Chapter One Test

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

Chapter One Test

This test will cover Chapter One (1) content and give a summary of your answers after completion. All blanks below are indicated by __________ ten (10) blanks, this number is arbitrary and should not be used to indicate answers by selections of allowed blanks.

Email *

Enter your name, First and Last. *

Enter your Company, School or Organization *

Wastewater leaving the treatment plant into the receiving water body or receiving treatment plant is referred to as: *

Influent

Effluent

Clarifier

Sludge

Sludge wasted from the RAS (or in some instances the aeration basin) is referred to as: *

RAS

MLSS

MLVSS

WAS

__________ are responsible for the majority of biological wastewater treatment. *

Stalked ciliates

Rotifers

Archaea

Bacteria

Wastewater bacteria prefer pH values between: *

7.0 to 8.3

5.5 to 6.5

9.0 to 10.7

3.0 to 4.5

Residual alkalinity levels of >__________mg/L are recommended in the filtered mixed liquor prior to the final liquid/solids’ separation process (i.e. clarifier or DAF) *

100

300

When nitrification occurs alkalinity values __________. *

Increase

Decrease

Remain neutral

Double

Sludge Retention Time is calculated by __________. *

multiplying the RAS rate by the Effluent Flow Rate (EFR).

multiplying the mixed liquor concentration by the aeration tank volume.

sludge Retention Time divides total lbs solids inventory by lbs of solids leaving per day.

leaving a settlometer test in the lab and recording the time for the sample to float.

Hydraulic Retention Time is calculated by __________. *

measuring the amount of daily precipitation in proportion to the effluent flow rate.

measuring the amount of time water is present in a specific area.

comparing the difference between influent and effluent flow rates.

determining the lbs. of water in the system and dividing by the MLSS concentration.

Is 1.1 mg/L DO in the aeration basin always considered “low DO”? *

True

False

__________ and __________ are macronutrients for wastewater bacteria. *

Copper and Sulfur

Magnesium and Cobalt

Nitrogen and Phosphorous

Nitrogen and Copper

Inline DO probes should always be placed in the __________ portion of the aeration basin. *

back

front

selector zone

splitter box

Total Inorganic Nitrogen (TIN) consists of __________, __________, and __________. *

Protein, Polysaccharide, and Amino Acids

Ammonia, Nitrate, and Nitrosomonas

Ammonia, TKN, and Amino Acids

Ammonia, Nitrate, and Nitrite

Orthophosphate residuals should be checked by __________. *

measuring total phosphorous in an effluent composite sample.

measuring total phosphorous in an effluent grab sample.

measuring orthophosphate in the filtered mixed liquor prior to the clarifier.

measuring orthophosphate in a filtered RAS sample.

When free DO is no longer available facultative bacteria will utilize __________ as the next electron acceptor. *

Sulfate

Nitrite

Copper

Nitrate

__________ are the most significant factor for selection of wastewater treatment bacteria. *

Influent characteristic

Bacteria added through bioaugmentation

Hydraulic retention times

The frequency of microscopic evaluations

Submit

Clear form

Never submit passwords through Google Forms.

This content is neither created nor endorsed by Google. Report Abuse - Terms of Service - Privacy Policy

Forms