Genome-Centric Metatranscriptomics Analysis Reveals the Role of Hydrochar in Anaerobic Digestion of Waste Activated Sludge

Environmental Science & Technology, Journal Year: 2021, Volume and Issue: 55(12), P. 8351 - 8361

Published: May 24, 2021

Anaerobic digestion (AD) of waste activated sludge (WAS) has been widely used, while it poses problems including low methane yield and production rate. Hydrochar is produced by hydrothermal liquefaction biomass; however, little known about the role hydrochar in promoting AD WAS. The present study showed that increased rate 30.8% 31.4% pretreated dewatered enhancing acidification methanogenesis processes. Genomic-centric metatranscriptomics were used to identify metabolic activities transcriptomic response individual metagenome-assembled genomes enriched hydrochar. Although Methanosarcina sp. FDU0106 had shown unable H2, complete pathway for reduction CO2 methane. Syntrophomonas FDU0164 expressed genes extracellular electron transfer via electrically pili, suggesting exchanging electrons direct interspecies transfer. expression pili was decreased, indicating could replace its roles. Additionally, Firmicutes FDU0048, Proteiniphilum FDU0082, Aminobacterium mobile FDU0089 related degradation organics, which be enhanced yield.

Language: Английский

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Recent developments on sewage sludge pyrolysis and its kinetics: Resources recovery, thermogravimetric platforms, and innovative prospects

Computers & Chemical Engineering, Journal Year: 2021, Volume and Issue: 150, P. 107325 - 107325

Published: April 13, 2021

Language: Английский

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Effects of antibiotics on anaerobic digestion of sewage sludge: Performance of anaerobic digestion and structure of the microbial community

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 845, P. 157384 - 157384

Published: July 14, 2022

Language: Английский

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Improving Wastewater Treatment by Triboelectric-Photo/Electric Coupling Effect

ACS Nano, Journal Year: 2022, Volume and Issue: 16(3), P. 3449 - 3475

Published: Feb. 28, 2022

The ability to meet higher effluent quality requirements and the reduction of energy consumption are biggest challenges in wastewater treatment worldwide. A large proportion generated during processes is neglected lost traditional plants. As a type harvesting system, triboelectric nanogenerators (TENGs) can extensively harvest microscale energies from procedures auxiliary devices. This harvested be utilized improve removal efficiency pollutants through photo/electric catalysis, which has considerable potential application value paper gives an overall review (e.g., water wave energy, wind acoustic energy) that at various stages process introduces TENG devices for collection these treatment. Furthermore, mechanisms catalytic performances TENGs coupled with catalysis electrocatalysis, photoelectric catalysis) discussed realize pollutant efficiencies lower consumption. Then, thorough, detailed investigation devices, electrode materials, their applications summarized. Finally, intimate coupling self-powered biodegradation proposed further concept conducive improving knowledge about underlying extending better solve problems demand future.

Language: Английский

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Improved corrosion resistance of carbon steel in soft water with dendritic-polymer corrosion inhibitors

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139043 - 139043

Published: Sept. 6, 2022

Language: Английский

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A review of waste management approaches to maximise sustainable value of waste from the oil and gas industry and potential for the State of Qatar

Fuel, Journal Year: 2022, Volume and Issue: 332, P. 126220 - 126220

Published: Oct. 17, 2022

Globally, the oil and gas industry produces a large volume of waste in form produced water, sludge, flue gases that can pose negative impact on environment. As such there is need for treatment safe handling this waste. Although, several techniques have been developed waste, recent research trends highlighted sustainable management it should be coupled with resource recovery re-utilization concepts line circular economy perspectives. Essentially, converting into economic value added products, reducing environmental impacts supporting sustainability within paramount importance. This study reviews basic three types wastes streams, including solid (oil sludge), (CO2 SO2), liquids (produced water) originating from industry. The second aim to review their characterization respective technologies, challenges, possible emerging opportunities. An insight reuse potential all type considered also provided. Finally, case State Qatar provided assess theoretical market/economic selected wastes.

Language: Английский

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Critical review on negative emerging contaminant removal efficiency of wastewater treatment systems: Concept, consistency and consequences

Bioresource Technology, Journal Year: 2022, Volume and Issue: 352, P. 127054 - 127054

Published: March 26, 2022

Language: Английский

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Life cycle sustainability assessment of advanced treatment techniques for urban wastewater reuse and sewage sludge resource recovery

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 869, P. 161771 - 161771

Published: Jan. 23, 2023

Wastewater treatment plants can become a source of valuable resources, such as clean water, energy, fuels and nutrients thus contribute to the sustainable development goals transition circular economy. This be achieved by adopting advanced wastewater sludge techniques. However, these have evaluated on their sustainability avoid any unintentional consequences. Therefore, this paper presents life cycle assessment techniques integrating environmental, economic social aspects. The options considered for are: i) granular activated carbon; ii) nanofiltration; iii) solar photo-Fenton; iv) ozonation. technologies agricultural application anaerobically digested sludge; composted incineration; pyrolysis; v) wet air oxidation. results demonstrate that nanofiltration is most option if all aspects are equally important. If, however, higher preference given aspect, ozonation carbon would both comparable aspect more important, only nanofiltration. Among methods, technique mean-to-high resource recovery. If recovery rate lower, with incineration pyrolysis high respective products. work helps identify could combined conventional treatments promoting reuse across wide range operating parameters products outputs. findings also support notion use energy contained in urban wastewaters.

Language: Английский

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Circular Economy in Wastewater Treatment Plant–Challenges and Barriers

Published: July 31, 2018

The urban wastewater treatment plants can be an important part of circular sustainability due to integration energy production and resource recovery during clean water production. Currently the main drivers for developing industry are global nutrient needs from wastewater. article presents current trends in development based on Circular Economy assumptions, challenges barriers which prevent implementation CE Smart Cities concept with WWTPs as player. near future become "ecologically sustainable" technological systems a very nexus SMART cities.

Language: Английский

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Effect of the direct use of biomass in agricultural soil on heavy metals __ activation or immobilization?

Environmental Pollution, Journal Year: 2020, Volume and Issue: 272, P. 115989 - 115989

Published: Nov. 3, 2020

Language: Английский

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