Using Haoshuichuan watershed as an example, the infiltration deep of rainfall was analyzed, the comparison analysis of the water reduction between terrace and slope land were worked out through the results of penetration test and soil moisture. The result shows that the ratios of store water in soil to rainfall are 0.81 in terrace and 0.72 in slope land.

This article has described the biosorption of heavy metal ions using agricultural wastes as a potential adsorbent. The modified methods, the characterization methods, the parameters influence, the adsorption kinetics, the adsorption isotherms, the adsorption thermodynamics and the regeneration of biosorbents have also been discussed. Moreover, the future development of biosorbents has been prospected.

The enrichment ratio of 10B in the top and bottom component with the dynamic change of feed fluctuation and periodic wave on the separation process of the boron isotopes separation by chemical exchange method had been studied and a dynamic model was set up. The results indicate that when the feed amount is in the column load limit, the dynamic responses of top and bottom separation plate match well with the condition when feed flow rate is invariable. While when the exchange column is overloaded, the feed flow rate variation influences 10B abundance ratio greatly. With the increasing of the fluctuation period, the longer the wave period, the bigger the amplitude around the average line in top product. However, big increase of feed fluctuation will reduce the 10B abundance ratio of bottom product.

With the expansion of Ningdong Energy and Chemical Industry Base at Lingwu, Ningxia, water shortage is becoming increasingly serious and then has become one of the main factors in restricting the development of society and economy in the region. In the paper, through a systematic analysis of the re-use ways of the sewage as well as the water-saving potential for agricultural purposes, it is suggested that water right trading is the solution when part of the surplus can be used for industrial purposes in the Base, thereby leading to a more reliable way of sustainable water supply and a sustainable and steady economic growth in the region.

With the accelerating of the process of urbanization and the rapid increase of the economy and society, the shortage of water resources is becoming more and more serious, and the conflict between the water resources and the economic development is becoming more and more conspicuous. Based on an analysis of the current situation and problems about the water resources in Yinchuan, the writer explores the issue of sustainable use of the water resources in the urban planning and makes proposals on the solutions accordingly.