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Energetic and biochemical valorization of cork boiling wastewater by anaerobic ...
Marques, Isabel Paula Ramos; Gil, Luís; La Cara, F.In addition to energy benefits, anaerobic digestion offers other interesting advantages. The cork industry is of great environmental, economic and social significance in the western Mediterranean region, with Portugal being the world-leading producer and exporter. Cork boiling wastewater (CBW) is a toxic and recalcitrant organic effluent produced by this sector, which constitutes a serious environmental hazard...
Cork wastes treatment and biogas production
Marques, Isabel Paula Ramos; Gil, LuísCork industry is an important economic and social sector in the western Mediterranean region. Portugal is the producer and processing leader of this sector. The cork processing industry gives rise to several effluents that must be treated and valorised. This work is a part of a study that aims to develop an integrated process in order to maximize the valorization of the different wastes/effluents of the cork pr...
Phenolic compouds with antiradical activity from the cork boiling wastewater an...
Marques, Isabel Paula Ramos; Gil, Luís; La Cara, F.This work aims to develop a procedure that explores the different types of valorization that can be obtained by integrating a biological process, such as the anaerobic digestion, to promote the bioconversion of the industrial cork effluents (cork boiling wastewater, CBW).
Cork wastes as energy sources
Gil, Luís; Marques, Isabel Paula RamosThis work shows the possibility of using cork wastes form cork processing for energy production. In cork processing operations an important waste is produced, cork powder, the main waste of the cork industry, which is estimated to reach over 30000 tons/year. There are various types of cork powders with higher calorific values ranging from 4,000-7,000 Kcal/kg. This powder is commonly burned to produce steam or h...
Cork boiling wastewater anaerobic digestion process leads to biogas and valuabl...
Marques, Isabel Paula Ramos; Gil, Luís; La Cara, F.Cork is the outer bark of the cork-tree (Quercus suber L.) and it is a very important industrial sector in western Mediterranean region, being Portugal the world-leading producer and exporter (1). The anaerobic digestion has never been applied to the treatment and valorization of the industrial cork effluents (cork boiling wastewater, CBW). The goal of the present work is evaluate the role of this biological p...
Olive mill wastewater conversion into a stream for agricultural application: an...
Sampaio, M. A.; La Cara, F.; Correia, J. P.; Marques, Isabel Paula RamosAnaerobic digestion and the electrochemical oxidation were used to valorise the effluent of the olive oil production (olive mill wastewater, OMW). Anaerobiosis was realized in an anerobic hybrid reactor, operating at a low hydraulic retention time of about 6 days and digesting the raw OMW, without any previous substrate altarations. Electrochemical process worked with a dimensionally stable anode (DSA), withou...
Cork boiling wastewater treatment and biogas production
Marques, Isabel Paula Ramos; Gil, LuísCork boiling wastewater (CBW) is a very important effluent of the cork processing industry which is produced in the western Mediterranean region and western north of Africa. CBW has no utility till now constituting an environmental hazard. It is a complex liquid stream which is produced during the boiling of the cork planks. This process step is one of the key operations in cork processing. CBW is known as havi...
Potencial energético dos efluentes da preparação da cortiça
Marques, Isabel Paula Ramos; Gil, LuísDada a elevada importância económica, social e ambiental da produção de cortiça em Portugal e tendo em conta a carga orgânica dos efluentes gerados por esta indústria, o presente trabalho apresenta um levantamento dos efluentes produzidos no sector da preparação da cozedura da cortiça e estima o potencial energético envolvido através da respectiva valorização energética por aplicação do processo de digestão ana...
Cork boiling wastewater management by anaerobic digestion
Gonçalves, M. R; Gil, Luís; Marques, Isabel Paula RamosCork boiling wastewater (CBW) is an aqueous and complex effluent of the cork industry which is produced during the boiling of the cork planks, one of the key operations in cork processing for cork stoppers production. CBW contains suspended and dissolved solids and organic materials such as phenolic compounds and is characterized by a low biodegradability and an acid pH. This boiling wastewater has no utility, ...
Mineralization of olive mill wastewater over DSA
Gonçalves, M. R.; Correia, J. P.; Marques, Isabel Paula RamosBioenergy recovery from olive mill wastewater (OMW) has been effectively accomplished by anaerobic digestion [1]. Nevertheless, a post treatment is required to attain the discharge limit values. After the anaerobic treatment of OMW, the main issues are related to the remaining organic matter (COD), recalcitrant phenolic compounds (40-50%) and effluent dark-brown colour. The electrochemical treatment is proposed...
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