2001-01-012024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/660151摘要：針對經過兼曝氣處理後之豬糞尿二級處理排放水灌溉至農田後,對於土壤、表面水、地下水以及附近河川中氮、磷與鹽度的影響加以監測與評估，以作為修正行政院環保署於1999年9月公告之畜牧廢水以「土壤處理」之修正依據。試驗區為台糖公司南靖糖廠之鹿草農場18區農地以及農委會畜產試驗所牧草地與試驗田，分別栽種秋植甘蔗與多年生盤固草。施灌廢水量以每年每公頃400公斤氮為原則。 自民國90年3月份起採集試驗區處理前及處理後之土壤、植物體之樣品，並按月定期採集地下水，附近河川或排水道，水塘及地表水，分析其pH、EC、NO3-N、NH3-N、Total-N、Inorg-P，Total-P及各種重金屬之含量及變化，其第一年初步結果如下：兩試區各水體之pH值在6.5~8.0間變化，個別水體在採樣期間pH值的變異則約在0.5個單位以內，排放水經土壤處理後其在採樣期間pH值的變化亦在0.5個單位左右。電導度有較大的變異範圍，約在0.09~1.63 dS/m 間，以鹿草農場試區監測井2最高，惟個別水體在採樣期間電導度之變異則甚小，約在0.1 dS/m以內。兩試區地下水及畜試所試區地面水中之氨氮，無機磷與鉀均低，依序分<br> Abstract: The objectives of this project are to investigate the effects of application of the secondary treatment water of swine wastewater discharged into soils on the nitrogen, phosphorus, and salinity in the ground water and surface water on two experimental farms, i.e., Lutsao farm (LTF/TSC) of Taiwan Sugar Company and the Hsinhua farm in Taiwan Livestock Research Institute (HHF/TLRI), and to revise the regulation of discharged water treated on the soils, which was announced by the EPA/ROC in 1999. Soil and crop samples, groundwater in monitoring wells, and upstream and downstream of surface water, before and after treating with secondary treatment discharged water to provide 400 kg N/ha/yr into the soils, were sampled from March to November in 2001. The range of pH of all water samples was from 6.5 to 8.0 during the investigating period with the variation less than 0.5 pH unit for each sample. The changes of pH of soil sample after treating with discharged water was less than 0.5 pH unit for each sample. The range of electrical conductivity of all water samples was from 0.09 dS/m to 1.62 dS/m during the investigating period with the variation less than 0.1 pH unit for each sample. Electrical conductivity of groundwater in Monitoring well #2 on LF was among the highest. The concentrations of ammonium nitrogen, inorganic phosphorus, and potassium in all groundwater samples and in surface water samples at HHF/TLRI are relatively low and are below 0.7 mg N/L, 0.25 mg PO4/L, and 3.0 mg K/L respectively. However, those in surface water samples on LTF/TSC, especially in the midstream and downstream, are rather high and are higher than 9.0 mg N/L, 5.0 mg PO4/L, and 14.0 mg K/L for ammonium nitrogen, inorganic phosphorus, and potassium respectively. The trend of the concentration of nitrate nitrogen in water samples was similar to that of ammonium nitrogen but was lower than 2.0 mg N/L. The level of electrical conductivity in water samples was controlled by the concentration of sulfates and chloride ions. The heavy metals in the surface and ground water of samples in 2001 are trace or under detectable. From the results of first year monitoring, there seemed to be no significant differences on pH, electrical conductivity, concentrations of all kind of nitrogen and phosphorus, and soluble salt, and heavy metals of soils, crops, surface water, and ground water samples before and after the application rate of 100 mm depth of the secondary treatment discharged water of swine lagoon waster water on the two experimental farms. The experiments sites should have the capacity to be treated a more quantity of discharged water to provide more N and P of leaves of sugar cane.豬糞尿二級處理排放水土壤處理標準地下水地面水氮磷重金屬污染secondary treatment discharged waterswine waster waterthe regulation of discharged water treated on the soilsground watersurface waternitrogenphosphorusheavy metalspollution