“Maaf pak saya blm bisa mengubah dari titik ke koma, tapi saya melampirkan data yg bisa d edit d word”
Effect of optimum contact time GASP on Cr(VI) adsorption
0 0.5 1 1.5 2 2.5 3
0 1 2 3 4 5 6
2.93 3.07
4.44
5.24
4.77
Contact time (hour)
x/m (mg/g)
Figure 2. The relation of adsorption contact time to Cr(VI) ion mass which absorbed per gram of GASP adsorbent (x/m).
Effect of Cr(VI) concentration on adsorption capacity in GASP
0 25 50 75 100 125 150
0.000 1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000
1.70
2.93
4.01
5.24
7.55
Concentration (mg/L)
x/m (mg/g)
Figure 3. The relation of Cr(VI) concentration to Cr(VI) ion mass which absorbed per gram of GASP adsorbent (x/m)
0.00 20.00 40.00 60.00 80.00 100.00 120.00 140.00 0.000
2.000 4.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000
f(x) = 0.02 x + 13.59 R² = 0.94
C (mg/L)
Cm/x (g/L)
Figure 4. Langmuir equations on GASP from Cr(VI) concentration after adsorption process (C) to concentration per Cr(VI) ion mass were absorbed per gram of adsorbent (Cm/x).
10.00020.00030.00040.00050.00060.00070.00080.00090.000 0.000
5.000 10.000 15.000 20.000 25.000
f(x) = 0.06 x + 14.65 R² = 0.94
C (mg/L)
Cm/x (g/L)
Figure 5. Langmuir equations on active zeolite from Cr(VI) concentration after adsorption process (C) to concentration per Cr(VI) ion mass were absorbed per gram of adsorbent (Cm/x).
10.00020.00030.00040.00050.00060.00070.00080.00090.000 0.000
5.000 10.000 15.000 20.000 25.000
f(x) = 0.06 x + 14.54 R² = 0.95
C (mg/L)
Cm/x (g/L)
Figure 6. Langmuir equations on active zeolite granules from Cr(VI) concentration after adsorption process (C) to concentration per Cr(VI) ion mass were absorbed per gram of adsorbent (Cm/x).
10.000 20.000 30.000 40.000 50.000 60.000 70.000 80.000 90.000 0.000
2.000 4.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000
f(x) = 0.03 x + 13.47 R² = 0.97
C (mg/L)
Cm/x (g/L)
Figure 7. Langmuir equations on ASP from Cr(VI) concentration after adsorption process (C) to concentration per Cr(VI) ion mass were absorbed per gram of adsorbent (Cm/x).
Active zeolite Granules active zeolite ASP GASP 0.000
10.000 20.000 30.000 40.000 50.000 60.000
15.601 16.287
35.336
48.077
Type of adsorbent
maximum adsorption capacity (mg/g)
Figure 8. Maximum adsorption capacity on different adsorbents
Zeolit alam dari Kota Blitar dengan warna lebih coklat kekuningan dibanding zeolit alam lain karena kadar besi yang tinggi ( berdasarkan data XRF)
Zeolit yang telah diaktivasi dengan menggunakan HCL dan pemanasan 105ᴼC
Penggunaan syringe pump dalam pembuatan granul
Uji kualitatif bebas ion fosfat dengan Mg(NO3)2 terbentuk endapan putih Mg3(PO4)2, filtrat yang masih ada ion fosfat (kiri) dan bebas ion fosfat (kanan)
Kiri GASF dan kanan granul zeolit aktif sebelum dikeringkan
Kiri GASF dan kanan granul zeolit aktif setelah dikeringkan
