Study Guide: General Knowledge

Maintaining your education is important, especially in a career that demands licensing exams. Prove you’re an expert operator by answering this question and others from our Exam Study Guide Series. Take a look at this question on Public Water Systems along with an explanation of the correct answer.Sample question:What is the primary cause of odors in activated sludge processes?A) Poor housekeepingB) Inadequate DOC) Poor primary treatmentD) Inadequate MCRT process controlThe answer is B. Inadequate DO is the primary cause of odors. To correct odor problems, first increase the DO concentration by additional aeration. Second, reduce the organic loading. If these measures fail, the recommended measure