This study has been conducted form July 2012 to June 2013 to realize the influence of sewage treatment by sedimentation and filtration and use for irrigation of Celery plant Apium graveolens L.Physical and chemical tests has been conducted for irrigation water before cultivation, soil testes included pH , Electrical conductivity, soil texture, cation Exchange Capacity, Organic matter and the concentration of ions and heavy metals,water tests included pH , Electrical conductivity, temperature, Biological Oxygen demand, Total dissolved solids,Total suspended soils and concentration of ions included heavy metals.
Results indicated that treatment by sedimentation and by filtration redused most Physical and chemical values of sewage water as compared with untreared water (control),and the concentration of cadmium and lead in four samples of water in the current study were very low, and not sensed by atomic absorption spectrometer. Zinc ion concentration was not affected significantly in treated water as compared with untreated water (control), and the concentration of lead in parts of the plant was very low, and not sensed in the test, there were no significant changes in cadmium and zinc concentrations in celery roots irrigated with water treated by sedimentation and filtration, while zinc concentrations decreased in celery shoots. Irrigated with water treated by filtration by 58.62%, and the consumption of these crops will cause health problems for community in the future