Jornal de Biorremediação e Biodegradação

Abstrato

In situ Groundwater and Sediment Bioremediation Challenges and Opportunities at Polluted Sites in Europe

Mari Clera Coste

This paper carries an imperative examination of the present day software of environmental biotechnologies in the subject of bioremediation of contaminated groundwater and sediments. Based on evaluation of traditional applied sciences utilized in various European Countries and in the US, scientific, technical and administrative boundaries and constraints which nevertheless want to be overcome for an elevated exploitation of bioremediation are discussed. From this universal survey, it is evident that in situ bioremediation is a quite promising and affordable technological know-how for remediation of contaminated soil, groundwater and sediments.

The extensive metabolic variety of microorganisms makes it relevant to an ever-increasing wide variety of contaminants and illness scenarios. On the different hand, in situ bioremediation is quite knowledge-intensive and its utility requires a thorough perception of the geochemistry, hydrogeology, microbiology and ecology of contaminated soils, groundwater and sediments, beneath each herbal and engineered conditions. Hence, it’s possible nonetheless stays in part unexploited, generally due to the fact of a lack of regular consensus and public issues related to the lack of effectiveness and control, bad reliability, and viable prevalence of facet effects, for instance accumulation of poisonous metabolites and pathogens. Basic, utilized and pre-normative lookup are all wanted to overcome these obstacles and make in situ bioremediation extra reliable, strong and suitable to the public, as properly as economically extra competitive. Research efforts ought to no longer be restrained to a deeper grasp of applicable microbial reactions, however additionally encompass their interactions with the massive array of different applicable phenomena, as a characteristic of the without a doubt variable site-specific conditions. There is a want for a similarly improvement and utility of superior bimolecular equipment for web site investigation, as nicely as of superior metabolic and kinetic modelling tools. These would permit a faster assessment of the bioremediation practicable of a site, and in flip a preliminary evaluation of the technical feasibility of the chosen bioprocess which should exchange or at least limit the want for time-consuming and costly discipline tests. At the identical time, discipline assessments will in all likelihood continue to be unavoidable for an exact sketch of full scale remedial movements and the above stated equipment will in any match be beneficial for a higher layout and a greater dependable operation.