Day 2 :
Keynote Forum
Hossein Ganjidoust
Tarbiat Modares University, Iran
Keynote: Key Parameters Optimization in the electro-coagulation-flotation process for synthetic wastewater treatment Containing Acid Red 14
Time : 10:30-11:00
Biography:
Hossein Ganjidoust completed his PhD in 1988 from University of Missouri-Rolla, USA He is the Professor of Civil & Environmental Engineering at Tarbiat Modares University, Iran. Hernhas published more than 105 papers in reputed journals and books and has been serving as an Editorial Board Member on several journals. He has undertaken research and acted asrnhigh level consultant in various Industries and Companies.
Abstract:
Due to the potential contamination of groundwater and surface water in the vicinity of the consumer dye industry, removal of this dyestuffrnwaste is an environmental priority. Water clarity and solubility of gases in the presence of even a small amount of dye is reduced. If there arerncolored substances toxic to lower layers light penetration in the water is low and photosynthesis of aquatic plants and the amount of dissolvedrnoxygen is so low that aquatic animals destroyed. Dyes are stable compounds that are not easily biodegradable and especially azo dyes arernconsidered carcinogenic. Removal of color via various methods of physical, chemical, biological or a combination of them is possible that can bernnoted on physical methods such as adsorption, membrane filtration and ultrasonic waves, chemical methods such as ion exchange, electrolysis,rncoagulation and flocculation, canonical and advanced oxidation and biological methods using algae, fungi and bacteria. Chemical coagulation isrna common method of waste water containing dye. High levels of dissolved solids and sludge in purified effluent is the disadvantage of chemicalrncoagulation. In recent years, electrochemical method because of the versatility and compatibility with the environment as an effective methodrnfor treating wastewater of containing dye industries is taken into consideration. In the electric coagulation, production happens in place ofrncoagulant materials that are result of dissolution metal anode (steel) by passing an electric current. If between the positive anode and negativerncathode that are plugged to electricity, put sewage, an electric field is established as a result of the electrical conductivity of the solution. Byrnelectrolysis of water, tiny bubbles of oxygen and hydrogen produced, and to move upwards and form a blanket on the surface. Bubbles bringrnsuspended particles to the surface and form sludge layer that are mechanically collected. Expected use of electric flotation process simultaneouslyrnwith electric coagulation eliminates requirement to gravity sedimentation unit for the separation the clots and resulting in the separation of bothrnemissions and reduce the cost of the filtration. Researches in the field of electrochemical dye degradation based on electric coagulation andrnflotation property of the produced bubble is rarely used. In this study, reactors designed in a manner intended to electric coagulation propertiesrnand electric flotation can be used simultaneously. In addition, in this study are used innovations such as the use of grille stainless steel electrodesrnwith horizontal arrangement. In this study, the important factors affecting the performance of the synchronized electric conclusion and electricrnflotation system at the; Including electrical conductivity of the solution and initial pH were completed checked out and the effect of thesernparameters on the removal efficiency of acid red 14 from synthetic wastewater, and energy consumption values and anode are determined andrnoptimized. The electrical conductivity 3600 μS/dm and initial pH equal 9 were selected as optimal values and under optimal conditions andrnthe duration of 25 minutes, 99% removal efficiency of dye with initial concentration 250 mg/L is reached and specific energy consumption†9.5rnkWh/kg Dye Removedâ€, anode consumption “2.65 Fe /kg Dye Removed†and TSS sludge 9000 mg/L was obtained.. Advantages of this methodrninclude very low consumption of Materials and energy (according to the high rated initial concentration of the dye (250 mg/L) and a smallrnapplied intensity electric current (0.4 A) in this study) as well as low produced sludge that resulted to reduce filtration and sludge disposal costsrncan be noted. Require to simple equipment, high speed and short retention time remove pollutants, easy navigation, require to low amount ofrnchemicals and low produced sludge which has high sedimentation or floating rate with low amount of water are other advantages of this methodrncompared to other methods of dye removal. As a result, this method can be used as an suitable alternative for common filtration methods suchrnas chemical coagulation and flocculation or pre-filtration prior to supplementary filtration of industrial sewage containing dyes.
- Track 3: Computing in Civil Engineering Track 4: Sustainability in Civil Engineering Track 8: Hydraulics and Hydro-Power Engineering Track 9: Transportation Engineering Track 11: Land and Construction Surveying Track 12: Coastal Engineering and Management
Session Introduction
Robin Christian
Sardar Vallavbhai National Insitute of Technology, India
Title: A Study on Ground Water Quality A Case Study of Olpad and its surrounding villages in Gujarat
Biography:
Dr R A Christian is Associate Professsor in civil Engineering departmnet at S V National Institute of Techology, Surat. He has published more than 25 papers in reputed journals, and conferences. He is co-author of a book “Wastewater Treatment: Concepts and Design Approachâ€. His area of interest is Air pollution and control and biological treatment process.
Abstract:
In rural India people dependent on ground water sources for drinking water requirements. The quality of ground water varies considerably in Indian villages. The water is used directly without any treatment by the rural villagers. The present work is carried out to determine the ground water characteristics for villages located in Olpad area and its surroundings. Sixteen villages in Olpad region were identified to collect the water samples for its characterization. Ground water samples were collected from open wells and analyzed for physicochemical parameters like pH, electrical conductivity, total dissolved solids, total suspended solids, total hardness, calcium hardness, magnesium hardness, total alkalinity, chloride and sulphate. Sample were collected in winter as well as in summer season to study the seasonal variation. The study of the water quality revealed very high results for hardness and solids in this region which makes the water unfit for drinking water purpose.
Yongli Zhang
Wayne State University, USA
Title: Sustainability Decision Making for Integrated Renewable Bioenergy Generation and Water Management Systems
Biography:
Dr. Yongli Zhang is an Assistant Professor in the Department of Civil and Environmental Engineering at Wayne State University in Detroit, Michigan. Her teaching and research interests focus the sustainability of water-energy nexus. Water and energy are two critical resources inextricable and reciprocally linked: the generation of energy requires large amounts of water, while the treatment and distribution of water are dependent on reliable and low-cost energy. There are significant challenges in providing both clean, affordable water and energy. These challenges include: water and energy resource depletion, high environmental impacts associated with conventional fossil fuels, emerging contaminants in watersheds, etc. Dr. Zhang’s research group is interested in tackling these challenges by integrating bioenergy generation and water management for simultaneous production of bio-based energy and water quality improvement in an integrated, strategic manner via a combination of life cycle modeling and targeted laboratory experiments.
Abstract:
Environmental and economic health depends on a sustainable supply of both water and energy. These two critical resources are inextricable and reciprocally linked: the generation of energy requires large amounts of water, while the treatment and distribution of water are dependent on reliable and low-cost energy. There are significant challenges in providing both clean, affordable water and energy. These challenges include: water and energy resource depletion, high environmental impacts associated with conventional fossil fuels, emerging contaminants in watersheds, etc. A combination of life cycle modeling and targeted laboratory experiments is valuable for targeting these challenges in an integrated, strategic manner. This talk will present ongoing work related to assessing the feasibility and sustainability of integrated algae-based systems for simultaneous production of bio-based energy and wastewater treatment polishing. Results indicate that the integrated system will deliver both renewable bioenergy and enhanced water management, the latter via water quality improvement (i.e., the removal of aqueous nutrients comprising eutrophication potential and emerging contaminants) and water-supply mitigation (decreasing water demand of energy generation by wastewater recycling).
Irineu da Silva
University of São Paulo, Brazil
Title: Geomatics Applied for Civil Engineering - State of the Art
Biography:
Irineu da Silva is Associate Professor Doctor in Civil Engineering at Department of Transportation Engineering of the University of São Paulo - Brazil. He holds the title of PhD in Geodetic Sciences from the University of Lausanne - Switzerland. He is responsible for undergraduate and post-graduate courses of Geomatics for civil engineering, has published more than 80 papers in scientific congress and reputed journals and 2 scientific books in the area of Geomatics. He has been invited as keynote speaker in more than 20 scientific congress and seminars and has been serving as an editorial board member of reputed journals and scientific congress.
Abstract:
Geomatics can be defined as part of scientific knowledge, including the sciences, techniques and methods that deals with the measurement, mathematical modelling, geo-referencing, mapping and staking of spatial geometric elements of the Earth´s surface. Due to the multitude of applications, it is therefore a vital area of expertise in civil engineering, which must be understood and assimilated by civil engineers. Like all technical segments, Geomatics is also undergoing important technological advances over the years, incorporating new instruments, new technologies and new working methods. This is the case, for instance, of 3D data collection, geodetic structural monitoring and machine control, to name a few. In order to correctly apply these new tools, it is important that civil engineers know the most important details of each instrument, its technical resources and the level of accuracy that can be achieved with its use. In that sense, the proposed presentation aims to discuss the new technologies available in Geomatics and their applications in civil engineering projects and jobsites workflow. It will focus on the main technical features of topographic and geodetic instruments and its application, including Terrestrial Laser Scanners, LIDAR technology, Machine Control for earthmoving projects, UAVs and Geodetic Structural Monitoring, among others.
Patel N. N.
Sardar Vallavbhai National Insitute of Technology, India
Title: A Fuzzy Approach Towards Determination of Water Quality Index.
Biography:
Mr. Patel N. N. have more than 25 years of teaching and industrial experience in the field of environmental engineering. He also have a good command over Fuzzy logic system appraoch towards environmental monitoring systems (EMS). More than 20 publications are there at national as well as international level on various Fuzzy based approach. Author 2 is the research scholars working on Fuzzy Multi Criteria Decision Making approach towards environmental monitoring systems.
Abstract:
River plays a very vital role in social, cultural and economical development of any region. It has been seen that establishment of population starts from river side. The developments ultimately results to generate large amount of waste. The river is one of the acceptors to discharge any kind of waste; and hence gets polluted.These practices may result in increased contaminations in river water. The rivers flowing are getting polluted due to humans activities, industries. The water quality generally defined as its fitness for the beneficial uses for drinking by people & animals, for support of aquatic life, irrigation of land and for recreation This process starts from surveys and systematic study of river basins, characterization of contaminants, analyzing water parameters and finalizing action plan etc. Characterization of river water includes determination of temperature, Total Dissolved Solids (TDS), Suspended Solids (SS), Biological and Chemical Oxygen Demand (BOD and COD), Oil and Grease, pH and Chlorides etc. According to collected database it is essential to set stations in river stretch for the purpose of intake structures, treated wastewater discharge points, bathing points, fishing points etc. As no of parameters influence the site selection process it is difficult to justify the suitability if site. A water quality index provides a single number (like a grade) that expresses overall water quality at a certain location and time based on several water quality parameters. The objective of an index is to turn complex water quality data into information that is understandable and useable by the public. Fuzzy logic has based on fuzzy set theory. It is a complex mathematical method that allows solving difficult simulated problems with many inputs and output variables. In Environmental Engineering it is difficult to judge the severity of pollution by layman. A present paper focus on the determination of river water quality index by using Fuzzy Logic systems to identify the site suitability for various utilities.
Biography:
I have been working as an Assistant Professor in Department of civil Engineering, UVPCE, Ganpat University, Kherva –Mehsana since, June 2012. I have completed Master of Engineering in Transportation Engineering at L. D. College of Engineering, Ahmedabad, Gujarat, India in 2012. I am willing to attend this conference because it is very much related to my specialized subjects, like Basic Transportation System, Transportation Engineering, Highway Engineering and Traffic Engineering. I am guiding students at undergraduate level in their projects related of said subjects. I have already provided guidance to more than fifty students in their projects like Inland Waterway Transportation, Road safety audit, Traffic management system by various methods, Feasibility study on Pedestrian and many more. I have published 08 research papers in various conferences/ journals and also attended the conferences in India. Ganpat University has awarded the certificate for Contributing Significant work for the college on date 14th March 2015.
Abstract:
The study intended to address the major issues faced by the community of farmers, identify the Smart Village indicators and put forward a strategic plan for the Smart Village implementation. The study data was collected through a survey, focus group interviews and documents. The quantitative and qualitative analysis of the data revealed that the major issues faced by the farmers in this agriculture community are limited involvement of human resources in agricultural activities, small land holding and limited knowledge of using technologies and innovative techniques to enhance the agricultural production and processing. Other issues are relevant to Micro Small Medium Entrepreneurs (SMMEs) include lack of raw materials and crops, lack of machinery, limited knowledge and lack of guidance and exposure to networking on how to ensure mass production and healthy marketing competition at the regional and global levels. Thus, the study emphasizes the importance of meeting the community‘s needs and offers several useful recommendations. Rural development implies both the economic betterment of people as well as greater social transformation. As per the need of the village in particular includes Physical infrastructure facilities (Water, Drainage, Road, Electricity, Solid waste Management, Storm Water Network, Telecommunication & Other), Social infrastructure facilities (Education, Health, Community Hall, Library, Recreation Facilities & other) and renewable energy (Rain water harvesting, Biogas plant, Solar Street lights & Other) for Sustainable development which can help in developing villages in sustainable manner, reduce migration from villages and prevent the cities from the urban pressure. In conclusion, by incorporating the concept of ―Smart Village, the current study considers the potential Smart Village as an innovative means of improving rural people‘s life and it introduces a strategic implementation of the Smart Village project in three phases; I. Social empowerment, II. Developing the Smart Village infrastructure and III. Economic empowerment.
T R Subash, Abhilash Urs K R, Ananth M, Manoj Kumar S A
L&T Construction, India
Title: Pre-grouting for Leakage Control and Rock Improvement
Biography:
T R Subash has completed his postgraduate in Geotechnical Engineering from College of Engineering, Guindy, Chennai by the year 1994. He is currently Chief Engineering Manager at Heavy civil infrastructure segment at L&T Construction, India. He is having more than 22 years of experience in design and construction of infrastructure projects. His domain of expertise encompasses Tunnel & Underground Engineering, Structural Engineering, Dam and Hydro power Engineering. He is a chartered engineer at Institution of Civil Engineers (U.K). He is also an active member of Indian Society of Hydraulics and Indian Geotechnical Society.
Abstract:
In underground construction, ground water inflow and rock mass stability has been a challenging problem. Especially the tunnels constructed below ground water table are often exposed to risk of ground water inflow. Protection of underground structures against water ingress is of paramount importance during construction as well as operation of the tunnel. Waterproofing measures such as sheet membrane and sprayed applied membrane are used in current practice to restrict the water ingress into the tunnel. In majority of cases, these waterproofing systems have had partial success to stop the water ingress, as they are adopted without due consideration to the rock mass around the excavation. Thus, reduction of rock mass permeability by means of pragmatic measures such as pre-grouting can restrict the water ingress to acceptable levels. The primary purpose of pre-grouting is to improve the rock mass strength and establish an impervious zone around the tunnel periphery, thus leading to reduced support system and permeability of rock mass. The aim of this article is to focus on the importance of pre-grouting as an effective waterproofing method whilst discussing the various nuances of the pre-grouting with respect to rock mass improvement.
Rajdeep Srivastava, Ayush Agrawal
RV College of Engineering, India
Title: Current analysis of concrete
Biography:
Rajdeep Srivastava is persuing his undergraduate degree in Civil Engineering 2012-2016. Has recieved job offer from TATA CONSULTING ENGINEERS, A reputed consulting firm in Civil engineering industry. The author has succesfully presented a paper on Direct Current Analysis of concrete in The National Conference for Emerging Trends in Engineering science and management(NCESM-2016).
Abstract:
In this growing need and the run for sustainability, The increase in demand for better and safe housing has increased many folds. We live in an era were the construction industry is changing its phase from a labour and skill intensive industry to a more automated industry with greater sophistication. However this alarming rate of construction is a also accompained by structural faults and failures, which needs to be curbed in order to ensure hazard mitigation. Along with the aesthetical characteristics the life span of a building is very important which depends on a number of factors like the strength of the building material, duarability of concrete etc. Since electrical properties play an important role in monitoring structural health. In this paper for the purpose of Structural Health Monitoring, the properties of concrete has been studied with varying paramters. The study for the bulk electrical properties was carried out using the 2-point probe method for both alternating and direct current source. And the semi-conductor properties of concrete have been further studied as a probable combination of resistances and capacitances. It was found that conductivity of concrete decreases with aging. M40 grade of concrete showed higher conductivity when compared to M20 owing to better pore refining. 20 mm downsize aggregates showed higher conductivity compared to 12mm downsized aggregates. And as expected cured concrete blocks showed greater conductivity compared to uncured block. Peak Current analysis showed there was a constant drop from the maximum current passing through all the samples. Samples have been further studied for their conductivity in various samples under loading. All the results have been presented in the form of I-V charts. This study is further extended to studying crack propagation or stress zones in the sample using solid work as a tool.
Emuriat Julius Emmanuel
Addis Ababa University School of Technology, Ethiopia
Title: Parametric study on Analysis and Design of permanently anchored secant pile wall for earth quake loading
Biography:
Due to space limitations in urban areas, deep excavation in to the ground has become a common practice worldwide. Deep excavations are supported by conventional retaining walls, sheet pile walls, braced walls, diaphragm walls and secant pile walls. An advantage of secant pile wall compared with other excavation supporting systems is that they are the most economical methods of creating an effective water control barriers for building structural walls. The load distribution behind a retaining structure depends on the method of excavation and the resulting deflection of the wall. Secondary factors such as construction activities, static and dynamic loads, variation of ground water level can affect the performance of the anchors. In regions that experience strong ground motions due to earthquakes, secant walls often suffer severe damage and sometimes total failure. This damage demonstrates the need for seismic design of the permanently anchored secant pile wall. A complete plaxis 3D finite element simulation was carried out to show the effects of modeling. This model show the series of parametric analysis of the secant pile walls. The design procedure was subjected to stimulated earthquakes using PLAXIS finite element analyses. The response of the secant wall to real earthquake records was analyzed including deformations; wall bending moments, shear forces, the stability analysis of the wall to evaluate the depth of penetration etc. Detailed design methodology of the secant pile excavation supporting system is furnished in the research study and gives analytic parameters of secant pile excavation supporting system subject to seismic action.
Abstract:
Emuriat has completed his Bachelor of Building& Civil Engineering from Kyambogo University in Uganda and currently graduate student doing research for Masters studies from Addis Ababa University School Technology, Ethiopia . He is the director of Jet limitd, a Civil Engineering Company. He has published no paper but he is looking forward to and he has excellent professional knowledge in Civil Engineering.He has attended course programmes for UEGCL on dam training and Hydrology organized by Manitoba Hydro International in Association with Nippon Koei UK International Consulting Engineers