Pa. DEP Operator eLearning Center

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 that meet stricter pollutant and pathogen reduction criteria.

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

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 — 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)

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

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

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)

An ion with a positive charge.

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

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)

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

DBT - Design Basis Threat

Description of a specific adversary and mode of attack that has a degree of likelihood of occurring.

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