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Open Access Article
1 - Quantity and quality investigation of generated wastes at steel industries
Zahra Zamiraei علی ناهدRegarding to the variety of uses of steel in the world and widening its scope of application with the advancement of technology, steel production has changed to keep pace with advances in technology, following the changes; producers have tried to raise productivity and MoreRegarding to the variety of uses of steel in the world and widening its scope of application with the advancement of technology, steel production has changed to keep pace with advances in technology, following the changes; producers have tried to raise productivity and use of cheaper energy and fuels due to its geographical environment. There are the wastes in different stages of steelmaking (coke making, iron making and steelmaking). The generated wastes in this industry are with hazardous substances such as heavy metals, according to the classifications of the wastes, are classified as hazardous wastes. Therefore, identification and analysis and management of such waste in these industries are essential. The release of aforesaid hazardous wastes in nature can be had issues and problems for the environment and human health ultimately exceed the acceptable environmental conditions. The proper management of hazardous wastes in order to reduce and control pollution of the environment is utmost importance. Manuscript profile -
Open Access Article
2 - An Overview of Oil Pollution in the Caspian Sea
Hamoun Jalilzadeh mehran parsa mohammad reza golriz eram sadatiCrude oil is a mixture of pure compounds, from the chemical point of view, oil is a mixture of hundreds of molecular compounds called hydrocarbons. Therefore, in this article, various families of hydrocarbons are studied without going into organic chemistry. Then, oil h MoreCrude oil is a mixture of pure compounds, from the chemical point of view, oil is a mixture of hundreds of molecular compounds called hydrocarbons. Therefore, in this article, various families of hydrocarbons are studied without going into organic chemistry. Then, oil hydrocarbons and in particular PAHs, which are the main subject of this research, are being examined. Moreover, an overview of the information gathered about the effects and toxicity of these compounds. The presence of oil pollution in many years in the seas and coastlines of the world has made this topic very much to be considered. Many studies have been conducted to investigate these contaminations, some of which are mentioned in this article. Oil pollution studies related to the Caspian Sea are widely discussed in this paper. Manuscript profile -
Open Access Article
3 - Environmental review of the automotive industry and the ways to reduce its pollution
seyed sajad bidva Marzieh HasanzadehIn recent decades, with the rapid growth of urbanization and population growth in cities, the use of public transport and personal vehicles has been on the rise, which has many consequences such as greater dependence on the car, long travels, increased transportation co MoreIn recent decades, with the rapid growth of urbanization and population growth in cities, the use of public transport and personal vehicles has been on the rise, which has many consequences such as greater dependence on the car, long travels, increased transportation costs and most importantly, environmental hazards and air pollution. The Irregular use of cars leads to the loss of irreversible energy, the effects of greenhouse gas, and the dissatisfaction of townspeople of the high levels of noise and air pollution, resulting in a reduction in economic efficiency. In this regard, governments have set various rules and standards for reducing car pollution and the car makers are required to comply with them. These requirements have prompted carmakers to find ways to reduce the environmental pollution of their products and to create new technologies in this industry. Therefore, attention to environmental studies in the automotive industry is one of the most important factors. In this research, we investigate the types of pollution caused by automobile industry and practical ways to reduce these contaminations. Manuscript profile -
Open Access Article
4 - Cheese whey recycling, the right approach to prevent environmental damage
Zahra Katabehei Moradi Maryam Haghighi khomami Hamed Kioumarsi hooshang dehghanzadeh saeed tamadoni jahromiToday, with increasing in production and diversity expansion of dairy products in factories and production of whey products, this food product has become very important. Whey is a water-soluble part of milk that is obtained by adding acid, heating, and coagulating the c MoreToday, with increasing in production and diversity expansion of dairy products in factories and production of whey products, this food product has become very important. Whey is a water-soluble part of milk that is obtained by adding acid, heating, and coagulating the cheese. This yellow liquid contains a lot of lactose and mineral compounds such as calcium and phosphorus, which is important to achieve in order to use as a food source and prevent environmental pollution. Since the wastewaters of the dairy industry have the highest levels of contamination, if the untreated wastewaters of this industry are discharged, serious environmental problems will be inevitable. On the other hand, a reduction in existing reserves and environmental problems followed by increasing use of fossil fuels has prompted researchers to produce new sources of renewable energy, and it can be said that new biological technologies, such as the use of whey as a way to produce biofuels, reduces the environmental problems of dischrging this kind of wastewaters into nature. Today, using biological technology, these compounds can be used to produce biofuels such as hydrogen, methane, and ethanol. So far, various methods and tests have been performed to produce these fuel sources and in this study, the effective strategies for recycling whey and preventing environmental damages are investigated. Manuscript profile -
Open Access Article
5 - Environmental and Technical Assessment of Biogas Production using Rice Straw
Mahsa Khodabakhshi pour mohsenq mohammadi mohsen khodabakhshipourEnergy consumption is increasing rapidly in the world and it is expected that unrenewable energy sources will expire in the future; therefore, new methods of energy production are becoming more common all over the world. Biogas is one of the new and clean energies, whic MoreEnergy consumption is increasing rapidly in the world and it is expected that unrenewable energy sources will expire in the future; therefore, new methods of energy production are becoming more common all over the world. Biogas is one of the new and clean energies, which is produced from anaerobic fermentation of biomass. Guilan province with 238,000 hectares of paddy lands has significant potential for biogas production from organic residues. In this way, this study was carried out to investigate the process of biogas production from the combination of rice straw and animal waste with the ratios of (0-100), (5-95), (10-90), (15-85), (20-80) respectively in three repetitions. The experiment was performed at mesophilic temperature by anaerobic digestion method in the 1/5 lit bottles. An economic and environmental assessment for replacement of biogas produced in this process with fossil fuels was implemented in the village of Pounel in Guilan Province. The results showed that the ratio of 10% of rice straw had the highest biogas production efficiency and by replacing the biogas, 21 percent will save in fossil fuel consumption. It will also prevent the emission of 328.42 kg of CO2 gas into the atmosphere per year. Manuscript profile -
Open Access Article
6 - assessment of tropospheric NO2 changes in Kermanshah using OMI sensor and its relationship with meteorological parameters
Rasoul BagherabadiToday, the increase and development of urbanization, industrial activities and the consumption of fossil fuels have increased air pollution in large cities. One of the indicators of air pollution is nitrogen dioxide. In this paper, the trend of changes in the concentrat MoreToday, the increase and development of urbanization, industrial activities and the consumption of fossil fuels have increased air pollution in large cities. One of the indicators of air pollution is nitrogen dioxide. In this paper, the trend of changes in the concentration of nitrogen dioxide related to the troposphere in the city of Kermanshah in the period 2006 to 2018 is presented. In this study, the monthly concentrations of nitrogen dioxide obtained show that the highest amount of nitrogen dioxide occurs in winter and the lowest amount occurs in summer. As the highest amount of nitrogen dioxide occurs in January and the lowest amount occurs in June, meteorological conditions can increase the severity and extent of tropospheric nitrogen dioxide pollution. The results of tropospheric nitrogen dioxide concentration with meteorological parameters showed that the correlation coefficient of Pearson nitrogen dioxide with wind and surface temperature are inversely related, respectively. Reductions an OMI sensor was used to monitor nitrogen dioxide. In this study, nitrogen dioxide using an OMI sensor in February and July 2016 showed that the amount of nitrogen dioxide was higher in February and lower in July. Manuscript profile -
Open Access Article
7 - Removal of petroleum from contaminated water by affordable adsorbents
Zahra ZamiraeiPetroleum pollution has an important impact on marine plants and animals, coral islands, fishing, beaches, human health and tourism industry. Therefore, it is important to recycle or prevent leakage and to remove them from contaminated water. There are various ways to r MorePetroleum pollution has an important impact on marine plants and animals, coral islands, fishing, beaches, human health and tourism industry. Therefore, it is important to recycle or prevent leakage and to remove them from contaminated water. There are various ways to remove and recycle oil; including physical, mechanical, biological and photochemical methods, filtration and the most widely used way is absorption methods. The choice of an economically suitable hydrophobic absorber should be easy to handle, not expensive, and not be classified as hazardous. The adsorbent material can be organic or inorganic. Organic materials usually include plants, animals, or other high-carbon compounds (such as food waste, rice husk, macroalgae, algae, creatine, etc.). It is also possible to use organic compounds produced in industries such as petroleum and fertilizer industries. Inorganic compounds used as adsorbents are usually substances such as: soil, clay, mud, zeolite, minerals, metal oxides and hydroxides. Manuscript profile -
Open Access Article
8 - Investigation of environmental effects of rubber waste and proposed methods in the management of this type of wastes
علی ناهدRubber is one of the materials that are widely used in industry and when they expire, they fall into the category of hazardous wastes. The release of rubber wastes into the environment causes many problems, including diseases, their bad landscape in nature, and terrible MoreRubber is one of the materials that are widely used in industry and when they expire, they fall into the category of hazardous wastes. The release of rubber wastes into the environment causes many problems, including diseases, their bad landscape in nature, and terrible fires caused by their accumulation and environmental pollution. Also, rubber can be reused due to its non-degradability and elastic properties; as a result, the management of worn tires has a particular importance. There are several ways to manage rubber waste that can be safe and effective when done properly. These methods include sanitary landfilling, incineration, pyrolysis, milling, reuse at various scales, and re-coating. In this article, each method is reviewed and their advantages and disadvantages are stated. Also, there are examples of different applications of rubber waste in various industries. Manuscript profile -
Open Access Article
9 - Examining the amount of cadmium and lead in the soil downstream of Taybad landfill
akram ghorbani Mohammad ghafori Mohammad javad alipoorThe aim of this study was to investigate the emission of heavy metals (cadmium and lead) in the soil around Taybad landfill. For this purpose, 15 stations at a distance of 100 meters from each other to the landfill of Taybad city were selected for sampling. Sampling 5 s MoreThe aim of this study was to investigate the emission of heavy metals (cadmium and lead) in the soil around Taybad landfill. For this purpose, 15 stations at a distance of 100 meters from each other to the landfill of Taybad city were selected for sampling. Sampling 5 samples and repeating 3 times from each station, the samples were transferred to the laboratory for analysis to check the level of pollution indicators. Hypotheses were analyzed using one-sample t-test and Pearson's correlation coefficient with spss 24 software. It was found that the average total concentration of lead is equal to 52.04 and the average total concentration of cadmium is equal to 1.748. The concentration of the mentioned metals is significantly higher than the average global soil and earth's crust with 95% confidence. In the case of lead and cadmium, the highest contamination was in station 10 and 4, and the lowest contamination was in station 6 and 12, respectively. It is concluded that the amount of soil contamination does not change significantly with increasing distance, because the volume and concentration of contaminant runoff from the landfill (contaminant) along the path is constant. Therefore, it is better to provide environmental training for municipal municipal personnel and citizens of the region and to invest in the restoration of the environment and its further protection. Manuscript profile
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