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3715

Laboratory Practices: Biochemical Oxygen Demand (BOD)

1.0

Wastewater

CEU Plan

Bill Edgar

wwedgar@ceuplan.org

352-754-1259 Ext.

Partner Website

This course will introduce the student to the BOD5 procedure, explain the various facets of the test, provide a detailed standard operting procedure (SOP) procedure for analyzing samples for BOD5. This one hour component of an overall Laboratory Practices - complete course will teach you how to calculate BOD5 and discuss various troubleshooting procedures. The instructor, Margaret Doss, has years of experience in Laboratory Practices. Her step-by-step procedures will provide a reinforcement for your continuing education, as well as, assist entry level operators with the fundamentals utilized in wastewater laboratory practices. Check her instructor's page for further courses within this series. Biochemical oxygen demand (BOD) is one of the conventional pollutants listed in the Code of Federal Regulations, and most point source dischargers with an NPDES permit have a permit limitation for BOD. This course defines BOD and discusses various concepts related to the BOD test, such as seeding and dilution water. Proper sample collection, the preservation technique, and the approved holding time are presented. A step-by-step analytical procedure based on an approved regulatory method is given, and the equipment and apparatus necessary for the procedure are listed. The mathematical calculations are explained and demonstrated. Real-life troubleshooting situations, and the subsequent corrective actions, are described.

Basic thru Intermediate

* How to set up and run a Bod5 test How to trouble shoot the test How to properly clean and store the test equipment * I learned A LOT from this course: the procedure for running a CBOD5 test; the various ways a sample can be contaminated, and that a DO probe is used. While I don't run CBODs personally, it's invaluable to know how it's done at the lab... very involved, with lots of bottles used! * how to make BOD nutrient buffer - troubleshooting To better our lab practices and improve efficiency. * 1. The procedure for BOD sampling. 2. The calculations necessary to come up with BOD. 3. That there is more than a BOD5 sample possible. I do not do the lab work myself, so this has given me insight into what is happening in the lab. It also helps me to understand why and when to take samples correctly. * I learned about BOD5 procedures, seeding samples and incubater temperatures. It will help me understand how my BOD samples are run by the lab *

Wastewater operators and lab technicians

Virtual Asynchronous