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All Journal Alchemy : Journal of Chemistry Jurnal Teknik Kimia Jurnal Fisika Unand Journal of Natural Sciences and Mathematics Research SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Inovasi Teknik Kimia PRIMA: Journal of Community Empowering and Services ASEAN Journal of Chemical Engineering Nusantara Science and Technology Proceedings International Journal of Eco-Innovation in Science and Engineering (IJEISE) Advance Sustainable Science, Engineering and Technology (ASSET) DedikasiMU: Journal of Community Service Jurnal Pengbdian Teknik Mesin COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Pengabdian Pelitabangsa Dharma Pengabdian Perguruan Tinggi (DEPATI) Journal Serambi Engineering (JSE) Environation (Environmental Engineering Journal of Community Dedication)
Kindriari Nurma Wahyusi
Program Studi Teknik Kimia, Universitas Pembangunan Nasional Veteran, Jawa Timur
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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The Effect of Resin and NH4OH Addition in The Making of Ammonium Silica Fertilizer from Geothermal Sludge Wahyusi, Kindriari Nurma; Nandini, Atika; Utami, Lucky Indrati; Siswanto; Utami, Isni; Mardhiyah, Nurul; Nofita, Dian
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 2 No. 1 (2021): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v2i01.29

Abstract

Geothermal sludge is a waste product from geothermal where it contains SiO2 which can be used as fertilizer. In this study, the making of silica ammonium fertilizer was carried out by taking salicy acid from geothermal sludge by extracting and adding resin which was then modified with NH4OH addition. Extraction was done using 1000 ml of KOH 1 N to dissolve 60 grams of Geothermal Sludge. Resins are added with variations in resin weight, namely, 5, 10, 20, 30, and 40 grams. NH4OH was added with variations in concentrations namely 3, 6, 9, 12 and 15% with a ratio of filtrate and NH4OH solution of 1: 1. The resulting ammonium silica inorganic liquid fertilizer products were analyzed for free silica and ammonia levels. The results of this study indicate that the levels of free silica and ammonia are influenced by the weight of the resin used and the concentration of ammonium hydroxide mixed. From the results of the research, it was found that inorganic silica liquid fertilizer with the highest SiO2 content in ammonium silica liquid fertilizer occurred when adding 20 grams of resin with the addition of NH4OH with a concentration of 15% which was 1,831.87 mg / L while the highest NH3 content in fertilizer liquid ammonium silica occurs when adding 40 grams of resin with the addition of NH4OH with a concentration of 15% which is equal to 252,312.80 mg / L.
Kinetic models of candle shell alkaline hydrolysis in obtaining oxalic acid Siswanto; Wahyusi, Kindriari Nurma; Panjaitan, Renova; Nurmawati, Ardika; Najakha, Ellen Oktavia Hanim
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 1 (2022): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v3i01.41

Abstract

The kinetic reaction of alkaline hydrolysis of candlenut shells to produce oxalic acid was investigated. It was performed for the non-catalyzed solid-liquid heterogeneous reaction in a range time of 30 to 90 minutes and temperature of 60oC to 90oC. This study showed that the reaction fitted the pseudo-first-order model, confirmed from the determinant coefficient value of 0.9182 to 0.9751, and the kinetic constant, evaluated using Arrhenius' law, was k= 0.034751 e^(-140.23⁄T). The rate control mechanism based on the shrinking core model was diffusion control, validated from determinant coefficient near one, from 0.9246 to 0.9766.
The Effect of Velocity Gradient and Camp Number on Solids Removal using Bio-Coagulant from Corbula faba Hinds Shells Nurmawati, Ardika; Wahyusi, Kindriari Nurma; Dewati, Retno; Hilmy, Jauhar
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 2 (2022): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v3i02.52

Abstract

process in water helps reduce solid content in water. The coagulant destabilizes water pollutants and helps flocs formation with the coagulation process. This paper studies the performance of chitosan bio-coagulant produced from Corbula faba Hinds shells. The velocity gradient and the Camp number of solids removal were also evaluated. The velocity and period of rapid mixing varied from 110 to 150 rpm, and the velocity gradient (G) was 181.2 to 288.5 s-1. The mixing period also ranged from 1 to 5 minutes. The highest TSS and TDS removal resulted in 140 rpm or 260.2 s-1 and 4 minutes of mixing. The residual TSS and TDS decreased with the increase of Camp Number until reaching a point and increased again afterward.
Synthesis of Hydrosiapatite from Muscle Shell Waste Using The Precipitation Method Puspitawati, Ika Nawang; Tauhid, Aziz Hafizh; M.N.K, Abdullah Tsani; Utami, Lucky Indrati; Wahyusi, Kindriari Nurma
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 2 (2022): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v3i02.72

Abstract

Hydroxyapatite is a calcium phosphate compound that is the main inorganic component of bones and teeth. Hydroxyapatite has a main role in the medical world because of its identical chemical properties and structure to human bone. Kupang shells have a high CaCO3 content of 95-99% by weight. So this concurrence, the mussel shells are to be used as good as an ingredient for making Hydroxyapatite. The variables used in this research are Temperature of the Furnace and Phosphoric Acid Concentration, which were 700ºC, 750 ºC, 800 ºC, 850 ºC, 900 ºC and Phosphate Acid Concentrations 0.4M, 0.6M, 0.8M, 1M, and 1.2M. The product results were tested with XRD analysis to determine the crystal structure contained in the product and the level of Hydroxyapatite in the product. The best research results in this study at a temperature of 900ºC at a concentration of 1.2M phosphoric acid with a Hydroxyapatite content of 100% with lattice parameters an (Aº)=b (Aº) = 9..422, c (Aº)=6.8835, and gamma = 120º.
HIDROLISIS ASAM α-SELULOSA PADA IMPERATA CYLINDRICA L DAN KARAKTERISASI MIKROKRISTALIN SELULOSA Sutejo, Andree Budihardjo; Hasugian, Firman Hasiholan; Utami, Lucky Indrati; Wahyusi, Kindriari Nurma
Jurnal Teknik Kimia Vol 17, No 2 (2023): Jurnal Teknik Kimia
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v17i2.3787

Abstract

Indonesia merupakan negara yang memiliki banyak hutan tropis, total luas kawasan hutan di seluruh Indonesia adalah 120 juta hektar. Pada lahan tersebut tentunya tumbuh subur gulma. Alang-alang (Imperata cylindrica L.) merupakan gulma yang dapat tumbuh di berbagai tanah hutan di Indonesia, kandungannya terdiri dari α-selulosa sebesar 40,22%, kadar holoselulosa sebesar 59,62% dan kadar lignin 31,29%. Penelitian ini dilakukan untuk mencari pengaruh konsentrasi dari HCl dan waktu pemasakan terhadap pembuatan mikrokristalin selulosa. Mencari kondisi optimal terhadap karakteristik mikrokristalin selulosa yang sesuai dengan ketentuan SNI yang berlaku. Proses pembuatan mikrokristalin selulosa menggunakan beberapa metode, yaitu pre-hidrolisis, delignifikasi, bleaching, dan hidrolisis menggunakan HCl. Dari penelitian yang telah dilakukan, diperoleh hasil mikrokristalin dengan rendemen tertinggi diperoleh pada sampel dengan hidrolisis pada konsentrasi asam klorida sebesar 1,5N, dengan waktu pemanasan 30 menit, dan rendemen mikrokristalin sebesar 74,11%, warna putih, dan ber-Ph netral. Dari hasil tersebut, maka dapat disimpulkan bahwa mikrokristalin yang dihidrolisis dengan menggunakan asam klorida sebesar 1,5N sudah sesuai dengan SNI yang berlaku. Dengan indikasi tidak dapat larut dalam air, kadar alcohol sebesar 95%, maupun asam lemah. Susut pengeringan sebesar 0,0871%. Ukuran rata-rata mikrokristalin yang didapatkan saat penelitian yaitu sebesar 26,62 µm. mikrokristalin merupakan selulosa dengan ukuran berkisar antara 2,94 hingga 117,6 µm. DOI : https://doi.org/10.33005/jurnal_tekkim.v17i2.3787
SINTESIS SILIKA XEROGEL DARI SABUT KELAPA DENGAN METODE SOL-GEL Lestari, Yuniar Dwi; Rahayuningtyas, Mia Tri; Utami, Lucky Indrati; Wahyusi, Kindriari Nurma
Jurnal Teknik Kimia Vol 17, No 2 (2023): Jurnal Teknik Kimia
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v17i2.3785

Abstract

Sabut kelapa merupakan bagian dari tanaman kelapa yang diketahui memiliki kandungan silika sekitar 69% yang dapat dimanfaatkan sebagai bahan baku pembuatan silika xerogel. Silika dengan rumus kimia SiO2 banyak digunakan di industri maupun di kehidupan sehari – hari. Penelitian ini bertujuan untuk menentukan konsentrasi pelarut dan waktu aging terbaik dalam sintesis silika xerogel dari sabut kelapa dengan metode sol-gel. Dimulai dengan mengabukan sabut kelapa dalam furnace pada suhu 600oC selama 2 jam. Kemudian untuk membuat sol, abu sabut kelapa diekstraksi menggunakan pelarut NaOH dengan variasi konsentrasi 1,5; 2; 2,5; 3; 3,5 N pada suhu 100oC selama 1 jam. Sol larutan natrium silikat diasidifikasi menggunakan HCl 1N hingga terbentuk gel pada pH 7. Gel yang terbentuk di-aging selama variasi waktu 12; 15; 18; 21; 24 jam, lalu dikeringkan hingga membentuk xerogel. Hasil sintesis berupa silika xerogel berwarna putih dan dikarakterisasi menggunakan FT-IR, XRD dan SAA. Hasil analisa FTIR menunjukkan silika xerogel mengandung gugus fungsi silanol dan siloksan dan analisa XRD menunjukkan silika memiliki struktur amorf. Kondisi terbaik yang didapatkan untuk sintesis silika yaitu pada waktu aging 18 jam yang menghasilkan luas permukaan paling besar sebesar 414,046 cm-1 , dan pada konsenentrasi pelarut NaOH 3,5N dengan yield terbesar sebesar 90,39%. DOI : https://doi.org/10.33005/jurnal_tekkim.v17i2.3785
Bioethanol Generation Through the Fermentation Process of Pineapple and Black Grape Utilizing Saccharomyces cerevisiae and Saccharomyces bayanus Ika Nawang Puspitawati; Sintha Soraya Santi; Kindriari Nurma Wahyusi; Sani
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3609

Abstract

Bioethanol is an alcohol molecule that is derived through the process of fermentation using microorganisms. Fermentation is a biological process in which microbes metabolize fermentable sugars as a source of nourishment, resulting in the production of ethyl alcohol and various other byproducts. These microbes commonly metabolize 6-carbon carbohydrates, with glucose being one of the most prevalent examples. Hence, biomass materials rich in glucose or glucose precursors are the most readily convertible to bioethanol. The examination of bioethanols employing Saccharomyces bayanus demonstrated notable disparities in the obtained alcohol concentration. The utilization of Saccharomyces bayanus yeast, in the absence of sugar supplementation, for the conversion of grape into bioethanol, yielded a modest alcohol concentration of merely 14%. In the context of bioethanol production, pineapple was utilized as a substrate, wherein 4 grams of Saccharomyces bayanus yeast and an additional 70 grams of sugar were introduced as a nutritional supply to support yeast growth and metabolism. The present fermentation procedure resulted in an alcohol concentration of around 21%.
Biosintesis Nanopartikel ZnO Menggunakan Ekstrak Daun Tanaman Jagung (Zea Mays L.) Adeningrum, Della Arista; Rosa, Aulia; Wahyusi, Kindriari Nurma; Yogaswara, Rachmad Ramadhan
Jurnal Fisika Unand Vol 14 No 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.2.160-166.2025

Abstract

ZnO nanoparticles can be synthesized using the biosynthesis method using corn plant leaf extract (Zea Mays L.) as a bioreductant. The aim of this research is to examine the effect of variations in Zinc Nitrate Hexahydrate precursor concentration and calcination temperature on the yield, as well as the characterization of ZnO nanoparticles. Corn plant leaves are extracted to obtain flavonoid compounds. The resulting extract is mixed with the precursor solution then calcined to obtain ZnO nanoparticles.  The highest yield was produced in a sample with a precursor concentration of 0.1M with a calcination temperature of 300˚ C of 22.6082%. SEM-EDX results on samples with a precursor concentration of 0.3 M and a calcination temperature of 700˚C show various particle morphologies and sizes of ZnO nanoparticles, namely 91 nm; 97 nm; 109 nm; 435nm; and 973 nm, and the composition of ZnO nanoparticles consists of 76.43% Zn atomic weight and 23.57% O ​​atomic weight. at a calcination temperature of 700˚ C shows a pure ZnO sample with an element composition of 80.3% Zn atomic weight and 19.7% O atomic weight. The size of the crystal diameter for XRD analysis on samples with a precursor concentration of 0.3M with calcination temperatures of 300 ˚C and 700˚ C were 40.8564 nm and 31.7203 nm, respectively. Both samples have the same crystal system, namely hexagonal zincite.
EKSTRAKSI SENYAWA FLAVONOID DARI KULIT ARI BUAH DELIMA (PUNICA GRANATUM L.) Nilam Sekar Ningsih; Atika Lailatul Rachmadani; Kindriari Nurma Wahyusi
Jurnal Inovasi Teknik Kimia Vol. 10 No. 1 (2025)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v10i1.12547

Abstract

Flavonoid adalah salah satu senyawa metabolit sekunder yang penting yang terdapat pada tumbuhan yang merupakan bagian dari turunan 2-phenyl-benzyl- γ-pyrone. Flavonoid memiliki peran penting dalam tumbuhan yaitu memberikan warna, rasa pada biji, bunga dan buah serta dapat digunakan sebagai antimikroba dan perlindungan dari paparan sinar ultra violet matahari. Salah satu sumber flavonoid adalah buah delima. Buah delima mengandung 0,2 – 1% dari berat buah delima yang didalamnya terdapat 30% terkonsentrasi berada pada bagian kulit. Tujuan dari penelitian ini adalah untuk mengkaji kecepatan pengadukan dan waktu ekstraksi terhadap kandungan flavonoid dari kulit ari buah delima (Punica granatum). Proses ekstraksi flavonoid dapat dilakukan dengan menggunakan pelarut aeston 80% dengan metode pengadukan. Metode tersebut dapat meningkatkan perpindahan massa dari bahan ke dalam pelarut. Dalam proses ekstraksi waktu ekstraksi memiliki pengaruh terhadap efektivitas ekstraksi. Waktu yang terbatas dapat menghasilkan ekstraksi yang kurang optimal, sementara waktu yang berlebihan bisa memengaruhi hasil ekstraksi dengan menyebabkan potensi kerusakan pada sampel. Diperoleh hasil ekstraksi flavonid terbaik berada pada kecepatan pengadukan sebesar 500 rpm dan pada waktu ekstraksi selama 180 menit dengan kandungan flavonoid yang terekstraksi sebesar 0,7575%
SOSIALISASI DAN IDENTIFIKASI BAHAN HALAL DI UD SOFIA COOKIES SURABAYA Hadi Munarko; Achmad Wahyu Hidayat; Jariyah; Sri Winarti; Kindriari Nurma Wahyusi
Environmental Engineering Journal of Community Dedication Vol. 2 No. 2 (2023): Jurnal Environation
Publisher : Teknik Lingkungan Universitas Pembangunan Nasional "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/environation.v2i2.5

Abstract

Pangan halal didefinisikan sebagai syarat utama untuk mengonsumsi produk pangan bagi konsumen muslim. Pangan halal merupakan pangan yang tidak memiliki kandungan unsur atau bahan yang haram, baik dari bahan baku pangan, bahan bantu, dan bahan penolong lain. Salah satu cara untuk memastikan pangan halal adalah dengan memiliki sertifikat halal pada suatu produk. UD Sofia Cookies merupakan UKM di Surabaya yang bergerak di bidang pangan dengan memproduksi aneka jenis cookies. UD Sofia Cookies memiliki kendala belum memiliki sertifikat halal. Dalam proses pendaftaran sertifikasi halal, diperlukan pengetahuan tentang identifikasi bahan yang termasuk dalam proses produksi. Oleh karena itu, dilakukan sosialisasi dan identifikasi bahan halal di UD Sofia Cookies. Metode yang dilakukan adalah penyuluhan tentang pentingnya dan identifikasi bahan. Hasil dari penyuluhan adalah karyawan UD Sofia Cookies telah mendapatkan informasi tentang pentingnya identifikasi bahan halal dan pada tahap pendampingan identifikasi bahan dihasilkan 38 bahan telah bersertifikat halal dan 10 bahan lainnya termasuk kategori positive list.
Co-Authors Abdul Rachman Wirayudha Abdullah Tsani M.N.K Achmad Aris Syahrul Ramadhan Achmad Wahyu Hidayat Adeningrum, Della Arista Adiyani Parahita Lestari Anggraini, Garin Rifdah Annisa Bella AR Yelvia Sunarti Ardiansyah, Feri Ardika Nurmawati Ardika Nurmawati Ardika Nurmawati, Ardika Astari, Rifky Zulindah Astuti, Dwi Hery Atika Lailatul Rachmadani Aziz Hafizh Tauhid Caecilia Pujiastuti Cestyadinda, Ken Ratri Cintaka Natanaelli Cita Risma Anggi Kurnia Rani Dian Nofita Disty Nur Rohmah Djarwatiningsih Djarwatiningsih Dyah Suci Perwitasari Ellen Oktavia Hanim Najakha Erwan Adi Saputro Euis Nurul Hidayah Faisal Amri Sholahuddin Hadi Munarko Hadi Munarko Hakam, Muhammad Hasugian, Firman Hasiholan Hidayatullah, Muhammad Rezky Hilmy, Jauhar Ian Yusuf Syaputra Ika Nawang Puspitawati Imroatul Mufidah Indah Fitriana Solichah ISNI UTAMI Jamhari Jamhari Jariyah Jariyah Jariyah Jariyah Jauhar Hilmy Juhariyah Juhariyah Ketut Sumada Kusuma Wardhani Mas’udah Lestari, Yuniar Dwi Lucky Indrati Utami Lucky Indrati Utami M.N.K, Abdullah Tsani Mardhiyah, Nurul Marisa Kusuma Wardani Marsela, Syafitri Mei Syella Kurnia Putri Cahyo Moenandar, Siswanto Mohammad Iqbal Muhammad Hakam Mu’tassim Billah Nailul Hasan Najakha, Ellen Oktavia Hanim Nandini , Atika Nandini, Atika Natanaelli, Cintaka Nikmah, Shokhibatul Nilam Sekar Ningsih Nisa', Syadzadhiya Qothrunada Zakiyayasin Nofita, Dian Novel Karaman Novembrianto, Rizka Nur , Shiva Eric Zulfikar Nur Aini Fauziyah Nurul Mardhiyah Okik Hendriyanto Cahyonugroho Panjaitan, Renova Pardi Sampe Tola Perdana, Dean Pitaloka, Nidya Purwadi MP. Ir Q Z N, Syadzadhiya Rahayuningtyas, Mia Tri Rahmasari, Shofia Dwi Fitri Ratna Yulistiani Renova Panjaitan Renova Panjaitan Renova Panjaitan Retno Dewati Retno dewati Reva Edra Nugraha Rosa, Aulia S Suprihatin Salma Putri Sekarningrum Sandy Buana Putra Sani Siahaan, Joshua Theo Anugerah Sintha Soraya Santi Siswanto Siswanto Siswanto Siswanto Moenandar Sri Winarti SRIE MULJANI Susilowati Susilowati Sutejo, Andree Budihardjo Syaputra, Ian Yusuf Tabitha Intana Tandepadang Tahan Simamora Rizaldi Tahan Simamora Rizaldi Tauhid, Aziz Hafizh Triadira, Aurriel Sekar Ummi Muashomah Utami, Lucky Indrati Utami, Lucky Intrati Utari, Yulanda Kartika Vira Seviani Dewantri Wafiyah, Kholilah Wahyudi Egar Megantoro Saputro Wibisono, Dimas Aryo Bramantyo Wihandhita, Wigig Wilya VP, Robet Yogaswara, Rachmad Ramadhan Yuliyatin Zaen