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Filter system protects NSAF plant
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Technology news Filtration+Separation November/December 2009
Spectrometer offers effective toy analysis Thermo Fisher Scientific Inc. has issued a new application note to illustrate the capabilities of its Thermo Scientific iCAP 6200 ICP spectrometer for the analysis of toxic trace elements in children’s toys. The dual-view ICP instrument offers pre-optimised sample introduction settings and analysis-ready software method templates. The new application note, Analysis of migratory elements in toy samples using the Thermo Scientific iCAP 6200 ICP spectrometer, assesses the performance of the iCAP 6200 ICP for the routine analysis of toy samples for consumer safety verification. Manufacturers routinely analyse toy samples for toxic trace elements, but a number of recent cases of contaminated toys suggest that heavy metals are still
present in consumer products. This has resulted in an increasing number of toy producers opting to perform in-house testing to ensure compliance with current regulations and protect consumers. For many, in-house testing can be less costly than outsourced analysis. Today, many regulations worldwide are based on a test method that monitors the levels of trace elements migrating from a toy material into an acidic solution. This simulates the release of elements when toy components are ingested by a child. The company says that the application note details the analysis of three samples extracted from a toy car and a baby rattle, each prepared in accordance with ASTM F963-08 and EN71 Part 3. The study utilised the iCAP 6200’s integrated Thermo
Thermo Scientific’s iCAP 6200 ICP spectrometer can be used for the analysis of toxic trace elements in children’s toys.
Scientific iTEVA software, which is supplied with pre-loaded method templates that enable protocolcompliant sample analysis in the environment, food safety, toy safety and WEEE/RoHS market sectors. The company says that these templates, combined with the instrument’s pre-optimised
sample introduction system, enable simple, consistent operation and ensure both novice and experienced ICP users can achieve powerful analytical performance with minimal method development requirements. www.thermo.com
Filter system protects NSAF plant A Bollfilter filtration system has been installed to protect a new Nitrifying Saturated Air Flotation (NSAF) plant at Thames Water’s Sewage Treatment Works at Cranleigh, Surrey in the UK. The NSAF plant handles all the wastewater for Cranleigh
with an operating capacity of up to 120 litres per second. Following secondary treatment, the wastewater is passed through the NSAF system, which uses a biological oxidation process to remove microscopic particles. The NSAF cells contain a biomass
with microbes that, when pumped through with oxygen, feeds on ammonia and other contaminants to purify the water. The Bollfilter installation, which comprises an automatic selfcleaning filter with manual filter on the bypass line, is designed
to protect small pipework in the NSAF plant from risk of damage or blockages from particulates. As Cranleigh is low-lying, the Bollfilter system features a Hidrostal backflush assist pump to ensure efficient performance under the low pressure conditions. Julian Dempster, Black & Veatch M&E Coordinator for the project, explains the importance of reliable filtration. He added: “The NSAF plant is a continual process. If particulates enter the system they can foul the NSAF media and can cause blockages. The Boll system, which operates continually with an automatic backflushing cycle, removes the need for manual cleaning and prevents plant downtime.” The Cranleigh Plant also has another Boll 6.18 automatic filter fitted on the washwater system to protect nozzles on the inlet works plant from blocking.
A Bollfilter automatic filtration system protects Thames Water’s new NSAF plant at Cranleigh, Surrey in the UK.
www.bollfilter.co.uk
Technology news Filtration+Separation November/December 2009
Spectrometer offers effective toy analysis Thermo Fisher Scientific Inc. has issued a new application note to illustrate the capabilities of its Thermo Scientific iCAP 6200 ICP spectrometer for the analysis of toxic trace elements in children’s toys. The dual-view ICP instrument offers pre-optimised sample introduction settings and analysis-ready software method templates. The new application note, Analysis of migratory elements in toy samples using the Thermo Scientific iCAP 6200 ICP spectrometer, assesses the performance of the iCAP 6200 ICP for the routine analysis of toy samples for consumer safety verification. Manufacturers routinely analyse toy samples for toxic trace elements, but a number of recent cases of contaminated toys suggest that heavy metals are still
present in consumer products. This has resulted in an increasing number of toy producers opting to perform in-house testing to ensure compliance with current regulations and protect consumers. For many, in-house testing can be less costly than outsourced analysis. Today, many regulations worldwide are based on a test method that monitors the levels of trace elements migrating from a toy material into an acidic solution. This simulates the release of elements when toy components are ingested by a child. The company says that the application note details the analysis of three samples extracted from a toy car and a baby rattle, each prepared in accordance with ASTM F963-08 and EN71 Part 3. The study utilised the iCAP 6200’s integrated Thermo
Thermo Scientific’s iCAP 6200 ICP spectrometer can be used for the analysis of toxic trace elements in children’s toys.
Scientific iTEVA software, which is supplied with pre-loaded method templates that enable protocolcompliant sample analysis in the environment, food safety, toy safety and WEEE/RoHS market sectors. The company says that these templates, combined with the instrument’s pre-optimised
sample introduction system, enable simple, consistent operation and ensure both novice and experienced ICP users can achieve powerful analytical performance with minimal method development requirements. www.thermo.com
Filter system protects NSAF plant A Bollfilter filtration system has been installed to protect a new Nitrifying Saturated Air Flotation (NSAF) plant at Thames Water’s Sewage Treatment Works at Cranleigh, Surrey in the UK. The NSAF plant handles all the wastewater for Cranleigh
with an operating capacity of up to 120 litres per second. Following secondary treatment, the wastewater is passed through the NSAF system, which uses a biological oxidation process to remove microscopic particles. The NSAF cells contain a biomass
with microbes that, when pumped through with oxygen, feeds on ammonia and other contaminants to purify the water. The Bollfilter installation, which comprises an automatic selfcleaning filter with manual filter on the bypass line, is designed
to protect small pipework in the NSAF plant from risk of damage or blockages from particulates. As Cranleigh is low-lying, the Bollfilter system features a Hidrostal backflush assist pump to ensure efficient performance under the low pressure conditions. Julian Dempster, Black & Veatch M&E Coordinator for the project, explains the importance of reliable filtration. He added: “The NSAF plant is a continual process. If particulates enter the system they can foul the NSAF media and can cause blockages. The Boll system, which operates continually with an automatic backflushing cycle, removes the need for manual cleaning and prevents plant downtime.” The Cranleigh Plant also has another Boll 6.18 automatic filter fitted on the washwater system to protect nozzles on the inlet works plant from blocking.
A Bollfilter automatic filtration system protects Thames Water’s new NSAF plant at Cranleigh, Surrey in the UK.
www.bollfilter.co.uk