Journal of Water Science & Engineering: 4 (2)

Open Access Article

1 - Reinforcement process of household water purification filter with plant nanoparticles
محبوبه شادابی بجند مهداد انکاری

The use of nano as a reducing agent for drinking water pollutants has been proposed as one of the management strategies. One of the cases of this technology is related to the quality of drinking water. Therefore, the purpose of this study is to use plant nanoparticles ( More

The use of nano as a reducing agent for drinking water pollutants has been proposed as one of the management strategies. One of the cases of this technology is related to the quality of drinking water. Therefore, the purpose of this study is to use plant nanoparticles (aloe vera plant) to strengthen the filter of household water purifiers made of polypropylene fibers. During the analysis obtained on aloe vera plant as a filter enhancer, the results showed that the parameters related to the household water purification filter, which is reinforced in terms of mass and thickness of polypropylene fibers and the amount of bubble pressure, orifice diameter and the average diameter of the hole has the appropriate thickness and internal indicators. Also, the values of quality parameters (nitrate, nitrite, sulfate, chloride, fluoride, sodium, potassium, hardness, EC, TDS and turbidity) after leaving the water treatment plant with plant nanoparticles have significantly reduced the quality of water entering the water treatment plant. Examining the effectiveness of this filter enhanced with aloe vera plant, it was found that this filter has a good power in removing the physical and chemical parameters of water that can be used in the treatment of polluted water used in household and drinking processes Manuscript profile

Open Access Article

2 - Evaluation of Khorramshahr wastewater treatment plant using neural and artificial networks and support vector machine and the possibility of using it for agricultural purposes
علی ایران فر علیرضا نیکبخت شهبازی رضا جلیل زاده ینگجه

In this research, neural and artificial network and support vector machine have been used to evaluate the wastewater of Khorramshahr treatment plant. Also, the possibility of using the city's sewage for agricultural purposes was investigated. In this study, the monthly More

In this research, neural and artificial network and support vector machine have been used to evaluate the wastewater of Khorramshahr treatment plant. Also, the possibility of using the city's sewage for agricultural purposes was investigated. In this study, the monthly values of BOD, COD, TS and TSS that were required in this study were used and also these values were used to evaluate the wastewater of Khorramshahr treatment plant for use in agriculture. The application of artificial neural network model is also possible to predict the quality of effluent from wastewater treatment plants. The selected ANN (LM) model had good accuracy in estimating BOD5. However, this model had poorer performance in predicting maximum values. Using a two-stage network search optimization algorithm, the optimal values of the characteristics of the SVM model, namely ɛ, C and γ, were obtained as 0.037, 13 and 1.472, respectively. Finally, according to the results obtained in this study, the SVM model was recommended for BOD5 time prediction for Khorramshahr refinery. According to the results obtained from the qualitative analysis of treated wastewater, effluent from BOD5 removal is equal to 88%, COD is equal to 92%, TDS is equal to 70% and TSS removal is equal to 27%. Khorramshahr wastewater treatment plant effluent salinity was measured with a minimum salinity of 208, maximum 3050 and an average of 1544 micromoles per centimeter. Therefore, the effluent of the city's wastewater treatment plant is in group C3, acceptable water. Based on the amount of sodium in the effluent of the treatment plant for irrigation of wheat, barley, soybeans, figs, olives, poplar and the like, according to the Wilcox diagram, there are no restrictions on the use of this effluent. Manuscript profile

Open Access Article

3 - Effect of low irrigation regimes and silica nanoparticles on yield and water productivity index of lettuce (Baby lettuce Vivian)
شکور طافی عبدالرحیم هوشمند ناصر عالم زاده انصاری

Population growth and increasing environmental problems have greatly increased the demand for irrigation water from parts of the world. Nanotechnology enables the products of sustainable agricultural products to be able to reduce the environment and provide the conditio More

Population growth and increasing environmental problems have greatly increased the demand for irrigation water from parts of the world. Nanotechnology enables the products of sustainable agricultural products to be able to reduce the environment and provide the conditions for the production of new products. The aim of this study was to investigate the performance and utilization of water consumption under low irrigation regimes and silica nanoparticles. The present study was performed on lettuce plant (Vivian lettuce baby dance) in three water levels (75, 85 and 100 required for water plant) and three applied nanoparticle levels including 0, 50 and 100 mg/l as root feeding performed in three replications. This design was completed in the form of shredded strip cards with a basic block design. According to the results, the highest total yield parameter was recorded in I100F100 treatment equal to 87.88g / plant and the lowest amount was recorded in I85F50 treatment with 47g / plant, respectively. Also, the highest biomass yield was recorded in I100F50 treatment which was equal to 61.33 g / plant and the lowest biomass yield was reported in I75F100 treatment which was equal to 26 g / plant. I100F50 treatment with 20.53 kg / m3 had the highest water consumption efficiency. The highest and lowest harvest indices in this study were 74.68 and 52.61%, respectively. Manuscript profile

Open Access Article

4 - Effect of consumption and efficiency of irrigation networks on hydropower generation in Karun basin
حمیدرضا ماجدی حسین فتحیان علیرضا نیکبخت شهبازی نرگس ظهرابی

In this research, integrated modeling of Great Karun basin was carried out under multipurpose scenarios using six reservoir dams with a capacity of 10500 MW (Megawatt) to reduce the greenhouse gas productions. The simulation and development of the integrated WEAP model More

In this research, integrated modeling of Great Karun basin was carried out under multipurpose scenarios using six reservoir dams with a capacity of 10500 MW (Megawatt) to reduce the greenhouse gas productions. The simulation and development of the integrated WEAP model within a fifty-year period along with the development of the MODFLOW model in alluvial deposits that interact with the river allowed for the analysis of the integrated water resources management system of the Great Karun basin. Several scenarios were implemented following the calibration and validation of the linked integrated model. The components covered by these scenarios included the satisfaction of the in-basin and off-basin demands, the effect of the integrated consumption of water resources, and the effect of increased efficiency of irrigation networks with maximum clean hydroelectricity production and minimum aquifer level decline under drought-induced water shortage conditions. The second scenario, which generates 15282 GWh (Gigawatt-Hour) of power, not only optimally needs the future and environmental demands as the best operating scenario but also minimizes the emission of the greenhouse gases in the basin Manuscript profile

Open Access Article

5 - Assessing the Water Resources Crisis of Mehran plain by Comparing and Analyzing Meteorological and Hydrological Drought Parameters
علی عباسی نیا جعفر مرشدی منیژه ظهوریان جبرئیل قربانیان

Lack of water and lack of proper management of available water resources creates a water crisis that is exacerbated by droughts and has various environmental, social and economic dimensions. The purpose of this study is to analyze and compare meteorological drought and More

Lack of water and lack of proper management of available water resources creates a water crisis that is exacerbated by droughts and has various environmental, social and economic dimensions. The purpose of this study is to analyze and compare meteorological drought and groundwater of Mehran plain using standardized precipitation index (SPI) and groundwater index (GRI) to assess the water resources crisis. In order to study the meteorological drought, monthly rainfall information of Mehran synoptic station was used and in order to study the drought of groundwater in Mehran plain, groundwater level changes in Mehran plain were analyzed based on water level data of 23 observation wells. Also, SPI index was used to monitor meteorological drought and GRI index was used to monitor hydrological drought in Mehran plain. The statistical period required for drought analysis was a 25-year statistical period from the water year of 75-74 to 97-96. After determining the moisture periods of the indices, monthly groundwater zoning maps were prepared. To prepare these maps, the kriging model was selected from among different models. Finally, by applying the optimal half-change model in kriging and entering groundwater data as a point layer, raster maps were prepared using Arc GIS software. The results of the SPI index show that during a period of statistics, 4 periods of severe drought occurred, the most severe of which was the 90-91 water year, with a value of SPI of -1.73. Also, the results obtained from the GRI index in the region show that an 11-year period of groundwater drought occurred, ie it started from the water year of 88-87 and continued until the water year of 98-97, the most severe of which was 90-91 with an index value of -1.11. Manuscript profile

Open Access Article

6 - Providing practical solutions to reduce water consumption in Mashhad
وحید یزدانی الهام یاری هادی نجف زاده سمانه توکلی امینیان سپیده یکه باش

Population growth and redistribution and changing production and consumption patterns are two factors that define the vulnerability of an area, economic sector or population group to water resources. The present study offers suggestions for reducing water consumption ac More

Population growth and redistribution and changing production and consumption patterns are two factors that define the vulnerability of an area, economic sector or population group to water resources. The present study offers suggestions for reducing water consumption according to Mashhad conditions and its effectiveness is presented. Also the necessary conditions for achieving a lasting coalition are provided based on game theory. Results show it is possible to prevent the loss of about 35 to 52 million cubic meters per year by repairing worn-out water supply lines. However, this solution requires extensive planning, costly and time consuming process. If it is possible to replace treated water with treated wastewater in 10 to 20% of urban consumption, it is finally possible to store about 17.5 to 35 million cubic meters of drinking water per year. The mentioned solutions such as educational and cultural solutions to reduce water consumption in the home sector are short-term and relatively less costly solutions if these solutions lead to a reduction in consumption on average. In the household sector, by 15 to 20 percent, we will eventually save 21 to 28 MCM per year in municipal water consumption. Currently, only 20% of the water needed in green space is supplied from drinking water sources, which is about four million cubic meters per year. Therefore, by replacing this amount with non-drinking water, it can store 4 million cubic meters of drinking water annually. If solutions are found to reduce consumption in the industrial and commercial sectors and lead to a 10 to 20 percent reduction in water consumption in these two sectors, it will ultimately lead to savings of 1.5 to 3 MCM Water will be in the year. Manuscript profile

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