This two-lesson unit on rotating biological contactors (RBC's) is designed to be used with students who have had some experience in wastewater treatment and a basic understanding of biological treatment. The first lesson provides information on the concepts and components of RBC treatment systems. The second lesson focuses on design operation and…

This student manual provides the textual material for a unit on rotating biological contactors (RBC's). Topic areas considered include: (1) flow patterns of water through RBC installations; (2) basic concepts (shaft and stage); (3) characteristics of biomass; (4) mechanical features (bearings, mechanical drive systems, and air drive systems); (5)…

This six-chapter handbook is concerned with the proper care and maintenance of microorganisms recovered from water and wastewater samples. These microorganisms must be cultured and identified to determine not only what kinds of cells were present in the original sample, but also what concentrations they appeared in. The skills covered are basic to…

Described is thin-layer chromatography (TLC), a technique that can be conveniently used in the laboratory to generate evidence supporting the principle that degrees of biochemical similarity reflect degrees of evolutionary relatedness among organisms. (Author/PEB)

This document is an instructional module package prepared in objective form for use by an instructor familiar with alkalinity, volatile acids and carbon dioxide determinations for an anaerobic sludge digester. Included are objectives, instructor guides, student handouts and transparency masters. This module considers total and bicarbonate…

This document is an instructional module package prepared in objective form for use by an instructor familiar with multiple tube and membrane filter techniques for determining fecal coliform concentrations in a wastewater sample. Included are objectives, instructor guides, student handouts and transparency masters. This module considers proper…

Examines the ways in which different forms of interpreting can be practiced in the language laboratory, and implications for teaching strategies and laboratory design. (AM)

Presents Latin square mathematical techniques for assigning laboratory partners so that each pair of individuals work together only once. (MLH)

This course is designed for those requiring an introduction to instruments commonly used in water pollution analyses. Examples are: pH, conductivity, dissolved oxygen meters, spectrophotometers, turbidimeters, carbon analyzer, and gas chromatographs. Students should have a basic knowledge of analytical chemistry. (CO)

This course is intended for personnel who have an operational or administrative responsibility for the design and use of bioassay and biomonitoring, and who have no experience in conducting static bioassays. The training consists of classroom discussions, laboratory exercises and demonstrations, and demonstration and observation activities. (CO)