Effect of <i>Chytriomyces hyalinus</i> on Industrial Wastewater Pre-Treated with Electrocoagulations in a Continuous System

Abstract

A strain of <i>Chytriomyces hyalinus</i> fungus was applied as a pretreatment on industrial wastewater pollutant using electrocoagulations column of aluminum electrodes in a continuous system. The parameters considered in this experiment include pH, conductivity, color, turbidity, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand) nitrate, nitrite, and SB (sporangia biomass). Biological and electrocoagulations treatments had the next conditions: <i>Chytriomyces hyalinus</i> solutions 1:10, 60 min of biological treatment, 50 mL/min flow, constant ventilations, 15 min of electrocoagulations time and 3.4 A of electrical current. Color and turbidity values dropped with a 90% efficiency (2700 to170 Pt-Co; 120 to10 FAU, respectively), COD 68% (2100 to 672 mg/L), BOD<sub>5</sub> 70% (650 to 195 mg/L), nitrate showed an 86% (3.8 to 0.5 mg/L), finally nitrite with a 60% amount reduction (1.5 to 0.6 mg/L). For SB parameter, there was a value rising as same as the treatment time (r<sup>2</sup> = 0.90) carrying out a y = 94.302<sup>e0.0356x</sup> model. These results reveal a positive outcome of <i>Chytriomyces hyalinus</i> on industrial wastewater pollutants pre-treated with aluminium electrocoagulations in a continuous system

Biological translocation of parathion methyl by Pilobolus sp. in corn microsystems

“…5b). This is directly related to the negative influence of the pesticide on the chlorophyll a, b, and carotenes concentration [10,[14][15][16][17]. By contrast, the treatment with Pilobolus inoculum did not show significant differences in the height of corn plants; therefore, the fungus might positively influence plants' growth and physiology [3,4,6,23,24].…”

“…In both treatments (exposed and unexposed to parathion methyl) corn plants have a 9% higher concentration of chlorophyll a, b, and carotenes when Pilobolus inoculum was applied (Fig. 4a), which suggests that Pilobolus inoculum has a positive impact on the physiology of corn plants exposed to parathion methyl [12,[14][15][16][17][18][21][22][23]. Corn plants exposed to parathion methyl without Pilobolus inoculum showed significant differences in chlorophyll a, b, and carotenes concentration with respect to those unexposed (Fig.…”

“…Corn plants unexposed to parathion methyl had a 30% higher concentration of chlorophyll a, b, and carotenes to exposed plants which suggest that parathion methyl presence in corn plants microsystems have a negative influence in corn plants physiology [6,[12][13][14][15]. Previous experiments have shown that corn plants exposed and unexposed to parathion methyl without fungal inoculum have a low concentration of chlorophyll a, b, and carotenes, compared to our results [6,[12][13][14][15]. The weight of corn plants exposed and unexposed to parathion methyl showed significant differences when Pilobolus inoculum was not applied; by contrast, corn plants inoculated with Pilobolus, did not show such differences (Fig.…”