SYNERGY SALES LLC
SYNERGY SALES LLC
ATI OPTICAL D.O. SYSTEM CLEAR WINNER IN UW MADISON STUDY
The City of Beloit Water Pollution Control Facility is an activated sludge wastewater treatment plant commissioned in November 1991. The plant treats on average 4.6 million gallons of waste per day, and discharges their effluent into the Rock River.
UW Madison Department of Civil and Environmental Engineering was brought to the Beloit Wastewater Treatment Facility with the purpose of analyzing the dissolved oxygen profile along the aeration basins. Using D.O. Probes, the current dissolved oxygen levels could be measured.
To monitor the dissolved oxygen in the aeration basin, the Beloit Wastewater Treatment Facility requested to test four D.O. probes from four different vendors. The four D.O. probes used were the Thermo Scientific RDO, MJX Oxix, ATI Model Q45D-ODO and Hach LDO. The plant set up the four D.O. probes to monitor different sections of the aeration basin. All the D.O. probes were set up so they all connect to a server provided by ATI. This set up allowed access to the hourly minimum, maximum and average D.O. concentrations that each of the four probes collected.
(excerpts from UW Madison Wastewater Treatment Plant Design Fall 2010)
"To see which D.O. meters provided the least variation from the average values, we calculated the concentration differences between the average daily value and the minimum concentration, and the daily value and maximum concentration......Overall, we feel that all the meters are fairly accurate and will doa sufficient job in measuring the D.O. concentrations for blower efficiency monitoring and operation. However, we would advise not to use the HACH monitor as it is the only sensor of the four that requires periodic wiping of the sensor with a wet rag for continuous measurements. We prefer ATI most as it has the highest range and second highest accuracy measurements according to the manufacturer specifications. Also, in our twelve day monitoring period, the ATI Sensor had the lowest variation between minimum, maximum and average daily D.O. concentrations."
Click here for full UW Madison Report
KROHNE MASSMETER FOR HIGH STRENGTH WASTE
A premium Cheese Manufacturer was diverting high strength waste to a holding tank using a refractometer. The refractometer required daily cleaning and had low sensitivity. Due to the nature of the process water, the light source lenses would coat over. The result was inaccurate readings and overloading the treatment plants.
The customer called for help and Synergy installed a Krohne Optimass Straight tube Massmeter which worked right out of the box. Process water was being properly diverted and because of the straight tube design, the meter does not require cleaning. The customer no longer has to worry about inaccurate readings or overloading the plant.
Click here for a Technical Data Sheet
EFFECTS OF HN4 & NO3 ON DISSOLVED OXYGEN
A wastewater treatment plant in southeastern Wisconsin was having control issues in their oxidation ditches. The D.O. readings were spiking at random times. The plant initially thought there was was a problem with the D.O. sensors. Two sensors were rebuilt and a third was replaced, however the problem persisted. A combination NH4 & NO3 sensor along with a dual output analyzer was installed and within the first 48 hours, the problem was identified. As the graph below shows, high levels of ammonia and nitrates were causing the problem.
Once the outputs from the NH4/ NO3 analyzer were tied into the blower control circuit D.O. levels were maintained.
The City of Beloit Water Pollution Control Facility is an activated sludge wastewater treatment plant commissioned in November 1991. The plant treats on average 4.6 million gallons of waste per day, and discharges their effluent into the Rock River.
UW Madison Department of Civil and Environmental Engineering was brought to the Beloit Wastewater Treatment Facility with the purpose of analyzing the dissolved oxygen profile along the aeration basins. Using D.O. Probes, the current dissolved oxygen levels could be measured.
To monitor the dissolved oxygen in the aeration basin, the Beloit Wastewater Treatment Facility requested to test four D.O. probes from four different vendors. The four D.O. probes used were the Thermo Scientific RDO, MJX Oxix, ATI Model Q45D-ODO and Hach LDO. The plant set up the four D.O. probes to monitor different sections of the aeration basin. All the D.O. probes were set up so they all connect to a server provided by ATI. This set up allowed access to the hourly minimum, maximum and average D.O. concentrations that each of the four probes collected.
(excerpts from UW Madison Wastewater Treatment Plant Design Fall 2010)
"To see which D.O. meters provided the least variation from the average values, we calculated the concentration differences between the average daily value and the minimum concentration, and the daily value and maximum concentration......Overall, we feel that all the meters are fairly accurate and will doa sufficient job in measuring the D.O. concentrations for blower efficiency monitoring and operation. However, we would advise not to use the HACH monitor as it is the only sensor of the four that requires periodic wiping of the sensor with a wet rag for continuous measurements. We prefer ATI most as it has the highest range and second highest accuracy measurements according to the manufacturer specifications. Also, in our twelve day monitoring period, the ATI Sensor had the lowest variation between minimum, maximum and average daily D.O. concentrations."
Click here for full UW Madison Report
KROHNE MASSMETER FOR HIGH STRENGTH WASTE
A premium Cheese Manufacturer was diverting high strength waste to a holding tank using a refractometer. The refractometer required daily cleaning and had low sensitivity. Due to the nature of the process water, the light source lenses would coat over. The result was inaccurate readings and overloading the treatment plants.
The customer called for help and Synergy installed a Krohne Optimass Straight tube Massmeter which worked right out of the box. Process water was being properly diverted and because of the straight tube design, the meter does not require cleaning. The customer no longer has to worry about inaccurate readings or overloading the plant.
Click here for a Technical Data Sheet
EFFECTS OF HN4 & NO3 ON DISSOLVED OXYGEN
A wastewater treatment plant in southeastern Wisconsin was having control issues in their oxidation ditches. The D.O. readings were spiking at random times. The plant initially thought there was was a problem with the D.O. sensors. Two sensors were rebuilt and a third was replaced, however the problem persisted. A combination NH4 & NO3 sensor along with a dual output analyzer was installed and within the first 48 hours, the problem was identified. As the graph below shows, high levels of ammonia and nitrates were causing the problem.
Once the outputs from the NH4/ NO3 analyzer were tied into the blower control circuit D.O. levels were maintained.
