procedure of the alternating denitrification could be installed with satisfying results on the fixed bed plant. The ammonium degradation was heavily affected by the suitable procedure, in particular the correct combination of inlet quantities and duration of phase times (detailed information in German).
Keywords:  biological wastewater treatment, tertiary purification of sewage, fixed bed reactor, pollutant degradation More keywords , pollutant elimination
Using the technology mentioned above the purification efficiency concerning organic waste load and nitrogen does in no way lack behind that of modern large-sized sewage treatment plants. Investment and running cost as well as technological expenditures are comparable with sewage plants without advanced treatment. Expand…
Keywords:  tertiary purification of sewage, septic tank, packaged treatment plant, activated sludge plant More keywords , fluidized bed, slime
The project’s object of research is the technical transfer of the marine water body monitoring system MERMAID to a tropical estuary in Indonesia. The advanced version of the technology facilitates recording and evaluating water quality to provide a basis for further measures that contribute to maintaining the local biodiversity and economy. Expand…
Keywords:  estuary, quality of waters, river basin, biological diversity More keywords , measuring station
The goal of the project was the optimization of the denitrification by feeding waste water into deeper soil layers at Subterra plants. The measurements showed an average degradation of the waste water components by 96%. Further, the testing of various substrates for an improvement of the habitat of the micro organisms was successfully accomplished (detail information in German).
Keywords:  biological wastewater treatment, clarification basin planted with water plants, pollutant degradation
Since the activated carbon treatment, particularly with DCE and VC cases of damage, exhibits some serious disadvantages, the Fraunhofer Institute for Interfacial and Bio Process Engineering – IGB has developed a procedure for the biological reorganization of these cases of damage. The VCH are subject to a cometabolic degradation, which leads to the complete mineralization. Ethylene, which is analogous in structure to chloroethylenes, is used as auxiliary substrate (growth substrate).
Keywords:  chlorinated hydrocarbon, pollutant degradation, biological method, groundwater decontamination
This German-language article describes in four chapters research activity concerning the perfect agricultural crop. This crop should survive with little water, resist cold and warm temperatures without loss of yield, independently fight off pests without having to be treated with pesticides and survive in salty soil.
Keywords:  agriculture, farming, soils, cash crop More keywords , plant protection product, vermin, parasite
Herbicides containing micro-organisms or their products are now used worldwide under the generic term of biopesticides. Among these products manufactured using biotechnological methods, the toxin of the soil dwelling bacterium Bacillus thuringiensis, mycoherbicides (such as Colletotrichum gleosporioides and Phytophtora palmivora) and the herbicide bialaphos are of particular commercial relevance. More information is provided in the following German-language article.
Keywords:  agrochemical, bacterium, bacillus, herbicide More keywords , bacillus thuringiensis, microorganism
Various methods are currently available for utilising low-grade heat to air-condition buildings. The use of solar energy is particularly attractive due to the relative synchronisation of cooling loads and high solar radiation – at least in relation to the seasons. ONLY AVAILABLE IN GERMAN
Keywords:  air conditioning, inside air, solar energy use, thermal solar plants More keywords , refrigerant, cooling, solar energy plant, solar collector, systems technique, energy conservation
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