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Mahayana, Argoto
Chemical Analyst Study Program, Faculty Of Engineering, Universitas Setia Budi, Surakarta
Religion Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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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.
Pemanfaatan Scrap Besi untuk Reduksi Krom Heksavalen Limbah Cair Industri Pelapisan Logam Sunardi, Sunardi; Mahayana, Argoto; Sumardiyono, Sumardiyono; Gunawan, Lucia Sincu; Hidayati, Nur; Soebiyanto, Soebiyanto; Dewantara, Mahardira; Afghohani, Afif
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 6 No. 3 (2025): Edisi Juli - September
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v6i3.6600

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk menerapkan hasil penelitian pemanfaatan limbah scrap besi sebagai agen pereduksi kromium heksavalen (Cr(VI)) dalam limbah cair industri pelapisan logam skala kecil. Lokasi kegiatan berada di industri pelapisan logam Gemilang Chrome, Jl. Raya Palur Km. 7,5 Solo, yang belum memiliki sistem pengolahan limbah cair berbahaya secara memadai. Metode yang digunakan meliputi survei lapangan, wawancara dengan pemilik dan operator industri, pengambilan dan analisis sampel limbah, pelatihan teknologi tepat guna, serta implementasi langsung teknologi reduksi Cr(VI) menggunakan scrap besi dalam skala sederhana. Hasil kegiatan menunjukkan bahwa scrap besi mampu mereduksi kadar Cr(VI) hingga 87,5% dalam kondisi optimum pH 3 dan waktu kontak 90 menit. Selain efisiensi teknis, terjadi peningkatan pengetahuan dan keterampilan mitra dalam pengelolaan limbah berbahaya secara mandiri dan murah. Temuan ini menunjukkan bahwa scrap besi tidak hanya berfungsi sebagai agen remediasi yang efektif, tetapi juga sebagai solusi aplikatif berbasis prinsip ekonomi sirkular yang relevan untuk diterapkan pada industri pelapisan logam berskala UMKM. Kegiatan ini sekaligus membuktikan bahwa hasil riset laboratorium dapat diadaptasikan dalam konteks pengabdian masyarakat yang nyata, berkelanjutan, dan berdaya guna.
PROGRAM KEMANDIRIAN MASYARAKAT (PKM) DI CV BINTANG JAYA SUKOHARJO Sunardi, Sunardi; Mahayana, Argoto; Budianto, Gregorius Prima Indra; Sumardiyono, Sumardiyono; Ifandari, Ifandari; Atmoko, Waluyo Budi; Hidayati, Nur; Soebiyanto, Soebiyanto
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol. 6 No. 1 (2024): BUDIMAS : Jurnal Pengabdian Masyarakat
Publisher : LPPM ITB AAS Indonesia Surakarta

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Abstract

Mitra dalam kegiatan Program Kemandiran Masyarakat adalah CV Bintang Jaya yang terletak di Jl. Nori 10B Ngepakan, Joho, Sukoharjo. Mitra adalah produsen instan kunyit dengan merek dagang SI PINTAR. Mitra memiliki satu keistimewaan yakni instan kunyit dengan 4 macam rasa. Produk memiliki manfaat, namun instan kunyit hasil produksi mitra belum cukup dikenal masyarakat. Proses produksi dilakukan dalam skala rumahan dimana mitra belum sepenuhnya menerapkan standar produksi berdasarkan kriteria Cara Produksi Pangan yang Baik – Industri Rumah Tangga Pangan (CPPB-IRTP). Masalah yang dihadapi mitra yaitu: 1) Alat produksi tidak higienis; dan 2) Belum mempunyai ijin PIRT. Solusi yang akan dilakukan dari kegiatan ini adalah: 1) intoduksi alat parut dan peras; 2) pengurusan perijinan P-IRT. Metode yang akan dilakukan untuk merealisasikan tujuan dari program pelaksanaan PKM yaitu melalui: 1) Pengadaan mesin parut dan peras yang terbuat dari stainless; 2) Pendampingan pengurusan perijinan P-IRT. Hasil yang diperoleh setelah kegiatan pengabdian terkait aspek produksi ialah adanya peningkatan pengetahuan pemilik dan karyawan tentang CPPB-IRTP dan perbaikan tempat produksi yang lebih bersih dan layak. Terkait aspek produksi, terdapat peningkatan jumlah produksi dan perolehan ijin P-IRT dari Dinas Kesehatan.
PERBERDAYAAN IBU-IBU PKK MELALUI KARAK TANPA BORAKS Mahayana, Argoto; Sunardi, Sunardi; Dzakwan, Muhammad; Hariyanti, Widi; Sugiyarmasto, Sugiyarmasto; Atmoko, Waluyo Budi
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol. 6 No. 1 (2024): BUDIMAS : Jurnal Pengabdian Masyarakat
Publisher : LPPM ITB AAS Indonesia Surakarta

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Abstract

The partners in the Community Service Programme activities are the mothers of RT 1 RW 8 Jumok Jaten. Partners are housewives who have been affected by the Covid 19 pandemic because most of them were laid off by the company. Partners have the opportunity to produce karak without borax. The problems faced by partners are: 1) Lack of knowledge of PKK mothers about the dangers of borax; 2) Limited knowledge and skills about making karak without borax; and 3) Limited knowledge and skills about food safety and packaging. The method that will be carried out to realise the objectives of the Community Service implementation programme is through: 1) Making karak without borax; 2) Financial management training; 3) Marketing management training. The results obtained by the partners were able to make karak without borax which has a compact texture, crispy, and savoury taste, making it safe for consumption.
The Effect of H2SO4 Concentration on the Yield and Purity of Zinc Sulfate in the Synthesis of Zinc Sulfate from Zinc Waste , Sunardi; , Sumardiyono; Mahayana, Argoto; Hidayati, Nur; , Soebiyanto; Dewantara, Mahardira; Afghohani, Afif
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Zinc waste is a type of waste that comes from the use or production of zinc metal. Zinc waste is widely used in the production of paint, ceramics, glass, lamps, and pesticides. Zinc waste is very dangerous if not properly processed/utilized. If disposed of in large quantities into waterways, zinc waste can cause environmental pollution. Zinc waste is actually needed in water, but only in very small amounts. If the zinc content in water exceeds the specified threshold, it will be dangerous and toxic to living organisms. Excess zinc waste will damage the aquatic and soil ecosystems, which will certainly also have an impact on the health of living creatures and pose health risks to humans, such as digestive disorders and damage to certain organs. To reduce the amount of zinc waste, it is necessary to synthesize zinc waste into zinc sulfate. The purpose of this study was to determine the effect of sulfuric acid concentration on the yield and purity of zinc sulfate from zinc waste. The synthesis process includes pre-treatment, which is carried out by reducing the size of the zinc waste, then soaking the zinc waste in hydrochloric acid (HCl) to dissolve the oxide layer contained in it, cleaning the zinc surface of crusts, and separating the zinc from its mixture. Then, the synthesis process is carried out using a sulfuric acid (H2SO4) solution with varying concentrations (20%, 30%, 35%, and 45%) with heating at a temperature of 75-80° C and stirring at a speed of 300-350 rpm. Filtration is then carried out, and the filtrate obtained is heated until the solution becomes saturated, followed by a crystallization process. It is cooled to room temperature, and zinc sulfate crystals are obtained. In this study, white zinc sulfate heptahydrate (ZnSO4.7H2O) was obtained using a 45% sulfuric acid (H2SO4) solution, yielding a weight of zinc sulfate heptahydrate (ZnSO4.7H2O) of 3.1729 grams, a ZnSO4.7H2O concentration of 52.80% and the purity level of ZnSO4.7H2O was 96.28%.
PENGEMBANGAN FARMASIPRENEUR TABLET TAMBAH DARAH BERBAHAN DASAR FERRO SULFAT DARI SCRAP BESI BENGKEL BUBUT UNTUK SISWA SMK Soebiyanto; Nur Hidayati; Lucia Sincu Gunawan; Muhammad Dzakwan; Ilham Kuncahyo; Ana Indriyati; Nicolay Wening Audrey; Sunardi; Argoto Mahayana; Bimo Putranto; Sumardiyono; Mahardira Dewantara; Afif Afghohani
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol. 7 No. 3 (2025): BUDIMAS : Jurnal Pengabdian Masyarakat
Publisher : LPPM ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/budimas.v7i3.18190

Abstract

The partner in this Community Service Program is the Mandala Bhakti Health Vocational School, Pharmacy Department, located at Jalan Singosari Utara II, Nusukan Village, Banjarsari District, Surakarta City. Iron deficiency is a common nutritional problem, especially among adolescents. Scrap iron waste from machine shops has the potential to be used as a source of ferrous sulfate for the manufacture of iron supplements. This activity aims to develop iron supplement tablets from ferrous sulfate synthesized from iron scrap, ensure their safety through heavy metal testing, and enhance pharmaceutical entrepreneurship knowledge (pharmaceutical entrepreneurship) among vocational high school students. A total of 20 vocational high school students were involved in training that covered ferrous sulfate synthesis, tablet formulation, and product marketing strategies. Evaluation was conducted through pre-tests and post-tests, as well as heavy metal contamination analysis (Pb, Cu, Cd). The results showed a significant increase in knowledge, with an average pre-test score of 70 and a post-test score of 100. Heavy metal analysis showed no contamination (Pb: 0 ppm, Cu: 0 ppm, Cd: 0 ppm), making the tablets safe for use. This activity proved effective in enhancing students' knowledge and skills, and demonstrated that industrial waste can be utilized to produce valuable pharmaceutical products. The program supports the development of research-based and environmentally friendly pharmaceutical entrepreneurship among the younger generation.
Environmentally Friendly Synthesis of Ferric Chloride Coagulant from Scrap Iron for the Reduction of ion ferro and Total Dissolved Solids Sumardiyono; Sunardi; Argoto Mahayana; Nur Hidayati; Soebiyanto; Mahardira Dewantoro; Afif Afghohani
Jurnal Serambi Engineering Vol. 11 No. 3 (2026): Juli 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

The decline in groundwater quality, particularly in terms of TDS and Fe²⁺ levels, is a major concern in clean water supply. This study aims to synthesize and evaluate the effectiveness of FeCl₃ coagulant synthesized from scrap iron waste from a lathe workshop in reducing Total Dissolved Solids (TDS) and Fe²⁺ levels in borehole water. FeCl₃ was synthesized by reacting scrap iron waste with a 32% HCl solution. Water samples were tested for TDS and Fe²⁺ levels before and after treatment using gravimetric and UV-Vis spectrophotometric methods. The FeCl₃ coagulant doses used were 0.1%, 0.2%, and 0.3%. The results showed that the 0.3% dose provided the highest effectiveness in reducing Fe²⁺ levels by 80.10%, while the reduction in TDS reached 36.05% at the same dose. All doses successfully reduced Fe²⁺ levels to below the threshold set by Ministry of Health Regulation No. 2 of 2023 (<0.2 mg/l). This study demonstrates that FeCl₃ coagulant derived from iron waste is effective and has the potential to serve as an economical and environmentally friendly alternative for water treatment.
Co-Authors , Soebiyanto , Sumardiyono , Sunardi Afif Afghohani Afif Afghohani Afif Afghohani, Afif Agustin Puspitasari Alfiana, Ina Ana Indriyati Anita Indrasari Attasya Putri Aji Bimo Putranto Darmawan, Petrus Dewi Astuti Herawati Dzakwan, Muhammad Fakhrizal Falah Fransisca Sara Maranatha Gregorius Prima Indra Budianto Gregorius Prima Indra Budianto, Gregorius Prima Indra Gunawan, Lucia Sincu Hafizah, Dila Auli Hariyanti, Widi Ifandari Ifandari Ilham Kuncahyo Ilham Kuncahyo, Ilham Iswandi Iswandi Lucia Sincu Gunawan Mahardira Dewantara Mardiyono Mardiyono Mardiyono Muhammad Dzakwan Muhammad Dzakwan Muhammad Dzakwan Muhammad Dzakwan Nicolay Wening Audrey Nony Puspawati Nur Hidayati Nur Hidayati Nur Hidayati Nur Hidayati Peni Pujiastuti Petrus Darmawan Prasasti, Anin Putri, Hana Maylinda Sih Jayaning Ratri Soebiyanto Soebiyanto Soebiyanto Soebiyanto Soebiyanto Soebiyanto, Soebiyanto Sugiyarmasto Sugiyarmasto Sugiyarmasto Sugiyarmasto Sugiyarmasto Sugiyarmasto, Sugiyarmasto Sumardiyono Sumardiyono Sumardiyono Sumardiyono Sumardiyono Sumardiyono Sumardiyono Sumardiyono Sunardi Sunardi Sunardi Sunardi Sunardi Sunardi Suseno Suseno Suseno Suseno Waluyo Budi Atmoko Waluyo Budi Atmoko, Waluyo Budi Widi Hariyanti Widi Hariyanti Yari Mukti Wibowo