Course Glossary

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This shows the specialized terms used in EarthWise Academy. This section contains all the definitions used in the various course glossaries used by each course.

Browse the glossary using this index

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Entries starting with: C

Ca(OH)2

Ca(OH)2
Calcium hydroxide – Slake lime, a white powdery substance that is difficult and unpleasant to handle. Neutralization is rapidly effected.

  • (DBP40) Enhanced Coagulation – Basics (1280)

Calcium hydroxide

Ca(OH)2
– Slake lime, a white powdery substance that is difficult and unpleasant to handle. Neutralization is rapidly effected.

  • (DBP40) Enhanced Coagulation – Basics (1280)

Capital Improvements Planning

A process for considering the future purchase or construction of expensive items.

  • (SEC01) Securing Drinking Water and Wastewater Treatment Facilities 2954

Carbonaceous BOD (cBOD)

The stage of decomposition that occurs in biological treatment processes when aerobic bacteria, using DO, change carbon compounds to carbon dioxide; cBOD is sometimes referred to as "first-stage BOD" because the microorganisms attack organic or carbon compounds first. (Nitrogen compounds are targeted second, sometimes referred to as nBOD or "second stage BOD.")

  • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
  • (BNR02) Nitrification Factors — Suspended Growth Treatment Systems (1821)
  • (BIO10) Estimating Sludge Volume (2343)

Carbonate System

Major acid/base system that produces a chemical reaction in water distribution systems. The carbonate system is comprised of:

  • Carbonic acid (H2CO3),
  • Bicarbonate (HCO3), and
  • Carbonate (CO32)

 

    • (LCR10) Lead and Copper Rule — Basics (1423)

Cationic

An ion with a positive charge.

  • (COA01) Coagulation – Part 1: The Chemistry of Coagulation (1248)
  • (COA02) Coagulation – Part 2: Coagulation Chemicals (1249)

cBOD

cBOD (Carbonaceous BOD)

The stage of decomposition that occurs in biological treatment processes when aerobic bacteria, using DO, change carbon compounds to carbon dioxide; cBOD is sometimes referred to as "first-stage BOD" because the microorganisms attack organic or carbon compounds first. (Nitrogen compounds are targeted second, sometimes referred to as nBOD or "second stage BOD.")

  • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
  • (BNR02) Nitrification Factors – Suspended Growth Treatment Systems (1821)

CCR

CCR -Consumer Confidence Report

An annual water quality report that community water systems deliver to their customers.

  • (CCR01)Consumer Confidence Report (CCR) Overview (2338)
  • (PNR03) Public Notification – Delivery for CWSs [2326]

CCT

CCT - Corrosion Control Treatment

Water treatment that minimizes the lead and copper concentrations at users' taps while ensuring that the treatment does not cause the system to violate any primary maximum contaminant level.

  • (LCR10) Lead and Copper Rule – Basics (1423)
    (LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)

Critical Asset

Components of a water or waste water treatment system that are necessary to meet mission objectives (providing drinking water that meets or exceeds the National Drinking Water Standards, providing adequate water pressure to meet public safety needs, maintaining water service to critical users, maintaining wastewater collection system to protect public health, and providing wastewater treatment that meets the National Pollution Discharge Elimination System standards.
  • (SEC01) Securing Drinking Water and Wastewater Treatment Facilities 2954

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