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All Journal BULETIN OSEANOGRAFI MARINA Jurnal Kimia Riset Juvenil: Jurnal Ilmiah Kelautan dan Perikanan
Wiwit Sri Werdi Pratiwi
Universitas Trunojoyo Madura
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Environmental Science

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STUDI PENGGUNAAN SENYAWA CaCl2 DALAM MENURUNKAN KADAR SULFAT PADA LIMBAH PRODUKSI GARAM Nike Ika Nuzula; Wiwit Sri Werdi Pratiwi; Novi Indriyawati; Makhfud Efendy
Jurnal Kimia Riset Vol. 6 No. 1 (2021): Juni
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v6i1.23159

Abstract

Bittern adalah salah satu hasil dari proses produksi garam yang saat ini pemanfaatannya belum maksimal. Hal ini dikarenakan banyaknya pengotor yang terkadung didalamnya. Sulfat merupakan pengotor tertinggi kedua dalam bittern. Penelitian ini dilakukan untuk mengikat sulfat pada bittern dengan menggunakan CaCl₂.2H₂O dengan metode penambahan yang berbeda-beda. Variasi yang digunakan dalam penelitian ini adalah perbandingan mol antara bittern dengan Kristal CaCl2. Perbandingan mol terbaik antara bittern dengan Kristal CaCl2 didapatkan rasio sebesar 1: 0.9 dengan kadar sulfat sebesar 4.83 mg/L, dimana kadar awal sulfat pada sampel bittern sebesar 41.257 g/L atau setara dengan 41257 mg/L..
ANALYSIS OF CHEMICAL CONTENTS IN RAW MATERIAL OF RICH MINERALS SEA SALT Fawait Afnani; Wiwit Sri Werdi Pratiwi; Makhfud Effendy; Novi Indriyawati; Vellia Yoseva
Jurnal Kimia Riset Vol. 7 No. 2 (2022): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v7i2.38742

Abstract

The mineral content of seawater is a natural raw material to produce rich mineral sea salt. Rich mineral sea salt is a consumption salt with a NaCl content of <50% used to live a low sodium diet for a healthy lifestyle. In general, traditional sea salt was produced with the multistage evaporation method to obtain a NaCl content of ≥ 94.7%, whereas the production of rich mineral sea salt uses a total evaporation method and then removes the salt flower at a certain concentration to get low sodium chlorine and contain other natural minerals. This study aims to analyze the chemical content of the raw material of rich mineral sea salt. The location of seawater used as raw material for rich mineral sea salt is Camplong District, Sampang Regency. Samples were obtained from sea level with a distance of ± 400 m from the coastline and carried out during high tide conditions. The chemical analysis of seawater samples consists of Na, Mg, Ca, K, Fe, Cl− dan SO42−. The analysis method is based on the Indonesian National Standard of environmental quality test. The results of the major mineral analysis showed that the largest mineral content of seawater was calcium (Ca2+) at 492.350±10.395 mg/L and Sodium (Na+) at 482,000±1.979 mg/L. In contrast, the smallest mineral content is iron mineral (Fe2+) of < 0.08 mg/L. These results will be used for preliminary data before producing naturally rich mineral sea salt.
Distribusi Nutrien Dan Klorofil-A Di Perairan Pedelegan, Pademawu, Kabupaten Pamekasan Ilham Andika Aprianto; Ary Giri Dwi Kartika; Wiwit Sri Werdi Pratiwi; Makhfud Effendy
Buletin Oseanografi Marina Vol 12, No 2 (2023): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v12i2.49513

Abstract

Pantai Pedelegan merupakan salah satu pantai kawasan wisata yang terletak di Kabupaten Pamekasan. Perairan Padelegan dekat dengan ekosistem mangrove, estuari dan berdekatan dengan tambak garam. Ekosistem tersebut merupakan penunjang kesuburan perairan yang dapat diketahui dari kadar nutrient dan distribusi klorofil-a yang ada. Penelitian ini bertujuan untuk mengetahui distribusi nutrien dan biomassa fitoplankton serta hubungannya dengan parameter kualitas perairan. Pengambilan sampel dilakukan pada sembilan titik. Metode yang digunakan menganalisis kandungan nitrat yaitu bursin asam sulfanilat, fosfat dengan spektrofotometer secara asam askorbat, silika menggunakan metode nessler dan biomassa fitoplankton menggunakan metode APHA. Hasil penelitian menunjukkan bahwa kadar nutrien di perairan Padelegan memiliki distribusi yang berbeda-beda. Kadar nitrat, fosfat dan klorofil-a tertinggi terletak pada titik empat yang merupakan daerah peralihan menuju laut lepas pada arah barat daya. Sedangkan kadar silika tertinggi ditunjukkan pada titik dua yang merupakan daerah pesisir pada arah barat laut. Berdasarkan hasil korelasi rank spearman, silika menunjukkan korelasi yang paling kuat terhadap klorofil-a dibandingkan dengan nutrien lainnya dengan nilai rho(ρ) sebesar 0,5435. Selanjutnya ditambahkan, suhu adalah parameter kualitas air yang memiliki keeratan paling kuat dengan klorofil-a (rho(ρ) = 0,3766). Peningkatan kadar klorofil-a di perairan padelegan berkaitan erat dengan peningkatan kadar nutrien. Pedelegan Beach is one of the beaches in the tourist area located in Pamekasan Regency. Padelegan waters are close to mangrove ecosystems and estuaries and adjacent to salt ponds. This study aims to determine the distribution of nutrients and phytoplankton biomass and their relationship to water quality parameters. Sampling was carried out at nine points using the SNI 6989.59:2008 method. The method used to analyze the nitrate content is brucine sulfanilic acid, phosphate with an ascorbic acid spectrophotometer, silica using the Nessler method, and phytoplankton biomass using the APHA method. The results showed that nutrient levels in Padelegan waters had different distributions. The highest levels of nitrate, phosphate, and chlorophyll-a are located at point four which is a transitional area to the high seas in the southwest direction. While the highest silica content is shown at the second point , a coastal area in the northwest direction. Based on the Spearman rank correlation results silica showed the strongest correlation to chlorophyll-a compared to other nutrients with a rho(ρ) value of 0.5435. Furthermore, the temperature is a water quality parameter that has the strongest affinity with chlorophyll-a (rho(ρ) = 0.3766). The increase in chlorophyll-a levels in Padelegan waters is closely related to the increase in nutrient levels.
Developing The Salt Centre of Excellence as a Unique Selling Proposition University of Trunojoyo Madura Makhfud Efendy; Wiwit Sri Werdi Pratiwi; Aries Dwi Siswanto
Juvenil Vol 4, No 2: Mei 2023
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v4i2.20171

Abstract

AbstractAs one of the most enormous salt globally, Indonesia consumes more than 3 million tonnes of salt annually, mainly imported from several countries. However, Indonesia is the second-longest equatorial coastline in the world, with abundant salt resources from the sea. Developing a salt industry development centre on Madura Island is a crucial solution to eradicate Indonesia's label as a salt imported dependent state. Madura Island has large salt production and is labelled a salt island. Being a centre of academics on Madura Island, the University of Trunojoyo Madura is qualified as a salt centre of Excellence due to having met thorough research and development, sourcing absorptive and disseminating capacity guidelines. Research and academic activities in the salt field, such as attending scientific seminars and conferences, participating in workshops and other centers of excellence collaboration, have been done in a decade as academic Excellence. Several industries have produced and utilized the commercialization of research products like fortified salt, rich mineral salt, and solus per aqua (SPA) salt. University also develops collaborative research, advisory and informal knowledge exchange between the university and industry. To implement this program's success, the university develops information systems technology to manage the Centre of excellent performances. Finally, based upon the work done on several guidelines, the university's positive impact on research, industrial corporation, and product dissemination has increased dramatically over the years. Keywords: salt centre of excellent, unique selling proposition, University of Trunojoyo Madura
Production of Purified Sodium Chloride as Industrial Standard Wiwit Sri Werdi Pratiwi; Makhfud Efendy; Nike Ika Nuzula; Mohammad Rahem; Fawait Afnani
Juvenil Vol 4, No 4: November (2023)
Publisher : Department of Marine and Fisheries, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/juvenil.v4i4.23053

Abstract

ABSTRACTThe research described about chemical treatments to increase percentage of sodium chloride from crude salt which was obtained from four districts on Madura Island. The conventional salt process contains percentage of sodium chloride 85.99%; 81.90%; 84.825% and 86.87% from Sumenep, Pamekasan, Sampang and Bangkalan respectively. Those results were still below the standard quality of industrial salt (98.5% of dry base). In this study, increasing percentage of sodium chloride was done by re-crystallization method. Crude salt was diluted with distilled water to form saturated solution, then added sodium hydroxide, barium chloride and hydrochloride acid to remove impurities such as magnesium hydroxide, calcium hydroxide, potassium hydroxide, barium sulfate, and carbonic acid. The results showed that the purified of sodium chloride enhanced 100.03%; 98.86%; 98.86% and 99.7% for salt products from Sumenep, Pamekasan, Sampang and Bangkalan, respectively and accepted by industrial standard.Keywords: Purified salt, chemical treatments, industrial standard
Co-Authors Aries Dwi Siswanto Ary Giri Dwi Kartika Desi Suryana Suci Fawait Afnani Fawait Afnani Ilham Andika Aprianto Makhfud Efendy Makhfud Effendy Makhfud Effendy Makhfud Effendy Mohammad Rahem Novi Indriyawati Novi Indriyawati Nuzula, Nike Ika Vellia Yoseva