Characteristics and Applications of Sea Water Reverse Osmosis Reject Water of PT Cirebon Electric Power as Voltaic Cell Electrolyte and Salt Raw Material

Dimas Agung Pramudikto, Satya Nugroho, Agik Dwika Putra, Ilham Satria Raditya Putra, Sigit Setyawan, Teguh Ariyanto


Sea Water Reverse Osmosis (SWRO) reject water produced by PT Cirebon Electric Power has not been optimally utilized. In this research, a study of the characteristics of SWRO reject water was carried out to determine important properties such as turbidity, conductivity, pH and salinity. This characteristic is important as a basis for consideration of SWRO reject water applications. In addition, data were taken from a fairly long period of 5 years of SWRO operation (2016-2021) so that the consistency of the data can be known. The results showed that SWRO reject water had low turbidity (0.18±0.08 NTU), high conductivity of ca. 76.000 µS/cm, neutral pH and high salinity (4.6±0.3%). The study of the utilization of SWRO reject water was then carried out, namely as an electrolyte for salt water lamps and as raw material for making salt. The results showed that SWRO reject water can be used as an electrolyte for salt water lamps which produces a voltage potential up to 1.4 Volts (20% higher than seawater electrolyte). As a raw material for salt, the salt produced has excellent characteristics (eg 99% NaCl) and complies with SNI 3556:2016, except for the KIO3 content.


air reject SWRO; garam; PT CEP; sel Volta



  • There are currently no refbacks.

Article Metrics

Metrics Loading ...

Metrics powered by PLOS ALM

Eksergi p-ISSN  1410-394X, e-ISSN 2460-8203,  is published by Chemical Engineering Department, Faculty of Industrial Engineering, Universitas Pembangunan Nasional "Veteran" Yogyakarta.

Contact Chemical Engineering Department, UPN "Veteran" Yogyakarta Jl. SWK 104 (Lingkar Utara) Condong catur Sleman Yogyakarta

EKSERGI is associated to APTEKIM (Asosiasi Pendidikan Tinggi Teknik Kimia), Indonesia.

 Creative Commons License

Eksergi by is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.



Lihat Statistik Jurnal Kami