建議

從現場水樣的監測結果可知，高量的氯鹽及重金屬可能影響再生環境及附近水體，儘管在 鋪設三年後溶出量已大幅降低，且在TCLP 試驗溶出的重金屬比例在總重金屬中頗低，但 受到水體pH 值下降的影響，可能造成重金屬及氯鹽的溶出情形不穩定。此外，在水洗試 驗中發現的triphenylphosphine oxide 實際的生成原因尚不明確，但該化合物的存在可能隨 再生使用而進入環境，須追蹤觀察。

DOC 的成分中，非揮發性有機物應佔大多數，其中是否帶有具危害性的物質尚待檢測。在 往後的再生使用上需追蹤尚未被納入法定規範的有機成分檢測及初期氯鹽溶出問題。

因此建議在再生程序中加入水洗流程，以降低氯鹽、重金屬及部分有機物的溶出。溶出條 件則以20℃、液固比 20l/kg 最佳，並配合適當的淨水流程，以將再生使用的不當影響降到 最低。並避免接觸低pH 值的環境，避免底渣穩定化的化學結構被破壞，使重金屬或其他 成分流出或移動性提高。

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附錄

附錄表一 表面逕流水測項資料(吳佩勳 2007; 盧宥宇 June, 2008)

pH 導電度 (μs/cm) 氯鹽量 ( mg/l) DOC ( mg/l) COCs ( mg/l) 2006/10/3 7.97 10 4.5 1.5 - 2006/11/16 7.11 229 - 2.6 -

2006/12/9 7.59 59.7 6.5 2.6 - 2007/1/7 7.63 36.4 5.0 1.1 - 2007/1/19 6.81 55.4 8.7 0.9 - 2007/8/10 - - 19.0 3.1 - 2007/11/29 - - 45.0 2.1 - 2007/12/27 - - 33.0 3.3 - 2008/1/22 - - 27.0 2.4 - 2008/3/17 - - 39.0 1.1 - 2008/5/23 - - 35.0 4.5 - 2008/7/8 - - 3.0 2.8 - 2008/7/31 - - 16.0 4.0 - 2008/8/19 - - - - - 2008/8/25 - - - - - 2008/9/17 7.99 17.6 2.7 1.3 <0.004 2008/9/26 - - - - -

2008/10/7 7.80 11.1 0.0 0.7 0.020 2008/11/4 7.12 ± 0.01 - ± 5.8 ± 0.07 1.1 ± 0.28 0.025

2008/12/11 7.64 ± 0.46 31.75 ± 0.78 4.0 ± 0.42 1.2 ± 0.01 0.060 2009/1/8 6.06 ± 0.20 129.85 ± 91.57 22.0 ± 16.97 1.0 ± 0.14 0.025 2009/2/12 7.48 ± 0.04 621 ± 394.57 7.0 ± 4.24 1.0 ± 0.42 0.050 2009/3/18 6.88 ± 1.61 15.06 ± 1.36 4.7 ± 0.57 2.6 ± 0.85 0.023

2009/4/15 5.88 20.8 10.7 0.6 0.012

附錄表二 滲出水測項資料(吳佩勳 2007; 盧宥宇 June, 2008) pH 導電度 (μs/cm) 氯鹽量

( mg/l) DOC ( mg/l) COCs ( mg/l) 2005/5/5 8.66 - - - - 2006/7/2 8.46 528 1350.0 48.0 - 2006/7/21 7.62 257 550.0 39.0 - 2006/8/25 7.52 732 2199.0 82.0 - 2006/10/3 6.98 108 350.0 16.0 - 2006/11/16 7.64 167.0 450.0 16.0 -

2006/12/9 7.67 150.0 350.0 6.7 - 2007/1/7 7.72 42.0 55.0 3.2 - 2007/1/19 7.25 55.0 92.0 4.3 - 2007/8/10 - - 1225.0 19.0 - 2007/11/29 - - 603.0 15.0 - 2007/12/27 - - 216.0 3.6 - 2008/1/22 - - 41.000 2.2 - 2008/3/17 - - 38.0 1.9 - 2008/5/23 - - 33.0 7.2 - 2008/7/8 - - 46.0 3.2 -

2008/7/31 - - - 6.4 -

2008/8/19 - - - - - 2008/8/25 - - - - - 2008/9/17 7.27 705 34.4 6.8 <0.004 2008/9/26 - - - - -

2008/10/7 6.38 989 36.0 5.1 0.0 2008/11/4 6.73 ± 0.42 - ± 41.5 ± 0.21 3.0 ± 0.07 0.040

2008/12/11 5.98 ± 0.07 677 ± 1.41 124.3 ± 3.82 3.1 ± 0.14 0.038 2009/1/8 6.42 ± 0.00 1033 ± 145.66 220.0 ± 46.67 2.3 ± 0.42 0.050 2009/2/12 7.10 ± 0.28 779 ± 55.15 102.0 ± 2.83 2.3 ± 0.14 0.055 2009/3/18 6.97 ± 0.07 147.55 ± 0.07 64.7 ± 0.57 3.9 ± 0.42 0.023 2009/4/15 6.73 ± 0.08 175.2 ± 0.24 26.5 ± 0.99 4.6 ± 0.28 0.050

附錄表三 地下水測項資料(吳佩勳 2007; 盧宥宇 June, 2008)

pH 導電度 (μs/cm) 氯鹽量 ( mg/l) DOC ( mg/l) COCs ( mg/l) 2006/7/2 8.12 443 27.0 4.0 - 2006/7/21 7.61 307 25.0 4.5 - 2006/8/25 7.14 273 25.0 4.8 - 2006/10/3 6.40 258 30.0 2.4 - 2006/11/16 8.87 261.0 24.0 2.2 - 2006/12/9 8.33 557.0 27.0 1.7 - 2007/1/7 8.40 649.0 29.0 3.0 - 2007/1/19 7.38 765.0 28.0 3.3 - 2007/8/10 - - 19.0 3.1 - 2007/11/29 - - 45.0 2.1 - 2007/12/27 - - 33.0 3.3 - 2008/1/22 - - 27.000 2.4 - 2008/3/17 - - 39.0 1.1 - 2008/5/23 - - 27.0 8.1 - 2008/7/8 - - 23.0 2.4 - 2008/7/31 - - 24.0 7.3 - 2008/8/19 7.06 - 24.0 5.9 - 2008/8/25 6.82 - 22.0 - -

2008/9/17 6.87 1240 21.1 3.6 0.0 2008/9/26 7.38 583 26.5 1.8 0.0 2008/10/7 6.65 697 18.7 1.7 <0.04

2008/11/4 6.53 ± 0.54 721 ± 0.21 22.4 ± 0.14 2.1 ± 0.07 0.065 2008/12/11 6.26 ± 0.30 723 ± 1.27 21.4 ± 1.27 1.6 ± 0.07 0.027

2009/1/8 6.48 ± 0.03 1333 ± 9.90 40.0 ± 1.41 2.2 ± 0.42 0.090 2009/2/12 6.71 ± 0.07 1321 ± 8.49 57.0 ± 1.41 1.8 ± 0.14 0.008 2009/3/18 6.48 ± 0.11 171.85 ± 30.19 10.9 ± 0.14 2.5 ± 0.14 0.031 2009/4/15 6.66 ± 0.27 147.7 ± 1.70 100.5 ± 11.46 2.1 ± 0.14 0.057

附錄表四 表面逕流水重金屬資料(吳佩勳 2007; 盧宥宇 June, 2008)

As Ba Cd Cr Cu Pb Se Zn 2006/10/3 0.011 - N.D. N.D. N.D. N.D. - - 2006/11/16 - - - - - - - - 2006/12/9 0.058 - 0.049 0.082 N.D. 0.036 - - 2007/1/7 0.059 - 0.049 0.080 N.D. 0.036 - - 2007/1/19 0.054 - 0.048 0.058 N.D. 0.010 - - 2007/8/10 N.D. N.D. N.D. N.D. N.D. N.D. N.D. - 2007/11/29 N.D. 0.024 N.D. 0.006 N.D. 0.006 N.D. - 2007/12/27 0.002 0.058 N.D. 0.004 0.005 0.027 N.D. - 2008/1/22 0.002 0.070 N.D. N.D. N.D. N.D. N.D. - 2008/3/17 0.004 0.142 N.D. 0.009 0.033 0.013 N.D. -

2008/5/23 N.D. 0.148 0.008 N.D. N.D. 0.004 0.008 0.029 2008/7/8 N.D. 0.102 0.008 N.D. N.D. 0.004 0.001 N.D.

2008/7/31 N.D. 0.104 0.009 N.D. N.D. 0.016 0.013 0.089 2008/8/19 - - - - - - - - 2008/8/25 - - - - - - - - 2008/9/17 0.007 N.D. N.D. N.D. N.D. N.D. N.D. 0.216 2008/10/7 0.017 N.D. N.D. N.D. N.D. N.D. N.D. 0.150 2008/11/4 0.014 ± 0.001 N.D. ± N.D. N.D. N.D. N.D. N.D. 1.360 ± 1.243 2008/12/11 N.D. 0.061 ± 0.007 N.D. N.D. 0.002 ± 0.003 0.038 ± 0.027 N.D. 1.017 ± 0.304 2009/1/8 N.D. 0.056 ± 0.003 0.013 ± 0.000 0.043 ± 0.000 N.D. 0.115 ± 0.075 N.D. 1.245 ± 0.885 2009/2/12 N.D. 0.076 ± 0.013 N.D. N.D. N.D. N.D. N.D. 0.093 ± 0.037 2009/3/18 N.D. 0.064 ± 0.031 N.D. N.D. N.D. N.D. N.D. 1.917 ± 2.584 2009/4/15 N.D. 0.066 N.D. N.D. N.D. N.D. N.D. 2.219

附錄表五 滲出水重金屬資料(吳佩勳 2007; 盧宥宇 June, 2008)

1 1 7 2 3 8 7 7 4 2009/1/8 N.D. 0.08

6 ± 0.02

3 N.D. N.D. N.D. N.D. N.D. 0.34

7 ± 0.20 2 2009/2/12 N.D. 0.08

1 ± 0.02

5 N.D. N.D. N.D. N.D. N.D. 0.32

4 ± 0.07 2 2009/3/18 N.D. 0.06

0 ± 0.00

7 N.D. N.D. N.D. N.D. N.D. 1.52

5 ± 0.00 0 2009/4/15 N.D. 0.08

8 ± 0.00

1 N.D. N.D. N.D. N.D. N.D. 1.14

6 ± 0.12 2

附錄表六 地下水重金屬資料(吳佩勳 2007; 盧宥宇 June, 2008)

附錄表七水洗樹林底渣骨材之DOC 及氯鹽資料

附錄表八 水洗新店底渣骨材之 DOC 及氯鹽資料

45 度

70 度

附錄表九 水洗八里底渣骨材之 DOC 及氯鹽資料

附錄表十 樹林廠底渣骨材水洗的重金屬資料

附錄表十一 樹林廠單位底渣骨材洗出的重金屬 (測項資料請參照附錄表十)

附錄表十二 新店廠底渣骨材水洗的重金屬資料

45 度

70 度

附錄表十三 新店廠單位底渣骨材洗出的重金屬 (測項資料請參照附錄表十二)

45 度

70 度

附錄表十四 八里廠底渣骨材水洗的重金屬資料

編號 液固比 底渣骨材

重量 ( g) As ( mg/l) Ba ( mg/l) Cd ( mg/l) Cr ( mg/l) Cu ( mg/l) Pb ( mg/l) Se ( mg/l) Zn ( mg/l) 1 20 10.329 0.026 2.077 0.003 0.013 1.099 1.169 0.028 0.552 2 20 10.289 0.028 2.201 0.009 0.036 1.075 1.289 0.029 0.536 3 20 10.71 0.023 2.227 0.009 0.014 1.097 1.197 0.026 0.641 4 20 10.3 0.02 2.311 0.006 0.001 1.107 1.194 0.33 0.564

附錄表十五 八里廠單位底渣骨材洗出的重金屬 (測項資料請參照附錄表十四)

附錄表十六 台北縣底渣骨材酸洗出的重金屬 (TCLP)

As ( mg/l) Ba ( mg/l) Cd ( mg/l) Cr ( mg/l) Cu ( mg/l) Pb ( mg/l) Se ( mg/l) Zn ( mg/l)

樹林廠底渣骨材

2009/2/5 0.095 ± 0.005 0.694 ± 0.067 0.072 ± 0.001 0.032 ± 0.004 2.614 ± 0.122 0.142 ± 0.008 0.129 ± 0.018 12.025 ± 1.242 2009/3/15 0.004 ± 0.001 0.414 ± 0.053 0.136 ± 0.029 N.D. 2.246 ± 0.034 0.041 ± 0.011 0.049 ± 0.017 49.576 ± 9.840

新店廠底渣骨材

2008/2/23 0.017 ± 0.000 0.789 ± 0.133 0.088 ± 0.000 N.D. 3.982 ± 0.388 1.869 ± 2.307 0.026 ± 0.009 40.936 ± 2.593 2009/3/15 0.015 ± 0.008 0.674 ± 0.004 0.064 ± 0.005 N.D. 5.057 ± 0.530 0.108 ± 0.033 0.023 ± 0.015 34.724 ± 0.732

八里廠底渣骨材

2009/2/5 0.095 ± 0.001 0.572 ± 0.046 0.112 ± 0.011 0.024 ± 0.000 3.002 ± 0.042 0.145 ± 0.006 0.147 ± 0.004 17.908 ± 3.770 2009/3/15 0.005 ± 0.004 0.728 ± 0.045 0.013 ± 0.004 N.D. 3.039 ± 0.325 0.070 ± 0.031 0.019 ± 0.003 26.560 ± 0.909

附錄表十七 台北縣單位底渣骨材溶出的總重金屬

日期 As (mg/kg) Ba (mg/kg) Cd (mg/kg) Cr (mg/kg) Cu (mg/kg) Pb (mg/kg) Se (mg/kg) Zn (mg/kg) 樹林廠 7.208 ± 2.093 122.985 ± 6.352 14.622 ± 3.486 205.781 ± 18.493 25311.208 ± 32022.449 846.672 ± 176.885 39.858 ± 0.856 3503.886 ± 617.990 2009/1/15 6.657 ± 1.683 391.953 ± 1.963 6.567 ± 1.192 110.691 ± 7.820 1797.044 ± 228.629 653.529 ± 343.826 25.793 ± 1.498 1927.262 ± 365.748

2009/2/5 3.656 ± 0.897 167.508 ± 0.372 34.140 ± 38.544 122.822 ± 18.877 7847.911 ± 608.662 534.068 ± 59.421 23.440 ± 0.312 2472.788 ± 60.617

2009/3/15

新店廠 7.258 ± 3.451 358.782 ± 56.578 6.808 ± 0.261 101.714 ± 36.547 3588.303 ± 183.330 437.739 ± 42.894 27.881 ± 2.250 2306.805 ± 38.163 2009/2/5 2.715 ± 0.523 900.080 ± 1032.745 0.176 ± 0.249 116.596 ± 29.270 2230.270 ± 271.607 559.712 ± 177.508 17.006 ± 0.197 1743.452 ± 930.671

2009/3/15

八里廠 4.794 ± 0.345 347.777 ± 8.675 7.560 ± 0.051 106.012 ± 5.497 2140.234 ± 569.182 764.632 ± 358.606 23.684 ± 0.909 2886.987 ± 1074.697 2009/2/5 2.769 ± 0.408 164.731 ± 3.758 1.574 ± 0.240 84.420 ± 8.076 1985.936 ± 332.872 615.546 ± 4.906 19.776 ± 1.152 1898.763 ± 752.679 2009/3/15 7.208 ± 2.093 122.985 ± 6.352 14.622 ± 3.486 205.781 ± 18.493 25311.208 ± 32022.449 846.672 ± 176.885 39.858 ± 0.856 3503.886 ± 617.990