نتایج جستجو برای: reduction of pollutant
تعداد نتایج: 21188769 فیلتر نتایج به سال:
This paper presents a detailed analysis of underwater electrical discharge parameters in the treatment chromium (VI) used as model pollutant to analyze reduction process by plasma liquid interaction (PLI). Pin-to-pin microsecond discharges were performed an aqueous Cr(VI) solution and processes characterized using measurements, optical imaging UV-Vis absorption measurements for [Cr(VI)] estimat...
Control of nitric oxides (NOx) is one of the key elements in designing combustion systems because of the important role on ozone layer destruction and smog formation. Because of the sensitivity of thermal NO mechanism to temperature, a practical and scientific method for thermal NO reduction is decreasing the flame temperature. Dilution is one way to reduce maximum temperature in the combustion...
a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...
Introduction: Biofiltration of volatile organic compounds is a biological method in which air containing contaminant is passed through a packed bed and the pollutant is transferred from gas phase to biofilm where it is degraded by microorganisms. Degrading microbial activity is strongly influenced by moisture content of bed so that it is considered as the most important factor for controlling o...
Some relationships between economic development and pollutant discharge have been found to be represented by inverted U-shaped curves, namely the environmental Kuznets curve (EKC), while S-shaped and N-shaped curves have also been found. There are several hard and soft measures to improve water quality in the rivers in Southeast Queensland. Socio-economic conditions related to river water envir...
Background and Aim: High concentrations of particulate matter-25 (PM2.5) have been the cause of the unhealthiest days in Tehran, Iran in recent years. This study was conducted with the aim of the spatio-temporal analysis of traffic volume and its relationship with PM2.5 pollutant concentrations in Tehran metropolis, Tehran during 2015-2018, using the Geographic Information System (GIS). Materi...
Cement manufacturing is one of the most energy intensive processes and is accountable for substantial pollutant emissions. Increasing energy costs compel stakeholders and researchers to search for alternative options to improve energy performance and reduce CO2 emissions. Alternative fuels offer a realistic solution towards the reduction of the usage of fossil fuels and the mitigation of pollut...
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