https://analit.fmipa.unila.ac.id/index.php/analit <pre id="tw-target-text" class="tw-data-text tw-text-large tw-ta" dir="ltr" data-placeholder="Translation"><span class="Y2IQFc" lang="en"><strong><em>Analit: </em></strong><strong><em>Analytical And Environmental Chemistry <br /></em></strong>First published in October 2016. </span></pre> <p><strong>Analit</strong> is a scientific journal that contains research results and reviews in the field of analytics and the environment. <strong>Fields of research studies or review articles that can be published in this journal include analytical chemistry, biosensor, chemical sensor, synthesis and characterization of materials, renewable-energy-related functional materials, environmental chemistry, remediation and waste treatment technologies, green chemistry and sustainability, as well as applied chemistry for environmental health and industrial processes.</strong></p> <p><span class="Y2IQFc" lang="en"><strong>Analit</strong> is a scientific journal that is published twice a year. </span>The journal publishes two issues per year, in April-September (first issue) and October-March (second issue). Additionally, the journal follows an <strong data-start="214" data-end="229">"as you go"</strong> publication model, allowing articles to be published at any time once they have completed the review and editing process. </p> <p>Analit is an <strong>open access scientific journal</strong>, meaning it can be accessed by anyone, anywhere, without any cost or institutional restrictions. The journal is committed to providing an inclusive and accessible publication platform for researchers, academics, and practitioners from various relevant disciplines. With its open access policy, Analit supports the widespread dissemination of knowledge and encourages scientific collaboration at the national and international levels.</p> <p> </p> Jurusan Kimia FMIPA Universitas Lampung en-US Analit : Analytical and Environmental Chemistry 2540-8224 <p> </p> <div>Authors who publish with this journal agree to the following terms:</div> <ol> <li>Authors retain copyright and acknowledge that the Analit : Analytical and Environmental Chemistry is the first publisher, licensed under a <a href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons Attribution 4.0 </a><a href="https://creativecommons.org/licenses/by-sa/4.0/" rel="license">International License</a>.</li> <li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.</li> <li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges and earlier and greater citation of published work.</li> </ol> https://analit.fmipa.unila.ac.id/index.php/analit/article/view/219 <p style="font-weight: 400;"> </p> <p style="font-weight: 400;"><strong>ABSTRAK</strong><strong> </strong></p> <p style="font-weight: 400;">Proses daur ulang limbah dapat menghemat energi, mengurangi eksploitasi sumber daya alam, serta meningkatkan nilai ekonomis limbah, salah satunya limbah kaleng minuman. Penelitian ini bertujuan untuk menentukan rasio optimum antara limbah kaleng minuman dan kalium hidroksida (KOH) dalam pembuatan tawas (aluminium sulfat) sebagai koagulan penjernih air. Metode yang digunakan terdiri dari lima tahap, yaitu preparasi, pelarutan, pengendapan alum, pencucian, dan pengeringan. Variabel rasio limbah kaleng terhadap larutan KOH 30% divariasikan sebesar 1%, 2%, 3%, 4%, dan 5%. Parameter yang dianalisis meliputi kadar aluminium dalam tawas, rendemen, dan efektivitas tawas dalam menurunkan kekeruhan air. Hasil menunjukkan bahwa tawas mampu menurunkan kekeruhan air limbah industri dari 55,6 NTU menjadi 16,4 NTU. Rendemen optimum diperoleh pada rasio 3% sebesar 68,91% dengan kadar aluminium 33,80% dan susut pengeringan 9,97%. Efektivitas penurunan kekeruhan ini mengacu pada standar turbiditas menurut SNI 6989.57:2008 dan Permenkes No. 32 Tahun 2017, di mana air bersih non-konsumsi idealnya memiliki kekeruhan di bawah 50 NTU. Dengan demikian, tawas hasil daur ulang ini menunjukkan potensi sebagai koagulan alternatif dalam pengolahan air limbah.</p> <p style="font-weight: 400;"> </p> <p style="font-weight: 400;">Kata kunci: Tawas, limbah kaleng minuman, koagulan, penjernih air</p> <p style="font-weight: 400;"> </p> <p style="font-weight: 400;"><strong>ABSTRACT</strong></p> <p style="font-weight: 400;">Recycling aluminum-based beverage can waste offers a sustainable approach to reducing energy consumption, conserving natural resources, and increasing waste valorization. This study aimed to determine the optimum ratio of beverage can waste to potassium hydroxide (KOH) in synthesizing alum (aluminum sulfate) as an alternative coagulant for wastewater treatment from a petrochemical industry in Anyer, Banten Province, Indonesia. Alum was synthesized through preparation, alkaline dissolution, precipitation, washing, and drying using beverage can waste to 30% KOH ratios of 1–5%. Performance evaluation included yield, aluminum content, drying loss, and coagulation effectiveness based on turbidity, pH, color, and odor.The results showed that recycled alum reduced turbidity from 55.6 NTU to 16.4 NTU, decreased pH from 7.39 to 7.22, and eliminated color and odor. The optimum condition was achieved at a 3% ratio, yielding 68.91% alum with 33.80% aluminum content and 9.97% drying loss. All treated water parameters met Indonesian non-potable clean water standards according to SNI 6989.57:2008 and Ministry of Health Regulation No. 32/2017, demonstrating the potential of recycled alum as a sustainable alternative coagulant.</p> <p style="font-weight: 400;"> </p> <p style="font-weight: 400;">Keywords: alum, aluminum recycling, beverage can waste, coagulant, wastewater treatment.</p> Nina Arlofa Shohifah Annur Angga Tri Prasetyo Ali Hotman Dzulfathi Achyar Abdullah Copyright (c) 2026 Nina Arlofa, Shohifah Annur, Angga Tri Prasetyo, Ali Hotman Dzulfathi, Achyar Abdullah https://creativecommons.org/licenses/by-sa/4.0 2026-04-07 2026-04-07 13 21 10.23960/analit.v10i02.219 https://analit.fmipa.unila.ac.id/index.php/analit/article/view/233 <p style="font-weight: 400;"><strong>ABSTRAK </strong></p> <p style="font-weight: 400;">Serbuk kulit kayu <em>Acacia crassicarpa</em> adalah biomassa lignoselulosa yang kaya akan selulosa, diteliti sebagai biosorben untuk menghilangkan Metil Oranye (MO) dari larutan berair. Studi ini bertujuan untuk menentukan kondisi adsorpsi optimum, termasuk dosis adsorben, pH, waktu kontak, kecepatan pengadukan, konsentrasi adsorbat, dan suhu. Eksperimen adsorpsi dilakukan menggunakan sistem batch, dan adsorben dikarakterisasi menggunakan analisis FTIR, SEM-EDS, dan BET. Kondisi optimum diperoleh pada dosis 0,75 g, pH 2, waktu kontak 80 menit, kecepatan pengadukan 200 rpm, konsentrasi MO 20 ppm, dan suhu 30 °C, mencapai efisiensi adsorpsi sebesar 82,34% dan kapasitas sebesar 5,6492 mg/g. SEM-EDS menunjukkan morfologi berpori yang didominasi oleh unsur karbon dan oksigen. Analisis BET menunjukkan luas permukaan sebesar 0,460 m²/g, sedangkan FTIR mengkonfirmasi keberadaan gugus fungsional hidroksil, karbonil, dan aromatik yang terlibat dalam adsorpsi. Hasil ini membuktikan bahwa akasia dapat menjadi adsorben.</p> <p style="font-weight: 400;"> </p> <p style="font-weight: 400;"><strong> </strong></p> <p style="font-weight: 400;"><strong>ABSTRACT </strong></p> <p style="font-weight: 400;"><em>Acacia crassicarpa</em> bark powder, a lignocellulosic biomass rich in cellulose, was investigated as a biosorbent for the removal of <em>Methyl Orange</em> (MO) from aqueous solutions. This study aimed to determine the optimum adsorption conditions, including adsorbent dosage, pH, contact time, stirring speed, adsorbate concentration, and temperature. Adsorption experiments were conducted using a batch system, and the adsorbent was characterized using FTIR, SEM-EDS, and BET analyses. The optimum conditions were obtained at a dosage of 0.75 g, pH 2, contact time of 80 min, stirring speed of 200 rpm, MO concentration of 20 ppm, and temperature of 30 °C, achieving an adsorption efficiency of 82.34% and a capacity of 5.6492 mg/g. SEM-EDS showed a porous morphology dominated by carbon and oxygen elements. BET analysis showed a surface area of ​​0.460 m²/g, while FTIR confirmed the presence of hydroxyl, carbonyl, and aromatic functional groups involved in the adsorption. These results prove that acacia can be an adsorbent.</p> <p style="font-weight: 400;"> </p> Mukhlis Nafiah Pratiwi Indriyana Syafitri Aswir Itnawita Sofia Anita T. Abu Hanifah Copyright (c) 2025 mukhlis, Ghina, Indriyana Syafitri Aswir , Itnawita, Sofia Anita, T. Abu Hanifah https://creativecommons.org/licenses/by-sa/4.0 2025-04-21 2025-04-21 22 36 https://analit.fmipa.unila.ac.id/index.php/analit/article/view/231 <p>This research aims to determine the optimum parameters for incorporating Indonesian bay leaf extract (DS) into a polyvinyl alcohol (PVA) matrix to form a new polymer, PVA/DS. Taguchi's experimental method was employed to obtain the anti-UV properties and optimal mechanical characteristics of the PVA/DS polymer. Factors studied include DS concentration and sample size. The experimental design was prepared using an orthogonal array L16. The ability to block UV radiation (anti-UV) and the mechanical properties of polymer films are determined using UV Vis spectra and tensile testing (ASTM D638). The results of the Signal-to-Noise Ratio analysis show that the DS concentration factor is the most dominant variable in the anti-UV response, with a DS concentration influence factor (delta) value of 72.261, compared to a sample thickness of 1.605. Likewise, for elongation at break, the delta value of DS concentration is 2.43, which is higher than the cross-sectional area of 1.31. Meanwhile, for the tensile strength performance, neither factor was significant; however, the cross-sectional area factor was more dominant than the DS concentration, with a cross-sectional area delta value of 3.29, which is higher than the DS concentration of 2.77. The addition of DS concentration to the anti-UV response is able to block 100% of UV rays compared to PVA, which is only 16%. Meanwhile, for tensile strength, there was a 50.98% increase. The tensile strength of PVA/DS1 reached 75.67 MPa compared to PVA, which was only 50.12 MPa. Meanwhile, elongation at break increased by 14.71% in PVA/DS0.5 (304.43%) compared to PVA (265.40%). Thus, this research successfully applied the Taguchi method to identify the optimum factor combination with a minimum number of experiments. PVA/DS1 film (1% DS) is a film with optimum conditions that can provide superior performance, making it an alternative to conventional plastics that do not decompose easily</p> Hery Sunarsono Hairul Abral Adjar Pratoto Elisabeth Feberlian Gulo Melbi Mahardika Mat Uzir Wahit Vitri Aprila Handayani Copyright (c) 2026 Hery Sunarsono, Hairul Abral, Adjar Pratoto, Elisabeth Feberlian Gulo, Melbi Mahardika, Mat Uzir Wahit, Vitri Aprila Handayani https://creativecommons.org/licenses/by-sa/4.0 2026-02-12 2026-02-12 1 12 10.23960/analit.v10i02.231