Shakeel M U, Zaidi S Z J, Ahmad A, Abahussain A A M, Nazir M H
Institute of Chemical Engineering and Technology, University of The Punjab, Lahore, Pakistan.
Laboratory for energy water and healthcare technologies, University of The Punjab, Lahore, Pakistan.
Sci Rep. 2024 Nov 4;14(1):26629. doi: 10.1038/s41598-024-72851-9.
This article presents a comprehensive benchmarking analysis of merit performance factors in the Effluent Treatment Plants (ETP) of the textile industry. The study aims to identify and evaluate key factors that contribute to the efficient operation and performance of ETPs. The performance of ETP was analyzed by valuable data gained from figures of PH, Dissolved oxygen, Dissolved solids, Suspended solids, Density, COD and BOD. The technical trends showed the deviations in the working conditions of Effluent Treatment Plant by variation in temperature. This variation is achieved by varying the settling time of wastewater in the sedimentation tank during the working process. The required dosing, plant efficiency and economic factors were taken into account. The Plant efficiency was determined to be 83.5% at normal conditions of water entering at temperature of 30°C and pressure of 1 atm along with addition of coagulants and flocculants in the wastewater. While the efficiency of the ETP plant was calculated about 88% using a Compact photometer at elevated conditions of temperature such as > 45°C, while at other temperatures the efficiency decreases significantly due to several reasons. The operating time of water treatment was decreased due to the variations in temperature of wastewater while other conditions kept constant like pressure, flow rates of water and chemicals (Polyacrylamide and Polymeric Ferric Sulfate). The usage of coagulants and flocculants at optimum conditions has been discussed in this study.
本文对纺织行业污水处理厂（ETP）的绩效表现因素进行了全面的基准分析。该研究旨在识别和评估有助于ETP高效运行和性能的关键因素。通过从pH值、溶解氧、溶解固体、悬浮固体、密度、化学需氧量（COD）和生化需氧量（BOD）数据中获取的有价值数据，对ETP的性能进行了分析。技术趋势表明，污水处理厂的工作条件因温度变化而出现偏差。这种变化是通过在工作过程中改变废水在沉淀池中的沉淀时间来实现的。同时考虑了所需的投加量、工厂效率和经济因素。在进水温度为30°C、压力为1个大气压的正常条件下，以及在废水中添加混凝剂和絮凝剂的情况下，工厂效率确定为83.5%。而在温度升高（如>45°C）的条件下，使用紧凑型光度计计算得出ETP工厂的效率约为88%，而在其他温度下，由于多种原因，效率会显著下降。在压力、水和化学品（聚丙烯酰胺和聚合硫酸铁）的流速等其他条件保持不变的情况下，由于废水温度的变化，水处理的运行时间减少。本研究还讨论了在最佳条件下混凝剂和絮凝剂的使用情况。
