The tasks of this project were proposed to maintain the normal operation for the constructed wetland at Guandu Natural Park, to promote environmental education for wetland, and to adjust the affiliated instruments in wetland. The duration of tasks was assigned for one full year since March 1 of 2016 to December 31 of 2016. After the completion of this project, there are several accomplishments as following: The constructed wetland may function as a water treatment site on daily 2,000 CMD treatment capacity normally, which the average concentrations of DO, BOD5 and NH3-N in the effluent of wetland were approximately 4.3 mg/L, 2.3 mg/L, and 0.2 mg/L, respectively. The total removal of assigned pollutants has been reached as 1,449 kg of BOD5, 650 kg of ammonia, and 15,329 kg of suspensed solids during one year operation. There were 440 persons engaged in environmental education program. They have visited the wetland site and realized this new instrument for wastewater treatment. This experience has helped them to cooperate with nature to make environment better.

Constructed wetland, operation and maintanace