Listar por tema "Kinetic parameters"

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Multiparameter analysis of activated sludge inhibition by nickel, cadmium, and cobalt

Hernandez-Martinez, Gabriel R.; Ortiz, Daniela; Pérez, Michael E.; Urbina-Suarez, Nestor Andres; Thalasso, Frederic (Journal of Hazardous Materials, 2018-06-05)

Activated sludge processes are often inhibited by nickel, cadmium, and cobalt. The inhibitory effect of these heavy metals on a synthetic wastewater treatment process was tested through pulse microrespirometry; i.e., pulse ...
Removal of Organic Pollutants from San Pablo Farm Wastewater Using a Pilot-Scale Biological Treatment

Ortiz Alvarez, Maria Daniela; SUAREZ GELVEZ, JOHN HERMOGENES; Pérez, Michael Edgardo; González-Delgado, Angel Darío; Barajas Solano, andres F; Urbina-Suarez, Nestor Andres (Contemporary Engineering Sciences, 2017-12-24)

Biological treatment is the most common process used to treat organics-containing wastewaters from industrial, domestic and agricultural activities. This work aims to remove organic pollutants using pilot-scale biological ...

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Multiparameter analysis of activated sludge inhibition by nickel, cadmium, and cobalt
...
Hernandez-Martinez, Gabriel R. | 2018-06-05

Activated sludge processes are often inhibited by nickel, cadmium, and cobalt. The inhibitory effect of these heavy metals on a synthetic wastewater treatment process was tested through pulse microrespirometry; i.e., pulse of substrate injected in a microreactor system. The inhibitory effect was tested under different conditions including the heavy metals, substrate and biomass concentrations, and exposure time. The inhibitory effect was quantified by the percentage of inhibition, half saturation constant (KS), inhibition constant (KI), and maximum oxygen uptake rate (OURmax). The results indicated that, in a range of concentration from 0 to 40 mg L−1, the three heavy metals exerted an uncompetitive and incomplete inhibitory effect, with a maximum inhibition of 67, 57, and 53% for Ni, Co, and Cd, respectively. An increase of the biomass concentration by 620% resulted in a decrease of the inhibition by 47 and 69% for Co and Cd, respectively, while no effect was observed on Ni inhibition. An increase of the substrate concentration by 87% resulted in an increase of the inhibition by 24, 70, and 47% for Ni, Co and Cd, respectively. In the case of nickel and cadmium, an increase in the exposure time to the heavy metals also increased the inhibition.

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Removal of Organic Pollutants from San Pablo Farm Wastewater Using a Pilot-Scale Biological Treatment
...
Ortiz Alvarez, Maria Daniela | 2017-12-24

Biological treatment is the most common process used to treat organics-containing wastewaters from industrial, domestic and agricultural activities. This work aims to remove organic pollutants using pilot-scale biological treatment system based on activated sludge. In addition, physical, chemical and microbiological characteristics of San Pablo Farm wastewaters were determined through analyses such as COD, DO, VSS, TSS and BOD and kinetic parameters were calculated by monod model. It was observed a significant decrease of this contaminant load in wastewater, achieving removal yields of 98% of BOD, 93% of COD and 99% of total coliforms. Kinetic coefficients obtained at pilot-scale registered similar values to those described by other researches and reveal a good performance of activated sludge in wastewater treatment.

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Listar por tema "Kinetic parameters"

Multiparameter analysis of activated sludge inhibition by nickel, cadmium, and cobalt

Removal of Organic Pollutants from San Pablo Farm Wastewater Using a Pilot-Scale Biological Treatment

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Multiparameter analysis of activated sludge inhibition by nickel, cadmium, and cobalt

Removal of Organic Pollutants from San Pablo Farm Wastewater Using a Pilot-Scale Biological Treatment

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Listar por tema "Kinetic parameters"

Multiparameter analysis of activated sludge inhibition by nickel, cadmium, and cobalt ﻿

Removal of Organic Pollutants from San Pablo Farm Wastewater Using a Pilot-Scale Biological Treatment ﻿

Envíos recientes

Multiparameter analysis of activated sludge inhibition by nickel, cadmium, and cobalt

Removal of Organic Pollutants from San Pablo Farm Wastewater Using a Pilot-Scale Biological Treatment

Portales Institucionales

Multiparameter analysis of activated sludge inhibition by nickel, cadmium, and cobalt

Removal of Organic Pollutants from San Pablo Farm Wastewater Using a Pilot-Scale Biological Treatment