Tayebeh Tabatabaie - Academia.edu (original) (raw)

Papers by Tayebeh Tabatabaie

Iranian Journal of Energy and Environment

Large volumes of contaminated industrial wastewater have caused growing concern among researchers... more Large volumes of contaminated industrial wastewater have caused growing concern among researchers and environmentalists. Benzene, toluene, ethylbenzene, xylene, and styrene (BTEXS) cyclic hydrocarbons in industrial effluents are often completely stable to biodegradation and must be treated before disposal. In this context, using adsorption processes is a potential alternative for treating a wide range of organic pollutants, especially aromatic compounds in industrial wastewater. This study investigated the preparation of MCM-41 from silica; extracted from rice husk ash; MCM-41 was green synthesized to evaluate the effect of mesoporous used in BTEXS removal of an aqueous medium using the Taguchi method. The aqueous solution contains cyclic hydrocarbons was synthetically prepred based on real industrial effluent in concentrations of 50, 100, and 150 mg/l using MCM-41 catalysts, in doses of 0.1, 0.5, and 1g, at different pH values. In the present study, the optimum results obtained by Taguchi method analysis were pH =11, for duration of 60 minutes, the concentration of cyclic hydrocarbon solution BTEXS 100 mg/l, and nanoparticle dose of 0.5 g. The maximum BTEXS removal of 77.36% was achieved by the use of hydrogen peroxide.

International Journal of Environmental Analytical Chemistry

This work aims to study derivative removal of gentamicin (GMC) antibiotic from the aqueous soluti... more This work aims to study derivative removal of gentamicin (GMC) antibiotic from the aqueous solution within photocatalytic process using a recyclable magnetic titania (MT) photocatalyst. The MT phot...

Environmental Geochemistry and Health

South Pars Industrial Zone is located near an Assaluyeh city on the coast of the Persian Gulf and... more South Pars Industrial Zone is located near an Assaluyeh city on the coast of the Persian Gulf and is known as the energy capital of Iran. In this study, environmental and health effects due to PCB components had an assessment. In this study, 10 air stations, 10 seawater, and sediments stations were systematically selected and sampled in two seasons. Air, seawater and sediment pollution made by polychlorinated biphenyls (PCBs) were evaluated. Seawater-sediment exchange conditions using the fugacity coefficient reviewed. PCB levels in marine sediments, seawater, and air-based on the analysis of the obtained data were 107.33-172.92 ng / g, ND-135.68 μg / l, and ND-4.4 ng / m3, respectively. The highest concentration was observed in the vicinity of refineries, petrochemicals, and petroleum export facilities. These values had increased significantly compared to values of studies, conducted in similar areas. The sources were electrical wastes, storage sites, power generation units, and wa...

Environmental Monitoring and Assessment, 2022

Benzene, toluene, ethylbenzene and xylene (BTEX) are a challenging group of volatile organic comp... more Benzene, toluene, ethylbenzene and xylene (BTEX) are a challenging group of volatile organic compounds in industrial and energy areas. Since these aromatics may cause serious diseases such as cancer and respiratory illnesses, they must be monitored. Pars Special Economic Energy Zone (PSEEZ) in Iran is the second largest energy zone of the world with numerous gas refineries and petrochemical complexes for producing a wide range of products. This study is focused on determination of BTEX concentration in the whole South Pars area (46 sampling points) which is the active site of PSEEZ using passive sampling. Then, the results of the passive sampling are used for providing spatial distribution of BTEX using GIS. The annual BTEX measurements revealed that benzene and toluene concentration violates the maximum permitted values at numerous points most of which are located in the vicinity of petrochemical complexes. Active sampling in these complexes not only confirms the results of passive sampling, but also suggests a more intensified BTEX pollution in the air quality of the area which reaches as high as 3500 μg.m −3 and 18,000 μg.m −3 for benzene and toluene, respectively, being far beyond the acceptable standards. Health risk analysis also confirms the intensity of BTEX at the selected points. This study suggests a reconsideration of the location of non-operational sites and personnel who are more vulnerable to BTEX contamination. Also, BTEX profile provided by GIS in this research gives a suitable plan for relocating.

Arabian Journal of Geosciences, 2021

We developed geospatial models to forecast the concentration of air pollutants in different land ... more We developed geospatial models to forecast the concentration of air pollutants in different land uses over two seasons as cold (December, 2017) and warm (September, 2018) in Bushehr city. The samples were taken during three repetitions in three consecutive weeks encompassing SO2, CO, and NO2 focus specimens at 10 sites in four zones (traffic, industrial, residential, and recreational) over two seasons as cold (December, 2017) and warm (September, 2018). The SO2, CO and NO2 contributions were gathered by NIOSH guidelines samplers and dissected by analyzers models AF22M, CO12M, and AC32M, respectively. Multivariate analysis results show clusters in land use and sampling period in two main groups: (I) traffic and (II) industrial, residential, and recreational, in the warm and cold season. The result of our research shows that the traffic factor still contributes SO2, CO, and NO2 emissions in the warm season. The spatial variation of air quality index (AQI) of all sample sites was measured in the warm and cold seasons, and the value of this index was higher in traffic areas of the city (entrance and central area) than in another land.

This investigation aimed to remove phenol from a real wastewater (taken from a petrochemical comp... more This investigation aimed to remove phenol from a real wastewater (taken from a petrochemical company) by activating peroxy-monosulfate (PMS) using catalysts extracted from pier waste sludge. The physical and chemical properties of the catalyst were evaluated by FE-SEM/EDS, XRD, FTIR, and TGA/DTG tests. The functional groups of O-H, C-H, CO32-, C-H, C-O, N-H, and C-N were identified on the catalyst surface. Also, the crystallinity of the catalyst before and after reaction with petrochemical wastewater was 103.4 nm and 55.8 nm, respectively. Operational parameters of pH (3-9), catalyst dose (0-100 mg/L), phenol concentration (50-250 mg/L), and PMS concentration (0-250 mg/L) were tested to remove phenol. The highest phenol removal rate (94%) was obtained at pH=3, catalyst dose of 80 mg/L, phenol concentration of 50 mg/L, PMS concentration of 150 mg/L, and contact time of 150 min. Phenol decomposition in petrochemical wastewater followed the first-order kinetics (k> 0.008 min-1, R2&g...

Environmental Science and Pollution Research, 2021

Novel copper-nickel ferrite nanocatalyst loaded on multi-walled carbon nanotube (MWCNTs-CuNiFe2O4... more Novel copper-nickel ferrite nanocatalyst loaded on multi-walled carbon nanotube (MWCNTs-CuNiFe2O4) was synthesized and applied to activate peroxymonosulfate (PMS) in the degradation of the reactive black 5 (RB5). The structure of the catalyst was well characterized by scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FTIR), and X-ray powder diffraction (XRD). The MWCNTs-CuNiFe2O4/PMS system showed a high performance in the degradation of RB5 with a kinetic rate of 1.5–2.5 times higher than homogeneous and heterogeneous systems. Maximum degradation efficiency (99.60%) was obtained at an initial pH of 7, catalyst dosage of 250 mg/L, PMS dosage of 4 mM, the temperature of 25 °C, and reaction time of 15 min. Anion experiments emphasized that the presence of nitrate, carbonate, and phosphate in the solution reduced the degradation efficiency by producing reactive species with low oxidation potential. The RB5 degradation rate evolved with temperature, and the activation energy was obtained to be 44.48 kJ/mol. The mechanism of PMS activation and production of free radicals was proposed based on tert-butyl alcohol (TBA), ethanol (EtOH), and potassium iodide (KI) scavengers. Trapping experiments showed that both sulfate (SO4•-) and hydroxyl (•OH) radicals are involved in the catalytic degradation of RB5. The effective treatment of real wastewater and tap water by the MWCNTs-CuNiFe2O4/PMS system requires a long reaction time. Gas chromatography-mass spectrometry (GC-MS) analysis indicated that RB5 can be degraded via methylation, decarboxylation, hydroxylation, and ring/chain cleavage pathways. The stable catalytic activity after three consecutive cycles suggested that MWCNTs-CuFe2O4 is a novel reusability catalyst in PMS activation.

RSC Advances, 2020

A magnetically separable MIL-101(Cr)/CoFe2O4binary nanocomposite was preparedviaa hydrothermal ro... more A magnetically separable MIL-101(Cr)/CoFe2O4binary nanocomposite was preparedviaa hydrothermal route and applied as a sonocatalyst for the efficient degradation of organic dyes.

Central Asian Journal of Water Research, 2021

The study investigated the effects of pre-ozonation on the parameters such as turbidity, color, c... more The study investigated the effects of pre-ozonation on the parameters such as turbidity, color, chlorophyll a and TOC on a pilot scale. The investigation results indicate that the amount of required ozone to remove TOC, color and turbidity depends on the quality of inlet water, and the efficiency of water ozonation depends on the process factors such as ozone dose, temperature, pH and ozone-water contact time. The study likewise shows that the lower amount of turbidity, TOC, temperature and higher alkaline pH of sample water boost the ozonation effect on removing the variables in question. The results also demonstrate a direct relationship between pH, ozone dosage and contact time, as well as an indirect relationship between temprerature and the removal of parameters.

Chemosphere, 2021

In this study, wasted sediment (sludge waste from shipping docks) was coupled with titanium isopr... more In this study, wasted sediment (sludge waste from shipping docks) was coupled with titanium isopropoxide by the thermal and sol-gel method as a new photocatalyst. The sediment-titanate catalyst alongside ultrasonic and UV was activated hydrogen peroxide to produce OH radicals and decompose cephalexin (CEP). The photocatalyst was crystalline with 52.29 m2/g BET area. The best destruction rate of 87.01% based on COD test was achieved at optimal conditions (pH: 8, cephalexin concentration: 100 mg/L, H2O2: 1.63 mg/L, UV: 15 W/m2, ultrasonication time: 100 min at 40 kHz, photocatalyst quantity: 1.5 g/L). The trend of anions effect was NO3- ≤ SO42- ≤ Cl-. Decomposition of cephalexin in water solution followed the first-order kinetics (k > 0.01 min-1, R2 > 0.9). The percentage of cephalexin removal from urban water (76%) and hospital wastewater (63%) has decreased compared to the distilled water solution (87%), which is probably due to the presence of radical inhibitors. The consumed electrical energy of the studied system was calculated by 0.031 kW/h. The developed system is a promising and economical method to remove cephalexin.

Arabian Journal of Geosciences, 2020

The condition of groundwater pollution in Torghabeh-Shandiz of Khorasan County has become a major... more The condition of groundwater pollution in Torghabeh-Shandiz of Khorasan County has become a major problem, especially in regard to the expanding population and human activities. The aim of this study of assessing the groundwater vulnerability of this region using a GIS, DRASTIC, and modified DRASTIC techniques. The layer of seven parameters (depth to the water table, net recharge, aquifer media, soil media, topography, the impact of vadose zone, and hydraulic conductivity) was converted to thematic maps with GIS. The DRASTIC map was combined with the land use map for producing the modified DRASTIC map to assess the effect of land use activities on the groundwater vulnerability. The result of the difference area% between DRASTIC and modified DRASTIC methods shows that the percentage of low vulnerability areas have decreased by 27.4%, by applying this modified method. In contrast, the areas of moderate to very high vulnerability increased by 19.8% and 5.4%, respectively. In DRASTIC and modified DRASTIC methods, the very high vulnerability zone is present towards the northeast region. The river flows from the northeast region of the watershed allows more recharge of water, which may drain the fertilizers from the surrounding agricultural lands along with it to the groundwater and hence leads to groundwater vulnerability of this region. The very low vulnerability and low vulnerability zones are present in the western and central portions of the watershed. To check the reliability of the modified DRASTIC index map in the field condition, groundwater samples were collected for the analysis of nitrate, which is found as one of the pollutants in groundwater resulting due to use of fertilizers during agriculture. The calibration results suggested that the modified DRASTIC index significantly affects the study area. Nitrate is important to obtain better results in the vulnerability map, considering that most of the lands in the study area are agricultural.

Journal of Environmental Health Engineering, 2020

Background and objectives: The Physical, chemical and biological parameters one of the most impor... more Background and objectives: The Physical, chemical and biological parameters one of the most important factors determining the quality of drinking water. The overall purpose of this project is to investigate how the quality of water entering the plant in changing the watercolor and creating the foams in different units of water purification. Methods: This study is a case study and in real scale on the raw water inlet to the Koohsabz drinking water treatment plant has been done. The study was conducted over a period of 6 months (February 2016 to July 2017). In the first stage, the raw water quality was assessed according to standard methods. In the second step, the effect of each of the parameters on the color and foam formation in the water treatment process units and the mechanism of effects have been examined. Results: Average changes in temperature, turbidity, the color of the water entering the plant during the study period were 15.8oC, 6NTU, and 6TCU respectively and pH ranges from 6.9 to 8.4. Mean change of EC, TOC and DOC respectively is; 765 μS / cm, 5.8mg /l and 3.53mg /l. The average change UV254 and SUVA were 0.178 l / m and 5.856 L/ mg, respectively. Also, the mean changes of humic acid, surfactant, and chlorophyll a in the input raw water were 0.24, 0.05 mg / l and 2.4 μg/m2, respectively. Conclusion: Investigations showed that the water quality parameters of water entering the treatment plant are effective in creating color and foam in water treatment process units.

Journal of Water and Soil Science, 2018

Environmental Health Engineering and Management, 2019

Background: Ozone can be used as a single technology or in combination with other processes to im... more Background: Ozone can be used as a single technology or in combination with other processes to improve the coagulation- flocculation or biodegradability in order to remove pollutants in natural water treatment. Methods: In this study, the effects of pre-ozonation with coagulant substances on the quality parameters of drinking water were investigated using humic acid, kaolin, clay, and green algae in a pilot scale. This study was conducted under laboratory conditions (at both acidic and alkaline pH in different dosages of ozone and coagulant at ozone contact time with simulated water sample (5-20 minutes) in different scenarios). Results: The highest removal efficiency of parameters in the state of pre-ozonation alone and preozonation with a coagulant was observed at contact time of 20 minutes, ozone dosage of 5 g/h, coagulant dosage of 25 mg/L, at alkaline pH along with a decrease in temperature. So that, the average removal rate of turbidity, total organic carbon (TOC), color, and ...

Water Science and Technology, 2019

This study aimed to investigate the effect of sodium ferrate synthesized from industrial effluent... more This study aimed to investigate the effect of sodium ferrate synthesized from industrial effluents (SF-W) and that of synthetized from analytical grade chemicals (SF-O) on total organic carbon (TOC) removal from surface water. Response surface methodology (RSM) was used to optimize the operating variables such as pH, dosing rate, rapid mixing time, and gentle mixing speed on TOC removal. A TOC removal of 89.805% and 79.79% was observed for SF-O and SF-W, respectively. Ferrate as SF-O and SF-W demonstrated 26.67% and 8.51% more TOC removal at a lower dosage compared to conventional chemicals such as chlorine, ozone, poly aluminum chloride (PAC) and polyelectrolyte. The optimum conditions of the independent variables including sodium ferrate (SF-O and SF-W), pH, rapid mixing time and gentle mixing speed were found to be 1.54 mg/L and 2.68 mg/L, 8.5, 30 s at 120 rpm for coagulation followed by 20 min of gentle mixing. Economic analysis showed that the application of SF instead of conve...

World Environmental and Water Resources Congress 2009, 2009

1 EPM Approach for Erosion Modeling by Using RS and GIS (case study: Ghareh Aghach watershed, Ira... more 1 EPM Approach for Erosion Modeling by Using RS and GIS (case study: Ghareh Aghach watershed, Iran) Fazel Amiri Islamic Azad University Introduction: The over population in the world have lead to an increased demand for food and other necessities of human beings. ...

SUMMARY Operational monitoring of vegetative cover by remote sensing currently involves the utili... more SUMMARY Operational monitoring of vegetative cover by remote sensing currently involves the utilisation of vegetation indices. Vegetation indices are widely used for assessing and monitoring ecological variables such as vegetation cover, above-ground biomass and leaf area index. This study reviewed and evaluated different vegetation indices for estimating vegetation cover in rangelands in Center of Iran. All vegetation indices were calculated from ASTER (Advanced Spaceborn Thermal Emission and Reflection Radiometer) image data and compared with vegetation cover estimates at monitoring points made during field assessments. Relationships between various vegetation indices and vegetation cover were compared using simple linear regression. NDVI vegetation index evaluated, using high infrared and low red ASTER bands, consistently showed significant relationships with vegetation cover. Estimation of vegetation cover whit NDVI vegetation index was more accurate and total perennial and ephe...

Environmental Monitoring and Assessment, 2013

One hundred and thirty composite soil samples were collected from Hamedan county, Iran to charact... more One hundred and thirty composite soil samples were collected from Hamedan county, Iran to characterize the spatial distribution and trace the sources of heavy metals including As, Cd, Co, Cr, Cu, Ni, Pb, V, Zn, and Fe. The multivariate gap statistical analysis was used; for interrelation of spatial patterns of pollution, the disjunctive kriging and geoenrichment factor (EF G) techniques were applied. Heavy metals and soil properties were grouped using agglomerative hierarchical clustering and gap statistic. Principal component analysis was used for identification of the source of metals in a set of data. Geostatistics was used for the geospatial data processing. Based on the comparison between the original data and background values of the ten metals, the disjunctive kriging and EF G techniques were used to quantify their geospatial patterns and assess the contamination levels of the heavy metals. The spatial distribution map combined with the statistical analysis showed that the main source of Cr, Co, Ni, Zn, Pb, and V in group A land use (agriculture, rocky, and urban) was geogenic; the origin of As, Cd, and Cu was industrial and agricultural activities (anthropogenic sources). In group B land use (rangeland and orchards), the origin of metals (Cr, Co, Ni, Zn, and V) was mainly controlled by natural factors and As, Cd, Cu, and Pb had been added by organic factors. In group C land use (water), the origin of most heavy metals is natural without anthropogenic sources. The Cd and As pollution was relatively more serious in different land use. The EF G technique used confirmed the anthropogenic influence of heavy metal pollution. All metals showed concentrations substantially higher than their background values, suggesting anthropogenic pollution.

Bulletin of Environmental Contamination and Toxicology, 2011

Anzali and Gomishan wetlands are considered as two of the most important wetlands in southern coa... more Anzali and Gomishan wetlands are considered as two of the most important wetlands in southern coast of Caspian Sea. To investigate mercury accumulation in these ecosystems, total mercury concentrations were measured in the muscle tissue of two fish species. Higher mercury concentrations were detected in C. carpio, an omnivorous benthic/pelagic species (Anzali wetland: 0.2 lg g-1 wet weight; Gomishan wetland: 0.2 lg g-1 wet weight), than in S. lucioperca, a carnivorous pelagic species (Anzali: 0.06 lg g-1 wet weight; Gomishan: 0.15 lg g-1 wet weight).