en
jalali
1395
12
1
gregorian
2017
3
1
4
1
online
1
fulltext
en
Geohelminthic: human ascariasis and trichuriasis in Mazandaran province, northern Iran
Background: Ascariasis and trichuriasis are the most common intestinal geohelminthic diseases, and as such they are significant in terms of clinical and public health. This study was done to determine prevalence, status and geographic distribution patterns for Ascariasis and Trichuriasis. The study was done in the period 1991-2014 in northern Iran using Aregis 9.2 software.
Methods: This was a review study, using description and analysis, of geographical distribution of Ascaris and Trichuris relating to townships in Mazandran province, northern Iran, covering a 23-year period. Data were collected from a review of the relevant literature, summarized and classified using Arc GIS, 9.2 to design maps and tables.
Results: Based on results presented in tables and maps, means for prevalence of Ascaris and Trichuris were divided into five groups. The maximum prevalence rate of Ascaris was 16.3% reported in rural areas of Tonkabon in 1981-1982. Prevalence means for Ascaris in the central and western areas of Mazandaran province were 2%-4% and 4%, respectively. The maximum prevalence of Trichuris in the rural area of Tonkabon was 22.5% and the lowest 0.06% was among the cattle breeder’s in rural areas of the province at in 2002-2003.
Conclusion: Data presented in this study provides information useful to health care workers researchers and health administrators, especially for physicians, clinicians and for future research. Also, it is necessary to control and prevent geohelminthic parasitic infections, particularly in rural areas by public education for families, health authorities and health care systems.
Geohelminths, Ascariasis, Trichuriasis, Geographical distribution
1
6
http://ehemj.com/browse.php?a_code=A-10-93-12&slc_lang=en&sid=1
2017/03/17
1395/12/27
2017/03/17
1395/12/27
Hajar
Ziaei
Toxoplasmosis Research Center, Mazandaran University of Medical Sciences, Sari, Iran
0031947532846002793
0031947532846002793
No
Fatemeh
Sayyahi
Research Committee, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
0031947532846002794
0031947532846002794
No
Mahboobeh
Hoseiny
GIS Research Center, Mazandaran University of Medical Sciences, Sari, Iran
0031947532846002795
0031947532846002795
No
Mohammad
Vahedi
Faculty Member, Department of Microbiology, Mazandaran University of Medical Sciences, Sari, Iran
0031947532846002796
0031947532846002796
No
Shirzad
Gholami
Molecular and Cell Biology Research Center, Department of Parasitology and Mycology, Mazandaran University of Medical Sciences, Sari, Iran
sgholami200@gmail.com
0031947532846002797
0031947532846002797
Yes
en
Hydrogen sulfide and organic compounds removal in municipal wastewater using ferrate (VI) and ultraviolet radiation
Background: In this study, ferrate (VI) and ultraviolet (UV) radiation were employed to remove hydrogen sulfide from municipal wastewater resulting in a reduction in chemical oxygen demand (COD). Although ferrate (VI) and UV have been used individually for the removal of a few pollutants from urban and industrial wastewater, there exists no study to investigate the effectiveness of simultaneous utilization of both methods for the removal of hydrogen sulfide and reducing COD.
Methods: This study aims to compare the application of UV, ferrate (VI) and UV/ferrate (VI) for the removal of hydrogen sulfide and COD from municipal wastewater in batch mode. Moreover, the effect of many parameters such as ferrate (VI) concentration, temperature, hydraulic retention time (HRT) and pH on ferrate (VI) oxidation power, were investigated.
Results: The results of this study demonstrated that for pH less than 2, higher pollutant removal efficiency was obtained. COD removal efficiency could increase up to 68% by adding 1.68 mg/L of ferrate (VI), almost 100% of hydrogen sulfide was removed by the same concentration of ferrate (VI). Both hydrogen sulfide and COD removal efficiencies increased as temperature increased to 50°C; nevertheless, further increase in temperature had negative effect on the removal efficiency. The use of UV/ferrate (VI) increased the removal efficiency of both hydrogen sulfide and COD when compared with the use of UV and ferrate (VI) individually. UV method was not effective in the removal of hydrogen sulfide.
Conclusion: The research findings shed new light on wastewater treatment systems employing UV/ ferrate (VI) to decrease both the hydrogen sulfide and COD of municipal wastewater. This new findings will assist in the inaccurate design and effective operation of such systems which can be employed to maintain or improve environmental quality.
Ferrate (VI), Hydrogen sulfide removal, Organic compounds removal, Ultraviolet
7
14
http://ehemj.com/browse.php?a_code=A-10-93-6&slc_lang=en&sid=1
2017/03/172017/02/25
1395/12/7
2017/03/172017/02/25
1395/12/7
Amirreza
Talaiekhozani
Civil Engineering Department, Jami Institute of Technology, Isfahan, Iran
atalaie@jami.ac.ir
0031947532846002798
0031947532846002798
Yes
Zeinab
Eskandari
Chemical Engineering Department, Jami Institute of Technology, Isfahan, Iran
0031947532846002799
0031947532846002799
No
Mohammad Reza
Talaei
Chemical Engineering Department, Shiraz University, Shiraz, Iran
0031947532846002800
0031947532846002800
No
Malihe
Salari
Civil Engineering Department, Jami Institute of Technology, Isfahan, Iran
0031947532846002801
0031947532846002801
No
en
Removal of bromide from aqueous solutions using the UV/ZnO
process based on the multivariate analysis model
Background: Bromide is found naturally in groundwater and surface water. The rapid growth of industrial activities, drainage of surface runoff, and use of methyl bromide in pesticides has increased bromide discharge to the environment. Disinfection of water-containing bromide causes the creation of additional products of organo-halogenated that are considered cancer-causing agents. In this study, the effect and optimization of factors in removal of this ion was evaluated by using the nano-photocatalytic UV/ZnO process.
Methods: This analytical study was conducted in a batch system by the phenol-red method. The test design was performed through the analysis model of multi-factor variance with 99 subjects, while the main, interactive, and reciprocal effects of variables, such as reaction time, catalyst concentration, bromide concentration, and pH at different levels of each factor, were analysed by using SPSS version 16.
Results: The main, interactive, and reciprocal effects of factors were significant in three different levels with P < 0.001, and the optimal level of the factors reaction time, catalyst concentration, bromide concentration, and pH were 120 minutes, 0.5, 0.1, and 7 mg/L, respectively, by using the Schaffer test. The highest removal efficiency of 95% was obtained at least 91.56 and a maximum of 94.76% was obtained under optimal conditions of all factors.
Conclusion: The results show that by optimization of factors, this process can be effectively used to remove bromide from aquatic environments.
Bromides, Water, Reaction Time, UV/Zn
15
19
http://ehemj.com/browse.php?a_code=A-10-93-10&slc_lang=en&sid=1
2017/03/172017/02/252017/02/28
1395/12/10
2017/03/172017/02/252017/02/28
1395/12/10
Kolsoom
Mohammad Moradi
Environment Health Engineering, School of Public Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
0031947532846002802
0031947532846002802
No
Kavous
Dindarloo
Environment Health Engineering Department, School of Public Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
Kdindarloo@yahoo.com
0031947532846002803
0031947532846002803
Yes
Vali
Alipour
Environment Health Engineering Department, School of Publish Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
0031947532846002804
0031947532846002804
No
Mohsen
Heidari
Environment Health Engineering Department, School of Publish Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
0031947532846002805
0031947532846002805
No
en
Groundwater quality assessment using the water quality pollution indices in Toyserkan Plain
Background: Iran is located within the dry and semi dry regions, thus almost 90% of the required water is secured via the use of groundwater. Owing to the increasing pollution of water resources, this study was performed to evaluate water quality pollution indices for heavy metals (As, Zn, Pb and Cu) contamination monitoring in Toyserkan Plain during spring and summer in 2012.
Methods: A total of 20 ground water wells were chosen randomly. The samples were filtered (0.45 μm) and kept cool in polyethylene bottles. Samples were taken for the analysis of metals, the former was acidified with HNO3 to pH lower than 2. Metal concentrations were determined using ICP-OES.
Results: The results revealed that the mean values of contamination index (Cd), heavy metal pollution index (HPI) and heavy metal evaluation index (HEI) in samples for spring season were -2.81, 9.74 and 1.20, respectively and were -2.67, 9.51 and 1.32, respectively in samples for summer season and this indicates low contamination levels. Comparing the mean concentrations of the evaluated metals with WHO permissible limits demonstrated a significant difference (P < 0.05). Thus, the mean concentrations of the metals were significantly lower than the permissible limits.
Conclusion: Although the heavy metal pollution of the ground water in Toyserkan Plain is not higher than permissible limits, the irregular and long-term utilization of agricultural inputs, use of wastewater and sewage sludge in agriculture, over utilization of organic fertilizers and establishment of pollutant industries can threaten the ground water, and cause irreversible damages in this area.
Heavy metals, Groundwater, Water quality pollution indices, Toyserkan Plain
21
27
http://ehemj.com/browse.php?a_code=A-10-1-72&slc_lang=en&sid=1
2017/03/172017/02/252017/02/282017/03/5
1395/12/15
2017/03/172017/02/252017/02/282017/03/5
1395/12/15
Soheil
Sobhanardakani
Department of the Environment, College of Basic Sciences, Hamedan Branch, Islamic Azad University, Hamedan, Iran
s_sobhan@iauh.ac.ir
0031947532846002806
0031947532846002806
Yes
Lobat
Taghavi
Department of the Environmental Pollution, College of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran
0031947532846002807
0031947532846002807
No
Behzad
Shahmoradi
Kurdistan Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
0031947532846002808
0031947532846002808
No
Amin
Jahangard
Young Researchers & Elite Club, Hamedan Branch, Islamic Azad University, Hamedan, Iran
0031947532846002809
0031947532846002809
No
en
Removal of Congo red dye from aqueous solutions by a low-cost adsorbent: activated carbon prepared from Aloe vera leaves shell
Background: Synthetic dyes have several harmful effects on human health as well as aquatic life. In this study, activated carbon (AV-AC), based on Aloe vera leaf shells, was used as a novel agricultural adsorbent, one that is low-cost and available for the removal of Congo red (CR) as a carcinogenic dye from aqueous solutions.
Methods: In the batch system, the influence of different parameters like contact time, pH, adsorbent dosage, and initial CR concentration were examined on the dye removal from liquid medium. The experimental data were fitted by pseudo-first-order and pseudo-second-order kinetics, and also Langmuir and Freundlich isotherms models.
Results: The optimum contact time and pH for the uptake of CR were obtained at 20 minutes and acidic pH of 2. The maximum uptake capacity of CR dye by AV-AC was 1850 mg/g. The results showed that the experimental data were well-fitted by the pseudo-second-order kinetic model (R2 > 0.99) and Freundlich isotherm model (R2 > 0.99).
Conclusion: According to the results of our study, the AV-AC is a low-cost, non-toxic, and effective adsorbent for the uptake of CR dye from aqueous media.
Aloe Vera, Congo red, Kinetic, Charcoal
29
35
http://ehemj.com/browse.php?a_code=A-10-93-13&slc_lang=en&sid=1
2017/03/172017/02/252017/02/282017/03/52017/03/17
1395/12/27
2017/03/172017/02/252017/02/282017/03/52017/03/17
1395/12/27
Yusef Omidi
Khaniabadi
Health Care System of Karoon, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
0031947532846002810
0031947532846002810
No
Mohammad Javad
Mohammadi
Abadan School of Medical Sciences, Abadan, Iran
0031947532846002811
0031947532846002811
No
Mojtaba
Shegerd
Health Center of East, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
0031947532846002812
0031947532846002812
No
Shahram
Sadeghi
Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
0031947532846002813
0031947532846002813
No
Sedigheh
Saeedi
Sama Technical and Vocatinal College, Islamic Azad University, Izeh Branch, Izah, Iran
0031947532846002814
0031947532846002814
No
Hassan
Basiri
Department of Environmental Health Engineering, School of Health, Lorestan University of Medical Sciences, Lorestan, Iran
h.basiri29@gmail.com
0031947532846002815
0031947532846002815
Yes
en
Optimizing electrocoagulation and electro-Fenton process for
treating car wash wastewater
Background: Car wash wastewater contains several contaminants such as organic matter, oil, grease, detergents and phosphates, all of which are harmful for the environment. In this study, the application of electrocoagulation (EC) to treat car wash wastewater has been studied, and the operating parameters optimized. The electro-Fenton (EF) for further contaminant removal was also investigated.
Methods: In EC process, the effect of pH, current density, and the reaction time of the removal efficiency of chemical oxygen demand (COD), phosphate, and turbidity were investigated using the response surface methodology (RSM). The electrochemical cell consisted of four iron electrodes that were connected to a power supply using a monopolar arrangement. In the EF process, the effect of pH, reaction time, and hydrogen peroxide concentration on COD removal efficiency were probed.
Results: The optimum pH, current density, and the reaction time for the EC process were 7.3, 4.2 mA cm-2 and 20.3 minutes, respectively. Under these conditions, the COD, phosphate, and turbidity removal percentages were 80.8%, 94.9% and 85.5%, respectively, and the specific energy consumption was 1.5 kWh m-3. For the EF process, the optimum pH, reaction time, current and hydrogen peroxide dosage were 3, 10 minutes, 2 A and 500 mg L-1, respectively. The EF showed higher COD removal efficiency (85.6%) with a lower specific energy consumption (0.5 kWh m-3) and reaction time compared to the EC.
Conclusion: This study shows that both EC and EF can effectively treat car wash wastewater with high removal efficiency within a short reaction time.
Electrocoagulation (EC), Electro-Fenton (EF), Response surface methodology (RSM), Car
wash waste water
37
43
http://ehemj.com/browse.php?a_code=A-10-93-9&slc_lang=en&sid=1
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/28
1395/12/10
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/28
1395/12/10
Seyyedali
Mirshahghassemi
Center for Environmental Nanoscience and Risk (CENR), Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29208, United States
0031947532846002816
0031947532846002816
No
Behnoush
Aminzadeh
Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, Iran
bamin@ut.ac.ir
0031947532846002817
0031947532846002817
Yes
Ali
Torabian
Department of Environmental Engineering, Graduate Faculty of Environment, University of Tehran, Iran
0031947532846002818
0031947532846002818
No
Kamelia
Afshinnia
Center for Environmental Nanoscience and Risk (CENR), Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29208, United States
0031947532846002819
0031947532846002819
No
en
Investigation of chemical characteristics and spatiotemporal quantitative changes of dust fall using GIS and RS technologies;
a case study, Yazd city, central plateau of Iran
Background: The phenomenon of dust is a serious environmental problem in dry and semi dry regions. It has a destructive effect for the residents of such regions. Over two-thirds of Iran is in areas of dry and semi-dry climate conditions.
Methods: In this research, dust fall measurements were taken in 41 stations across Yazd city using a marble dust collector (MDCO) located in different parts of the city. Next, the chemical characteristics of dust were determined using the XRF method. Finally, levels of dust fall across the 4 seasons of the year and status of the constituent elements of dust were determined through ArcGIS software and the Kriging technique. The Raster calculator function was used to make determinations of the effects of dust fall at each of the stations over the course of the year. Remote sensing system, along with maps taken from Landsat and the band combination technique were processed using ENVI software to extract vegetation density and building density maps of the studied region.
Results: Results showed that spring had the highest level of dust fall with a value of 200 g/cm2. In total, in 109 km2 of the studied region had average dust fall of 110 g/m2 that contributed to 12 057 tons of dust over Yazd city in 2015. The constituent elements of the dust fall according to decreasing amounts were as follows: Si>Ca>Al>C>Mg>Fe>K>Na>S>Ti>Cl>P>Mn>Sr>Zn.
Conclusion: These results indicate accuracy of the Kriging technique for application in dust zoning. The factors of vegetation and green space were determined as effective on adsorbing dust. Increased building density and height of buildings also contributed to development of dust fall.
ArcGIS, ENVI, Remote sensing, Air pollution, Dust fall, Zoning
45
53
http://ehemj.com/browse.php?a_code=A-10-93-11&slc_lang=en&sid=1
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/282017/03/12
1395/12/22
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/282017/03/12
1395/12/22
Hamid Reza
Azimzadeh
Department of Environmental Science, School of Natural Resources & Desert Studies, Yazd University, Yazd, Iran
0031947532846002820
0031947532846002820
No
Reza Ali
Fallahzadeh
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
0031947532846002821
0031947532846002821
No
Mohammad Taghi
Ghaneian
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
mtghaneian@yahoo.com
0031947532846002822
0031947532846002822
Yes
Seyed Ali
Almodaresi
Department of GIS & RS, Engineering College, Islamic Azad University, Yazd Branch, Yazd, Iran
0031947532846002823
0031947532846002823
No
Hadi
Eslami
Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
0031947532846002824
0031947532846002824
No
Mahmoud
Taghavi
Department of Environmental Health Engineering, Gonabad University of Medical Sciences, Gonabad, Iran�.A
0031947532846002825
0031947532846002825
No
en
Simple method for extracting gold from electrical and electronic wastes using hydrometallurgical process
Background: This research studied the feasibility of a simple method for extracting gold from central processing units (CPUs) of computer circuit boards without solvent.
Methods: Ceramic and composite CPUs of computer circuit boards were used. Gold was extracted using a hydrometallurgical method in six stages: grinding of CPUs, leaching in nitric acid, leaching in aqua regia, removing the excess nitric acid, extracting the gold, washing and purifying the gold deposits. Measurements of extracted precious metals were carried out by inductively coupled plasma (ICP).
Results: The results indicated that mean concentrations of gold in the first and second stages of leaching were 0.138 and 31.16 mg/L, respectively. Following the washing stage, the concentration of gold in the final deposit was 25 mg/L. The purity rate of the final deposit was 83.9%, and the final gold recovery yielded 82.3%.
Conclusion: The results of this study indicated there is a potential for extracting a high percentage of precious metals from e-wastes without solvent.
E-waste, Gold extraction, Hydrometallurgical method
55
58
http://ehemj.com/browse.php?a_code=A-10-1-73&slc_lang=en&sid=1
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/282017/03/122017/03/5
1395/12/15
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/282017/03/122017/03/5
1395/12/15
Mohammad Aali
Dehchenari
Student Research Committe, Islamic Azad University of Majlesi, Isfahan, Iran
0031947532846002826
0031947532846002826
No
Saeed
Hosseinpoor
Young Researchers and Elite Club, Majlesi Branch, Islamic Azad University, Isfahan, Iran
0031947532846002827
0031947532846002827
No
Rahim
Aali
Department of Environmental Health Engineering, Faculty of Nursing and Health, Urmia University of Medical Sciences, Urmia, Iran
Aali@hlth.mui.ac.ir
0031947532846002828
0031947532846002828
Yes
Nilowfar
Salighehdar
Department of Health Education and Health Promotion, Tehran University of Medical Sciences, Tehran, Iran
0031947532846002829
0031947532846002829
No
Mohsen
Mehdipour
Environmental Health Engineering and Member of Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
0031947532846002830
0031947532846002830
No
fa
Quantitative and qualitative characteristics of hospital waste in the city of Behshahr-2016
Background: Recently, the rapid increase in quantity and type of waste has resulted to environmental pollution and health hazards which serve as a major challenge to humans. The level of this waste can be so high that dangerous chemicals and biological contaminants can be found in ordinary household waste. Major sources of waste in every city are mostly from care/health centers. Hence, this study aims to investigate the quantitative and qualitative waste taken from hospitals in the city.
Methods: In this cross-sectional study, four city hospitals were examined in the city. For this purpose, a questionnaire was designed for quantitative analysis method and weighing scales based on the Ministry of Health questionnaire. Data were analyzed using SPSS software and for statistical analyses, Excel and Graph Pad Prism 5 were used.
Results: According to findings, the total amount of hospital waste comprising infectious waste, sharp and pharmaceutical chemicals were related to Imam Khomeini hospital with values of 44 220 012 and 10 kg per day respectively, with 220 kg per day of general waste related to same hospital. Hence, the total weight of waste produced per capita, for infectious waste, general waste, chemical waste, and sharp - machinery were 2.35 ± 0.25, 0.39 ± 0.075, 1.25 ± 0.66, 0.05 ± 0.028 and 0.021 ± 0.015 kg per day per bed respectively.
Conclusion: The data should be more focused on waste management and frequent orientation to hospitalized patients. This evaluation indicates the poor management of hospital wastes in view of collection, separation, infectious waste care, temporary storage station and on-time transmission and health disposal.
Hospital, Medical, Infectious, Solid wastes, Characteristics, Behshahr, Iran
59
64
http://ehemj.com/browse.php?a_code=A-10-93-14&slc_lang=en&sid=1
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/282017/03/122017/03/52017/03/17
1395/12/27
2017/03/172017/02/252017/02/282017/03/52017/03/172017/02/282017/03/122017/03/52017/03/17
1395/12/27
Zabihollah
Yousefi
Department of Environmental Health, Health Faculty, Mazandaran University of Medical Sciences, Sari, Iran
zyousefi2004@gmail.com
0031947532846002831
0031947532846002831
Yes
Mitra
Avak Rostami
Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran
0031947532846002832
0031947532846002832
No