The effect of wastewater management on the economic development of tourist coastal areas
© Aristotle University of Thessaloniki (6/2009)
The economic development of the coastal zones must keep up with the environmental requirements and the spatial planning and regional development must result in sustainable development. Environmental protection measures entail an additional cost for the production of products and the offered services.
© Aristotle University of Thessaloniki (6/2009)
The economic development of the coastal zones must keep up with the environmental requirements and the spatial planning and regional development must result in sustainable development. Environmental protection measures entail an additional cost for the production of products and the offered services.
The waste water treatment as a viable and dynamic system
© Aristotle University of Thessaloniki (6/2009)
Waste water treatment plants (WWTPs) are embedded into a specific technical, organizational and/or social context, which strongly influences their design characteristics, as well as their overall effectiveness.
© Aristotle University of Thessaloniki (6/2009)
Waste water treatment plants (WWTPs) are embedded into a specific technical, organizational and/or social context, which strongly influences their design characteristics, as well as their overall effectiveness.
A Fuzzy Multicriteria Mathematical Programming model for planning irrigated agricultural regions
© Aristotle University of Thessaloniki (6/2009)
Modern irrigated agriculture is characterized by a series of conflicting optimization criteria that hinder the decision making process in the planning of agricultural production. Such criteria usually are gross margin, the variance of gross margin that stands as a measurement of the total risk, labor, etc. At the same time, the decision making process in agricultural production planning is often conducted with data that result accidentally in nature or are fuzzy (not deterministic).
© Aristotle University of Thessaloniki (6/2009)
Modern irrigated agriculture is characterized by a series of conflicting optimization criteria that hinder the decision making process in the planning of agricultural production. Such criteria usually are gross margin, the variance of gross margin that stands as a measurement of the total risk, labor, etc. At the same time, the decision making process in agricultural production planning is often conducted with data that result accidentally in nature or are fuzzy (not deterministic).
Assessing the impacts of environmental policy instruments on sustainable irrigated agriculture
© Aristotle University of Thessaloniki (6/2009)
In the last years the use of groundwater resources in irrigated agriculture poses an increasing environmental threat in many rural regions of Greece. The associated problems are likely to become even more intense due to the emerging climate change, with direct impacts on the agricultural sector itself.
© Aristotle University of Thessaloniki (6/2009)
In the last years the use of groundwater resources in irrigated agriculture poses an increasing environmental threat in many rural regions of Greece. The associated problems are likely to become even more intense due to the emerging climate change, with direct impacts on the agricultural sector itself.
Optimisation of water resources management for insular and geographically isolated areas
© Aristotle University of Thessaloniki (6/2009)
Recently, more attention has been given to the utilization of alternative water sources, such as desalinated seawater and reclaimed water, particularly in insular areas lacking substantial freshwater resources. The use of mathematical modelling can assist in making the right decisions, with respect to water management, as the increased complexity, due to various potential solutions, is impending the derivation of the optimal solution.
© Aristotle University of Thessaloniki (6/2009)
Recently, more attention has been given to the utilization of alternative water sources, such as desalinated seawater and reclaimed water, particularly in insular areas lacking substantial freshwater resources. The use of mathematical modelling can assist in making the right decisions, with respect to water management, as the increased complexity, due to various potential solutions, is impending the derivation of the optimal solution.
Designing and evaluation automatic control system for operational water management of Dez Main Canal
© Aristotle University of Thessaloniki (6/2009)
As water is becoming more and more important, proper water management is required to improve the efficiency of water systems. Research on the irrigation systems automation is one of the new and efficient approaches for making a proper water management decision to solve the problems. In this study we designed and applied a robust control system of Centralized Distant Downstream Proportional Integral Feedback Control with Filters and Decouplers for west main canal of Dez irrigation network. The total length of the proposed canal is 93km, which the first 45km of the canal are considered.
© Aristotle University of Thessaloniki (6/2009)
As water is becoming more and more important, proper water management is required to improve the efficiency of water systems. Research on the irrigation systems automation is one of the new and efficient approaches for making a proper water management decision to solve the problems. In this study we designed and applied a robust control system of Centralized Distant Downstream Proportional Integral Feedback Control with Filters and Decouplers for west main canal of Dez irrigation network. The total length of the proposed canal is 93km, which the first 45km of the canal are considered.
Total water management approach in steel industry
© Aristotle University of Thessaloniki (6/2009)
A total water management for steelworks is presented here, taking into account primarily the local conditions, legal requirements and above all the availability of fresh water. Industries are recommended to adopt practices for saving water such as recycling of cooling water, reuse of water, and irrigation with treated wastewater.
© Aristotle University of Thessaloniki (6/2009)
A total water management for steelworks is presented here, taking into account primarily the local conditions, legal requirements and above all the availability of fresh water. Industries are recommended to adopt practices for saving water such as recycling of cooling water, reuse of water, and irrigation with treated wastewater.
Public vs. Private Water Utilities: PBSCs and PPPs used for financial sustainability
© Aristotle University of Thessaloniki (6/2009)
A public-private partnership (PPP) scheme is a “product providing tool” becoming more and more popular worldwide due to the inability of the public sector to finance a number of projects. In developing countries the implementation of PPPs is crucial especially in the water supply sector. The projects have to do with the reduction of NRW and the provision of better water supply services. Several problems concerning the implementation of PPP and PBSC projects are discussed. The present paper is a review paper discussing a number of key success factors identified for the Public Private Partnerships (PPP) and the Performance Based Service Contracts (PBSC) based in previous studies concerning their successful implementation.
© Aristotle University of Thessaloniki (6/2009)
A public-private partnership (PPP) scheme is a “product providing tool” becoming more and more popular worldwide due to the inability of the public sector to finance a number of projects. In developing countries the implementation of PPPs is crucial especially in the water supply sector. The projects have to do with the reduction of NRW and the provision of better water supply services. Several problems concerning the implementation of PPP and PBSC projects are discussed. The present paper is a review paper discussing a number of key success factors identified for the Public Private Partnerships (PPP) and the Performance Based Service Contracts (PBSC) based in previous studies concerning their successful implementation.
Quality of Mykonos water resources – a preliminary assessment
© Aristotle University of Thessaloniki (6/2009)
A preliminary assessment of water and sediment quality of Mykonos Island is presented. Samples have been collected from 16 sites and analyzed for physicochemical parameters, major ions and nutrients (water), heavy metals and organic micro-pollutants (sediments).
© Aristotle University of Thessaloniki (6/2009)
A preliminary assessment of water and sediment quality of Mykonos Island is presented. Samples have been collected from 16 sites and analyzed for physicochemical parameters, major ions and nutrients (water), heavy metals and organic micro-pollutants (sediments).
Environmental management of severe riverine floods: The case of Evros Prefecture in Greece
© Aristotle University of Thessaloniki (6/2009)
In the present paper the flooding problem of Evros River is presented in connection with the management actions taken in the homonymous Prefecture of North-Eastern Greece. The history of the Evros flooding is long (since 1897) with extended floodings in both 2006 and 2007. Various works for construction of dams, embankments, arrangements of the riverbed and others have been undertaken and are still in progress in our days, together with a system of control of the water level.
© Aristotle University of Thessaloniki (6/2009)
In the present paper the flooding problem of Evros River is presented in connection with the management actions taken in the homonymous Prefecture of North-Eastern Greece. The history of the Evros flooding is long (since 1897) with extended floodings in both 2006 and 2007. Various works for construction of dams, embankments, arrangements of the riverbed and others have been undertaken and are still in progress in our days, together with a system of control of the water level.
