Papers by Pezhman Taherei Ghazvinei

Soil erosion is undesirable natural event that causes land degradation and desertification. Ident... more Soil erosion is undesirable natural event that causes land degradation and desertification. Identify the erosion-prone areas is a major component of preventive measures. Recent landslide damages at different regions lead us to develop a model of the erosion susceptibility map using empirical method (RUSLE). A landslide-location map was established by interpreting satellite image. Field observation data was used to validate the intensity of soil erosion. Further, a correlation analysis was conducted to investigate the "Receiver Operating Characteristic" and frequency ratio. Results showed a satisfactory correlation between the prepared RUSLE-based soil erosion map and actual landslide distribution. The proposed model can effectively predict the landslide events in soil-erosion area. Such a reliable predictive model is an effective management facility for the regional landslide forecasting system. factors, which trigger such disasters. Information on disaster risk, which is reliable, accessible, timely and appropriately packaged, is a prerequisite to any disaster reduction effort. Water erosion is regarded as a major issue as it affects socially and economically. It causes damage to structures, agriculture, and human lives. Water erosion over time triggers surface-landslide by increasing slope at effected area (
The purpose of this study was to assess long-term impacts of climate and land use change on a cat... more The purpose of this study was to assess long-term impacts of climate and land use change on a catchment runoff and dam overtopping dam reliability. Long hydrological time series (30 years) from six rainfall stations and one stream flow stations were analysed. A methodology combining common statistical methods with hydrological modelling was adopted in order to distinguish between the effects of climate and land use change and to present probabilistic assessment of overtopping reliability of the selected earth-fill dam. It is important to ensure that extreme meteorologically induced flood rises do not exceed dam crest level. Considering climate change factor, intensityduration-frequency curves of the catchment were updated. In addition, in consistency HESSD
Sediment Transport, Bed Load, Suspended Load Total Load
Water Reuse for a Sustainable World Recycling of Treated Urban Wastewater
ejge.com
Peats soil which named after highly organic matter soil does not include any kind of minerals exc... more Peats soil which named after highly organic matter soil does not include any kind of minerals except mineral from clay content which may increase strength parameters of based peat. An overview of the principals of the electrokinetic bioremediation technique in peats is ...

Sustainability
The reuse of treated wastewater is attractive as a communal source of excess water source in wate... more The reuse of treated wastewater is attractive as a communal source of excess water source in water-scarce counties and nations. The expansion of the urban population and the increase in the coverage of water supply networks and sewage networks will raise the amount of municipal sewage. This can turn into a new-fangled water resource. In the current research, the new campus city was selected as the first case study to design a wastewater reuse and recycling system. Accordingly, one of the most important innovations in the proposed research is the unique applied dimensions, in addition to its first-time performance, and the application of the Geo-land method in wastewater recycling as the theoretical dimension of the design. Clustering the decentralized reuse of wastewater for urban areas showed that significant parts of residential areas are located in the first high priority group. Urban planners can consider the results in establishing a comprehensive plan to prioritize the decentr...

Summary of Design Recommendations
SpringerBriefs in Environmental Science, 2017
Domestic waste‒composition investigation into different solid waste‒generation sources shows that... more Domestic waste‒composition investigation into different solid waste‒generation sources shows that the largest amount of domestic waste is generated at dormitories and faculties. Managing and controlling domestic-waste generation at dormitories and cafeterias has a significant effect of reducing organic waste and could reduce half of the total domestic waste. According to the comparison of recyclable materials generated from different sources, the results show that the most important sources of recyclable materials generation are dormitories because they generate 40 % of these materials follows by faculties, with 27 % generation. Therefore, dormitories and faculties are two hot spots in terms of recyclable-materials generation that should be considered. Comparing materials collected at the source and those existing in disposable waste shows that the greatest part of recyclable materials generated are transferred for disposal and more than 25 % could not be collected more than 25 % at the source. Furthermore, 3.6 tons of compostable waste, 1.6 tons of recyclable materials, and 1.9 tons of usable waste for the anaerobic-digestion method are generated per day. According to the solid-waste composition, some solid waste‒management scenarios were suggested, and they were compared using LCA and AHP. Combining of the life-cycle analysis (LCA) and analytical hierarchy process (AHP) results in the cluster-analysis method illustrates that scenario 5—by integration of 20 % RDF, 40 % composting, 20 % anaerobic digestion, and 20 % recycling—is the most appropriate solid waste‒management system.
IOP Conference Series: Earth and Environmental Science, 2018
The scour induced by a propeller wash is experimentally in uniform and nonuniform sand. A series ... more The scour induced by a propeller wash is experimentally in uniform and nonuniform sand. A series of laboratory experiment with different experimental parameters was conducted in the current research. Moreover, the characteristics of scour hole were studied and compared including depth, length, and width between uniformly and non-uniformly distributed sand. Equations of predicting maximum scour depth, proposed by previous researchers, were evaluated using the current experimental data. Results revealed that there is a need to improve the study in propeller-induced seabed scour in non-uniform sand.
MATEC Web of Conferences, 2018
Marine current power is a significant energy resource which is yet to be exploited for efficient ... more Marine current power is a significant energy resource which is yet to be exploited for efficient energy production. Malaysia, being a tropical country is rich in renewable sources and tidal power is one of them. In Malaysia, Straits of Malacca is a potential site to establish a tidal current turbine. In the current study, the potential sites of the Straits of Malacca are discussed. A detailed review about the generator suitable for the Straits of Malacca with the associated challenges has also been discussed. Furthermore, the suitable solution for such challenges is proposed. The role of simulation in choosing an appropriate site and generator has also been reviewed. The focus of the study is to propose a generator suitable for the flow characteristics of the Straits of Malacca.

Application of TOPSIS and VIKOR improved versions in a multi criteria decision analysis to develop an optimized municipal solid waste management model
Journal of Environmental Management, 2016
Selecting a suitable Multi Criteria Decision Making (MCDM) method is a crucial stage to establish... more Selecting a suitable Multi Criteria Decision Making (MCDM) method is a crucial stage to establish a Solid Waste Management (SWM) system. Main objective of the current study is to demonstrate and evaluate a proposed method using Multiple Criteria Decision Making methods (MCDM). An improved version of Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) applied to obtain the best municipal solid waste management method by comparing and ranking the scenarios. Applying this method in order to rank treatment methods is introduced as one contribution of the study. Besides, Viekriterijumsko Kompromisno Rangiranje (VIKOR) compromise solution method applied for sensitivity analyses. The proposed method can assist urban decision makers in prioritizing and selecting an optimized Municipal Solid Waste (MSW) treatment system. Besides, a logical and systematic scientific method was proposed to guide an appropriate decision-making. A modified TOPSIS methodology as a superior to existing methods for first time was applied for MSW problems. Applying this method in order to rank treatment methods is introduced as one contribution of the study. Next, 11 scenarios of MSW treatment methods are defined and compared environmentally and economically based on the waste management conditions. Results show that integrating a sanitary landfill (18.1%), RDF (3.1%), composting (2%), anaerobic digestion (40.4%), and recycling (36.4%) was an optimized model of integrated waste management. An applied decision-making structure provides the opportunity for optimum decision-making. Therefore, the mix of recycling and anaerobic digestion and a sanitary landfill with Electricity Production (EP) are the preferred options for MSW management.

Geo-spatial Information Science, 2010
The current paper presents landslide hazard analysis around the Cameron area, Malaysia, using adv... more The current paper presents landslide hazard analysis around the Cameron area, Malaysia, using advanced artificial neural networks with the help of Geographic Information System (GIS) and remote sensing techniques. Landslide locations were determined in the study area by interpretation of aerial photographs and from field investigations. Topographical and geological data as well as satellite images were collected, processed, and constructed into a spatial database using GIS and image processing. Ten factors were selected for landslide hazard including: 1) factors related to topography as slope, aspect, and curvature; 2) factors related to geology as lithology and distance from lineament; 3) factors related to drainage as distance from drainage; and 4) factors extracted from TM satellite images as land cover and the vegetation index value. An advanced artificial neural network model has been used to analyze these factors in order to establish the landslide hazard map. The back-propagation training method has been used for the selection of the five different random training sites in order to calculate the factor's weight and then the landslide hazard indices were computed for each of the five hazard maps. Finally, the landslide hazard maps (five cases) were prepared using GIS tools. Results of the landslides hazard maps have been verified using landslide test locations that were not used during the training phase of the neural network. Our findings of verification results show an accuracy of 69%, 75%, 70%, 83% and 86% for training sites 1, 2, 3, 4 and 5 respectively. GIS data was used to efficiently analyze the large volume of data, and the artificial neural network proved to be an effective tool for landslide hazard analysis. The verification results showed sufficient agreement between the presumptive hazard map and the existing data on landslide areas.
Solid Waste–Management Framework
SpringerBriefs in Environmental Science, 2017
Whole solid wastes of the campus are divided into three categories: 60 % organic waste, 20 % recy... more Whole solid wastes of the campus are divided into three categories: 60 % organic waste, 20 % recyclable materials, and 20 % other waste. Of organic wastes, 20 % is compostable waste, which could be treated by a composting method in gardening and landscaping. Other organic wastes (40 %) are treated by an anaerobic digestion method. The produced fertilizer could be applied in gardening and landscaping on the campus. Other solid wastes are treated using the RDF method. Electricity generated from RDF and anaerobic digestion could be consumed inside the campus. Nonrecyclable, noncompostable, and noncombustible wastes (<1 %) are taken outside of the campus for landfilling. Recyclable materials (20 %) would be sold to recycling centers to generate revenue.
Advanced Hydraulic 1 (Persian)
Sedimentation & Erosion Engineering - Section 01
Research Methodology - Ch. 2
Advanced Hydraulic-02(Persian)
Research Methodology - Ch. 3
Research Methodology - Ch. 7
Research Methodology - Ch. 4

Physical Modeling to Improve the Safe Foundation Designing of the Urban Integral Abutment Bridge
Municipal organizations in cooperation with local water companies try to create a continuous flow... more Municipal organizations in cooperation with local water companies try to create a continuous flow in the urban rivers to beautify the urban landscape in correlation with the eco-tourism aspects. Re-shaping the rivers’ floodplains by converting them to the landscapes, residential, complex centers has reduced the width of the rivers. This reduction the river width, increased flood intensity, greatly. Therefore, gradually weakening of the bridge foundations and high flow intensity, increase the probability of bridge failures. Bridge failure has significant effects on both the social and economic aspects of a region, and the stability of a bridge structure is closely associated with scour. Accurate prediction of the maximum depth of potential scour at a bridge foundation is important for the safe design of bridge footings. Experience has shown that insufficient attention is paid to contraction scour at Integral Abutment Bridges (IAB). Although most damage to bridges structure occur at the flooding times, undermining the bridges’ foundations in a relatively long duration of time make the bridge foundation weak for the final failure at the flash flooding conditions. The current paper experimentally investigated a full-scale IAB model to estimate the clear-water contraction scour on protruding abutments in the compound channel. The tests were run to find the relationship between maximum contraction scour depth and abutment protrusion into the main-channel. The results of the validation and graphical analysis yield satisfactory predictions. Findings of the current study can help determine the footing design and depth that could minimize both construction and maintenance costs.
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Papers by Pezhman Taherei Ghazvinei