... presents the principle model of surface vibrator, which can make form and consolidate the concrete mix Mathematical model for the characterizing principle model has been established and the answer is ... mg/l, NO3-N of less than mg/l The system shows good and stable removal efficiency of organic matter and nitrogen without adding an external carbon sources, alkalinity and coagulants The research results ... technology for brackish and salt water appropriate, to contribute to solve water scarcity as well as adapt to climate change, improving the living conditions of people in coastal and island , research...