STUDY ON THE REUSE OF ZAMYAD FACTORY WASTEWATER TREATMENT PLANT EFFLUENT IN IRRIGATION

Considering the population increase in the cities and also the increase of per capita water consumption inthese societies, the use of treated effluents for the green area irrigation has been taken into consideration .human ever-increasing needs to green area in municipal societies and on the other hand the limitations inwater supplies cause a new review in wastewater reuse. also making use of treated effluents in irrigationhas some limitations including clogging of the soil porosities, increasing of the chemicals and toxicsubstances to plants and increasing the probability of groundwater pollution. in this research, consideringthe indicators using recognition of the effluent ' s quality, at the first stage compound samples of domesticwastewater treatment effluents of zamyad factory were taken. the samples were tested from theviewpoint of quality. results showed that the indicator of sodium adsorption ratio, sodium percentage,amounts of chloride, and electrical conductivity comparing to food and agriculture organization anddepartment of the environment of iran standards were higher than the standard levels. also parameterssuch as tds, tss, bod, cod, anions and cations were in standard levels. results also showed that theincrease of some of the undesirable parameters was not related to the operation of wastewater treatmentplant. therefore, in order to make the standard effluent, different methods may be proposed and the mostpractical and economical one is dilution by using 50% mixing with raw water.