Closed Circuit Reverse Osmosis – A Dynamic, Decoupled & Data-Driven RO Solution
CCRO has emerged as the industry leader in high recovery, high reliabilty and flexible RO operation. The technology has been implemented in over a dozen industries and applications across the globe with system sizes ranging from 10 gpm to over 10 MGD. In this presentation, we’ll review the performance of three (3) of the 250+ […]
Upgrading a Drinking Water Membrane Plant with Ceramic Membranes
Membrane treatment plants represent efficient and effective means of treating various source waters. Microfiltration (MF) and ultrafiltration (UF) membranes are capable of removing particulate, bacteria and some viruses. When membrane plants run well, water quality is consistent, production capacity is dependable, and consumers can count on water that is safe for use. Polymeric membrane filtration […]
Overview of Pretreatment for Membrane Technologies
Introduction to Membrane Treatment
This presentation will introduce the spectrum of membranes used in home, municipal, and industrial applications. The membranes types will be reverse osmosis, nanofiltration, ultrafiltration, microfiltration, and membrane bioreactors. We will highlight the attributes of each membrane type ranging from what is rejected to the pressures required to accomplish this rejection.
Membranes in the Midwest – Pilot Testing Considerations
This paper will present the basic considerations for setting up a pilot testing protocol for membrane applications on both groundwater and surface water. A description of the types of pilot units to be considered will be provided. Data on several mid-west pilot case studies will be presented.
Data Monitoring, Normalization and Membrane Cleaning
This 30 minute presentation will discusses the most effective procedures for membrane cleaning, and explains the role of high pH and low pH cleaning chemicals. As well as the value of normalized data
All Things End Cap Assembly
The end cap assembly is a critical component within the pressure vessel. Properly maintained and secured end caps reduce safety risks and concerns and ensure that the pressure vessel can continue to operate at full capacity with limited operational downtime. Instituting inspection and preventative maintenance of the end cap assembly will limit fluctuations of permeate […]
Upper Hocking Water Pollution Control Facility
Lancaster’s Upper Hocking WPCF is a novel membrane bioreactor treatment facility with a current rated capacity of 2 MGD and detailed design underway on an additional 2-MGD expansion. Following influent fine screening and biological treatment in a series of vertical loop reactors, mixed liquor enters one of three membrane tanks equipped with 0.1-micron hollow fiber […]
City of Lancaster South Water Plant Overview
This paper will provide an overview of the City of Lancaster’s South Water Treatment Plant. A description of the raw and finished water quality goals, high-level design criteria for each of the unit processes, unique features of the plant, and planned upgrades will be presented.
Designing MF/UF Systems for Low Maintenance: 10 Year’s Experience at Two North Dakota Installations
There is a tendency to to design ultrafiltration systems with as high a flux as possible to minimize capital costs without being too aggressive and making operation difficult. Another approach is to design conservatively with a low design flux, resulting in a higher capital cost but a lot lower maintenance membrane system. This presentation will […]
