Oving Phthalic acid Esters in an MWWTP The elimination efficiency (EE ) of 4-Piperidinecarboxamide custom synthesis target PAEs from the wastewater stream in an MWWTP supported by CWs was established as outlined by the procedure described in our previous paper  according to concentrations of phthalates in treated (Ctreated ) and untreated (Cuntreated ) sewage (Equation (2)): EE = (Cuntreated – Ctreated )/(Cuntreated ) 100 (2)This parameter enables the effectiveness of removing target PAEs inside the studied MWWTP to be described. four. Conclusions Within this study, the evaluation in the possibility of working with hydroponic cultivation for the removal of six phthalates: dimethyl phthalate (DMP), diethyl phthalate (DEP), din-butyl phthalate (DBP), benzyl butyl phthalate (BBP), di-n-octyl phthalate (DOP) and bis(2-ethylhexyl) phthalate (DEHP), inside a operating full-scale MWWTP is presented. 3 new plants, Cyperus Papyrus (papyrus), Lysimachia nemorum (yellow pimpernel) and Euonymus europaeus (European spindle), have been investigated for this objective. For the very first time, the uptake of PAEs by plants in a working full-scale MWWTP, which combines the strategy of biological wastewater remedy with AS and CWs, was determined. The established elimination efficiency (EE) from the target compounds from wastewater ranged from 0 (DOP) to 98 (DEP). The EE value for DMP was not determined due to its concentration in wastewater beneath the MDL values. Among the three tested plant species, 4 on the six target PAEs had been determined in C. papyrus (papyrus), and five in L. nemorum (yellow pimpernel) and E. europaeus (European spindle). Taking into consideration the sum on the uptake of the target PAEs by the plants, the highest uptake of phthalates was determined for E. europaeus (8938 ng g-1 dry QX-222 In Vitro weight), hence, this plant was located to be optimal for supporting conventional MWWTPs. In summary, the application from the MWWTP W method permits for a significant improve within the removal of DEP, DBP, BBP and DEHP from the wastewater stream.Supplementary Components: The following are accessible on the web: Table S1. Literature information concerning on the research of usefulness of hydroponically cultivated plants for removing target phthalic acid esters (PAEs) from sewage stream, Table S2. Literature information regarding around the determination of chosen PAEs in plant components, Table S3. Chemical structures and physicochemical properties of chosen phthalic acid esters (phthalates), Table S4. Principal technological parameters on the studied MWWTP (average values from 2017), Figure S1. Mass spectra of target compounds using the MS fragments assignation, Figure S2. Activated sludge chamber having a program of constructed wetlands inside the investi-gated Municipal Wastewater Remedy Plant in Sochaczew (Mazowieckie Voi-vodeship, Poland), Figure S3. Examples of total ion chromatograms (TICs) recorded for raw (A) and treated (B) wastewater samples, Figure S4. Instance chromatogram with marked SIM ions for determined target compounds in real Papyrus (Cyperus papyrus) samples, Figure S5. Example chromatogram withMolecules 2021, 26,16 ofmarked SIM ions for determined target compounds in genuine Yellow pimpernel (Lysimachia nemorum) samples, Figure S6. Instance chromatogram with marked SIM ions for determined target compounds in actual European spindle (Euonymus europaeus) samples. Author Contributions: Conceptualization, D.W., J.K., F.Q.; Formal evaluation, D.W.; Funding acquisition, D.W. and P.S.; Methodology, D.W. and B.T.; Project administration, J.K.; Resources, D.W.; Supervision,.