Reduction of metals in production plant's effluents by applying air Micro-Nanobubbles in a factory of Lead Acid Batteries of the district of Puente Piedra, Lima

Priscila Garcia, Jhonny Valverde Flores

Abstract


The Lima city has industrial areas that generate many industrial effluents that affect the public health and environment. The problem studied in a factory of Lead Acid Batteries located in Puente Piedra, Lima is, that it generates and discharges acidic wastewater (pH = 1.52). The research was experimental, at the laboratory level, to apply the treatment with Micro-Nanobubbles of air to these industrial waters, which contain metals such as Aluminum (14.967 mg / L) and Lead (4.227 mg / L), strongly acidic (pH 0.55). Then the pH was adjusted into two samples with Sodium Hydroxide 1 M until obtain acid (6.01) and basic (8.92) pH media in order to apply the Micro-Nanobubbles ( MNBs) into these samples. Micro-Nanobubbles were then generated by a device for Micro-Nanobubbles generation patented by PhD. Jhonny Valverde Flores. The air pressure was 90 PSI, the size of the MNB was 7 μm, the water flow was 4.67 L / min. Three samples (S1, S2, and S3) were dosed in 1 L each one. The volume ratio of water effluent / water with MNBs for S1 was 3/7, for S2 was 6/4 and for S3 was 7/3. The treatment lasted 8 minutes and as results of the research after applying MNBs, the Aluminum’s concentration in S1 decreased to 1,176 mg / L, in S2 decreased to 1,421 mg / L and in S3 decreased to 11,996 mg / L, achieving an efficiency of 92.14 %, 90.51% and 19.85%, respectively; And the Lead's concentration in S1 decreased to 0.264 mg / L, in S2 decreased to 0.065 mg/L and in S3 decreased to 0.116 mg / L, achieving an efficiency of 93.75%, 98.46% and 97.26%, respectively.

Keywords


micro-nanobubbles, metals, Lead, Aluminum, air

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References


Abate B, Valverde J. 2017. Reduction of thermotolerant coliforms present in the sea water by means of micro-nanobubbles of air-ozone of the beach Los Pavos, Lima, Peru. Journal of Chemical engineering Transactions, Volume 1, N° 1, pp. 1-5. ISBN 978-88-95608-47-1, ISSN 2283-9216.

Aldana, A. 2014. Removal of aluminum in sewage using macrophytes: An application for vetiver grass. Manizales, Colombia: University Catholic of Manizales.

Acceded 18.10.2016.

http://repositorio.ucm.edu.co:8080/jspui/bitstream/handle/10839/782/Erika%2 0Juliana%20Aldana%20Arcila.pdf?sequence=1

Cruz R. & Valverde J.. 2017. Reduction of Coliforms presents in domestic residual waters by Air-Ozone Micro-Nanobubbles In Carhuaz city, Peru. Nanoworld Conference-2017. Boston, USA.

Guerra, A. and Hiyagon, G. 2012. Water treatment to remove Lead using nanotechnology. Lima, Peru: University National of Engineering.

Lavado, C. and Sun, M and Bendezu, S. 2010. Adsorption of Lead from industrial effluents using activated H3PO4.Rev. Soc. Quím. Perú [online]. vol.76, n.2 [acceded 30.06.2016], pp. 165-178. http://www.scielo.org.pe/scielo.php?script=sci_arttext&pid=S1810-634X2010000200007&lng=es&nrm=iso>. ISSN 1810-634X.

Sadatomi, M., A. Kawahara, et al. 2007. An advanced microbubble generator and its application to a newly developed bubble-jet-type air-lift pump. Multiphase Science and Technology. 19(4): 323-342.

Tsuge, H. 2014. Micro and nanobubbles: fundamentals and applications. Pan Stanford Publishing. p.375 ISBN:978-981-4463-11-9

Valverde, J. 2016. Nanotechnology for the Environmental Engineering. In: First International Congress in environmental Engineering oriented to environmental technologies: 6th to 11th october. Lima, pp. 26.

WHO. 2015. Accessed 18.09.2016. http://www.who.int.




DOI: https://doi.org/10.32829/nanoj.v1i1.20

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