Sari, Amelia Puspita (2025) Pemisahan Ion Ca2+, Mg2+ dan SO42- dalam Larutan Bittern dengan Menggunakan Membran Nanofiltrasi. Undergraduate thesis, UPN Veteran Jawa Timur.
![[img]](https://repository.upnjatim.ac.id/style/images/fileicons/text.png) |
Text (Cover)
Cover.pdf Download (4MB) |
|
Text (Bab 1)
BAB I.pdf Download (199kB) |
|
Text (Bab 2)
BAB II.pdf Restricted to Repository staff only until 30 October 2027. Download (393kB) |
|
Text (Bab 3)
BAB III.pdf Restricted to Repository staff only until 30 October 2027. Download (310kB) |
|
Text (Bab 4)
BAB IV.pdf Restricted to Repository staff only until 30 October 2027. Download (354kB) |
|
Text (Bab 5)
BAB V.pdf Download (122kB) |
|
Text (Daftar Pustaka)
DAFTAR PUSTAKA.pdf Download (222kB) |
|
Text (Lampiran)
LAMPIRAN.pdf Restricted to Repository staff only Download (527kB) |
Abstract
Bittern is a by-product generated from the evaporation or precipitation of seawater that does not crystallize into salt. It contains minerals such as magnesium, calcium, sulfate, and sodium chloride. Bittern has the potential to be processed further to produce salt, helping to meet increasing salt demand, reduce waste, and enhance economic value. Purification is required to remove impurities and obtain high-purity salt. Impurities such as Ca²⁺, Mg²⁺, and SO₄²⁻ can negatively affect salt quality and cause bitterness, making separation necessary. In this study, nanofiltration membranes were used as a pressure-driven separation technology, featuring pore sizes around 0.001 μm suitable for selective ion removal. The effects of pressure and operating time were evaluated to determine optimal separation performance. The highest rejection efficiency of 71.7708% was achieved at 8 atm and 120 minutes of operation. The highest salt mass fraction obtained was 84.35%, which is slightly below the Indonesian SNI 4435:2017 standard for iodized edible salt raw material (minimum 85%).
| Item Type: | Thesis (Undergraduate) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Contributors: |
|
||||||||
| Subjects: | Q Science > Q Science (General) | ||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | AMELIA PUSPITA SARI | ||||||||
| Date Deposited: | 04 Nov 2025 02:27 | ||||||||
| Last Modified: | 04 Nov 2025 02:27 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/45916 |
Actions (login required)
 |
View Item |