TAILIEUCHUNG - Wiley wastewater quality monitoring and treatment_9

Tham khảo tài liệu 'wiley wastewater quality monitoring and treatment_9', ngoại ngữ, anh văn giao tiếp phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 158 Monitoring in Rural Areas this means that the system is not as fully automated as some might hope and that regular visits to the stations by employees should be foreseen. Also a too complex black-box concept of the system leads to a significant loss of data. The processing of the sensor signal to data should be transparent showing what can be done by using PC-based modules for the control of the station. A web-based communication enables remote control of the stations and the integration of the data into databases. This concept also allows for a full remote control of the station by authorised persons and a limited accessibility for data consultation by users through the web. A better spatial representation can be obtained by embedding the monitoring and the modelling in a GIS system Vivoni and Richards 2005 . CONCLUSIONS AND PERSPECTIVES Monitoring in rural areas needs a different approach than in urban areas. The pollution in rural areas cannot be measured at certain points along the water body but can only be estimated by making evaluations of the water quality together with information on what and how many polluting substances are applied in the area. Models describing all processes on those substances before entering the water can provide a means to evaluate the magnitude of pollution coming from diffuse pollution and to evaluate scenarios for diffuse pollution reduction. Specific data are needed to calibrate and build those models. Therefore the traditional cycle in water management should be inversed. Instead of starting from the data set to select an appropriate tool and hence use this tool for management one should first define the problem select a tool that can support this problem and then design an appropriate monitoring program to feed the tool. In that way money is spent to generate primarily the information that is indeed needed. A closer cooperation between monitoring and modelling efforts will make sure that models for diffuse pollution .

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