Co-digestion Potential of Industrial Sludges with Municipal Sludge

Bahçeci, Hazal Aksu; Sanin, Selim; Sanin, F. Dilek

doi:10.1007/s12649-021-01409-x

Cited by 6 publications

(3 citation statements)

References 34 publications

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“…Sonication and liquid nitrogen (LN 2 ) are mechanical pretreatments that are highly efficient in the disruption and disintegration of complex bonds in the substrate chemical structure [44,45]. Although the application of these pretreatments has a positive effect, the increase in methane yield is limited, which may be a result of the reduction and/or inhibition of AD caused by the presence of some chemicals released from the substrate.…”

Section: Resultsmentioning

confidence: 99%

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Comprehensive Meta-Analysis of Pathways to Increase Biogas Production in the Textile Industry

et al. 2022

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The textile industry is one of the largest environmental polluters in the world. Although waste management via anaerobic digestion (AD) is a sustainable strategy to transform waste into clean energy and water recovery, the efficiency of the AD process is reduced by the presence of recalcitrant materials, chemicals, and toxic contents. This study aims to investigate the performance of several chemical, physical, and biological pretreatments applied to improve the biodegradability of textile waste. We performed a meta-analysis with 117 data extracted from 13 published articles that evaluated the efficiency of pretreatments applied to textile waste prior to AD to increase biogas production measured as methane (CH4) yield. Even though the majority of the studies have focused on the effect of chemical and physical pretreatments, our results showed that the application of biological pretreatments are more efficient and eco-friendlier. Biological pretreatments can increase CH4 yield by up to 360% with lower environmental risk and lower operating costs, while producing clean energy and a cleaner waste stream. Biological pretreatments also avoid the addition of chemicals and favor the reuse of textile wastewater, decreasing the current demand for clean water and increasing resource circularity in the textile industry.

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Section: Resultsmentioning

confidence: 99%

“…Although the application of these pretreatments has a positive effect, the increase in methane yield is limited, which may be a result of the reduction and/or inhibition of AD caused by the presence of some chemicals released from the substrate. As a result, the implementation of these pretreatments may become economically unfeasible [45].…”

Section: Resultsmentioning

confidence: 99%

Comprehensive Meta-Analysis of Pathways to Increase Biogas Production in the Textile Industry

et al. 2022

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“…During the disposal of industrial wastewater and domestic sewage, large amounts of suspended colloid substances are produced and the mixed dispersion system consisting of these substances is called sludge. According to the source classification, the sludge is mainly divided into water supply plant sludge, water dredging sludge, industrial wastewater sludge, and domestic sewage sludge. , With the development of economy and society, the yield of sludge is increasing rapidly, and the global output of wet sludge is estimated to reach 224 million tons by 2025 . The growth of the sludge yield has had profound impacts on the environment and ecology.…”

Section: Introductionmentioning

confidence: 99%

Dehydration Performance of Municipal Sludge and Its Dewatering Conditioning Methods: A Review

Jiang

Gao

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Municipal sludge is an inevitable byproduct during the treatment of wastewater, which is produced by sewage treatment plants in urban residential areas, and it contains pathogens, heavy metals, and other pollutants. Municipal sludge is suitable for application in energy utilization because of its high organic content and relatively low toxic matter. The high moisture content of municipal sludge brings huge difficulties to its harmless disposal and resource utilization. At present, the main method used for sludge dehydration is mechanical dewatering. However, the mud cake produced by this method still has a water content of up to 80%, which does not meet the current rigorous requirements. Therefore, the development of deep dehydration technology for sludge is imperative. In this paper, the basic properties and structure of sludge were summarized. As a key component of sludge flocs, extracellular polymeric substance (EPS) has received much attention in sludge dewatering conditioning. Meanwhile, the influencing factors of sludge dewatering were also fully elaborated, including sludge types, sewage hardness, surface charge, size distribution, and sludge viscosity. And the main methods of sludge dewatering treatment were comprehensively included, namely, the physical method, chemical method, biological method, and combined conditioning methods. The advantages and disadvantages of each method are mentioned, and their application situations were analyzed. Furthermore, comment was provided on the conditioning mechanism, adaptability, prospects, and limitations of the techniques for improving sludge dewatering. This systematic review related to sludge dewatering can not only provide reference information for the conditioning method but also benefit the exploitation of efficient and ecofriendly sludge dewatering technology.

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Review on the use of sludge in cement kilns: Mechanism, technical, and environmental evaluation

Pang

Mao

Yang

et al. 2023

Process Safety and Environmental Protection

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Co-digestion Potential of Industrial Sludges with Municipal Sludge

Cited by 6 publications

References 34 publications

Comprehensive Meta-Analysis of Pathways to Increase Biogas Production in the Textile Industry

Comprehensive Meta-Analysis of Pathways to Increase Biogas Production in the Textile Industry

Dehydration Performance of Municipal Sludge and Its Dewatering Conditioning Methods: A Review

Review on the use of sludge in cement kilns: Mechanism, technical, and environmental evaluation

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