Rainwater streaking down a vertical wall exhibited the characteristics of “fingered flow.” The wall serves as an analogy to film flow in a relatively smooth and wide aperture fracture. A digital photograph of the wall suggests that the vertical distribution of water is heavy-tailed. A fractional-order advection-dispersion equation is used as a model.

We have observed fallout from the recent Fukushima Dai-ichi reactor accident in samples of rainwater collected in the San Francisco Bay area. Gamma ray spectra measured from these samples show clear evidence of fission products--(131,132)I, (132)Te, and (134,137)Cs. The activity levels we have measured for these isotopes are very low and pose no health risk to the public.

Rainwater, borewater and catchment water are used for domestic water supply purposes with or without treatment in remote areas around the world. These places seldom have any facilities for routine testing of their drinking water. A simple on-site testing method is highly required in such areas. The H2S method has been tested for treated drinking water and was found to have a good correlation wi...

This research focuses on the Expressway Project of Qiandao Lake District, investigates meteorological conditions, traffic volume, as well relationship between quality runoff at drainage facilities and asphalt concrete pavement sewage discharge rules through artificial rainwater natural rainwater, studies determines time scale initial flow expressway spatial that needs to be collected processed.

Roof runoff is collected rainwater from a roof using harvesting system (RWHS). The construction of an efficient RWHS requires thorough analysis the quality and appropriate treatment process for its intended use. In line with this, bibliometric comprehensive review studies related to was conducted. A corpus 1123 articles downloaded Scopus database parsed through CorText Manager determine relatio...

In order to explore bacteria resources that are applicable for purification of viaduct rainwater, a carbon-fixing strain numbered 1C-1 was isolated from the sediment rainwater tank. The identified through morphological characteristics and 16S rDNA sequences. effects three main factors (the simulated concentration, carbon source dosage, inoculation amount) on nitrogen phosphorus removal rate wer...