Health impact assessment of air pollution in megacity of Tehran, Iran Tập 9 Số 1 - 2012
Kazem Naddafi, Mohammad Sadegh Hassanvand, Masud Yunesian, Fatemeh Momeniha, Ramin Nabizadeh, Sasan Faridi, Akbar Gholampour
Abstract
The aims of the present study were to provide quantitative data on the impact of air pollution on the health of people living in Tehran city, the most populated city of Iran. The approach proposed by the World Health Organization (WHO) was applied using the AirQ 2.2.3 software developed by the WHO European Centre for Environment and Health, Bilth...... hiện toàn bộ
Biodegradation of high concentrations of benzene vapors in a two phase partition stirred tank bioreactor - 2013
Ali Karimi, Farideh Golbabaei, Masoud Neghab, Mohammad Reza Pourmand, Ahmad Nikpey, Kazem Mohammad, Mohammad Reza Mehrnia
Abstract
The present study examined the biodegradation rate of benzene vapors in a two phase stirred tank bioreactor by a bacterial consortium obtained from wastewater of an oil industry refinery house. Initially, the ability of the microbial consortium for degrading benzene was evaluated before running the bioreactor. The gaseous samples from inlet and o...... hiện toàn bộ
Oxygen mass transfer in a stirred tank bioreactor using different impeller configurations for environmental purposes Tập 10 Số 1 - Trang 1-9 - 2013
Karimi, Ali, Golbabaei, Farideh, Mehrnia, Momammad Reza, Neghab, Masoud, Mohammad, Kazem, Nikpey, Ahmad, Pourmand, Mohammad Reza
In this study, a miniature stirred tank bioreactor was designed for treatment of waste gas containing benzene, toluene and xylene. Oxygen mass transfer characteristics for various twin and single-impeller systems were investigated for 6 configurations in a vessel with 10 cm of inner diameter and working volume of 1.77L. Three types of impellers, namely, Rushton turbine, Pitched 4blades and Pitched...... hiện toàn bộ
Application of iron nanaoparticles in landfill leachate treatment - case study: Hamadan landfill leachate Tập 9 Số 1 - Trang 1-5 - 2012
Kashitarash, Zahra Esfahani, Taghi, Samadi Mohammad, Kazem, Naddafi, Abbass, Afkhami, Alireza, Rahmani
This study was performed with the objective of determining the efficiency of iron nanoparticles for reducing chemical oxygen demand (COD), 5-day biological oxygen demand (BOD5), total solids (TS) and color of Hamadan city landfill leachate. Experiments were performed in a batch reactor and the main effective factors of pH, reaction time and concentration of iron nanoparticles were investigated. Th...... hiện toàn bộ
Effectiveness of photochemical and sonochemical processes in degradation of Basic Violet 16 (BV16) dye from aqueous solutions Tập 9 - Trang 1-7 - 2012
Zahra Rahmani, Majid Kermani, Mitra Gholami, Ahmad Jonidi Jafari, Niyaz Mohammad Mahmoodi
In this study, degradation of Basic Violet 16 (BV16) by ultraviolet radiation (UV), ultrasonic irradiation (US), UV/H2O2 and US/H2O2 processes was investigated in a laboratory-scale batch photoreactor equipped with a 55W immersed-type low-pressure mercury vapor lamp and a sonoreactor with high frequency (130kHz) plate type transducer at 100W of acoustic power. The effects of initial dye concentrat...... hiện toàn bộ
Đánh giá và so sánh đá nhẹ phủ nhôm và zeolit trong việc loại bỏ arsenic khỏi nguồn nước Dịch bởi AI Tập 9 - Trang 1-7 - 2012
Simin Nasseri, Masoumeh Heidari
Nghiên cứu này đã điều tra và so sánh khả năng loại bỏ arsenic, As (V) của đá nhẹ phủ nhôm và zeolit. Kính hiển vi điện tử quét (SEM), Phân tích tia X (XRD) và Quang phổ phát xạ tia X (XRF) đã được thực hiện để xác định tính chất của vật liệu hấp phụ. Nhiều thông số bao gồm liều lượng vật liệu hấp phụ, pH, thời gian tiếp xúc và nồng độ As(V) ban đầu đã được nghiên cứu. pH tối ưu đạt được cho cả ha...... hiện toàn bộ
#arsenic removal #aluminum-coated pumice #zeolite #adsorption #environmental remediation
Impact of leachate on groundwater pollution due to non-engineered municipal solid waste landfill sites of erode city, Tamil Nadu, India Tập 9 - Trang 1-12 - 2012
Rajkumar Nagarajan, Subramani Thirumalaisamy, Elango Lakshumanan
Leachate and groundwater samples were collected from Vendipalayam, Semur and Vairapalayam landfill sites in Erode city, Tamil Nadu, India, to study the possible impact of leachate percolation on groundwater quality. Concentrations of various physicochemical parameters including heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Fe and Zn) were determined in leachate samples and are reported. The concentrations...... hiện toàn bộ