Glossary U-W

 
Ultimate Biochemical Oxygen Demand (BODu) The total amount of oxygen required to oxidize any organic matter present in a water, i.e. after an extended period, such as 20 or 30 days.
Ultimate disposal The process of returning residuals back to the environment in a form which will have the minimal or reduced negative environmental impacts.
Waste Minimization The elimination or reduction of a waste prior to its generation. This is accomplished by process changes rather than waste treatment methods.
Wastes 1. Unwanted materials left over from a manufacturing process.

2. Refuse from places of human or animal habitation.

Wastewater Consumed or used water from a municipality or industry that contains dissolved and/or suspended matter.

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