Carbon neutrality of wastewater treatment - A systematic concept beyond the plant boundary

Li, Lanqing; Wang, Xiuheng; Miao, Jingyu; Abulimiti, Aliya; Jing, Xinsheng; Ren, Nan-Qi

doi:10.1016/j.ese.2022.100180

Cited by 91 publications

(44 citation statements)

References 51 publications

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“…Average salt adsorption rate (ASAR, mg g −1 s −1 ) is another important indicator to describe CDI kinetics and can be calculated using eqn (2).…”

Section: Tests With Prepared Electrodesmentioning

confidence: 99%

“…The rapid growth in industrialization and population have led to an intensive demand of water resources, rendering freshwater scarcity as one of the most severe worldwide problems. 1,2 Purication techniques such as multi-effect distillation, reverse osmosis (RO), and electrodialysis have been developed for brackish water desalination. 3,4 Nevertheless, the intense energy input for these conventional desalination techniques dramatically enhances the overall carbon footprint and thus restricts their large-scale application.…”

Section: Introductionmentioning

confidence: 99%

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Polyaniline-decorated porous carbons with engineered meso/macrochannels for high performance capacitive deionization

Cao

et al. 2022

J. Mater. Chem. A

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“…Average salt adsorption rate (ASAR, mg g −1 s −1 ) is another important indicator to describe CDI kinetics and can be calculated using eqn (2).…”

Section: Tests With Prepared Electrodesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polyaniline-decorated porous carbons with engineered meso/macrochannels for high performance capacitive deionization

Cao

et al. 2022

J. Mater. Chem. A

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“…Since the transformation of energy systems is an important pathway for carbon emission mitigation, energy-carbon nexus has attracted much attention (Zhang and Hanaoka, 2022a;Zhang and Chen, 2022b). Furthermore, existing studies have found that carbon neutrality is closely linked to economic activities such as food production, wastewater treatment, and metal production (Wang et al, 2021a;Li et al, 2022a;Wang et al, 2022). Studies on the nexus of these elements and carbon (e.g., food-carbon, water-carbon, and metal-carbon nexus) can be strengthened to provide more comprehensive information for achieving carbon neutrality.…”

Section: Effects Of Socioeconomic Transitions On the Nexus Of Elementsmentioning

confidence: 99%

Reducing environmental impacts through socioeconomic transitions: critical review and prospects

Liang

Zhong

2022

Front. Environ. Sci. Eng.

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Rapid socioeconomic development has caused numerous environmental impacts. Human production and consumption activities are the underlying drivers of resource uses, environmental emissions, and associated environmental impacts (e.g., ecosystem quality and human health). Reducing environmental impacts requires an understanding of the complex interactions between socioeconomic system and environmental system. Existing studies have explored the relationships among human society, economic system, and environmental system. However, it is unclear about the research progress in the effects of socioeconomic activities on environmental impacts and the potential directions of future research. This critical review finds that existing studies have identified critical regions, sectors, and transmission pathways for resource uses, environmental emissions, and environmental impacts from supply chain perspectives. Moreover, scholars have characterized the impacts of socioeconomic transitions on resource uses and environmental emissions. However, existing studies overlook the dynamic nature of the interconnections among human society, economic system, and environmental system. In addition, the effects of socioeconomic structural transitions on environmental impacts remain unknown. This review proposes four prospects and possible solutions that will contribute to a better understanding of the complex interactions among human society, economic system, and environmental system. They can help identify more effective solutions to reduce environmental impacts through socioeconomic transitions.

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“…Direct emissions refer mainly to N 2 O, CH 4 , and CO 2 emissions, usually generated by microbial metabolic activities during wastewater treatment and sludge treatment/disposal processes. Indirect carbon emissions result from the energy in operation and resources [34,50,51]. Previous studies, based on the data reported by EU Member States compliant with the Urban Wastewater Treatment Directive (UWWTD 91/271/EEC) made available by the European Environment Agency, estimated that direct N 2 O emissions and indirect electricity emissions are the main contributors in the operation phase, followed by direct CH 4 emissions.…”

Section: Carbon Emissions Related To the Urban Wastewater Treatmentmentioning

confidence: 99%

Urban Wastewater Reuse for Citrus Irrigation in Algarve, Portugal—Environmental Benefits and Carbon Fluxes

et al. 2022

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Water scarcity is increasing in the Mediterranean and alternative sources of water are needed to meet food production needs, protect the environment and reduce the effects of climate change. Currently, many urban wastewater treatment plants (WWTP) produce high volumes of treated effluents which can be an alternative source of water for agriculture irrigation, since they fulfill the quality requirements for crops and the environment. This work analyzed the quantity and quality of a treated effluent produced by an urban WWTP in Algarve, and the environmental benefits of its use on the irrigation of a citrus orchard, as an alternative to groundwater. Carbon dioxide emissions related to orange production were quantified and the orchard’s potential to sequester CO2 was estimated. The reuse of this urban wastewater is revealed to be technologically feasible and environmentally advantageous, avoiding the overexploitation of the local aquifer and preventing the eutrophication of aquatic ecosystems, contributing to the improvement of soil characteristics and decreasing the carbon emissions in orange production. Furthermore, it was found that during the five-month experimental period, the citrus orchard sequestered 87.5% of the CO2e emitted by WWTP in the effluent treatment, converting 72,623 kg of sequestered CO2 into orange biomass.

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Carbon neutrality of wastewater treatment - A systematic concept beyond the plant boundary

Cited by 91 publications

References 51 publications

Polyaniline-decorated porous carbons with engineered meso/macrochannels for high performance capacitive deionization

Polyaniline-decorated porous carbons with engineered meso/macrochannels for high performance capacitive deionization

Reducing environmental impacts through socioeconomic transitions: critical review and prospects

Urban Wastewater Reuse for Citrus Irrigation in Algarve, Portugal—Environmental Benefits and Carbon Fluxes

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