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Turbidimeter for drinking water
Technology news
Filtration+Separation June 2008
Disposable monitoring system for fast reaction to chlorine release Severn Trent Services has introduced the Capital Controls® Type VEGA™ gas chlorinator vent exhaust arrestor, a disposable system designed to treat occasional chlorine gas vent releases that normally accompany chlorine container changeovers. According to the company, the field-tested VEGA prevents nuisance tripping of chlorine room air sensor alarms; helps compliance with local, state and federal code restrictions against exhausting chlorine fumes outside of a building, and keeps the building free from chlorine-related acid corrosion. The VEGA is a 5-gallon or 19.0 litres HDPE disposable container of chemically impregnated media designed to react on contact to convert chlorine to harmless
landfill disposable salt. Unlike carbon-based media used for the same purpose, Severn Trent says the VEGA media eliminates concerns of combustion and has no need of neutralisation prior to disposal. The VEGA is equipped with inlet and outlet chlorine colorimetric indicator strips, with exposure to chlorine turning the white strips yellow. According to Severn Trent, under normal operating conditions, the VEGA system has an operating life of approximately one year. Once exhausted, the entire system can be disposed of in a nonhazardous landfill. There are two VEGA arrangements; single-system and stacked-system. Severn Trent recommends stacked-system for applications when no chlorine escape can be tolerated. www.severntrentservices.com
Capital Controls® Type VEGA™ gas chlorinator vent exhaust arrestor.
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Turbidimeter for drinking water AquaSensors has launched the AquaClear™, a data stickbased low-range turbidimeter that meets USEPA Method 180.1. Designed for drinking water applications in a compact, AquaSensors says the AquaClear™ comes in an easy to use package. According to the company, the low sample chamber volume makes calibration simple and inexpensive, while offering sensitivity and performance optimised for both membrane and conventional filter monitoring. It also features a pre-calibrated sensor that can provide 24-bit data directly into a PLC, SCADA or computer system. www.AquaSensors.com
Ball mill reduces fibrous materials to submicron range Retsch has launched the new Planetary Ball Mill PM 100 CM and, designed to accompany it, the PM GrindControl measuring system. According to Retsch, the Planetary Ball Mill PM 100 CM offers the same level of performance as the company’s PM 100 and is suitable for dry and wet grinding. The PM 100 pulverises and mixes soft, medium-hard to extremely hard, brittle and fibrous materials and, according to Retsch, should be used wherever the highest degree of fineness down to the submicron range is required. In contrast to the PM 100, Retsch says the speed ratio of sun wheel to grinding jar is 1:-1. As the mill operates the centrifugal mode, this results in a different ball movement so that the sample is not so much crushed by impact effects but
fs4505_pg10_13.indd 13
more gently ground by pressure and friction which allows for a lower temperature rise in the grinding jar and less abrasion. The company states that the PM 100 CM offers an alternative for all applications where size reduction must not necessarily be carried out with maximum energy input. In addition to the PM 100 CM, Retsch has launched the measuring system PM GrindControl. When planetary ball mills are used for processes such as mechanical alloying or chemical syntheses, it can be helpful to monitor and document the pressure and temperature inside the grinding jar during operation. The PM GrindControl is designed for such applications, with a built-in sender in the grinding jar lid that sends digital signals to a USB receiver which is connected to a PC. www.retsch.com
The PM GrindControl measuring system to monitor the pressure and temperature during operation.
20/05/2008 15:15:29
Filtration+Separation June 2008
Disposable monitoring system for fast reaction to chlorine release Severn Trent Services has introduced the Capital Controls® Type VEGA™ gas chlorinator vent exhaust arrestor, a disposable system designed to treat occasional chlorine gas vent releases that normally accompany chlorine container changeovers. According to the company, the field-tested VEGA prevents nuisance tripping of chlorine room air sensor alarms; helps compliance with local, state and federal code restrictions against exhausting chlorine fumes outside of a building, and keeps the building free from chlorine-related acid corrosion. The VEGA is a 5-gallon or 19.0 litres HDPE disposable container of chemically impregnated media designed to react on contact to convert chlorine to harmless
landfill disposable salt. Unlike carbon-based media used for the same purpose, Severn Trent says the VEGA media eliminates concerns of combustion and has no need of neutralisation prior to disposal. The VEGA is equipped with inlet and outlet chlorine colorimetric indicator strips, with exposure to chlorine turning the white strips yellow. According to Severn Trent, under normal operating conditions, the VEGA system has an operating life of approximately one year. Once exhausted, the entire system can be disposed of in a nonhazardous landfill. There are two VEGA arrangements; single-system and stacked-system. Severn Trent recommends stacked-system for applications when no chlorine escape can be tolerated. www.severntrentservices.com
Capital Controls® Type VEGA™ gas chlorinator vent exhaust arrestor.
13
Turbidimeter for drinking water AquaSensors has launched the AquaClear™, a data stickbased low-range turbidimeter that meets USEPA Method 180.1. Designed for drinking water applications in a compact, AquaSensors says the AquaClear™ comes in an easy to use package. According to the company, the low sample chamber volume makes calibration simple and inexpensive, while offering sensitivity and performance optimised for both membrane and conventional filter monitoring. It also features a pre-calibrated sensor that can provide 24-bit data directly into a PLC, SCADA or computer system. www.AquaSensors.com
Ball mill reduces fibrous materials to submicron range Retsch has launched the new Planetary Ball Mill PM 100 CM and, designed to accompany it, the PM GrindControl measuring system. According to Retsch, the Planetary Ball Mill PM 100 CM offers the same level of performance as the company’s PM 100 and is suitable for dry and wet grinding. The PM 100 pulverises and mixes soft, medium-hard to extremely hard, brittle and fibrous materials and, according to Retsch, should be used wherever the highest degree of fineness down to the submicron range is required. In contrast to the PM 100, Retsch says the speed ratio of sun wheel to grinding jar is 1:-1. As the mill operates the centrifugal mode, this results in a different ball movement so that the sample is not so much crushed by impact effects but
fs4505_pg10_13.indd 13
more gently ground by pressure and friction which allows for a lower temperature rise in the grinding jar and less abrasion. The company states that the PM 100 CM offers an alternative for all applications where size reduction must not necessarily be carried out with maximum energy input. In addition to the PM 100 CM, Retsch has launched the measuring system PM GrindControl. When planetary ball mills are used for processes such as mechanical alloying or chemical syntheses, it can be helpful to monitor and document the pressure and temperature inside the grinding jar during operation. The PM GrindControl is designed for such applications, with a built-in sender in the grinding jar lid that sends digital signals to a USB receiver which is connected to a PC. www.retsch.com
The PM GrindControl measuring system to monitor the pressure and temperature during operation.
20/05/2008 15:15:29