1. Laboratory
for Operation Control and Research, Zweckverband Landeswasserversorgung, Am Spitzigen Berg 1, 89129 Langenau, Germany
2. Sustainable
Chemistry and Material Resources, Institute of Sustainable and Environmental
Chemistry, Leuphana University of Lüneburg, Scharnhorststraße 1/C13, 21335 Lüneburg, Germany