Le propos traite de l’aquosité urbaine à Alger. Les recherches dans ce champ sont faibles. On a particulièrement travaillé les archives coloniales, les archives nationales algériennes, les archives du cadastre algérien ; on a effectué une reconnaissance quasi-militaire du terrain pour retrouver les témoins des aqueducs construits (1516-1620) et des puits forés à l’époque ottomane, contemporains des équipements hydrauliques en France, selon Bernard Palissy (Traité des Fontaines, 1580). Des aqueducs à souterazi acheminent l’eau en ville pour près de cent cinquante fontaines publiques, palais et mosquées. Ils pourvoient également en eau les tanneurs, les teinturiers et avitaillent les navires. Par la suite, lorsque la France occupe l’Algérie, la question de l’eau devient prioritaire parmi les militaires, pour la santé et l’hygiène. Ces officiers du Génie et médecins recueillent nombre de données, de relevés et de dessins. Ils recherchent de nouvelles eaux. Ceci est d’ailleurs comparable à ce qui se passe en France et dans toutes les villes, où le souci d’assurer l’alimentation en eau et la salubrité des agglomérations devient une priorité. / The subject deals with urban aqueous in Algiers. Scientific investigations in this field of studies are not very important. We have particularly studied colonial archives, national algerian archives and the algerian archives of the cadastre. Besides this, we have made recognition quasi - military of the field of study in order to discover the witnesses of the aqueducts built between (1516-1620) an the sinking of wells bored during the ottoman period, which are contemporaneous to the equipments hydraulic in France according to Bernard Palissy (Treatise of fountains, 1580)The aqueducts with souterazi bring water to the city by almost a hundred and fifty fountains to the palaces and the mosques. They also provide water to the tanners and dyers and furnish the ships.During the colonial period when France occupied Algeria, the issue of the water becomes a priority for the military man, for the health and the hygiene of the city. The officers of the engineering, the doctors, collected some data topographical statement, draws. They were looking for new sources of water.These studies are the same with what is going on in France and all the cities all over the world, where the problem of the security of alimentation of water and the healthiness of the agglomeration becomes a priority.

This diploma thesis is devoted to a rainwater management in commercial and administrative buildings. The goal of this work is to describe rainwater management system with a focus on its later usage. The work is divided into theoretical and practical parts. The first part examines the binding conditions, as well as the individual technologies and devices that must be included in the implementation of a rainwater management system. The practical part of the work is an analysis of the possibility of using rainwater for the needs of the fire brigade in Havlíčkův Brod. The result of this work is a calculation of the approximate payback period of the proposed system.

Fältstudien gjordes för att utreda om det var möjligt att använda renat, filtrerat avloppsvatten för polymerberedning och i längden även som övrigt processvatten på Ellinge reningsverk. Testerna utfördes i fullskala med både vatten från mellansedimenteringen och slutsedimenteringen. Genom omfattande provtagningar och analysering av resultaten visade det sig vara en fungerande metod utan negativ påverkan på polymerlösningen och slamavvattningen. Det krävs dock mer arbete och ytterligare reningssteg såsom desinficering för att implementera det renade avloppsvattnet på hela vattensystemet. / The field study was done to investigate whether it was possible to use purified, filtered wastewater for polymer preparation and in the long run also as other process water at Ellinge treatment plant. The tests was performed in full scale with both water from the intermediate sedimentation and the final sedimentation. Through extensive sampling and analysis of results, it proved to be a working method without a negative impact on the polymer solution and sludge dewatering. However, more work and addiotional purification steps such as disinfection are required to implement the treated wastewater on the entire water system