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In the North-West of Spain, the annual production of mussel is 2 × 10 6 t (35% of the world). The industrial thermal treatment of mussels generates between 300 and 400 L/t wastewaters that are continuously disposed into the sea without previous treatment and or further reuse. These effluents, relatively rich in organic matter (7 g glycogen/L and 25 g COD/L), contribute to the progressive deterioration of the marine ecosystem. We wish to suggest a biotechnological process, based on a laboratory optimization and industrial pre-scale trials, to transform these industrial effluents into a growth culture medium to produce microbial biomass. Furthermore, this biomass is isolated and treated by different optimized separation and purification processes to produce several bioproducts: 1) single cell protein; 2) cell wall material with a high content in glucans and glycoproteins 3) fractions of 1,3-β-glucans and mannoproteins from yeast cell walls hydrolysis; and 4) a potential antioxidant extract. Finally, the authors propose a scaled process for its industrial application. In consequence, we believe that this work provides an environmentally friendly, eco-designed and profitable solution that allows integrating the mussel industry into the ecosystem in a sustainable way. [ABSTRACT FROM AUTHOR]

For more than 40 years, the industrial complex which developed near Huelva (in SW Spain) produced a huge amount of phosphogypsum as a waste product of manufacturing fertilizers. This waste was stockpiled in a stack 25 m high, covering 1200 ha of what was once a salt marsh. The weight of that enormous amount of waste produced active subsidence in the underlying sediment. Part of the sediment was injected into the marginal areas, where the load pressure is minor, causing significant vertical movement in the floor of the estuarine channel. This manuscript describes several surficial features using multibeam echosound. A crest formed by cones and a bulge area could be interpreted as injection structures. The evolution of the topographic position of the floor was also analyzed by comparing different records of the estuarine bed in the margins of the stockpile. The data in this work document the changes in the dynamics of the estuary in relation to these vertical movements. These changes in dynamicsled to erosion and deposition in various areas of the bed. [ABSTRACT FROM AUTHOR]

Abstract: Industrial waste containing radioactive isotopes (from U-decay series) was released into Ebro river basin due to the activity of a dicalcium phosphate (DCP) plant for a period of more than two decades. Gross alpha, gross beta, 40K, 226Ra and 210Pb activities were determined in several sludge samples taken at different depths from different points in the area of influence of the DCP plant located in Flix. Samples were collected from two different zones: one in front of the DCP plant and the second in front of a wastewater treatment plant installed several years after the DCP plant. The data obtained verify the influence of industrial DCP production on radioactivity levels present in the area. [Copyright &y& Elsevier]

Abstract: Industrial parks play a significant role in the production and use of goods and services. However, this also means that the environmental problems of each company are concentrated in a relatively small area. One of these problems is solid waste disposal, which has become a critical issue because of its negative impacts as well as the resources consumed. Integrated solid waste management integrates cleaner and more sustainable production strategies by reducing resource consumption and applying mechanisms found in natural ecosystems to industrial systems. Nevertheless, one of the necessary conditions for the design of such a system is a preliminary study of waste generation management in the area. The study presented in this paper characterizes industrial waste production and management in the metropolitan area of Granada (Spain), and analyzes its strengths, weaknesses, opportunities and threats. A similar typology of industrial activities, mainly in the distribution and transportation sector, as well as the proximity of various industrial parks could facilitate their partnership in environmental management. The results obtained in our study point to significant weaknesses in the system, such as the lack of effective waste management tools and training for waste management personnel. Other weaknesses were, the low percentage of selective waste collection and the existence of unauthorized collectors. The paper concludes with specific proposals for waste collection. These recommendations include the creation of the following: (i) a community responsible for waste management; (ii) recycling points in industrial parks; (iii) energy recovery from the waste; (iv) a market to sell, buy, and/or exchange waste; (v) one authorized set of waste management agents that would provide the advantages of an economy of scale. [Copyright &y& Elsevier]

This paper reveals that the design of the green taxes levied on the production of industrial waste by certain regional governments in Spain does not appear to reduce environmental damage. This may be because these taxes try to mitigate financial shortfalls, tax rates are too low and are fixed arbitrarily, and agents react to tax differentials across regions by disposing of their waste in regions with lower or null tax rates or illegally dumping it. This suggests that the environmental issues related to the disposal of industrial waste should be supervised by the national government or somehow coordinated across regions. [ABSTRACT FROM AUTHOR]