4.7 Article

How weak static magnetic field contributes to rapid granulation and better performance of microalgal-bacterial granular sludge?

Related references

Note: Only part of the references are listed.
Article Agricultural Engineering

Granule size informs the characteristics and performance of microalgal-bacterial granular sludge for wastewater treatment

Meng Zhang et al.

Summary: This study found a strong correlation between extracellular polymeric substances of microalgal-bacterial granules and the granule size. The granule size had a positive effect on the removal of specific organics in wastewater, but a negative effect on ammonium and phosphorus removal. Granule size can be used as an indicator to reflect the synergistic interactions between microalgae and bacteria in microalgal-bacterial granules.

BIORESOURCE TECHNOLOGY (2022)

Article Engineering, Environmental

A novel strategy for rapid development of a self-sustaining symbiotic algal-bacterial granular sludge: Applying algal-mycelial pellets as nuclei

Bing Zhang et al.

Summary: This study proposed a novel strategy using algal-mycelial pellets (AMPs) as primary nuclei to accelerate the development of a self-sustaining symbiotic ABGS system. The results showed that this strategy significantly shortened the granulation time and resulted in an ABGS with excellent performance in wastewater treatment.

WATER RESEARCH (2022)

Article Agricultural Engineering

Revealing the influencing mechanisms of polystyrene microplastics (MPs) on the performance and stability of the algal-bacterial granular sludge

Shuchang Huang et al.

Summary: Microplastics have been found to have effects on the performance and stability of algal-bacterial granular sludge (ABGS) system, including inhibiting COD and total phosphorus removal efficiencies and damaging the structural stability of the system.

BIORESOURCE TECHNOLOGY (2022)

Article Agricultural Engineering

Role of rotating speed on the stability of a self-sustaining algal-bacterial photo-granules process

Wenxin Shi et al.

Summary: This study investigated the effects of rotating speed on self-sustaining algal-bacterial photo-granules sludge. The results showed that a rotating speed of 140 rpm maintained good granular stability and excellent nutrient removal. Increased extracellular polymeric substances content, alpha-helix proportion in secondary protein structure, and relative abundance of functional bacteria contributed to the stability of granular structure.

BIORESOURCE TECHNOLOGY (2022)

Article Environmental Sciences

Role of initial bacterial community in the aerobic sludge granulation and performance

Yu Jin et al.

Summary: The structure of bacterial community in seed sludge varies greatly from different sources, influencing the characteristics of sludge. This study investigated the role of different functional bacteria in AGS granulation and pollutant degradation using seed sludge obtained from different sources. Results showed that the initial bacterial community significantly affected AGS formation and pollutants removal, with seed sludge from municipal sludge granulating faster and achieving better settling performance and granulation.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

Article Engineering, Environmental

Effect of magnetic field intensity on aerobic granulation and partial nitrification-denitrification performance

Yuanjun Liu et al.

Summary: The application of magnetic field can accelerate aerobic granulation and enhance the partial nitrification-denitrification process, leading to improved performance in terms of granulation time, removal efficiency of COD, NH4+-N, and TN, as well as the balance of dominant genera.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION (2022)

Article Environmental Sciences

Rapid start-up of photo-granule process in a photo-sequencing batch reactor under low aeration conditions: Effect of inoculum AGS size

Bing Zhang et al.

Summary: This study found that under low aeration conditions, inoculating the system with 0.8-1.4 mm AGS can rapidly achieve excellent characteristics and efficient nutrient removal. The successful granulation process was facilitated by filamentous algae, extracellular polymeric substances, and the enrichment of functional bacteria.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Green & Sustainable Science & Technology

* Corresponding author.

Zhe Liu et al.

Summary: The study compared the cultivation of ABGS with endogenous and exogenous algae, finding that algae sources have a significant impact on the formation and maintenance of granular sludge, with endogenous algae accelerating granulation and improving nutrient removal efficiency.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Environmental Sciences

Start-up strategies to develop aerobic granular sludge and photogranules in sequential batch reactors

Marcos Sales et al.

Summary: In this study, start-up strategies for developing conventional aerobic granular sludge (AGS) and algal aerobic granular sludge (AAGS) (photogranules) were investigated. The results showed that AAGS had better stability and larger diameter, while AGS had a higher abundance of extracellular polymeric substances producing organisms. Variation in feeding time affected the biomass composition, with a 60-min feeding period resulting in higher nitrogen removal efficiency and more compact granules.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Environmental Sciences

Recovery of structure and activity of disintegrated aerobic granular sludge after long-term storage: Effect of exogenous N-acyl-homoserine lactones

Wei Gao et al.

Summary: This study found that exogenous AHLs regulation can accelerate the recovery of aerobic granular sludge (AGS), improve granule characteristics, and enhance the recovery of bioactivity. Functional genera like Thauera, Nitrosomonas, and Candidatus Nitrotoga play important roles in maintaining the structure and activity of AGS.

CHEMOSPHERE (2021)

Article Environmental Sciences

The influence of a static magnetic field on a Chlorella vulgaris-Bacillus licheniformis consortium and its sewage treatment effect

Xin Luo et al.

Summary: The study investigated the influence of a static magnetic field (SMF) on a Chlorella vulgaris-Bacillus licheniformis consortium and its subsequent effect on sewage treatment. The results showed that the SMF promoted the rapid formation of the algal-bacterial consortium, leading to improved efficiency in wastewater treatment.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

Article Agricultural Engineering

Role of weak magnetic strength in the operation of aerobic granular reactor for wastewater treatment containing ammonia nitrogen concentration gradient

Hongyu Wang et al.

Summary: The study showed that a 10mT magnetic field was beneficial for maintaining stable granule structure and increasing protein secretion in EPS when increasing NH4+-N load. Under a 10mT magnetic field, the total nitrogen removal rate reached above 90% and the simultaneous nitrification and denitrification efficiency was enhanced.

BIORESOURCE TECHNOLOGY (2021)

Article Environmental Sciences

Temperature-effect on the performance of non-aerated microalgal-bacterial granular sludge process in municipal wastewater treatment

Bin Ji et al.

Summary: The study found that high temperatures favored organic removal, with most of the ammonia-N being removed through microbial assimilation by microalgae and bacteria, and high efficiency of phosphorus removal. The contributions of microalgal and bacterial assimilations towards COD, ammonia and P removal appeared to be temperature-dependent.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2021)

Article Environmental Sciences

Effect of EPS and its forms of aerobic granular sludge on sludge aggregation performance during granulation process based on XDLVO theory

Yaying Wang et al.

Summary: This study revealed the different contributions of various forms of EPS (LB-EPS, TB-EPS, and EPS) to the formation process of aerobic granular sludge using surface characteristics analysis and surface thermodynamics theory. It was found that during granulation, the role of LB-EPS shifted from attraction to repulsion, while TB-EPS played a primary role in promoting the aggregation of sludge cells.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Microbiology

Microbial predation accelerates granulation and modulates microbial community composition

Siew Herng Chan et al.

Summary: The study found that predation by protozoa and bacteriophage positively correlated with the formation of aerobic granules. The increase in abundance of filamentous phages may promote the structural formation of granules, while the absence of protozoa after chemical treatment delayed the initiation of granules formation.

BMC MICROBIOLOGY (2021)

Article Engineering, Environmental

Ecological Linkages between a Biofilm Ecosystem and Reactor Performance: The Specificity of Biofilm Development Phases

Shasha Yuan et al.

Summary: The study demonstrates that different ecological processes exist at different stages of biofilm development, where interspecific cooperation plays a key role in the initial formation and rapid development of biofilms, while interspecific competition predominantly occurs in the mature stage. These processes are crucial for understanding the linkages between development and function in biofilm-based treatment processes.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

Review Environmental Sciences

Application of magnetic fields to wastewater treatment and its mechanisms: A review

Yilin Wang et al.

Summary: This review discussed the application of magnetic field in wastewater treatment and critically elaborated the mechanisms of magnetic field-enhanced wastewater treatment from the perspective of magnetic physicochemical and biological effects. The focus was on summarizing the application of magnetic field in magnetic adsorption-separation of heavy metals and dyes, treatment of domestic wastewater, and photo-magnetic coupling technology.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

Article Engineering, Chemical

Weak magnetic field affected microbial communities and function in the A/O/A sequencing batch reactors for enhanced aerobic granulation

Wanlin Lyu et al.

Summary: The study demonstrated that a weak magnetic field, particularly at an intensity of 10 mT, significantly promotes aerobic granulation and enhances nitrogen removal efficiency. Additionally, the magnetic field alters bacterial richness and diversity in the system, with genes contributing to aerobic granulation being more predominant at the 10 mT magnetic field strength.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

Article Environmental Sciences

Enhanced aerobic granulation at low temperature by stepwise increasing of salinity

Jiaxu Li et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2020)

Article Agricultural Engineering

Use of static magnetic fields to increase CO2 biofixation by the microalga Chlorella fusca

Kricelle Mosquera Deamici et al.

BIORESOURCE TECHNOLOGY (2019)

Review Biotechnology & Applied Microbiology

Microbial community structure and function in aerobic granular sludge

Juntao Xia et al.

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY (2018)

Article Biotechnology & Applied Microbiology

The attachment potential and N-acyl-homoserine lactone-based quorum sensing in aerobic granular sludge and algal-bacterial granular sludge

Bing Zhang et al.

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY (2018)

Article Engineering, Environmental

The Oxygenic Photogranule Process for Aeration-Free Wastewater Treatment

Ahmed S. Abouhend et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2018)

Article Multidisciplinary Sciences

Overcoming Microalgae Harvesting Barrier by Activated Algae Granules

Olga Tiron et al.

SCIENTIFIC REPORTS (2017)

Article Agricultural Engineering

Development of algae-bacteria granular consortia in photo-sequencing batch reactor

Lin Liu et al.

BIORESOURCE TECHNOLOGY (2017)

Article Agricultural Engineering

Magnetic fields as triggers of microalga growth: evaluation of its effect on Spirulina sp.

Kricelle Mosquera Deamici et al.

BIORESOURCE TECHNOLOGY (2016)

Article Engineering, Environmental

Size-dependent calcium carbonate precipitation induced microbiologically in aerobic granules

Yong-Qiang Liu et al.

CHEMICAL ENGINEERING JOURNAL (2016)

Article Agricultural Engineering

Calcium precipitate induced aerobic granulation

Chunli Wan et al.

BIORESOURCE TECHNOLOGY (2015)

Editorial Material Multidisciplinary Sciences

Chemistry: Reuse water pollutants

Wen-Wei Li et al.

NATURE (2015)

Review Chemistry, Applied

Magnetic Field Application and its Potential in Water and Wastewater Treatment Systems

Nur Syamimi Zaidi et al.

SEPARATION AND PURIFICATION REVIEWS (2014)

Article Agricultural Engineering

Enhanced aerobic nitrifying granulation by static magnetic field

Xin-Hua Wang et al.

BIORESOURCE TECHNOLOGY (2012)

Article Biochemistry & Molecular Biology

Calcium augmentation for enhanced denitrifying granulation in sequencing batch reactors

Ya-Juan Liu et al.

PROCESS BIOCHEMISTRY (2011)

Article Agricultural Engineering

Enhancement of biological treatment of wastewater by magnetic field

Yulan Ji et al.

BIORESOURCE TECHNOLOGY (2010)

Review Biotechnology & Applied Microbiology

Extracellular polymeric substances (EPS) of microbial aggregates in biological wastewater treatment systems: A review

Guo-Ping Sheng et al.

BIOTECHNOLOGY ADVANCES (2010)

Article Engineering, Environmental

Extracellular polymeric substances and structural stability of aerobic granule

Sunil S. Adav et al.

WATER RESEARCH (2008)

Article Engineering, Environmental

Aerobic granulation in a sequencing batch airlift reactor

JJ Beun et al.

WATER RESEARCH (2002)