Determinación de coeficientes de degradación de materia orgánica en el rio Negro (municipio de Rionegro, Colombia)

Hoyos, Carlos Augusto Benjumea

doi:10.21931/rb/2018.03.01.10

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…On the other hand, the points from P6 to P8 showed low BOD values from 0.25 to 0.85 mg/L in the rainy season, while in the dry season the values reached up to 28.69 mg/L. These areas have a high populational density and in most cases the wastewater and solid waste are thrown off into the river, which favors the increase of BOD [39].…”

Section: DL (Detection Limit)mentioning

confidence: 96%

“…In P1, P2 and P3, it is observed that the BOD is not detectable (< D.L.) (Table 6), since around these points there are no dwellings that can produce waste, there are low agricultural and livestock production, and little presence of vegetation, therefore a low presence of carbonaceous matter [39]. Regarding P4 and P5 (from 2916 to 2872 m of altitude), these points have a low populational density, but they develop intensive agricultural and livestock activities, using pesticides and herbicides without control [6], whose residues are transported to the river by runoff or irrigation of residual water, considerably affecting the microflora and microfauna of river water, which could inhibit the decomposition and degradation of the organic matter [40,41]; this same behavior occurs in P8 in the dry season.…”

Section: DL (Detection Limit)mentioning

confidence: 99%

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Water pollution index of high Andean micro-basin of the Chumbao River, Andahuaylas, Peru

Choque-Quispe

Ramos-Pacheco

Ligarda-Samanez

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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During its journey, the river water suffers natural or anthropic contamination, deteriorating its quality. This impact can be qualified by determining the pollution Indexes (IPO). The work aimed to evaluate the spatial and temporal variation of the IPOs in the water of the high Andean micro-basin of the Chumbao River. The study included the section from 13°46'38.4” S, 73°15'32.3” W at 4079 m of altitude up to 13°35'26.4” S, 73°27'00.8” W at 2572 m of altitude. Physical, chemical, and microbiological parameters of the water were determined in 8 points along the river. These were grouped to calculate the IPO by mineralization (IPOMI), organic matter (IPOMO), suspended solids (IPOSUS), and trophic (IPOTRO) in the dry and rainy seasons. The indexes were categorized from 0.0 (not polluted) to 1.0 (highly polluted). The data were collected in triplicate and valuated through ANOVA and Tukey's test. It was found that IPOSUS, IPOMI, and IPOMO. The points near the head of the micro-basin reported no and low pollution; besides, they increased considerably in urban areas reaching highly polluted levels. In contrast, IPOTRO reported a eutrophic state, and that contamination levels were higher in the dry season. The waters of the Chumbao River above 2900 m of altitude and close to the head of the micro-basin do not show contamination, but in the urban area the index of pollution is high.

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Section: DL (Detection Limit)mentioning

confidence: 96%

Section: DL (Detection Limit)mentioning

confidence: 99%

Water pollution index of high Andean micro-basin of the Chumbao River, Andahuaylas, Peru

Choque-Quispe

Ramos-Pacheco

Ligarda-Samanez

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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Variación espacial y temporal de nutrientes y total de sólidos en suspensión en la cuenca de un río de alta montaña tropical

Hoyos

Suárez-Segura

Villabona-González

2018

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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Los sistemas de aguas dulces son sensibles a modificaciones antrópicas. Las actividades diarias allí en donde el agua es un recurso imprescindible para la industria y el ámbito doméstico aceleran el proceso natural de eutrofización en los ecosistemas acuáticos con el consecuente deterioro de su calidad. Con la finalidad de entender los cambios en el tiempo y el espacio de las concentraciones de nutrientes (nitrógeno y fósforo) y del total de sólidos en suspensión (TSS) en el río Negro, se recolectó la información en los tramos alto, medio y bajo de la cuenca en las épocas de sequía, durante la transición de la época de lluvias a la sequía y en la época de lluvias desde el 2010 hasta el 2014. Se encontró que las quebradas La Pereira, La Cimarrona y La Marinilla, afluentes del río Negro, son focos de interés ambiental, dado que presentaron mayores concentraciones de nutrientes y de sólidos en suspensión que afectan de manera notoria las aguas del río, en especial en el tramo conocido como Puente Autopista-RN5, donde estas convergen. Además, se evidenció que los fenómenos de variabilidad climática, como el sistema de El Niño-Oscilación del Sur (ENOS) en su fase invernal (La Niña), incrementan notablemente las concentraciones de sólidos en suspensión y que los periodos de sequía favorecen el aumento en las concentraciones de nutrientes. © 2018. Acad. Colomb. Cienc. Ex. Fis. Nat.

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Evaluation of the operation of the stabilization pond for agricultural irrigation purposes

Guerra Hernández,

Brown Manrique,

García Alvarez

et al. 2023

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Improving the quality of residual water and increasing agricultural production is necessary to achieve food sovereignty in water deficit conditions. The research was carried out to evaluate the operation of the precision lagoon for agricultural irrigation purposes by determining the geometric and hydraulic parameters, kinetic coefficients and dissolved Oxygen using the Streeter & Phelps model. The main results indicate the presence of a facultative lagoon with a hydraulic retention time of 6.7 days, flow rate of 1 641,6 m3 day-1 contributed by 41 312 inhabitants, solar penetration of 0.20 m, presence of green algae, 0,36 day-1 deoxygenation coefficient, 0,60 day-1 reaeration coefficient, 0,09 day-1 sedimentation coefficient, 0,45 day-1 total removal coefficient, dissolved Oxygen of the effluent of 2 mg L-1, initial dissolved oxygen deficit of the influent and effluent of 8,4 mg L-1 and 2,43 mg L-1 respectively. These indicate that the effluents can be used as wastewater reuse for irrigation of cooked food crops according to the recommendations of the World Health Organization. Keywords: wastewater, kinetic coefficients, dissolved Oxygen, hydraulic parameters, reuse.

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Determinación de coeficientes de degradación de materia orgánica en el rio Negro (municipio de Rionegro, Colombia)

Abstract: Determinación de coeficientes de degradación de materia orgánica en el rio Negro (municipio de Rionegro, Colombia). Determination of kinetics coefficients of organic matter degradation in Negro river (municipality of Rionegro, Colombia).

Cited by 4 publications

References 4 publications

Water pollution index of high Andean micro-basin of the Chumbao River, Andahuaylas, Peru

Water pollution index of high Andean micro-basin of the Chumbao River, Andahuaylas, Peru

Variación espacial y temporal de nutrientes y total de sólidos en suspensión en la cuenca de un río de alta montaña tropical

Evaluation of the operation of the stabilization pond for agricultural irrigation purposes

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