lysimeter study of fecal coliform transport in treated wastewater under drip irrigation

shortage of fresh water resources is a major worldly concern. accessibility of water forirrigation purposes is also one of the most important concerns in arid and semiaridregions. this is why treated domestic wastewater is thought of as an important watersource. even following treatment, wastewater may contain a great many kinds ofmicroorganisms hazardous to humans and environment. therefore the potentialtransmission of pollution is a principle problem associated with the use of treatedwastewater in agriculture. various irrigation techniques can be employed, associated withtreated wastewater used in agriculture. accordingly, the present study was conducted onfecal coliform in the wastewater treatment in some laboratory columns of 30 cmdiameter and 60 cm height irrigated, using surface drip irrigation (di) vs subsurfacedrip irrigation system (sdi). samples of the effluent and soil solutions were collectedfrom each column after each irrigation event. results revealed that crowds of bacteriarose in either column. there were no significant differences observed between crowds ofbacteria in the effluents of columns in the two irrigation systems. it was also observedthat contamination in the 15 cm layer, in sdi was lower than that in the di column.