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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Sains Teknologi dan Lingkungan (JSTL) Tekinfo | Scientific Journal of Industrial and Information Engineering Indonesian Journal of Chemistry Jurnal Biomedika Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Jurnal Pengabdian kepada Masyarakat Journal Of Human And Education (JAHE) Makara Journal of Science Jurnal Kimia dan Rekayasa Molekul: Jurnal Ilmiah Kimia
Yari Mukti Wibowo
Program Studi Analis Kimia, Fakultas Teknik, Universitas Setia Budi, Surakarta
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Determination of Chloride Ion (Cl-) Conditions In Dog Well Water In Kecamatan Kaliwungu, Kendal Using Mohr Argentometry Method: Penentuan Kadar Ion Klorida (Cl-) Pada Sampel Air Sumur Gali di Kecamatan Kaliwungu, Kendal Menggunakan Metode Argentometri Mohr Anggi Mukromin; Yari Mukti Wibowo
Jurnal Kimia dan Rekayasa Vol. 4 No. 1 (2023): Jurnal Kimia dan Rekayasa Edisi Juli 2023
Publisher : Program Studi S1 Teknik Kimia, Fakultas Teknik, Universitas Setia Budi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31001/jkireka.v4i1.61

Abstract

Coastal areas are areas that often experience difficulties in obtaining clean water. In this coastal area sea water intrusion often occurs, so that the chloride content in fresh water is high. Researchers wanted to determine the levels of chloride ions in samples of dug well water in the Kaliwungu District, Kendal Regency. This research was conducted using the Argentometry Mohr titration method. The sample population obtained is 6 from different points, where each sample has a coordinate point. Determination of the distance between the coordinates of each of the wells to the coastal area or ponds is taken from 4 directions, then the closest distance is taken. The research results obtained chloride levels from 6 well water samples S1, S2, S3, S4, S5, S6 in units of mg/L respectively: 74.28; 106.63; 102.15; 127.03; 112.60 and 72.62. The results of the study stated that the well water samples closest to the coast had the highest levels of chloride ions. This is possible because of the large amount of seawater seeping into the dug well water. Based on the Regulation of the Minister of Health of the Republic of Indonesia Number 492/Menkes/Per/IV/2010 the maximum limit for chloride ions for drinking water is 250 mg/L. The levels of the samples from the six wells obtained met the predetermined requirements, so it can be concluded that the 6 well water samples had good quality, when viewed from their chloride ion levels. AbstrakDaerah pesisir pantai merupakan salah satu daerah yang sering mengalami kesulitan untuk memperoleh air bersih. Pada daerah pesisir pantai ini sering terjadi intrusi air laut, sehingga kadar klorida dalam air tawarnya tinggi. Peneliti ingin menentukan kadar ion klorida pada sampel air sumur gali di daerah Kecamatan Kaliwungu Kabupaten Kendal. Penelitian ini dilakukan dengan menggunakan metode titrasi Argentometri Mohr. Populasi sampel yang didapatkan berjumlah 6 dari titik berbeda, dimana masing-masing sampel memiliki titik koordinat. Penentuan jarak antara titik koordinat dari masing-masing dari masing-masing sumur terhadap wilayah pesisir atau tambak diambil dari 4 arah, kemudian diambil jarak yang terdekat. Hasil penelitian diperoleh kadar klorida dari 6 sampel air sumur S1, S2, S3, S4, S5, S6 dalam satuan mg/L berturut-turut sebesar : 74,28; 106,63; 102,15; 127,03; 112,60 dan 72,62. Hasil penelitian menyatakan bahwa sampel air sumur yang paling dekat dengan pesisir pantai mempunyai kadar ion klorida paling besar. Hal ini dimungkinkan karena banyaknya air laut yang merembes masuk ke air sumur gali. Berdasarkan Peraturan Menteri Kesehatan Republik Indonesia Nomor 492/Menkes/Per/IV/2010 batasan paling banyak ion klorida untuk air minum sebesar 250 mg/L. Kadar sampel dari keenam sumur yang diperoleh memenuhi syarat yang telah ditetapkan, sehingga dapat disimpulkan bahwa 6 sampel air sumur mempunyai kualitas yang baik, jika dilihat dari kadar ion kloridanya.
Moringa Seed Powder Biocoagulant (Moringa oleifera) for Improving Laboratory Wastewater Quality Peni Pujiastuti; Yari Mukti Wibowo; Narimo Narimo
Molekul Vol 17 No 3 (2022)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2022.17.3.5461

Abstract

The purpose of the study was to examine the ability of 100 mesh size moringa seed powder as a biocoagulant in improving the quality of laboratory wastewater, in terms of parameters: color, TSS, Cu, Fe, COD, P-PO4, and antibacterial. The variable that changed was the concentration of Moringa seed powder solution of 0 mg/L, 40 mg/L, 80 mg/L, 120 mg/L, and 160 mg/L, with fast stirring of 150 rpm for 15 minutes and slow stirring of 50 rpm for 15 minutes. Analysis of test parameters was carried out using standardized methods of wastewater samples before and after the addition of biocoagulants. Characteristics of 100 mesh Moringa seed powder were that with the SEM-EDX test at 5000x magnification. While with the BET-BJH test it had a surface area of 14.519 m2/g, a total pore volume of 0.026 cm2/g, and an average pore size of 7.055. Moringa seed powder could improve the quality of laboratory wastewater and it had good effectiveness. Optimal TSS reduction was at a concentration of 80 % with effectiveness of 81.01 %. The reduction of COD and P-PO4 at a concentration of 160 % biocoagulants had an effectiveness of 96.36 % and 79.36 %. Whilst the decrease in heavy metal Cu was 67.7 %, Fe was 89.33 % and color was 52.96 % with the addition of 120 % biocoagulants. It had antibacterial properties of E-coli and Bacillus at the addition of 200 mg/L biocoagulant as well.
Komparasi Metode Titrimetri Dengan Spektrofotometri UV-Vis pada Analisis Chemical Oxygen Demand (COD) Output IPAL Domestik Berdasarkan Linieritas, Akurasi dan Presisi: Comparison Of Titrimetric With UV-Vis Spectrophotometry Methods For The Analysis Of Chemical Oxygen Demand (COD) Output Domestic IPAL Based On Linierity, Accuracy and Precision Ida Lestari; Peni Pujiastuti; Yari Mukti Wibowo
JURNAL SAINS TEKNOLOGI & LINGKUNGAN Vol. 9 No. 4 (2023): JURNAL SAINS TEKNOLOGI & LINGKUNGAN
Publisher : LPPM Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jstl.v9i4.416

Abstract

The method of a test must be evaluated and tested to ensure that the method is capable of producing valid data. So that validation needs to be done as a quality control that provides assurance that the measurements and results obtained are reliable. This study aims to determine the value and comparison of the values of linearity, accuracy, and precision of the titrimetric and spectrophotometric methods in COD analysis. Determination of the COD value for the titrimetric method was carried out by redox titration using a solution of Ferro Ammonium Sulphate (FAS). While the spectrophotometric method was carried out using UV-Vis spectrophotometry at a wavelength of 420 nm. The research results obtained a linear regression value for the titrimetric method of 0.9989, while the spectrophotometric method was 0.9991, this indicates that the linear regression value of the spectrophotometric method is better than the titrimetric method. The results of the accuracy analysis for the titrimetric method obtained a value of 111.48%, while for the spectrophotometric method it was 103.11%, this shows that the accuracy value of the spectrophotometric method is better than the titrimetric method. The precision analysis results for the titrimetric method obtained a value of 1.77%, while for the spectrophotometric method it was 1.55%, this shows that the spectrophotometric method has a better precision value than the titrimetric method. Based on the comparison of the results of statistical validation using the T-test, there was no significant difference in data between the titrimetric method and the spectrophotometric method.
Pengabdian Masyarakat Internasional Penguatan Ecowisata Potensi Desa Segorogunung, Kab. Karanganyar Setyawan, Didik; Herawati, Dewi Astuti; Siddiq, Faiz Rahman; Hariyanti, Widi; Pujiastuti, Peni; Suseno, Suseno; Wibowo, Yari Mukti; Anita Indrasari; Kresnadipayana, Dian; Rahmadina, Nadia; Muftiyanto, R. Taufiq Nur
Journal Of Human And Education (JAHE) Vol. 5 No. 1 (2025): Journal of Human And Education (JAHE)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jh.v5i1.2221

Abstract

Potensi Desa Segorogunung ini baik hasil pertanian maupun wisata yang berbasis alam diharapkan memberikan kontribusi pada pendapatan desa maupun masyarakatnya. Wisata yang mengembangkan ekowisata pada hakikatnya merupakan bentuk wisata yang bertanggungjawab terhadap keberlanjutan area wisata yang alami, memberi manfaat ekonomi kepada masyarakat sekitar dan mempertahankan kelestarian budava bagi masyarakat setempat. Potensi ekowisata Desa Segorogunung diperlukan integrasi yang dapat memberikan keuntungan kepada masyarakat. Terdapat 3 area kegiatan pengabdian masyarakat yang dilakukan, yaitu pengembangan potensi kebun teh untuk wisata, pemanfaatan pemasaran digital dalam menyampaikan informasi dan kegiatan di Bumi Perkemahan Desa Segorogunung, dan perlunya standarisasi proses bisnis pengelolaan UMKM Teh Mbok Murti. Hasil yang didapatkan dari kegiatan tersebut masyarakat mendapat kemanfaatan yang semakin berkembangnya pemanfaatan kebun teh, terinformasinya keberadaan Bumi Perkemahan Desa Segorogunung melalui berbagai media digital, dan terimplementasinya standarisasi proses bisnis UMKM Teh Mbok Murti.
Menyiapkan Masyarakat Siaga Covid-19 Melalui Pembuatan Hand Sanitizer Bahan Baku Alkohol Secara Mandiri Pujiastuti, Peni; Suseno, Suseno; Darmawan, Petrus; Mahayana, Argoto; Indrasari, Anita; Wibowo, Yari Mukti
Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 6, No 2 (2023): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/japhb.v6i2.4229

Abstract

Sampai saat ini wabah virus corona masih merajalela. Kasus warga yang terinfeksi terus meningkat, seperti di Colomadu Karanganyar. Semua warga masyarakat beresiko terinfeksi virus corona (Covid-19). Infeksi disebabkan virus corona menyerang saluran pernafasan, dimana seseorang dapat terinfeksi karena tertular dari penderita Covid-19. Virus Corona berbahaya, karena penularannya yang cepat dan lebih mudah dibandingkan wabah Severe Acute Respiratory Syndrome yang pernah melanda dunia. Pencegahan dan Mitigasi adalah merupakan kunci penerapan di seluruh pusat layanan kesehatan masyarakat.  Langkah-langkah pencegahan yang paling efektif di masyarakat adalah dengan mencegah penularan virus corona antara lain dengan penggunaan hand sanitizer. Diperlukan edukasi masyarakat agar mampu menyiapkan hand sanitizer sendiri, lebih hemat dan mandiri. Diharapkan dengan tersedianya hand sanitizer dirumah setiap warga dapat memutus rantai penyebaran virus corona di Colomadu Karanganyar.
Co-Authors Anggi Mukromin Anita Indrasari Bagus Ismail Adhi Wicaksana Darmawan, Petrus Depita Fajar Rohmawati Dewi Astuti Herawati Dian Kresnadipayana Elisabet Nani Ermawati Nurmushoimah Maghfiroh Feni Nilasari Gregorius Prima Indra Budianto, Gregorius Prima Indra Hariyanti, Widi Harno Dwi Pranowo Harno Dwi Pranowo Harno Dwi Pranowo Ida Lestari Mahayana, Argoto Mudasir Mudasir Mudasir Mudasir Mudasir, Muftiyanto, R. Taufiq Nur Narimo Narimo Peni Pujiastuti Peni Pujiastuti Peni Pujiastuti Rahmadina, Nadia Reslely Harjanti Rosleini Ria Putri Zendrato Setyawan, Didik Siddiq, Faiz Rahman Siti Aisiyah Suseno Suseno Suseno Suseno Vivin Nopiyanti