109

4,760 千元

2020/02/26

2021/11/30

陳勝恭

雲林縣環境保護局

楊佳霖

能碩工程顧問股份有限公司

水質保護

污染源排放量資料庫、河川涵容能力、河川污染整治考核

Pollution sources emission database, River assimilate capacity, River pollution restoration assessment plan

能碩工程顧問股份有限公司

04-23127535#

miei0323@gmail.com

本計畫執行的主要目地係針對雲林縣北港溪流域及新虎尾溪流域的環境背景資料進行彙整分析，瞭解河川污染源分布及變化趨勢，並評估流域污染負荷，包含點源污染、非點源污染的貢獻量。透過河川水質模式建立及水質採樣檢測成果，辦理水質模式校驗及驗證工作。另外評估河川各污染物超限排放情形，並規劃及研擬關鍵水質測站河段的管制策略及指標污染物的訂定，同時進一步協助追蹤管考各項「河川污染整治考核計畫」，以增進考核成績並強化其執行成效。 計畫執行期間已完成蒐集分析北港溪流域及新虎尾溪流域之環境背景資料，並針對水污染源排放特性及排放資料變化進行趨勢分析。針對北港溪、新虎尾溪支流排水及其他大排流域，已辦理河川水質採樣103點次，並進行河川水質模式校驗證及相關分析,，率定及驗證結果均屬優良與合理的預測。根據歷年相關計畫及本計畫水質檢測成果，分析北港溪及新虎尾溪水質變化情形，並已提出優先進行管制的指標污染物建議為BOD及氨氮。在北港溪流域，BOD整體而言受生活污水影響為主，畜牧廢水次之，分別占50.1%及37.7%，非點源污染為9.8%；氨氮污染物部分，整體而言以生活污水及畜牧廢水污染為主，分別各占44.1%及39.4%，而非點源為16.5%；SS主要來自非點源污染為主，占污染總量之57.5%，其次是生活污水22.7%、畜牧廢水17.6%。新虎尾溪流域主要受到畜牧廢水污染，在該集水區中BOD、氨氮及SS，畜牧廢水分別約占總量之66.1%、66.1%及42.6%。建議北港溪流域優先進行管制的指標污染物主要可從嚴重污染的土庫大橋、觀光大橋的水質測站BOD、氨氮改善為主，新虎尾溪流域優先進行管制的指標污染物建議從污染日益嚴重的豐橋、海豐橋水質測站BOD、氨氮改善為主。建議後續擬定各項污染整治策略及方向應針對指標污染物全力強化污染減量工作，包含下水道建設、現地水質淨化工程、沼渣沼液資源回收及強化稽查管制作為…等相關強化措施及策略。 針對雲林縣河川污染整治考核部分，已計算並提送3季關鍵測站水質改善作為，並預估累計削減量。辦理工作檢討會議4場次，會議過程並邀集相關人員及考核單位參與。計畫工作項目已達100％，符合契約相關規定要求。

污染源排放量資料庫、河川涵容能力、河川污染整治考核

1期末報告(全文).pdf

25MB

2021/3/1 上午 12:00:00

The main objectives of this project are to analyze water quality status of the Beigang river basin and the Xinhuwei river basin in Yunlin County in order to detect the distribution and fluctuation of river pollution sources. The goal is also intend to assess the pollution loading of the river basin, including point source and non-point source pollutions. Employing both the existing water quality models and the results of water quality samplings, the calibration and verification of water quality model have been conducted. In addition, it evaluates the excessive discharge of various pollutants in the river. The purpose is to develop the prevention control strategy of the major water quality monitoring stations and the elicited of the indicator pollutants. Meanwhile, it further assists to carry out the "River Pollution Restoration Assessment Plan". For Beigang river, Xinhuwei river tributary drainage and other large drainage basins, 52 river water quality sampling stations have been analyzed, and river water quality model calibration, verification and related approaches have been conducted. The calibration and verification results show that they are both excellent and reasonable predictions. Based on the past relevant plans and the results of the water quality sampling of this project, the water quality changes of Beigang river and Xinhuwei river have been illumined. The primary indicator pollutants are biochemical oxygen demand and ammonia nitrogen. In the Beigang River Basin, the main source of BOD is domestic sewage, followed by livestock wastewater, accounting for 50.1% and 37.7% respectively, and non-point source pollution at 9.8%. Ammonia nitrogen pollutants mainly come from domestic sewage and livestock sewage pollution, accounting for 44.1% and 39.4% respectively, while non-point sources are 16.5%. Suspended solid mainly comes from non-point source pollution, accounting for 57.5%, followed by domestic sewage 22.7% and livestock wastewater 17.6%. The Xinhuwei River Basin is mainly polluted by livestock wastewater. In the catchment area, BOD, ammonia nitrogen and SS, livestock wastewater account for approximately 66.1%, 66.1% and 42.6% of the total respectively. It is recommended that the indicator pollutants that are prioritized for control in the Beigang River Basin can be mainly from heavily polluted water quality monitoring stations, such as the Tuku Bridge and the Guanguang Bridge, to improve BOD and ammonia nitrogen. The target pollutants BOD and ammonia nitrogen that are prioritized for control in the Xinhuwei River Basin are recommended to be improved mainly from the increasingly polluted Feng Bridge and Haifeng Bridge water quality monitoring stations. Subsequent development of various water pollution restoration strategies and directions should fully strengthen pollution reduction work for indicator pollutants, including sewer construction, on-site water purification projects, animal husbandry fermented liquid and residue resource recovery, and strengthened audit control measures and other related strengthening measures and strategies. The past collection and consolidation of river pollution restoration plans and related work implementation results have been accomplished. Furthermore, the relevant enforcement measures and strategies have been proposed. Four administrative meetings have been completed. The responsible parties and experts have been invited to participate the aforementioned meetings. It meets the Public Private Participation of US EPA requirements. Currently, 100% check points of this project have been completed. Overall speaking, the requirements of this project have been successfully accomplished.

Pollution sources emission database, River assimilate capacity, River pollution restoration assessment plan