57 BAB V KESIMPULAN
Berdasarkan hasil penelitian, dapat diambil kesimpulan sebagai berikut. Perlakuan leaching dengan rasio 45 dapat menaikkan kadar SiO2 serta menurunkan kadar Fe2O3 secara signifikan yang besarnya berturut–urut 51,3% dan 23,99%. Penurunan CaO pada rasio 15, 45, 25 dan 55 secara berurutan sebesar 1,195; 1,69; 1,78 dan 1,84 %. Difraktogram XRD dari zeolit A hasil sintetik menggunakan abu layang dengan rasio 15, 25, 45 dan 55 menunjukkan puncak karakteristik dengan intensitas masing–masing 1723,22; 2252,36; 2571,67 dan 2649,31 serta kristalinitas masing–masing 65.04 %, 85.01 %, 97.06 % dan 100 % sehingga dapat dikatakan bahwa semakin meningkat rasio semakin meningkat kristalinitas zeolit A yang diperoleh.
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59 Daftar Pustaka
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76 RIWAYAT PENULIS
Penulis bernama lengkap Muhammad Heru Baskoro, lahir di Probolinggo tanggal 22 Agustus 1985. Putra ke empat dari empat bersaudara. Putra dari pasangan dari Soemiran dan Sri Kinasih. Penulis telah menempuh pendidikan formal di SDN 1 Banyuanyar Kidul (1991-1997), SLTP 2 Tegal Siwalan (1997-2000) dan SMAN 1 Gending (20002003). Penulis selanjutnya melanjutkan jenjang pendidikan S1 dan diterima di Jurusan Kimia FMIPAITS melalui SPMB pada tahun 2003 dengan NRP. 1403100060.
