A Comprehensive Review on Wastewater Nitrogen Removal and Its Recovery Processes

International Journal of Environmental Research and Public Health, Год журнала: 2023, Номер 20(4), С. 3429 - 3429

Опубликована: Фев. 15, 2023

Discharging large amounts of domestic and industrial wastewater drastically increases the reactive nitrogen content in aquatic ecosystems, which causes severe ecological stress biodiversity loss. This paper reviews three common types denitrification processes, including physical, chemical, biological mainly focuses on membrane technology for recovery. The applicable conditions effects various treatment methods, as well advantages, disadvantages, influencing factors technologies, are summarized. Finally, it is proposed that developing effective combinations different methods researching new processes with high efficiency, economy, energy savings, such microbial fuel cells anaerobic osmotic bioreactors, research development directions processes.

Язык: Английский

---

Review of the mechanisms involved in dissimilatory nitrate reduction to ammonium and the efficacies of these mechanisms in the environment

Environmental Pollution, Год журнала: 2024, Номер 345, С. 123480 - 123480

Опубликована: Фев. 5, 2024

Язык: Английский

---

Circular Economy in Wastewater Treatment Plant—Water, Energy and Raw Materials Recovery

Energies, Год журнала: 2023, Номер 16(9), С. 3911 - 3911

Опубликована: Май 5, 2023

Nowadays, the main challenge for industrial and municipal enterprises is related to tightening regulations recommendations regarding environmental protection, which have been included in circular economy (CE) package. Enterprises from all sectors, including water sewage management, are obliged actively participate CE transition. Modern wastewater treatment plants (WWTPs) should include actions aimed at a more sustainable use of available resources (water, energy, raw materials) contribute protection natural resources. In this way, they can be treated as resource facilities. This paper proposes conceptual framework ‘Wastewater Treatment Plant Future’ that includes several technological solutions take into account management waste streams generated WWTPs, such (WW), sludge (SS) ash (SSA). Many already taken modernize build WWTPs respond current future challenges protection. case Future’, recovery water, energy materials strongly recommended. The implementation analyzed facilities incorporated many strategies policy frameworks, national international (including European) documents. proposed could indirectly satisfying significant technological, social needs generations, line with sustainability principles.

Язык: Английский

---

Tracing and utilizing nitrogen loss in wastewater treatment: The trade-off between performance improvement, energy saving, and carbon footprint reduction

Journal of Environmental Management, Год журнала: 2023, Номер 349, С. 119525 - 119525

Опубликована: Ноя. 9, 2023

Язык: Английский

---

Nutrients recovery by coupled bioreactor of heterotrophic ammonia assimilation and microbial fuel cell in saline wastewater

The Science of The Total Environment, Год журнала: 2024, Номер 918, С. 170697 - 170697

Опубликована: Фев. 6, 2024

Язык: Английский

---

Incorporating microbial inoculants to reduce nitrogen loss during sludge composting by suppressing denitrification and promoting ammonia assimilation

The Science of The Total Environment, Год журнала: 2024, Номер 915, С. 170000 - 170000

Опубликована: Янв. 18, 2024

Язык: Английский

---

Toward nitrogen recovery: Co-cultivation of microalgae and bacteria enhances the production of high-value nitrogen-rich cyanophycin

Water Research, Год журнала: 2024, Номер 256, С. 121624 - 121624

Опубликована: Апрель 15, 2024

Язык: Английский

---

Recovery mechanism of heterotrophic ammonia assimilation system under chromium hexavalent stress

Bioresource Technology, Год журнала: 2024, Номер 399, С. 130615 - 130615

Опубликована: Март 19, 2024

Язык: Английский

---

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

Frontiers of Environmental Science & Engineering, Год журнала: 2024, Номер 18(7)

Опубликована: Март 25, 2024

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

Язык: Английский

---

Nitrogen cycling process and application in different prawn culture modes

Reviews in Aquaculture, Год журнала: 2024, Номер 16(4), С. 1580 - 1602

Опубликована: Апрель 9, 2024

Abstract Nitrogenous waste is a global concern in aquatic ecosystems. In the shrimp farming system, feeding main input of nitrogen, which leads to accumulation nitrogenous waste, such as ammonia, nitrite, and nitrate. Nitrogen cycling crucial for removal stability aquaculture system. Under action different functional microorganisms, variety nitrogen pathways can be used transformation waste. Understanding complexity cycle necessary improving environment. This review examines many components mechanisms involved including nitrification, denitrification, anammox, heterotrophic assimilation, autotrophic assimilation. Because difference characteristics, culture modes are diverse. The current application outdoor pond mode indoor industrialized mode, was presented combination with requirements dissolved oxygen (DO), organic matter, carbon–nitrogen ratio, light, other environmental factors. Overall, denitrification processes According characteristics utilizing enhance efficiency cycle, facilitate elimination optimize water environment, improve overall benefits.

Язык: Английский

---