Treatment system design
The average of wastewater from dairy cattle shed, plants and fish pond
was 300 cubic meters per day and 90% majority comes from the fish pond.
Treatment system consists of a set of stability adjustment for pond wetland
component. Aquatic plants were totally grown in the area 200 square meters,
average depth 75 cm and a series of concrete pond size 3 x 16 x 1.0 cubic
meters was divided into 4 channels. Within each box of the pond have 4 floors
camouflage light net horizontal distance the water flow for keeping bacteria that
decomposed the organic substances and mineral liberation. A constructed
wetland system was 200 square meters that comprise with 3 parts. The
beginning and end of the constructed wetland was deep 60 cm pond planting
Cyperaceae family. The central of the wetland was deep 100 cm planting
floating plants and water lily. The size of earthern facultative pond was 600
square meters average depth 150 centimeters. The air was filled in this pond by
photosynthesis of plants plankton. The pond was located along the wind blow
direction to increase the water recirculation rate.