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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Jan 2014, 35 (1)                                                                                                             Back



nstantaneous and historical temperature effects on a-pinene

Tolerance of Myriophyllum aquaticum to exposure of industrial wastewater pretreatment with electrocoagulation and their

efficiency in the removal of pollutants 

 

Claudia Teodora Cano-Rodr?guez1, Gabriela Roa-Morales2*, Araceli Amaya-Ch?vez1,? Ricardo Antonio Vald?s-Arias1,

Carlos Eduardo Barrera-D?az2? and Patricia Balderas-Hern?ndez2

1Universidad Aut?noma del Estado de M?xico. Facultad de Qu?mica. Paseo Col?n intersecci?n Paseo Tollocan S/N. C.P. 50120,

Toluca, Estado de M?xico, M?xico

2Centro Conjunto de Investigaci?n en Qu?mica Sustentable (CCIQS) UAEM-UNAM. Carretera Toluca-Atlacomulco,

Km 14.5. C.P. 50200, Toluca, Estado de M?xico, M?xico

*Corresponding Author E-mail: groam@uaemex.mx

 

 

 

 

 Publication Data

Paper received:

12 September 2012

 

Revised received:

21 April 2013??????

 

Accepted:

05 September 2013

 

Abstract

 

The wastewater used in this study was obtained from a treatment plant where it mixed with wastewater of 142 industries and was treated using electrocoagulation with iron electrode and phytoremediation with Myriophyllum aquaticum, likewise certain biomarkers of oxidative stress of the plant were evaluated to find out its resistance to contaminant exposure. Electrocoagulation was performed under optimum operating conditions at pH 8 and with a current density of 45.45 A m-2 to reduce the COD by 42%, color 89% and turbidity 95%; the electrochemical method produces partial elimination of contaminants, though this was improved using phytoremediation. Thus the coupled treatment reduced the COD by 94%, color 97% and turbidity 98%. The exposure of M. aquaticum to electrocoagulated wastewater did not have an effect on the ratio of chlorophyll a/b (2.84 + 0.24); on the activity of SOD, CAT and lipoperoxidation. The results show the potential of M. aquaticum to remove contaminants from pretreated wastewater since the enzymatic system of the plants was not significantly affected.

 

Key words

 

Electrocoagulation, Myriophyllum aquaticum, oxidative stress, phytoremediation, Wastewater

 

 

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