Data for: Catalytic wet peroxide oxidation of natural organic matter to enhance the treatment of real surface water at urban and rural drinking water plants

The efficiency of the CWPO process driven by an Al/Fe-PILC clay catalyst was evaluated in the removal of dissolved natural organic matter from different real water supplies: either raw or partially-treated water at several stages of drinking water urban plants (three points at three different UPs), or drinking water rural plants (five RPs) were processed at natural and varied conditions of pH, temperature, and environmental pressure. The optimal conditions of the CWPO reaction were refined taking into account the presence of well-known scavenging, inorganic anions in real surface water supplies. Besides, the catalyst preparation from technical-grade reagents was assessed. The catalytic results are analyzed in terms of DOC and total nitrogen mineralization, color removal (456 nm), the evolution of SUVA254, and efficiency of H2O2 consumption, but also taking into account the influence of the physicochemical properties displayed by the input natural water samples (pH, temperature, apparent color, UV254 absorbance, turbidity, alkalinity, and contents of main inorganic anions) on the catalytic performance using statistical tools.

This dataset displays all the raw and treated data regarding the catalytic wet peroxide oxidation of dissolved Natural Organic Matter (NOM) in all, a synthetic surrogate of NOM, and several real surface water samples collected at urban and rural drinking water treatment plants (DWTPs). The catalytic reactions were performed in the presence of Al/Fe-PILC clay catalysts. The data here shown consists of:

1. Physicochemical properties of the Al/Fe-PILC clay catalysts used.
2. Identification of the real surface water samples studied.
3. Average standard deviations for all catalytic responses as a function of the type of water and DWTP, as the quality control of the catalytic data.
4. Characteristics of the statistical optimization of the CWPO degradation of NOM and the experimental data obtained (Factors, levels, covariates).
5. Multiple regression analysis measuring the correlation of the physicochemical properties of the input real water samples over every catalytic response.
6. Final average DOC values for the effluents of every stage of treatment at DWTPs and the CWPO treatment.
7. Current stages of treatment at the urban conventional DWTPs.
8. Composition of the synthetic surrogate of dissolved NOM employed for the statistical optimization of the CWPO catalytic degradation.
9. Estimated response surface plots for every catalytic response and Desirability-based multiresponse surface which allowed establishing the optimal reaction conditions.
10. Measured color removal in urban and rural plants through CWPO treatment.
11. Measured consumption of hydrogen peroxide at urban and rural plants through CWPO treatment.
12. Measured nitrogen removal through CWPO treatment.
13. pHpzc of the Al/Fe-PILC clay catalyst.

本研究以铝铁柱撑黏土（Aluminum/Iron-Pillared Clay, Al/Fe-PILC）为催化剂的催化湿式过氧化氢氧化（Catalytic Wet Peroxide Oxidation, CWPO）工艺效能，通过去除不同实际供水体系中的溶解性天然有机物（Natural Organic Matter, NOM）进行了评价：受试水样涵盖城市水厂（Urban Plants, UPs）不同处理阶段的原水或半处理水（3座水厂共3个采样点位），以及农村水厂（Rural Plants, RPs）的水样（5座农村水厂），实验在自然变化的pH、温度与环境压力条件下开展。本研究同时考量实际地表水中常见的清除剂类物质与无机阴离子的影响，对CWPO反应的最优工况进行了优化。此外，还评估了采用工业级试剂制备该催化剂的可行性。催化性能的评价指标包括溶解性有机碳（Dissolved Organic Carbon, DOC）与总氮矿化率、456 nm波长下的脱色率、SUVA254（Specific Ultraviolet Absorbance at 254 nm）的动态变化规律以及过氧化氢（Hydrogen Peroxide, H₂O₂）的消耗效率；同时借助统计工具，分析了输入天然水样的理化性质（pH、温度、表观色度、UV254吸光度、浊度、碱度及主要无机阴离子含量）对催化性能的影响。

本数据集收录了所有与催化湿式过氧化氢氧化工艺降解溶解性天然有机物相关的原始与处理后数据，其中既包含用于CWPO工艺优化的NOM合成替代物，也包含从城乡饮用水处理厂（Drinking Water Treatment Plants, DWTPs）采集的多组实际地表水样数据。所有催化反应均在Al/Fe-PILC黏土催化剂存在下开展。本数据集包含以下内容：
1. 所用Al/Fe-PILC黏土催化剂的理化性质参数；
2. 本次研究所用实际地表水样的标识信息；
3. 基于水样类型与水厂类型的所有催化响应结果的平均标准偏差，用于催化实验数据的质量管控；
4. CWPO降解NOM的统计优化特征及所得实验数据（影响因子、水平、协变量）；
5. 多元回归分析结果，用于量化输入实际水样的理化性质与各项催化响应之间的相关性；
6. 饮用水处理厂各处理阶段出水与CWPO工艺出水的最终平均DOC值；
7. 城市常规饮用水处理厂的现有处理工艺流程；
8. 用于CWPO催化降解统计优化的溶解性NOM合成替代物的组成成分；
9. 各项催化响应的估算响应面图，以及基于期望函数的多响应面分析结果，借此确定最优反应工况；
10. 城乡水厂通过CWPO工艺实现的脱色率实测值；
11. 城乡水厂通过CWPO工艺的过氧化氢消耗量实测值；
12. 通过CWPO工艺实现的氮去除率实测值；
13. Al/Fe-PILC黏土催化剂的零电荷点pH（pH of point of zero charge, pHpzc）。