This presentation discusses the conversion of the City of Allegan Water Plant from a lime softening facility to a reverse osmosis (RO) facility for the treatment of groundwater. The presentation begins with a description of the alternatives evaluation, facility planning, and funding mechanisms for the water plant. Next the pretreatment and RO proce...

This presentation discusses the development, testing, and applicability of green chemical cleaning and antiscalant products for reverse osmosis (RO) processes. The presentation begins with an overview of the goals of green chemical development which include the production of chemicals free of EDTA and phosphates. Testing procedures and results are ...

This presentation provides a general overview of terminology for low pressure (microfiltration/ultrafiltration) and high pressure (nanofiltration/reverse osmosis) membranes. The low pressure membrane discussion includes a description of log removal values and air integrity testing. Membrane materials for low pressure and high pressure membranes are...

This presentation discusses microfiltration (MF) and ultrafiltration (UF) membrane types, design parameters, raw water quality impacts, facility layout design, and system component design. The presentation begins with general terms and then transitions to design tips for pressure and submerged systems inclusive of equipment layout, pumps, piping, a...

This presentation discusses turbocharger energy recovery devices for reverse osmosis (RO) processes. Topics include general energy recovery theory, system control and optimization, operation, and equipment troubleshooting. The presentation concludes with a discussion on flux balancing and provides an energy cost evaluation that compares interstage ...

This presentation documents the history of membrane filtration in the Great Lakes region. Microfiltration (MF) process data from the Marquette and Kenosha membrane filtration plants are also presented. The presentation concludes with recommended design considerations and operating practices for the treatment of Great Lakes surface water....

This presentation discusses the conversion of the City of New Baltimore Water Treatment Plant (WTP) from conventional surface water treatment to membrane filtration. The presentation begins with a discussion of the drivers for upgrading and expanding the WTP along with a history of the facility. Next, the water treatment processes are presented alo...

This presentation discusses the evolution of the microfiltration (MF) and ultrafiltration (UF) membrane market, standardization in membrane module design and process operations, and the universal rack concept. MF and UF manufacturers are listed and module interchangeability between manufacturers is discussed. The presentation concludes with a summa...

This presentation provides options for and challenges to reverse osmosis (RO) concentrate disposal in the State of Michigan. Concentrate disposal options presented include sanitary sewer discharge, surface water discharge, and deepwell injection. Regulatory requirements, such as NPDES permits, are also discussed....

This presentation discusses regulatory considerations for the State of Michigan related to microfiltration (MF) and ultrafiltration (UF) membranes. Pilot study requirements are provided along with a listing of pathogen credits granted to UF membranes. The presentation concludes with membrane process design and operational considerations....

This presentation discusses the mission, history, and capabilities of NSF International. The presentation incudes a listing of accreditations, certifications, and focus areas. A list of water and wastewater standards is also provided....

This presentation focuses on membrane technologies currently under development for commercial use. Technologies presented include forward osmosis, nanotechnology, Pressure Retarded Osmosis, Closed Circuit Desalination, and membrane distillation. The presentation concludes with a discussion of industry trends and predictions for membrane growth area...

This presentation discusses the water and wastewater treatment plants at the Saganing Eagles Landing Casino in Standish, Michigan. The presentation includes an overview of treatment infrastructure including an ultrafiltration (UF) membrane system at the water treatment plant and a membrane bioreactor (MBR) at the wastewater treatment plant (WWTP). ...

This presentation documents the planning, design, and construction of the Paulding Water Treatment Plant in Paulding, Ohio. Treatment goals for the new facility included the reduction of total organic carbon (TOC) and hardness concentrations. The presentation provides pilot study results for ion exchange, ultrafiltration (UF), and nanofiltration (N...

The presentation begins with a discussion on fundamental desalting concepts and the influence of salinity on operating pressures for brackish and seawater systems. Typical operation and maintenance costs are also provided. The presentation concludes with a discussion on membrane fouling and pretreatment options....