Harmful algae and their potential impacts on desalination operations off southern California

Caron, David A.; Garneau, Marie‐Ève; Seubert, Erica L.; Howard, Meredith D.A.; Darjany, Lindsay; Schnetzer, Astrid; Cetinić, Ivona; Filteau, Gerry; Lauri, Phil; Jones, Burton H.; Trussell, Shane

doi:10.1016/j.watres.2009.06.051

Cited by 132 publications

(96 citation statements)

References 227 publications

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“…Under culture conditions, cellular DA concentrations reach up to 140 pg cell −1 in the highly toxic P. multiseries ( Trainer et al 2012), depending on cell size, species, and growth conditions; in the field, cellular DA concentrations reach up to 117 pg cell −1 in P. australis and P. cuspidata (Caron et al 2010). Furthermore, due to bioaccumulation, DA concentrations up to 3,100 µg g −1 tissue have been measured in scallops (Placopecten magellanicus Gmelin; reviewed in Landsberg (2002)).…”

Section: Checks Of Primer Universality and Specificitymentioning

confidence: 99%

An attempt to semi-quantify potentially toxic diatoms of the genus <i>Pseudo-nitzschia</i> in Tokyo Bay, Japan by using massively parallel sequencing technology

Nagai¹,

Urusizaki²,

Hongo³

et al. 2017

Plankton Benthos Res

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Currently, no tool is available that precisely identifies and quantifies all 48 species of Pseudo-nitzschia simultaneously. In the present study, we used massively parallel sequencing-based technology with genus-specific Pseudo-nitzschia primers to investigate the distribution and population dynamics of the genus in Tokyo Bay, Japan. Furthermore, we attempted to quantify the abundance of each species using both relative abundance data detected in the massively parallel sequencing-based survey, and cell count data, obtained by light microscopy. Several species of Pseudo-nitzschia were detected continuously from July 10 to September 9, 2016 in the sampling location. Cell densities ranged from 2-300 cells mL −1 (sample no.=10). Fourteen operational taxonomic units (OTUs) attributable to Pseudonitzschia were detected, and 99.9% of sequences detected by massively parallel sequencing belonged to the genus. Each of the most abundant OTUs comprised a single species, and were identified, in decreasing order of abundance, as P. multistriata (Takano) Takano, P. pungens (Grunow ex Cleve) Hasle, P. fraudulenta (Cleve) Hasle, P. multiseries (Hasle) Hasle, and P. galaxiae Lundholm & Moestrup. Species identification was possible in 9 of the 14 OTUs detected, of which several were detected in Tokyo Bay for the first time. The cell abundance ranges of the five most abundant species were estimated as 1, 976-246,395, 0.03-52,999, 5-42,820, 4-24,617, and 0.03-1,007 cells L −1 , respectively. The detection limit was 0.03 cells L −1.

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Section: Checks Of Primer Universality and Specificitymentioning

confidence: 99%

An attempt to semi-quantify potentially toxic diatoms of the genus <i>Pseudo-nitzschia</i> in Tokyo Bay, Japan by using massively parallel sequencing technology

Nagai¹,

Urusizaki²,

Hongo³

et al. 2017

Plankton Benthos Res

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“…The "revised paradigm" is illustrated and explained in detail in Figure 3. Caron et al (2010) identified two potential impacts of (harmful) algal blooms on SWRO desalination facilities, 1) Significant treatment challenge to ensure the SWRO system is effectively removing algal toxins from seawater;…”

Section: Transparent Exopolymer Particles (Tep)mentioning

confidence: 99%

“…: Tenzer et al, 1999;Pearce et al, 2004;Petry et al, 2007;Pankratz, 2008;Caron et al, 2010;Richlen et al, 2010;Schurer et al, 2013;Pankratz, 2013). RO plant location map processed by N. Dhakal with plant coordinates from DesalData (2014).…”

Section: Strategies To Control Operational Issues In Swro Plants Durimentioning

confidence: 99%

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Seawater reverse osmosis desalination and (harmful) algal blooms

et al. 2015

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“…The increasing frequency and severity of harmful marine algal blooms (HABs), has posed a serious threat to full-scale SWRO desalination facilities operating worldwide [8][9][10]. Caron and co-workers [11] acknowledged two important impacts of HABs on desalination facilities: (1) complete removal of algal toxins; (2) increased demand on pretreatment for membrane fouling prevention. Besides the elevated biomass, algal blooms also contribute to excess organic matter and transparent exopolymer particles (TEP) that intensify the biofouling potential of SWRO membranes [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Algal Biotoxin Removal during SWRO Desalination through a Materials Flow Analysis

Manheim

Jiang

2017

Water

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Abstract:The operation of seawater reverse osmosis (SWRO) desalination facilities has become challenged by the increasing frequency and severity of harmful algal blooms (HABs). The efficiency of algal toxins removal during SWRO and pretreatment processes has critical human health implications. Therefore, a probabilistic materials flow analysis (pMFA) was developed to predict the removal of algal toxins in source water by various pretreatment configurations and operations during SWRO desalination. The results demonstrated that an appreciable quantity of toxins exists in the SWRO permeate (ng/L-µg/L levels), the backwash of pretreatment, and final brine rejects (µg/L-mg/L levels). Varying the pretreatment train configuration resulted in statistically significant differences in toxin removals, where higher removal efficiencies were evidenced in systems employing microfiltration/ultrafiltration (MF/UF) over granular media filtration (GMF). However, this performance depended on operational practices including coagulant addition and transmembrane pressures of MF/UF systems. Acute human health risks during lifetime exposure to algal toxins from ingestion of desalinated water were benign, with margins of safety ranging from 100 to 4000. This study highlights the importance of pretreatment steps during SWRO operation in the removal of algal toxins for managing marine HABs.

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Harmful algae and their potential impacts on desalination operations off southern California

Cited by 132 publications

References 227 publications

An attempt to semi-quantify potentially toxic diatoms of the genus <i>Pseudo-nitzschia</i> in Tokyo Bay, Japan by using massively parallel sequencing technology

An attempt to semi-quantify potentially toxic diatoms of the genus <i>Pseudo-nitzschia</i> in Tokyo Bay, Japan by using massively parallel sequencing technology

Seawater reverse osmosis desalination and (harmful) algal blooms

Investigation of Algal Biotoxin Removal during SWRO Desalination through a Materials Flow Analysis

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