2026-10-12T13:49:52Zhttps://www.radar-service.eu/oai/OAIHandler

10.35097/z9df1nhc171jm5tj2026-10-09T10:54:21Zradar4kit

https://dx.doi.org/10.35097/z9df1nhc171jm5tj Lohfink, Kim Carina Jakob, Lucas Experimental data of continuous aqueous two-phase flotation (ATPF) with constant process parameters Karlsruhe Institute of Technology 2025 Engineering dataset Dataset info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Nirschl, Hermann Rhein, Frank This data set contains experimental data from continuous aqueous two-phase flotation (ATPF) experiments. The laboratory setup for data generation is described in detail in our previous publication (DOI: https://doi.org/10.1016/j.ces.2024.120287, KITopen-ID: 1000171714). The data-folder contains experimental data from continuous ATPF experiments (folder: exp_data) and additional raw data (folder: raw). The contents of each folder are described below: exp_data: Each data set of an experiment contains a meta-data file (.json-file) and a .csv-file with experimental data. The files contain the following data: - meta-data file: - cF_bot_0: feed concentration of enzyme in the bottom phase. - V_R: volume ratio of top phase to bottom phase. - online_measurement: set to "true" in case of online measurements. - experiment_type: the experiment type of all experiments in this data set is "constant_u", because all experiments were performed with constant gas flow rates and volume flows. - .csv file (analogous to our previously published dataset (DOI: 10.35097/pn5npep7vfjn92fe, KITopen-ID: 1000174648) - t: flotation time in min. - R_top, T_bot: recirculation of top and bottom phase (R=1: full recirculation; R=0: no recirculation (continuous operation mode)). - c_bot_3, c_top_3: enzyme concentration in compartment 3 in % (w/w). The top phase concentration is measured by online UV/Vis spectroscopy, while the bottom phase concentration is calculated by a mass balance equation). - kappa_bot_1, kappa_bot_2, kappa_bot_3: electrical conductivities in mS/cm. - Qd_bot, Qd_top: volume flows of each phase in mL/min. - Vd_1, Vd_2, Vd_3: volume flows of the gassing units in mL/min. raw: This folder contains measurement data of the mixing zone height at different gas flow rate combinations (Excel: raw data_height mixing.xlsx, CSV: raw data_height mixing.csv) and the Sauter mean diameter (Excel: raw data_sauter mean diameter.xlsx) for the three porous media glass membrane (v_d32_glass.txt), metal sieve (v_d32_metal.txt) and twill weave (v_d32_twill.txt). The Sauter mean diameters are the raw data from our previous publication (DOI: https://doi.org/10.1016/j.ces.2020.116391, KITopen-ID: 1000129339) Nirschl, Hermann Rhein, Frank https://publikationen.bibliothek.kit.edu/1000179949 application/x-tar