Dr. Marco A. Garzón-Zúñiga
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Academic Career Length
31Years (1996-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 August 2013 in Water Science & Technology
Journal Article
JVJuan Manuel Vigueras-Cortés
Juan Manuel Vigueras-Cortés
IVIgnacio Villanueva
Ignacio VillanuevaMarco A. Garzón-ZúñigaJNJosé de Jesús Návar-Cháidez
José de Jesús Návar-Cháidez
ICIsaías Chaires-Hernández
Isaías Chaires-Hernández
César Augusto Hernández EspitiaAgave plants grow in semi-arid regions and are used for mescal production. However, agave fiber by-products are considered waste materials. Thus, we tested agave fiber as a filter media and biofilm material carrier for removing pollutants from municipal wastewater. Three laboratory-scale biofiltration reactors were used in two trials with five hydraulic loading rates (HLRs = 0.27, 0.54, 0.80, 1.07 and 1.34 m3 m−2 d−1). One series was conducted using mechanical aeration (0.62 m3 m−2 h−1). To prevent compaction, decreasing pressure and clogging of the filter media, 4, 8 and 12 internal divisions were evaluated in the biofilter column. After 17 months of continuous operation at an HLR of 0.80 m3 m−2 d−1, the removal efficiencies of the aerated biofilters were 92.0% biochemical oxygen demand, 79.7% chemical oxygen demand, 98.0% helminth eggs, 99.9% fecal coliforms and 91.9% total suspended solids. Statistical analysis showed that the chosen operational parameters significantly influenced the removal efficiencies of the biofilters. The effluent quality obtained under these conditions complied with the Mexican and US EPA standards for agricultural irrigation and green spaces, except for coliforms, which is why the effluents must be disinfected. Thus, agave fiber is a favorable choice for use as a packing material in biofiltration processes.
1 April 2005 in Environmental Technology
Journal Article
Marco A. Garzón-ZúñigaPLP. Lessard
P. Lessard
GAG. Aubry
G. Aubry
GBG. Buelna
G. Buelna
Biofilters using organic media are known to procure efficient treatment for different types of wastewater, but the nitrogen removal pathways implied are still not well understood. In this study, a lab-scale aerated biofilter using peat and treating pig manure was operated for 180 days, in order to quantify the nitrogen transformations occurring in it. It was shown that stripping was important during the start-up, until nitrification took place. Simultaneous nitrification and denitrification, proved by N2 production, became the principal mechanism after some time. The production of N2O did not seem to come only from heterotrophic denitrification, but also from chemodenitrification and autotrophic denitrification. It has also been found that part of the influent nitrogen was retained in the system during the first 150 days, due to filtration, sorption and assimilation. During the last periods of operation, the nitrogen previously retained has been used by microorganisms, leading to an excessive N2 discharge.
14 December 2015 in Water Science & Technology
Journal Article
DSD. B. Sosa-Hernández
D. B. Sosa-Hernández
JVJ. M. Vigueras-Cortés
J. M. Vigueras-Cortés
Marco A. Garzón-ZúñigaThe biofiltration system over organic bed (BFOB) uses organic filter material (OFM) to treat municipal wastewater (MWW). This study evaluated the performance of a BFOB system packing employing mesquite wood chips (Prosopis) as OFM. It also evaluated the effect of hydraulic loading rates (HLRs) in order to achieve the operational parameters required to remove organic matter, suspended material, and pathogens, thus meeting Mexican and U.S. regulations for reuse in irrigation. Two biofilters (BFs) connected in series were installed; the first one aerated (0.62 m3air m−2h−1) and the second one unaerated. The source of MWW was a treatment plant located in Durango, Mexico. For 200 days, three HLRs (0.54, 1.07, and 1.34 m3m−2d−1) were tested. The maximum HLR at which the system showed a high removal efficiency of pollutants and met regulatory standards for reuse in irrigation was 1.07 m3m−2d−1, achieving removal efficiencies of BOD5 92%, COD 78%, TSS 95%, and four log units of fecal coliforms. Electrical conductivity in the effluent ensures that it would not cause soil salinity. Therefore, mesquite wood chips can be considered an innovative material suitable as OFM for BFs treating wastewaters.
1 May 2016 in Revista Internacional de Contaminación Ambiental
Journal Article
URUnidad Durango Centro Interdisciplinario de Investigación Para el Desarrollo Integral Regional
Unidad Durango Centro Interdisciplinario de Investigación Para el Desarrollo Integral Regional
Marco A. Garzón-ZúñigaJZJazmín González Zurita
Jazmín González Zurita
RBRaúl García Barrios
Raúl García Barrios
UMUniversidad Nacional Autónoma de México Centro Regional de Investigaciones Multidisciplinarias
Universidad Nacional Autónoma de México Centro Regional de Investigaciones Multidisciplinarias
EVALUACIÓN DE UN SISTEMA DE TRATAMIENTO DOMÉSTICO PARA REÚSO DE AGUA RESIDUAL
2 August 2016 in International Journal of Phytoremediation
Journal Article
HGHéctor Daniel García-Mercadoa
Héctor Daniel García-MercadoaGFGeorgina Fernándezb
Georgina Fernándezb
Marco A. Garzón-ZúñigaMDMaría del Carmen Durán-Domínguez-De-Bazúaa
María del Carmen Durán-Domínguez-De-Bazúaa
Mexico's mercury mining industry is important for economic development, but has unfortunately contaminated soils due to open-air disposal. This case was seen at two sites in the municipality of Pinal de Amoles, State of Queretaro, Mexico. This paper presents an evaluation of mercury dynamics and biogeochemistry in two soils (mining waste soil) using ex-situ wetlands over 36 weeks. In soils sampled in two former mines of Pinal de Amoles, initial mercury concentrations were 424 ± 29 and 433 ± 12 mg kg−1 in La Lorena and San Jose, former mines, respectively. Typha latifolia and Phragmites australis were used and 20 reactors were constructed (with and without plants). The reactors were weekly amended with a nutrient solution (NPK), for each plant, at a pH of 5.0. For remediation using soils from San Jose 70–78% of mercury was removed in T. latifolia reactors and 76–82% in P. australis reactors, and for remediation of soils from La Lorena, mercury content was reduced by 55–71% using T. latifolia and 58–66% in P. australis reactors. Mercury emissions into the atmosphere were estimated to be 2–4 mg m−2 h−1 for both soils.
1 July 2008 in Water Science & Technology
Journal Article
PNP. Mijaylova Nacheva
P. Mijaylova NachevaGCG. Moeller Chávez
G. Moeller ChávezMarco A. Garzón-ZúñigaCBC. Bustos
C. Bustos
YOY. Hornelas Orozco
Y. Hornelas OrozcoPolyethylene (HDPE), of low density polyethylene (LDPE) and of polypropylene (PP), cubes of polyurethane (PU) and polyethylene tape (SESSIL). The bioreactors were operated in continuous regime, applying organic loads in the range of 0.8-6.0 g COD.m22.d21. The obtained specific COD removal rates were very similar in all the reactors when they were operated at organic loads up to 2.0 g COD.m22.d21, after which differences in effectiveness appeared and the best results were determined in the reactors with SESSIL, LDPE and PU. Very low TSS, O&G and turbidity were obtained in all the effluents. The NH3ZN and TN removals were dependant on the dissolved oxygen (DO) concentration and the removals at DO of 5 mg/l were 84-99% and 61-74% respectively. The best removals were determined in the reactors with PU, SESSIL and LDPE. The reactor with tezontle had also a good performance when operated with loads up to 1.0 g TN.m22.d21. The best phosphate removals (38-49%) were obtained in the reactors with PU, tezontle, ceramic sheres and SESSIL.
About Me
Background: 1. Degree in Biology (1990) National Autonomous University of Mexico (UNAM) with specialty in limnology and chemical quality of water. 2. Master in Biotechnology (1995) UNAM, specializing in municipal wastewater treatment by biofilm processes. 3. Diploma in Environmental Engineering (1996) University of Valladolid, Spain, specializing in biological treatment of industrial wastewater. 4. Doctorate in Civil Engineering (2001) Universidad Laval, Canada, specializing in agro-industrial wastewater biotreatment. Marco Garzón-Zúñiga has been technical responsible of 25 national projects and 4 international projects on research; technological development and technological services related to wastewater and has participated in other 23 national projects and 2 international projects. He is Author of 70 articles in extensive, on wastewater treatment, published in memories of specialized congresses with arbitration. He is Author of 33 scientific peer-reviewed papers in international journals (JCR). He has directed 18 postgraduate theses (4 of doctorate and 14 masters). He has developed and is author of 5 patents in México regarding with the development of WW treatment technologies. Two of these are commercialized by two Mexican companies.
Expertise: development of wastewater technology, biological process of WW treatment, biofiltration process, aerobic and anaerobic process, physical-chemical treatment and water reuse and management, biomethane and biohydrogen production.