Advanced search
1 file | 444.05 KB

Heavy metal removal by combining anaerobic upflow packed bed reactors with water hyacinth ponds

(2012) ENVIRONMENTAL TECHNOLOGY. 33(12). p.1455-1464
Author
Organization
Abstract
The removal of four selected heavy metals (Cu, Cd, Pb and Zn) has been assessed in an upflow anaerobic packed bed reactor filled with porous volcanic rock as an adsorbent and an attachment surface for bacterial growth. Two different feeding regimes were applied using low (5 mg L-1 of heavy metal each) and high (10 mg L-1 of heavy metal each) strength wastewater. After a start-up and acclimatization period of 44 days, each regime was operated for a period of 10 days with a hydraulic retention time of one day. Good removal efficiencies of at least 86% were achieved for both the low and high strength wastewater. A subsequent water hyacinth pond with a hydraulic retention time of one day removed an additional 61% Cd, 59% Cu, 49% Pb and 42% Zn, showing its importance as a polishing step. The water hyacinth plant in the post-treatment step accumulated heavy metals mainly in the root system. Overall metal removal efficiencies at the outlet of the integrated system were 98% for Cd, 99% for Cu, 98% for Pb and 84% for Zn. Therefore, the integrated system can be used as an alternative treatment system for metal-polluted wastewater, especially in developing countries.
Keywords
sulfate-reducing bacteria, upflow anaerobic packed bed reactor, industrial wastewater, heavy metals, volcanic rocks, SULFATE-REDUCING BACTERIA, INDUSTRIAL WASTE-WATER, ACID-MINE DRAINAGE, GRANULAR SLUDGE, PHRAGMITES-AUSTRALIS, CONSTRUCTED WETLAND, AQUEOUS-SOLUTIONS, COLOR REMOVAL, REDUCTION, BIOREACTOR

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 444.05 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Sekomo, Christian Birame, Vedaste Kagisha, Diederik Rousseau, and Piet Lens. 2012. “Heavy Metal Removal by Combining Anaerobic Upflow Packed Bed Reactors with Water Hyacinth Ponds.” Environmental Technology 33 (12): 1455–1464.
APA
Sekomo, Christian Birame, Kagisha, V., Rousseau, D., & Lens, P. (2012). Heavy metal removal by combining anaerobic upflow packed bed reactors with water hyacinth ponds. ENVIRONMENTAL TECHNOLOGY, 33(12), 1455–1464.
Vancouver
1.
Sekomo CB, Kagisha V, Rousseau D, Lens P. Heavy metal removal by combining anaerobic upflow packed bed reactors with water hyacinth ponds. ENVIRONMENTAL TECHNOLOGY. 2012;33(12):1455–64.
MLA
Sekomo, Christian Birame, Vedaste Kagisha, Diederik Rousseau, et al. “Heavy Metal Removal by Combining Anaerobic Upflow Packed Bed Reactors with Water Hyacinth Ponds.” ENVIRONMENTAL TECHNOLOGY 33.12 (2012): 1455–1464. Print.
@article{3258700,
  abstract     = {The removal of four selected heavy metals (Cu, Cd, Pb and Zn) has been assessed in an upflow anaerobic packed bed reactor filled with porous volcanic rock as an adsorbent and an attachment surface for bacterial growth. Two different feeding regimes were applied using low (5 mg L-1 of heavy metal each) and high (10 mg L-1 of heavy metal each) strength wastewater. After a start-up and acclimatization period of 44 days, each regime was operated for a period of 10 days with a hydraulic retention time of one day. Good removal efficiencies of at least 86\% were achieved for both the low and high strength wastewater. A subsequent water hyacinth pond with a hydraulic retention time of one day removed an additional 61\% Cd, 59\% Cu, 49\% Pb and 42\% Zn, showing its importance as a polishing step. The water hyacinth plant in the post-treatment step accumulated heavy metals mainly in the root system. Overall metal removal efficiencies at the outlet of the integrated system were 98\% for Cd, 99\% for Cu, 98\% for Pb and 84\% for Zn. Therefore, the integrated system can be used as an alternative treatment system for metal-polluted wastewater, especially in developing countries.},
  author       = {Sekomo, Christian Birame and Kagisha, Vedaste and Rousseau, Diederik and Lens, Piet},
  issn         = {0959-3330},
  journal      = {ENVIRONMENTAL TECHNOLOGY},
  language     = {eng},
  number       = {12},
  pages        = {1455--1464},
  title        = {Heavy metal removal by combining anaerobic upflow packed bed reactors with water hyacinth ponds},
  url          = {http://dx.doi.org/10.1080/09593330.2011.633564},
  volume       = {33},
  year         = {2012},
}

Altmetric
View in Altmetric
Web of Science
Times cited: