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All Journal Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Stannum : Jurnal Sains dan Terapan Kimia Dharma Pengabdian Perguruan Tinggi (DEPATI)
Fajar Indah Puspita Sari
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Synthesis Of Mg/Al Hydrotalsite-Magnetite As CN- Ion Adsorbent On Wastewater Tapioca Industry Maudi Aulia; Fajar Indah Puspita Sari; Ristika Oktavia Asriza
Stannum : Jurnal Sains dan Terapan Kimia Vol 3 No 2 (2021): Oktober 2021
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v3i2.2506

Abstract

Cyanide compounds contained in tapioca industrial wastewater are relatively high, so it is necessary to reduce cyanide levels. This study utilizes the hydrotalcite-magnetite ability to adsorption of CN- ions. The composite formation process is carried out by mixing the magnetite phase at the stage of hydrotalcite-magnetite synthesis. The characterization of X-Ray Diffraction (XRD) shows reflection of the magnetite peak of 2θ 21.42°; 30,28°; 33.40°;35.65° and 37°. While the peak of hydrotalocites at an angle of 11.66° ; 23,33° ; 34,80° ; 60,92° ; and 62.21°. This result is supported by ir spectra on hydrotalocytes shown by O-H group at wave number 3441 cm-1, O=C-O at wave numbers 1359 cm-1, M-O and M-OH at wave numbers 964 cm-1, 797 cm-1 and 673 cm-1. Fe-O and Fe-OH absorption from magnetites at wave numbers 892 cm-1, 798 cm-1 and 629 cm-1. 0.4 grams of hydrotalcite-magnetite at 30 minutes of stirring absorbed 0.0490 mg/L of cyanide from tapioca liquid waste solution. The value of adsorption capacity is 0.022 mg/g and the adsorption efficiency is 87.96%. The hydrotalcite-magnetite adsorption method is superior to aerob and anaerobic methods using bacteria in the tapioca industry.
Ekstrak Batang Pelawan (Tristaniopsis merguensis Griff.) sebagai Antibakteri pada Staphylococcus aureus dan Escherichia coli Genta Febri Kusuma; Robby Gus Mahardika; Fajar Indah Puspita Sari
Stannum : Jurnal Sains dan Terapan Kimia Vol 4 No 2 (2022): Oktober 2022
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v4i2.3063

Abstract

Currently, diseases caused by infection with pathogenic microorganisms are increasing, this is indicated by the increasing interest in antibacterial substances. This research was conducted on the stem of the pelawan plant (Tristaniopsis merguensis Griff.) with the aim of identifying the secondary metabolites contained in the extract of n-hexane, ethyl acetate, and methanol of the stem of pelawan which have the potential to have antibacterial activity. Determination of the profile of the compounds contained in the extract of pelawan stem using a qualitative phytochemical test. Antibacterial test using disc diffusion method. Phytochemical qualitative test showed positive results in the flavonoid and phenol groups. The results of the disc diffusion antibacterial test on the diameter of the inhibitory zone of the stem extract showed that the methanol extract of the stem against the S. aureus had the greatest inhibition against the bacteria S. aureus at a concentration of 10000 ppm with an average inhibitory power of 8.07 mm and against the bacteria E. coli at the concentration of 10000 ppm. concentration of 10000 ppm with an average inhibition of 8.19 mm.
The Effectiveness of Pandan Sea (Pandanus Tectorius) Cellulose Active Charcoal in Reducing BOD, COD, TSS Level’s in Liquid Waste Tapioca Dianti Aviliani; Fajar Indah Puspita Sari; Robby Gus Mahardika
Stannum : Jurnal Sains dan Terapan Kimia Vol 4 No 2 (2022): Oktober 2022
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v4i2.3326

Abstract

Tapioca liquid waste contains high organic substances and suspended solids. This research utilizes the cellulose activated charcoal of sea pandan leaves to adsorb the organic matter content and suspended solids. This study aims to determine the lignin and cellulose content of pandan sea leaves before and after delignification, determine characteristics, determine the optimum mass and optimum efficiency of tapioca wastewater adsorption. Analysis of lignin and cellulose content refers to the Chesson method with a decrease in lignin content of 11.5% to 5.4% as cellulose content increases from 65.1% to 83.6%. The results of the characteristics of water content 11.6% and ash content of 4.2%, GSA analysis showed a surface area of ​​12.6495 m2/g, a total pore volume of 0.0124607 cm3/g which included micropores and an average pore radius of 1.97015 nm. Characterization using FTIR showed cellulose functional groups such as O-H, C-H, CH2, C-O and lignin functional groups, namely aromatic CH. Adsorption was carried out with a mass variation of 1, 5 and 10 grams in 250 ml of tapioca liquid waste for 30 minutes. /L to 5.40 mg/L, TSS 875 mg/L to 9.03 mg/L and optimum efficiency at 10 gram mass with removal of COD 99.64%, BOD 99.81%, TSS 98.94%. The adsorption of cellulose activated charcoal from sea pandan leaves is superior to using microorganisms in tapioca wastewater at PT Sinar Batu Rusa Prima. Further modification is needed in the application of activated charcoal in the waste to produce a colorless filtrate.
PENELUSURAN RENDAHNYA TINGKAT VAKSIN DAN UPAYA MENINGKATKAN KETERCAPAIAN VAKSINASI COVID-19 DI DESA JADA BAHRIN, KABUPATEN BANGKA Fajar Indah Puspita Sari; Anisa Indriawati; Kamalia Layal; Salmi Salmi
Dharma Pengabdian Perguruan Tinggi (DEPATI) Vol 2 No 2 (2022): November 2022
Publisher : Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.14 KB) | DOI: 10.33019/depati.v2i2.3355

Abstract

Jada Bahrin village has an area of 56 km2, and consists of 3 hamlets. The boundaries of Jada Bahrin Village are, among others, in the north by Kimak Village, in the south by Balun Ijuk, in the west by Kemuja and in the east by Baturusa village. The majority of Jada Bahrin's livelihood is farming (80%). During the 2020-2021 pandemic, the Jada Bahrin village community was classified as having quite low awareness in the implementation of the Covid-19 Vaccination, until March 2022 the achievement rate of vaccine dose 1 was only 60% and dose 2 vaccine was only 40%. Seeing some of the existing problems, the team took several steps to help the community and village officials to overcome these problems. Some of the things that the service team did were collecting data on the number of people who had vaccinated and had not vaccinated, education was carried out through several points of view, namely from the point of view of medicine and science, education about hypertension, health consultation assistance and health screening. The search results from 84 communities showed that up to mid-July 2022, 15.5% of the people had not / did not vaccinate. 69.23% of them are not eligible for the vaccine because of illness.
The Effect of Temperature, Stirring, and Contact Time on Reducing Chemical Oxygen Demand (COD) Levels of Palm Oil Mill Effluent (POME) Using Cocoa Peels Adsorbent (Theobroma cacao L.) Firstin Rizki Annisa Hasibuan; Fajar Indah Puspita Sari; Occa Roanisca
Stannum : Jurnal Sains dan Terapan Kimia Vol 5 No 1 (2023): April 2023
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v5i1.3787

Abstract

Cocoa peels (Theobroma cacao L.) are one of the plantation wastes that haven’t been used optimally. The content of cocoa peels makes the peels potential to be used as an adsorbent to reduce COD levels of POME. POME is liquid waste from the processing palm oil industry. This study was aimed to determine the characteristics of the cocoa peels adsorbent and the effectiveness of using cocoa peels adsorbent in reducing COD levels of POME. The powder was activated using nitric acid to increase the surface area of the adsorbent. The cocoa peels adsorbent was further characterized to determination water and ash content, FTIR analysis, and SAA. Cocoa peels adsorbent contains 10.40% moisture and 4.08% ash. FTIR analysis showed the presence of groups O–H, C–H, C=C, C–O– C, C–O, C–NO2 on the adsorbent of cocoa peels. The surface area of the adsorbent cocoa peel increased after activation from 3.48071 m2/g to 3.93845 m2 /g. The method used to test the content COD of POME is closed reflux titrimetrically. Adsorpstion process used variation like temperature, stirring speed, and contact time. The best reduction was obtained at 30oC with a stirring speed of 600 rpm at 120 minutes contact time, with 76.19% removal percentage for COD.
PEMBERDAYAAN MASYARAKAT DALAM PEMANFAATAN POTENSI DESA SEBAGAI DESTINASI WISATA DI DESA BELILIK Ririn Amelia; Fajar Indah Puspita Sari; Revy Safitri
Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Vol 5 No 2 (2018): Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jpu.v5i2.741

Abstract

Desa Belilik merupakan desa terbesar di Kecamatan Namang dengan luas wilayahnya meliputi 4,12% dari total luas Kecamatan Namang. Desa Belilik belum memiliki wisata yang cukup dikenal di masyarakat dan tertinggal dari Desa Namang yang memiliki wisata Hutan Pelawan. Hal ini menunjukkan bahwa saat ini sebagian besar potensi wilayah Desa Belilik masih belum dikembangkan secara optimal. Hal ini lah yang menjadi dasar untuk melakukan kegiatan pengabdian dengan memberdayakan masyarakat Desa Belilik dalam pemanfaatan potensi desa sebagai destinasi wisata. Berdasarkan hasil survey, permasalahan di desa Belilik dapat digolongkan menjadi dua yaitu Sumber Daya Manusia (SDM) dan lingkungan. Permasalahan inilah yang menjadi acuan dalam merancang program kerja apa saja yang akan dilaksanakan dalam kegiatan pengabdian. Adapun metode yang dilakukan untuk pelaksanaan kegiatan pengabdian ini adalah melakukan survey lokasi, penyusunan program kerja, pembekalan mahasiswa sebagai bagian tim pengabdian, sosialisasi kegiatan pengabdian kepada masyarakat, pelaksanaan kegiatan dan melakukan promosi terhadap Desa Belilik. Kegiatan pengabdian di Desa Belilik dapat dikatakan berjalan sesuai dengan rencana dan mendapat respon positif dari masyarakat. Terbukti dari respon masyarakat yang rata-rata memberikan apresiasi puas terhadap kegiatan pengabdian. Kerjasama tim yang dilakukan saat kegiatan pengabdian sedikit demi sedikit mengikis sikap individualisme antar warga maupun internal tim pengabdian. Pengetahuan masyarakat pun bertambah, terutama mengenai kesadaran dan kepedulian terhadap lingkungan maupun potensi desa. Destinasi wisata di Desa Belilik kembali dibuka dengan adanya objek wisata Mahali Park hasil pemberdayaan masyarakat dalam pemanfaatan potensi desa
Co-Authors Anisa Indriawati Dianti Aviliani Firstin Rizki Annisa Hasibuan Genta Febri Kusuma Layal, Kamalia Maudi Aulia Revy Safitri Ririn Amelia Ristika Oktavia Asriza Roanisca, Occa Robby Gus Mahardika Salmi Salmi