Image of Kajian Proses Pemutihan Acacia Kraft Pulpdengan Menggunakan Teknologi Enzim Untuk Mengurangipemakaian Bahan Kimia Pemutih
Penanda Bagikan

CD Tesis

Kajian Proses Pemutihan Acacia Kraft Pulpdengan Menggunakan Teknologi Enzim Untuk Mengurangipemakaian Bahan Kimia Pemutih

Implementing the Enzyme Pretreatment before the Chemical Bleaching process is an alternative way to reduce the ClO2 chemical consumption. This study was conducted in order to determine the optimum process conditions to increase the pulp brightness. After the Biobleaching treatment, it was observed that the ClO2 chemical consumption decreases for the subsequent Chemical Bleaching. In addition, both the pulp quality and environment parameters (e.g. AOX) were also improved. Biobleaching reaction kinetics also include in this study. The pulp sample used for this research was obtained from the Kraft Cooking Process. The pulp sample is a mixture of the acacia mangium, acacia crassicarpa and eucalyptus wood species. The biobleaching parameters consist of time (X1), temperature (X2), pH (X3) and enzyme dosage (X4). The optimization was performed at various pH (4, 6, 7, 8), reaction time (30, 60, 120, 180 minutes), temperature (60, 70 oC) and enzyme dosage (0.2, 0.5 and 1.0 kg / ton pulp) whose enzyme activity is 5000 IU / mL. According to the performed data analysis, pH and enzyme dosage were shown to be the significant factors to raise the pulp brightness. The correlation between the brightness increment (Y), pH and enzyme dosage is described as Y = 0.792 + 0.576 X3 + 0.688 X4. The optimum condition was found to be at pH 8 and enzyme dosage of 0.142 kg / ton pulp which gave the brightness increment of 5.5%. As a result, ClO2 consumption was decreased by 15.2% and the AOX was reduced up to 30%. Furthermore, the pulp’s tensile strength increased from 64.2 to 65.2. In kinetics testing obtained of the reaction constant is 0.0035 l/(g-min) and reaction order is 1.11.

Keywords : AOX, biobleaching, brightness, enzyme xylanase, pulp

Ketersediaan
#
Perpustakaan Universitas Riau 10 13. 217 (0003)
10 13. 217 (0003)
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
10 13. 217 (0003)
Penerbit
Pekanbaru : Universitas Riau – PASCA SARJANA – TEKNIK KIMIA.,
Deskripsi Fisik
xi, 71 hlm.;ill.; 29 cm
Bahasa
Indonesia
ISBN/ISSN
-
Klasifikasi
10 13. 217 (0003)
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
PASCASARJANA (MAGISTER) TEKNIK KIMIA
Info Detail Spesifik
-
Pernyataan Tanggungjawab
Versi lain/terkait

Tidak tersedia versi lain

Lampiran Berkas
Komentar
Anda harus masuk sebelum memberikan komentar