The electrosorption technology for removal of chloride ion is researched by the static adsorption experiment, and various factors of the impact of the removal efficiency, combined with the removal of water quality and water treatment requirements, best adsorption conditions is identified that voltage is 5V, plate spacing is 1.0cm, adsorption time is 15min. Electrosorption technology in wastewater recycling project has certain benefits at economic, environmental and social, and have certain application value.

The two-dimensional unsteady heat transfer model is been established. Analyzing on heat storage-release property of phase change thermal storage device within the fluid parallel spiral pipes in various conditions, suggestions are put forward to strengthen thermal storage for the device.

Abstract. The relationship of pre-stressed concrete (PSC) beam natural frequency and pre-stressed force is difficult to described accurately with mechanical model. The past experimental data are collected. Then five unbonded post-tensioned PSC beams are designed. Frequencies and damps are collected in the dynamic experiment of five PSC beams. Radial basis function neural network is constructed to identify the natural frequencies of prestressed beam with different levels prestressing force based on previous test data and new dynamic test beam data. Then the input and output node numbers of neural network are selected and the appropriate training algorithm and expansion coefficient is determined. In order to verify that the network performance, one prestressed concrete beam test data are left to simulation test. Simulation results show that the radial basis function neural network is feasibility to recognize the frequency of PSC beams.

This paper, through the analysis of the serious problems of jiao River such as the deterioration of water environment and water pollution, puts forwards the water protection measures, on the basis of which we appeal to the governments at all levels to attach great importance to jiao River pollution management and actively improve jiao River water environment. At the same time, the paper hopes all of our citizens could contribute to the improvement of jiao River environment.

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