Emission and migration of PCDD/Fs and major air pollutants from co-processing of sewage sludge in brick kiln

Chemosphere ◽  
2021 ◽  
Vol 265 ◽  
pp. 129120
Author(s):  
Yuxuan Ying ◽  
Yunfeng Ma ◽  
Xiaodong Li ◽  
Xiaoqing Lin
Keyword(s):  
Sewage Sludge ◽  
Air Pollutants ◽  
Brick Kiln ◽  
And Migration

scholarly journals A Multi-Isotope Approach to Tracing the Sources and Migration of Air Pollutants in East Asia

2020 ◽  
Author(s):  
Yeongmin Kim ◽  
Insung Lee ◽  
Jisuk Kang ◽  
Igor M. Villa ◽  
James Farquhar ◽  
...  
Keyword(s):  
East Asia ◽  
Air Pollutants ◽  
And Migration

scholarly journals Air Quality Effects of Pollutant Gases from Brick Kilns near Chennai

2019 ◽  
Vol 8 (3) ◽  
pp. 2284-2291
Keyword(s):  
Air Quality ◽  
Air Pollutants ◽  
Historical Data ◽  
Oxides Of Nitrogen ◽  
Brick Kiln ◽  
Pollution Effects ◽  
Brick Kilns ◽  
Toxic Pollutant ◽  
Carbon Dioxide Co2 ◽  
Pollutant Gases

Brick kiln industries are commonly found in most of the regions in our country. Many private sectors consider this type of industry more as a business rather than giving importance to hygiene and health aspects. This work has focused on the air pollutants emitted from brick kiln industries near Chennai and its environmental effects. Majority of pollutants emitted were found to be oxides of nitrogen (NOx ), carbon dioxide (CO2 ) and oxides of sulphur (SOx ). Generally all these gases have adverse bad effects on the well health of human community. Workers in brick kiln industries are directly inhaling toxic pollutant gases and suffer with various health complexities. Sampling sites were chosen based on last five years historical data. Experimental survey was done in the chosen sampling sites to observe the severity of pollution around the place. Time bound study and observation was conducted to know the pollution effects in various months ranging from October 2018 to February 2019. Air Quality Index (AQI) was calculated and remedial measures were suggested.

scholarly journals Two-in-One Fuel Synthetic Bioethanol-Lignin from Lignocellulose with Sewage Sludge and Its Air Pollutants Reduction Effects

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3072 ◽  
Author(s):  
Ju-Hyoung Park ◽  
Min-Ho Jin ◽  
Young-Joo Lee ◽  
Gyu-Seob Song ◽  
Jong Won Choi ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Flue Gas ◽  
Air Pollutants ◽  
Volatile Matter ◽  
Unburned Carbon ◽  
Heating Value ◽  
Average Value ◽  
Global Issue ◽  
Sewage Sludge Management ◽  
Environmentally Sound

Developing effective, economical, and environmentally sound approaches for sewage sludge management remains an important global issue. In this paper, we propose a bioethanol-lignin (nonfood biomass)-based sewage sludge upgrading process for enhancing the heating value and reducing air pollutants of hybrid sewage sludge fuel (HSF) for the effective management of sewage sludge. Sewage sludge paste with the lignin-CaO solution implies drying at 105 °C accompanied by torrefaction at 250 °C. During torrefaction, moisture and partly volatile matter begin to evaporate, and are almost vaporized out to the surface. In this study, the proposed process enhances the net caloric value (NCV) to 37%. The lignin-embedded HSF shows a two-in-one combustion peak regardless of the mixing ratio, resulting in a 70% reduction of unburned carbon (UBC) emissions, which is one of the particular matter (PM) sources of combustion flue gas. Other air pollutants, such as CO, hydrocarbon, NOx, and SOx, were also reduced by the proposed process. In particular, SOx emission remained at ~1 ppm (average value) regardless of the sulfur content of the fuel.

scholarly journals Simultaneous Determination of Fluoroquinolones and Sulfonamides Originating from Sewage Sludge Compost

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
K. Kipper ◽  
M. Lillenberg ◽  
K. Herodes ◽  
L. Nei ◽  
E. Haiba
Keyword(s):  
Sewage Sludge ◽  
High Performance ◽  
Solid Phase ◽  
Selected Reaction Monitoring ◽  
Ionization Mass ◽  
Simple Liquid ◽  
Triticum Vulgare ◽  
Mode Method ◽  
And Migration

A simultaneous method for quantitative determination of traces of fluoroquinolones (FQs) and sulfonamides (SAs) in edible plants fertilized with sewage sludge was developed. The compounds were extracted from the plants by rapid and simple liquid extraction followed by extracts clean-up using solid phase extraction. The eluent additive 1,1,1,3,3,3-hexafluoro-2-propanol was used for liquid chromatographic detection to achieve separation of structurally similar antimicrobials like ciprofloxacin and norfloxacin. Identification and quantification of the compounds were performed using high-performance liquid chromatography with electrospray ionization mass spectrometry in selected reaction monitoring mode. Method was validated and extraction recoveries of FQs and SAs ranged from 66% to 93%. The limit of quantifications was from 5 ng/g in the case of ofloxacin to 40 ng/g for norfloxacin. The method precision ranged from 1.43% to 2.61%. The developed novel method was used to evaluate the plats antimicrobial uptake (potato(Solanum tuberosumL.), carrot(Daucus carotaL.), lettuce(Lactuca sativaL.), and wheat(Triticum vulgareL.)) from soil and migration of the analytes inside the plants.

Demonstration of Retinal Glycogen with Silver Methenamine

1971 ◽  
Vol 29 ◽  
pp. 564-565
Author(s):  
A. W. Sedar ◽  
G. H. Bresnick
Keyword(s):  
Lactic Acid ◽  
Chromic Acid ◽  
Periodic Acid ◽  
Müller Cell ◽  
External Limiting Membrane ◽  
Electron Microscope Level ◽  
Reactive Process ◽  
Inner Limiting Membrane ◽  
Muller Cell ◽  
And Migration

After experimetnal damage to the retina with a variety of procedures Müller cell hypertrophy and migration occurs. According to Kuwabara and others the reactive process in these injuries is evidenced by a marked increase in amount of glycogen in the Müller cells. These cells were considered originally supporting elements with fiber processes extending throughout the retina from inner limiting membrane to external limiting membrane, but are known now to have high lactic acid dehydrogenase activity and the ability to synthesize glycogen. Since the periodic acid-chromic acid-silver methenamine technique was shown to demonstrate glycogen at the electron microscope level, it was selected to react with glycogen in the fine processes of the Müller cell that ramify among the neural elements in various layers of the retina and demarcate these cells cytologically. The Rhesus monkey was chosen as an example of a well vascularized retina and the rabbit as an example of a avascular retina to explore the possibilities of the technique.

Sign in / Sign up

Export Citation Format

Share Document