May 2006Analytical Instrumentation & Environmental Monitoring
With the installation of the EC 150 cleaning system, pH electrodes are cleaned quarterly, not daily, and the stability and reliability of the measurement is greatly enhanced.
Holmen Paper - long tradition and highly experienced
Holmen Paper is a Swedish forestry group manufacturing paper, paperboard and wood products. Raw materials come from the group's own forests (just over a million hectares in size) and from recycled paper. The group has an impressive history dating back to 1609 and the opening of an armaments factory, which began to manufacture hand-made paper in 1633. The factory was situated in Norrkoping in central Sweden, which at that time was second only to the capital, Stockholm.
Business was turbulent at times, with fires, outbreaks of plague and devastation during the Russian invasion of 1719. Holmen suffered the loss of three ships during the Second World War. The company we see today is a result of a strategy adopted in 1999 with its focus on printing paper and paperboard, which now comprise 80% of net turnover.
Blocked pH electrodes problem and solution
Hallsta Paper Mill, one of the factories in the Holmen group, has been measuring the pH of its incoming untreated water and wastewater basin for some time using Mettler Toledo's measurement system EasyClean. "We bring in about 35 m³ of untreated water a minute," says Hallsta's instrument foreman Tommy Asenbrygg. "This used to cause a lot of problems with blocked pH-electrodes, and it took a lot of time and energy to clean them."
For the troubleshooting, Mettler Toledo suggested the installation of EasyClean 150, for automatic cleaning of the pH-electrodes. After this successful installation, Asenbrygg confirmed: "We do not have to clean the electrodes by hand now because EasyClean cleans them automatically." Hallsta's process engineer Tommy Kindblom agrees. "We have been able to make big cuts in our maintenance time," he says, and describes how they used to have to maintain the electrodes on a daily basis, but now only need do so once a quarter.
Another benefit is that measurement values are now much more stable. "Since the electrodes used to get blocked so fast, we could not rely on the values being exact unless we had manually cleaned them just before measuring," says Kindblom. "The more stable values that we obtain now allow us to correct factors like chemical consumption, which of course is good for the environment."
"At Hallsta Paper Mill, it is clear that Easy-Clean has made the business more efficient and eco-friendly." More Mettler Toledo products are on their way into applications that cover some of the factory's other 25 measurement points.
Meteorological data logger with up to 32 analogue sensors Senseca
Analytical Instrumentation & Environmental Monitoring
Senseca has introduced its advanced data acquisition system for environmental monitoring, which has a universal data logger for up to 32 analogue, pulse and smart digital sensors.
Read more...Cooling tower bleed control
Analytical Instrumentation & Environmental Monitoring
Cooling towers rely on evaporation to remove heat, but this process also concentrates dissolved solids in the system. Left unmanaged, this buildup can lead to scaling, corrosion and fouling, reducing efficiency and increasing maintenance costs.
Read more...Importance of gas analysis in the petrochemical industry Elemental Analytics
Analytical Instrumentation & Environmental Monitoring
Gas analysis plays a critical role in petrochemical operations, supporting process optimisation, product quality and plant safety. As an experienced and expert gas analysis supplier, Elemental Analytics can provide the correct analyser and sample system package to meet individual plant requirements.
Read more...Remote monitoring solution for sewage plants ifm - South Africa
Analytical Instrumentation & Environmental Monitoring
With ifm’s remote monitoring solution, you can visualise the condition of the submersible pumps in your sewage plant and diagnose issues before they become serious problems.
Read more...Precision in every drop, powered by ICP technology Wearcheck
Analytical Instrumentation & Environmental Monitoring
Elemental profiling using Inductively Coupled Plasma – Optical Emission spectroscopy provides useful information on the chemical composition of lubricants.
Read more...A trusted oxygen analyser back in action Elemental Analytics
Analytical Instrumentation & Environmental Monitoring
After a period of discontinuation, Servomex’s Oxy 1810 oxygen analyser has officially returned.
Read more...Multi-channel pH and conductivity controller for the water sector Senseca
Analytical Instrumentation & Environmental Monitoring
The measurement of pH and conductivity plays an integral role in water systems. Senseca South Africa has introduced a multi-channel controller that allows the connection of up to five digital sensors and a frequency-emitting flow sensor.
Read more...DEKRA Industrial sets new standards for asset integrity in local petrochemical sector
Analytical Instrumentation & Environmental Monitoring
DEKRA Industrial South Africa has strengthened its position as a leader in hydrogen-induced cracking inspections through a strategic combination of advanced non-destructive testing techniques, investment in state-of-the-art inspection equipment and global technical collaboration.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version