Comparative toxicity studies using unconfounded exposures can prioritize the selection of sensitive sentinel test species and can refine methods for evaluating ecological risks of complex constituents like naphthenic acids (NAs), a group of problematic organic acids associated with crude oils and energy-derived waters. Unconfounded exposures of NAs can be prepared with relatively stable and rep...

The feasibility of using constructed wetlands (CWs) for the mitigation of pesticide runoff has been studied in the last decade. However, a lack of related data was verified when subsurface flow constructed wetlands (SSF CWs) are considered for this purpose. In the present work, SSF CWs were submitted to continuous ametryn addition and evaluated during an 11-week period, with the aim of determin...

Hydrophytes are established bio-filters for a spectrum of pollutants and as such remediate gaseous contaminants as well. Carbon capture and sequestration (CCS) by virtue of aquatic plants at a local scale may manifest as invalid at the outset but the marine and inland water stretches do contribute a lot globally. A study pertaining to 15 emergent macrophytes represented by 10 families exhibited...

Industrial wastewater treatment comprises several processes to fulfill the discharge permits or to enable the reuse of wastewater. For tannery wastewater, constructed wetlands (CWs) may be an interesting treatment option. Two-stage series of horizontal subsurface flow CWs with Phragmites australis (UP series) and Typha latifolia (UT series) provided high removal of organics from tannery wastewa...

Abstract The present study gave a preliminary report on the phytofiltration of iron-contaminated waters and aggravation iron uptake by copper supplementation using Typha latifolia L. in constructed microcosms. During experiment, Fe concentrations reduced up to 1.67 ± 0.076 mg L −1 (94.43% removal efficiency) 0.087 0.013 (97.10% 14th day from initial 30 microcosm setups. Iron accumulation plant ...

Agricultural pesticide use is necessary to help meet the increased demand for a safe and secure food supply for the United States, as well as the global community. Even with proper application and careful management, the possibility of pesticide leaching and detachment in runoff still exists following certain storm events. Several different management practices have been designed to reduce the ...

The aim of this study was to investigate the performance of horizontal subsurface flow constructed wetlands planted with Typha latifolia treating tannery wastewater under long-term operation. Two expanded clay aggregates (Filtralite MR3-8-FMR and Filtralite NR3-8-FNR) and a fine gravel-FG were used as substrate for the constructed wetland units plus one unit with FMR was left as an unvegetated ...