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All Journal Chimica et Natura Acta Jurnal Ilmiah Berkala: Sains dan Terapan Kimia
Yulistya Vidyaning Maulidya
Universitas Tanjungpura
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Materials Science & Nanotechnology

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Adsorpsi Senyawa Organik pada Lindi Menggunakan Cangkang Kerang Ale-Ale (Meretrix meretrix) Secara Batch Yulistya Vidyaning Maulidya; Rudiyansyah Rudiyansyah; Nelly Wahyuni
Chimica et Natura Acta Vol 9, No 3 (2021)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v9.n3.35607

Abstract

Penimbunan sampah di TPA Batu Layang, Pontianak, Kalimantan Barat menyebabkan terbentuknya air lindi yang memiliki konsentrasi COD sangat tinggi. Hal tersebut menyebabkan dampak buruk terhadap lingkungan dan kesehatan. Pengolahan air lindi secara sederhana dapat dilakukan menggunakan metode adsorpsi. Penelitian ini bertujuan untuk mengetahui variasi waktu kontak, massa adsorben, dan kecepatan pengadukan optimum terhadap efisiensi adsorpsi. Karakterisasi menggunakan FTIR terhadap adsorben cangkang kerang ale-ale menunjukan adanya puncak pada bilangan gelombang 1452 cm-1, 852 cm-1, dan 716 cm-1 yang menandakan keberadaan gugus C-O. Pengukuran konsentrasi COD pada penelitian ini dilakukan secara titrasi permanganometri. Adsorpsi keadaan optimum diperoleh pada massa 4,5 g dengan kecepatan pengadukan 200 rpm selama 240 menit yang dapat menurunkan konsentrasi COD pada air lindi dari 1131,28 mg/L menjadi 456,94 mg/L dengan efisiensi adsorpsi sebesar 59,61%. Adsorpsi dilakukan kembali pada keadaan optimum mampu menurunkan konsentrasi COD pada air lindi dibawah baku mutu menjadi 288,35 mg/L dengan efisiensi adsorpsi sebesar 36,89%.
Adsorption of Organic Compounds in Leachate using Precipitated Calcium Carbonate (PCC) from Ale-Ale Shells Yulistya Vidyaning Maulidya
Jurnal Sains dan Terapan Kimia Vol 16, No 2 (2022)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v16i2.12136

Abstract

Leachate waste from piles of garbage in the landfill (TPA) has a high concentration of Chemical Oxygen Demand (COD). High COD concentrations can cause a decrease in dissolved oxygen concentrations in the waters. Simple leachate treatment is carried out using the adsorption method with adsorbents derived from food waste. This research used Precipitated Calcium Carbonate (PCC) adsorbent from ale-ale shells. This study aims to evaluate the effect of particle size and calcination temperature variations on PCC yield and analyze the adsorption ability of PCC adsorbents in reducing COD concentrations. In addition, PCC was characterized using an infrared spectrophotometer (FTIR) and an X-ray diffractometer (XRD). Determination of COD concentration was carried out by permanganometric titration. The optimum PCC yield of 57.75% was obtained from Ale-ale shells with a particle size of 40 mesh with a calcination temperature of 800°C. The functional groups in PCC are C-O at wave numbers 1403 cm-1, 873 cm-1, and 713 cm-1. XRD characterization showed the presence of a calcite phase with a high peak intensity at 2 = 29.38°. The adsorption of organic matter on leachate by PCC (4.5 g/50 mL) with a stirring speed of 200 rpm for 240 minutes reduced the COD concentration of leachate from 1131.28 mg/L to 456.94 mg/L with an adsorption efficiency of 59.61%.
Co-Authors Nelly Wahyuni Rudiyansyah Rudiyansyah