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Wastewater Treatment and Reuse in Arid Areas

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Improving the access of 20 vulnerable Bedouins households to a non conventional water resource through construction of 20 household GWWTs to collect and treat gray wastewater with a treatment capacity of 0.5 m3 in average for each unit to be used in irrigating of 500 m2 home gardens which were establishes, planted and irrigated through utilizing this permanent source of unconventional water for supplementary irrigation.

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The Joint Water Framework Directive / EU Water Initiative process (“Mediterranean Joint Process”/ JP): developing synergies between the two mechanisms to facilitate the implementation of sound water policies.

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It is a technical platform for collaboration between the various countries bordering the Mediterranean, allowing evaluations and discussions in connection with the Mediterranean characteristics through the use of the Water Framework Directive (WFD) of the EU as a discussion basis. Moreover, this Joint Process (JP) is developing its activities in phase with the European Neighbourhood Policy (ENP) principles (cooperation, regional stability, Exchange of information etc.)

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Wastewater Reuse – Case Studies

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The demand for fresh water in Virginia is growing as the state’s population increases. This demand can potentially exceed supply during times of even moderate drought. In recent years, the normal seasonal droughts that have occurred in Virginia have caused local and state government to enact water conservation ordinances. These ordinances limit the use of potable water (water suitable for human consumption) for such things as car washing and landscape irrigation. The potential for developing new sources of potable water is limited. Conservation measures, such as irrigating with reclaimed water, are one way to help ensure existing water supplies are utilized as efficiently as possible

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Degrés Bleus ®: reuse the heat from wastewater for an ecological and economical heating system

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Degrés Bleus is a solution allowing to re-use heat from waste water for an ecological and economical heating system.

This valorization of a renewable energy source enables to significantly substitute fossil fuels, reduce greenhouse gas emissions and reduce the electrical bill related with a one’s heating.

Much of the wastewater comes from bathrooms and household appliances. It naturally has a temperature between 11 and 17 ° depending on the seasons and places. Three quarters of the heat of the warm waters are discharged to the sewer and this heat is lost. Lyonnaise des Eaux offers municipalities a simple way to recover this energy to heat homes and offices. This solution is called DEGRES BLEUS.

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