Catálogo de publicaciones - libros

Çan region is rich in clay mines and lignite deposits. Results of major anioncation and some trace elements in groundwater and surface water around the Çan Plain, showed that groundwater is very reach with calcium-magnesium-sulfate (Ca-Mg-SO). Its aluminum (Al) concentrations are more than the acceptable maximum standard value. The results show that mining activity has contaminated water sources. The heavily polluted water is currently under the international standard value around the plain. However, if precautions are not taken, these contaminants may spread in surface water and groundwater.

The Regional Water Databanks (WDB) project is a project implemented within the framework of the Middle East peace process and coordinated by Executive Action Team (EXACT) and recommended by Middle East Multilateral Working Group on Water Resources (WWG) with the aim to promote regional cooperation among Israel, Jordan and the Palestinian Authority. The main aim of the regional water data bank project is to improve the joint monitoring, data availability and information exchange among water managers of the three core parties in the Middle East. The EU is financing it since 1995. A decision support system (DSS) for wastewater reuse is presented.

This paper describes a new wastewater treatment concept which was assessed to be technically and economically feasible for suburban and rural areas in Mediterranean countries. The treatment consists of a two-step anaerobic high-rate reactor like upflow anaerobic sludge blanket (UASB) reactor followed by vertical flow constructed wetland (CW) and UV radiation. It fulfills the defined criteria, as meeting the standards for water reuse, costs especially for energy are low, sewage sludge production is limited, and operation and maintenance are simple.

The problem considered in this paper is to coordinate the costs and ecological risks of all stakeholders in the environmental water/wastewater supply chain. Using the concept of the environmental supply chain we construct a corresponding decision tree and a risk matrix, which quantitatively estimate the risk level. We propose an economic-mathematical model permitting to mitigate the integrated risk to population and society under economic, technological and social constraints.

The paper deals with a novel advanced solar-powered wastewater treatment technique based on direct osmosis process. The separation is driven by natural osmosis, which does not require external pumping energy as in the reverse osmosis process. Test results of the constructed pilot device having capacity of 1 m/h with various wastewater samples taken in villages of Aral Sea region have been discussed. The treated water might be reused as a substitute for potable quality water in many applications.

Israel, a water scarce country, had embarked on a national campaign to develop all its water resources and to integrate into water resources management strategy - recommends a comprehensive water conservation and efficient use of water by all users. This strategy stressed that treated wastewater is a valuable water resource and focused on the total wastewater treatment and reuse as a national objective, and the exchange of the treated effluent with the farmers' fresh water allocations. The Dan Region wastewater project is planned to help Israel face the water shortage issue.

Soil aquifer treatment (SAT) has been practiced in various dry land and semiarid areas as means to reduce environmental risk by improving wastewater quality at disposal sites and to replenish aquifers enabling the use of reclaimed water for nonrestrictive crop irrigation. SAT success is preconditioned by an appropriate site selection, a correct design, and a continuous maintenance. The location of the SAT basins is determined by a multitude of criteria often less than inituitive. This study aims to identify potential sites for SAT in Jerba Island integrating geographic information systems (GIS) tools and the analytical hierarchy process (AHP).

Being one of the most water scarce countries in the world and in a region where water shortage is a major concern; Jordan faces a great challenge to meet water demands and manage its limited hydrological resources. Wastewater reuse can be an option for alternative water resource especially for the agricultural sector. Moreover, wastewater recycling and reuse when properly implemented is consistent, cost effective as well as environmentally sound. Therefore, Jordan has come to recognize the future key role that treated wastewater can play in the development of the country.

Arizona's Groundwater Management Act limits the use of groundwater to meet growing demand for water by the municipal sector. The state's recharge and recovery program allows for water reuse through aquifer recharge and later recovery inside or out of the area of hydrologic impact. The paper discusses water reuse within the municipal sector in Arizona, with a special focus on the Tucson metropolitan area. Increased effluent utilization is playing a more prominent role in long-range planning efforts. The paper focuses on the role of reclaimed water in water management planning. It explains how the use of effluent is influenced by water quality considerations and institutional/legal arrangements.

Wastewater originated from dairy operations may harbor human pathogens including (). Excess nutrients present in dairy wastewater can also pollute surface and ground waters. Effective microbes (EM) and duckweed have shown a great promise in wastewater treatment. The duckweed growth and EM applications were tested. Combined application of EM and duckweed growth significantly reduced the ammonium nitrogen, total phosphorus, total suspended solids and biological oxygen demand after three months and is a very efficient way of dairy wastewater treatment.