Membranes for Industrial Water Reuse – They're Not Just for Municipal Applications Anymore

Cummings, Gregg; Frenkel, Val S.

doi:10.2175/193864707787781692

Cited by 4 publications

(3 citation statements)

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“…However, also, much lower energy consumption values for CAS systems are reported. The CAS energy demand, expressed per volume of treated wastewater, widely ranges, being 0.1-0.2 kWh/m^ (Gnirss & Dittrich 2000), 0.2-0.3 kWh/m^ (Ueda et al 1996), 0.3 kWh/m^ (Yang et al 2010), 0.4 kWh/m' , 0.5 kWh/m' (Judd 2006), 0.4-0.6 kWh/m ( Cornel et al 2003) and 0.9-2.9 kWh/m'' for industrial applications (Cummings & Frenkel 2008).…”

Section: Conventional Activated Sludge Systems Vs Membrane Bioreactorsmentioning

confidence: 99%

Specific energy consumption of membrane bioreactor (MBR) for sewage treatment

Krzemiński

Graaf²,

Lier

2012

Water Science and Technology

165

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This paper provides an overview of current electric energy consumption of full-scale municipal MBR installations based on literature review and case studies. Energy requirements of several MBRs were linked to operational parameters and reactor performance. Total and specific energy consumption data were analysed on a long-term basis with special attention given to treated flow, design capacity, membrane area and effluent quality. The specific energy consumption of an MBR system is dependent on many factors, such as system design and layout, volume of treated flow, membrane utilization and operational strategy. Operation at optimal flow conditions results in a low specific energy consumption and energy efficient process. Energy consumption of membrane related modules was in the range of 0.5-0.7 kWh/m(3) and specific energy consumption for membrane aeration in flat sheet (FS) was 33-37% higher than in a hollow fibre (HF) system. Aeration is a major energy consumer, often exceeding 50% share of total energy consumption. In consequence, coarse bubble aeration applied for continuous membrane cleaning remains the main target for energy saving actions. Also, a certain potential for energy optimization without immediate danger of affecting the quality of the produced effluent was observed.

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Section: Conventional Activated Sludge Systems Vs Membrane Bioreactorsmentioning

confidence: 99%

Specific energy consumption of membrane bioreactor (MBR) for sewage treatment

Krzemiński

Graaf²,

Lier

2012

Water Science and Technology

165

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“…Membrane technology is widely used for various treatment and reuse applications. Over the last few years membranes have become recognised as one of the preferred treatment technologies for both municipal and industrial water treatment sectors [1]. An example of such technology is the membrane bioreactor (MBR) process.…”

Section: Introductionmentioning

confidence: 99%

Flat sheet or hollow fibre — comparison of full-scale membrane bio-reactor configurations

Krzemiński

Gil

Nieuwenhuijzen³

et al. 2012

Desalination and Water Treatment

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A B S T R AC TMembrane bioreactors (MBRs) are widely used for wastewater treatment and reuse applications. Selection of a membrane confi guration is a crucial step in the design process and has a high impact on further plant operations. Despite increasing experience with full-scale applications, practical knowledge concerning the impact of different membrane confi gurations on process performance and operational costs is still lacking. This paper provides full scale MBR performance data comparing the use of fl at sheet and hollow fi bre membranes and analyses the consequences on operation, performance and treatment effi ciency. Hollow fi bre confi gurations, comparing to the fl at sheet, are designed for higher fl uxes, operated at lower concentrations, cleaned more often and protected by stricter pre-treatment. Filterability of activated sludge from municipal MBRs is better than from industrial MBRs and does not depend on membrane confi guration. The energy consumption depends more on the infl uent type than on the membrane confi guration.

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“…Membrane bioreactors (MBRs), which consist of an activated sludge process and a membrane filtration system (MFS), offer several benefits which have led to their widespread application in the treatment of municipal and industrial wastewater (Cummings & Frenkel, 2008). MBR technology allows for greater flexibility in both design and operation, as they are compatible with a broad range of process configurations, physical layouts, influent characteristics, operating conditions and control strategies (Pellegrin et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Lessons Learned During Startup, Testing and Optimization of MBR Systems for Enhanced Nutrient Removal

Maillard¹,

Perri²,

VerNooy³

2013

proc water environ fed

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Membrane bioreactors (MBRs) are known for producing high quality effluent from wastewater treatment facilities in order to meet stringent regulatory requirements (Fleischer et al., 2005), accommodate growth (Vadiveloo & Cisterna, 2008), provide opportunities for water reuse (Schmidt et al., 2011), and achieve other operational goals for various municipalities, utilities and industries (Cummings & Frenkel, 2008). The process of testing, starting up and optimizing an MBR process for enhanced nutrient removal at the end of a construction project is often overlooked. Even a well-designed MBR can fail to meet expectations if the system is not properly configured during the startup phase, making this a critical step in any successful implementation of membrane technology. The startup phase of two municipal MBR plants were compared to demonstrate the importance of various strategies for initial process optimization, with a focus on lessons learned, techniques and performance expectations that can be applied to future projects.

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Membranes for Industrial Water Reuse – They're Not Just for Municipal Applications Anymore

Cited by 4 publications

References 0 publications

Specific energy consumption of membrane bioreactor (MBR) for sewage treatment

Specific energy consumption of membrane bioreactor (MBR) for sewage treatment

Flat sheet or hollow fibre — comparison of full-scale membrane bio-reactor configurations

Lessons Learned During Startup, Testing and Optimization of MBR Systems for Enhanced Nutrient Removal

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