الفهرس 
REVIEW OF LITRATUREOnly 14 pages are availabe for public view
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Abstract
The present investigation was carried out at two sites, the firest one is at experimental field in Serabium Forest Plantation, it is irrigated by sewage water, the second plantation is in Groppy nursery, using fresh water for irrigated, during two successive seasons 2018 and 2019 , aimed to study the effect of irrigation with two types of water on some growth paramenters , chemical composition in leaves and root of some woody trees Corymbia citriodora , Cupressus sempervirens and Khaya senegalensis , adding to that chemical properties of planted soil.
Collected data decleared that the growth parameters increased signifanctly in all woody trees by using irrigation with waste water compared with the same woody trees irrigated by fresh water; Results showed significant increases in all growth parameters (the a bove ground biomass (main stem, stem diameter and basal area), Khaya gave the best results followed by corymbia and Cupressus gave the Less results.
Sewage water showed high potentiol for afforestation of multipurpose species of economic importance. Waste water in general and it is not recommended to use it except in planting woody trees, in the interest of the pubic healthy of citizen.
Use of treated waste water in irrigation decleared pathogens in thesoil surface layer .
One of the negative effects of waste water uses in irrigation,it contains heavy metal accumulating year after year in soil and the solve for this proplem is planting wood trees in this soil witch work as a phytoremedation for soil contaminated with heavy metal.
from results, it was concluded that effluent discharged from Ismailia sewage treatment plant to the Serabium Forest Plantation Farms is within the allowable limits of The Egyptian Low44/2000, and WHO (2006). Based on the reduced levels of the TSS, BOD5 and total fecal coliform, it showed that the sewage treatment plant is relatively efficient in reduction of organic and nutrient loads from the sewage water. This way, treatment of sewage effluents before discharge into bodies is vital to prevent pollution and protect the entire environment and public health.