Issue 4
Effect of flow and module configuration on SO2 absorption by using membrane contactors
Air Quality
Sulfur dioxide (SO2) emissions lead to negative environmental impacts and it is considered as an indicator for the larger group of gaseous sulfur oxides (SOx) in the air. In this paper, the dimethylamine (DMA) solution was used as the absorbent in a α-Al2O3 hollow fiber membrane contactor that is...
Assessment of residential exposure to Volatile Organic Compounds (VOCs) and Carbon Dioxide (CO2)
Air Quality
There is increasing concern about indoor air pollution worldwide due to its adverse health effects. One of the predominant indoor air pollutant groups is assumed to be volatile organic compounds (VOCs), including a variety of hydrocarbons with different functional groups. Among VOCs, some species...
Preliminary investigation on ultrasound frequency determination in TNT, RDX and HMX degradation
Water and Wastewater Treatment
The wastewater of the munitions industry varies in terms of the recalcitrant compounds depending on the products and the manufacturing process. The most commonly encountered energetic nitro-aromatic compounds in ammunition wastewater are trinitrotoluene (TNT), nitro-heterocyclic hexahydro...
Anaerobic two stage degradation pattern of fermentable components of municipal solid waste
Solid Waste Management
With increased contribution of household and kitchen wastes in overall MSW and its preferred conversion by biomethanation there is a need to study decomposition rates and kinetics, ‘leachate potential’ and related issues– especially to promote decentralized treatment. Anaerobic digestion...
Methylene Blue removal from aqueous solutions by activated carbon prepared from N. microphyllum (AC-NM): RSM analysis, isotherms and kinetic studies
Water and Wastewater Treatment
This study was conducted to remove Methylene Blue (MB) from aqueous solution using activated carbon prepared from N. microphyllum (AC-NM) as a new, cheap, and non-toxic. Design of experiments based on Response Surface Methodology (RSM) conducted to investigate the effect of variables namely; initial...
Potential causes of high performance of pure-oxygen aerobic granules in SBR under high organic loading condition
Water and Wastewater Treatment
Aerobic granules were cultivated using pure oxygen aeration (POAG) in SBR for wastewater treatment under high organic loading condition (HOLC) to reveal its performance and potential causes. Compared to conventional granules and activated sludge, mature POAG with more compact and dense structure...
Evaluvation of Paper recycling Wastewater Treatment Accompanied by power generation using Microbial Fuel Cell
Wastewater treatment
This study investigates the feasibility of using cathode catalyst (Iron phthalocyanine (FePc) combined multi walled carbon nano tubes (MWCNT) and compares the oxygen reduction rate under different conductivity of catholite solution (50 mM, 100mM) in double chamber Microbial Fuel Cell. Microbial fuel...
Identifying the Quiet Areas of a Small Urban Setting: The Case of Mytilene
General
The aim of this study is to achieve a greater insight regarding quiet areas in agglomerations and contribute to their identification. The small urban setting of Mytilene located in the island of Lesvos (North Aegean, Greece), was the case study of this research. Based on citizen contribution, a...
Effect of aerosols on different regime of clouds and their precipitation over Tehran city
Air Quality
In this study we investigate the impact of aerosols on different cloud regimes and amount of their precipitation over Tehran for the period of 2003-2014, utilizing data from Moderate-Resolution Imaging Spectroradiometer (MODIS), Tropical Rainfall Measuring Mission (TRMM) and surface data from local...
Evaluation of the potential genotoxic activity in seawater of Asin Bay, Gulf of Gulluk, Mugla, Aegean coast of Turkey
Hazardous Substances and Risk Analysis
This research examined the genotoxic activity in the seawater of Asin Bay (Gulf of Gulluk) located in Mugla, Turkey, Aegean coast of Turkey. Genotoxic activities of 66 raw samples, taken from 17 different stations in the spring and summer seasons of the year 2013, were determined by using in vitro...
Nitrogen removal by denitrification and annamox processes in freshwater rivers of high nitrogen loading region of China
Water Quality
The importance of anaerobic ammonium oxidation (anammox) – a metabolic pathway that can generate dinitrogen – remains poorly understood in freshwater river system. Using the 15N-isotope pairing technique (15N IPT) combined with membrane inlet mass spectrometry (MIMS), the potential rates of...
Kinetic study of inorganic carbon (IC) removal and COD removal from refinery wastewater by solar Photo-Fenton.
Wastewater treatment
This study evaluated the effectiveness of solar Photo-Fenton’s technique (H2O2/Fe2+/Solar) to treat the refinery wastewater. The experimental data were analyzed using the first and second-order kinetic models. The results clearly indicated that the pseudo-second-order models gave better prediction...
Investigation of the Diachronic Development of CO2 Emission Levels in Relation to Traffic Characteristics Along Major Road Axes During an Era of Recession: the Case of Greece
Air Quality
The problem of reducing CO2 emissions from transport, a major contributor to the greenhouse effect, has become a growing concern for the scientific community and various international committees monitoring climate change. Energy savings in the transport sector are a key factor towards rational...
The comparison of THMs and HAAs formation and speciation by chlorination and chloramination for different water sources
Water Resources Management
Disinfection by-products (DBPs) can be controlled by using alternative disinfectants to chlorine, removing DBPs precursors prior to chlorination and removing DBPs after formed. Chloramine is widely used as an alternative disinfectant to chlorine usage. In this study to evaluate trihalomethanes (THMs...
Recycling of three different types of rural wastes employing vermicomposting technology by Eisenia fetida at low temperature
Solid Waste Management
This study was conducted to investigate the recycling of rural wastes employing vermicomposting technology by Eisenia fetida. Three medium including kitchen waste, rotting foliage and cow dung were performed in 20 treatments. Results showed that in all 20 treatments the quality of produced compost...
Relationship between concentrations of heavy metals in children’s scalp hair and the environment. A case study from Kifissos River in Attica, Greece.
Environmental Sciences
In recent years children’s head hair is a biomarker frequently used for monitoring environmental exposure to heavy metals. Blood, plasma, urine and other tissues analysis were the most popular approaches to evaluate the concentrations of trace elements in human body. However, hair sample is easily...
Combination of low-pressure UF membranes with conventional water treatment systems
Water and Wastewater Treatment
The purpose of the study was to improve drinking water quality of conventional treatment processes by combining with UF-membrane systems. Performances of two membrane systems were evaluated in two different full-scale conventional water treatment plants in Istanbul. Low-pressure UF membranes were...
Ultrasound Assisted Enhanced Extraction of Lutein (β, ε-carotene-3, 3'-diol) from Mircroalga (Chlorella pyrenoidosa) Grown in Wastewater: Optimization through Response Surface Methodology
General
One of the fundamental carotenoid compounds available in microalga Chlorella pyrenoidosa is lutein, which is a commercially valuable antioxidant compound. The extraction of lutein from C. pyrenoidosa was studied in detail under various operating conditions. Acid pretreatment was done using 10% HCl...
Immobilisation and Leaching Performance of Lead-Acid Batteries Smelting Slag Using Natural and Waste Materials
Water and Wastewater Treatment
The slag generated in the rotary furnaces is classified hazardous waste. In this regard, landfill disposal of lead smelting slag is not feasible since a few hundred tons are produced per year; leaching of heavy metals into ground water is of concern. The release of heavy metals into the environment...
Historical and Temporal Trends of Climatic Parameters in North East India
General
Accessing temporal trend of different meteorological parameters is essential for understanding the local climate changing pattern of a region. Quantitative estimates of the effect of climate change helps in understanding, planning, and management of water resources systems. In this study, monthly...