Presentations by Associated Engineering
Matches: 6
Are your membranes going downhill? Integrating an Ultrafiltration Plant into a Gravity Water Supply System
This paper describes the design and pilot work for the Nanaimo South Fork Water Treatment Plant on Vancouver Island, British Columbia, Canada. The raw water is very flashy with frequent, short spikes in turbidity, organics, and colour. Submerged membranes minimize hydraulic losses across the plant and secondary membranes are used to treat the bac...
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....
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...
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...
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...
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...