A multi-emission analysis of organic and inorganic pollutants during the combustion of sludge with high and low calorific value coals

Huang, Jingyu; Opoku, Prince Atta; Li, Guang; Li, Ke; Norgbey, Eyram

doi:10.1007/s11356-021-15301-7

Cited by 12 publications

(1 citation statement)

References 47 publications

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“…Sewage sludge combustion and co-combustion with other fuels is a topic widely elaborated on in the literature, contrary to the combustion or co-combustion of paper mill sludge [7][8][9][10][11][12]. Raw sewage sludge can be burned with other fuel, usually coal [13][14][15][16][17][18][19][20][21][22][23][24], or it can be dried to improve its calorific value Energies 2022, 15, 8964 2 of 13 for mono-combustion [16,[25][26][27][28]. However, some of the works used thermogravimetric analysis (TGA) only [7][8][9]20,29].…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Analysis of Fluidized Bed Combustion of a Mixed Fuel from Sewage and Paper Mill Sludge

et al. 2022

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The treatment and disposal of sewage sludge is one of the most important and critical issues of wastewater treatment plants. One option for sludge liquidation is the production of fuel in the form of pellets from mixed sewage and paper mill sludge. This study presents the results of the combustion of pelletized fuels, namely sewage and paper mill sludge, and their 2:1 and 4:1 blends in a fluidized bed combustor. The flue gas was analysed after reaching a steady state at bed temperatures of 700–800 °C. Commonly used flue gas cleaning is still necessary, especially for SO2; therefore, it is worth mentioning that the addition of paper mill sludge reduced the mercury concentration in the flue gas to limits acceptable in most EU countries. The analysis of ash after combustion showed that magnesium, potassium, calcium, chromium, copper, zinc, arsenic, and lead remained mostly in the ash after combustion, while all cadmium from all fuels used was transferred into the flue gas together with a substantial part of chlorine and mercury. The pellets containing both sewage and paper mill sludge can be used as an environmentally friendly alternative fuel for fluidised bed combustion. The levelized cost of this alternative fuel is at the same current price level as lignite.

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Section: Introductionmentioning

confidence: 99%

Techno-Economic Analysis of Fluidized Bed Combustion of a Mixed Fuel from Sewage and Paper Mill Sludge

et al. 2022

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Effects of anthropogenic nitrogen additions and elevated CO2 on microbial community, carbon and nitrogen content in a replicated wetland

Norgbey

Murava

Rajasekar

et al. 2022

Environ Monit Assess

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Polychlorinated dibenzo-p-dioxin/dibenzofurans (PCDD/Fs) contamination in sediments and fish from Msimbazi River in Dar es Salam, Tanzania: patterns, sources, and their exposure to humans

Pius¹,

Koosaletse-Mswela

Dikinya

et al. 2023

Environ Monit Assess

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Results of a GCXGC-TOFMS determination of PCDD/Fs in sediments and cat sh samples collected from Msimbazi river, are presented here. PCDD/Fs congeners in sediments ranged from 2.0 to 393.0 and 0.7 to 654.8 pg/g in the dry and wet season respectively. 1,2,3,4,,7,8,9-HepCDF was detected at the highest concentration but all were lower than the United States of America (USA) action level of 1000 pg/g. Toxicity for each of the sampling points ranged from 19.7 to 36.5 with a mean concentration of 27.0 pg WHO 2005 -TEQ g -1 in the dry season and 2.0 to 38.7 with a mean concentration of 20.7 pg WHO 2005 -TEQ g −1 in the wet season. Analysis of variance (ANOVA) showed that there was no signi cance difference between PCDD/Fs TEQ during the dry and the wet season, (P=0.08), α=0.05). The highest TEQ value was estimated at Jangwani in the wet season. Toxicity of PCDD/Fs in cat sh collected from Msimbazi river ranged from 9.3 to 145.2, with a mean of 61.2 pg WHO 2005 -TEQg -1 . Tetrachlorodibenzo dioxin (2,3,7,8-TCDD), was detected in all sh samples and ranged from 3.5 to 12.7 with a mean of 8.1 pg/g.

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A multi-emission analysis of organic and inorganic pollutants during the combustion of sludge with high and low calorific value coals

Cited by 12 publications

References 47 publications

Techno-Economic Analysis of Fluidized Bed Combustion of a Mixed Fuel from Sewage and Paper Mill Sludge

Techno-Economic Analysis of Fluidized Bed Combustion of a Mixed Fuel from Sewage and Paper Mill Sludge

Effects of anthropogenic nitrogen additions and elevated CO2 on microbial community, carbon and nitrogen content in a replicated wetland

Polychlorinated dibenzo-p-dioxin/dibenzofurans (PCDD/Fs) contamination in sediments and fish from Msimbazi River in Dar es Salam, Tanzania: patterns, sources, and their exposure to humans

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