Electricity generation, desalination and microalgae cultivation in a biocathode-microbial desalination cell

, Article Journal of Environmental Chemical Engineering ; Volume 5, Issue 1 , 2017 , Pages 843-848 ; 22133437 (ISSN) Khazraee Zamanpour, M ; Kariminia, H. R ; Vosoughi, M ; Sharif University of Technology

Elsevier Ltd 2017

Abstract

Recently, microalgae has received a high attention for application in bioelectrochemical systems due to its potential to be used for oxygen generation and biodiesel production. In this study performance of algal biocathode in a microbial desalination cell (MDC) was evaluated against air cathode and biocathode microbial fuel cell (MFC). Effluent of a dairy wastewater treatment plant with COD of 1000 mg l-1 was utilized as substrate in the anode and the microalgae Chlorella vulgaris was inoculated in the cathode using a synthetic culture media. Experiments were conducted using two different saline water concentrations including 15 g l-1 (MDC-1) and 35 g l-1 (MDC-2) in a desalination cell and...

Experimental Study of Water Desalination and Electricity Generation by Algae

, M.Sc. Thesis Sharif University of Technology Khazraee Zamanpour, Morvarid (Author) ; Kariminia, Hamid Reza (Supervisor) ; Vosoughi, Manouchehr (Supervisor)

Abstract

Microbial Fuel cells (MFCs) can be used to generate bioenergy in the form of electricity by using microorganisms and natural biological processes. The need for a supply of fresh water in many parts of the world has led to the innovation of modifying an MFC into a Microbial Desalination Cell (MDC) that adds the function of desalination to the MFCs existing ability to generate electricity directly from wastewater. The goals of this project were to design and analyze the use of a Microbial Desalination Cell (MDC) for the generation of electricity while simultaneously desalinating saline water and also to evaluate performance of bio-cathode in MFCs and MDCs. The newly designed MDC incorporates...

Light Induced Curing of TiO2 Mesoporous Layer Utilized in Perovskite Solar Cells

, M.Sc. Thesis Sharif University of Technology Zamanpour, Fahimeh (Author) ; Taghavinia, Nima (Supervisor)

Abstract

The efficiencies of perovskite solar cells have increased rapidly in recent years and reached about 22%. Which hopes to make this type of solar cell more functional. In the normal structure of perovskite solar cells, the presence of mesoporous TiO2 mesoporous layer has increased sustainability and efficiency. To create this layer, a common method is placing the sample in a furnace for 30 minutes at 450°C-500°C. Using the furnace, in addition to being time consuming, has a high energy consumption. In this study, we tried to create a TiO2 mesoporous layer with the help of lighting. To create TiO2 mesoporous layer, What causes porosity in the layer is the removal of ethyl cellulose and create...

Phase-Field Modeling of Dendrite Growth in Lithium-Ion Batteries

, M.Sc. Thesis Sharif University of Technology Zamanpour Abyaneh, Parsa (Author) ; Tavakoli, Rouhollah (Supervisor)

Abstract

Lithium-ion batteries are widely used in portable electronics and electric vehicles due to their high energy density and low weight. However, one of the major challenges these batteries face is dendrite growth during charge and discharge cycles. Dendrites can cause internal short circuits, reduce battery performance, and in extreme cases, lead to battery failure or even explosions. This research focuses on studying the growth of dendrites using phase-field modeling. The phase-field approach allows for a detailed simulation of lithium deposition on electrodes, evaluating the impact of factors such as surface roughness, applied voltage, electrolyte conductivity, and electrode spacing on...

Fabrication of a Tactile Sensor Based on Triboelectric Nanogenerators

, Ph.D. Dissertation Sharif University of Technology Zamanpour, Fahimeh (Author) ; Mohammadpour, Raheleh (Supervisor) ; Sasanpour, Pezhman (Supervisor)

Abstract

Humans need the five senses to understand and interact constructively with their surrounding environment; in the world of robots and intelligent systems, this is achieved using sensors. In the modern world, tactile sensors based on triboelectric effect play a prominent role in important application areas such as health monitoring, human-computer interaction, robotics, pressure mapping, and electronic signature. Triboelectric nanogenerators (TENGs) are one type of energy harvesting systems that convert mechanical energy into electrical energy. In these sensors, due to the contact and touch with the triboelectric material, an electric charge is generated and induced into the electrode, then...

A novel hardware implementation for joint heart rate, respiration rate, and gait analysis applied to body area networks

, Article Proceedings - IEEE International Symposium on Circuits and Systems ; 2013 , Pages 1889-1892 ; 02714310 (ISSN) ; 9781467357609 (ISBN) Khazraee, M ; Zamani, A. R ; Hallajian, M ; Ehsani, S. P ; Moghaddam, H. A ; Parsafar, A ; Shabany, M ; Sharif University of Technology

2013

Abstract

Continuous and remote monitoring of vital health-related and physical activity signs of a patient is one of the most important technology-oriented applications to monitor the health-care of ill individuals. In this paper, an innovative framework for a wireless Body Area Network (BAN) system, based on the IEEE 802.15.6 standard, with three types of sensors is proposed and implemented. These include Electrocardiogram (ECG), Force Sensitive Resistor (FSR) and Gyroscope. The proposed design is a novel implementation of an embedded system for the real-time processing and analyzing of the ECG signal, gait phases, and detection of the respiration rate from the ECG signal, by means of small...