| 英文摘要 |
The main purpose of this project is to assist the Yunlin Environmental Protection Bureau to use the established water pollution sources control database for statistical analysis of control results for the development of relevant audit control operations and sources of pollution control strategy reference. All tasks in this project have been put into action, and this project has been 100% finished with the contract. During the period of implement, we have renewed the Environmental Enforcement Management System (EEMS) audit data files a total of 6,946 cases ,have audited water pollution control plan or the permit application review 131 operations, provided 5 press releases, analyzed water quality in emergency cases 23 times, and held one technology transfer conference.
The river water quality RPI in Yunlin County, according to the statistical analysis of the results of water quality monitoring data shows that the Jhuoshuei Creek is moderate polluted to the non or slight-polluted, the Sinhuwei Creek is heavy-polluted to moderate polluted, if exclude SS item upstream water quality RPI is lightly polluted to medium polluted and downstream water quality station is moderately polluted. And the Beigang Creek is heavy-polluted to the non or slight-polluted, but the river RPI have the improvement trend. The pollution of the rivers mainly are domestic sewage and animal husbandry wastewater in Yulin County. In the analysis of the sources of pollution of the river, considering treatment of domestic sewage by septic tanks to reduce by 50%, and the reduction of sewage treatment facilities in existing districts and the reduction of existing processing facilities. Another, the animal husbandry wastewater treatment facilities have cut down 95% pollutants. After wastewater treatment, Beigang Creek water pollution load by domestic sewage part 51.30%, Sinhuwei Creek water pollution load by domestic sewage part 47.17% and Jhuoshuei Creek water pollution load by domestic sewage part proportion at 50.31%.In regional large drainages mainly pollution are from animal husbandry wastewater and domestic sewage. The proportion of animal husbandry wastewater in Shicuoliao, Bajiaoting and Youcailiao are still relatively high, with 78.10%, 66.33% and 61.21% respectively.
For the part of the domestic sewage reduction strategy, it is suggested that the Beigang River Basin will promote the construction of a gravel project at Huwei drainage and water purification project at Bizitou drainage in the short term to reduce the amount of domestic sewage pollution in the area, and set up water purification measures at Huilaicuo drainage in the medium term. In the Sinhuwei Creek Basin, water purification projects at such as Wutong Village and Puzi Village, Gangwei Drainage and Shiwei Drainage must be built. The medium-term planning set up the water purification project in the Maoliao and Xinzhuangzi sub-districts. Long-term planning will be the construction of sewage sewers and increase the constructed rate. In animal husbandry wastewater reduction is to accelerate the guidance of livestock farmers to implement circular economy to reduce pollution emissions, such as the application of biogas slurry and biogas fertilizer farm use project. In order to reach the goal of the River Remediation Vision, the DO≧2mg/L pass rate are all 100%, which are severely polluted, and the overall river pollution length continue to decline in the county.
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