Wastewater Treatment Level 1 Certification question and answers rated A+ 2023

Wastewater Treatment Level 1 Certification question and answers rated A+ 2023In most activated sludge plants, the waste activated sludge is pumped to waste sludge handling facilities - correct answer True A primary clarifier is used after a trickling filter to settle out sloughing's from the filter media - correct answer False pH general will be affected significantly by a clarifier - correct answer False When starting a trickling filter, slime growth will start to develop on the filter media immediately - correct answer False Rotating Biological Contactors have few moving parts and require minor amounts of preventative maintenance - correct answer True Since the oxidation ditch is operated as a closed system, the amount of volatile suspended solids will gradually decrease - correct answer True Ponds have a consistently high quality effluent - correct answer False Typical disease causing microorganisms include bacteria, viruses and parasites - correct answer True Sulphur dioxide is extremely hazardous and must be handled with caution - correct answer True Algae in ponds use carbon dioxide and bicarbonates to build body protoplasm - correct answer True Which treatment units in a wastewater treatment plant are designed and operated to remove sludge and scum? - correct answer Primary treatment units What is the purpose of free aeration? - correct answer To freshen the water and to separate oils and grease Which program is designed to prevent toxic wastewaters from causing treatment plants to violate their NDPES discharge requirements? - correct answer Pre-treatment facility inspection program During normal operations, which daily operation and maintenance task should be preformed daily in regards to clarifier lubrication? - correct answer Grease all moving parts according to manufacturers specifications and check oil levels in motors where appropriate