References of "Hansen, Joachim 50001938"
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See detailAssessment of the production of biodiesel from urban wastewater-derived lipids
Frkova, Zuzana UL; Venditti, Silvia UL; Patrick, Herr et al

in Resources, Conservation and Recycling (2020), 162

Production of biodiesel is one of the most important European targets within renewables for the future. To consider biodiesel a feasible alternative to fossil fuel, unconventional resources need to be ... [more ▼]

Production of biodiesel is one of the most important European targets within renewables for the future. To consider biodiesel a feasible alternative to fossil fuel, unconventional resources need to be exploited. This review aims to provide up-to-date knowledge on the existing reuse of lipids from urban wastewater to produce biodiesel. Lipids are readily removed by mixed microbial populations during wastewater treatments in sewage plants. Assessment results on potential annual European market supply indicate 3 – 414 104 tons (min for activated and max for grease trap sludge) of potentially extractable biodiesel from wastewater and an expected biodiesel demand of 14.8 106 tons. Considering the prospect of transforming sewage plants into biorefineries, we may cover on average 1.5, 6.2, 6.7 and 24.4% of activated, primary, scum and grease trap sludge respectively, of the European biodiesel market from wastewater-derived lipids. In addition, by implementing an optimized biotechnology selector, the overall biodiesel yield could be higher due to increased lipid incorporation into microbial biomass. This is not an insignificant amount and, if efficiently implemented, could represent an exploitable resource for biofuel production, an important and desired step towards a circular economy. The technology readiness level is still very low. There are several challenges and possible drawbacks, e.g., biogas yield loss, substrate depletion, or formation of floating sludge. Finally, no definitive legislative barriers towards wastewater-derived lipids have been identified; however, quality criteria as well as waste status have to be defined. [less ▲]

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See detailWOW! Sewage is valuable!
Frkova, Zuzana UL; Venditti, Silvia UL; Lacroix, Mark et al

Scientific Conference (2020, February)

There are market opportunities for raw materials from sewage, but for this the sewage treatment plants and the industry need alignment. This calls for a transition: sewage treatment plants need to switch ... [more ▼]

There are market opportunities for raw materials from sewage, but for this the sewage treatment plants and the industry need alignment. This calls for a transition: sewage treatment plants need to switch from treating sewage to producing valuable materials. On the other hand, market parties need to regard sewage as a valuable source instead of ‘dirty unsafe water’. Last but not least, the policies should better fit this new circular practice. To realize these opportunities WOW! aims to develop value chains for three different raw materials from sewage: cellulose, PHA bioplastics and lipids. [less ▲]

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See detailA review of nature-based solutions for resource recovery in cities
Kisser, Johannes; Wirt, Maria; De Gusseme, Bart et al

in Blue-Green System (2020), 2(1)

Our modern cities are resource sinks designed on the current linear economic model which recovers very little of the original input. As the current model is not sustainable, a viable solution is to ... [more ▼]

Our modern cities are resource sinks designed on the current linear economic model which recovers very little of the original input. As the current model is not sustainable, a viable solution is to recover and reuse parts of the input. In this context, resource recovery using nature-based solutions (NBS) is gaining popularity worldwide. In this specific review, we focus on NBS as technologies that bring nature into cities and those that are derived from nature, using (micro)organisms as principal agents, provided they enable resource recovery. The findings presented in this work are based on an extensive literature review, as well as on original results of recent innovation projects across Europe. The case studies were collected by participants of the COST Action Circular City, which includes a portfolio of more than 92 projects. The present review article focuses on urban wastewater, industrial wastewater, municipal solid waste and gaseous effluents, the recoverable products (e.g., nutrients, nanoparticles, energy), as well as the implications of source-separation and circularity by design. The analysis also includes assessment of the maturity of different technologies (technology readiness level) and the barriers that need to be overcome to accelerate the transition to resilient, self-sustainable cities of the future. [less ▲]

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See detailLarge-scale determination of micropollutant elimination from municipal wastewater by passive sampling gives new insights in governing parameters and degradation patterns
Gallé, Tom; Köhler, Christian; Plattes, Mario et al

in Water Research (2019)

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See detailVierte Reinigungsstufe für kleine und mittlere Kläranlagen
Hansen, Joachim UL

in Wasserwirtschaft Wassertechnik (2019), (4), 6-7

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See detailROLE OF TARGETED BIOCHAR-ACTIVATION IN THE REMOVAL OF MACRO- AND MICROPOLLUTANTS FROM SECONDARY EFFLUENT WASTEWATER
Brunhoferova, Hana UL; Venditti, Silvia UL; Hansen, Joachim UL

in Book of Abstracts 8th International Symposium On Wetland Pollutant Dynamics and Control (2019, January 30)

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See detailMikroschadstoffe im Sauer-Einzugsgebiet: Lösungswege abseits der klassischen Eliminationsverfahren
Hansen, Joachim UL; Knerr, Henning

Book published by Wasser - Infrastruktur - Ressourcen (2019)

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See detailVon Effizienz bis Flexibilisierung – ein erfolgreicher Weg mit viel Energie
Schäfer, Michael; Gretzschel, Oliver; Hansen, Joachim UL

in Siedlungswasserwirtschaft ‘from K’Town to ,KOSMOS‘ (2019)

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See detailInfluence of Macro-Substrate Composition in Wastewater on Micropollutant Removal
Christen, Anne UL; Gallé, Tom; Köhler, Christian et al

in the mobile app "MICROPOL 2019" (2019)

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See detailAssessment of the production of biodiesel from urban wastewater-derived lipids
Frkova, Zuzana UL; Herr, Patrick; Venditti, Silvia UL et al

Scientific Conference (2019)

By adopting a Circular Economy Package in 2015, European Commission aimed at stimulating transition towards a stronger and more circular economy where waste (including sewage) is no longer recognized as ... [more ▼]

By adopting a Circular Economy Package in 2015, European Commission aimed at stimulating transition towards a stronger and more circular economy where waste (including sewage) is no longer recognized as waste, but as a valuable resource of raw materials. This review study assesses the existing methodologies to produce biodiesel from wastewater-derived lipids. Depending on the stage of wastewater treatment where biodiesel would be extracted, it may cover up to 20% of the current European biodiesel demand. Further studies in regards to the biodiesel quality, legislative conditions and techno-economic assessment towards respective transition are needed. [less ▲]

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See detailSystematic monitoring by passive samplers on WWTPs provides new insights in micropollutant elimination, related process parameters and degradation pathways
Köhler, Christian; Gallé, Tom; Pittois, Denis et al

Scientific Conference (2019)

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See detailBioTOOL - a Readily and Flexible Biogas Rate Prediction Tool for End_users
Hien, Sebastian; Hansen, Joachim UL; Drewes, Jörg et al

in Environmental Modeling & Assessment (2018)

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See detailIdentifizierung von Optimierungspotenzialen bei Kläranlagen mit Faulung
Dilly, Timo; Knerr, Henning; Schmitt, Theo et al

in Wasser und Abfall (2018), 4

Es wurden Checklisten zur anlagenspezifischen Identifizierung von Optimierungspotenzialen für Kläranlagen mit Faulung entwickelt. Wesentliche Ziele sind die energetische Optimierung der Anlagen, die ... [more ▼]

Es wurden Checklisten zur anlagenspezifischen Identifizierung von Optimierungspotenzialen für Kläranlagen mit Faulung entwickelt. Wesentliche Ziele sind die energetische Optimierung der Anlagen, die Reduzierung der Schlammmengen für die Entsorgung und die Sicherstellung der Abwasserreinigung auf einem hohen Niveau. Ein Überblick über die Ansätze zur Optimierung bestehender Faulungsanlagen, die Checklisten sowie Ergebnisse bei deren Anwendung wird gegeben. [less ▲]

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See detailIs A Vertical Flow Constructed Wetland A Suitable Polishing Treatment For Micropollutant Removal In Medium-sized WWTPs? A Case Of Study
Venditti, Silvia UL; Hansen, Joachim UL

in 16th IWA Wetland System for Water Pollution Control, ICWS2018 (2018)

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See detailSK-DSSy: how to integrate the YouTube platform in a cooperative decision support?
Torregrossa, Dario; Hansen, Joachim UL

Book published by Springer Science & Business Media B.V. - ICDSST 2018. Lecture Notes in Business Information Processing, vol 313. Springer, Cham (2018)

In wastewater treatment plants (WWTPs) domain, the decision support tools are nowadays necessary in order to efficiently process the large databases generated with on-line sensors. In this paper a ... [more ▼]

In wastewater treatment plants (WWTPs) domain, the decision support tools are nowadays necessary in order to efficiently process the large databases generated with on-line sensors. In this paper a cooperative decision support system (DSS) is presented. This DSS uses a KPI-based fuzzy logic engine to analyse the plant performance and identify the operational conditions that occur in the plants. Then, it associates the detected operational conditions with YouTube pages in which videos are uploaded to provide details and propose suggestions. The YouTube platform is then used to share and validate suggestions by means of the comment functions and the 'likes'. This approach is innovative, free of costs, and useful for plant managers that can rely on a user-friendly platform. [less ▲]

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See detailA data-driven methodology to support pump performance analysis and energy effiency optimization in wastewater treatment plants
Torregrossa, Dario; Hansen, Joachim UL; Hernandez-Sancho, Francesc et al

in Applied Energy (2017), 208

Studies and publications from the past ten years demonstrate that generally the energy efficiency of Waste Water Treatment Plants (WWTPs) is unsatisfactory. In this domain, efficient pump energy ... [more ▼]

Studies and publications from the past ten years demonstrate that generally the energy efficiency of Waste Water Treatment Plants (WWTPs) is unsatisfactory. In this domain, efficient pump energy management can generate economic and environmental benefits. Although the availability of on-line sensors can provide high-frequency information about pump systems, at best, energy assessment is carried out a few times a year using aggregated data. Consequently, pump inefficiencies are normally detected late and the comprehension of pump system dynamics is often not satisfactory. In this paper, a data-driven methodology to support the daily energy decision-making is presented. This innovative approach, based on fuzzy logic, supports plant managers with detailed information about pump performance, and provides case-based suggestions to reduce the pump system energy consumption and extend pump life spans. A case study, performed on a WWTP in Germany, shows that it is possible to identify energy inefficiencies and case-based solutions to reduce the pump energy consumption by 18.5%. [less ▲]

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See detailMechanical characterisation of alkali activated clay - based geopolymer binder made out of gravel wash mud
Thapa, Vishojit Bahadur UL; Waldmann, Danièle UL; Wagner, Jean-Frank et al

Poster (2017, April 03)

One of the most promising cement alternatives are geopolymer cements. The term “geopolymer” was mentioned for the first time by Davidovits and classifies all forms of inorganic polymeric material ... [more ▼]

One of the most promising cement alternatives are geopolymer cements. The term “geopolymer” was mentioned for the first time by Davidovits and classifies all forms of inorganic polymeric material synthesised by chemical reaction of aluminosilicates and an alkaline activating solution. The production of geopolymer binder comprises in two main procedures: calcination and geopolymerisation. The synthesised geopolymer shows interesting characteristics like good mechanical properties, high strength and good durability. [less ▲]

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