丹麦奥胡斯大学2021年招聘博士后职位（环境化学方向）

Postdoc in Environmental Chemistry and Nature-based Solutions for Water Treatment

The Department of Environmental Science at Aarhus University, Roskilde, Denmark invites applications for postdoc position in Environmental Chemistry. The position is for two years with possibility for extension. The successful candidate will expand on a diversity of analytical tools to study the fate of a wide range of organic micropollutants in different nature-based solutions for water treatment. The position is to be filled as per May 1, 2021 or as soon as possible thereafter.

The postdoc will take part in two projects dealing with different types of water, different types of nature-based solutions for water treatment and ultimately support the uptake of the technologies:

1) A national MUDP project dealing with the development of biofilter systems to clean stormwater runoff (LAR vejbed). The project focusses on removal of PAH and biocides and involves interaction with a water utility, consulting companies and technology providers.

2) The H2020 project MULTISOURCE (ModUlar Tools for Integrating enhanced natural treatment Solutions in Urban water CyclEs), consists of 20 international partners, and includes research institutions, universities, small- and medium-sized enterprises, cities, and non-governmental organizations. The overall aim of MULTISOURCE is to develop planning tools for integrating nature- based treatment solutions into urban water cycles. The project includes technology pilots, developing business models for both public and private financing plans (focus on circular economy and replicability in different regions of the world), monitoring the technology pilots for priority pollutants and developing guidance for urban water reuse, and developing a framework for the long-term management, operation and maintenance of nature-based treatment solutions in urban water cycles. We are responsible for the work package dealing with the optimization and demonstration of seven pilot systems (from treatment wetlands to green roofs treating from raw wastewater to rainwater), and supporting the work package dealing with risk assessment.

Job description:

We seek to recruit an enthusiastic candidate to support the technology development and the analytical efforts needed on both projects. In the MUDP project we are expecting to mostly study the retention and potential biotransformation of PAHs on the biofilter systems. The candidate is expected to perform the PAH analysis (either LC or GC-based methods), further develop lab columns and pilot systems. Moreover, the postdoc is expected to interact with the project partners, either on the practicalities (e.g. obtain samples and provide data) but also contributing for the scientific discussions.

For the MULTISOURCE project, the pilots will be monitored for the removal of conventional pollutants, pathogens (E. coli, SARS-CoV-2), priority substances (heavy metals, polyaromatic hydrocarbons (PAH), biocides such atrazine and diuron) and contaminants of emerging concern (pharmaceuticals, neonicotinoid insecticides, and microplastics) using state-of-the-art methods. We will be centralizing all targeted analysis of priority and emerging organic contaminants from the seven project pilots (seven types of water and NBS technology), allowing for a great level of international networking and research activities with collaborators from seven countries (INRAE, France; NIVA, Norway; IRIDRA, Italy; ICRA, Spain; Rietland, Belgium; UFZ, Germany; and Montana State University, USA). Moreover, we expect that the candidate will also work on the non-target screening of unknown and new pollutants in the different pilots. This will also include the development of efforts to identify and characterize transformation products and processes. For that, both LC and GC high-resolution mass spectrometry (HRMS) is available. The obtained data will be used to assess potential reuse of treated water, including risk-assessment (to be performed by NIVA) by e.g. comparing concentrations of priority pollutants defined in the WFD with existing WFD regulations and benchmarks as well as future regulatory scenarios. The suitability of treated water to be reused for different urban applications (e.g. irrigation, toilet flushing) will also be assessed. There will be the possibility to participate in meetings with Environmental Agencies to discuss on topics such as regulation on minimum requirements for water reuse, national regulations, as well as future regulatory. Overall, the postdocs analytical work is expected to expand on the characterization of the fate or organic pollutants in nature-based treatment technology contributing for a significant advance in the field.

Specifically, the selected candidate is expected to: •Update, validate and run analytical methods for the analysis of organic micropollutants from environmental samples by GC-MS, LC-MS/MS and LC-HRMS.

•Quantify priority and emerging substances from the Water Framework Directive.

•Perform suspect screening and non-target analysis of HRMS data.

•Run short-term experimental mesocosms to potentially confirm environmental processes.

•Help with the logistical work of sampling and/or receiving samples from partners.

•Contribute to running of the analytical facilities in the section and help with supervision of PhD and Master students.

•Finally, the candidate is expected to publish the results and support reporting activities. Other dissemination activities will include presentations in national and international conferences.

Qualification requirements: •PhD degree in natural or technical science, preferably in Environmental Chemistry or Environmental Sciences

•Experience implementing LC-MS/MS and GC-MS methods for routine analysis of environmental samples is desirable

•Experience with high-resolution mass spectrometry and suspect screening and/or non-target screening workflows is desirable

•Experience with nature-based solutions (e.g. biofilters, constructed wetlands, green walls or green roofs) would be advantageous.

•Proven publication record in international peer-reviewed journals

•Excellent written and oral communication skills in English.

•The candidate is expected to be enthusiastic about working in an interdisciplinary academic environment, be well motivated and to be well organised.

•A driver licence would be advantageous to potentially support field work.

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