Constructed wetlands (CWs) are engineered water treatment systems designed to remove various types of contaminants. A large number of processes simultaneously contribute to water quality improvement in CWs. During the last decade, there has been a wide interest in the understanding of complex “constructed wetland” systems, including the development of numerical process-based models describing t...

Orchards with tree crops are of critical importance to the global economy and environment due their ability be productive for many years without need replanting. They also better adapted extreme climatic conditions compared other crops. However, new challenges emerging as climate change threatens both production water supply. Drip irrigation (surface subsurface) is an method that has potential ...

Abstract A subsurface porous pipe irrigation system has been widely used, water seeps from the into soil. Such systems can carry out both conveyance and seepage in same time. Hence by this research, it is investigated effect of saturated hydraulic conductivity on movement soil moisture contents using five values 0.05, 0.075, 0.1, 0.125, 0.15 cm/hr for pipe. The installed at a depth 15 cm with 6...

Most of the non-point source nitrogen (N) load in rural areas is attributed to onsite wastewater treatment systems (OWTS). Nitrogen compounds cause eutrophication, depleting the oxygen in marine ecosystems. OWTS rely on physical, chemical and biological soil processes to treat wastewater and these processes may be affected by climate change. We simulated the fate and transport of N in different...

Bacteriophage removal by soil passage in two field studies was re-analyzed with the goal to investigate differences between one- and two-dimensional modeling approaches, differences between one- and two-site kinetic sorption models, and the role of heterogeneities in the soil properties. The first study involved removal of bacteriophages MS2 and PRDI by dune recharge, while the second study rep...