Avances en El Saneamiento Y La Gestión De Biosólidos en Colombia

González, Mayra Alejandra Rodríguez; Guzmán, Juan Manuel González; Mayorga, David Andrés Camargo

doi:10.47847/faccea.v9n2a4

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…However, these installations are generally found in urban areas or cities, and they are not distributed in agricultural areas. Only 20% of WW treatment is conducted in these plants, mainly domestic WW [7]. Considering that nearly 95% of the harvest and post-harvest of coffee takes place in the artisanal facilities of small farmers, there is no effective treatment and control of AWW discharges [3,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Considering that nearly 95% of the harvest and post-harvest of coffee takes place in the artisanal facilities of small farmers, there is no effective treatment and control of AWW discharges [3,[8][9][10]. The difficulties of accessibility and the limitation in the collection of liquid waste from rural areas generate environmental and public health problems due to the dumping of AWW into surface water sources [7].…”

Section: Introductionmentioning

confidence: 99%

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Determination of Electrogenic Potential and Removal of Organic Matter from Industrial Coffee Wastewater Using a Native Community in a Non-Conventional Microbial Fuel Cell

Erazo

Agudelo-Escobar

2023

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Microbial fuel cells (MFCs) are an alternative to conventional wastewater treatments that allow for the removal of organic matter and cogeneration of electrical energy, taking advantage of the oxidation–reduction metabolism of organic compounds conducted by microorganisms. In this study, the electrogenic potential and the capacity for the reduction of the organic matter of native microbial communities in wastewater from the wet processing of coffee were evaluated using open-cathode MFCs. To determine the electrogenic potential, a factorial experimental design was proposed in which the origin of the residual water and the source of the inoculum were evaluated as factors. The MFCs operated for 21 days in both open-circuit and closed-circuit operation modes. Voltage records, current determinations, and chemical oxygen demand (COD) analyses were used to establish the power reached in the electrochemical system and the degree of the decontamination of the wastewater. During the MFC operation, voltages from 200–400 mV and power and current densities from 300–900 mW·m−2 and 10–22 mA·m−2, respectively, were reached. The inoculum used, with a statistical significance of α < 0.05, influenced the electrogenic performance of the microbial fuel cell. The previous process of adaptation to the operational conditions of the MFCs of the native microbial community positively influenced the current generation in the system. The degradation rates reached 500–600 mg·L−1·day−1, indicating the metabolic capacity of the microbial community in the MFCs to achieve the decontamination of wastewater from the coffee agroindustry. It was shown the implementation of bioelectrochemical systems constituted a viable option for the treatment of agricultural waste in Colombia. In addition, it was observed the capacity to cogenerate electrical energy from the biotransformation of the polluting organic matter in the effluents of the coffee industry.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of Electrogenic Potential and Removal of Organic Matter from Industrial Coffee Wastewater Using a Native Community in a Non-Conventional Microbial Fuel Cell

Erazo

Agudelo-Escobar

2023

Processes

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“…However, since 2002 research has been carried out in which this type of use has been evaluated [23]. The main activities of reuse currently carried out by the main WWTPs in Colombia are concentrated on restoring the soil in quarries, improving degraded soils, and preparing land for the entry of livestock, stabilizing slopes, seeding plants and shrubs [24][25][26][27]. Unfortunately, in the case of WWTPs in municipalities or other cities that have technical, operational, economic, and infrastructure limitations, it is difficult for them to obtain a Class B biosolid [21], which prevents its use.…”

Section: Introductionmentioning

confidence: 99%

Identification and Evaluation of Determining Factors and Actors in the Management and Use of Biosolids through Prospective Analysis (MicMac and Mactor) and Social Networks

et al. 2022

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The reuse of biosolids in agriculture and its inclusion within the circular economy model requires evaluating and analyzing factors that intervene in its management. The objective of the study was to analyze those factors that influence the management and use of biosolids. Fifty-three actors were questioned, and their answers were analyzed using two prospective methods and Social Network Analysis (SNA) identifying between 14 and 19 variables. Six should be prioritized due to their criticality and potential in management and reuse scenarios. It was observed that the formulation of objectives, such as the improvement of infrastructure, creation of an institutional policy, and the establishment of definitions for the kinds of biosolids, are opposed by internal agents. Seven key actors and four to six determining agents were identified in the scenarios. The network of management and use of biosolids in agriculture presented low density (0.28) and the exclusive action of three key actors. Consequently, the participation of a greater number of better-connected actors is required to project networks with a higher density (between 0.49 and 0.57), facilitating the diffusion of information and the inclusion of new actors not previously contemplated. The application of prospective and SNA methodologies focused on biosolids allows the prioritization of determinants, the evaluation of the level of involvement and communication between actors, and other aspects that have not been considered previously in the management of WWTPs in Colombia.

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Avances en El Saneamiento Y La Gestión De Biosólidos en Colombia

Cited by 2 publications

References 5 publications

Determination of Electrogenic Potential and Removal of Organic Matter from Industrial Coffee Wastewater Using a Native Community in a Non-Conventional Microbial Fuel Cell

Determination of Electrogenic Potential and Removal of Organic Matter from Industrial Coffee Wastewater Using a Native Community in a Non-Conventional Microbial Fuel Cell

Identification and Evaluation of Determining Factors and Actors in the Management and Use of Biosolids through Prospective Analysis (MicMac and Mactor) and Social Networks

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