The Effects of Dry and Wet Grinding Processes on The Salt Quality

Nizar Amir, Makhfud Efendy, Rachmad Hidayat, Misri Gozan

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Studies were conducted on the salt quality, such as NaCl percent and whiteness achieved by dry and wet grinding methods. Crude solar salt is carefully collected from traditional solar salt ponds to ensure the uniformity of the sample. Several salt processing methods were applied in this research, such as washing, grinding, and dewatering by centrifuge hydro extractor and drying. The effect of reducing salt particle size to 0.6 and 0.25 mm was also studied. The dry grinding method is conducted before the washing stage, while the wet grinding method is applied after the washing stage. Both dry and wet grinding methods provide high-quality salt products, indicating high NaCl percent and whiteness. The dry grinding method produces higher NaCl percent and whiteness than the wet grinding method. However, the wet grinding method was better in water management and equipment durability with loss of salt losses during the washing stage. Finally, both grinding methods have advantages and disadvantages, so for developing the salt processing industry, both methods should be correctly chosen and match product output requirements.

Original languageEnglish
Article number07011
JournalE3S Web of Conferences
Publication statusPublished - 6 Dec 2021
Event2021 International Conference on Science and Technology, ICST 2021 - Ternate, Indonesia
Duration: 27 Oct 202128 Oct 2021


  • Centrifuge Hydro Extractor
  • Grinding Method
  • Salt Quality


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