Oscar Candia

Oscar Candia
Universidad Autónoma De Chile · Facultad de Ingeniería

Doctor in Science of Natural Resources

About

20
Publications
2,675
Reads
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86
Citations
Citations since 2017
8 Research Items
62 Citations
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201720182019202020212022202305101520
201720182019202020212022202305101520
Additional affiliations
March 2019 - present
Universidad Autónoma De Chile
Position
  • Professor (Assistant)
Description
  • My primary areas of research focus on waste valorization, and now working on anaerobic digestion coupled to microalgae production. Also I teach topics of statistics, projects, and some industrial process.
July 2013 - February 2019
Centro de estudios en alimentos procesados (CEAP), Chile
Position
  • Researcher
Description
  • Integrated management system of waste and agricultural by-products in the region of Maule. Project funded by “Fondo de Innovación para la Competitividad (FIC) del Gobierno Regional Del Maule”. Role: Project Manager.
August 2010 - July 2013
Universidad de Viña del Mar
Position
  • Professor (Associate)
Description
  • Environmental Engineering
Education
March 2006 - August 2012
Universidad de La Frontera
Field of study
  • Natural resources
March 2000 - June 2007
Universidad de La Frontera
Field of study
  • environment

Publications

Publications (20)
Article
We evaluated the use of hazelnut shell (HS) for pellet production. The investigation of chemical properties, such as the calorific value, low ash, nitrogen, sulfur and chlorine content as well as low heavy metal contents, reveals that the proposed biomass is suitable. However, fuel agglomeration is complicated possibly by some chemical (high conten...
Article
Full-text available
The main objective of this study was to recover hydroxytyrosol from olive mill waste (olive leaves and a semi-solid waste with a 65–75% of humidity called alperujo). The recovery process involved solid–liquid extractions using two hydrophilic deep eutectic solvents (DESs), CIS-DES (a 1:1 mixture of choline chloride and citric acid) and Etagline (a...
Article
Full-text available
Anaerobic digestion (AD) of food waste (FW) has become of great interest in recent years due to the high organic removal rates and positive net energy balance. However, two key issues should be highlighted. On the one hand, AD effluent still needs to be purified in order to meet ecologically acceptable requirements for direct disposal. On the other...
Article
A Biomass Quality Index (BQI) developed using a previously reported tool was shown to be a promising method to rank biomass suitable for solid biofuel production. The BQI was developed by selecting 12 chemical parameters to be analyzed among ten available biomasses produced in the north, central and south of Chile. Furthermore, a Parameter Quality...
Article
The main objective of this study was to recover hydroxytyrosol from olive mill waste (olive leaves and a semi-solid waste with a 65–75% of humidity called alperujo). The recovery process involved solid–liquid extractions using two hydrophilic deep eutectic solvents (DESs), CIS-DES (a 1:1 mixture of choline chloride and citric acid) and Etagline (a...
Article
Full-text available
The use of butanol synthesized from organic waste has been widely studied, but the lack of native strains of Clostridium and the use of a synthetic medium for its growth remain important barriers to extend its use. In this work, it was possible to isolate and characterize three strains of Clostridium sp. native using the Cherry Waste (ChW) as a cul...
Article
Full-text available
Food manufacturing wastes, such as olive mill solid waste, tomato pomace and grape pomace are three wastes produced by food industries in the Region of Maule. One of the simplest strategies for the proper disposal of these residues is to directly eliminate them by cultivation with degrading mesophilic microorganisms, which use these wastes as their...
Poster
Full-text available
Our recent work showed that a green microalgae, Scenedesmus sp. was cultivated in samples of liquid waste streams (LWS) from fruit and vegetables processing plants situated in Maule region of central Chile. These results suggest that LWS are useful to obtain microalgae based carbohydrates as feedstock for biofuel production, and further studies are...
Poster
Full-text available
In this study, samples of waste streams from fruit and corn processing plants were collected and analysed. Solid and liquid fractions were autoclaved and separated by pressing where solid fraction was used as substrate for protein enrichment while liquid fraction was used as medium for butanol production. Preliminary results, shows that protein enr...
Article
Full-text available
This work studied the sorption and mobility of dimethenamid (2-chloro-N-(2,4-dimethyl-3-thienyl)-N-(2-methoxy-1-methylethyl)-acetamide) in soil amended with liquid cow manure (LCM) at doses equivalent to 0, 100, 200 and 300 thousand L ha-1 (D0, D100, D200 and D300 respectively). For the batch sorption study the amended soils were previously incubat...
Article
Full-text available
The effect of liquid cow manure (LCM) on dimethenamid persistence was studied using amended soils with various stabilization times and LCM doses corresponding to specific field applications. Soils were amended with LCM doses equivalent to 100,000, 200,000, and 300,000 L ha-1. Dimethenamid (2-chloro-N-(2, 4-dimethyl-3-thienyl]-N-[2-methoxy-1-methyle...
Article
Full-text available
The raspberry weevil, Aegorhinus superciliosus (Guérin) (Coleoptera: Curculionidae), is the most important pest in blueberry and raspberry fields in the south of Chile. In this study, we investigated the electroantennographic and behavioral responses of A. superciliosus to semiochemicals released from conspecific individual adults, with particular...
Article
Full-text available
This work proposes a supervisory control system based on an optimization layer to calculate the optimum pH and dissolved oxygen (DO) set-points for the SISO controller, maintaining the process at stable partial nitrification. Takagi–Sugeno fuzzy multimodels were implemented to estimate ammonium degradation and nitrite accumulation from on-line DO a...
Article
The liquid cow manures (LCM) are used as amendments applied for soil, increasing organic matter, nutrient levels and also constitute a form disposal of animal wastes. This contributes to soil fertility, nutrient cycling and to prevent pollution of waters resources as rivers and streams near to the dairy farms. Incorporating LCM includes a high dens...

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