scholarly journals Release of Harmful Air Pollutants from Open Burning of Domestic Municipal Solid Wastes in a Metropolitan Area of Korea

2013 ◽  
pp. 1365-1372 ◽  
Author(s):  
Young Koo Park ◽  
Wooram Kim ◽  
Young Min Jo
Keyword(s):  
Heavy Metals ◽  
Metropolitan Area ◽  
Air Pollutants ◽  
Hazardous Materials ◽  
Solid Wastes ◽  
Government Officials ◽  
Municipal Solid Wastes ◽  
Open Burning ◽  
The Public ◽  
Public Survey

Open burning of solid wastes, a potential nonpoint emission source, has recently become a topic of interests, particularly in the metropolitan area of Seoul, Korea. To estimate the effects of irregular open burning on local air quality, we evaluated the emission levels of harmful substances from test combustion of individual types of domestic municipal solid waste (MSW), including paper, wood, and plastics. The emission factors of PM10, PM2.5, PAHs, and heavy metals obtained from laboratory tests differed depending on the combustion material. A brief survey of residents and local government officials showed that more than 10.6% of homes in the metropolitan area have eliminated waste by irregular burning. Based on the public survey in the test area, the average annual emissions of hazardous materials from frequent open burning was estimated to be 71 tons for PM10, 46.6 tons for PM2.5, 914 kg for heavy metals, and 67 kg for PAHs. Open burning creates nearly 0.44% of regional air pollution from PM10.

Conditioning of oily sludges with municipal solid wastes incinerator fly ash

1997 ◽  
Vol 35 (8) ◽  
pp. 231-238 ◽  
Author(s):  
Tay Joo Hwa ◽  
S. Jeyaseelan
Keyword(s):  
Heavy Metals ◽  
Fly Ash ◽  
Specific Resistance ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Solid Wastes ◽  
Municipal Solid Wastes ◽  
Capillary Suction ◽  
Optimum Dosage

Conditioning of sludges improves dewatering characteristics and reduces the quantity of sludge to be handled. Anaerobic digested sludge collected from a sewage treatment plant contained 1.8% to 8% oil. The increase of specific resistance and capillary suction time (CST) with increasing oil content observed in these samples indicates the interference of oil in dewatering. It has been found that addition of municipal solid wastes incinerator fly ash decreases the specific resistances and capillary suction times of oily sludges rapidly up to 3% dosage. Beyond 3% fly ash, the decrease is less significant and the solids content in the sludge cake increases. This optimum dosage remains the same for sludges with varying oil contents from 1.8% to 12%. The total suspended solids of filtrate decreases with fly ash dosage but the toxic concentrations of heavy metals increases considerably. However at the optimum dosage of 3%, concentrations of heavy metals are within the limits for discharging into the sewers. The correlations of CST with the dewatering characteristics such as specific resistance, filter yield and corrected filter yield are established. These correlations can be used to obtain a quick prediction on dewaterability.

Ecotoxicological and Pre-remedial risk assessment of heavy metals in municipal solid wastes dumpsite impacted soil in Morocco

2022 ◽  
pp. 100640
Author(s):  
Hamza El Fadili ◽  
Mohammed Ben Ali ◽  
Noureddine Touach ◽  
Mohammed El Mahi ◽  
El Mostapha Lotfi
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Solid Wastes ◽  
Municipal Solid Wastes

scholarly journals Recycling of Waste Materials for Stabilizing Ash from Co-Combustion of Municipal Solid Wastes with an Olive By-Product: Soil Leaching Experiments

Soil Systems ◽  
2020 ◽  
Vol 4 (2) ◽  
pp. 34
Author(s):  
Despina Vamvuka ◽  
Stelios Alexandrakis ◽  
George Alevizos ◽  
Antonios Stratakis
Keyword(s):  
Heavy Metals ◽  
Fixed Bed ◽  
Major And Trace Elements ◽  
Solid Wastes ◽  
Waste Materials ◽  
The European Union ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
Municipal Solid Wastes ◽  
Lignite Fly Ash

In the context of the current environmental policies of the European Union promoting the recycling and reuse of waste materials, this work aimed at investigating the environmental impact of ashes produced from the co-combustion of municipal solid wastes with olive kernel in a fixed bed unit. Lignite fly ash, silica fume, wheat straw ash, meat and bone meal biochar, and mixtures of them were used as stabilizing ash materials. All solids were characterized by physical, chemical and mineralogical analyses. Column leaching tests of unstabilized and stabilized ash through a quarzitic soil were conducted, simulating field conditions. pH, electrical conductivity, chloride, sulphate and phosphate ions, major and trace elements in the leachates were measured. The results showed that alkaline compounds were partially dissolved in water extracts, increasing their pH and thus decreasing the leachability of heavy metals from the ash. Cr leached from unstabilized ash reached a hazardous level. Upon the stabilization of ash, the concentrations of heavy metals in the extracts were reduced between 9% and 100%, and were below legislation limits for disposal, apart from Cr. The latter was achieved only when meat and bone meal biochar was used as stabilizer. Entrapment of ash elements was assigned to the amorphous silica and to the phosphates of the stabilizing materials, as well as complexed silicates formed during the process.

Physico-Chemical properties, heavy metals and their relations in cultivated landfill soils dumped with municipal solid wastes

2003 ◽  
Vol 49 (2) ◽  
pp. 163-170 ◽  
Author(s):  
A Mitra ◽  
P Bhattacharyya ◽  
K Chakrabarti ◽  
DJ Chattopadhyay ◽  
A Chakraborty
Keyword(s):  
Heavy Metals ◽  
Chemical Properties ◽  
Solid Wastes ◽  
Municipal Solid Wastes ◽  
Physico Chemical

Ecotoxicological status and risk assessment of heavy metals in municipal solid wastes dumpsite impacted soil in Nigeria

2019 ◽  
Vol 11 ◽  
pp. 100215 ◽  
Author(s):  
Joseph P. Essien ◽  
Edu D. Inam ◽  
Donald I. Ikpe ◽  
Godwin E. Udofia ◽  
Nsikak U. Benson
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Solid Wastes ◽  
Municipal Solid Wastes

Analysis of Thermal Plasma-Assisted Waste-to-Energy Processes

2010 ◽  
Author(s):  
Caroline Ducharme ◽  
Nickolas Themelis
Keyword(s):  
Thermal Plasma ◽  
Hazardous Materials ◽  
Ceramic Coatings ◽  
Solid Wastes ◽  
Waste To Energy ◽  
Municipal Solid Wastes ◽  
Plasma Torches ◽  
The Earth ◽  
Energy Processes ◽  
Plasma Technologies

Thermal plasma torches convert electricity to high-temperature thermal energy by applying a high voltage across a flowing gas stream. Plasma torches are used extensively for producing metallic and ceramic coatings and also for vitrifying hazardous materials, such as asbestos-contaminated wastes. In the last decade, several thermal plasma processes have been proposed for treating municipal solid wastes (MSW). This research is based on a critical analysis of previous work by the Earth Engineering Center and on published reports and examines the possibilities for the proposed thermal plasma (TP) processes to be recover energy from MSW as an alternative to the conventional waste-to-energy (WTE) by grate combustion. In particular, this study will investigate two prominent thermal plasma technologies that are presently under development: The Alter NRG “Westinghouse” process in the U.S. and the Europlasma process in France. The environmental impacts and the technical economic aspects of plasma-assisted WTE processes will be compared to the traditional process of MSW combustion on a moving grate.

scholarly journals HEAVY METALS IN STREAM SEDIMENTS AFFECTED BY A LANDFILL AND ASSOCIATED IMPACT ON GROUNDWATER QUALITY

2017 ◽  
Vol 43 (5) ◽  
pp. 2635 ◽  
Author(s):  
E. Koutsopoulou ◽  
P. Tsolis-Katagas ◽  
D. Papoulis
Keyword(s):  
Heavy Metals ◽  
Environmental Impact ◽  
Groundwater Quality ◽  
Stream Sediments ◽  
Soil Samples ◽  
Solid Wastes ◽  
Sanitary Landfill ◽  
Chemical Analyses ◽  
Municipal Solid Wastes ◽  
Run Off

Sanitary landfill facilities are essential to modern societies as repositories for municipal solid wastes. However, they always entrain a certain risk of environmental impact. For this reason monitoring is essential to their operation. In the present work, the environmental impact of such a landfill is studied. Soil samples were collected in and around the landfill and their mineralogy was studied. Top layers of stream sediments were collected to examine possible dispersion of pollutants in the environment. Chemical analyses showed enrichment in As, Cu, Zn, and Pb in the stream sediments compared to uncontaminated samples. The presence of anions such as chloride, sulphate and phosphate adsorbed on clay minerals suggest the interaction of stream sediments with run-off water from the landfill. The groundwater near the landfill site was characterised as not potable and not suitable for irrigation purposes, because some parameters such as NO3 - and Cl- were close or exceeded the permissible limits given by EE, EPA and WHO.

scholarly journals Mobility Restrictions and Air Quality under COVID-19 Pandemic in São Paulo, Brazil

2020 ◽  
Author(s):  
Edmilson D. Freitas ◽  
Sergio A. Ibarra-Espinosa ◽  
Mario E. Gavidia-Calderón ◽  
Amanda Rehbein ◽  
Sameh A. Abou Rafee ◽  
...  
Keyword(s):  
Air Quality ◽  
Air Pollutants ◽  
Large Scale ◽  
Hospital Admissions ◽  
Air Pollutant ◽  
Government Officials ◽  
Social Unrest ◽  
The Public ◽  
Containment Measure ◽  
Mobility Reduction

Social distancing policies put in place during COVID-19 epidemic in addition to helping to limit the spread of the disease also contributed to improving urban air quality. Here we show a decrease in air pollutant concentration as a consequence of mobility reduction in São Paulo during the containment measure which began on 22nd March 2020. When comparing to foregoing weeks to equivalent periods of 2019, the concentration of most air pollutants sharply decreased in the first days of mobility restriction, to then increase again after government officials downplayed the threat of the disease. This trend is also followed by a decrease in hospital admissions by SARS-influenza. Therefore, despite the great economic and social unrest caused by the pandemic, this unique situation shows that large-scale mobility reduction policy had a significant impact on air quality, benefiting, directly and indirectly, the public health system.

Sign in / Sign up

Export Citation Format

Share Document