Watertreatment - Study guides, Class notes & Summaries

REHS Exam – Water Questions and Answers Graded A Saturated zone all pore spaces filled with water allows water to travel Water table top of saturated zone Vadose zone part of unsaturated zone Flowing artesian well pressure causes water to rise above ground level Aquaclude Confining layer, rock or clay Confined aquifer groundwater below layer of solid rock or clay Aquitard retards flow of water 2 biggest water users 1. Therm-electric power 2. Irrigation Public water system At least 25 p...

Water_Treatment_Study_Test 2023 Multiple Choice Quiz Class III provided by AWTP 1. What term describes the chemical capacity of water to neutralize acids? a. Acidity b. Alkalinity c. Hardness d. pH 2. What should be the sample volume when testing for total coliform bacteria? a. 100 ml b. 250 ml c. 500 ml d. 1,000 ml 3. What is the major health risk of nitrates? a. Methemoglobinemia- Blue Baby Syndrome b. Nervous system damage c. Prostate cancer d. Gastrointestinal effects 4. The...

Investigate immediately. Correct Answer: If a consumer complains about the drinking water characteristics, the operator should record the complaint and Operating ratio Correct Answer: What term is used when a water utility divides its total operating expenses into the total revenue? Daily Correct Answer: How often should operating data, such as flow rate, amount of water treated, dosage of chemical, and reservoir levels be recorded? Document that safe drinking water has been delivere...

Hydrogen and oxygen are two elements that combine to form water (H2O) through a process called electrolysis. However, you can't "make" water by simply combining hydrogen and oxygen, as they are already present in water molecules. Here's a brief overview of the process: • Electrolysis: Hydrogen gas (H2) is produced at the cathode (negative electrode) and oxygen gas (O2) is produced at the anode (positive electrode) when an electric current is passed through water or an electrolyte. • Hydr...