Exploring the mechanism and negentropy of photogranules for efficient carbon, nitrogen and phosphorus recovery from wastewater

Wang, Zhu; Chen, Wei; Wang, Jiale; Gao, Minglang; Zhang, Dandan; Zhang, Shen; Hao, Yonghao; Song, Hongjiao

doi:10.1016/j.cej.2023.146510

Cited by 1 publication

(1 citation statement)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Life cycle assessment (LCA) has demonstrated the sustainability and environmental feasibility of laboratoryscale photogranules, and the energy neutral of the photogranule-based system may be within reach (Brockmann et al, 2021). Similarly, thermodynamic modeling support that photogranules achieve negative entropy, which entails the conversion of unavailable disordered energy (light) into available ordered energy of low entropy (Wang et al, 2023d). Overall, the potential applications of photogranule-based wastewater treatment are promising while further researches are still necessary in several areas.…”

Section: Photogranule As a New Approach Toward Sustainable Nitrate Re...mentioning

confidence: 99%

Research progress and prospect of low-carbon biological technology for nitrate removal in wastewater treatment

Zheng,

Zhang,

Kong

et al. 2024

Front. Environ. Sci. Eng.

View full text Add to dashboard Cite

Wastewater treatment plants are the major energy consumers and significant sources of greenhouse gas emissions, among which biological nitrogen removal of wastewater is an important contributor to carbon emissions. However, traditional heterotrophic denitrification still has the problems of excessive residual sludge and the requirement of external carbon sources. Consequently, the development of innovative low-carbon nitrate removal technologies is necessary. This review outlines the key roles of sulfur autotrophic denitrification and hydrogen autotrophic denitrification in low-carbon wastewater treatment. The discovered nitrate/nitrite dependent anaerobic methane oxidation enables sustainable methane emission reduction and nitrogen removal by utilizing available methane in situ. Photosynthetic microorganisms exhibited a promising potential to achieve carbon-negative nitrate removal. Specifically, the algal-bacterial symbiosis system and photogranules offer effective and prospective low-carbon options for nitrogen removal. Then, the emerging nitrate removal technology of photoelectrotrophic denitrification and the underlying photoelectron transfer mechanisms are discussed. Finally, we summarize and prospect these technologies, highlighting that solar-driven biological nitrogen removal technology is a promising area for future sustainable wastewater treatment. This review has important guiding significance for the design of low-carbon wastewater treatment systems.

show abstract

Section: Photogranule As a New Approach Toward Sustainable Nitrate Re...mentioning

confidence: 99%

Research progress and prospect of low-carbon biological technology for nitrate removal in wastewater treatment

Zheng,

Zhang,

Kong

et al. 2024

Front. Environ. Sci. Eng.

View full text Add to dashboard Cite

show abstract

Exploring the mechanism and negentropy of photogranules for efficient carbon, nitrogen and phosphorus recovery from wastewater

Cited by 1 publication

References 71 publications

Research progress and prospect of low-carbon biological technology for nitrate removal in wastewater treatment

Research progress and prospect of low-carbon biological technology for nitrate removal in wastewater treatment

Contact Info

Product

Resources

About