Download Algal Blooms and Membrane Based Desalination Technology by Loreen Ople Villacorte PDF

By Loreen Ople Villacorte

ISBN-10: 1138026263

ISBN-13: 9781138026261

Seawater desalination is speedily turning out to be by way of put in means (~80 million m3/day in 2013), plant dimension and worldwide software. An rising hazard to this expertise is the seasonal proliferation of microscopic algae in seawater referred to as algal blooms. Such blooms have prompted operational difficulties in seawater opposite osmosis (SWRO) vegetation because of clogging and bad effluent caliber of the pre-treatment procedure which ultimately compelled the shutdown of the plant to prevent irreversible fouling of downstream SWRO membranes. As extra additional huge SWRO vegetation (>500,000 m3/day) are anticipated to be developed within the coming years, widespread chemical cleansing (>1/year) of SWRO installations aren't possible, and extra trustworthy pre-treatment method should be required. to keep up solid operation in SWRO crops in the course of algal bloom classes, pre-treatment utilizing ultrafiltration (UF) membranes has been proposed.

This thesis addresses the impact of algal blooms at the operation of UF pre-treatment and SWRO. Experimental investigations established that marine algal blooms can impression the backwashability of UF and will speed up organic fouling in RO. in spite of the fact that, it's not likely that algae themselves are the most motives of fouling yet relatively the obvious exopolymer debris (TEPs) that they produce. to raised video display TEPs, a brand new procedure able to measuring TEP as small as 10 kDa used to be constructed and confirmed that TEPs will be successfully got rid of by means of UF pre-treatment sooner than SWRO. This paintings additionally confirmed that even supposing TEPs and different algal-derived fabric (AOM) are very sticky and will adhere to UF and RO membranes, adhesion will be a lot more desirable on membranes already fouled with AOM. furthermore, a version was once built to foretell the buildup of algal cells in capillary UF membranes which additional validated that the position of algal cells in UF fouling isn't as major as that of AOM and TEPs. 
Overall, this learn demonstrates that greater analytical equipment and instruments are crucial in elucidating the opposed affects of algal blooms in seawater at the operation of membrane-based desalination crops (UF-RO). It additionally highlighted the significance of constructing potent pre-treatment procedures to take away AOM from the uncooked water and decrease the membrane fouling capability of the feed water for downstream SWRO membranes.



Show description

Read Online or Download Algal Blooms and Membrane Based Desalination Technology PDF

Best water quality & treatment books

Reverse Osmosis: Design, Processes, and Applications for Engineers

Opposite osmosis is quickly growing to be as a water therapy expertise in functions reminiscent of convalescing wastewater for reuse. yet, while the know-how turns into extra common, figuring out of it lags in the back of. opposite Osmosis: layout, tactics, and functions for Engineers presents finished assurance of the expertise, overlaying the procedures and kit essential to layout, function, and troubleshoot opposite osmosis platforms.

Practical Hydraulics Handbook, Second Edition

The second one version of the sensible Hydraulics instruction manual is a needs to for all those that paintings with water application platforms. provided in workbook structure and emphasizing useful purposes, this guide is ideal for hydraulic engineers, technicians, working team of workers, supervisors, managers, experts, and scholars.

Filters and Filtration Handbook, Fifth Edition

Filters are utilized in such a lot industries, specially the water, sewage, oil, fuel, nutrition and beverage, and pharmaceutical industries. the hot version of this confirmed name is an all-encompassing functional account of normal filtration apparatus and its purposes. thoroughly revised and rewritten, it really is a vital ebook for the engineer operating in a plant situation-who calls for advice and data on what is to be had and no matter if it truly is appropriate for the activity.

Best Practice Guide on the Control of Iron and Manganese in Water Supply

This most sensible perform consultant at the keep an eye on of Iron and Manganese in Water offer is one among a chain produced via the overseas Water Association's expert crew on Metals and similar ingredients in ingesting Water. Iron and manganese are usually present in delicate upland water assets linked to common natural subject and also are in general present in the groundwaters abstracted from restrained and unconfined aquifers.

Additional info for Algal Blooms and Membrane Based Desalination Technology

Example text

A. (1985). Encystment of dinoflagellate Gyrodinium uncatenum: temperature and nutrient effects. J. Phycol. M. A. (1985) Dinoflagellate cyst dynamics in coastal and estuarine waters. pp. M. G. (eds) Toxic dinoflagellates. Proc. 3rd Int’l. , Elsevier, New York. , B. C. O. Enevoldsen (2010a) The IOC International Harmful Algal Bloom Program: History and science impacts. Oceanography 23(3), 72–85. Anderson, DM and Cembella, AD and Hallegraeff, GM (2012) Progress in understanding harmful algal blooms: paradigm shifts and new technologies for research, monitoring and management, Annual Review Marine Science 4, 143-176.

G. R. L. ). Harmful Algal Blooms in the PICES Region of the North Pacific. PICES Sci. Rep. No. 23, 152 pp. Pankratz, T. (2008), “Red Tides Close Desal Plants”, Water Desalination Report, 44 (44). Passow, U. (2000) Formation of transparent exopolymer particles (TEP) from dissolved precursor material. Marine Ecology Progress Series 192, 1-11. Passow, U. (2002a) Transparent exopolymer particles (TEP) in aquatic environments, Progress In Oceanography 55(3-4), 287-333. Passow, U. (2002b) Production of transparent exopolymer particles (TEP) by phyto-and bacterioplankton.

1993) Phytoplankton aggregate formation: observations of patterns and mechanisms of cell sticking and the significance of exopolymeric material. J. Plankton Res. 15(9): 993-1018. Laamanen, M. , Gugger, M. , Lehtimäki, J. , & Sivonen, K. (2001). Diversity of toxic and nontoxic nodularia isolates (cyanobacteria) and filaments from the baltic sea. Applied and Environmental Microbiology, 67(10), 4638-4647. S. (2001) Marine Snow. pp. H. Steele (ed) Encyclopedia of Ocean Sciences, Academic Press, Oxford.

Download PDF sample

Rated 4.35 of 5 – based on 42 votes