Presentations by P.E
Matches: 22
Retrofitting Media Filters with Immersed Ultrafiltration Membranes for Thornton, CO
Paper summarizes the largest retrofit of conventional granular media filters with low pressure membranes in the world. City of Thornton, CO, conducted pilot testing of five microfiltration MF) or ultrafiltration (MF) membrane systems for a retrofit of membranes into a conventional granular media surface water treatment plant. Subsequently a UF sys...
Examples of Pressure-Based Testing by Membrane Manufacturers
The presentation describes GE's approach to complying with the guidance provided in the USEPA membrane guidance manual as part of the Long Term 2 Enhanced Surface Water Treatment Rule (LT2). The presentation provides details of GE W&PT's approach to direct integrity testing and information on flow regime, ALCR, VCF and contact angle specific to GE...
VA Plant Case Studies - GE/Zenon Facilities
This PowerPoint presentation reviews the General Electric ultrafiltration and membrane bioreactor facilities in Virginia and the surrounding area....
Immersed vs. Pressure for Low Pressure Membranes, A Manufacturers Perspective
This PowerPoint gives GE's perspective on Immersed vs. Pressurized for Low Pressure Membranes....
Lakeview OBM2 and Lorne Park WTPs
The presentation will include an introduction and overview of the Region of Peel's water treatment plants. Over the past decade the two treatment plants have expanded from a combined capacity of 850 to 1,700 ML/d and added membranes, ozone, biological filtration and UV....
Organics Removal by Integrating UF and NF Membranes to a Conventional Water Treatment Plant
This paper describes the water quality challenges, bench-scale and pilot-scale tests, upgrade process selection criteria, economic evaluation of upgrade options and construction implementation while keeping the current WTP in service and incorporating it into the upgraded facility....
Produced Water Treatment in the Alberta Oilsands
The Athabasca Oil Sands, located in Alberta, contain the third largest oil deposit in the world. Steam Assisted Gravity Drainage (SAGD) is used for in situ recovery of the oil. There are several existing membrane applications used to treat produced water and many more in development. This paper discusses tailings water treatment, de-oiling initi...
Biological Pretreatment of RO Membranes for Surface Water Treatment
This paper describes the integrated biological/RO membrane treatment process, benefits of chemical free treatment on sustainable RO membrane operations for removing very high levels of dissolved organics (>20 mg/L DOC), assessment of upgrade options and construction approach/challenges in staging the construction activities while continuing potable...
The Challenges of Defining QCRV for Fully Integral UF/MF Membranes
The paper will provide a detailed explanation of the concerns highlighted above, including actual manufacturing data and challenge test results. The objective is that the paper will provide an opportunity for industry peers to contribute, and ultimately to generate a work that can act as an augmentation to the MFGM....
How an algae event took down a water treatment plant and the teamwork that saved it
This article reviews some of the unique steps taken to maintain enough ultrafiltration plant capacity to meet demand, including an untested alternate temporary raw water header, temporary 1 mm raw water screens, and middle of the night SCADA programming changes. The plant successfully operated for eight days under these conditions while emergency ...
Biological Pre-treatment for RO membranes - 10 Years and Counting
The intent of the paper is to provide an overall picture demonstrating the success of a biological filtration process, over the past eleven years, as a proven application for pretreating poor quality groundwater in small system membrane water treatment plants. This information will provide designers and owners with real project examples summarizin...
Maximizing the Value of Your Treatment Expansion Through Integrated Design and Project Delivery
This paper presents streamlined and proactive approaches to reduce capital costs while maximizing the value of a membrane water treatment expansions to rate payers....
Using Membrane Technology to Treat a unique combination of industrial and municipal Wastewater
Challenges of blending industrial and municipal wastewaters. Selection process is discussed as is operational performance data....
Water Reuse in Remote Work Camps
This paper discusses how remote work camps (semi-permanent accommodations located near resource exploration and extraction activities) are well suited for wastewater reuse and how to address the specific challenges that arise in this market. A case study is presented summarizing how wastewater reuse was implemented on a specific project and the im...
Membrane Upgrades to Address Aging Water Treatment Infrastructure Challenges in a Small System
Deteriorating water treatment infrastructure and high levels of organics in the raw water created challenges for the Village of Hines Creek in satisfying ESRD?s more stringent treated water quality standards. An assessment of the facility identified major process components that needed upgrades including pre-treatment/sedimentation, filtration, and...
Oxford MBR Membrane Longevity: How Many More Years?
A portion of the London Ontario Oxford Pollution control plant was retrofited from conventional activated sludge to a membrane bioreactor (MBR) plant. Key operating and design factors for membrane life are variations in feed flows and fluxes. Mixed Liquor Suspended Solids (MLSS) have practical limits to maintain membrane life....
Implementing an Integrated Membrane System For CRWC - Headingley WTP
Cartier Regional Water Headingly WTP in Canada makes potable water from a river surface water source using ultrafiltration (UF) and reverse osmosis (RO). This is an Integrated Membrane System (IMS). Removal of Natural Organic Matter (NOM) is important for taste and oder control....
Fighting permeability loss with a revised recovery cleaning schedule
This paper analyses the impact of a revised cleaning schedule based on the permeability of the membranes and the financial impact of increased chemical usage. A side-by-side comparison was conducted on the trains using the original cleaning schedule versus a revised schedule. The process data showed that if the plant had continued following a norm...
Back to the Future: Achieving Membrane Quality Water With Granular Media Filter Simplicity
This paper focuses on a novel technology, blending the high-treated water quality of a membrane with the simplicity of a granular media filter. This ?MGF? technology is a direct replacement for filter media and underdrains inside the filter box and operates in gravity mode, using the existing hydraulic profile. Unlike immersed membrane filtration, ...
Membrane Technology Assessment Program (MTAP) at NAIT?s Centre for Oil Sands Sustainability
Northern Alberta Institute of Technology?s (NAIT) Centre for Oil Sands Sustainability (COSS), Canada?s Oil Sands Innovation Alliance (COSIA) and Canada?s Western Economic Diversification (WED) are collaborating on a Membrane Technology Assessment Program (MTAP) that includes the construction of a laboratory pilot scale High Temperature/Pressure Mem...
Boil water advisory, algae and organics: Membrane Technology for rescue
This presentation describes the upgrade pathway of a small indigenous community water treatment facility that was not meeting the water quality standards. This includes process selection, side-by-side pilot testing to assess the need for pre-treatment, economic and non-economic evaluation that assisted in identifying a sound upgrade strategy with m...
Rethinking Integrity: Turbidity as a Direct Integrity Test for Low Pressure MF/UF Membranes, Challenges and Future Potential
Turbidity has been a key parameter for monitoring filtered water quality due to its simplicity and reproducibility. Conventional filters integrity has historically been regulated based on the effluent turbidity unlike membranes which has been regulated based on direct integrity testing such as the pressure decay testing. These direct integrity test...