Anaerobic co-digestion of textile dyeing sludge: Digestion efficiency and heavy metal stability

Zhou, Weizhu; Chen, Xiaoguang; Wang, Yu; Tuersun, Nurmangul; Ismail, Muhammad; Chen, Cheng; Li, Zenan; Song, Qi; Wang, Yiqi; Ma, Chengyu

doi:10.1016/j.scitotenv.2021.149722

Cited by 17 publications

(7 citation statements)

References 45 publications

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“…The results of this paper were analogous and could provide theoretical support for biochar to improve AD performance. This also verified the fact that the total Cu concentration increased while the bioavailable Cu concentration decreased in the later stages of AcoD, as described above, which was consistent with the results of other studies 18,36,37,55‐62 …”

Section: Resultssupporting

confidence: 92%

“…Total Cu content was determined according to previous literature 37 . The availability of Cu was quantified by the amount of Cu released during AcoD by diethylenetriamine pentaacetic acid (DTPA) extraction 38 .…”

Section: Methodsmentioning

confidence: 99%

“…Total Cu content was determined according to previous literature. 37 The availability of Cu was quantified by the amount of Cu released during AcoD by diethylenetriamine pentaacetic acid (DTPA) extraction. 38 A modified Tessier sequential extraction procedure extracted the distinct morphological fractions of Cu.…”

Section: Extraction and Analysis Of Cumentioning

confidence: 99%

“…This also verified the fact that the total Cu concentration increased while the bioavailable Cu concentration decreased in the later stages of AcoD, as described above, which was consistent with the results of other studies. 18,36,37,[55][56][57][58][59][60][61][62] Influence of biochar on speciation of Cu Cu species variations during AcoD are shown in Fig. 5(b).…”

Section: Influence Of Biochar On Cu Extractionmentioning

confidence: 99%

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Effects of biochar addition on anaerobic co‐digestion of sewage sludge and swine manure: copper immobilization and digestion performance

Han²,

Zhu

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUND: A significant concentration of the heavy metal Cu is found in sludge and swine manure, and excessive agricultural use of Cu can seriously inhibit plant growth. There is a critical need for an effective technology to address the issue of biotoxicity.RESULTS: This study aimed to immobilize heavy metal Cu and decrease its bioavailability by adding biochar for anaerobic co-digestion (AcoD) with swine manure and sludge. Coconut shell biochar (CSB), bamboo biochar (BC) and fruit shell biochar (FSB) were prepared by pyrolysis based on coconut shell, bamboo and fruit shell as precursors. Anaerobic co-digestion experiments were designed (sludge inoculation ratio: 20% of working volume), a biochar dosing ratio of 5% (dry weight of swine manure) and the effects on Cu immobilization and biogas production performance were investigated. CSB had a larger specific surface area (765.2 m 2 g −1 ) and more abundant surface functional groups (C O, C O, O C O, OH) than BC and FSB. CSB treatment demonstrated that the ultimate cumulative biogas production was 360.27 mL g −1 volatile solid -76.30% higher than the control (no addition). CSB addition decreased the amount of diethylenetriamine pentaacetic acid-extractable Cu to 19.75 mg kg −1 (immobilizing 75%). The correlation between environmental factors (pH, total nitrogen, total phosphorus, total organic carbon) and Cu immobilization was verified by redundancy analysis, and a positive correlation was revealed between phosphorus content and the Cu immobilization effect.CONCLUSION: This article presented comparative biochar research and contributed to assessing the environmental risk of Cu in anaerobic digestion. It guided the application of biochar for the treatment of heavy metal pollution.

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Section: Resultssupporting

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Extraction and Analysis Of Cumentioning

confidence: 99%

Section: Influence Of Biochar On Cu Extractionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of biochar addition on anaerobic co‐digestion of sewage sludge and swine manure: copper immobilization and digestion performance

Han²,

Zhu

et al. 2023

J of Chemical Tech & Biotech

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“…1 g of the residue ash of each pellet sample was ground and screened through a 100-mesh sieve. The ground sample was placed in a crucible, the first 10 mL of concentrated nitric acid was added, and the crucible was placed on a hot plate and slowly heated at 130 °C . The sample volume was continuously monitored, and when evaporated to about 2 mL further, 5 mL of nitric acid was added and heated at 180 °C until the fumes tuned into the white, transparent color of the resultant solution.…”

Section: Materials and Methodsmentioning

confidence: 99%

Valorization of Textile Sludge and Cattle Manure Wastes into Fuel Pellets and the Assessment of Their Combustion Characteristics

Gadhi,

Mahar,

Qureshi

et al. 2023

ACS Omega

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The textile wastewater sludge (TWS) treatment and disposal are environmentally challenging due to toxic organics and metals. At the same time, cattle manure (CM), with better combustion performance, i.e., calorific value and uniform burning capability, is still underutilized in many parts of the world. This study evaluated and assessed the TWS and CM blending compatibility to convert them into fuel pellets for the direct combustion option and to stabilize toxic contaminants in TWS. After initial drying, grinding, and particle size control of the raw TWS and CM, both were blended at different ratios. The blended and nonblended TWS and CM samples were converted into pellets and analyzed for proximate and ultimate analyses, namely, moisture content, fixed carbon, CHNO, gross calorific value (GCV), bulk density, ash content, and metals, to evaluate the efficacy for energy applications. Out of three blended ratios, i.e., 75:25 (W/W%; CM/TWS), 50:50, and 25:75, the 75:25 blended pellet composition was found appropriate for fuel application. For the 75:25 blend, the obtained GCV was 12.77 MJ/kg, elemental carbon was 27.5%, volatiles were 41.7%, and residue ash was 42.8% of the total weight. Moreover, the blending ratios of 75:25 and 50:50 revealed that elemental and metal (Fe, Cu, Zn, Ni, Cr, Na, Mg, Mn) concentrations in TWS were stabilized to below threshold limits in the obtained residue ash for safe handling. The explored methods of TWS and CM waste processing, blending, and pelletization proposed a new technique for their sustainable waste valorization into energy sources.

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Anaerobic Digestion for Textile Waste Treatment and Valorization

Tharamrajah,

Shahbaz,

Baroutian

2024

ChemBioEng Reviews

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Textile waste is becoming among the most polluting waste in the world, discarded mostly in landfills. Valorizing textile waste via anaerobic digestion (AD) helps conserve resources, reduce environmental impact, and foster a circular economy. Although several reviews have discussed textile waste AD, there is a lack of detailed understanding of the challenges encountered during textile waste AD. Therefore, the goal of this review is to focus on challenges encountered and possible solutions for those challenges for biogas and fertilizer conversion via AD. Potential strategies include chemical, biological, and thermal pretreatments that significantly increase the digestion process. Co‐digestion of natural textile waste, cotton, and wool with carbon and nitrogen‐rich substrates improves AD efficiency by twofold. Moreover, separating polyester from polycotton and textile dye removal via solvent and advanced oxidation processes significantly increases methane yield compared with untreated textile waste. This review can aid in analyzing suitable methods to optimize the biogas production of textile waste via AD.

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Anaerobic co-digestion of textile dyeing sludge: Digestion efficiency and heavy metal stability

Cited by 17 publications

References 45 publications

Effects of biochar addition on anaerobic co‐digestion of sewage sludge and swine manure: copper immobilization and digestion performance

Effects of biochar addition on anaerobic co‐digestion of sewage sludge and swine manure: copper immobilization and digestion performance

Valorization of Textile Sludge and Cattle Manure Wastes into Fuel Pellets and the Assessment of Their Combustion Characteristics

Anaerobic Digestion for Textile Waste Treatment and Valorization

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