Understanding the structure and dynamics of microbial communities, especially those of economic concern, is of paramount importance to maintaining healthy and efficient microbial communities at agricultural sites and large industrial cultures, including bioprocessors. Wastewater treatment plants are large bioprocessors which receive water from multiple sources, becoming reservoirs for the colle...

While studies have documented the presence of pyrethroid insecticides at acutely toxic concentrations in sediments, little quantitative data on sources exist. Urban runoff, municipal wastewater treatment plants and agricultural drains in California’s Sacramento-San Joaquin River Delta were sampled to understand their importance as contributors of these pesticides to surface waters. Nearly all r...

Jamieson, T.S., Stratton, G.W., Gordon, R. and Madani, A. 2003. The use of aeration to enhance ammonia nitrogen removal in constructed wetlands. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada 45: 1.9-1.14. Nitrogen (N) resulting from manure run-off can impair receiving water bodies. Constructed wetlands are engineered systems built to utilize the treatment processes availabl...

This study explores antibiotic resistance genes (ARGs) as emerging environmental contaminants. The purpose of this study was to investigate the occurrence of ARGs in various environmental compartments in northern Colorado, including Cache La Poudre (Poudre) River sediments, irrigation ditches, dairy lagoons, and the effluents of wastewater recycling and drinking water treatment plants. Addition...

Heavy metals released into the surface and ground water has been a major preoccupation for many years because of their increased discharge, acute toxicity, non-biodegradable nature and tendency for bioaccumulation [1-3]. Iron a common contaminant enters the water bodies through effluents of industries such as electroplating, mining, steel processing etc. The presence of Fe (II) in water results...

Solubility and bioavailability of heavy metals are important with respect to theirtoxicity. The discharge of municipal wastewater in soil and surface waters can affectbioavailability and mobility of heavy metals in soils and sediments. The effect of dischargeof Arak municipal wastewater on the KNO3 and DTPA extractable heavy metals in a salinesoil sampled from Mighan playa (Iran) compared to a ...

Water supply is a critical issue in the Middle East, particularly in the West Bank and Gaza Strip (Palestine). Water resources are scarce due to the arid climate and the population growth while water resources management and development is complicated by the ongoing Israeli occupation. There is a critical lack of sanitation in the West Bank. Only 45% of the Palestinian population is connected t...

The water crisis in arid and semi-arid areas causes more integrated studies regarding the utilization of urban wastewater. In this research, the analytic hierarchy process was conducted in 2014 according to the relative weight of criteria resulted from a questionnaire and a primary normal matrix. The results showed that the criteria including the quality of wastewater and benefit per co...

The Mighan playa/lake is characterized as a closed catchment. In the recent years, the rapid industrialization and urbanization has resulted in a pollution area in the city of Arak. In this work, we focus on six regions around the playa/lake to study the distribution of heavy metals in the waters and their contamination risk. A total of 32 water samples are analyzed to determine the conta...

oncerns over the long-term reliability of land application of Class B biosolids are causing many utilities to examine alternatives for effectively disposing of biosolids. Most wastewater treatment plants in Florida rely upon private contractors to dispose of residual biosolids in either a liquid or cake form. Currently, the predominant disposal method is application of digested biosolids on agr...