Presentations by Gilbert Galjaard
Matches: 12
8 Years RO-Experience at WTP Heemskerk - Biofouling Aspects
This paper describes the biofouling aspects of a system that takes pre-treated IJssel Lake water subjected to an integrated membrane system (IMS) at surface water treatment plant Heemskerk. The plant combines the application of ultrafiltration (UF) and reverse osmosis (RO)....
SIX-Ceramic: New Pre-Treatment Techniques for Surface Water Treatment
MIEX, SIX, ECSF...
Ceramac-19 Demonstration Plant Ceramic Microfiltration at Choa Chu Kang Waterworks
The results of the optimization runs using settled water as feed show that membrane operation at flux of 200 Lmh can be sustained with stable transmembrane pressure (TMP) and permeability. After that, the effect on membrane operational performance is investigated when 0.5 mg/L residual ozone is applied to the feed of the membranes with interesting...
Ceramac - ceramic microfiltration as pretreatment technology for IJssel Lake water
An extensive pilot study of ceramic microfiltration (MF) in the Ceramac configuration for treating IJssel Lake water was conducted at a demonstration-scale. At a gross flux of 75 LMH, a backwash interval of 30 minutes, and a chemically enhanced backwash after the 11th backwash, a nearly constant specific flux of about 500 LMH/bar (corrected to a t...
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....
18 Years RO-Experience at WTP Heemskerk Biofouling Aspects
Improving Quality and Alternative Reuse Strategies for Effluent WWTP With Ceramic Membrane
In the recent years, a new advanced treatment train including ozonation and ceramic microfiltration has been piloted. This pilot study evaluates the impact of combined ion exchange and ozonation pre-treatment on the performance of ceramic microfiltration treating wastewater effluent for water re-use....