42 Water/Wastewater
Going Green with Thermo Scientific Orion Green Electrodes: Perform Environmental Testing Without Negatively Impacting the Environment
Thermo Scientific Orion Green pH electrodes were the first laboratory glass-bulb pH electrode to meets all Restriction of Hazardous Substances Directive (RoHS) requirements without any exemptions. The Orion Green electrodes contain no lead, no mercury, or hazardous substances. The Orion Green, environmentally-friendly electrodes offer lead-free glass, lead-free solder and recyclable packaging.
Most electrodes use leaded glass (some contain up to 20% lead) and contain lead soldering. That is why electrodes currently have an exemption from the European Union’s RoHS directive. Thermo Scientific took the initiative to be greener, and to be compliant even before the products were regulated. So the team worked ‘to get the lead out’ - literally, while maintaining the electrode response and accuracy. Green concerns continue to drive Thermo Scientific to develop green methods and green products.
A bigger challenge is the continued presence of mercury in laboratory electrodes. Mercury exposure can harm the brain, heart, kidneys, lungs, and immune system of people of all ages, but is especially harmful to children under 5 years old. It has been regulated in some products - like mercury thermometers, but today mercury electrodes are still in demand in laboratories. Mercury (Calomel) electrodes were introduced for measuring TRIS, proteins and sulphides without compatibility problems - but multiple alternatives to mercury electrodes have been developed years ago.
Thermo Scientific does not market mercury electrodes, and promotes the non-mercury reference electrode technologies. “The ROSS®
electrode
and double-junction electrode designs are examples of environmentally- safe alternatives for measuring TRIS, proteins and sulphides with no
Reader Enquires: Water Analysis Instruments, Thermo Fisher Scientific
Tel: (65) 6778 6876 Fax: (65) 6778 3722 E-Mail:
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performance trade-offs. We continue to educate our customers there are safer, non-mercury alternatives - like the Orion Green double-junction electrodes. It is a concern there is little legislation in place to stop the use of calomel (mercury) electrodes.
What are the advantages of the Green environmentally-friendly
electrodes? •Thermo Scientific Orion electrode quality. •Meets or exceeds the RoHS requirements. •Contains no mercury, lead or other hazardous materials. •Ease the cost and concerns of electrode disposal. •No leaching of hazardous substances into landfills. •Green biodegradable, minimal packaging.
•Double junction options are TRIS, sulphide, and protein compatible and mercury free, unlike calomel electrodes.
Orion Green electrodes can be used with any manufacture of pH meters - you just need to match the BNC connector. There are 4 models available depending upon your measurement needs. All are epoxy-bodied electrodes with the option of a maintenance-free gel or a refillable body. Each is available as a single junction electrode or as a double junction electrode (that is compatible with TRIS while not containing mercury.)
Now environmental labs, municipalities, educational labs, R & D and QA/QC labs can all measure pH in the laboratory and out in the field with an environmentally safe alternative. Join in to be part of the solution - not part of the problem.
Reader Reply Card no 139
New Range of Compact Water Analysers
AppliTek (Belgium) has the pleasure to announce the latest development in on-line analyser equipment, completing the existing analyser portfolio of the Belgian manufactur- er. The system, baptised as EnviroLyzer®
, not
only includes the expertise acquired from the existing range of highly specialised industrial analysers, but presents in its class a step forward in terms of maintenance, investment cost en data communication.
The new compact analyser is suited to be implemented in the on-line monitoring of waste water, cooling water, boiler feed water and surface waters. Customers can choose from a list of no less then 15 parameters a.o. nitrate, phosphate and even zinc, phenol and cyanide. Autonomy is the keyword of the EnviroLyzer®
, assured by the incorporated industrial controller, and refers to sampling, auto- calibration, auto-validation and auto-cleaning. Results are displayed both as numerical results as well as a graph in function of time.
Since 1985 AppliTek has built an enviable reputation in the advice, development and commissioning of on-line monitoring systems in several industries, relying on its experience in turnkey analyser projects. At this very moment the company is completing an analyser project in the industrial cities of Yanbu and Jubail, Saudi Arabia, where several monitoring stations built on customer’s specifications will assure 24/7 measurements on the waste water streams of the petrochemical companies on-site.
Hence the reference value for the Middle East market, according to AppliTek CEO David Laurier, we were very pleased to get the Saudi project awarded, but only after two years of negotiating the legal and technical terms with all the parties. Nevertheless, says Mr. Laurier, every project starts with the analysis, more specifically the measuring equipment, and this is exactly where AppliTek can make a difference by ongoing R&D.
Reader Reply Card no 140 Reader Reply Card no 141
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Annual Buyers Guide 2009
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