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All Journal VALENSI Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan PROSIDING SEMINAR KIMIA Chemistry Indonesian Journal of Chemical Research JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Pengabdian Kepada Masyarakat (Mediteg) Jurnal Ilmiah Berkala: Sains dan Terapan Kimia JURNAL HUTAN TROPIS JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT Jurnal Natural Scientiae
Dahlena Ariyani
Program Studi Kimia Fakultas MIPA Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics Social Sciences

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Effect of Macroporous Chitosan-Tripolyphosphate Beads On COD And Turbidity Values in Sasirangan Wastewater Ariyani, Dahlena; Maulana, Riana; Irawati, Utami; Mujiyanti, Dwi Rasy; Umaningrum, Dewi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Article in Press 2026 (For Upcoming Issue)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v0i0.%p

Abstract

A batch system was applied to study the effect of using macroporous cross-linked chitosan–Tripolyphosphate (TPP) beads on Chemical Oxygen Demand (COD) values and turbidity in Sasirangan wastewater. The ionic cross-linking reagent sodium tripolyphosphate was used to obtain more rigid chitosan beads, and sodium bicarbonate was added as a porogen. The COD value was analyzed using the titrimetric method and the turbidity value using the turbidimetric method. This analysis was used to study the effect of dose and pH on the performance of beads in sasirangan wastewater. SEM characterization of the beads showed that NaHCO₃ as porogen enlarged the pores in the beads of chitosan-TPP, and FTIR characterization showed interactions among chitosan, chitosan–TPP beads, and wastewater. The results showed that higher chitosan dosages resulted in increased final COD values in sasirangan wastewater, and the higher the pH, the higher the COD value. The addition of beads reduced the turbidity value of the sasirangan wastewater, where higher doses led to greater turbidity reduction, with the optimum achieved at 400 mL/L. The pH conditions did not affect the reduction in the turbidity value where with less than 1% variation observed.
Efficiency of Chitosan and Alum as Coagulants for Peat Water Treatment Ariyani, Dahlena; Irawati, Utami; Rohman, Taufiqur
Jurnal Sains dan Terapan Kimia Vol 20, No 1 (2026)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v20i1.25697

Abstract

Penelitian ini mengkaji efisiensi dari kitosan dan tawas sebagai koagulan untuk pengolahan air gambut. Dosis dan pH optimum koagulasi ditentukan berdasarkan penurunan turbiditas dan kadar senyawa organik dalam air gambut setelah dikoagulasi dengan kitosan dan tawas. Hasil penelitian menunjukkan bahwa dosis optimum untuk kitosan sebesar 5 mg/L dan tawas sebesar 15 mg/L dengan penurunan turbiditas sebesar 81,91% dan 76,28%. Koagulasi oleh kitosan dan tawas dipengaruhi oleh pH, dimana koagulasi oleh kitosan berlangsung optimum pada pH 8 dengan penurunan turbiditas sebesar 83,36%. Untuk tawas, pH optimum koagulasi adalah pada pH 7 dengan penurunan turbiditas sebesar 88,02%. Hasil penelitian menunjukkan bahwa tawas lebih efektif dibandingkan dengan kitosan dalam menurunkan kadar senyawa organik pada air gambut.
Co-Authors Abdullah Abdullah Abdullah Abdullah Ahmad Budi Junaidi Azidi Irwan David Hamonangan Simanungkalit Dewi Umaningrum Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Edi Mikrianto Hilma, Nabila Khairiyatul Intan Aprilia Rahayu Iriansyah Iriansyah Iriansyah Iriansyah, Iriansyah Jihan Askia Kamilia Mustikasari Kamilia Mustikasari kholifatu rosyidah Kholifatu Rosyidah Komsatun Fitriana Lisa, Muna Mardi Santoso Maria Dewi Astuti Maulana, Riana Melissa Melissa Muhammad Aisy Nisa, Hayatun Noer Komari Noor Cahaya Nurmilatina Nurmilatina Nurul Paujiah Puryati Ningsih, Erni Radna Nurmasari Rahmat Yunus Rahmat Yunus Ramlah Syam Ratih Wulandari Rd Indah Nirtha Retno Elya Rohmah Riana Maulana Rizky Pradana Nugroho Elyasat Rodiansono Rodiansono Sunardi Sunardi Taslim Ersam Taslim Ersam Taufiqur Rohman Umi Baroroh Lili Utami Uripto T Santoso Uripto T Santoso, Uripto T Uripto Trisno Santoso Utami Irawati Zacky Insan