This presentation provides an overview of membranes used for thickening in aerobic digestion process. The benefits include: superior thickening without use of polymers; require very minimal operator attention; permeate can be sent to disinfection or to the head of the plant; and result in savings on hauling, operating, and energy costs....

This PowerPoint discusses the total cost of Ownership of a waste water treatment facility to optimizing Membrane Bioreactor (MBR) Energy and Operating Expenses...

This presentation discusses methods for improving flat sheet membrane bioreactor (MBR) performance and reliability. The topics discussed include peak storm flow management, oxygen transfer, and membrane cleaning. The presentation concludes with a summary of capital expenditure and net present worth data for MBR systems....

MBR technology has become more accessible as costs have come down and issues have been addressed. Several recent surveys have been used to prioritize technological and application challenges. Innovations in four areas suggest the rapid growth trend will continue with installed capacity increasing from an estimated 0.7 BGD to 2.6 BGD in 2026. Top...

This paper describes the Digestivore process, a new development that functions as a sludge handling system and also provides ammonia treatment of side streams at wastewater treatment plants. The Digestivore process is a very versatile and robust technology that features an aerobic digestion process utilizing flat plate membranes for thickening was...

Effective use of stormflow management process + MBR to overcome previous MBR limitations....

This presentation illustrates the benefits realized from coarse and fine screening for both conventional and membrane facilities. It outlines the pros and cons of screen types and models, and the screening panels, drives, and seals that provide positive and negative features of each as it pertains to capture efficiencies, maintenance, and space r...

With over 600 permitted installations in the United States treating upwards of 1 billion gallons per day (BGD), membrane bioreactors (MBRs) are playing an increasingly vital role in water conservation. While many new wastewater treatment plants (WWTPs) are constructed every year, the majority of MBR projects involve the 3 Rs; water reuse, the retr...

This paper describes the experience of the La Center WWTP plant upgrade to MBR and reinforces the notion that MBR technology is cost competitive with conventional approaches for wastewater treatment. MBR?s higher-than-conventional MLSS concentration presents users with a unique opportunity to substantially reduce biosolids generation. The flexibili...

This presentation will discuss the Canton, OH MBR system as a case study for increasing capacity and performance using best available technology (BAT). MBR technology was selected based on the ability to meet tighter nitrogen and phosphorus effluent performance limits while also increasing the capacity from a design flow of 28 MGD and 42 MGD. Exi...

Membrane bioreactor systems can actually provide an affordable, simple-to-use solution to new or existing facilities facing environmental, regulatory and/or budgetary challenges. In addition to high quality of effluent, Membrane Bioreactor (MBR) technology has proven to offer great advantages: MBR technology drastically reduces system footprint re...

Membrane bioreactor (MBR) technology is well positioned to play a critical role in wastewater and reuse applications, both domestically and internationally. Technological advances over the past 10 years have brought MBR costs down dramatically and no other wastewater treatment process is as efficient and effective. From retrofits to decentralized...

The Running Springs Water District (RSWD), which serves the communities of Running Springs, Arrowbear, and County Service Area 79 in the San Bernardino Mountains, currently operates a 1.0 MGD membrane bio-reactor (MBR). The facility, as it stands today, hardly resembles the original MBR plant first commissioned back in 2003. With a constant focus o...

Membrane bioreactors (MBRs) are used in a wide variety of wastewater applications, including both municipal and industrial. MBRs are unique in that it consists of several subsystems that must work harmoniously together to ensure a successful operating system. The needs and requirements of a particular wastewater treatment project will drive the d...

Storm driven wastewater flows create a very unique wastewater treatment challenge as the generate extremely rates of flow in a short period of time. Whether it be inflow & infiltration (IandI) or combined sewer, rain events have always been a challenge for all types of wastewater treatment plants. A plant's ability to treat storm flows has always...

Ceramic membranes have been around for quite some time, but the technology has often been cost prohibitive for many applications and markets. In the case of sludge thickening, the higher cost per square foot of membrane for ceramic is often offset by the potential gains in achieving sustainable operation at higher percent solids. Ceramic membrane...

There have been several projects throughout the country, where engineers after thorough evaluation including capital cost, operating cost and Net Present Worth over 20 yrs have selected MBR technology over conventional technologies for wastewater treatment. While this is observed for several greenfield projects, it is almost a no-brainer when it co...

This presentation reviewed the current state of Membrane Bioreactors (MBR) in the United States. The paper discusses MBR trends and reviews issues around clogging. There is a section on silicon carbide membranes and hybrid polymeric technology....

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Water and Wastewater Membranes need to be protected against fibrous debris that not only create excessive membrane cleaning cycles and labor intensity, but too often abrade & damage the membrane surfaces, as well as clog the aeration manifolds that scour the membranes. Pre-Screening has become extremely important in protecting both membrane warrant...

The application of silicon carbide (SiC) membranes in municipal wastewater applications has been growing rapidly over the past couple of years. With numerous key performance and operational advantages, SiC membranes have demonstrated competitive life cycle cost evaluations with polymeric membranes despite having higher capital costs. SiC has been...

Single-stage MBR technology is designed and engineered to be extremely simple to operate and optimize. This single-stage process uses one set of blowers to provide mixing, air scouring and process oxygen. Biologically treated wastewater is filtered using Silicon Carbide (SiC) membranes to produce reuse quality effluent with no recycle, no mechanic...

Membrane life is one of the biggest drivers in life cycle costs for any membrane-based water or wastewater treatment plant. The math is very simple: short membrane life drives costs up, long membrane life drives costs down. Shorter than expected membrane life not only increase life cycle costs, but it also generates an underserving negative percept...

Membrane life is one of the biggest drivers in life cycle costs for any membrane-based water or wastewater treatment plant. The math is very simple: short membrane life drives costs up, long membrane life drives costs down. Shorter than expected membrane life not only increase life cycle costs, but it also generates an underserving negative percept...

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