Estimating scales of gold ore production and processing in Zaruma and La Merced de Buenos Aires, Ecuador: Electrical power consumption as an indirect metric

Gaudry, Karl-Heinz; Charro, Daniel Marcelo; Villacreses, Geovanna; Castillo, Washington; Shaban, Abdul

doi:10.1016/j.exis.2020.06.011

Cited by 4 publications

(6 citation statements)

References 7 publications

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“…By 2012, their mines had reached a production of approximately 1.15 tons of gold per year (ARCOM, 2016; Zúñiga et al, 2014). Mining activities have expanded to such an extent that by 2016 structural damage was being reported in geological structures beneath the city (Gaudry et al, 2020). By 2019, the citizen oversight organization A Zaruma for All ( Un Zaruma Para Todos ) estimated the value of losses caused by subsidence at up to 15.2 million USD, impacting at least 253 properties (13 public and 240 private) (Ochoa, 2019).…”

Section: Results and Main Findingsmentioning

confidence: 99%

“…With an affected population of 8,372 people (85.1% of the urban population), 1,814 buildings are considered to be in the risk zone, of which 1,542 are residential (SGR, 2017). Multiple laws and presidential decrees, along with reinforced control actions, have been issued to prevent the damage caused by illegal ‘artisanal mining’ (Gaudry et al, 2020).…”

Section: Results and Main Findingsmentioning

confidence: 99%

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Interdependencies between spatial planning and the mining laissez‐passer in cities: Policy analysis of the case of Ecuador

Gaudry

Ibarra

Carabajo

et al. 2022

Regional Science Policy & Practice

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Urban planning as a shared resource is tied with the 'tragedy of the commons'. Since UN-Habitat III, Ecuador has embraced the opportunity for urban sustainability. However, while the right to the city is constitutionally anchored since 2008, the integration of strategic sectoral plans and their spatial link remains unclear. Aiming at a better understanding on how sectoral plans, particularly mining, are articulated to planning instruments, we reviewed the existing instruments as well as those from the mining sector. Rooted in qualitative methods, interviews were conducted with respondents involved in the development of underground and land use planning in Ecuador. Primary data were collected during fieldtrips, and policy analysis was carried out descriptively. Findings were differentiated by spatial planning instruments, underground mining concessions and their implications for the empirical case study of Zaruma. Results showed that mining companies capture their risks and externalities into the local development agenda, and that municipalities remain limited to corrective or reactive measures. While mining sectoral plans consider the relevance of local development plans (PDOT), we identify an instrumental vacuum across the whole 'National Decentralized particularly

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Section: Results and Main Findingsmentioning

confidence: 99%

Section: Results and Main Findingsmentioning

confidence: 99%

Interdependencies between spatial planning and the mining laissez‐passer in cities: Policy analysis of the case of Ecuador

Gaudry

Ibarra

Carabajo

et al. 2022

Regional Science Policy & Practice

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show abstract

“…Ecuador has been promoting its modernization to increase tax collection and to reduce the associated environmental impact [4]. Even though there are some unresolved issues, this sector has exposed benefits for rural citizens and the government along with activating local networks and economic activities [5]. Therefore, the development of technically oriented frameworks for decision-making in small-scale gold mining operations has relevant importance.…”

Section: Introductionmentioning

confidence: 99%

Simulation-Based Analysis of Hydrometallurgical Processes. Case Study: Small-Scale Gold Mining in Ecuador

et al. 2021

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In this work, two hydrometallurgical processes for gold recovery are explored for a small-scale gold mining case study located at Ponce Enriquez, Azuay, Ecuador. The hydrometallurgical systems consider the use of sodium cyanide and sodium thiosulfate as leaching agents, with and without the incorporation of a subsystem for residual mercury removal. The proposed processes are modelled using the commercial simulator PRO/II interconnected with a Python scientific computing environment for performing stochastic simulations. Monte Carlo simulations, in which the conversion of the main units and the prices of gold vary following a random uniform distribution, permit observing the effects of these uncertainties on key recovery and economic indicators. The results facilitate the correlation between the inputs and outputs of interest as well as the visualization of the outputs variability for an adequate assessment of the systems under study by following a technical and social responsibility approach.

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“…[1] , Comisión Chilena del Cobre (2014), and Gonçalves [4] (See: Energy consumption in comminution (kWh)) Data source location Empresa Eléctrica Pública Estratégica Corporación Nacional de Electricidad (CNEL-EP), https://geoportal.cnelep.gob.ec/cnel/ Agencia de Regulación y Control de Electricidad (ARCONEL), Avenida Naciones Unidas 7–71, Quito 170,506, Ecuador Data accessibility Energy meters and their coordinates are hosted under the public enterprise CNEL-EP geoportal: https://geoportal.cnelep.gob.ec/cnel/, specifically under the layer and attributes table. Further, data is hosted within the article [3] or upon request at ARCONEL. Instructions for accessing these data: Access CNEL-EP geoportal, identify energy meters, acquire energy meter code, request ARCOM energy consumption by energy meter code.…”

mentioning

confidence: 99%

“… Instructions for accessing these data: Access CNEL-EP geoportal, identify energy meters, acquire energy meter code, request ARCOM energy consumption by energy meter code. Related research article Co-submission: Gaudry K.H., Charro D.M., Villacreses G., W. Castillo, A. Shaban [3] . Estimating Scales of Gold Ore Production and Processing in Zaruma and La Merced de Buenos Aires, Ecuador: electrical power consumption as an indirect metric.…”

mentioning

confidence: 99%

Dataset on energy consumption in ore-processing plants in Zaruma-Portovelo, Ecuador

Gaudry¹,

Charro²,

Shaban

2020

Data in Brief

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Based on 74 ore-processing plants and their energy meter's coordinates in Zaruma-Portovelo, we determined the energy consumption profiles for each ore-processing plant following the methodologies of Gonçalves (2016) and Cabezas (2016). In doing so, the total energy consumption in comminution processes was calculated. Data show a rising trend in energy consumption in ore processing in Zaruma-Portovelo. The data can be of immense use in designing sectoral reforms for transparency in the mining sector and developing cross-sectoral coordination between ARCOM and ARCONEL. The data can also help the state agencies in assessing the quantity of ore processed and preventing the leakage of revenue from the extractive sectors (Gaudry et al., 2020). Finally, the scientific community may benefit from this data, particularly those working on energy consumption, efficiency, and its forecasts in extractive sectors (Gaudry et al., 2020).

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Estimating scales of gold ore production and processing in Zaruma and La Merced de Buenos Aires, Ecuador: Electrical power consumption as an indirect metric

Cited by 4 publications

References 7 publications

Interdependencies between spatial planning and the mining laissez‐passer in cities: Policy analysis of the case of Ecuador

Interdependencies between spatial planning and the mining laissez‐passer in cities: Policy analysis of the case of Ecuador

Simulation-Based Analysis of Hydrometallurgical Processes. Case Study: Small-Scale Gold Mining in Ecuador

Dataset on energy consumption in ore-processing plants in Zaruma-Portovelo, Ecuador

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