Pub Date : 2023-03-18DOI: 10.18502/jehsd.v8i1.12325
Suad Al Fatlawi, Mustafa Al-Alwani
Introduction: To improve current practices and create the most effective healthcare waste treatment system, solid medical waste composition needs to be analyzed. This study aims to develop models to predict the rate of medical waste production in hospitals in Hilla city, Iraq. Predictive mode can be used to set standards, evaluate current methods for treating and disposing medical waste, and optimize healthcare solid waste management systems. Materials and Methods: Predictive models and long-term data on the composition and rate of solid medical waste generation were developed using a longitudinal study design. A standardized questionnaire and weighted scale were used to measure solid medical waste generated from the five public hospitals. Statistics were used to create models predicting the amount of waste generated at each hospital. Results: These models demonstrated a significant correlation between inpatient and outpatient numbers and waste generation. Different hospitals treat different numbers of inpatients and outpatients. Different models have been created based on various types of hospitals. Conclusion: Linear rule-based models accurately represent the weights of variables, identify the sources and implications of solid medical waste, and control waste levels by using a variety of parameters. The research model can help in the development of an effective strategic plan for setting up a medical solid waste (MSW) management system.
{"title":"A Model for Predicting Medical Solid Waste in Hilla City, Iraq","authors":"Suad Al Fatlawi, Mustafa Al-Alwani","doi":"10.18502/jehsd.v8i1.12325","DOIUrl":"https://doi.org/10.18502/jehsd.v8i1.12325","url":null,"abstract":"Introduction: To improve current practices and create the most effective healthcare waste treatment system, solid medical waste composition needs to be analyzed. This study aims to develop models to predict the rate of medical waste production in hospitals in Hilla city, Iraq. Predictive mode can be used to set standards, evaluate current methods for treating and disposing medical waste, and optimize healthcare solid waste management systems. \u0000Materials and Methods: Predictive models and long-term data on the composition and rate of solid medical waste generation were developed using a longitudinal study design. A standardized questionnaire and weighted scale were used to measure solid medical waste generated from the five public hospitals. Statistics were used to create models predicting the amount of waste generated at each hospital. \u0000Results: These models demonstrated a significant correlation between inpatient and outpatient numbers and waste generation. Different hospitals treat different numbers of inpatients and outpatients. Different models have been created based on various types of hospitals. \u0000Conclusion: Linear rule-based models accurately represent the weights of variables, identify the sources and implications of solid medical waste, and control waste levels by using a variety of parameters. The research model can help in the development of an effective strategic plan for setting up a medical solid waste (MSW) management system.","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42087033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-18DOI: 10.18502/jehsd.v8i1.12324
Mohammad Kahnooji, Maryam Karimifar, M. Azin, H. Ahmadnia, Seyed Ahmad Razavi, Ali Mohammad Madahian, H. Eslami
Introduction: Chronic exposure to Arsenic (As) can increase the risk of diabetes mellitus. This study aims to determine the relationship between exposure to the As by drinking water and the prevalence of diabetes mellitus in two urban populations of Rafsanjan and Kashkuyeh, Iran, in 2020. Materials and Methods: In this research, 120 participants from Rafsanjan and Kashkuyeh were recruited and divided into four groups. The first two groups have lived in Rafsanjan and Kashkuyeh for the past 10 years, and the second two groups have lived in these two cities for less than a year. Individuals with two episodes of fasting blood glucose (FBG) ≥ 126 mg/dl were considered to have diabetes. Results: As was found in high levels in all samples (10 samples) in Rafsanjan and 55% of samples (10 samples) in Kashkuyeh. The prevalence of diabetes was significantly higher in people with a residence duration of more than 10 years (p = 0.038). The analysis of Multiple Logistic Regression model demonstrated that the chance of developing diabetes in people who had lived in either city for more than 10 years was almost 5.7 times higher than others (OR = 5.79; P = 0.003). Also, the chance of developing diabetes was 91% higher in people who had lived in Rafsanjan compared with Kashkuyeh, and 91% higher in men than in women (OR = 1.915; P = 0.215). Conclusion: Chronic exposure (≥ 10 years) to high levels of As by drinking water can increase the risk of diabetes, and future research is needed in this regard.
{"title":"The Relationship between Exposure to Arsenic in Drinking Water and the Prevalence of Diabetes Mellitus in Two Urban Populations in the Southeastern Areas of Iran","authors":"Mohammad Kahnooji, Maryam Karimifar, M. Azin, H. Ahmadnia, Seyed Ahmad Razavi, Ali Mohammad Madahian, H. Eslami","doi":"10.18502/jehsd.v8i1.12324","DOIUrl":"https://doi.org/10.18502/jehsd.v8i1.12324","url":null,"abstract":"Introduction: Chronic exposure to Arsenic (As) can increase the risk of diabetes mellitus. This study aims to determine the relationship between exposure to the As by drinking water and the prevalence of diabetes mellitus in two urban populations of Rafsanjan and Kashkuyeh, Iran, in 2020. \u0000Materials and Methods: In this research, 120 participants from Rafsanjan and Kashkuyeh were recruited and divided into four groups. The first two groups have lived in Rafsanjan and Kashkuyeh for the past 10 years, and the second two groups have lived in these two cities for less than a year. Individuals with two episodes of fasting blood glucose (FBG) ≥ 126 mg/dl were considered to have diabetes. \u0000Results: As was found in high levels in all samples (10 samples) in Rafsanjan and 55% of samples (10 samples) in Kashkuyeh. The prevalence of diabetes was significantly higher in people with a residence duration of more than 10 years (p = 0.038). The analysis of Multiple Logistic Regression model demonstrated that the chance of developing diabetes in people who had lived in either city for more than 10 years was almost 5.7 times higher than others (OR = 5.79; P = 0.003). Also, the chance of developing diabetes was 91% higher in people who had lived in Rafsanjan compared with Kashkuyeh, and 91% higher in men than in women (OR = 1.915; P = 0.215). \u0000Conclusion: Chronic exposure (≥ 10 years) to high levels of As by drinking water can increase the risk of diabetes, and future research is needed in this regard. \u0000 ","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41746701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-18DOI: 10.18502/jehsd.v8i1.12326
K. Jahangiri, A. Fatehpanah
Introduction: Drought is a slow-onset natural disasters and a gradual concern. Throughout the centuries, Iranians have applied various methods to preserve water resources and adjust themselves to the drought. This study was conducted with the aim of preserving water resources by households during a drought with the approach of indigenous knowledge. Material and Methods: The study was carried out from April 2017 to June 2018. A qualitative content analysis method was used to obtain insight into personal experiences. A purposive sampling method was used to select 15 participants. The research population consisted of native villagers who lived in rural areas near the three main plains of Yazd province (Yazd-Ardakan plain, Abarkouh plain, and Herat Va Marvast plain). Thematic analysis was used to analyze the data. Results: The components related to indigenous knowledge were placed in 4 categories and 15 sub-categories. The main categories were personal hygiene, conservation of scarce resources, prediction of drought, and classification of water in terms of quality and its supply sources. Conclusion: Indigenous knowledge reflects several generations of experience. This knowledge is a valuable resource about how local communities interact with their ever-changing environments. We must pay attention to personal health behaviors and how our ancestors used and preserved scarce resources. It is necessary to identify and correct these behaviors and support them through proper management and financial resources at the community level. To preserve water resources in droughts, it is essential to use appropriate management and policy-making and motivational methods, and educate families.
{"title":"Management of Water Resources and Health Promotion in Drought: An Indigenous Knowledge-Based Qualitative Study","authors":"K. Jahangiri, A. Fatehpanah","doi":"10.18502/jehsd.v8i1.12326","DOIUrl":"https://doi.org/10.18502/jehsd.v8i1.12326","url":null,"abstract":"Introduction: Drought is a slow-onset natural disasters and a gradual concern. Throughout the centuries, Iranians have applied various methods to preserve water resources and adjust themselves to the drought. This study was conducted with the aim of preserving water resources by households during a drought with the approach of indigenous knowledge. \u0000Material and Methods: The study was carried out from April 2017 to June 2018. A qualitative content analysis method was used to obtain insight into personal experiences. A purposive sampling method was used to select 15 participants. The research population consisted of native villagers who lived in rural areas near the three main plains of Yazd province (Yazd-Ardakan plain, Abarkouh plain, and Herat Va Marvast plain). Thematic analysis was used to analyze the data. \u0000Results: The components related to indigenous knowledge were placed in 4 categories and 15 sub-categories. The main categories were personal hygiene, conservation of scarce resources, prediction of drought, and classification of water in terms of quality and its supply sources. \u0000Conclusion: Indigenous knowledge reflects several generations of experience. This knowledge is a valuable resource about how local communities interact with their ever-changing environments. We must pay attention to personal health behaviors and how our ancestors used and preserved scarce resources. It is necessary to identify and correct these behaviors and support them through proper management and financial resources at the community level. To preserve water resources in droughts, it is essential to use appropriate management and policy-making and motivational methods, and educate families.","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48426155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-17DOI: 10.18502/jehsd.v8i1.12319
A. Yari, Y. Ghafuri, R. Aali
Introduction: The present study aims to evaluate adverse health effects caused by the use of wastewater for the irrigation of fields in Qom province, Iran. Materials and Methods: An environmental monitoring program was designed for 3 pathogens-Escherichia coli, Vibrio cholerae, and E. coli O157 and carried out on 120 samples from raw wastewater, effluent, and irrigated products with wastewater. In the next phase, exposure assessment and microbial risk assessment were performed using a questionnaire and interviewing 200 participants. Results: Concentrations of E. coli, V. Cholerae, and E. coli O157:H7 in raw wastewater were determined to be 3.4 × 103 ± 500 cfu/100ml, 2.1 × 103 ± 100 cfu/100ml, and 312 cfu/100ml, respectively. Concentrations of E. coli, V. Cholerae, and E. coli O157:H7 in effluent were determined to be 2.1 × 103 ± 100 cfu/100ml, 0.8 × 103 ± 100 cfu/100ml, and 176 cfu/100ml, respectively. The conventional wastewater treatment system was effective in removing E. coli, V. Cholerae, and E. coli O157: H7 by 50%, 59%, and 43%, respectively. Crops irrigated with effluent contained 400 ± 250 cfu/100ml, 0.1 × 103 ± 0.019 cfu/100ml, and 52 cfu/100ml of E. coli, V. Cholerae, and E. coli O157:H7, respectively. According to the exposure scenarios, the total annual probability of infection in the studied population for E. coli, V. Cholerae, and E. coli O157:H7 was determined to be 8 × 10-2, 8 × 10-4, and 17 × 10-2, respectively. Conclusions: In irrigating agricultural crops with wastewater implementing wastewater safety plans (WWSP) is crucial.
{"title":"Quantitative Microbial Risk Assessment of Urban Wastewater Pertaining to Irrigation of Agricultural Products in Qom, Iran, in 2020","authors":"A. Yari, Y. Ghafuri, R. Aali","doi":"10.18502/jehsd.v8i1.12319","DOIUrl":"https://doi.org/10.18502/jehsd.v8i1.12319","url":null,"abstract":"Introduction: The present study aims to evaluate adverse health effects caused by the use of wastewater for the irrigation of fields in Qom province, Iran. \u0000Materials and Methods: An environmental monitoring program was designed for 3 pathogens-Escherichia coli, Vibrio cholerae, and E. coli O157 and carried out on 120 samples from raw wastewater, effluent, and irrigated products with wastewater. In the next phase, exposure assessment and microbial risk assessment were performed using a questionnaire and interviewing 200 participants. \u0000Results: Concentrations of E. coli, V. Cholerae, and E. coli O157:H7 in raw wastewater were determined to be 3.4 × 103 ± 500 cfu/100ml, 2.1 × 103 ± 100 cfu/100ml, and 312 cfu/100ml, respectively. Concentrations of E. coli, V. Cholerae, and E. coli O157:H7 in effluent were determined to be 2.1 × 103 ± 100 cfu/100ml, 0.8 × 103 ± 100 cfu/100ml, and 176 cfu/100ml, respectively. The conventional wastewater treatment system was effective in removing E. coli, V. Cholerae, and E. coli O157: H7 by 50%, 59%, and 43%, respectively. Crops irrigated with effluent contained 400 ± 250 cfu/100ml, 0.1 × 103 ± 0.019 cfu/100ml, and 52 cfu/100ml of E. coli, V. Cholerae, and E. coli O157:H7, respectively. According to the exposure scenarios, the total annual probability of infection in the studied population for E. coli, V. Cholerae, and E. coli O157:H7 was determined to be 8 × 10-2, 8 × 10-4, and 17 × 10-2, respectively. \u0000Conclusions: In irrigating agricultural crops with wastewater implementing wastewater safety plans (WWSP) is crucial.","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45383811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-17DOI: 10.18502/jehsd.v8i1.12317
Saeid Ahmadzadeh, M. Dolatabadi, Roya Malekahmadi, A. Rasooli
The Article Abstract is not available.
文章摘要不可用。
{"title":"Quantum Dots and Their Application in Water and Wastewater Treatment","authors":"Saeid Ahmadzadeh, M. Dolatabadi, Roya Malekahmadi, A. Rasooli","doi":"10.18502/jehsd.v8i1.12317","DOIUrl":"https://doi.org/10.18502/jehsd.v8i1.12317","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000The Article Abstract is not available. \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000 \u0000","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45657595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-17DOI: 10.18502/jehsd.v8i1.12320
Kehinde Adekunle Bashiru, T. Ojurongbe, O. Fadipe, Joshua Okeke, Habeeb Abiodun Afolabi, N. Adeboye, I.A. Akanni
Introduction: The probability of contamination is frequently elevated in scenarios where a well and pit latrine coexist, or in situations where heavy rain causes the overflow of open excreta dumps, which in turn flush into wells and surface water. Many possible negative health effects might arise from exposure to various ecological and biological agents in the environment. Therefore, there is a need to examine the risk of disease transmission in Ife North Local Government Area (LGA) of Osun state, using epidemiological, environmental, and ecological factors. Materials and Methods: Geostatistical analysis was used to examine the epidemiological risk, based on various environmental, biological, and ecological variables. The technique employed demonstrated the complexity and multiple parameters that raise the probability of an epidemic. The Shapiro-Wilk test was used to determine whether or not the data were normally distributed. Fuzzy logic, correlation, and spline surface interpolation analysis were conducted using ArcGIS 10.3 and ENVI 5.0 software. Three levels of epidemic risk were used to construct the disease surveillance and projection maps. Results: According to the final susceptibility map, 8.08 km2 of 460.12 km2 of the research area were considered to be at very low risk for an epidemic, followed by 364.98km2 of low risk and 87.06km2 of moderate risk areas, with percentages of 1.75%, 79.32%, and 18.92%, respectively. Conclusion: A very substantial correlation was observed between biological and ecological components and water-borne diseases. It is, therefore, advised that all water sources be treated before consumption, and community involvement be encouraged in environmental sanitation programs.
{"title":"A Geo-Statistical Analysis of the Impact of Ecological and Environmental Risks on Epidemiology in the South-west, Nigeria","authors":"Kehinde Adekunle Bashiru, T. Ojurongbe, O. Fadipe, Joshua Okeke, Habeeb Abiodun Afolabi, N. Adeboye, I.A. Akanni","doi":"10.18502/jehsd.v8i1.12320","DOIUrl":"https://doi.org/10.18502/jehsd.v8i1.12320","url":null,"abstract":"Introduction: The probability of contamination is frequently elevated in scenarios where a well and pit latrine coexist, or in situations where heavy rain causes the overflow of open excreta dumps, which in turn flush into wells and surface water. Many possible negative health effects might arise from exposure to various ecological and biological agents in the environment. Therefore, there is a need to examine the risk of disease transmission in Ife North Local Government Area (LGA) of Osun state, using epidemiological, environmental, and ecological factors. \u0000Materials and Methods: Geostatistical analysis was used to examine the epidemiological risk, based on various environmental, biological, and ecological variables. The technique employed demonstrated the complexity and multiple parameters that raise the probability of an epidemic. The Shapiro-Wilk test was used to determine whether or not the data were normally distributed. Fuzzy logic, correlation, and spline surface interpolation analysis were conducted using ArcGIS 10.3 and ENVI 5.0 software. Three levels of epidemic risk were used to construct the disease surveillance and projection maps. \u0000Results: According to the final susceptibility map, 8.08 km2 of 460.12 km2 of the research area were considered to be at very low risk for an epidemic, followed by 364.98km2 of low risk and 87.06km2 of moderate risk areas, with percentages of 1.75%, 79.32%, and 18.92%, respectively. \u0000Conclusion: A very substantial correlation was observed between biological and ecological components and water-borne diseases. It is, therefore, advised that all water sources be treated before consumption, and community involvement be encouraged in environmental sanitation programs.","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43713658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-24DOI: 10.18502/jehsd.v7i4.11433
F. Teimouri, M. Amin, M. Sadani, B. Bina, H. Khanahmad
Introduction: Xenobiotic contamination is a global concern. Nitroaromatic compounds enter the environment through ammunition, ordnance disposal, burning the outdoors, and leakage of ammunition. Thirty percent of explosives enter the environment without any change, which can cause pollution of soil, water, and health concerns. So, effective remediation of the contaminated area is necessary. Materials and Methods: Soil bioreactors consisted of plastic pans placed in larger pans. Explosives were analyzed using a High-Performance Liquid Chromatography (HPLC) system, Model 486 UV detector, and a Nova Pak C18 guard column. LC-MS detected intermediates on an RP18 analytical column equipped with a C18 guard column. Results: Rhamnolipid significantly affected 2,4,6-trinitrotoluene (TNT) and Pentaerythritol tetranitrate (PETN) biodegradation rates with the help of indigenous bioaugmentation. The mentioned condition was also effective on the maximum bacterial growth in various nitroaromatics (S0) concentrations, in which the top change occurred. The specific growth rate was foremost in a setup containing microbial inoculated and biosurfactant (0.19) responding to 800 mg/kg TNT and 150 mg/kg PETN. The maximum bacterial enumeration of sludge and biosurfactant were 4.8 × 108 and 4.1 × 108 CFU/g, respectively. The aerobic-anaerobic sequence could be able to produce less harmful metabolites. In an aerobic-anaerobic sequence process, using the anaerobic process could help complete the azo compounds degradation in the aerobic stage. Conclusion: Aerobic-anaerobic condition is suitable for bioremediation contaminated explosive sites and achieving complete mineralization. Generally, this proposed method is possible for in situ bioremediation.
{"title":"Comparison of Nitroaromatic Compounds Metabolites Types by Sequencing Performance of Anaerobic-Aerobic and Aerobic-Anaerobic Processes","authors":"F. Teimouri, M. Amin, M. Sadani, B. Bina, H. Khanahmad","doi":"10.18502/jehsd.v7i4.11433","DOIUrl":"https://doi.org/10.18502/jehsd.v7i4.11433","url":null,"abstract":"Introduction: Xenobiotic contamination is a global concern. Nitroaromatic compounds enter the environment through ammunition, ordnance disposal, burning the outdoors, and leakage of ammunition. Thirty percent of explosives enter the environment without any change, which can cause pollution of soil, water, and health concerns. So, effective remediation of the contaminated area is necessary. \u0000Materials and Methods: Soil bioreactors consisted of plastic pans placed in larger pans. Explosives were analyzed using a High-Performance Liquid Chromatography (HPLC) system, Model 486 UV detector, and a Nova Pak C18 guard column. LC-MS detected intermediates on an RP18 analytical column equipped with a C18 guard column. \u0000Results: Rhamnolipid significantly affected 2,4,6-trinitrotoluene (TNT) and Pentaerythritol tetranitrate (PETN) biodegradation rates with the help of indigenous bioaugmentation. The mentioned condition was also effective on the maximum bacterial growth in various nitroaromatics (S0) concentrations, in which the top change occurred. The specific growth rate was foremost in a setup containing microbial inoculated and biosurfactant (0.19) responding to 800 mg/kg TNT and 150 mg/kg PETN. The maximum bacterial enumeration of sludge and biosurfactant were 4.8 × 108 and 4.1 × 108 CFU/g, respectively. The aerobic-anaerobic sequence could be able to produce less harmful metabolites. In an aerobic-anaerobic sequence process, using the anaerobic process could help complete the azo compounds degradation in the aerobic stage. \u0000Conclusion: Aerobic-anaerobic condition is suitable for bioremediation contaminated explosive sites and achieving complete mineralization. Generally, this proposed method is possible for in situ bioremediation.","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45251198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-24DOI: 10.18502/jehsd.v7i4.11434
A. Ebrahimi, M. Ehrampoush, A. Rezaie, Shahriar Forghani, H. Karimi, M. Rezvani, Zahra Soltanian Zadeh, M. Jalili
Introduction: Wastewater contains a large number of pathogenic and non-pathogenic microorganisms that can become bioaerosols during the treatment processes in different units of the treatment plant, and pose a risk to workers and nearby residents. In this study, the release of bioaerosols from a wastewater treatment plant of Morche Khort Industrial Town was investigated. Materials and Methods: Sampling was actively performed according to EPA standard, in two seasons of spring and summer in 2018-2019, by an environmental sampling pump with a flow rate of 15 l/min and a single-stage impactor. The data were analyzed by SPSS software version 2020. Results: The study results showed that the mean number of bacteria in the aeration tank was significantly higher than other points. The mean number of fungi in the aeration pond with 144 CFU/m3 had the highest concentration, and no fungal bioaerosol was observed 500 m downstream. Regarding the emission of H2S, CH4, and VOC gases, the anaerobic tank had the highest emission of these gases. Conclusion: Wastewater treatment plants (WWTPs) with activated sludge treatment technology and an aeration system can lead to an increase in the concentration of bacterial and fungal aerosols around the units and in surrounding areas.
{"title":"Assessment of Seasonal Variation of Microbial Aerosol and Gaseous Emissions from Wastewater Treatment Plant of Morche Khort Industrial Town","authors":"A. Ebrahimi, M. Ehrampoush, A. Rezaie, Shahriar Forghani, H. Karimi, M. Rezvani, Zahra Soltanian Zadeh, M. Jalili","doi":"10.18502/jehsd.v7i4.11434","DOIUrl":"https://doi.org/10.18502/jehsd.v7i4.11434","url":null,"abstract":"Introduction: Wastewater contains a large number of pathogenic and non-pathogenic microorganisms that can become bioaerosols during the treatment processes in different units of the treatment plant, and pose a risk to workers and nearby residents. In this study, the release of bioaerosols from a wastewater treatment plant of Morche Khort Industrial Town was investigated. \u0000Materials and Methods: Sampling was actively performed according to EPA standard, in two seasons of spring and summer in 2018-2019, by an environmental sampling pump with a flow rate of 15 l/min and a single-stage impactor. The data were analyzed by SPSS software version 2020. \u0000Results: The study results showed that the mean number of bacteria in the aeration tank was significantly higher than other points. The mean number of fungi in the aeration pond with 144 CFU/m3 had the highest concentration, and no fungal bioaerosol was observed 500 m downstream. Regarding the emission of H2S, CH4, and VOC gases, the anaerobic tank had the highest emission of these gases. \u0000Conclusion: Wastewater treatment plants (WWTPs) with activated sludge treatment technology and an aeration system can lead to an increase in the concentration of bacterial and fungal aerosols around the units and in surrounding areas.","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44817056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-24DOI: 10.18502/jehsd.v7i4.11427
B. Hatami, Bibi Farideh Zarabi Safari
The Article Abstract is not available.
文章摘要不可用。
{"title":"Nanocatalysts: What Are the Different Types of Them in Biodiesel Production?","authors":"B. Hatami, Bibi Farideh Zarabi Safari","doi":"10.18502/jehsd.v7i4.11427","DOIUrl":"https://doi.org/10.18502/jehsd.v7i4.11427","url":null,"abstract":"The Article Abstract is not available.","PeriodicalId":53380,"journal":{"name":"Journal of Environmental Health and Sustainable Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43267668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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