Exam Study Guide: Fixed Film

Exam Study Guide: Fixed Film

Interested in Tanks?

Get Tanks articles, news and videos right in your inbox! Sign up now.

Tanks + Get Alerts

Maintaining your education is important, especially in a career that demands licensing exams. Prove you’re an expert operator by answering this question and others from our Exam Study Guide Series. Take a look at this question on fixed film processes along with an explanation of the correct answer.

Sample question:

What is the name for the jelly like biomass made up of a large and diverse population of living organisms (such as bacteria, protozoa, fungi, algae and worms) that adheres to the media of trickling filters?

Answers:

A) Fecal coliforms
B) Endogenous residue
C) Zoogleal matter
D) Thermophilic jelly

The answer is C, zoogleal matter, which is a viscous slime that adheres to the media. Most of the population in this mass is aerobic organisms requiring oxygen to function properly.

Source: WEF MOP11 21-4

About the author
Ricky Lallish is the water pollution control program director at the Environmental Resources Training Center of Southern Illinois University Edwardsville. He provides training for entry level operators in the wastewater field and operators throughout the state looking to further their education.



Discussion

Comments on this site are submitted by users and are not endorsed by nor do they reflect the views or opinions of COLE Publishing, Inc. Comments are moderated before being posted.