为了得到准确的系统模型，对控制设备及现场监测仪表的特性做了充分了解，并且具体分析了污水处理的每一个工艺流程。
In order to obtain an accurate system model, this thesis describes the status of WangYi sewage disposal station in JiangHan oil field and analyzes every process of the system.
本文首先对装置的工艺流程和化学物质进行了简要的分析，并对每一个子系统的关键设备可能出现的安全故障进行了详细分析。
In the thesis, firstly we analyze the craft process of the device and expatiate the safety faults in key equipments of every subsystem which maybe to appear.
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