List of Articles Gholam Abbas Fanaei Kheirabad

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  1 - Assessment of interpretation methods to calculate aquifer transmissivity from single-well step drawdown aquifer test
   Hatefi  Etebari  Delkhahi Gholam Abbas Fanaei Kheirabad  Shahsavari
  Since the measured well drawdowns in a single well test does not reflect the aquifer head loss and covering linear and nonlinear well losses, the calculations based on the observed head loss from a pumping well, cannot get a precise estimate of the hydrodynamic paramete More

  Since the measured well drawdowns in a single well test does not reflect the aquifer head loss and covering linear and nonlinear well losses, the calculations based on the observed head loss from a pumping well, cannot get a precise estimate of the hydrodynamic parameters of the aquifer. But when an inexpensive and rapid estimation of aquifer transmissivity is required, using the collected data from a single pumping well is amongst the attractive options. Several methods for estimating borehole loss components has been proposed by various researchers. In this study, methods proposed by Eden-Hazel, Hantush-Biershenk, Kasinow, Miller-Weber and Karami-Younger; suggesting to calculate well loss component (CQn) were assessed to determine the transmissivity of the aquifer using measured head losses from both the pumping well and the adjacent piezometer from some aquifer tests conducted on a number of exploration wells of Khorasan (Razavi and Southern) provinces. The calculated well loss components using Eden-Hazel, Hantush-Biershenk, Kasenow and Miller-Weber methods has a significant difference to the simulated well losses using piezometric data. Karami-Younger method has been able to calculate the CQn value more accurately, about 25% to the simulated value. However, an accurate CQn estimate did not necessarily concluded to an acceptable aquifer transmissivity calculation. In the other words, the results of implementation of this method is more sensitive in sediments with high permeability and lower well losses. Manuscript profile
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  2 - Synthesis of smart nanoparticles polymer for extraction of phenoxy acid herbicides from water samples
  Majid Tashi Gholam Abbas Fanaei Kheirabad sogol mirzaei Mehrdad pakzad  Oskooi noorbakhsh Mirzaei  Heydariyan Dehkordi هادی  تابانی
  Due to their high polarity andsolubility in water these acidic herbicides can be released from harvest fields and therefore pollute surface and ground waters. The World Health Organization (WHO) regulations set 70 ng mL−1 as the maximum contaminant level (MCL) of phenox More

  Due to their high polarity andsolubility in water these acidic herbicides can be released from harvest fields and therefore pollute surface and ground waters. The World Health Organization (WHO) regulations set 70 ng mL−1 as the maximum contaminant level (MCL) of phenoxy acid herbicidesin drinking water [2]. Therefore, the presence of these chemicals inwater sources is highly objectionable for human and animal consumption. Due to the fact that the major sources of drinking water are ground water and river water, monitoring the acidic and polar herbicides in these water sources is quite necessary. Therefore, in this study, we focused on introducing a novel microgel sorbent in which the adsorption and desorption of analytes are controlled only by changing the pH value of the sample. To the best of our knowledge, it is the first report on employing a pH-sensitive magnetic microgel as a new sorbent. In order to increase the adsorption efficiency and rapidly separatethe sorbent from the sample matrix by an external magnetic field, microgel was grafted on magnetic nanoparticles. Finally, the optimized procedure was employed to determine these phenoxy acid herbicides in river water samples. Manuscript profile
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  3 - Design and construction of minipiezometers to determine surface water-groundwater interactions
  Behzad Hammamipour Baranji Gholam Abbas Fanaei Kheirabad  Delkhahi  Hatefi Mokhtar  karami  Najibi
  Understanding the interactions of ground water and surface water is one of the most important challenges among hydrogeologists. Hydraulic gradient between ground water and surface water, as well as hydraulic conductivity of streambed sediments are required to determine More

  Understanding the interactions of ground water and surface water is one of the most important challenges among hydrogeologists. Hydraulic gradient between ground water and surface water, as well as hydraulic conductivity of streambed sediments are required to determine ground water and surface water exchanges. Minipiezometers are simple instruments that measure flow direction and hydraulic gradients between ground water and surface water. Often temporarily installed, minipiezometers are essentially small-scaled versions of piezometers, which are commonly used to make groundwater level measurements. By combining water table data with surface water level measurements, flow direction can be determined. Minipiezometers are typically used in the areas where many measurements are required. Commercial minipiezometers are available, but they are very expensive. The purpose of this paper is to design and construc a low-cost minipiezometer for measuring ground water and surface water exchanges. In this study, a minipiezometer was made by simple and available materials such as steel pipe, steel 3NPSoft rob, clear plastic hose, gas valves, hand vacuum pump, hammer, U-shape clear tubing, graduated manometer board, and graduated transparent plastic cylinder and was successfully tested in the Soleghan River in the west of Tehran. Manuscript profile
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  4 - Investigation of Pollution of Water Resources and Pollution Zoning in the Saroq Watershed (West Azerbaijan Province)
     Shahsavari Gholam Abbas Fanaei Kheirabad فرهاد  اسدیان
  Arsenic is a toxic element with environmental and health risks. The aim of this study is to investigate and monitor arsenic concentration level of pollution and its concentration zoning in the water resources of Saroq watershed. In this study, 45 samples from wells, sp More

  Arsenic is a toxic element with environmental and health risks. The aim of this study is to investigate and monitor arsenic concentration level of pollution and its concentration zoning in the water resources of Saroq watershed. In this study, 45 samples from wells, springs and river were collected in two stages (filtered samples in the first step and bulk samples in the second step). The position of sampling points was determined based on expert judgment and random method. Anions were analyzed by gas chromatography and metals were analyzed by ICP-MS. The overall results indicated that water was polluted by arsenic in some areas. Evaluation of the origin and zoning maps of arsenic in water revealed that the source of pollution is both anthropogenic and geogenic resources. Most of the geogenic sources are located in the north-east and east of the area on the alteration zones and is resulted from Quaternary volcanic rocks forming source of the hot springs in the study area. Mining activities are the most important cause of pollution in the downstream area of the mines in the north of area, thus, it can be said that anthropogenic origin is a major cause of pollution. Transfering and re-deposition of arsenic in the study area is controlled by the solution- deposition and absorb- disposal reactions, which is controlled by Eh and pH. Transporting and re-deposition of arsenic is done by oxy-hydroxides of this element. In general, except for the northern and north-western parts, in most parts of the studied area, the level of pollution is not that much high so by considering appropriate management there will not be much pollution problem in the area. Manuscript profile
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  5 - Ability of Felmann wells to improve the physical and microbial parameters of river water
  Mojtaba G.Mahmoodlu Mostfa Seyed Seyd Mostafa Khezri Gholam Abbas Fanaei Kheirabad  
  Riverbank filtration can be used as an effective and low-cost method for water treatment of rivers for drinking purposes. In alluvial land consisting of loose sediments (e.g., sand or gravel) with a water table near land surface, one of the most economical methods for e More

  Riverbank filtration can be used as an effective and low-cost method for water treatment of rivers for drinking purposes. In alluvial land consisting of loose sediments (e.g., sand or gravel) with a water table near land surface, one of the most economical methods for extracting water in large volumes is the use of wells with large diameter such as Felmann Well. In this study, we investigated the effect of Felmann Wells and riverbank filtration process on improving the water quality parameters of surface water. For this, Doogh River and a Felmann Well were sampled simultaneously within a 5-month period. SPSS software and T-tset were used to determine the significant difference between data obtained from chemical analysis. Comparison of water quality parameters of Doogh River and Felmann Well showed that riverbank filtration can play an important role in reducing the physical and biological parameters of water in Felmann Well drilled near the river. For drinking water purpose, the water quality of both Doogh River and Felmann Well was investigated using WQI (Water Quality Index). Hence, the WQI for Doogh River water varied from 50 to 57, which indicated the average quality of the water of the Doogh River. While, WQI value varied from 64 and 75 for the Felmann well representing a good water quality in the well. Results of this study showed that the Felmann wells which were drilled near the riverbank can play an important role in improving the water quality parameters of surface water for drinking purposes. Manuscript profile
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  6 - Separation of geochemical anomalies from the background by using concentration-number fractal methods in the Veshnavah Area (South of Qom)
  Mohammad salehi HamidReza Nasseri Masoumeh Ahangari Fatemeh Asgari Gholam Abbas Fanaei Kheirabad Farshad Alijani
  20.1001.1.17357128.1399.14.53.1.8
  In this study, the concentration-number fractal method was used for regional exploration studies, and determining the anomalies of copper, lead and zinc elements. For this purpose, 800 samples of stream sediments were selected from the rivers in the area (i.e. from Kaha More

  In this study, the concentration-number fractal method was used for regional exploration studies, and determining the anomalies of copper, lead and zinc elements. For this purpose, 800 samples of stream sediments were selected from the rivers in the area (i.e. from Kahak and Aran geological maps, 1: 100,000 sheets) and then the anomalies of these elements were mapped. The results show that strong copper anomalies are observed in the northern, central, southern and western parts of the area and the highest lead anomalies are located in the western part of the area. Strong anomalies of the zinc element are located in the central, southern and western parts of the region. These anomalies coincide with the lithological units of andesitic- basalt lava, volcanic breccia, tuffs, dacites, small scale masses of quartz -diorite, and small-scale masses of quartz-monzonite. The obtained map from combining anomalies and faults map reveals that the anomalies are mostly concentrated in fault zones and fault intersection points in the area and faults play a fundamental role in ore mineralization. Manuscript profile