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Changes in soil of pH and EC Chonbuk national university

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Presentation on theme: "Changes in soil of pH and EC Chonbuk national university"— Presentation transcript:

1 Changes in soil of pH and EC Chonbuk national university
Department of Mineral Resource and Energy Engineering : Oh min seok Department of Environmental Engineering : Jin chang il

2 2. The principle of experiment
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 1. Self introduction 2. The principle of experiment 3. The method of experiment 4. The result of experiment 5. Conclusion and review

3 1. Self introduction Energy Engineering
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 1. Self introduction University : Chon-buk National University Major : Department of Mineral Resource and Energy Engineering Grade : Fourth grade Name : Oh Min-seok University : Chon-buk National University Major : Department of Environmental Engineering Grade : Third grade Name : Jin Chang-il

4 1. Self introduction Major : Civil and Environmental
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 1. Self introduction Major : Civil and Environmental Engineering Course Lab : Rock Mechanics Professor : Omine Tuter : Ms.Kaku

5 2. The principle of expriment
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 2. The principle of expriment

6 3. The method of expriment
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 3. The method of expriment Soil 20g + water 50g = sample 1,2 Cement 20g + water 50g = alkalinity water Acid solution 10g + water 50g = acid water

7 3. The method of expriment
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 3. The method of expriment Injection Measure button power button Calibration button

8 ① ③ ⑤ ② ④ ⑥ 3. The method of expriment ①,② : pure water
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 3. The method of expriment ①,② : pure water ③,④ : clean sand ⑤,⑥ : soil from garden ① ② ③ ④ ⑤ ⑥ Mixing alkalinity water Mixing acid solution

9 4. The result of expriment
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 4. The result of expriment Standard Liquid + Acid (10g) + Alkalinity (10g) pH E.C (mS/cm) Water (50g) 7.1 0.014 4.3 (-2.8) 0.29 (+0.176) 11.6 (+4.5) 1.27 (+1.213) Clean Sand (10g) +water(50g) 7.2 0.03 4.8 (-2.4) 0.33 (+0.3) (+4.4) 1.05 (+1.02) Soil from garden(10g) 6.8 0.003 5.5 (-1.3) 0.39 (+0.387) 9.5 (+2.7) 0.21 (+0.207)

10 Add alkalinity solution pH
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 5. Conclusion and review ① ② Add aicd solution pH Add alkalinity solution pH 4.875 7.179 4.876 7.279 4.873 6.879

11 5. Conclusion and review clay Soil surface Soil solution
Nagasaki University Lecture on Specific Research in the Civil and Environmental Course 5. Conclusion and review clay Soil surface Soil solution This phenomenon is buffer capacity. The clay’s surface absorbs the positive(+) ion. So, pH is lower change than predicted pH.

12 Q & A Nagasaki University
Lecture on Specific Research in the Civil and Environmental Course Q & A

13 Nagasaki University Lecture on Specific Research in the Civil and Environmental Course

14 Nagasaki University Lecture on Specific Research in the Civil and Environmental Course

15 Nagasaki University Lecture on Specific Research in the Civil and Environmental Course

16 Thank you Nagasaki University
Lecture on Specific Research in the Civil and Environmental Course Thank you

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