algae sampling Articles

Algae Enumeration and Identification Algae are ubiquitous in virtually all aquatic environments and are important bioindicators of water quality. They are frequently used to assess and monitor the health of aquatic systems. On the other hand, they are also responsible for imparting undesirable flavors to potable water supplies and pose potential health threats, particularly during algal blooms. ...

Sep. 30, 2012

By Analytical Services, Inc

This study examined the temporal and spatial variations in the occurrence of major algae and algae-related taste and odour (T&O) compounds in Qingcaosha Reservoir, China. Water samples were collected monthly from seven sites in the reservoir and analysed using solid phase microextraction combined with gas chromatography-mass spectrometry. Results showed that green algae were dominant over ...

Apr. 24, 2015

By IWA Publishing

In Connecticut, with the change over to UV from Chlorination for disinfection at some of the State’s WPCFs (Water Pollution Control Facilities), it has been observed that an increase in attached algal growth along with a proliferation of a dense population of “tiny” snails (Pouch Snails) is occurring in the UV chamber(s).   The end result appears to cause an ...

Jan. 26, 2009

By GillTrading.com, Inc.

Global warming due to the excessive use of fossil fuels is becoming a problem which has prompted and accelerated the search for alternative fuels. Among the more attractive alternatives is biomass fuel, which is attracting considerable attention. Microalgae can be used for the production of oil without competing with food production, and to a greater extent than other biofuels, its ...

May 12, 2014

By Shimadzu Scientific Instruments Inc

As part of the Clearwater PMPC project, 2 MPC Buoys were deployed in the Skrzyneckie Małe Lake to test the performance of this unique technology. The Challenge: Control and Monitor Toxic Algal Blooms The ClearWaterPMPC project was initiated by LG Sound and funded by "Research for SMEs" within the EU 7th Framework Programme. The goal of the ClearWaterPMPC (Predicting, ...

Jul. 1, 2016

By LG Sonic

Global warming due to the excessive use of fossil fuels is becoming a problem which has prompted and accelerated the search for alternative fuels. Among the more attractive alternatives is biomass fuel, which is attracting considerable attention. Microalgae can be used for the production of oil without competing with food production, and to a greater extent than other biofuels, its ...

Oct. 1, 2014

By Shimadzu Scientific Instruments Inc

In June 2012, the Brazilian public water company Sabesp decided to install one LG Sonic e-line device at their facultative oxidation lagoon in Itapetininga. The Challenge: Blue-green Algae Cause Operational Problems Nuisant odours caused by periodic occurrence of excessive quantities of filamentous, and blue-green algae were posing operational problems at the facultative ...

May 31, 2012

By LG Sonic

This study assessed the ability of filamentous green algae; Spirogyra aequinoctialis to accumulate manganese, cadmium and lead from water. Water pH was also determined. Samples of S. aequinoctialis and their respective water environments were taken from designated sampling points in the city of Blantyre and Malawi during the ...

Aug. 31, 2008

By Center for Environment and Energy Research & Studies (CEERS)

For the Ministry of Agriculture in Cyprus, LG Sound b.v installed 33 LG Sonic, ultrasonic devices in the Limassol water treatment plant, to prevent bad odour and taste to the water caused by geosmins in the water. The earthy taste problem persisted during summer of 2010 and various physical, chemical and biological tests were done in order to check the process efficiency, which showed problems ...

May 16, 2012

By LG Sonic

This paper presents both a current review of the state-of-the-art in algae removal, and an experimental study of algae removal in potable water supply. Established techniques were investigated by jar-testing on surface raw water samples derived from a lowland river, with the dominant species of algae being Scenedesmus sp (a green algae). These tests were conducted both in isolation and in ...

Oct. 27, 2004

By Inderscience Publishers

Sorption of heavy metals by the sea alga Palmaria palmata was investigated in laboratory conditions. The sorption process of the analytes was carried out with constant flow of the solutions through the algae samples. The Langmuir isotherm model was used to describe equilibria. The experiments confirmed that 50 min of exposure of algae with little heavy metal contamination in contaminated ...

Oct. 17, 2013

By IWA Publishing

The Utility: The Clarksville Water System consists of a water treatment plant and a distribution system that serves approximately 160,000 people, making it one of the largest in Tennessee. The Clarksville Water Treatment Plant is situated on an 11 acre (4.5 hectare) site beside the Cumberland River, the city’s source of water, and has an estimated capacity of 28 MGD with peak rates ...

May 13, 2015

By Geomembrane Technologies, an Evoqua brand

For the Ministry of Agriculture in Cyprus, LG Sound b.v installed 33 LG Sonic, ultrasonic devices in the Limassol water treatment plant, to prevent bad odour and taste to the water caused by geosmins in the water. The earthy taste problem persisted during summer of 2010 and various physical, chemical and biological tests were done in order to check the process efficiency, which showed ...

Nov. 3, 2012

By LG Sonic

Untitled Document Maintenance professionals are often the first responders to mold complaints in their facilities. building occupants can be exposed to fungal (mold) ...

Dec. 31, 2003

By EMSL Analytical, Inc.

Mixture toxicity studies with herbicides have focused on a few priority components that are most likely to cause environmental impacts and experimental mixtures were often designed as equipotent mixtures; however, real world mixtures are made up of chemicals with different modes of toxic action at arbitrary concentration ratios. The toxicological significance of environmentally realistic ...

Mar. 18, 2014

By John Wiley & Sons, Ltd.

This paper describes an ecotoxicological test using the alga Dunaliella tertiolecta associated with visible (VIS) and infrared (FTIR) spectroscopic detection. The estimation of toxicity is performed by measuring the cell density at 432 nm instead of 665 nm the results are comparable with those obtained by conventional visual or automatic estimation of celle density. FTIR spectroscopy gives an ...

Jan. 28, 2008

By Inderscience Publishers

Integrated algae pond systems (IAPS) combine the use of anaerobic and aerobic bioprocesses to effect sewage treatment. In the present work, the performance of IAPS was evaluated to determine the efficiency of this technology for treatment of municipal sewage under South African conditions. Composite samples were analysed over an 8 month period before and after tertiary treatment. ...

Jun. 24, 2014

By IWA Publishing

Received for publication April 24, 2009. A linkage between Cladophora mats and exceedances of recreational water quality criteria has been suggested, but not directly studied. This study investigates the spatial and temporal association between Escherichia coli concentrations within and near Cladophora mats at two northwestern Lake Michigan beaches in Door County, Wisconsin. Escherichia coli ...

Dec. 31, 2009

By Soil Science Society of America (SSSA)

As a result of electrolysis, biomass was controlled to some extent and the protein content per gram wet algae decreased. The viability of the algae was measured by the flow cytometry. Without taking into account the consumption of substrate, Microcystis aeruginosa growth kinetics was demonstrated that the electrolysis would inhibit the algal growth. At the same time, photosynthetic efficiency ...

May 13, 2009

By Inderscience Publishers

Spectral absorption method based on two step linear regression analyses (TSLR) was applied for detection of two strains of cyanobacterium, Microcystis (blue-green algae) from eukaryotic algae. Both blue-green algae, algae and dissolved organic carbon (DOC) were considered from freshwater bodies in Kanto region, Japan. The results show that blue-green species can be detected from other algal ...

Feb. 28, 2011

By IWA Publishing