The Observation of Struvite (MgNH4 PO4 .6H2O) Precipitation Using Visual MINTEQ

Authors

  • Radissa Dzaky Issafira Department of Mechanical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia
  • Luluk Edahwati Department of Mechanical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia
  • Sutiyono Department of Chemical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia
  • Ndaru Adyono Department of Mechanical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia
  • Wiliandi Saputro Department of Mechanical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia
  • Wahyu Dwi Lestari Department of Mechanical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia
  • Ahmad Khairul Faizin Department of Mechanical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia
  • Tria Puspa Sari Department of Mechanical Engineering, Universitas Pembangunan Nasional "Veteran" Jawa Timur, Surabaya 60294 Indonesia

DOI:

https://doi.org/10.11594/nstp.2021.1447

Keywords:

Precipitation, wastewater, struvite, virtual MINTEQ

Abstract

Struvite or Magnesium Ammonium Phosphate Hexahydrate (MgNH4 PO4.6H2O) is one of the precipitates that generally form in the piping system. The formation of struvite in the piping system is one of the serious problems that can cause blockages, reduced flow volume, and pipe diameter so that it will increase maintenance and production costs. This formation of struvite scale in industrial instruments is detrimental; however, struvite can be used as raw material for slow-release fertilizers. This study will observe the effect of pH in the range of 8, 8.5, 9, 9.5, and 10 on the formation of struvite compositions, consisting of Mg, NH4, PO4, Ca, and K in the surrounding temperature 35oC. The results of this study will be observed using visual MINTEQ software. The result shows that the most suitable pH for struvite formation is 9.5.

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Published

16-11-2021

How to Cite

Issafira, R. D. ., Edahwati, L. ., Sutiyono, Adyono, N. ., Saputro, W. ., Lestari, W. D. ., Faizin, A. K. ., & Sari, T. P. . (2021). The Observation of Struvite (MgNH4 PO4 .6H2O) Precipitation Using Visual MINTEQ. Nusantara Science and Technology Proceedings, 308-312. https://doi.org/10.11594/nstp.2021.1447

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