Industrial Water and Wastewater Technology (IWT)

Detailed project description: Plant development for automated extraction of particles from liquids with a low solid content by enrichment and drying (pdf/30kb)

Detailed project description: Photocatalytically active coatings for energy efficient water treatment in model-based reactors (pdf/49kb)

Detailed project description: Development of a detection method for the proof of activated carbon in wastewater effluents and other wastewater samples (pdf/60kb)

Detailed project description: Efficient and economic segregation of powdered activated carbon using hydrocyclones after removal of micropollutants and organic residues from municipal and industrial wastewater (pdf/134kb)

Detailed project description: Advanced wastewater treatment based on electro chemical processes – Development of the process “electro accumulation” for the treatment of urban and industrial wastewater for the removal of remaining solid particles, powdered activated carbon and microconstituents (pdf/110 kb)

Detailed project description: Weitergehende Abwasserreinigung mittels Elektroakkumulation - Entwicklung des Verfahrens der Elektroakkumulation zur kommunalen und industriellen Abwasserreinigung durch die elektrophoretische Sammlung und Abscheidung von Feststoffen kleiner 20 µm, Spurenstoffen, Mikroschadstoffen und Pulveraktivkohle (pdf/165 kb)

Almost all of the municipal waste produced in Thailand is dumped on "wild dumps". The Bangkok area alone produces almost 10,000 tons of fresh waste every day. The unsecured dumps represent a major burden on the local and global environment. Contaminated seepage water, odour pollution and the climate-damaging gases CO₂ and methane are emitted.

Based on the mechanical-biological waste treatment plant Kahlenberg, a pilot plant was designed within the scope of the project, which will later enable the construction of a robust, simplified and more cost-effective large-scale technology.

The pilot plant was installed in the province of Phetchaburi and fed daily with approx. 3 tons of fresh waste. This is shredded as a mechanical stage and then irrigated and biologically treated in the so-called BIOBUNK® reactor. The majority of the organic fraction is transferred to the aqueous phase, which has a high biogas potential. The solid and, so to speak, washed phase is mechanically pre-dewatered and then biologically dried without the use of energy. The dried output represents a high-calorific substitute fuel that can be used very well, especially in the cement industry.

The ambition of this research project is to find an economic, effective process to pro-duce bioplastic out of waste water. The state of the art of the bioplastic production is the basic idea of this project. Wastewater as raw material for the bioplastic production has not been an object of research so far and offers the opportunity to transform the waste water treatment plant into a bioplastic factory. Today, plastic is made out of unlasting crude oil. So it is obvious, that the production of bioplastic includes some benefits and fits to the main idea of sustainability. Bioplastic, for example, enables preservation of resources, is compostable and biodegradable.

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As a result of Prof. Menzel being appointed part of the expert-committees

• Abscheider und Mineralölhaltiges Abwasser -A-(428)
• Mineralölhaltiges Abwasser –B 3-(428c)
• Mineralölhaltiges Abwasser –B 4-(428d)

by the “Deutsches Institut für Bautechnik (DIBt)” in Berlin, the Institute for Sanitary Engineering, Water Quality and Solid Waste Management at the University of Stuttgart (IWT department) was then appointed as the official inspection office. The department is responsible for carrying out practical tests at different plants to ensure the reduction of hydrocarbon in wastewater containing mineral oil.