Comprehensive evaluation of bioavailable phosphorus in biochar synthesized by co-pyrolysis of sewage sludge and straw ash

Xu, Xiaoxiao; Zou, Zhengkang; Guo, Xiao; Liang, Sha; Yang, Fan; Chen, Shuai; Yu, Wenbo; Duan, Huabo; Yuan, Shushan; Yang, Jiakuan

doi:10.1016/j.scitotenv.2024.176679

Science of The Total Environment

2024

DOI: 10.1016/j.scitotenv.2024.176679

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Comprehensive evaluation of bioavailable phosphorus in biochar synthesized by co-pyrolysis of sewage sludge and straw ash

Xiaoxiao Xu,

Zhengkang Zou,

Xiao Guo

et al.

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Advantages of Co-Pyrolysis of Sewage Sludge with Agricultural and Forestry Waste

Gusiatin

2024

Energies

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This paper explores the advantages of the co-pyrolysis of municipal sewage sludge with agricultural and forestry biomass, emphasizing its potential for environmental and economic benefits. Co-pyrolysis with lignocellulosic biomass significantly enhances biochar quality, reduces the heavy metal content, increases porosity, and improves nutrient retention, which are essential for soil applications. The biochar produced through co-pyrolysis demonstrates enhanced stability and a lower oxygen-to-carbon (O/C) ratio, making it more suitable for long-term carbon (C) sequestration and pollutant adsorption. Additionally, co-pyrolysis generates bio-oil and syngas with improved calorific value, contributing to renewable energy recovery from sewage sludge. This synergistic process also addresses waste management challenges by reducing harmful emissions and immobilizing heavy metals, thus mitigating the environmental risks associated with sewage sludge disposal. This paper covers key sections on the properties of waste materials, improvements in biochar quality and energy products, and the environmental benefits of co-pyrolysis, such as emissions reduction and heavy metal immobilization. The paper highlights trends and challenges in co-pyrolysis technology, aiming to optimize parameters for maximizing biochar yield and energy recovery while aligning with sustainability and circular economy goals. The paper concludes with recommendations for optimizing co-pyrolysis processes and scaling applications to support sustainable waste management. Overall, co-pyrolysis represents a sustainable approach to valorizing sewage sludge, transforming it into valuable resources while supporting environmental conservation.

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Advantages of Co-Pyrolysis of Sewage Sludge with Agricultural and Forestry Waste

Gusiatin

2024

Energies

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Comprehensive evaluation of bioavailable phosphorus in biochar synthesized by co-pyrolysis of sewage sludge and straw ash

Cited by 1 publication

References 60 publications

Advantages of Co-Pyrolysis of Sewage Sludge with Agricultural and Forestry Waste

Advantages of Co-Pyrolysis of Sewage Sludge with Agricultural and Forestry Waste

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