Conversion of Magnesium from Bittern with Sodium Phosphate Addition through Precipitation Process

Dodik Hendra Saputra; Evlyansa Bunga Rizka Ananda; Dyah Suci Perwitasari; Caecilia Pujiastuti

Authors

Dodik Hendra Saputra Universitas Pembangunan Nasional Veteran Jawa Timur Author
Evlyansa Bunga Rizka Ananda Universitas Pembangunan Nasional Veteran Jawa Timur Author
Dyah Suci Perwitasari Universitas Pembangunan Nasional “Veteran” Jawa Timur Author
Caecilia Pujiastuti Universitas Pembangunan Nasional “Veteran” Jawa Timur Author

Keywords:

Bittern, Magnesium Recovery, Sodium Phosphate, Precipitation, Magnesium Phosphate

Abstract

Bittern, a by-product of the salt production process, contains high concentrations of magnesium ions, which have significant economic potential and use value in various fields. The objective of this study is to recover magnesium from bittern using sodium phosphate (Na₃PO₄) through the process of chemical precipitation. The reaction between magnesium and phosphate produces magnesium phosphate compounds, which are commercially valuable in the industrial and agricultural sectors. The present study analysed the effect of several process parameters, including pH, temperature and reaction time, on magnesium recovery efficiency. Optimum conditions were obtained at pH 9 with the addition of a 15% concentrated Na₃PO₄ solution. The precipitate formed was then characterised using X-Ray Fluorescence (XRF) to confirm the presence of magnesium phosphate. The findings demonstrate that this method facilitates the effective recovery of magnesium from bittern, exhibiting both high efficiency and good selectivity. This approach has the potential to provide a sustainable solution for the treatment of bittern effluent, whilst concomitantly producing environmentally friendly value-added products.

References

[1] N. I. Nuzula, W. S. W. Pratiwi, N. Indriyawati, And E. Efendy, ‘Analisa Komposisi Kimia Pada Bittern (Studi Kasus Tambak Garam Desa Pedelegan Pamekasan Madura)’, Prosiding Seminar Nasional Kahuripan I Tahun 2020, Pp. 173–176, Oct. 2020.

[2] R. Yuliastuti and H. B. Cahyono, ‘Pemanfaatan Limbah Cair Cucian Industri Garam Sebagai Mg(OH)2’, Jurnal Teknologi Lingkungan, Vol. 21, No. 2, Pp. 213–218, Jul. 2020, Doi: 10.29122/Jtl.V21i2.3778.

[3] Giman and Mahmiah, ‘Pemanfaatan Limbah Garam (Bittern) untuk Pembuatan Magnesium Klorida (MgCl2)’, Jurnal Riset Kelautan Tropis (Journal of Tropical Marine Research) (J-Tropimar), Vol. 1, No. 2, P. 31, 2019, Doi: 10.30649/Jrkt.V1i2.31.

[4] I. S. Widyananda, E. P. Budi, K. Sumada, And S. Muljani, ‘Kajian Produksi Pupuk Granul Kalsium-Magnesium-Fosfat dari Cangkang Kerang Hijau dan Asam Fosfat’, Journal of Chemical and Process Engineering, Vol. 3, No. 1, Pp. 26–30, 2022, Accessed: Feb. 11, 2025. [Online]. Available: Www.Chempro.Upnjatim.Ac.Id

[5] B. S. Dewangga, Moch. A. Setyanugraha, And L. Edahwati, ‘Uji Karakteristik Magnesium Fosfat dari Pelarutan Mineral Dolomit dengan Asam Fosfat’, Journal of Chemical Process Engineering, Vol. 7, No. 1, May 2022.

[6] I. Fadlilah, A. Prasetya, And P. Mulyono, ‘Recovery Ion Hg2+ Dari Limbah Cair Industri Penambangan Emas Rakyat Dengan Metode Presipitasi Sulfida Dan Hidroksida’, Jurnal Rekayasa Proses, Vol. 12, No. 1, Pp. 23–31, May 2018, Doi: 10.22146/Jrekpros.34496.

[7] K. C. Wanta Et Al., ‘Pengaruh Derajat Keasaman (Ph) dalam Proses Presipitasi Hidroksida Selektif Ion Logam dari Larutan Ekstrak Spent Catalyst’, Jurnal Rekayasa Proses, Vol. 13, No. 2, Pp. 94–105, Jul. 2019, Doi: 10.22146/Jrekpros.44007.

[8] B. H. Radja, A. Firdani, And M. Billah, ‘Kinetika Reaksi Pembuatan Magnesium Hidroksid dari Bittern’, Journal of Chemical and Process Engineering, Vol. 2, No. 1, Pp. 23–28, Feb. 2021, Doi: 10.33005/Chempro.V2i01.73.

[9] A. Salsabila Nayla Rahmawati, A. Setiawan Wicaksono, T. Dzakiyya El Nisa, T. Shofiana Latifah, P. Meliana Hutahaean, ‘Analisis Kadar Logam Berat Dalam Kosmetik Dengan Metode Aas: Studi Kasus Pada Sediaan Krim Pemutih Wajah’, Jurnal Ilmiah Wahana Pendidikan, Vol. 2024, No. 16, Pp. 43–56, 2024, Doi: 10.5281/Zenodo.13761269.

[10] D. R. Zuchrillah and S. Julaika, ‘Pengaruh Suhu Dan Waktu Furnace Dalam Pembuatan Mgcl2.6h2o Dari Bittern’, Sains Dan Teknologi Terapan V, Pp. 189–194, 2017.

[11] Y. Hendrawan, S. H. Sumarlan, B. D. Argo, And F. M. Kusuma, ‘Rancang Bangun Fungsional Alat Pervaporasi dan Optimasi Kadar Etanol dengan Variabel Suhu Feed dan Tekanan Pada Sisi Permeat Meggunakan Response Surface Methodology’, Jurnal Keteknikan Pertanian Tropis Dan Biosistem, Vol. 5, No. 2, Pp. 129–137, Aug. 2017.

[12] Ika Candrika Wibisono, Alkimia: Jurnal Ilmu Kimia Dan Terapan, Vol. 2, P. 29, 2018.

[13] R. B. Baird, A. D. Eaton, And E. W. Rice, Standard Methods for The Examination of Water and Wastewater, 23rd Edition. Washington, D.C.: American Public Health Association, 2017.

[14] A. Setiawan, F. F. Jannah, T. A. Ramadani, And T. U. Dewi, ‘Penyisihan Fosfat dan Amonium Pada Air Limbah Menggunakan Presipitasi Struvite dengan Penambahan Bittern’, Jurnal Pengendalian Pencemaran Lingkungan (Jppl), Vol. 4, No. 1, Pp. 21–28, Mar. 2022.

[15] B. H. Perkasa, J. Kusnadi, And E. S. Murtini, ‘Optimasi Penambahan Kitosan dan Lama Perendaman Terhadap Fisikokimia Cabai Keriting (Capsicum Annuum L.) Menggunakan RSM’, Jurnal Pangan Dan Agroindustri, Vol. 9, No. 1, Pp. 13–24, Jan. 2021.