@article{fdi:010072420,
  title = {{B}ioturbation effects on bioaccumulation of cadmium in the wetland plant {T}ypha latifolia : a nature-based experiment},
  author = {{H}oang, {T}. {K}. and {P}robst, {A}. and {O}range, {D}idier and {G}ilbert, {F}. and {E}lger, {A}. and {K}allerhoff, {J}. and {L}aurent, {F}. and {B}assil, {S}. and {D}uong, {T}. {T}. and {G}erino, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he development of efficient bioremediation techniques to reduce aquatic pollutant load in natural sediment is one of the current challenges in ecological engineering. {A} nature-based solution for metal bioremediation is proposed through a combination of bioturbation and phytoremediation processes in experimental indoormicrocosms. {T}he invertebrates {T}ubifex tubifex ({O}ligochaeta {T}ubificidae) was used as an active ecological engineer for bioturbation enhancement. {T}he riparian plant species {T}ypha latifolia was selected for its efficiency in phytoaccumulating pollutants from sediment. {P}hytoremediation efficiency was estimated by using cadmium as a conservative pollutant known to bioaccumulate in plants, and initially introduced in the overlying water (20 mu g {C}d/{L} of cadmium nitrate {C}d({NO}3)(2)center dot 4{H}(2){O}). {B}iological sediment reworking by invertebrates' activity was quantified using luminophores (inert particulates). {O}ur results showed that bioturbation caused by tubificid worms' activity followed the bio-conveying transport model with a downward vertical velocity ({V}) of luminophores ranging from 16.7 +/- 4.5 to 18.5 +/- 3.9 cm.year(-1). {T}he biotransport changed the granulometric properties of the surface sediments, and this natural process was still efficient under cadmium contamination. {T}he highest value of {C}d enrichment coefficient for plant roots was observed in subsurface sediment layer (below 1 cm to 5 cm depth) with tubificids addition. {W}e demonstrated that biotransport changed the distribution of cadmium across the sediment column as well as it enhanced the pumping of this metal from the surface to the anoxic sediment layers, thereby increasing the bioaccumulation of cadmium in the root system of {T}ypha latifolia. {T}his therefore highlights the potential of bioturbation as a tool to be considered in future as integrated bioremediation strategies of metallic polluted sediment in aquatic ecosystems.},
  keywords = {{B}ioturbation ; {C}admium ; {S}ediment ; {P}hytoremediation ; {E}cological engineering ; {R}iparian plants ; {FRANCE}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {618},
  numero = {},
  pages = {1284--1297},
  ISSN = {0048-9697},
  year = {2018},
  DOI = {10.1016/j.scitotenv.2017.09.237},
  URL = {https://www.documentation.ird.fr/hor/fdi:010072420},
}