Wastewater as a resource: a unique approach to achieving energy sustainability

2011 ◽  
Vol 63 (9) ◽  
pp. 2004-2009 ◽  
Author(s):  
P. M. Sutton ◽  
B. E. Rittmann ◽  
O. J. Schraa ◽  
J. E. Banaszak ◽  
A. P. Togna
Keyword(s):  
Anaerobic Digestion ◽  
Organic Carbon ◽  
Computer Modelling ◽  
Large Fraction ◽  
Membrane Bioreactors ◽  
Biological Processes ◽  
Energy Sustainability ◽  
Physical Chemical ◽  
Anaerobic Membrane Bioreactors ◽  
Unique Approach

A wastewater-treatment flowsheet was developed to integrate uniquely designed biological processes with physical-chemical unit processes, allowing conversion of the organic carbon in the wastewater to methane, the removal and recovery of phosphorus and nitrogen from the wastewater, and the production of water suitable for reuse. In the flowsheet, energy is derived from the wastewater by first shunting a large fraction of the organic carbon in the wastewater to a solids slurry which is treated via anaerobic digestion. The anaerobic digestion system consists of focused pulsed (FP) pretreatment coupled to anaerobic membrane bioreactors (MBRs). Computer modelling and simulation results are used to optimize design of the system. Energy generation from the system is maximized and costs are reduced by using modest levels of recycle flow from the anaerobic MBRs to the FP pretreatment step.

Treating municipal wastewater with the goal of resource recovery

2011 ◽  
Vol 63 (1) ◽  
pp. 25-31 ◽  
Author(s):  
P. M. Sutton ◽  
H. Melcer ◽  
O. J. Schraa ◽  
A. P. Togna
Keyword(s):  
Municipal Wastewater ◽  
Large Fraction ◽  
Treatment Plant ◽  
Membrane Bioreactors ◽  
Municipal Wastewater Treatment ◽  
Energy Sustainability ◽  
Capital Costs ◽  
Lower Treatment ◽  
Anaerobic Membrane Bioreactors ◽  
Aerobic And Anaerobic

A new municipal wastewater treatment flowsheet was developed with the objectives of energy sustainability, and water and nutrient recovery. Energy is derived by shunting a large fraction of the organic carbon in the wastewater to an anaerobic digestion system. Aerobic and anaerobic membrane bioreactors play a key role in energy recovery. Phosphorus and nitrogen are removed from the wastewater and recovered through physical-chemical processes. Computer modeling and simulation results together with energy balance calculations, imply the new flowsheet will result in a dramatic reduction in energy usage at lower treatment plant capital costs in comparison to conventional methods.

scholarly journals Correction: Design of anaerobic membrane bioreactors for the valorization of dilute organic carbon waste streams

2018 ◽  
Vol 11 (3) ◽  
pp. 716-716
Author(s):  
Brian D. Shoener ◽  
Cheng Zhong ◽  
Anthony D. Greiner ◽  
Wendell O. Khunjar ◽  
Pei-Ying Hong ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Membrane Bioreactors ◽  
Waste Streams ◽  
Anaerobic Membrane Bioreactors ◽  
Energy Environ

Correction for ‘Design of anaerobic membrane bioreactors for the valorization of dilute organic carbon waste streams’ by Brian D. Shoener et al., Energy Environ. Sci., 2016, 9, 1102–1112.

Fouling cake layer in a submerged anaerobic membrane bioreactor treating saline wastewaters: curse or a blessing?

2011 ◽  
Vol 63 (12) ◽  
pp. 2902-2908 ◽  
Author(s):  
I. Vyrides ◽  
D. C. Stuckey
Keyword(s):  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Large Fraction ◽  
Membrane Bioreactors ◽  
Extracellular Polysaccharides ◽  
Cake Layer ◽  
Anaerobic Membrane Bioreactors ◽  
Suspended Biomass ◽  
Microbial Products

The treatment of inhibitory (saline) wastewaters is known to produce considerable amounts of soluble microbial products (SMPs), and this has been implicated in membrane fouling; the fate of these SMPs was of considerable interest in this work. This study also investigated the contribution of SMPs to membrane fouling of the; (a) cake layer/biofilm layer, (b) the compounds below the biofilm/cake layer and strongly attached to the surface of the membrane, (c) the compounds in the inner pores of the membrane, and (d) the membrane. It was found that the cake/biofilm layer was the main reason for fouling of the membrane. Interestingly, the bacteria attached to the cake/biofilm layer showed higher biodegradation rates compared with the bacteria in suspension. Moreover, the bacteria attached to the cake layer showed higher amounts of attached extracellular polysaccharides (EPS) compared with the bacteria in suspension, possibly due to accumulation of the released EPS from suspended biomass in the cake/biofilm layer. Molecular weight (MW) analysis of the effluent and reactor bulk showed that the cake layer can retain a large fraction of the SMPs in the reactor and prevent them from being released into the effluent. Hence, while cake layers lead to lower fluxes in submerged anaerobic membrane bioreactors (SAMBRs), and hence higher costs, they can improve the quality of the reactor effluent.

Methane-driven microbial fuel cells recover energy and mitigate dissolved methane emissions from anaerobic effluents

2018 ◽  
Vol 4 (1) ◽  
pp. 67-79 ◽  
Author(s):  
Siming Chen ◽  
Adam L. Smith
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Large Fraction ◽  
Anaerobic Treatment ◽  
Membrane Bioreactors ◽  
Ghg Emission ◽  
Dissolved Methane ◽  
Available Energy ◽  
Treatment Processes ◽  
Anaerobic Membrane Bioreactors

The effluents of mainstream anaerobic treatment processes such as anaerobic membrane bioreactors (AnMBRs) contain dissolved methane that represents a large fraction of the available energy (approximately 50% at 15 °C) and a significant greenhouse gas (GHG) emission if released to the atmosphere.

CFD for wastewater treatment: an overview

2016 ◽  
Vol 74 (3) ◽  
pp. 549-563 ◽  
Author(s):  
R. W. Samstag ◽  
J. J. Ducoste ◽  
A. Griborio ◽  
I. Nopens ◽  
D. J. Batstone ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
High Frequency ◽  
Biological Processes ◽  
Physical Chemical ◽  
Wide Range ◽  
Multiphase Systems ◽  
Flow Splitting ◽  
Computational Fluid Dynamics Cfd ◽  
Almost All

Computational fluid dynamics (CFD) is a rapidly emerging field in wastewater treatment (WWT), with application to almost all unit processes. This paper provides an overview of CFD applied to a wide range of unit processes in water and WWT from hydraulic elements like flow splitting to physical, chemical and biological processes like suspended growth nutrient removal and anaerobic digestion. The paper's focus is on articulating the state of practice and research and development needs. The level of CFD's capability varies between different process units, with a high frequency of application in the areas of final sedimentation, activated sludge basin modelling and disinfection, and greater needs in primary sedimentation and anaerobic digestion. While approaches are comprehensive, generally capable of incorporating non-Newtonian fluids, multiphase systems and biokinetics, they are not broad, and further work should be done to address the diversity of process designs. Many units have not been addressed to date. Further needs are identified throughout, but common requirements include improved particle aggregation and breakup (flocculation), and improved coupling of biology and hydraulics.

scholarly journals Design of anaerobic membrane bioreactors for the valorization of dilute organic carbon waste streams

2016 ◽  
Vol 9 (3) ◽  
pp. 1102-1112 ◽  
Author(s):  
Brian D. Shoener ◽  
Cheng Zhong ◽  
Anthony D. Greiner ◽  
Wendell O. Khunjar ◽  
Pei-Ying Hong ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Membrane Bioreactors ◽  
Human Metabolism ◽  
Waste Streams ◽  
Aqueous Waste ◽  
Anaerobic Membrane Bioreactors

Aqueous waste organics are an abundant resource generated continuously by industry and human metabolism.

A review of anaerobic membrane bioreactors for municipal wastewater treatment with a focus on multicomponent biogas and membrane fouling control

2020 ◽  
Vol 6 (10) ◽  
pp. 2641-2663
Author(s):  
Yisong Hu ◽  
Hui Cheng ◽  
Jiayuan Ji ◽  
Yu-You Li
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Membrane Fouling ◽  
Membrane Bioreactor ◽  
Municipal Wastewater ◽  
Membrane Bioreactors ◽  
Viable Alternative ◽  
Municipal Wastewater Treatment ◽  
Fouling Control ◽  
Anaerobic Membrane Bioreactors

Among the various anaerobic digestion technologies developed for wastewater treatment and resource recovery, the anaerobic membrane bioreactor (AnMBR) stands out as a viable alternative to traditional processes.

From Beer to Nuts: Recovering Energy from Brewery Waste Streams with Anaerobic Membrane Bioreactors

2015 ◽  
Vol 2015 (19) ◽  
pp. 4868-4897
Author(s):  
Tim Rynders ◽  
Rick Molongoski ◽  
Mark Fischer ◽  
Brandon Weaver ◽  
Martha Dagnew ◽  
...  
Keyword(s):  
Membrane Bioreactors ◽  
Waste Streams ◽  
Anaerobic Membrane Bioreactors

Temperature and immigration effects on quorum sensing in the biofilms of anaerobic membrane bioreactors

2021 ◽  
Vol 293 ◽  
pp. 112947
Author(s):  
Shamas Tabraiz ◽  
Evangelos Petropoulos ◽  
Burhan Shamurad ◽  
Marcos Quintela-Baluja ◽  
Sanjeeb Mohapatra ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Membrane Bioreactors ◽  
Anaerobic Membrane Bioreactors
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