BACKGROUND Phage therapy or use of lytic bacteriophages for eliminating bacterial populations has been developed for several aspects of human affairs such as medicine, agriculture and food industries. OBJECTIVES The high load of coliforms of treated wastewater effluents that are discharged into the rivers or agricultural lands is a serious concern of the Iran Department of Environment and the...

the evaluation of treatment characteristics and sludge properties of an upflow anaerobic sludge blanket (uasb) process was investigated using a pilot-scale 1.15 m3reactor. the uasb, inoculated with digester sludge, was operated at a hydraulic retention time of 8 h at sewage temperatures ranging from 10.6 to 27.7 °c for more than 1100 days. the stable removal efficiencies for total codcr and ss...

the evaluation of treatment characteristics and sludge properties of an upflow anaerobic sludge blanket (uasb) process was investigated using a pilot-scale 1.15 m3reactor. the uasb, inoculated with digester sludge, was operated at a hydraulic retention time of 8 h at sewage temperatures ranging from 10.6 to 27.7 °c for more than 1100 days. the stable removal efficiencies for total codcr and ss ...

conclusions this is the first report on isolation and identification of two novel lytic myovirus and podovirus from zayandehrood river in isfahan that had lytic effects on e. coli ptcc1399 and e. coli sbswf27 strains as well as coliform's population of isfahan municipal wastewater. we suggest that the use of these lytic coliphages for reduction of coliform's population in sewage could be consid...

soil compaction is one of the most prevailed limitations for crop growth. the use of organic matters as fertilizer on agricultural soils can reduce the effects of soil compaction and provide the nutrients for the plants. so, a factorial experiment was carried out in a randomized complete blocks design with three replications. the first factor was the source and amount of organic fertilizer (far...

In Quebec, municipal sewage sludge application on agricultural lands is relatively recent and there are many concerns related to potential contamination and loss of plant productivity. This study aimed at monitoring the impacts of repeated, long-term application of sewage sludge on agricultural lands under operating field conditions. Eight paired study sites (treated and control) in three regio...

Waste accumulation is reported to be one of the serious environmental problems. Organic wastes such as organic fraction of municipal solid waste (OFMSW) or sewage sludge (SS) can be treated using aerobic microbial decomposition called composting. It is important to know when composts obtained in co-treatment processes turns to be safe but not toxic for the environment. In this study, we estimat...

shortage of irrigation water, being a crucial problem in arid and semiarid regions, makes it necessary to use treated wastewater in agriculture. a field experiment was conducted to investigate the effect of treated municipal wastewater (tmw) on the yield and fiber quality of cotton (gossypium hirsutum l.) (mehr variety). treated municipal wastewater was supplied from shahrake ghods sewage treat...