Effectiveness of biological filter media derived from sea urchin skeletons

Akino, Masaki; Aso, Shingo; Kimura, Masashi

doi:10.1007/s12562-015-0900-9

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…Persentase penurunan COD belum mengalami penurunan yang signifikan dan masih belum memenuhi baku mutu yang ditetapkan sebesar 100 mg/L, hal ini diduga disebabkan karena waktu kontak yang masih kurang, sebelum dilakukan pengolahan dengan menggunakan biofilter Kaldness K1 dan Coral Sand konsentrasi air limbah 627,9 mg/L, dan setelah melakukan proses pengendapan pada air limbah selama 2-3 jam pada 0 hari menunjukkan konsentrasi 726,9 mg/L, setelah pengolahan selama 1 hari waktu kontak air limbah dengan biofilter menunjukkan hasil 294,26 mg/L, dan setelah pengolahan air limbah menggunakan Biofilter Kaldness K1 dan Coral Sand dengan waktu kontak selama 2 hari konsentrasi mencapai 154,22 mg/L, terjadi penurunan konsentrasi COD yang signifikan [14].…”

Section: Aplikasi Biofilter Menggunakan Kaldness K1 Dan Coral Sandunclassified

Pengolahan Air Limbah Pasar Al Mahira Lamdingin Banda Aceh Menggunakan Modifikasi Biofilter Kaldness K1 dan Coral Sand

Raimon,

Elvitriana,

Nizar

2023

JSE

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This study aims to treat wastewater from the Al Mahira Lamdingin Market, Banda Aceh City using modified Kaldness K1 Biofilter and Coral Sand. Wastewater were filtered and precipitated in a vessel for 3 hours and then flowed into the Kaldness K1 Biofilter vessel and Coral Sand for 2 days. The treated water was then analyzed to obtain the characteristics of the main parameters such as pH, TSS, BOD, and COD. The results showed that wastewater from the Al Mahira Lamdingin Market had characteristics including pH 7.77 mg/l, BOD 224.9 mg/L, COD 627.92 mg/L, and TSS 336 mg/L, respectively. When wastewater treatment process was carried out using the Kaldness K1 Biofilter and Coral Sand with a contact time of 2 days, the concentration of each main parameter decreased to 98.3% (TSS), 98.7% (BOD), and 75.4% (COD). These results indicated that wastewater treatment process using the Kaldness K1 Biofilter and Coral Sand was effective for domestic wastewater treatment at Al Mahira Lamdingin Market, Banda Aceh City.

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Section: Aplikasi Biofilter Menggunakan Kaldness K1 Dan Coral Sandunclassified

Pengolahan Air Limbah Pasar Al Mahira Lamdingin Banda Aceh Menggunakan Modifikasi Biofilter Kaldness K1 dan Coral Sand

Raimon,

Elvitriana,

Nizar

2023

JSE

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Preparation of flexible bone tissue scaffold utilizing sea urchin test and collagen

Manchinasetty

Oshima

Kikuchi

2017

J Mater Sci: Mater Med

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Gonads of sea urchin are consumed in Japan and some countries as food and most parts including its tests are discarded as marine wastes. Therefore, utilization of them as functional materials would reduce the waste as well as encourage Japanese fishery. In this study, magnesium containing calcite granules collected from sea urchin tests were hydrothermally phosphatized and the obtained granules were identified as approximately 82% in mass of magnesium containing β-tricalcium phosphate and 18% in mass of nonstoichiometric hydroxyapatite, i.e., a biphasic calcium phosphate, maintaining the original porous network. Shape-controlled scaffolds were fabricated with the obtained biphasic calcium phosphate granules and collagen. The scaffolds showed good open porosity (83.84%) and adequate mechanical properties for handling during cell culture and subsequent operations. The MG-63 cells showed higher proliferation and osteogenic differentiation in comparison to a control material, the collagen sponge with the same size. Furthermore, cell viability assay proved that the scaffolds were not cytotoxic. These results suggest that scaffold prepared using sea urchin test derived calcium phosphate and collagen could be a potential candidate of bone void fillers for non-load bearing defects in bone reconstruction as well as scaffolds for bone tissue engineering.

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Effectiveness of biological filter media derived from sea urchin skeletons

Cited by 2 publications

References 8 publications

Pengolahan Air Limbah Pasar Al Mahira Lamdingin Banda Aceh Menggunakan Modifikasi Biofilter Kaldness K1 dan Coral Sand

Pengolahan Air Limbah Pasar Al Mahira Lamdingin Banda Aceh Menggunakan Modifikasi Biofilter Kaldness K1 dan Coral Sand

Preparation of flexible bone tissue scaffold utilizing sea urchin test and collagen

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