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All Journal Prosiding Seminar Nasional MIPA Alchemy Jurnal Penelitian Kimia Jurnal Penelitian Politik Metalurgi
Indriana Kartini
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PEMBUATAN CONCRETE ZEOLIT-LEMPUNG UNTUK PERVAPORASI CAMPURAN ETANOL/AIR TANPA PEMANASAN Wisnu Adhi Putra, I Made; Arryanto, Yateman; Kartini, Indriana
Prosiding Seminar Nasional MIPA 2012: PROSIDING SEMINAR NASIONAL MIPA UNDIKSHA 2012
Publisher : Prosiding Seminar Nasional MIPA

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Abstract

ABSTRACTPreparation of zeolite-clay concrete for new ethanol/water pervaporation without heating has been carried out. Concrete was made by mixing natural zeolite, portland cement, natural clay and distilled water in porcelain disk. The mixture was manually stirred until homogenous suspension obtained. The suspension formed was then placed in the mold and allowed to dry in open air for 48 hours. The mass of natural zeolite was varied from 10, 12.5, 15, 17.5, and 20 g meanwhile the mass of natural clay was varied from 0, 1.25, 2.5, 3.75, and 5 g. The mass of portland cement was fixed in the value of 10 g. The concrete was characterized by infrared spectrophotometer (IR) and X-ray diffraction (XRD). Material testing machine was used to determine the compressive strength of the concrete agreeable with decided ASTM C349-08 standard.Based on preparation of zeolite-clay concrete, it was found that the increase of the natural zeolite mass from 15 to 20 g caused fracture to the concrete, but water adsorption percentage increased from 27.7% to 35.2%. Meanwhile, the higher the mass of natural clay, the greater the compressive strength of concrete from 130.3 MPa to 179.9 MPa and water adsorption percentage from 28.9% to 32.3%. The adsorption-desorption data showed that the water was faster to adsorb into the concrete than ethanol, whereas the desorption rate of concrete with respect to ethanol was greater than that to water. The difference on desorption rate was then used to separate ethanol/water mixture through pervaporation without heating. Pervaporation test using the concretes resulted in the increase of ethanol feed concentration from 60%, 70%, 80%, and 90% to 82.9%, 82.5%, 87.8%, and 93.7% respectively.Keywords: concrete, compressive strength, adsorption-desorption, ethanol/water mixture, pervaporation.
PENGUATAN KONEKTIVITAS LINTAS BATAS DALAM KERJA SAMA EKONOMI SUBREGIONAL Kartini, Indriana; Irewati, Awani; Rahman, Agus R; Pudjiastuti, Tri Nuke; Luhulima, CPF.; Dewi, Rosita; Raharjo, Sandy Nur Ikfal; Nufus, Hayati
Jurnal Penelitian Politik Vol 17, No 1 (2020): Perang dan Damai : Situasi Politik Internasional di Era Ketidakpastian
Publisher : Pusat Penelitian Politik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (950.408 KB) | DOI: 10.14203/jpp.v17i1.859

Abstract

Konektivitas yang dibangun negara, baik dalam lingkup bilateral, regional, maupun global berkelindan satu sama lain. Misalnya, kerja sama subregional berbasis konektivitas lintas batas yang tengah dibangun dalam kerangka IMT-GT, BIMP-EAGA, dan TIA-GT akan mendorong dan menguatkan sebuah kerja sama regional, seperti ASEAN Community, sesuai dengan Master Plan on ASEAN Connectivity. Studi ini difokuskan pada tiga hal, yakni  pertama, capaian dan tantangan pembangunan konektivitas lintas batas (fisik, kelembagaan, dan antarmasyarakat) melalui kerja sama ekonomi subregional; kedua, strategi penguatan konektivitas antarwilayah pertumbuhan subregional untuk mendukung konektivitas ASEAN; ketiga, strategi pemanfaatan konektivitas ASEAN berbasis kerja sama ekonomi subregional bagi Indonesia. Dengan menggunakan metode penelitian kualitiatif yang bersifat eksploratif analitis, studi ini menemukan bahwa keterlibatan Indonesia dalam beberapa kerja sama ekonomi subregional membawa dampak positif bagi Indonesia, baik secara ekonomi, sosial budaya, maupun pertahanan keamanan. Namun, capaian dari beberapa kerja sama subregional ini lebih terlihat di kawasan Indonesia bagian barat dan tengah dibandingkan bagian timur. Tantangan ini yang harus dapat diselesaikan oleh pemerintah Indonesia untuk dapat mengoptimalkan pemanfaatan kerja sama subregional di semua kawasan di Indonesia dengan mendorong peran aktif pemerintah-pemerintah daerah untuk terlibat dalam kerja sama subregional yang melibatkan daerahnya. Kata kunci: konektivitas, lintas batas, subregional, IMT-GT, BIMP-EAGA, TIA-GT
Co-Authors Agus R Rahman, Agus R Ahmad Budi Junaidi Akhmad Herman Yuwono Alfian Ferdiansyah Anak Agung Istri Sri Wiadnyani Awani Irewati, Awani Badrul Munir, Badrul Bambang Rusdiarso Candra Purnawan Eko Sugiharto Hayati Nufus, Hayati I Made Wisnu Adhi Putra Luhulima, CPF. Narsito Narsito Nurul Hidayat Apriliata Pujianto, Togo Hadi Sandy Nur Ikfal Raharjo, Sandy Nur Ikfal Sayekti Wahyuningsih Sofyan, Norifon Tri Nuke Pudjiastuti, Tri Nuke Yateman Arryanto