Data on the effects of filters, storage conditions, and chlorination in fluorescence and absorbance wastewater measurements

Data in this repository contain raw fluorescence and UV absorbance measurements of wastewater organic matter related to different wastewater qualities, including primary, secondary and tertiary wastewater effluents, and a wastewater-impacted surface water. Samples stored under different conditions were analyzed at different time of storage over a testing period of 21 days. Surface water and wastewater samples were stored filtered (0.7 μm) and unfilterd at different temperature (i.e.; room temperature, 4 °C, and -20 °C). The repository contains also fluorescence and UV absorbance raw data of chlorinated wastewater effluents. Furthermore, data in the repository include fluorescence and UV absorbance spectra of blank samples obtained filtering Milli-Q water by glass microfiber filters (0.7 μm), polyvinylidene fluoride (PVDF) membrane filters (0.45 μm), cellulose nitrate membrane filters (0.45 μm), and by polyether sulfone (PES) syringe filters (0.45 μm). Ultraviolet light absorbance was analyzed using a Shimadzu UV-1800 spectrophotometer (Kyoto, Japan). Absorbance spectra were measured from 200 to 800 nm at 1 nm intervals in a 1 cm quartz cuvette with Milli-Q water used as a blank. Fluorescence data were collected using a Shimadzu RF-5301PC fluorescence spectrophotometer (Kyoto, Japan) with the scanning range from excitation wavelength 220 nm to 450 nm at an interval of 5 nm, and emission wavelength from 250 nm to 580 nm at the interval of 1 nm. Excitation and emission slit widths were both set at 5 nm.本仓库收录的数据为与不同水质相关的废水有机质原始荧光与紫外吸收测量数据，涵盖一级、二级及三级废水出水，以及受废水影响的地表水。在为期21天的测试周期内，针对不同储存条件下的样品，于不同储存时间点开展了分析测试。地表水与废水样品分别以过滤（0.7 μm）和未过滤的形式，在室温、4 °C及-20 °C三种不同温度下储存。本仓库还包含经氯化处理的废水出水的原始荧光与紫外吸收数据。此外，仓库数据还涵盖使用不同滤膜过滤密理博超纯水（Milli-Q）所得空白样品的荧光与紫外吸收光谱，所用滤膜包括玻璃微纤维滤膜（0.7 μm）、聚偏氟乙烯（PVDF）膜滤器（0.45 μm）、硝酸纤维素膜滤器（0.45 μm）以及聚醚砜（PES）针式滤器（0.45 μm）。紫外光吸收特性采用岛津UV-1800分光光度计（日本京都）进行分析，吸收光谱在1 cm石英比色皿中以200 nm至800 nm的波长范围、1 nm的间隔进行测量，以Milli-Q水作为空白对照。荧光数据通过岛津RF-5301PC荧光分光光度计（日本京都）采集，扫描参数为：激发波长范围220 nm至450 nm，步长5 nm；发射波长范围250 nm至580 nm，步长1 nm。激发与发射狭缝宽度均设置为5 nm。