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Abstract:The emphasis on learning and adaptation among different actors at various political administrative levels and on various geographic scales has become a precondition for the emergence of sustainable development. It is possible to find the essential form of collaborative management by using a Strategic Plan, designed to determine a local model of sustainable competitiveness in economic, social and environmental terms. The adoption of a Strategic Plan stimulates a process of shared knowledge, through which it is possible to generate a new environmental governance (EG) that is truly representative of a local system. This paper presents, as a case study representative of the Italian context, the Strategic Plan of the Nebrodi area (SP), and assesses the structure of a new form of public and private environmental governance focused on sustainable concern. Finally, the SP could be considered a guideline for managing the local territorial and environmental system from a long-term perspective.

Abstract:The lack of access to clean water remains a severe issue all over the world. Coupling photocatalysis with the membrane separation process, which is known as a photocatalytic membrane reactor (PMR), is promising for water treatment. PMR has developed rapidly during the last few years, and this paper presents an overview of the progress in the configuration and operational parameters of PMRs. Two main configurations of PMRs (PMRs with immobilized photocatalyst; PMRs with suspended photocatalyst) are comprehensively described and characterized. Various influencing factors on the performance of PMRs, including photocatalyst, light source, water quality, aeration and membrane, are detailed. Moreover, a discussion on the current problems and development prospects of PMRs for practical application are presented.

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