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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Granular sludge"”.
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Development of Aerobic Granular Sludge Membrane Bioreactor (AGMBR) to Mitigate Fouling
In this research, the integration of aerobic granular sludge and membrane filtration to develop aerobic granular sludge membrane bioreactor (AGMBR) was explored. The main focus was on the in-depth study of extracellular polymeric substances (EPS) in AGMBR. Firstly, the long-term stability of …
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Rapid Startup of Aerobic Granular Sludge Using Cationic Polymer For Industrial Wastewater Treatment
The conventional activated sludge (CAS) process is used worldwide for municipal and industrial wastewater treatment. This technology has been used for over 100 years, providing sanitation and minimizing environmental damage. However, the approach is no longer deemed sustainable due to its extensive …
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Characterizing the mechanism and rate of calcium phosphate precipitation in aerobic granular sludge
… fertilizer product is growing. Aerobic granular sludge (AGS) is a promising technology that has demonstrated the ability to increase phosphorus removal while enhancing recovery through the precipitation of calcium phosphate minerals within the granule1–3. A rigorous understanding of …
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Effects Of Environmental Factors On Anaerobic Granular Sludge In Upflow Anaerobic Sludge Blanket Reactors
… on high rate anaerobic digestion and anaerobic granular sludge were studied in laboratory-scale (20 litres) and bench-scale (1.2 litres) upflow anaerobic sludge blanket (UASB) reactors.;The anaerobic bacteria, when grown in feed lacking iron and cobalt, could become iron and/or cobalt deficient …
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Formation and evaluation of the filterability of aerobic granules in a granular sludge membrane bioreactor
The technologies of aerobic granular sludge sequencing batch reactor (SBR) and membrane bioreactor (MBR) were combined in an attempt to develop an aerobic granular sludge membrane bioreactor (GMBR). The objectives were to determine the mechanisms controlling the formation of granules and granule …
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The Effect of Slowly Biodegradable Carbon on the Morphology, Integrity and Performance of Aerobic Granular Sludge
… last two decades, a new biofilm process, aerobic granular sludge technology, has been applied by researchers for organic and nutrient removal from municipal wastewater. Most studies have been performed with high strength wastewater and reported granules with irregular shape and incomplete organic …
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Treatment of dairy wastewater using enzyme pre-treatment coupled with an expanded granular sludge bed reactor
… coupled with an anaerobic down-flow expanded granular sludge bed reactor (DEGBR). The DEGBR system, previously utilized in the treatment of PSW, showed satisfactory removal efficiencies with the use of a bioremediation agent, Eco-Flush. However, Eco-Flush was found to contribute to the …
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Process simulation and experimental investigation of biofuel production in a high rate anaerobic digestion process
… conducted in a two-stage high rate expanded granular sludge bed reactor under different variables like substrate concentration, organic loading rate, and operating temperature. The third paper focuses on upgrading the biogas quality and quantity in a two-stage expanded granular sludge bed …
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Applicazione del processo a fanghi aerobici granulari per il trattamento di reflui petrolchimici
Aerobic granular sludge was successfully cultivated in two lab scale Granular sludge Sequencing Batch Reactors (GSBR, A and B) to remove organic matter and nitrogen from two different petrochemical wastewaters (PWs). The aim of this study was to define the best operating conditions (i.e., shear …
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Mechanistic understanding of biogranulation for continuous flow wastewater treatment and organic waste valorization
Aerobic granular sludge has been regarded as a promising alternative to the conventional activated sludge which has been used for a century in that granular sludge offers advantages in high biomass retention, fast sludge-water separation, and small footprint requirement. However, this technology …
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Effect of Process Intensification Techniques on Biosolids Management
… impact of process intensification practices on sludge dewatering performance. The integration of high-rate activated sludge process and anaerobic digestion elevated the sludge orthophosphate level, leading to struvite scaling and dewaterability deterioration. Superior orthophosphate removal, …
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Carbon and nitrogen removal in a granular bed baffled reactor
… a new reactor by using a bed of anaerobic granular sludge in an anaerobic baffled reactor, the granular bed baffled reactor (GRABBR). The aims of this study were to investigate the performance of GRABBR in terms of treatment efficiency for carbon and nitrogen removal, long term and shock …
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Evaluation of Granulation Processes in Upflow Anaerobic Sludge Blanket Reactors Using Oligonucleotide Probe Hybridizations
… granulation processes starting from non-granular sludge in two laboratory-scale upflow anaerobic sludge blanket reactors (Reactor G and Reactor GP). New probes for Methanosaeta spp. and Syntrophobacter spp. were developed. The influent of Reactor G contained glucose as the only energy …
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Advanced Biofilm and Aerobic Granulation Technologies for Water and Wastewater Treatment
… through high biomass retention, easy sludge-water separation, multiple multispecies synergies in proximity, resilience to shock loading, low space requirements, and reactor operational flexibility. Traditionally, attached growth refers to biofilms that require abiotic carrying media …
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Evaluation and optimisation of the performance of a multi-integrated lab-scale plant for the treatment of dairy wastewater
… persisted, particularly in the Expanded Granular Sludge Bed Reactor (EGSBR). COD removal rates ranged from 60% in week 3 to 26% in week 5, highlighting the system's potential but falling short of traditional anaerobic digestion (AD) systems, which can achieve up to 90% COD removal. …
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Nutrient (Ammonium and Phosphate) Removal Using Aerobic Granulation at Pilot scale
… in nutrient removal performance of aerobic granular sludge (AGS) reactors at pilot scale. Identifying the underlying phenomena seems necessary to enhance predictability and reliability of this process under diverse circumstances. This can ultimately broaden the practicability of this …
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Hydrocyclone Implementation at Two Wastewater Treatment Facilities To Promote Overall Settling Improvement
… as well as aid the formation of aerobic granular sludge (AGS). There has been a multitude of settling improvement experiments and initiatives for full scale wastewater treatment. However, little research has been produced utilizing larger hydrocyclones (20 m3/hr) at a full-scale …
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Toward Simple Generic Control in Anaerobic Digestion
… was tested on a significantly different Expanded Granular Sludge Blanket (EGSB) reactor operated on a sucrose based feed and which did not inform the controller design process beyond basic physical information. Two actuation strategies were explored over several months of operation, using a single …
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The effect of various control actions on anaerobic digester performance.
… rate anaerobic system followed by an activated sludge process to 'polish' the effluent is presently the best available technology not entailing excessive costs for the treatment of wastewater from sugar processing factories. Upflow anaerobic sludge blanket (UASB) reactor systems are the most …
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Exploring the factors at play to make wastewater biorefineries a reality
… microbial reactor systems like the aerobic granular sludge system (AGS) exist that suit the wastewater biorefinery approach particularly well, while activated sludge along with biological nutrient removal (BNR), the most commonly used reactor system in South Africa, is the least suitable to …