Application Study of Integrated Treatment Device for Treating Aquaculture Tail Water

Authors: Haoran Zheng, Hong Shan, Qing Wang*, Dan Wu, Yang Xue, Yuxi Shen, Ying Wang

DOI: 10.23880/ijoac-16000340

Volume 8, Issue 4

Abstract

To reduce the pollution load of aquaculture tail water and improve the quality of the aquaculture water environment, this study constructed an integrated treatment device. This device utilizes the complementary and synergistic effects of inclined plate sedimentation, biochemical reaction, and activated carbon filtration processes. The effectiveness of the device in purifying aquaculture tail water and its adaptability to changes in water quality were evaluated and analyzed. The results showed that, under continuous operation for processing low concentration tailwater (24 hours), the removal rates of suspended solids and permanganate index could not be calculated due to low content in the tailwater. The total phosphorus removal rate ranged between 9% and 22%, and the total nitrogen removal rate was around 25%. For high concentration tailwater (48 hours), the removal rate of suspended solids ranged from 18% to 40%, the total phosphorus removal rate was between 12% and 32%, the total nitrogen removal rate was maintained between 5% and 18%, and the removal rate of permanganate index ranged from 4% to 16%.

Keywords: Aquaculture Tail Wate; Integrated Treatment Device; Water Purification

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