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All Journal Eksergi: Chemical Engineering Journal Majalah Ilmiah MOMENTUM
Adrian Nur
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Education Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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PRODUKSI DAN APLIKASI ZAT WARNA ALAMI DARI KULIT KAYU MAHONI DAN KULIT KAYU TINGI UNTUK BATIK DI DESA KUWIRAN, KECAMATAN BANYUDONO, KABUPATEN BOYOLALI Paryanto Paryanto; Adrian Nur; Desy Nurcahyanti
JURNAL ILMIAH MOMENTUM Vol 14, No 2 (2018)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v14i2.2505

Abstract

Pengembangan penggunaan pewarna alami sebagai pewarna tekstil baru-baru ini meningkat. Ini karena pewarna alami ramah lingkungan dan mudah diperoleh. Ada sekitar 150 spesies tanaman yang secara intensif menghasilkan pewarna alami. Dari total spesies tanaman yang digunakan sebagai produsen pewarna alam termasuk kayu mahoni dan tingi. Pewarna alami kayu mahoni dan kayu tingi diaplikasikan pada kain 5 kali dan 10 kali pencelupan. Setelah itu penguncian warna pada kain dengan beberapa fixator. Fixator adalah tawas, ferro sulfat, dan kapur. Kemudian kain tetap diuji untuk tahan luntur warna mereka terhadap cucian, pewarnaan, gosok, uji penuaan warna kain, dan uji keringat asam. Hasil eksperimen dengan pencelupan 5 kali menghasilkan warna yang kurang tajam, sedangkan dalam mewarnai 10 kali menghasilkan warna yang lebih tajam dibandingkan untuk warna kain pada pencelupan 5 kali. Hasil analisis percobaan telah menunjukkan bahwa pewarna Mahoni dan Tingi diaplikasikan pada kain batik dan difiksasi menggunakan tawas fixator memiliki nilai evaluasi luntur warna yang optimal. Mengenali warna kain uji penuaan yang memiliki nilai R% terkecil yaitu kain dicelup dengan pewarna mahoni pada pencelupan 10 kali dan difiksasi menggunakan fero sulfat dengan nilai R 6,05. Sedangkan kain yang memiliki nilai R% tertinggi dari kain dicelup dengan pewarna mahoni pada pewarna ke-5 dan difiksasi menggunakan alum fiksator dengan nilai R% sebesar 57,97. Analisis uji ketahanan warna terhadap keringat asam pada kain pewarna Tingi dengan pencelupan 5 kali, nilai perubahan warna kain memiliki skor Gray Scale (GS) 4-5 dengan evaluasi nilai BAIK. Nilai pewarnaan warna dari asetat, kapas, poliamida, poliester, akrilat, dan wol memiliki skor Gray Scale (GS) rata-rata 4 dengan evaluasi nilai BAIK.Kata kunci: mahoni, ramah lingkungan, tingi
PENGARUH KONSENTRASI ABSORBEN (Fe-EDTA) TERHADAP PENURUNAN KANDUNGAN H2S DALAM BIOGAS PADA LAJU ALIR UDARA REGENERASI YANG BERBEDA Endang Kwartiningsih; Arif Jumari; Adrian Nur; Danu Nugroho; Umi Sarwanti; Slamet Sapto; Endah Ari
Eksergi Vol 9, No 1 (2008): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v9i1.7553

Abstract

Bíogas is very potential to be used as fuel because of its high content of methane. Biogas had also been developed and used by several industries as alternative fuels to substitute mineral oil, The disadvantage of biogas as fuel was its high content of hydrogen sulfide which is potentíal to pollute the ervironment. Because of this, biogas should be purified first before being used as fuel. Generally, the content of H2S can bereduced physically, chemically or biologically methods, but these methods have many disadvantages. Biogas purílìcation(also other gases) from the content of H2S using Fe-EDTA(Iron Chelated Solution) gave several advantages. The advantages were the absorbent solution can be regenerated that means a cheap operation cost, the separated sulfur was asolid (that is an economic commodity) or resídue that is easy to handle and is save to be disposal to environment. Iron Chelated Solutionwas made by solving the substance of salted iron to EDTA solution. The salt of FeCl2, was made by solving iron waste obtained from lathe machine to hydrochloric acid solution. The research of reduction of the content of H2S in biogas was conducted by contacting Fe-EDTA solution with biogas in an absorber column of 1 m height and 0. I m diameter The rich H2S solution from absorber was then flowed to the separator column to separate the solid of sulfur and its solution. The solution from separator column was then regenerated by oxidation in regenerator column. In regenerator column solution which is rich of iron reacted with oxygen from air to be Fe3. . The solution which is rich of Fe was then used again to absorb H2S in biogas. Biogas used during experiment was obtained from PT Indo Acidatama Tbk. The content of H2S in raw biogas was 2.8235 %. The result of the research showed that the concentration of absorbent influenced the reduction of the content of H2S. Absorbent solution with concentration of 0.2 M of Fe-EDTA was able to absorb 99 % of all H2S from 2.8235 % to 0.02 % in a column of I m height and 0.1 m diameter Absorbent solution with concentratíon of 0.1 M of Fe-EDTA was only able to absorb 59% of all H2S from 2.8235% to 1.2 %. The regeneration air flow rate also influence the reduction of the content of H2S in biogas. The higher the regeneration airflow rate the higher the reduction of the content of H2S.
Co-Authors Arif Jumari Danu Nugroho Endah Ari Endang Kwartiningsih Fauziatul Fajaroh Jundi Rofi’uddien Muhammad Abdul Basir Nazriati Nazriati dkk. Nurcahyanti, Desy Paryanto Slamet Sapto Umi Sarwanti