Renewable energy engineering projects

Remediation of damages caused by a spill of diesel and gasoline

Accidental spillage of 22,600 l of diesel and gasoline in 2007. Quantitative Risk Assessment (QRA), Light Non-Aqueous Phase Liquid (LNAPL) extraction, groundwater (pump and treat) and interstitial gases; purification with biological filter; microbiological treatment of soil and aquifer; study of microbiological degradation of benzene, MTBE and ETBE through isotopic analysis and the elaboration of microcosms (BACTRAP®s).

See “Evaluation of ethyl tert-butyl ether biodegradation in a contaminated aquifer by compound-specific isotope analysis and in situ microcosm” in “Journal of Hazardous Materials”.

Microbiological remediation of soil contaminated with thermal oil (HTF) in dynamic biopiles.

Accidental spillage of thermal oil (product formed by the compounds Biphenyl and Biphenyl Oxide) in 2017. Quantitative Risk Assessment; realization of microcosms in the laboratory; microbiological treatment in dynamic biopiles. In 2 months of treatment the average concentration of 4,630 mg / HTF / kg was lowerd to 0.17 mg HTF / kg soil. Final certification by an Accredited Control Body.

Microbiological remediation of soil contaminated with thermal oil (HTF) by dynamic biopiles.

Accidental spillage of thermal oil (product formed by the compounds Biphenyl and Biphenyl Oxide) in 2013/2014. Excavation and ex situ treatment in dynamic biopiles by the addition of specific heterotrophic bacteria grown in the company’s microbiological laboratory.

See “Remediated Sites and Brownfields. Success Stories in Europe” “in” “The European Information and Observation Network´s National Reference Centres for Soil” (Eionet NRC Soil).

Decontamination of a site contaminated with xylene

Accidental spillage of about 3,000 kg m, o, p-xylene and ethylbenzene in 2006 with damage to the aquifer. Investigation and preparation of the risk study, excavation, extraction of interstitial gases and their purification through a catalyst, extraction and purification of groundwater by means of a purifier and biological filter (pump and treat); application of a microbiological treatment with microorganisms specially adapted to the contaminant; establishment and control of the Natural Attenuation program. Without detectable remnant concentration.

Development and integrated implementation of photobioreactors for the reduction of greenhouse gases in agroindustry.

In collaboration with the University of Burgos, University of Valladolid andThe Technological of Extremadura (2014-2016). Anaerobic digestion of organic waste from the wine and dairy sector. Production of biogas and a digestate with a high percentage of nutrients through a DA process in two stages: a previous hydrolysis that allows to improve the transformation of organic compounds and the biomethanization process itself. The liquid fraction of the digestate is inoculated in the photobioreactor as a source of nutrients for the cultivation of microalgae that brings forth a bio-improver of soils.

Design and construction management of a mini-hydroelectric power plant of 400 kW.

Elaboration of the construction project, license and permit management and construction management of a mini-hydroelectric power plant with Kaplan turbine, with a flow of 20,000 l / s, a useful jump of 2.6 m, of 400 kW of power – Palencia 2011.

Design of a biogas plant in Knottingley, West Yorkshire – United Kingdom.

Sizing and elaboration of detailed plans for an anaerobic digestion plant using maiz, chicken litter, manure, beet and other vegetable remains as substrate. – 2013.

Biogas Potential Analysis of rose stems for an anaerobic digestion plant with separate hydrolysis (2 stages).

Compared to direct feed with fresh matter from an anaerobic digester, an optimized hydrolysis process increases the biogas production of certain substrates. For this reason the company has carried out a previous hydrolysis with rose stems of a plantation in Kenya to know the increase in biogas potential as well as the possible improvement in the composition of the digestion before undertaking the investment in the construction of the biogas plant. – Burgos / Kenya 2012.