Life cycle assessment of sewage sludge co-incineration in a coal-based power station

Hong, Jingmin; Xu, Changqing; Hong, Jinglan; Tan, Xianfeng; Chen, Wei

doi:10.1016/j.wasman.2013.05.007

Cited by 68 publications

(15 citation statements)

References 19 publications

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“…In the European Union and in China, more than 10 and 20 Tg (million Mg) of different classes of waste are respectively produced annually. That it is a significant biomass resource especially sewage sludge has been extensively used for energy generation [1].…”

Section: Introductionmentioning

confidence: 99%

The Use of LCA Method to Assess Environmental Impact of Sewage Sludge Incineration Plants

Wielgosiński

Cichowicz

Targaszewska

et al. 2017

Ecological Chemistry and Engineering S

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Life Cycle Assessment (LCA) is one of the new, little more popular in Poland of elements of environmental management. In the world literature one can find many examples of the use of LCA but mainly for comparison purposes. The paper presents results of LCA analysis made on the basis of data from a running incineration of sewage sludge. Performing a thorough analysis of this process enables improved operational system, including through a better use of the resulting products of combustion, as well as determining the impact of the thermal treatment of sludge on the environment and compared the results with data from the literature. To date, in Poland has not been carried out environmental impact assessments and the process of thermal treatment of both sludge and waste, based on the assumptions of LCA.

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Section: Introductionmentioning

confidence: 99%

The Use of LCA Method to Assess Environmental Impact of Sewage Sludge Incineration Plants

Wielgosiński

Cichowicz

Targaszewska

et al. 2017

Ecological Chemistry and Engineering S

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“…More than 0.66 million dry metric tons of sludge is generated per year in Canada and about 6.5 million dry metric tons of sludge per year in the USA [5]. There are more than 20 million tons of sewage sludge being produced annually in China [6], so sludge handling has been one of the key environmental problems; however, the basic information on sludge production, treatment and disposal is still insufficient [7]. However, high water content has been a critical problem for sewage sludge treatment and disposal further [8].…”

Section: Introductionmentioning

confidence: 99%

A comparison of isothermal with nonisothermal drying kinetics of municipal sewage sludge

Zhang

Chen

2015

J Therm Anal Calorim

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Thermal drying behavior of the municipal sewage sludge in nitrogen atmosphere was explored using a thermal analysis technique under isothermal and nonisothermal drying conditions. The Midilli model, MR ¼ expðÀkt n Þ þ bt, was the best suitable for predicting both the isothermal and nonisothermal drying behavior of the sewage sludge with the highest R 2 . The isothermal drying apparent activation energies of the first falling rate period and the second falling rate period were 18.03 and 11.87 kJ mol -1 , respectively. The nonisothermal drying apparent activation energies of sewage sludge were from 33.61 to 47.37 kJ mol -1 in the first falling rate period and from 20.47 to 33.43 kJ mol -1 in the second falling rate period, respectively. In two falling rate periods, the dominant mechanism functions for the isothermal drying were identical, À lnð1 À aÞ. The dominant mechanism functions for the first falling rate period and the second falling rate period in the nonisothermal drying were described by ½À lnð1 À aÞ 1=2 and ½À lnð1 À aÞ 1=3 , respectively.

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“…LCA can systematically and effectively evaluate the potential environmental burden associated with energy consumption, process, product, and substitution during sludge treatment (Hong et al, 2013). In the current paper, based on pilot experiments focusing on parameters such as material ratios, temperatures, and changes in water content, the co-composting of municipal sludge and garden waste was assessed in the perspective of environmental impacts by using a newly developed LCA-based tool called EASETECH.…”

Section: Introductionmentioning

confidence: 99%

Assessment of co-composting of sludge and woodchips in the perspective of environmental impacts (EASETECH)

Zhao

Damgaard

et al. 2015

Waste Management

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To reveal potential impacts to environment and human health quantitatively, co-composting and utilization of sludge and woodchips were investigated using a life-cycle-based model, EASETECH.Three scenarios were assessed through experiments using different material ratios. Emission amounts during co-composting were determined by monitoring data and mass balance. With 100 t sludge treatment, co-composting showed impacts to acidification (29.9 PE) and terrestrial eutrophication (57.7 PE) mainly for ammonia emission. Compost utilization presented savings on freshwater eutrophication (-1.5 PE) because of phosphorus substitution. With the application of fewer woodchips, impacts to acidification and terrestrial eutrophication decreased because more ammonium was reserved rather than released. All impacts to human toxicity were not significant (8.2±0.6 PE) because the compost was used for urban landscaping rather than farming. Trace gaseous compounds showed marginal impacts to global warming and toxicity categories. The results provide a new perspective and offer evidence for appropriate sludge treatment selection.

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Life cycle assessment of sewage sludge co-incineration in a coal-based power station

Cited by 68 publications

References 19 publications

The Use of LCA Method to Assess Environmental Impact of Sewage Sludge Incineration Plants

The Use of LCA Method to Assess Environmental Impact of Sewage Sludge Incineration Plants

A comparison of isothermal with nonisothermal drying kinetics of municipal sewage sludge

Assessment of co-composting of sludge and woodchips in the perspective of environmental impacts (EASETECH)

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