Application Of IRP In The Demand Management Of Municipal And Industrial Water Consumption In Beijing

The paper applies the concept of Integrated Resource Planning in the domestic water resource management for the first time. Integrated Resource Planning is a kind of water demand management, which is composed of water demand forecasting, technical methods and nontechnical methods to increase water supply and reduce water demand. Urban water consumption is mainly composed of municipal and industrial water consumption.Aiming at the intensifying contradiction between municipal and industrial water supply and demand in Beijing, the author chooses the grey system theory as the basis to create the grey model, with a weakening factor advancing the forecasting precision of the model, and forecasts the amount of municipal and industrial water demand between the year 2006-2010 in Beijing and the shortage of water amount on condition that P=50%, P=75% and P=95% in 2010. Then the author uses the technical methods to enhance the amount of water supply and reduce the amount of water demand, and calculates the quantitative results. Water supply will be enough for water demand when P=50% and P=75%, and the surplus amount will make an allowance to agriculture or re-circulate ground water. When P=95% they can also be equal with the amount 0.96×109m3 transferred from the Project of South-to-North Water Transfer. At the end of the paper, considering the experiences of the countries which have successfully carried out the IRP and the specific situation of Beijing, the author applies the nontechnical methods of IRP: water price, system of management, policy, law, propagandize and education. Because of lack of data in these aspects the paper can't make a quantitative calculation in the degree and economic feasibility of the impact of nontechnical methods. But these nontechnical methods will bring us active impact and have the characteristics that are low cost of unit amount of conservation and long period of taking effect.