Course Glossary


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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B

Basicity

The concentration of OH- ions in a solution, measured as pH or, alternatively, pOH. A solution is basic if it has a pH higher than 7.0 or a pH lower than 7.0.
  • (DBP43) Jar Testing for Process Control of Conventional Filtration: Part 1 (2019)

Biochemical Oxygen Demand

Biochemical Oxygen Demand — BOD A measure of the oxygen required to break down organic materials in water using biological means. The amount of oxygen required to oxidize any organic matter present in water during a specified period of time, usually 5 days. It is an indirect measure of the amount of organic matter present in water that is used to monitor natural waters and processed effluents discharged into natural waters.
  • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
  • (BNR02) Nitrification Factors — Suspended Growth Treatment Systems (1821)
  • (BIO10) Estimating Sludge Volume (2343)

Biological Treatment

Microrganisms growing and reproducing in a controlled environment are used to partially stabilize (oxidize) organic matter.

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

Biosolids

Nutrient-rich organic material that are produced from the stabilization of sewage sludge and residential septage that meets specific quality criteria and are suitable for land application.

  • (BIO01) Biosolids Agronomic Loading Rates Part 1 (1247)
  • (BIO02) Biosolids Agronomic Loading Rates Part 2 – Manure (1484)

Biosolids (Exceptional Quality)

Biosolids that meet stricter pollutant and pathogen reduction criteria.

  • (BIO02) Biosolids Agronomic Loading Rates Part 2 – Manure (1484)

Biosolids (Non-Exceptional Quality)

Non-exceptional quality biosolids are biosolids that meet specified pollutant and pathogen reduction criteria. Criteria for non-exceptional quality biosolids are less stringent than criteria for exceptional quality biosolids.

Note: The term 'Biosolids' can be used to refer to all categories of biosolids collectively, or can be used to refer specifically to the category non-exceptional quality biosolids.

  • (BIO02) Biosolids Agronomic Loading Rates Part 2 – Manure (1484)

BOD

BOD — Biochemical Oxygen Demand

A measure of the oxygen required to break down organic materials in water using biological means. The amount of oxygen required to oxidize any organic matter present in water during a specified period of time, usually 5 days. It is an indirect measure of the amount of organic matter present in water that is used to monitor natural waters and processed effluents discharged into natural waters.

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

Booster Chlorination

Water is treated with an additional boost of chlorine from within the distribution system.

Typical Water System showing Chlorine Booster Station

  • (DBP20) DBP Rule Monitoring and Reporting for PWSs Using Chlorine Dioxide (1278)

Bottled Water System

A public water system that provides water for bottling in sealed bottles or other sealed containers. The term includes, but is not limited to, the sources of water and treatment, storage, bottling, manufacturing and distribution facilities. The term does not include a public water system that provides only a source of water supply for a bottled water system and excludes an entity providing only transportation, distribution or sale of bottled water in sealed bottles or other sealed containers.

  • (DBP15) DBP Rule – Maintaining Compliance for Pa. PWSs using Chlorine/Chloramines (1570)
  • (TCR01) Total Coliform Rule – Overview (1424)
  • (TCR02) Total Coliform Rule – Monitoring And Reporting Requirements (1425)
  • (TCR03) Total Coliform Rule – Maintaining Compliance (1426)

Bottled, Vended, Retail, & Bulk-delivered Water Systems

Bottled, Vended, Retail, & Bulk-delivered Water Systems – (BVRB)

  • (TCR01) Total Coliform Rule – Overview (1424)
  • (TCR02) Total Coliform Rule – Monitoring And Reporting Requirements (1425)
  • (TCR03) Total Coliform Rule – Maintaining Compliance (1426)

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