水中溶解氧含量的检测评价数据

水中溶解氧含量的多少是衡量水体自净能力的一个指标。当水体受到有机物污染，耗氧严重，溶解氧得不到及时补充，水体中的厌氧菌就会很快繁殖，而使水体变黑、发臭，发生丝状菌，滋生影响净化的效果。此数据为政府监管、居民生活以及生态环境提供参考和技术支撑。通过对各送检水内溶解氧含量的检测，依据便捷式溶解氧依法（水和废水检测分析方法），通过检测仪器DZB-712便捷式多电极检测器A006，记录下检测数据，计算公式如下：C02（溶解氧含量）=【（重络酸钾标准溶液ml*浓度mol/L）/体积V（ml)*硫代酸溶液用量V1（ml)*8*1000】/100；通过国家分类标准GB 3838-2002表得出最后的结论判断，水中溶解氧含量检测的结论分为3类，III是三类水，含量≥5mg/L，IV是四类水，含量≥3mg/L，V是五类水，含量≥2mg/L，小于V的标准值就是劣五类水则是不合格需尽快污水处理。

The concentration of dissolved oxygen in water is an indicator for evaluating the self-purification capacity of water bodies. When water bodies are polluted by organic matter, with severe oxygen consumption and insufficient timely replenishment of dissolved oxygen, anaerobic bacteria in the water will multiply rapidly, causing the water body to turn black and emit foul odors, while filamentous bacteria will grow and impair the purification effect. This dataset provides reference and technical support for government supervision, residents' daily lives, and ecological environmental protection.

By detecting the dissolved oxygen concentration in each submitted water sample, following the standard procedures for portable dissolved oxygen detection (Standard Methods for the Examination of Water and Wastewater), using the detection instrument DZB-712 Portable Multi-electrode Detector A006, the test data is recorded with the following calculation formula:
C02 (dissolved oxygen concentration) = [(Volume of standard potassium dichromate solution, mL × Concentration, mol/L) / Volume V, mL × Volume of thiosulfuric acid solution V1, mL × 8 × 1000] / 100;

The final conclusion is determined based on the table of the national classification standard GB 3838-2002. The results of dissolved oxygen concentration detection in water are divided into three categories: Class III water requires dissolved oxygen concentration ≥5mg/L, Class IV water requires ≥3mg/L, and Class V water requires ≥2mg/L. Water with a concentration lower than the standard value of Class V is classified as worse than Class V water, which is unqualified and requires immediate sewage treatment.

搜集汇总

数据集介绍

特点

该数据集包含55条水中溶解氧含量的检测评价数据，采用便捷式溶解氧依法进行检测，依据GB 3838-2002标准进行分类判断，适用于政府监管、居民生活及生态环境的参考和技术支撑。