Presentations by Mike Snodgrass
Matches: 15
Various Wastewater Recycling Methods Using Submerged Membrane Systems
This paper explores three different membrane-based processes for the treatment of domestic wastewater tertiary filtration from conventional activated sludge (CAS), immersed membrane activated sludge (IMAS), and a fixed film bioreactor followed by membranes. All three membrane processes utilize a submerged, spiral wound membrane system. The unique c...
Reuse of Industrial Wastewater Contaminated with Heavy Metals
The upgrade of an airplane parts manufacturing wastewater treatment plant is presented. The objective of the upgrade was to provide greater that 75% reduction in water use. The plant contains heavy metals from metal cutting, cleaning and plating operations. A combined submerged UF nad RO treament system was used to meet the treatment obectives....
Managing Peak Flows in Membrane Bioreactors (MBR)
A peak flow management process using ultrafiltration (UF) membranes was developed to operate in conjunction with MBR systems....
SFMP + MBR = <$ FOR >3Q CHANGING THE CALCULUS OF WWT & REUSE
Effective use of stormflow management process + MBR to overcome previous MBR limitations....
It Costs How Much? How MBR Economics are Changing the Game
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...
Overview of MBR Processes
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...
One MBR, 15 Years of Innovation
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...
Overview of MBR Processes
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...
Blame it on the Rain - The Challenge of Treating Storm Flows
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...
Silicon Carbide Membrane in Municipal Water & Wastewater Applications
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...
Don't Let Chemical Cleaning Dictate Membrane Life
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...
Don't Let Chemical Cleaning Dictate Membrane Life
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...