Presentations by Holly Shorney-Darby
Matches: 9
Ceramic Membrane Filtration of a Surface Water Treated with Ion Exchange
Pilot-scale trials of four different pre-treatments to ceramic membranes were performed for a surface water in southwest England. A study of the organic character of the feed and treated provided an indication of which fraction of organics was contributing to fouling. The large molecular weight organics contributed to fouling when ion exchange was...
Ceramic microfiltration for treating secondary wastewater effluent: influence of pre-treatment on the operational performance
The use of ceramic MF was evaluated for a secondary wastewater effluent was done with no oxidant, chlorine and ozone as pretreatment and with in-line coagulation. Coagulation was required for effective control of organic fouling of the membrane. Ozone with coagulant was effective for operations but ozone cost could be prohibitive....
Ceramic Membrane Pilot Testing on Lake Michigan
This paper presents the results from a twelve-month pilot study using ceramic membranes on Lake Michigan water in a sustainable manner with a flux of 103 gfd (175 lmh), with chlorinated and acidic chemically enhanced backwashes, and with pre-treatment with polyaluminum chloride coagulation. They estimate that the cleaning interval could be up to 10...
Pilot Evaluation of Ion Exchange, Coagulation and Ceramic MF for Treating Surface Water at South West Water, UK
This paper describes a process comprised of ion exchange, in-line coagulation and ceramic microfiltration (MF) tested for treating surface waters in southwest England. The membrane could operate at the nominal flux of 109 lmh. The process handled abrupt water quality changes by adjusting the coagulant dosage and with the normal course of backwashes...
Ceramic Membranes for Reuse
Ceramic membranes are being considered for reuse applications due to their durability and the ability to use strong chemicals to clean the membranes. Some pilot evaluations of different pre-treatments to ceramic membranes have been completed, and more are underway. It is clear that membranes can perform well when the pre-treatment is optimized. Thi...
ILCA: In-Line Coagulation and Absorption for Pre-Treatment to Ceramic Microfiltration
This paper focuses on pre-treatment with coagulation upstream of ceramic microfiltration for treating surface water on a pilot-scale in Andijk, the Netherlands. Two coagulation systems, i.e., a conventional coagulation/flocculation system and an in-line coagulation absorber (ILCA) are compared....
Pre- and Post-Membrane Treatment Challenges Caused by NOM
Natural organic matter (NOM) impacts membrane treatment, and is an important water quality parameter throughout the water process treatment train. This paper highlights considerations for NOM control in pre- and post-membrane processes....
Starting up 300 MLD Capacity of Ceramic Microfiltration at Three International Plants in 2018
This abstracts focus on the construction works and commissioning of three international drinking water plants, that will feature PWNT?s technologies: Choa Chu Kang waterworks (CCKWW) of Singapore?s National Water Agency PUB, South West Water?s Mayflower water treatment works in Plymouth, United Kingdom and Sonnenberg water treatment plant of ewl en...