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,Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf
Terms in this set (360)
Sludge A firm dry cake indicates good filter
Gravity filters Successful Operation depends on suspended solids concentration, even
dispersal of wastewater, filtration rate, and media age
Unit processes Wet oxidation, Pressure Filtration, and Air Stripping are often used for sludge
dewatering
Parshall Flume Generally used to measure flow
Flow measuring device Weirs, Magnetic, and Manometer are examples, excluding Parshall Flume
Wastewater flow Commonly used to establish pollutants discharged, estimate emissions, create
records, and neutralize gases
Rotameter Reliable for measuring flows of Treated wastewater, Untreated wastewater, High
solids wastewater, and High TSS wastewater
Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf
,Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf
Conductivity probes Used to maintain, repair, and troubleshoot Water systems
PLC Typically controls the addition of acid or caustic to a tank, type of treatment
chemistry used, and regulatory standards
pH chart If fixed at 7, check pH probe wiring first
pH system alarms If Tank 2's pH is 5.00 and final pH is 10.5, check Tank 2's pH probe wiring first
pH alarms If Tank 1, Tank 2, and final pH all read 11.00 with both acid pumps running, check
reagent level and pump prime first
pH probes calibration Always clean before calibration to ensure accuracy
Digital vs. analog meters Digital meters are easier to read and repair compared to analog meters
Sulfide precipitation Less effective than hydroxide precipitation in treating metal
Drag-out Plating solution carried over the rinse tank
Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf
, Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf
Oxidation compound Sodium hypochlorite is a common compound used for oxidation
Cyanide treatment Cyanide is converted to Nitrogen and Carbon Dioxide during treatment
Hexavalent chrome Toxic to the environment
Reducing agent Used to treat Sulfide, Phenol, Chromium, and Cyanide
Metal wastes treatment Chemical precipitation is often used for metal finishing wastes
Cyanide solutions If they reach acid pH, Hydrogen cyanide is released
Metal finishing wastes Treated by chemical precipitation to recover metals and reduce sludge volumes
Heavy metal analyses Samples can be preserved by the addition of Nitric acid
Radioactive wastes Commonly from labs and hospitals in treatment plant influent
Pickling acid Nitric acid is an example of a pickling acid
Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf Wastewater Treatment Operations, MA Wastewater Grade II Exam Test.pdf