| 英文摘要 |
There are three major river basins within the jurisdiction of Hsinchu County (Touqian Stream Basin, Fengshan Stream Basin and Xinfeng Stream Basin). After originating in the central mountains, they run westward through the hinterland of the jurisdiction, collecting domestic sewage, industrial wastewater and livestock wastewater on the way. Wait until you reach the downstream alluvial plain and then go out to sea. In recent years, due to the rapid development of county governance, industry and commerce, the environmental load caused by human activities has intensified, which has also led to a rapid increase in river pollution. In order to understand the changes in water quality in the river basins of Hsinchu County and improve the pollution discharge situation of river water bodies, the Environmental Protection Bureau of the Hsinchu County Government publicly selected technical consultants to handle the "112th Hsinchu County Water Pollution Source Inspection and Water and Sewage Fee Collection Inspection Plan and Animal Husbandry Wastewater Ammonia Nitrogen Recovery "Promotion Plan and Water Pollution Prevention and Control Permit Review Plan", in addition to continuing the previous control operations related to water pollution prevention and control, it also enhances the control of public institutions through special management project inspections, expert on-site coaching mechanisms, and facility function evaluations. , prompting the industry to face up to the problem of wastewater disposal in the factory, and put an end to the chance mentality and illegal discharge. A summary of the implementation progress of the current operation (statistical period from January 1 to December 31, 2020) is as follows: 1. Changes in water quality of river water bodies 1. Touqian River Basin: Rivers from January to December 2012 The average pollution index (RPI) is 1.1, which means it is not (slightly) polluted; the DO attainment rate is 100%, the BOD attainment rate ranges from 78.9 to 91.1%, the SS attainment rate ranges from 80.0 to 100%, and the ammonia nitrogen attainment rate is between At 89.8~94.8%; for the six heavy metals, the achievement rate is 100%. 2. Fengshan River Basin: The average river pollution index (RPI) from January to December 2012 was 1.9, which is not (slightly) polluted; the DO achievement rate ranged from 86.7 to 97.5%, and the BOD achievement rate ranged from 36.7 to 48.3 %, the SS achievement rate ranges from 76.7 to 92.5%, the ammonia nitrogen achievement rate ranges from 26.7 to 45.0%; for the six heavy metals, the achievement rate is 100%. 3. Xinfeng River Basin: The average river pollution index (RPI) from January to December in 2012 was 4.1, which is a moderate degree of pollution; the DO achievement rate ranged from 88.9 to 95.8%, and the BOD achievement rate ranged from 11.6 to 20.8% , the SS achievement rate ranges from 81.9 to 93.8%, and the ammonia nitrogen achievement rate ranges from 11.1 to 15.9%; in terms of the six heavy metals, the achievement rate of cadmium, lead, hexavalent chromium, zinc, and mercury is 100%, while the achievement rate of heavy metal copper is between At 52.2~61.1%. 2. Water pollution source inspection and control work (1) Water pollution inspection work is classified into "Hsinchu Industrial Zone Control Project", "Qiejuan Stream Watershed Inspection Project", "Touqian Stream Watershed Inspection Project", "Domestic Sewage Counseling Project", "Public A total of 970 companies (cases) were inspected, and a total of 218 companies (stations) were inspected for water quality inspections under eight types, including "Complaint Project", "Special Project Inspection Project for Scheduled Enterprises", "RATA Audit Project" and "General Audit". The implementation status of each item is explained as follows: 1. Implementation of the Hsinchu Industrial Zone Inspection Project (1) The Hsinchu Industrial Zone Sewage Plant has been implemented 12 times (a total of 120 samples were taken 8 times during the day and 4 times at night): all met the standards for discharged water; RD02 ~RD10 has a small number of cases where the pH or EC is on the high side. (2) Hsinchu Industrial Zone - Ammonia nitrogen management companies have been inspected 10 times: On-site inspection results show that the sewage treatment facilities of each factory are operating normally, and the pH test is between 6 and 8, all in compliance with the standard value of discharged water; the conductivity is between 712~28000μs/cm; ammonia nitrogen concentration ranges from 3~178mg/L. (3) The copper-containing enterprises in Hsinchu Industrial Zone have been inspected 20 times: the test results in the first half and the second half of the year did not exceed the standard. The copper ion concentration in the discharge water of the above 10 copper-containing enterprises is between 0.0096~0.8 mg/L. (4) Hsinchu Industrial Zone - water quality improvement at key measuring stations has been inspected twice: including the Hsinchu Industrial Zone Service Center and the Zhujiu Self-run Rural Community Land Rezoning Area Community Management Committee; Zhujiu Self-run Rural Community Land Rezoning In the district community, the test results of COD and SS did not meet the standards for discharged water. 2. The water quality monitoring and testing results of the Qielong River Basin Audit Project have been carried out 6 times: the discharged water from the 6 designated survey targets is all within the standard value of 6~9; the heavy metal copper ion monitoring results are all far lower than the current strict copper standards in Qielong River (less than 1.5mg/L). 3. Touqian River Basin Audit Project (1) Once a quarter (implemented for 4 seasons): Taixing Technology Co., Ltd., all previous monitoring results are in compliance with the discharge water quality standards, and the monitoring values of heavy metals (nickel) that the public is concerned about Between 0.1~0.3 mg/L, there is no significant abnormality. (2) Once a year (implemented and completed): Xulei Technology Co., Ltd. Industrial No. 2 Factory, SiGe Co., Ltd., Xinxing Electronics Co., Ltd. Zhongxing Factory and Industrial Technology Research Institute, previous monitoring results, The pH value is mostly between 6.60~7.33, the conductivity value is mostly between 607~1,499μs/cm, COD is between 6~12mg/L, and SS is between
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