Inst. Technischen Umweltschutz

146 Items

Recent Submissions
Direct contact membrane distillation of saline wastewater for recycling

Abdelkader, Sana (2018)

Freshwater availability is suffering from an increasing pressure created by the growing demand, depleting resources and the environmental pollution. Saline wastewater and saline industrial effluents are creating a complex issue due to their contribution in the pollution and the alteration of both surface water and groundwater properties. Thus, attention is drawn to investigating complete treatm...

Resource Efficiency Assessment—Comparing a Plug-In Hybrid with a Conventional Combustion Engine

Henßler, Martin ; Bach, Vanessa ; Berger, Markus ; Finkbeiner, Matthias ; Ruhland, Klaus (2016)

The strong economic growth in recent years has led to an intensive use of natural resources, which causes environmental stress as well as restrictions on the availability of resources. Therefore, a more efficient use of resources is necessary as an important contribution to sustainable development. The ESSENZ method presented in this article comprehensively assesses a product’s resource efficie...

Assessing the Availability of Terrestrial Biotic Materials in Product Systems (BIRD)

Bach, Vanessa ; Berger, Markus ; Finogenova, Natalia ; Finkbeiner, Matthias (2017)

Availability of abiotic resources has been a topic of concern in recent years, resulting in several approaches being published to determine their availability on country and product level. However, the availability of biotic materials has not been analyzed to this extent yet. Therefore, an approach to determine possible limitations to availability of terrestrial biotic materials over the entire...

Waste management and producer responsibility: a score behind - a new ahead

Rotter, Vera Susanne (2011)

In 2001, the Organisation for Economic Co-operation and Development (OECD) defined ‘extended producer responsibility’ (EPR) as ‘(...) an environmental policy approach in which a producer’s responsibility for a product is extended to the post-consumer stage of a product’s life cycle’. The aim was to encourage adoption of EPR principles such that manufacturers would design their products to optim...

Monitoring of Heavy Metals By Energy Dispersive X-Ray Fluorescence Spectrometry

Lorber, Karl E. (1986)

Fundamentals and salient features of a projected heavy metals monitoring system are discussed. Determination of mass concentrations is achieved by using a new dust emission monitor, consisting of a "Zero Pressure Probe" for isokinetic sampling, which is connected to a "Longitudinally Oscillating Band" mass detector. The thin dust layer, precipitated on the surface of heat resistant filter tapes...

Environmental evaluation of waste treatment scenarios for the towns Khanty-Mansiysk and Surgut, Russia

Kaazke, Julia ; Meneses, Montse ; Wilke, Berndt-Michael ; Rotter, Vera Susanne (2013)

Khanty-Mansiysk Autonomous Okrug – Ugra in Siberia has recently started to play a major role in the Russian economy because key oil and gas extraction sites are located in this region. As a result, the extensions of infrastructure and higher incomes have been leading to an accelerated population growth and consequent increase in the generation of solid household waste. The current methods of wa...

Results of the German Dioxin Measurement Programme At MSW Incinerators

Johnke, Bernt ; Stelzner, Eckhard (1992)

This paper described the findings and data resulting from the German National Dioxin Measurement Programme at 11 plants with 15 incineration units. The programme's main focus was to provide answers to the question of the causes of dioxins and furans formation in the plant and to look for ways to reduce dioxin and furan emissions, including waste management measures and technical measures taken ...

Data availability and the need for research to localize, quantify and recycle critical metals in information technology, telecommunication and consumer equipment

Chancerel, Perrine ; Rotter, Vera Susanne ; Ueberschaar, Maximilian ; Marwede, Max ; Nissen, Nils F. ; Lang, Klaus-Dieter (2013)

The supply of critical metals like gallium, germanium, indium and rare earths elements (REE) is of technological, economic and strategic relevance in the manufacturing of electrical and electronic equipment (EEE). Recycling is one of the key strategies to secure the long-term supply of these metals. The dissipation of the metals related to the low concentrations in the products and to the confi...

Status of pre-processing of waste electrical and electronic equipment in Germany and its influence on the recovery of gold

Chancerel, Perrine ; Bolland, Til ; Rotter, Vera Susanne (2011)

Waste electrical and electronic equipment (WEEE) contains gold in low but from an environmental and economic point of view relevant concentration. After collection, WEEE is pre-processed in order to generate appropriate material fractions that are sent to the subsequent end-processing stages (recovery, reuse or disposal). The goal of this research is to quantify the overall recovery rates of pr...

Prognosemodell zur Ermittlung von Auswirkungen des demografischen Wandels und der erweiterten Wertstofferfassung auf die Abfallströme und Behandlungskapazitäten

Kornau-Pitzer, Jasmin (2018)

Der demografische Wandel und der Ausbau der Wertstoff- und Biotonne haben einen grundlegenden Einfluss auf die Abfallmenge und Zusammensetzung und somit auch auf die quantitative und qualitative Auslastung der behandelnden Anlagen. Im Rahmen der vorliegenden Dissertation wurde ein Prognosemodell entwickelt mit dem die Auswirkungen der genannten Steuerungsgrößen auf die Abfallströme und behande...

TestTools – Entwicklung und Validierung von schnellen Testmethoden zum Spurenstoffverhalten in technischen und natürlichen Barrieren des urbanen Wasserkreislaufs

Zietzschmann, Frederik ; Stapf, Michael ; Sperlich, Alexander ; Ruhl, Aki Sebastian ; Miehe, Ulf ; Gnirß, Regnia ; Jekel, Martin (2018)

Das Verbundprojekt „TestTools“ hat vielfältige Untersuchungen zur Verwendbarkeit unterschiedlicher Testmethoden hinsichtlich des Spurenstoffverhaltens in natürlichen und technischen Barrieren durchgeführt. Entsprechend der gewonnenen Ergebnisse können die folgenden knapp zusammengefassten Aussagen getätigt werden. Zur Pulveraktivkohle-(PAK)-Dosierung im Labor sollten benetzte, entgaste Stamms...

Entwicklung eines Frühwarnsystems zur Steigerung der Raum-Zeit-Ausbeute einstufiger NawaRo-Biogasanlagen durch Additivzugabe

Schröder, Patrick (2018)

Zur Steigerung der Raum-Zeit-Ausbeute in einstufigen, landwirtschaftlichen Biogasanlagen wurden Versuche zur Entwicklung von Frühwarnindikatoren (FWI) für Prozessstörungen und von Maßnahmen zur Prozessstabilisierung, sowie zur Substratzusammensetzung durchgeführt. Ein neuer FWI wurde entwickelt, der A/elCon, das Verhältnis aus der Konzentration organischer Säuren (engl.: org. acids) zur elektr...

Conditioning fixed-bed filters with fine fractions of granulated iron hydroxide (µGFH)

Hilbrandt, Inga ; Ruhl, Aki S. ; Jekel, Martin (2018-09-25)

The fine fraction of granular ferric hydroxide (µGFH, <0.3 mm) is a promising adsorbent for the removal of heavy metals and phosphate, but properties of µGFH were hitherto not known. The present study aimed at characterizing µGFH regarding its physical and chemical properties and at evaluating methods for the conditioning of fixed-bed filters in order to develop a process that combines filtrati...

Entwicklung und Validierung eines Prüfverfahrens zur Bestimmung der Radon-222-Exhalationsrate aus Bauprodukten in VOC-Emissionsprüfkammern

Hofmann, Michael (2018)

This doctoral thesis describes the development and validation of a practical test procedure for the determination of the radon-222 exhalation rate from building materials under simulated indoor conditions. To ensure practical relevance, the test procedure is based on standardised and validated methods for the determination of emission of volatile organic compounds (VOC) from materials in emissi...

Analysing impacts on biodiversity within the framework of life cycle assessment

Winter, Lisa (2018)

The flora, fauna and their surrounding ecosystems on earth are drastically decreasing since the era of industrialisation. Currently, the extinction rate of species is measured to be between 0.01% and 0.1% per year and is expected to increase in the future. This decline of life on earth is influencing human well-being because humans are dependent on the services ecosystems provide. In order to c...

Assessment of abiotic and biotic resource use for products and regions in the context of sustainable development

Bach, Vanessa (2018)

Resources are the basis for a thriving industrial and technological development and therefore for prosperity of present and future generations. With increasing resource use, challenges with regard to (physical and socio-economic) availability of abiotic and biotic resources and raw materials, pollution of the environment as well as social impacts associated with resource extraction and use aris...

Optimierung der passiven Dialyse zur Inline-Probenvorbereitung in der Ionenchromatographie

Markeviciute, Inga (2018)

The focus of this Ph.D. Thesis is the instrumental improvement and optimization of a commercially available system for stopped-flow dialysis in hyphenation with ion chromatography. The two main aspects of the present thesis are the application of dialysis membranes permitting better separation of potentially interfering compounds and shortening of the dialysis time required to achieve concentra...

Application options of the Sustainable Child Development Index (SCDI) – assessing the status of sustainable development and establishing social impact pathways

Chang, Ya-Ju ; Lehmann, Annekatrin ; Winter, Lisa ; Finkbeiner, Matthias (2018-07-02)

The needs of children and their vulnerability to diseases, violence and poverty are different from those of adults. The Sustainable Child Development Index (SCDI) was thus developed in previous work to evaluate the status of sustainable development for countries with a focus on children and triple-bottom-line thinking. This study proposes application options to put the SCDI into practice. The S...

Optimierung der normgerechten Intensitätsbewertung und Untersuchung weiterer Referenzgerüche zur Qualitätssicherung

Brosig, Laura (2018)

For energy saving purposes buildings are constructed increasingly airtight. Due to insufficient ventilation emissions from building materials and products might accumulate indoors. Not only emissions of volatile organic compounds (VOC) may cause impact on health and well-being of occupants but odours as well. Therefore, their perceived intensity can be assessed based on acetone as reference sub...

Identifikation und Detektion von Indikatororganismen in technischen Systemen

Schleicher, Maria (2018)

Wasser ist ein essentieller Grundstoff für alle Organismen der Erde und damit einer der wichtigsten Ressourcen. Die Forschung auf dem Gebiet der Wasserwiederverwendung und Wasserrückgewinnung ist von enormer Bedeutung. Durch die Teilnahme an einem internationalen Forschungsprojekt entstand die Motivation, Überwachungs- und Kontrolloptionen für Desinfektionsprozesse weiterzuentwickeln. In der ko...