HR: 1400h
AN: GS23A-05    [Abstracts]
TI: Geo-environment studies applied to dumpsite remediation in a coastal river-lagoon system in southern Tamaulipas, Mexico.
AU: * RODRIGUEZ, P F
EM: prodrigueze@ipn.mx
AF: CICATA IPN CICATA IPN ALTAMIRA, KM 14.5 CARRETERA TAMPICO PUERTO INDUSTRIAL, ALTAMIRA, TAM 89600, Mexico
AU: SANCHEZ-ESQUEDA, G
EM: gsanchezt@uat.edu.mx
AF: FACULTAD DE INGENIERIA UAT, CENTRO UNIVERSITARIO TAMPICO-MADERO COL. UNIVERSIDAD, TAMPÍCO, TAM 89000, Mexico
AU: YAÑEZ, D
EM: dyanez@uat.edu.mx
AF: FACULTAD DE INGENIERIA UAT, CENTRO UNIVERSITARIO TAMPICO-MADERO COL. UNIVERSIDAD, TAMPÍCO, TAM 89000, Mexico
AU: GARCIA, G
EM: ggarcia2002202@hotmail.com
AF: INSTITUTO TECNOLOGICO DE CIUDAD MADERO, AVE. 1o. MAYO S/N PONIENTE COL. LOS MANGOS, MADERO, TAM 89440, Mexico
AU: FIERRO, A
EM: fierro@prodigy.net.mx
AF: FACULTAD DE INGENIERIA UAT, CENTRO UNIVERSITARIO TAMPICO-MADERO COL. UNIVERSIDAD, TAMPÍCO, TAM 89000, Mexico
AU: SALAS, B G
EM: bisalas@ipn.mx
AF: CICATA IPN CICATA IPN ALTAMIRA, KM 14.5 CARRETERA TAMPICO PUERTO INDUSTRIAL, ALTAMIRA, TAM 89600, Mexico
AU: MELO, A
EM: abdel_mx@yahoo.com
AF: CICATA IPN CICATA IPN ALTAMIRA, KM 14.5 CARRETERA TAMPICO PUERTO INDUSTRIAL, ALTAMIRA, TAM 89600, Mexico
AU: MELO, A
EM: abdel_mx@yahoo.com
AF: INSTITUTO TECNOLOGICO DE CIUDAD MADERO, AVE. 1o. MAYO S/N PONIENTE COL. LOS MANGOS, MADERO, TAM 89440, Mexico
AB: The "Isteta del Zapote" dumpsite, located in Tampico was used for this purpose approximately for 28 years (1978-2003). The Dumpsite is 42 ha, with thickness of waste of 3-9 meters. The site has approximately 2.5 millions tons of waste accumulated mostly from household waste. The dumpsite was recently (2004) closed and an inter-institutional remediation project with academic character was started in order to develop an Executive Project. The preliminary results of the geo-environment approach about geochemistry, geo-technical and geophysical correlations were focused in the vertical profile of sediments in the Zapote Dumpsite. The metal concentrations in the upper layer (0-2m) of this profile were 60-20 mg/Kg, while the metal concentrations in the lower layer (2-11m) were below 30 mg/Kg. These concentrations were correlated with the Plastic Index results among the ranges of 45 to 20%. A 75 to 38% of Liquid Limit corresponded to the upper layer. The Plastic Index and Liquid Limit were below to 30 and 50% in the lower layer, respectively. The resistivity results in the upper layer were 0.5-0.2 ohm-m, while an increase of values up to1.6 ohm-m in the lower layer was found. These results suggest the presence of a natural liner (seal layer) at least in the southwest front of the Zapote dumpsite.
DE: 1000 GEOCHEMISTRY
DE: 1051 Sedimentary geochemistry
SC: Geochemical Society [GS]
MN: 2007 Joint Assembly