Removal of nutrients and pathogens in wastewater effluents is very important for the sustainability of the aquatic ecosystem and environment. On-site sewage treatment and disposal systems commonly referred as septic systems are one of the major sources of nutrients and pathogens in groundwater systems. Drainfields in septic tank systems are normally located in permeable, unsaturated natural soi...

Water flow is an essential factor in the sealability of any underground cavern, including those for nuclear waste disposal, and significantly affected by permeability rock. The rocks various factors, stress temperature. rock changes excavating a temperature decay heat from waste, change induces thermal stress. Therefore, water around such caverns must be evaluated considering effects Numerical ...

Waste ecologic storage is the main domestic waste treatment channel in EU. The paper describes the impact of a non-ecological warehouse existing in the municipality of Târgu-Jiu, upon the soil and the need for controlled storage of domestic waste and industrial waste. The necessary field for waste storage has to be mutually agreed upon with the local, sanitary, and environmental protection auth...

The present paper focuses on IRSN structural studies aiming at assessing the existence of tectonic structures in the Callovo-Oxfordian clay formation and their potential role on radionuclide transport. IRSN has first determined the type of fracturing that could be present in the Callovo-Oxfordian, by carrying out surface fieldwork in Meuse/Haute-Marne and investigations in clay and limestone la...

Swelling clays play a major role in current concepts for the underground disposal of high-level nuclear waste in deep geological formations. In one of the multi-barrier concepts for preventing the escape of radioactive substances from a high-level nuclear waste repository, the barrier consists of a copper container, compacted bentonite as buffer and backfill (the engineered barrier), and the re...