The hydrological evaluation of Rasht Landfill performance

Subject Areas :

Mohammad Nakhaei ¹ , Hamid Reza Nassery ² , Vahab Amiri ³

1 - دانشیار هیدروژئولوژی، دانشکده علوم زمین، دانشگاه خوارزمی، تهران
2 - دانشیار هیدروژئولوژی، دانشکده علوم زمین، دانشگاه شهید بهشتی، تهران
3 - دانشجوی دکتری هیدروژئولوژی، دانشکده علوم زمین، دانشگاه خوارزمی، تهران

Received: 2016-09-07 Accepted : 2016-09-07 Published : 2012-09-22

Keywords: Rasht, Geoelectrical sounding, Hydrological evaluation, Rate of leachate production,

Abstract :

Nowadays, the pollution generated from municipal waste disposal sites is considered as one of the serious threatsfor environment and underground water resources. In the present study, Rasht Landfill is assessed as one of thecontamination sources in the northern part of Iran. Located in Saravan region, the Landfill is the only landdisposal site located in 20 kilometers south of Rasht and is situated at altitude of 200 meters from sea level. Inorder to determine the structural characteristics, the geological maps of the study area and data from 4 geoelectrical sounding around the landfill site been used. Using 4 samples of sediments from places where the geoelectrical sounding was implemented, the sedimentological analysis was carried out by graining these samples.The results indicate that the sediment thickness and depth of bed rock surface is very low. In this study, VisualHELP software was used to determine the leachate generation rate. The hydrological evaluation of Rasht Landfillperformance followed for two periods of 15 and 50 years ,regarding the climate information of Rasht station asthe nearest synoptic station to waste disposal site and structural features of this site. Based on the considerations,the amount of leachate generation and leaking from the Landfill determined equal to 0.69 m per year.