Tratamiento de Agua para Consumo Humano con Alto Contenido de Arsénico: Estudio de un Caso en Zimapán Hidalgo-México

Abstract

El presente estudio tiene por objeto demostrar que las propiedades fisicoquímicas de la roca Caliza Soyatal, localizada en la región de Zimapán Hidalgo (México), facilitan los niveles de adsorción de arsénico cuando la roca se pone en contacto con el agua contaminada, reduciendo considerablemente las concentraciones de dicho metal. Aunque la roca Soyatal contiene arsénico, las pruebas de desorción efectuadas indican niveles mínimos de dicho fenómeno. Las pruebas se realizaron usando torres empacadas con la roca Soyatal para eliminar el arsénico presente en el agua. Durante las pruebas de laboratorio se consideraron ciertas variables que determinan la eficiencia de remoción de arsénico: tamaño de partícula, tiempo de contacto, cantidad de roca y volumen de la muestra. A partir de los resultados, se puede concluir que esta investigación puede tener utilidad para implementar un tratamiento casero para tratar el agua de consumo humano proveniente del pozo Zimapán.

Removal of arsenic from semiarid area groundwater using a biosorbent from watermelon peel waste

“…On the other hand, there are also investigations that with other alternatives present lower percentages of removal of this element, for example, Tabaraki & Heidarizadi, (2018) [ 42 ], using a brown alga S. glaucescens presented a bioabsorption efficiency of 62.06% for As (III) and 71.82% for As (V); Verma et al (2019) [ 69 ], produced two citrus limmeta biosorbents, PAC-500 and PPAC-500, with which they eliminated 72.5% As (III), 76.4% As (V) for the first, and the second 61.7% As (III), 76.35% As (V); and Flores, (2009) [ 70 ], removed 89.45% arsenic with 1 g of Soyatal rock.…”

Biosorption of Arsenic(III) from Aqueous Solutions by Modified Fungal Biomass ofPaecilomycessp.

“…The mean results of water quality before and after biosorption of studied water samples are shown in Table 1 . The water sample studied area is highly contaminated with As (0.6 mg/L) due to a natural contamination of the subterranean water [ 32 – 34 ], which indicated that it was out of the maximum allowable limit for drinking water (0.05 mg/L), according to NOM-127-SSA1-1994. Currently, it is 0.025 mg/L, according to NOM-127-SSA1-1994-2000 (1994) [ 35 , 36 ].…”

Small-scale and household methods to remove arsenic from water for drinking purposes in Latin America

“…Garden polyethylene hose (1.27 cm diameter) packed with rocks with diameters ranging 0.84 to 1 mm decreased As content from 200 μg L −1 to 25 μL −1 in the first 2 min. However, the concentration in the outflow increased up to 100 μg L −1 As after one hour (Armienta et al, 2009;Flores et al, 2009).…”