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All Journal Jurnal Riset Industri Hasil Hutan Konversi Jurnal Fisika FLUX Indonesian Journal of Chemistry Justek : Jurnal Sains Dan Teknologi Molekul: Jurnal Ilmiah Kimia JKPK (Jurnal Kimia dan Pendidikan Kimia) Fullerene Journal of Chemistry Indonesian Journal of Chemical Science and Technology Journal of Banua Science Education Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) Jurnal Ilmiah Berkala: Sains dan Terapan Kimia JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT (Journal of Environmental Sustainability Management) NAWASENA: Journal of Community Service

Utami Irawati

Department Of Chemistry, Faculty Of Mathematics And Natural Science, Lambung Mangkurat University Jl. Jend. Ahmad Yani KM 36 Banjarbaru, South Kalimantan 70714

Author-ID : 288192

Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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IMMOBILIZATION OF HUMIC ACID ON CHITOSAN USING PROTECTED CROSS-LINKING REACTION METHOD AND ITS APPLICATION AS SORBENT FOR Pb(II), Cd(II), AND Cr(III) Uripto Trisno Santoso; Dewi Umaningrum; Utami Irawati; Radna Nurmasari
Indonesian Journal of Chemistry Vol 8, No 2 (2008)
Publisher : Universitas Gadjah Mada

Immobilization of humic acid (HA) on chitosan has been done by using a protected cross-linking reaction method and the product was then utilized as sorbent for Pb(II), Cd(II), and Cr(III). HA was cross-linked with chitosan by using glutaraldehyde in order to obtain sorbent insoluble in aqueous acidic and basic solution. Protection of the active sites of HA was carried out by interacting HA with Pb(II) before performing the cross-lingking reaction in order to maintain its adsorption capacity The result showed that the amount of immobilized HA on chitosan was 99.7% by weight. The solubility of the immobilized HA were < 0.5% at pH 6 and < 1.0% at pH 12. The amount of immobilized HA and its solubility indicated that the protection pretreatment did not interfere the cross-linking reaction between HA and chitosan. The adsorption capacity of the sorbent for Pb(II), Cd(II), and Cr(III) were 416.7 mg/g, 332.3 mg/g, dan 714.3 mg/g, respectively.

Slow Sand Filter untuk Pengolahan Air di Desa Pekauman Ulu, Kalimantan Selatan Nafisah Nafisah; Nafia Fitrawati; Risaldi Ridwan; Fathul Jannah; Puspita Jamilah Rahimah; Utami Irawati
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 1, No 2 (2021)
Publisher : Universitas Lambung Mangkurat

Pekauman Ulu Village is one of the villages crossed by the Martapura river, where the water is used by the people of this village for their daily activities. Pekauman Ulu Village is a densely populated area which is flooded every year. The water is very turbid with an unpleasant smell, and consuming this water often makes some people get diarrhea. Thus, a simple technology is needed to treat this river water into clean water. This activity aims to build Slow Sand Filter (SSF) units as a means of providing clean water for people in Pekauman Ulu Village. The activity is conducted in three parts: initial dissemination, training, and evaluation. Based on the survey done to the people joining the training, 95.25% of the people said that they were satisfied with the water being treated by SSF. As for the performance of the SSF itself, turbidity measurement of water samples showed that the turbidity of water filtered by the SSF unit reduced from an average of 41.7 NTU to 2.3 NTU. It can be concluded that this community development program has successfully addressed the need for clean water for people in Pekauman Ulu Village.

PEMANFAATAN KITOSAN DARI CANGKANG KEPITING SEBAGAI MEDIUM FILTER UNTUK FILTRASI Cr(VI) DALAM LARUTAN Utami Irawati; Umi Baroroh Lili Utami
Jurnal Sains dan Terapan Kimia Vol 1, No 2 (2007)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Telah dilakukan isolasi kitosan dari cangkang kepiting melalui proses demineralisasi, deproteinasi, dan deasetilasi. Kitosan yang telah diisolasi digunakan sebagai medium filter dalam suatu unit filtrasi bersama-sama dengan arang aktif dari limbah kayu ulin. Unit filtrasi yang dirakit digunakan untuk mengadsorp Cr(VI) dalam larutan.Hasil penelitian menunjukkan konsentrasi Cr(VI) dalam larutan mengalami penurunan setelah melalui pengolahan dengan unit filtrasi. Adsorpsi Cr(VI) pada proses filtrasi dipengaruhi oleh waktu kontak. Adsorpsi Cr(VI) maksimum terjadi pada menit ke-15 pengamatan, dimana konsentrasi Cr(VI) turun dari 125 ppm menjadi 55,5 ppm.Kata kunci : kitosan, adsorpsi, filtrasi, Cr(VI)

KAJIAN PENGARUH KONSENTRASI NaOH TERHADAP KARAKTER ZEOLIT SINTETIK DARI KAOLIN LOKAL KALIMANTAN SELATAN Tety Wahyuningsih Manurung; Sunardi Sunardi; Utami Irawati
Jurnal Sains dan Terapan Kimia Vol 5, No 1 (2011)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Telah dilakukan penelitian pemanfaatan kaolin Tatakan, Kalimantan Selatan dengan mentransformasi kaolin menjadi zeolit. Zeolit disintesis dari kaolin dengan proses hidrotermal. Sebelum dilakukan sintesis, kaolin terlebih dahulu diubah struktur berlapisnya menjadi amorf dengan proses metakaolinisasi pada temperatur 800 ºC selama 3 jam. Proses hidrotermal menggunakan autoclave dilakukan pada temperatur 100 ºC selama 24 jam dengan variasi konsentrasi NaOH yaitu 3, 5 dan 7M. Hasil analisis XRD, FTIR dan SEM menunjukkan zeolit yang terbentuk adalah zeolit LTA, sodallite dan Na-X. Kata kunci : sintesis, kaolin, zeolit, konsentrasi NaOH

Pengolahan Limbah Cair Sasirangan Menggunakan Filter Arang Aktif Cangkang Kelapa Sawit Berlapiskan Kitosan Setelah Koagulasi dengan FeSO4 Utami Irawati; Umi Baroroh Lili Utami; Hanifa Muslima
Jurnal Sains dan Terapan Kimia Vol 5, No 1 (2011)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Filtration of sasirangan wastewater using oil palm shell active charcoal coated with chitosan after coagulation with FeSO4 had been done. One of the aims of this research is to compare the value of pH, COD, Turbidity, TSS, total chromium and total lead in sasirangan wastewater after the treatment standards for waste quality set by Peraturan Gubernur Kalimantan Selatan Nomor 036 Tahun 2008, and to determine adsorption ability of filter based on the volume of Pb(II) solution being flown to 50 grams of adsorben. The wastewater of sasirangan was processed by using FeSO4 as coagulant under the optimum conditions at pH 8-10 and concentration 750 mg/l followed by filtration. Parameters of effluent being measured were pH, COD, Turbidity, TSS, total chromium and total lead. Determination of adsorption capacity of the filter was done by flowing 35 liters of Pb(II) solution into the filter. The results showed that FeSO4 as coagulant has reduced pH value from 8,73-7,95 while the percentage of decrease for COD, TSS, turbidity and total lead were 93,33%, 56,95%, 65,10% and 10% respectively. After sasirangan wastewater was filtered, TSS, turbidity and total lead decreased as much as 77,25%, 87,63% and 77,78%. As much as 50 grams oil palm shell active charcoal coated with chitosan reach its saturation after being passed by 30 liters of Pb(II) solution. Keywords: Sasirangan wastewater, coagulant FeSO4, active charcoal, chitosan

KANDUNGAN KADMIUM DAN SENG PADA IKAN BAUNG (Hemibagrus nemurus) DI PERAIRAN TRISAKTI BANJARMASIN KALIMANTAN SELATAN Noer Komari; Utami Irawati; Etty Novita
Jurnal Sains dan Terapan Kimia Vol 7, No 1 (2013)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Penelitian ini bertujuan untuk menentukan kandungan kadmium dan seng pada ikan baung (Hemibagrus nemurus) yang hidup di sekitar pelabuhan Trisaksi Banjarmasin Kalimantan Selatan. Sampel diambil dua kali pada bulan April dan Mei 2012 di tiga lokasi, yaitu Trisakti, Basirih dan Banjar Raya dengan tiga kali ulangan. Kadar timbal dan seng pada sampel ditentukan menggunakan spektrofotometer serapan atom. Hasil analisis menunjukkan kadar kadmium dan seng bervariasi di tiap lokasi. Rata- rata kandungan kadmium pada ikan baung di bulan April berkisar 0,091-0,115 ppm dan bulan Mei berkisar 0,133-0,171 ppm. Kandungan kadmium pada ikan baung pada setiap lokasi masih di bawah baku mutu Direktorat Jendral Pengawasan Obat dan Makanan, 1989 sebesar 1,0 ppm. Rata-rata kandungan seng pada ikan baung di bulan April berkisar 0,796-1,371 ppm dan bulan Mei berkisar 0,640-1,428 ppm. Kandungan seng pada ikan baung di setiap lokasi masih di bawah baku mutu Direktorat Jendral Pengawasan Obat dan Makanan, 1989 sebesar 100 ppm. Ikan baung di sungai Barito sekitar pelabuhan Trisakti masih aman untuk di konsumsi. Kata kunci : kadmium, seng, Ikan baung (Hemibagrus nemurus)

A REVIEW ON OPTIONS OF REDUCING GREENHOUSE GASES EMISSION FROM ENERGY SECTOR Utami Irawati
Jurnal Sains dan Terapan Kimia Vol 4, No 1 (2010)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Climate change has influenced many sectors whereas energy sector is a crucial aspect uniquely interrelated with it. Recently, the rising global awareness about climate change and how it can affect the world has influenced the way people use and produce energy. Nevertheless, reducing the use of energy as a practical way of reducing green house gases (GHG) is not as simple as one might expect. Energy might be the main source of GHG emission. But on the other hand, as illustrated by UNEP in Global Outlook Report 2006, energy is also the main fuel of world development. This article aims to review attempts to search best ways of reducing GHG emission to mitigate the effect of climate change from energy sector. Increasing energy efficiency and using technology to provide “clean” energy are two among those attempts. Despite the good intention of those attempts, their applications have not yet showed the expected result of a significant reduction in GHG emission. These efforts are often restrained in their implementation by a number of factors, where economic considerations come as the most dominant factors.A continuous effort of developing technologies that support energy efficiency and clean energy provision is a crucial need. Along with it, there should also be a major reform in changing the way people behave toward energy itself.Keywords: GHG emission, energy efficiency, alternative sources of energy

SINTESIS DAN KARAKTERISASI KOMPOSIT KAOLIN-TiO2 SEBAGAI FOTOKATALIS UNTUK DEGRADASI ZAT WARNA RHODAMINE B Sunardi Sunardi; Utami Irawati; Nora Rotua Sybianti
Jurnal Sains dan Terapan Kimia Vol 6, No 2 (2012)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Telah dilakukan sintesis dan karakterisasi komposit kaolin-TiO2 berbahan baku kaolin alam asal Tatakan, Kalimantan Selatan sebagai fotokatalis untuk degradasi zat warna Rhodamine B. Sampel kaolin dipurifikasi dan dijadikan material pengemban untuk TiO2. Selanjutnya dilakukan kalsinasi pada suhu 700 oC selama 3 jam hingga terbentuk kaolin-TiO2 pada fase anatase. Komposit kaolin-TiO2 dikarakterisasi menggunakan spektroskopi FTIR dan XRD. Komposit diuji kemampuannya untuk mendegradasi Rhodamine B. Degradasi dilakukan dengan menambahkan 50 mg kaolin-TiO2 kedalam 25 mL larutan Rhodamine B, kemudian disinari dengan sinar ultraviolet dengan variasi waktu 10, 20, 30, 40, 50, dan 60 menit. Pengurangan Rhodamine B akibat fotodegradasi dianalisis dengan spektroskopi ultraviolet. Hasil penelitian menunjukkan bahwa komposit kaolin-TiO2 merupakan komposit yang baik untuk mendegradasi zat warna Rhodamine B dan proses fotodegradasi optimum dicapai pada waktu 60 menit dan berat katalis 150 mg. Kata kunci: fotodegradasi, Rhodamine B, kaolin-TiO2

KANDUNGAN KADMIUM (Cd) DAN SENG (Zn) PADA IKAN BAUNG (Hemibagrus nemurus) DI PERAIRAN TRISAKTI BANJARMASIN Etty Novita; Utami Irawati; Noer Komari
Jurnal Sains dan Terapan Kimia Vol 8, No 2 (2014)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Tingginya aktivitas bongkar muat di Sungai Barito sekitar Pelabuhan Trisakti Banjarmasin menyebabkan perairan tercemar. Bahan percemar perairan antara lain adalah logam berat. Penelitian ini bertujuan menentukan kandungan Cd dan Zn pada ikan Baung (Hemibagrus nemurus) di perairan Trisakti Banjarmasin. Penentuan kadar logam berat menggunakan metode Spektrofotometri Serapan Atom (SSA). Sampel diambil di tiga lokasi, yaitu Trisakti, Basirih, dan Banjar Raya. Hasil penelitian menunjukkan bahwa kadar Cd dan Zn bervariasi di tiap lokasi. Kandungan Cd di Trisakti, Basirih dan Banjar Raya berturut-turut adalah 0,104-160 ppm, 0,072–0,184 ppm, dan 0,07–0,144 ppm. Kadar Zn di Trisakti, Basirih, dan Banjar Raya berturut-turut adalah 0,940-1,588 ppm, 0,564-1,432 ppm, dan 0,540- 1,044 ppm. Kadar Cd dan Zn pada ikan Baung masih berkesesuaian dengan baku mutu. Ikan Baung di sungai Barito sekitar perairan Trisakti Banjarmasin masih layak untuk dikonsumsi. Kata kunci : Sungai Barito, Kadmium, Seng, Ikan Baung, Spektrofotometer Serapan Atom

PENENTUAN KANDUNGAN TIMBAL, TEMBAGA DALAM AIR-SEDIMEN PADA SALAH SATU LUBANG TAMBANG INTAN DI KELURAHAN SUNGAI TIUNG KOTA BANJARBARU Dwi Rasy Mujiyanti; Utami Irawati; Radna Nurmasari; Messy Risna
Jurnal Sains dan Terapan Kimia Vol 8, No 2 (2014)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Logam berat merupakan unsur yang seringkali menjadi polutan utama dalam pencemaran air dan dapat membahayakan kehidupan organisme. Penelitian ini bertujuan untuk menentukan besarnya kandungan logam berat Pb dan Cu pada air dan sedimen dan pada lingkungan air asam tambang di Kelurahan sungai Tiung Kota Banjarbaru. Metode yang digunakan adalah Standar Nasional Indonesia (SNI) dengan menggunakan instrumen Spektrofotometer Serapan Atom (SSA). Hasil analisis laboratorium diperoleh rata-rata kandungan Pb dan Cu dalam sampel air masing- masing sebesar 1,113 mg/L dan 0,464 mg/L. Rata-rata kandungan Pb dan Cu pada sedimen adalah masing-masing 231,61 mg/Kg dan 112,186 mg/Kg. Kata kunci: logam berat, Pb, Cu, air, sedimen

Co-Authors Alfanaar, Rokiy Arfan, Aulia Rhamdani Arif Sholahuddin Chatimatun Nisa Dahlena Ariyani Desmalina Safitri Dewi Umaningrum Dewi Umaningrum Dirgahayu, Daniel Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Edi Mikrianto Etty Novita Fathul Jannah Fitriani, Rizky Aulia Gea, Temani Hamidah . Hanifa Muslima Hanna Habibah Hikmah, Nawwal Horale Pasaribu, Marvin Indah, Rahma Iriansyah Iriansyah Iriansyah Iriansyah, Iriansyah Laksono Trisnantoro Lilik Nofianti Manurung, Tety Wahyuningih Messy Risna Mokhamat Ariefin Nafia Fitrawati Nafisah Nafisah Nainggolan, Yuni Natania Gracia, Amanda Ningsih, Rima Oktavia Noer Komari Nor Pana Yupa Nora Rotua Sybianti Nugi Maulana Nugravita, Annisa Nurfadilla Nur Firda Trianda Puspita Jamilah Rahimah Radna Nurmasari Rahmi Wulandari, Oktavia Retno Elya Rohmah Riana Maulana Ricky Kurniawan Rinne Nintasari Risaldi Ridwan Risaldi Ridwan Rizki Fitria Ryu Pratiwi, Djihan Sunardi Sunardi sunardi sunardi Sunardi, Ph.D., Sunardi Suraida Suraida Sutarno Sutarno Tety Wahyuningsih Manurung Totok Wianto Umi Baroroh Lili Utami Uripto T Santoso Uripto T Santoso, Uripto T Uripto Trisno Santoso Wahyuningsih Manurung, Tety Yateman Arryanto

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