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All Journal Chemistry Indonesian Journal of Chemical Research Jurnal Penelitian Dan Pengkajian Ilmiah Sosial Budaya
Wati, Ina
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Lead Ion Removal in Water Using Low Methoxy Pectin-Guar Gum Beads Hybrid Adsorbent Subroto, Nadya Nursidah Pratiwi; Tarmidzi, Fadhil Muhammad; Wati, Ina; Armans, Velia Mulya
Indonesian Journal of Chemical Research Vol 10 No 1 (2022): Edition for May 2022
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2022.10-nad

Abstract

A high level of lead in the sediment will cause contamination of aquatic biota. Lead pollutants in water may be treated by an easy and common adsorption process. A combination of both environmentally friendly and renewable materials, low methoxy pectin (LMP), and guar gum as adsorbents can reduce the need of activated carbon which requires high temperatures in its synthesis process. LMP was prepared from high methoxy pectin using a demethylation process under alkaline conditions. LMP and guar gum are diluted in 1 M calcium chloride as a crosslinking agent. The degree of esterification was carried out to determine the demethylation process. Adsorption of lead was carried out with a lead concentration of 165 ppm in acidic conditions for 24 hours. Lead concentration was measured using AAS. Results show that the optimal pH for demethylation was 12. The ratio of 1:2 pectin-guar gum produces the strong beads related to more O-H bonds in guar gum that can be developed. pectin-guar gum beads can adsorb 63% of lead at pH 6 due to the development of hydro-complex metal ions under more basic conditions.
Perencanaan Pemerintah Dalam Peningkatan Produksi Dan Harga Kelapa Sawit Petani Di Desa Mumpa Pasca Pandemi Covid 19 Syahfitri, Triyana; Audina, Mila; Ferynaldo, Raymond; Nurbaiti, Nurbaiti; Wati, Ina
Jurnal Penelitian Dan Pengkajian Ilmiah Sosial Budaya Vol 2 No 2 (2023): Jurnal Penelitian Dan Pengkajian Ilmiah Sosial Budaya - JPPISB
Publisher : LPPM Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jppisb.v2i1.726

Abstract

The development of oil palm plantations has an important meaning to increase regional and national economic growth in terms of; creating added value, investment growth, output contributing to foreign exchange and even oil palm plantation activities have had positive or beneficial external influences on the surrounding area. The problem faced in this research is how the government plans to increase the production and price of farmer's palm oil in Mumpa Village after the Covid-19 pandemic and what are the inhibiting factors and supporting factors for government planning to increase the production and price of farmer's palm oil in Mumpa village after the Covid pandemic -19. The method used in this study is a qualitative method in which researchers conduct observations, interviews and discussions directly in Mumpa Village while carrying out Thematic KKN. From the results of the discussion, palm oil is a national strategic commodity because it has a long utilization chain so that there are many benefits that can be taken, including replacing the role of petroleum which is a non-renewable resource as fuel and produces various derivative products. which can be utilized which resulted in an increase in the processing industry for palm oil derivative products. The large number of these industries will result in a lot of employment and generate an increase in foreign exchange for the country so that the economy in Indonesia increases.
Co-Authors Armans, Velia Mulya Audina, Mila Fadhil Muhammad Tarmidzi Ferynaldo, Raymond Nurbaiti Nurbaiti Subroto, Nadya Nursidah Pratiwi Syahfitri, Triyana