Thermal characteristics, kinetics, gas emissions and thermodynamic simulations of (co-)combustions of textile dyeing sludge and waste tea

Cai, Haiming; Liu, Jingyong; Kuo, Jia‐Hong; Büyükada, Musa; Evrendilek, Fatih

doi:10.1016/j.jclepro.2019.118113

Cited by 71 publications

(21 citation statements)

References 54 publications

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“…Based on the test results, we modeled the progress of weight loss with changes in PMMA temperature. In this modeling, we conducted a kinetic analysis of TG data such as done in various fields [12][13][14]. This weight loss can be regarded as the total amount of pyrolysis gas released.…”

Section: Plos Onementioning

confidence: 99%

Consistent modelling of material weight loss and gas release due to pyrolysis and conducting benchmark tests of the model—A case for glovebox panel materials such as polymethyl methacrylate

et al. 2021

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It is necessary to consider how a glove box’s confinement function will be lost when evaluating the amount of radioactive material leaking from a nuclear facility during a fire. In this study, we build a model that consistently explains the weight loss of glove box materials because of heat input from a flame and accompanying generation of the pyrolysis gas. The weight loss suggests thinning of the glove box housing, and the generation of pyrolysis gas suggests the possibility of fire spreading. The target was polymethyl methacrylate (PMMA), used as the glove box panel. Thermal gravimetric tests on PMMA determined the parameters to be substituted in the Arrhenius equation for predicting the weight loss in pyrolysis. The pyrolysis process of PMMA was divided into 3 stages with activation energies of 62 kJ/mol, 250 kJ/mol, and 265 kJ/mol. Furthermore, quantifying the gas composition revealed that the composition of the pyrolysis gas released from PMMA can be approximated as 100% methyl methacrylate. This result suggests that the released amount of methyl methacrylate can be estimated by the Arrhenius equation. To investigate the validity of such estimation, a sealed vessel test was performed. In this test, we observed increase of the number of gas molecules during the pyrolysis as internal pressure change of the vessel. The number of gas molecules was similar to that estimated from the Arrhenius equation, and indicated the validity of our method. Moreover, we also performed the same tests on bisphenol-A-polycarbonate (PC) for comparison. In case of PC, the number of gas molecules obtained in the vessel test was higher than the estimated value.

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Section: Plos Onementioning

confidence: 99%

Consistent modelling of material weight loss and gas release due to pyrolysis and conducting benchmark tests of the model—A case for glovebox panel materials such as polymethyl methacrylate

et al. 2021

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“…The co-combustion of sludge and other solid fuels is a feasible solution that can effectively improve the combustion performance [8]. To date, there have been many research reports regarding the co-combustion of sludge and other solid fuels by thermogravimetric analysis (TG) [9][10][11][12][13]. Zhao et al [9] investigated the co-combustion characteristics of low-rank coal semicoke and oil sludge by the TG-FTIR method.…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that blending wheat straw in sewage sludge improved the combustion performance due to the strong synergetic interaction. Chai et al [11] found that adding waste tea into textile dyeing sludge led to higher reactivity, and the average apparent activation energy reached its minimum with 40% waste tea. The co-combustion of sludge and other solid fuels in a suitable burner to produce energy is a widely used disposal method.…”

Section: Introductionmentioning

confidence: 99%

“…It has been proven that the enriched residual carbon with low volatile content and high fixed carbon content has combustion properties comparable to low-quality coal, which is opposite to the fuel characteristics of sewage sludge [21]. Thus, the co-combustion of sewage sludge and gasification fine slag residual carbon may be a complementary and effective way to counteract the negative characteristic of individual fuel [11]. Many studies have illustrated that this promotion effect during the co-combustion process is due to the synergistic catalysis between the two fuels [10,17,22].…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Thermal Behavior, Synergistic Catalysis, and Pollutant Emissions during the Co-Combustion of Sewage Sludge and Coal Gasification Fine Slag Residual Carbon

Jia

Guo

et al. 2021

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The conversion of solid waste into energy through combustion is sustainable and economical. This study aims to comprehensively evaluate and quantify the co-combustion characteristics, synergistic catalysis, and gaseous pollutant emission patterns of sewage sludge (SS) and coal gasification fine slag residual carbon (RC) as well as their blends through thermogravimetry coupled with mass spectrometry (TG-MS). The results showed that the co-combustion of SS and RC can not only improve the ignition and burnout property but also maintain the combustion stability and comprehensive combustion performance at a better level. The kinetic analysis results showed that a first-order chemical reaction and three-dimensional diffusion are the reaction mechanisms during the co-combustion of SS and RC. The synergistic catalysis between SS and RC can well explain the changes in activation energy and reaction mechanism. Furthermore, the blending ratio of SS is recommended to be maintained at 40% because of the lowest activation energy (Ea= 81.6 kJ/mol) and the strongest synergistic effect (Xi = 0.36). The emission of gaseous pollutants is corresponding to the primary combustion stages of SS, RC, and their blends. In co-combustion, the NH3, HCN, NOx, and SO2 emissions gradually rise with the increase of SS proportion in the blends due to the high content of organic compounds in SS.

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“…Sludge is an inevitable byproduct of wastewater in the wastewater disposal process [1,22]. The wastewater in latex plants usually contains abundant organic pollutants such as polymerization products and small amount of inorganic pollutants such as silicate.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Cationic Dye Adsorption Using Industrial Latex Sludge with Sulfonate and Pyrolysis Treatment

et al. 2020

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Industrial latex sludge as raw material was made into sulfonated latex sludge (SLS) and latex sludge active carbon (LSC) adsorbents by sulfonate and pyrolysis treatment to remove textile dye cationic blue X-GRRL from aqueous solution. The adsorption properties of SLS and LSC for X-GRRL were studied and compared by investigating the experimental parameters such as adsorbents dosage, pH, contact time and initial concentration. The kinetics of adsorption on SLS and LSC followed the pseudo-second-order kinetic model well. The adsorption isotherm and thermodynamic studies were further used to evaluate and compare the adsorption process of X-GRRL on SLS and LSC. The maximum adsorption capacities were 1219.6 mg/g for SLS and 476.2 mg/g for LSC according to the Langmuir model, respectively. These findings not only provide a sustainable strategy to turn industrial solid waste latex sludge into useful material for environment remediation, but also develop an efficient adsorbent for the treatment of dye wastewater.

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Thermal characteristics, kinetics, gas emissions and thermodynamic simulations of (co-)combustions of textile dyeing sludge and waste tea

Cited by 71 publications

References 54 publications

Consistent modelling of material weight loss and gas release due to pyrolysis and conducting benchmark tests of the model—A case for glovebox panel materials such as polymethyl methacrylate

Consistent modelling of material weight loss and gas release due to pyrolysis and conducting benchmark tests of the model—A case for glovebox panel materials such as polymethyl methacrylate

Evaluation of the Thermal Behavior, Synergistic Catalysis, and Pollutant Emissions during the Co-Combustion of Sewage Sludge and Coal Gasification Fine Slag Residual Carbon

Comparative Study of Cationic Dye Adsorption Using Industrial Latex Sludge with Sulfonate and Pyrolysis Treatment

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