Design of biological early warning system for water quality based on ERT

B L Wang, X H Xu, Z Y Huang, H F Ji, H Q Li

State Key Laboratory of Industrial Control Technology, Department of Control Science and Engineering, Zhejiang University, blwang@iipc.zju.edu.cn

ABSTRACT

Electrical resistance tomography (ERT) is a common technique in process tomography research, but it is rarely used in the environmental monitoring field. In this study, a biological early warning system based on the principle of ERT is designed to perform monitoring of water quality, especially the water pollution accidents. The alcohol solution is adopted as a simulation of pollutant to stimulate the zebra fish, which is selected as the tested organism and their behavioural responses are compared between the pre-exposed and post-exposed to the pollutant. Experimental results show that the proposed system is effective in analyzing the water quality and realizing the warning of water quality variation for polluted water.

Keywords water quality, ERT, behavioral responses, biological early warning system