Symptoms
Mosquitoes presence
Main causes
Presence of stagnant water and/or dead zones in the lagoon where a abnormal common weed growth is observed
Remedial actions
Remove common weed
Use of insecticides (in this case the interruption of the incoming wastewater for 1 –2 days is needed)
Typical operational data for different lagoon are presented in table 3.6.1.
Tab. 3.6.1 Typical operational data for lagoon type
In table 3.6.2 a typical lagoon operation sheet is reported; the reporting frequency depends on the WWTP size; details on routine inspections, lubrication and adjustment, performed by the operator, should be reported as well.
Tab 3.6.2 Lagoon operation sheet