Mostafa Beda*(1) Muhammad Haqqoun(1) and Abeer Karbouj(1)
(1). Administration of Natural Resources, General Commission for Scientific Agricultural Research GCSAR, Damascus, Syria.
(*Corresponding author: Dr. Mostafa Beda. E-Mail: bedda.agri@hotmail.com).
Received: 17/03/2018 Accepted: 06/07/2018
Abstract
Adra Sewerage Processing Station receives sewage water for treatment and then pumps it again into open effluent canals to be used by farmers to irrigate their lands. However, the many infringements on open effluent canals by farmers and neighboring factories have changed the chemical properties of this water, leading to a decline in water quality and thus limiting the possibility of using this source for irrigation purpose. Therefore, this research aimed to monitor the changes occurred in some chemical characteristics of wastewater along effluent canal starting from settlement reservoir located after Adra Sewerage processing Station, extending along the effluent canal (PC2) and ending in Nashabia area, during the years 2010-2012. The results showed a significant increase in ammonium in PC2 compared to both MC and settlement reservoir, which amounted (35, 27 and 15) mg/l respectively, Nitrate concentration in PC2 and MC increased with a significant difference compared to the concentration in settlement reservoir, where it reached (10.5, 9.4 and 6.4) mg/l respectively, while the differences were not significant for nitrite concentration and pH between the three sites. The results also showed an increase in salinity in PC2 and MC with a significant difference compared to the settlement reservoir with a value of (1.32, 1.26 and 0.92) d.s/m respectively. Also, COD increased in PC2 and MC with a significant difference compared to the settlement reservoir by (225, 216 and 58) mg/l respectively. BOD value increased in PC2 and MC significantly than the increase in settlement reservoir.
Keywords: Settlement reservoir, MC, PC2, BOD, COD, Ammonium, Nitrate, EC.
Full Paper in Arabic: PDF