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

Eksergi Pub Date : 2022-07-26 DOI:10.31315/e.v19i2.5361

D.A. Pramudikto, S. Nugroho, Agik Dwika Putra, Ilham Satria Raditya Putra, S. Setyawan, T. Ariyanto

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Abstract

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.

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海水反渗透废水作为光伏电池电解液和盐原料的特性及应用

PT Cirebon电力公司生产的海水反渗透(SWRO)废水没有得到最佳利用。在本研究中，对SWRO污水的特性进行了研究，以确定浊度、电导率、pH和盐度等重要特性。这一特性是考虑SWRO拒绝水应用的重要基础。此外，数据取自SWRO运行的相当长的5年时间(2016-2021年)，以便了解数据的一致性。结果表明，SWRO污水具有低浊度(0.18±0.08 NTU)、高电导率(约76.000µS/cm)、中性pH和高盐度(4.6±0.3%)等特点。然后对SWRO废水的利用进行了研究，即作为盐水灯的电解液和制盐的原料。结果表明，SWRO废液可作为盐水灯的电解液，产生高达1.4伏的电压电位(比海水电解液高20%)。作为盐的原料，生产的盐具有优异的特性(如99% NaCl)，符合SNI 3556:2016，除了KIO3含量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Eksergi

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4 weeks