ATI Model Q46/85 is designed for on-line monitoring and control of processes that contain peracetic acid.
Peracetic acid (PAA) is an extremely strong oxidizer widely used in the food industry for disinfection of piping systems and processing equipment. It is also used for spray washing of food products, and for disinfection of cooling water systems. As a disinfecting agent, PAA is often preferred because it produces no harmful breakdown products.
As with any disinfection system, maintaining proper residual values is the key to effective pathogen control. To facilitate reliable chemical feed control, ATI has developed an on-line monitor cable of providing real time measurement of low levels of PAA in solution. The Q46/85 Peracetic Acid Monitor uses a direct sensing polarographic probe. The probe is typically used in a flowcell, but a submersible sensor is also available. A permeable diffusion membrane isolates the sensing electrodes from the measured sample, providing long-term stability without electrode fouling problems. The measurement is selective for PAA and is not affected by changes in hydrogen peroxide concentration, which is always present in PAA solutions.
Peracetic acid sensors are amperometric devices isolated from the water by a permeable membrane. As PAA diffuses through this membrane, it comes in contact with an active electrode and is reduced on the surface. The net effect is that the sensor generates a current proportional to PAA concentration. An integral RTD in the sensor provides for automatic temperature compensation, allowing the sensor to operate accurately over a range of 0-50° C.
Peracetic acid sensors are capable of operating over a fairly broad concentration range, from a low range of 0-20 PPM up to a high range of 0-2000 PPM. Systems will operate with good sensitivity down to 0.2 PPM and respond to changes in concentration within about 60 seconds, making them useful for automatic control.
Peracetic Acid sensors require a steady flow of sample across the membrane at the tip of the sensing assembly. ATI offers options for flowcells, including the standard constant-head overflow system, and a sealed flowcell for pressures up to 50 PSI. For simplicity of installation, complete flow control assemblies are available. Panel assemblies are available with or without a flow switch and can greatly reduce installation time. For open tank installation, a submersible sensor is available. Sample agitation is required as PAA sensors cannot be used in still water.
|Image||Part #||Product Description||Price||Stock||Order|
|Q46/85||Peracetic acid monitor||Drop ships from manufacturer|
For the first time, citizens of the Kathmandu Valley in Nepal have free access to local water data. The data is the result of a water quality monitoring pilot project started by the California-based nonprofit SmartPhones4Water (S4W). SmartPhones4Water, an idea developed by Ph.D. student Jeff Davids and the late Dr. Peter-Jules van Overloop from Delft University of Technology (Netherlands), was started in California in 2014. The goal of the organization is to leverage smartphone technology to gather water data in countries where such data is scarce. The method is simple: a network of local citizens use their smartphones to capture and upload the data to an online server and database.Read More
Celebrating its 25th year, Coosa River Basin Initiative is forming a new water monitoring partnership with the Berry College Environmental Science program. Coosa River Basin Initiative, also known as CRBI , is a grassroots environmental protection organization that works with volunteers to protect and preserve the Coosa River in Rome, Georgia and the surrounding cities. CRBI is a member of the Georgia Water Coalition and the Waterkeeper Alliance. You may be wondering what is so special about the Coosa River. The answer is just about everything. The river is a vital part of the communities surrounding it. “Every river is important but the Coosa River is important in several unique ways,” said Jesse Demonbruen-Chapman, director of CRBI.Read More
The result of a harmful algae bloom in the summer of 2016, the enhanced Utah Lake water quality monitoring program reached its one year milestone in September. Located near the Provo and Orem metropolitan areas, the lake is Utah’s largest freshwater body and a popular water recreation and fishing spot. In the summer of 2016, recreation users reported an unusual amount of scum on the surface of the water. Utah Lake is monitored by the Utah Division of Water Quality (UDWQ). Prior to the 2016 harmful algae bloom (HAB), the UDWQ successfully used regular water sample testing and citizen reporting to stay on top of any incidents.Read More