| Summary: | 碩士 === 弘光科技大學 === 環境工程研究所 === 104 === Water treatment technology in Taiwan has been through a course of rapid and continuous development. However, one issue has also existed when the water resource recovery (wastewater treatment) facilities were launched into operation. That is, the designs of such facilities have failed to fully address the unique characteristics of the water resource (wastewater) they were intended for, and the main causes have been attributed to inadequate hardware design, operation and maintenance. This research aims to study the effectiveness of water resource recovery (wastewater treatment) facilities through case studies, covering evaluation on the functions of each operation unit and tracking of the water quality throughout the process of treatment. The studies were focused on exploring the adequacy of the functions and operational criteria designed for the respective water resource recovery (wastewater treatment) facilities and the results were provided for reference to facilitate facility redesign and improvement in pursuit of maximum effectiveness in water resource recovery (wastewater treatment).
Researchers carried out first stage evaluation at one water resource recovery and two industrial wastewater treatment plants on August 7th 2015. The first-stage evaluation focused on the treatment processes, wastewater reporting, water pollution prevention policies and analysis on the basic data of the treated water resource (wastewater). The team also tested the operational procedures for water resource recovery (wastewater treatment) and the processing capabilities of each tank unit, as well as carried out sampling for water quality testing.
The second stage sampling operation was carried out on September 11th 2015. In this stage, the researchers discussed the results of evaluation and water quality testing derived from the first stage with the staffs of the water resource recovery (wastewater treatment) plants. The second stage sampling aimed to further verify the data derived in the first-stage sampling and expand the scope from the results of first-stage evaluation to facilitate improvement on the water resource recovery (wastewater treatment) functions.
Through the two-stage evaluation, the researchers consolidated the information derived from the three water resource recovery (wastewater treatment) plants, including the issues presented in on-site operations. Based on the derived information, the researchers further developed solutions and implemented the solutions to facilitate improvement of the water resource recovery (wastewater treatment) operations. Results of the studies indicated that the major issue causing the ineffectiveness of water resource recovery (wastewater treatment) plants can be attributed to the original design of the systems, which failed to address the unique attributes of the water to be treated and lacked the mechanisms that would enable the operators to obtain real-time information on water quality. Such deficiencies in turn resulted in operations under inadequate criteria in terms of chemical dosage, treatment volume and proper load of each tank.
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