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篇名 牛糞尿厭氣水灑灌盤固草區之影響
卷期 46增刊
並列篇名 Effect of irrigation of dairy anaerobic wastewater at pangolagrass pasture
作者 劉主欣盧啟信張世融蕭宗法程梅萍
頁次 140-140
關鍵字 牛糞尿厭氣水地下水土壤Dairy anaerobic wastewaterGroundwater
出刊日期 201712

中文摘要

牛糞尿厭氣水為經廢水處理厭氣發酵後,富含氮磷鉀等成分,牧草可再利用的資源;直接灑灌於牧 草區其養分可被牧草吸收,但需監測對土壤及地下水質之影響。本研究旨在探討利用牛糞尿厭氣水 灑灌於 A254 盤固草區對土壤品質及地下水質之影響。盤固草區分為灑灌廢水組(A10、A13 及 A14)三區及未灑灌廢水組(對照組),灑灌廢水組每區面積約 12 公頃,每個月灑灌一區,灑灌 量約為每公頃 100 公噸之牛糞尿厭氣水,每個月採集灑灌廢水組三區之土壤並分析其成分。盤固 草區依地形水文分別設置上游一口、下游二口地下水井,每個月採集地下水 1 次分析地下水質。 試驗結果顯示,自 105 年至 106 年上半年 A10、A13、A14 及對照組土壤平均 pH 分別為 5.14、 4.98、6.39 及 6.39;平均 EC 分別為 111、99.1、211 及 190 μs/cm;平均總氮含量分別為 0.14、 0.16、0.15 及 0.13%;平均有效磷含量分別為 1.85、2.48、2.39 及 2.29 mg/kg;平均總銅含量分 別為 7.14、6.53、10.1 及 11.1 mg/kg;平均總鋅含量分別為 46.6、32.5、50.4 及 58.5 mg/kg。地 下水上游一口及下游二口地下水平均 pH 分別為 7.44、7.02 及 7.84;平均 EC 分別為 627、535 及 569 μs/cm;平均總氮含量分別為 0.49、0.56 及 0.95 mg/L;平均總磷含量分別為 0.16、0.17 及 0.18 mg/L;平均 Cu 含量分別為 0.01、0.01 及 0.02 mg/L;平均 Zn 含量皆為 0.02 mg/L。綜上 所述,利用牛糞尿厭氣水灑灌於 A254 盤固草區會降低土壤 EC、增加總氮及有機質含量,未造成 總銅及總鋅含量之累積;對地下水質無顯著影響。

英文摘要

Dairy anaerobic wastewater is treated by anaerobic fermentation process in water treatment facility. It is full of content of nitrogen, phosphorus and potassium, the resource which the pasture can reuse. Dairy anaerobic wastewater is directly irrigated on pasture and the nutrient is absorbed by pasture. The objectives of this study were to evaluate the effect of irrigation of dairy wastewater on the qualities of soil and groundwater. Pangolagrass pasture are allotted into 3 areas with wastewater irrigated groups (A10、 A13 and A14) and control group without irrigation of wastewater (C). Each treatment area was 12 ha. The irrigation groups was irrigated with 100 tons anaerobic treated of dairy wastewater per ha monthly. The soil samples were collected in every area monthly to analyse component. According to hydrographic features, one well at upstream and two wells at downstream of the Pangolagrass pasture were built. The groundwater samples from the well were taken monthly. The results showed that the soil pH were 5.14, 4.98, 6.39 and 6.39 for A10, A13, A14 and C, respectively;111, 99.1, 211 and 190 μs/cm on EC;0.14, 0.16, 0.15 and 0.13% on total nitrogen;1.85, 2.48, 2.39 and 2.29 mg/kg on available phosphorus;7.14, 6.53, 10.1 and 11.1 mg/kg on total copper and 46.6, 32.5, 50.4 and 58.5 mg/kg on total zinc. The pH of groundwater from the upstream well and two downstream wells were 7.44, 7.02 and 7.84, respectively during one year. And the EC were 627, 535 and 569 μs/cm, respectively; the total nitrogen were 0.49, 0.56 and 0.95 ppm, respectively; the total phosphorus were 0.16, 0.17 and 0.18 ppm, respectively; the copper was 0.01, 0.01 and 0.02 ppm, respectively; the zinc was 0.02, 0.02 and 0.02 ppm, respectively; Based on the results above, it concluded that irrigation of dairy wastewater on A254 pangolagrass pasture decreased the EC of soil, increased total nitrogen and organic matter of soil but didn’t cause the accumulation of copper and zinc in soil. Irrigation of dairy wastewater didn’t have significant effect on groundwater quality.

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