Filter Backwash and Dosing Data

Hazen and Sawyer have provided data from a water treatment plant that utilizes filters to treat water by removing contaminants through physical processes. These filters are maintained with backwashing, which removes particles in the filter by reversing the flow with clean water. The dataset consists of four elements: (i) a data frame containing a time series for sixteen filters, which can be used to visualize headloss; (ii) a list of 16 data frames summarizing the data between each backwash; (iii) a data frame containing a large collection of chemical dosing information; and (iv) a data frame derived from the above elements of the list for the purpose of predicting backwashes.海曾与索耶（Hazen and Sawyer）提供了某水处理厂的相关数据，该厂采用过滤工艺，通过物理过程去除水中污染物以完成水处理。此类过滤器通过反冲洗进行维护：利用清洁水反向冲洗水流以清除过滤器内截留的颗粒物。本数据集包含四个组成部分：(i) 包含16个过滤器时间序列数据的数据框，可用于可视化水头损失(headloss)；(ii) 由16个数据框组成的列表，汇总了每次反冲洗之间的运行数据；(iii) 包含大量化学投加信息的数据框；(iv) 基于上述列表元素构建得到的数据框，用于反冲洗事件的预测。