scholarly journals A review of the state of development of aerobic granular sludge technology over the last 20 years: Full-scale applications and resource recovery

2021 ◽  
pp. 100173
Author(s):  
Rania Hamza ◽  
Anahita Rabii ◽  
Fatima-zahra Ezzahraoui ◽  
Guillian Morgan ◽  
Oliver Terna Iorhemen
Keyword(s):  
Granular Sludge ◽  
Resource Recovery ◽  
Full Scale ◽  
The State ◽  
Aerobic Granular Sludge

scholarly journals Anaerobic hydrolysis of complex substrates in full-scale aerobic granular sludge: enzymatic activity determined in different sludge fractions

2021 ◽  
Author(s):  
Sara Toja Ortega ◽  
Mario Pronk ◽  
Merle K. de Kreuk
Keyword(s):  
Hydrolytic Enzymes ◽  
Oxygen Demand ◽  
Domestic Wastewater ◽  
Granular Sludge ◽  
Hydrolytic Activity ◽  
Full Scale ◽  
Aerobic Granular Sludge ◽  
Bulk Liquid ◽  
Granule Formation ◽  
Hydrolysis Of

Abstract Complex substrates, like proteins, carbohydrates, and lipids, are major components of domestic wastewater, and yet their degradation in biofilm-based wastewater treatment technologies, such as aerobic granular sludge (AGS), is not well understood. Hydrolysis is considered the rate-limiting step in the bioconversion of complex substrates, and as such, it will impact the utilization of a large wastewater COD (chemical oxygen demand) fraction by the biofilms or granules. To study the hydrolysis of complex substrates within these types of biomass, this paper investigates the anaerobic activity of major hydrolytic enzymes in the different sludge fractions of a full-scale AGS reactor. Chromogenic substrates were used under fully mixed anaerobic conditions to determine lipase, protease, α-glucosidase, and β-glucosidase activities in large granules (>1 mm in diameter), small granules (0.2–1 mm), flocculent sludge (0.045–0.2 mm), and bulk liquid. Furthermore, composition and hydrolytic activity of influent wastewater samples were determined. Our results showed an overcapacity of the sludge to hydrolyze wastewater soluble and colloidal polymeric substrates. The highest specific hydrolytic activity was associated with the flocculent sludge fraction (1.5–7.5 times that of large and smaller granules), in agreement with its large available surface area. However, the biomass in the full-scale reactor consisted of 84% large granules, making the large granules account for 55–68% of the total hydrolytic activity potential in the reactor. These observations shine a new light on the contribution of large granules to the conversion of polymeric COD and suggest that large granules can hydrolyze a significant amount of this influent fraction. The anaerobic removal of polymeric soluble and colloidal substrates could clarify the stable granule formation that is observed in full-scale installations, even when those are fed with complex wastewaters. Key points • Large and small granules contain >70% of the hydrolysis potential in an AGS reactor. • Flocculent sludge has high hydrolytic activity but constitutes <10% VS in AGS. • AGS has an overcapacity to hydrolyze complex substrates in domestic wastewater. Graphical abstract

Resource recovery from an aerobic granular sludge process treating domestic wastewater

2020 ◽  
Vol 34 ◽  
pp. 101148 ◽  
Author(s):  
Inci Karakas ◽  
Stanley B. Sam ◽  
Ender Cetin ◽  
Ebru Dulekgurgen ◽  
Gulsum Yilmaz
Keyword(s):  
Domestic Wastewater ◽  
Granular Sludge ◽  
Resource Recovery ◽  
Aerobic Granular Sludge

Pilot-scale aerobic granular sludge in the treatment of municipal wastewater: Optimizations in the start-up, methodology of sludge discharge, and evaluation of resource recovery

2020 ◽  
Vol 311 ◽  
pp. 123467 ◽  
Author(s):  
Silvio Luiz de Sousa Rollemberg ◽  
Lorayne Queiroz de Oliveira ◽  
Amanda Nascimento de Barros ◽  
Paulo Igor Milen Firmino ◽  
André Bezerra dos Santos
Keyword(s):  
Municipal Wastewater ◽  
Granular Sludge ◽  
Resource Recovery ◽  
Pilot Scale ◽  
Aerobic Granular Sludge ◽  
Start Up

scholarly journals A settling model for full-scale aerobic granular sludge

2020 ◽  
Vol 186 ◽  
pp. 116135 ◽  
Author(s):  
Edward J.H. van Dijk ◽  
Mario Pronk ◽  
Mark C.M. van Loosdrecht
Keyword(s):  
Granular Sludge ◽  
Full Scale ◽  
Aerobic Granular Sludge

Towards sustainable waste water treatment with Dutch Nereda® technology

2011 ◽  
Vol 6 (3) ◽  
Author(s):  
H. F. van der Roest ◽  
L. M. M. de Bruin ◽  
G. Gademan ◽  
F. Coelho
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
The Netherlands ◽  
Waste Water Treatment ◽  
Development Program ◽  
Granular Sludge ◽  
Pilot Scale ◽  
Full Scale ◽  
Aerobic Granular Sludge ◽  
Under Construction

In the period 2003 to date, in the Netherlands an extensive research has been conducted for the development of a new breakthrough waste water technology. This Nereda® technology is based upon aerobic granular sludge and distinguishes itself from traditional activated sludge systems by a significant lower energy and chemical consumption, much less space requirements and lower costs. The STOWA, University of Delft, DHV and six Dutch water boards participate in a Dutch Nereda® development program. At five WWTPs in the Netherlands pilot research focused on granulation and nutrient removal and was supported by fundamental research. The achievements resulted in demonstration plants in South Africa and Portugal. The first full scale applications will be realized in the Netherlands. Currently world's first full scale plant at Epe, The Netherlands is under construction and will be started up in 2011. This article summarizes the results of the pilot scale investigations, executed in The Netherlands at five different municipal waste water treatment plants.

scholarly journals Effect of an Increased Particulate COD Load on the Aerobic Granular Sludge Process: A Full Scale Study

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1472
Author(s):  
Sara Toja Ortega ◽  
Mario Pronk ◽  
Merle K. de Kreuk
Keyword(s):  
Microbial Community ◽  
Nutrient Removal ◽  
Microbial Community Composition ◽  
Treatment Plant ◽  
Granular Sludge ◽  
Full Scale ◽  
Test Period ◽  
Normal Operation ◽  
Aerobic Granular Sludge ◽  
Hydrolytic Activities

High concentrations of particulate COD (pCOD) in the influent of aerobic granular sludge (AGS) systems are often associated to small granule diameter and a large fraction of flocculent sludge. At high particulate concentrations even granule stability and process performance might be compromised. However, pilot- or full-scale studies focusing on the effect of real wastewater particulates on AGS are scarce. This study describes a 3-month period of increased particulate loading at a municipal AGS wastewater treatment plant. The pCOD concentration of the influent increased from 0.5 g COD/L to 1.3 g COD/L, by adding an untreated slaughterhouse wastewater source to the influent. Sludge concentration, waste sludge production and COD and nutrient removal performance were monitored. Furthermore, to investigate how the sludge acclimatises to a higher influent particulate content, lipase and protease hydrolytic activities were studied, as well as the microbial community composition of the sludge. The composition of the granule bed and nutrient removal efficiency did not change considerably by the increased pCOD. Interestingly, the biomass-specific hydrolytic activities of the sludge did not increase during the test period either. However, already during normal operation the aerobic granules and flocs exhibited a hydrolytic potential that exceeded the influent concentrations of proteins and lipids. Microbial community analysis also revealed a high proportion of putative hydrolysing and fermenting organisms in the sludge, both during normal operation and during the test period. The results of this study highlight the robustness of the full-scale AGS process, which can bear a substantial increase in the influent pCOD concentration during an extended period.

Aerobic Granular Sludge Bench-Scale Testing to Full-Scale Conceptual Design

2015 ◽  
Vol 2015 (3) ◽  
pp. 1-22
Author(s):  
Roland Jezek ◽  
Ed Kobylinski ◽  
Mark Steichen ◽  
James L Barnard ◽  
Belinda Sturm
Keyword(s):  
Conceptual Design ◽  
Granular Sludge ◽  
Full Scale ◽  
Aerobic Granular Sludge ◽  
Bench Scale

Advancements in the application of aerobic granular biomass technology for sustainable treatment of wastewater

2013 ◽  
Vol 8 (1) ◽  
pp. 47-54 ◽  
Author(s):  
A. Giesen ◽  
L. M. M. de Bruin ◽  
R. P. Niermans ◽  
H. F. van der Roest
Keyword(s):  
Municipal Wastewater ◽  
New Technology ◽  
Granular Sludge ◽  
Full Scale ◽  
Aerobic Granular Sludge ◽  
Development Effort ◽  
Municipal Wastewater Treatment ◽  
Granular Biomass ◽  
Under Construction ◽  
Activated Sludge Systems

Aerobic granular sludge technology can be regarded as the future standard for industrial and municipal wastewater treatment. As a consequence, a growing number of institutes and universities focus their scientific research on this new technology. Recently, after extensive Dutch research and development effort, an aerobic granular biomass technology has become available to the market. Full scale installations for both industrial and municipal applications are already on stream, under construction or in design. The technology is distinguished by the name ‘Nereda®’ and based on the specific characteristics of aerobic granular sludge. It can be considered as the first mature aerobic granular sludge technology applied at full scale. It improves on traditional activated sludge systems by a significantly lower use of energy and chemicals, its compactness and its favorable capital and operational costs.

scholarly journals Exploring resource recovery potentials for the aerobic granular sludge process by mass and energy balances – energy, biopolymer and phosphorous recovery from municipal wastewater

2020 ◽  
Vol 6 (8) ◽  
pp. 2164-2179
Author(s):  
Philipp Kehrein ◽  
Mark van Loosdrecht ◽  
Patricia Osseweijer ◽  
John Posada
Keyword(s):  
Municipal Wastewater ◽  
Granular Sludge ◽  
Resource Recovery ◽  
Aerobic Granular Sludge ◽  
Design Stage ◽  
Treatment Processes ◽  
Trade Offs ◽  
Energy Balances ◽  
Excellent Tool ◽  
Mass And Energy Balances

Mass and energy balances are an excellent tool to explore the integration of resource recovery technologies into wastewater treatment processes and reveal recoverable resource quantities and occurring trade-offs at an early process design stage.

Sign in / Sign up

Export Citation Format

Share Document