Chemical Symbols
Anaerobic Digestion
Activated Sludge
Safety
Disinfection
100

H2O

Water

100

Which type of bacteria are the "medium temperature" bacteria?

Mesophilic 

100

The type of sludge that is best for the activated sludge process

Good sludge 

100

If you have an uncontrollable chlorine leak.. who do you call?

Chemtrec

100

UV nanometers range

250-260

200

NaOH

Caustic Soda or Sodium Hydroxide 

200

What gas makes up the majority of an anaerobic digester?

Methane (CH4)

200

Most common filament and hardest to get rid of 

Nocardia 

200
Globally Harmonized system contains _____ that should be easily identifiable no matter what language you speak or where you live.

Pictograms or Symbols 

200

Cl2+ Moisture=

Hypochlorous or Hydrochloric Acid

300

NH3

Ammonia 

300

How many degrees per day can you change the temp on an anaerobic digester

1 degree per day 

300

Indicators of old sludge 

Nematodes and Rotifers 

300

If you have to release an extremely hazardous substance, in what time frame must you alert the government?

As soon as possible or practicable 

300

What is used up in the reaction with chlorine and organic compounds 

Chlorine Demand 

400

H2SO4

Sulfuric Acid 

400

What is the first sign of trouble in an anaerobic digester?

Volatile acid: alkalinity ration

400

In winter or the cold the bug activity does what?

Slows down 

400

LOTO tags must have the name and signature of the person who locked the switch out and???

Can only be removed by that person

400
Chlorine cylinders that weigh 100-150 lbs should be transported....
Vertically by use of a hand truck 
500

Ca(OH)2

Lime 

500

First remedy for a sour digester

Stop feeding 

500
Over returned or septic sludge indicator organism 

Tardigrade or water bears 

500

What are the 3 most common diseases associated with the ingestion of wastewater?

Typhoid, Cholera and Dysentery 

500

The process of destroying all organisms 

Sterilization