Chen Bridge Zhengzhou Sewage Treatment And Reuse Project Evaluation

Early in the 20th century,30 years, the United States and Sweden had already begun after the project evaluation.70 to the 20th century, project evaluation and gradually formed a relatively complete set of management and evaluation system. With the social development, environmental pollution has become more prominent. Although a lot of energy into China each year for water pollution control work, but there are many problems. So, the sewage treatment facilities need to make a Evaluation of investment projects is necessary.This article in the collection, study abroad on the basis of a large number of literature by Chen Bridge in Zhengzhou City sewage treatment and reuse projects running process indicators and economic indicators for analysis, after appropriate evaluation system, and using profit and loss analysis and Sensitivity analysis of two methods of economic analysis and evaluation. Chen Through in-depth analysis of wastewater treatment and reuse Bridge project process operating characteristics of the indicators to determine the number reflects the operation of the project process indicators group. Then, the distinction of the importance is by way of giving different weights to different indicators. Finally, the measured values of each indicator with the standard or design the extent of the value of the difference between the weighted sum to arrive at the final environmental benefits of the project evaluation results. The results can to a certain extent reflect the project's environmental benefits, but also can be compared between different projects, to facilitate cross compared.This study mainly in the features and innovations:①In-depth study of the characteristics of the sewage treatment plant project, based on established benefits to air, water and sound environmental benefits environmental benefits mainly three types of indicators of the evaluation index system.②The importance of different weights to distinguish between different indicators.③Evaluation presented by the design value and the actual value of the degree of difference between the weighted sum of the evaluation results of calculation.