##  [Response of Typha domingensis During an Accidental Discharge of High Cr(Vi) Concentration in A Full-scale Treatment Wetland ](/resource/response-typha-domingensis-during-accidental-discharge-high-crvi-concentration-full-scale) 

Organization

[Universidad Nacional del Litoral (UNL)](/organization/universidad-nacional-del-litoral-unl)

[Consejo Nacional de Investigaciones Científicas y T´ecnicas (CONICET)](/organization/consejo-nacional-de-investigaciones-cientificas-y-tecnicas-conicet)

[Universidade Federal do Pará](/organization/universidade-federal-do-para)

[Polytechnic José Antonio Echeverría](/organization/polytechnic-jose-antonio-echeverria)

 

 

Resource Type

[Peer reviewed article](/taxonomy/term/37)

 

 

Author(s)

Hernán Hadad

María Mufarrege

Gisela Di Luca

Gabriela Sánchez

Sandra Caffaratti

María Maine

 

 

Original Authors

Hernán Hadad

María Mufarrege

Gisela Di Luca

Gabriela Sánchez

Sandra Caffaratti

María Maine

 

 

Contacts

[Hernán Ricardo Hadad](/contact/hernan-ricardo-hadad)

 

 

Resource Date:

2024

 

 

This work assesses the Cr accumulation and tolerance of [*Typha domingensis*](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/typha-domingensis) after an accidental discharge of wastewater that produced a concentration of Cr(VI) of approximately 120 mg L−1 in a free-water surface wetland. The wetland was constructed for the final [wastewater treatment](https://www.sciencedirect.com/topics/earth-and-planetary-sciences/waste-water-treatment) of a metallurgical manufacturing plant. It is 7 m wide, 20 m long, and waterproofed with a [geomembrane](https://www.sciencedirect.com/topics/earth-and-planetary-sciences/geomembrane). A 1.5 m soil layer was placed on top of the geomembrane. Water, plants, and sediment were sampled before and after an accidental discharge. The root anatomical measurements of the plants from the [treatment wetland](https://www.sciencedirect.com/topics/earth-and-planetary-sciences/treatment-wetland) were compared with those of plants from an uncontaminated wetland (control). Roots and dead leaves from the inlet plants showed the highest Cr concentrations after the accidental discharge (12.4 and 11.6 mg g−1, respectively). SEM-EDX mapping determined that Cr was accumulated in root epidermis. Cr accumulation in plant [detritus](https://www.sciencedirect.com/topics/earth-and-planetary-sciences/detritus), plant roots, and sediment were the mechanisms for Cr removal. Plants accumulated Cr in belowground tissues demonstrating their potential for [phytostabilization](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/phytoremediation). *T. domingensis* was capable of modifying its morphology to respond to high Cr concentrations. This macrophyte is a suitable species for [wetlands constructed](https://www.sciencedirect.com/topics/earth-and-planetary-sciences/constructed-wetland) for the treatment of a wastewater with high Cr(VI) concentration. The studied system was capable of minimizing the impact and preserving the environment.

*This resource is available on an external database and may require a paid subscription to access it. It is included on the CCLM to support our goal of capturing and sharing the breadth of all available knowledge pertaining to Boreal Caribou, Wetlands, and Land Management.*