waste water ch.13
Card Set Information
waste water ch.13
florida waste water class c
Receiving water measurements are as important as the in plant measurements because the ultimate purpose of theplant is to protect the receiving waters
The operating procedures for effluent discharge to surface streams is similar to other treatment processes.
A water quality sampling program must be prepared in amanner that will produce accurate and useful results
Always plan ahead to get maximum benefit from a receivingwater sampling program
Effluent discharge, reclamation, and reuse involves significant maintenance considerations including pumps.
What are "performance evaluation" tests?
In-plant measurements that show the results of an individualunit process or the entire plant
What are "process control" tests?
In-plant measurements that assist the operator in decidinghow to operate a unit
What is the purpose of receiving water measurements?
To determine the effect of the waste discharge on the receiving waters and on the beneficial uses of the receiving waters
Under which condition might emergency effluent storage facilities be used?
When a roxie waste spill into the collection system occurs
What does an operational strategy consist of?
Doing everything possible to minimize the discharge of pollutants to the receiving waters
What must you understand in order to plan a water quality survey?
The reasons for, or the objectives of, the survey
Why should the plant effiuent be discharged below the surface of receiving waters at all times?
To prevent complaints about foaming and discoloration of the receiving waters
How can the diffusers in an outfall be prevented from clogging?
By maintaining a minimum outlet flow or velocity
Why are reclamation and reuse becoming popular in many areas?
Due to stringent requirements for direct discharge
Due to water shortages
Which water uses have water quality indicators that must be controlled for successful reuse?
Water for livestock
Water for wildlife
How can operators detect adverse impacts on receiving waters caused by the treatment plant effluent? By noticing
Visible floating substances
which items could be indicated when odors are noticed in receiving waters as a result of the discharge from a treatment plant effluent?
A failure in a treatment process in the plant
The discharge of an industrial waste into the collectionsystem
By which methods can a stored effluent containing toxic wastes be properly discharged?
Allow the stored water to become concentrated by evaporation in the storage pond and then dispose of the toxic waste in an approved manner
Return the stored water to the plant for treatment
Slowly add the stored water to the treated effluent
Treat the stored water chemically
When troubleshooting disinfected effluents, which indicators/observations could be signs of trouble?
Unable to maintain a chlorine residual
Unable to meet coliform requirements
What are the types of receiving water monitoring programs
Stream or water quality survey
Sudden changes in effluent constituent concentrations maybe due to which factors?
Change in industrial waste discharges
Change in influent characteristics
Change in plant budget priorities
Sudden increase in flow quantity
Every sample bottle must be identified and should have attached to it a label or tag indicating what information?
Air and water temperatures
Date and hour
Exact location where the sample was collected
Name of the collector
Which safety precautions should be exercised when collecting water samples?
Select sampling "stations" where safe access is possible during all seasons of the year
Use snap-on safety belts when leaning over bridge railings or stream banks
Wear a Coast Guard-approved life jacket when sampling from a boat
Wear a flagging vest (bright red/orange) to alert vehicular traffic of your presence
When sampling on a bridge, be sure there is enoughroom for the person collecting the samples and traffic