Article Per Year (5 Year)
p-Index From 2021 - 2026
5.909
P-Index
This Author published in this journals
All Journal Reaktor Jurnal Teknik Kimia Jurnal Fisika Unand Journal of Natural Sciences and Mathematics Research Konversi Jurnal Kimia Riset CHEESA: Chemical Engineering Research Articles International Journal of Economics, Business and Accounting Research (IJEBAR) Jurnal Inovasi Teknik Kimia ASEAN Journal of Community Engagement G-Tech : Jurnal Teknologi Terapan Nusantara Science and Technology Proceedings International Journal of Eco-Innovation in Science and Engineering (IJEISE) Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Pengbdian Teknik Mesin Journal Serambi Engineering (JSE) Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa JURNAL REKAYASA KIMIA & LINGKUNGAN
SRIE MULJANI
Program Studi Teknik Kimia, Fakultas Teknik & Sains, Universitas Pembangun Nasional “Veteran” Jawa Timur, Surabaya
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science 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

Published : 40 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 40 Documents
Search

 1   2   3   4 
Penerapan Pembangunan Berkelanjutan Melalui Perwujiudan Ecovillage di Desa Galengdowo Srie Muljani; Mu’tasim Billah; Farida Pulansari; Titi Susilowati
Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat Vol. 2 No. 6 (2022): November 2022 - Jurnal Altifani Penelitian dan Pengabdian kepada Masyarakat
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25008/altifani.v2i6.298

Abstract

Prioritas pembangunan desa berfokus pada upaya pencapaian Tujuan Pembangunan Berkelanjutan (TPB) atau SDGs. Untuk menerapkan TPB dengan mewujudkan Ecovillage di desa Galengdowo diperlukan pembenahan banyak sektor dan kegiatan sosialisasi. Sebagian besar mata pencaharian masyarakat Galengdowo adalah petenak sapi dan petani salak unggulan. Terjadinya cemaran sungai akibat pembuangan kotoran sapi dan menumpuknya limbah biogas di pekarangan rumah penduduk, selain menimbulkan aroma yang kurang sedap, rendahnya estetika, juga menimbulkan dampak penurunan kesehatan. Disisi lain terdapat juga timbunan limbah kulit dan biji salak di tempat wisata petik buah salak dan dibeberapa rumah petani salak. Selain produksi biogas dari kotoran sapi, maka limbah padat dari produksi biogas tersebut dapat diolah menjadi pupuk padat dan pupuk cair. Kegiatan pengabdian mayarakat di desa Galengdowo yang dilakukan ini meliputi pemurnian biogas, pembuatan pupuk organic dan produksi teh serta kopi biji salak sebagai upaya mewujudkan Galendowo sebagai ecovillage.  
Precipitated calcium oxide nanosize from limestone and blood clam shells Caecilia - Pujiastuti; Srie Muljani; Ketut Sumada
Journal of Natural Sciences and Mathematics Research Vol 9, No 1 (2023): June
Publisher : Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jnsmr.2023.9.1.13209

Abstract

Calcium oxide (CaO) is a product that is needed by various types of industries such as the pharmaceutical, chemical, agricultural and health industries. CaO is generally produced by the calcination method of CaCO3 materials such as calcium carbonate rocks or from various types of shells. The calcination method requires a large amount of energy because the operating temperature is above 1000 C and the resulting calcium oxide product is still micrometer size. This study developed nanosize precipitated CaO from two calcium sources, namely blood clam shells and limestone. For clam shells using hydrochloric acid as a solvent and sodium hydroxide as a precipitating agent, while for limestone using phosphoric acid as a solvent and potassium hydroxide as a precipitating agent. The effect of acidity (pH) and calcination temperature on the characteristics of the precipitated CaO was observed. The blood calm shell produces precipitated CaO 85-92 % with a particle size of 200-250 Nm and the limestone produces precipitated CaO 42-66% with a particle size of 250-300 Nm 
Synthesis and Modification of Nano-Precipitated Calcium Carbonate (PCC) with Addition of Ethylene Glycol Sani; Mega Rosilina; Mochamad Titus Maulana; A.R Yelvia Sunarti; Srie Muljani; Dwi Hery Astuti; Isni Utami
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 3 No. 1 (2022): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ZA fertilizer waste (Ammonium sulfate) is waste generated from the industrial process of producing ZA fertilizer. The waste contains very high calcium and has the potential to be used as a raw material in the manufacture of Precipitated Calcium Carbonate (PCC). PCC with certain qualities can be developed in the field of advanced materials, with size modification into nanoparticles. One method to produce nanoparticles is using the coprecipitation method, with the help of a polymer solution. This study aims to produce Nano-PCC by finding the best conditions of CaCl2: Ethylene Glycol mole ratio and stirring speed. Nano-PCC is synthesized by reacting fertilizer waste with HCl to form a CaCl2 solution. Then, the solution is mixed with ethylene glycol to prevent particle agglomeration so that the size obtained will be smaller. The mixture is then reacted with Na2CO3 to form precipitated calcium carbonate (PCC). In this study, the variables were the mole ratio of CaCl2: ethylene glycol (1:12, 1:14, 1:18, 1:20) and stirring speed (350, 500, 650, 800, and 950 rpm). Based on PSA analysis, the Nano-PCC obtained at the smallest CaCl2: ethylene glycol ratio 1:12, stirring speed 950 rpm was 51.83 nm. Based on Scherrer’s calculations with XRD, the particle size obtained was 48.25 nm. SEM analysis showed that the crystals formed were dominated by vaterite crystals, with a size range of 55.71-607.79 nm.
THE IMPACT OF ENVIRONMENT AND BEHAVIOR OF DAILY CATTLE BREEDERS ON CONSIDERATION OF INVESTORS IN INVESTING IN GALENGDOWO VILLAGE, JOMBANG J.E. Sutanto; Farida Pulansari; Srie Muljani; Sukirmayadi Sukirmayadi
International Journal of Economics, Business and Accounting Research (IJEBAR) Vol 6, No 3 (2022): IJEBAR, Vol. 6 Issue 3, September 2022
Publisher : LPPM ITB AAS INDONESIA (d.h STIE AAS Surakarta)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/ijebar.v6i3.5837

Abstract

The purpose of the study was to determine and analyze whether cow dung, environmental permits, and farmer behavior affect investors in investing in Galengdowo village. Design/Methodology/approach, the population in this study were all dairy farmers who had more than 5 dairy cows, while the number of samples used was 73 respondents. Data collection in this study was carried out by distributing research instruments using a Likert scale instrument and after the data was collected, data processing was carried out using the SPSS version 25 program. towards investors; (2) the environmental permit variable partially has a significant effect on investors, and (3) the breeder's behavior variable partially has a significant effect on investors. Based on the multiple linear regression equation, it can be explained as follows: First, the cow dung waste variable (X1) has the highest influence. Second, the farmer behavior variable (X3) has the lowest effect compared to the cow dung waste variable (X1) and the environmental permit variable (X2).
Pengolahan Limbah Yeast Mud Menjadi Pupuk Organik Padat Menggunakan Metode Composting Aerob Amelia Putri Kusherawati; Clareta Rahmawati Maudy; Ketut Sumada; Caecilia Pujiastuti; Srie Muljani
Jurnal Serambi Engineering Vol. 9 No. 3 (2024): Juli 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bioethanol is one of the alternative materials that can reduce dependence on non-renewable fuel oil. The process of making bioethanol produces by-products in the form of waste. Yeast mud is solid waste from the initial precipitation process of ethanol production. Yeast mud contains organic carbon of 39.33%, total nitrogen as nitrogen compounds of 1.76%, and a C/N ratio of 22. The organic carbon content contained in yeast mud exceeds the 2018 SNI value of a maximum of 32%. This study aims to determine the time needed to produce solid organic fertilizer in accordance with the Indonesian National Standard. The parameters used to determine the quality of solid organic fertilizer produced are C-Organic content, Nitrogen content, and C/N ratio. The method used in this research is aerobic composting with variations in the mass of yeast mud waste (1 kg; 2kg; 3 kg; 4 kg; and 5 kg) and variations in composting time (3; 4; 5; 6; 7 days), as well as an aeration rate of 1.5 l/min. The results showed that the C-Organic content that met the maximum SNI standard of 32% was obtained under the condition of a mass of yeast mud waste of 1 kg with a time of 5 days with a C-Organic content of 31.45% and a mass of yeast mud waste of 2 kg with a time of 7 days with a C-Organic content of 31.96%.
A Teknologi Pembuatan Pembersih Lantai Sereh untuk Menambah Kesejahteraan Kelompok Tani Kosagrha Lestari Surabaya Suprihatin; Susilowati, Titi; Muljani, Srie; Edahwati, Luluk; Sutiyono, Sutiyono
abdimesin Vol. 3 No. 2 (2023): Abdi-mesin
Publisher : UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/abdimesin.v3i2.53

Abstract

Pemanfaatan tanaman sereh wangi untuk dijadikan sebagai pembersih lantai organik sereh ramah lingkungan. Pembersih lantai sangat diperlukan dalam rumah tangga yang berfungsi menghilangkan bau tak sedap serta untuk membunuh bakteri yang menempel dilantai. Minyak Atsiri sereh wangi mempunyai bau yang menyegarkan dan juga sebagai antimikroba untuk membunuh bakteri. Pengabdian Masyarakat ini mempunyai tujuan untuk memberikan pengetahuan tentang pembuatan pembersih lantai organik sereh yang hasilnya bisa diterapkan untuk rumah tangga sendiri juga bisa berpeluang untuk berwirausaha sehingga akan menambah pendapatan keluarga
Sintesa dan Karakterisasi Nanopartikel Kalsium Oksida Dari Cangkang Telur Dengan Metode Presipitasi Anggelina, Efline; Noviardyanti, Fara Zabrina; Pujiastuti, Caecilia; Muljani, Srie; Sumada, Ketut
Jurnal Teknik Kimia Vol 18, No 2 (2024): Jurnal Teknik Kimia
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v18i2.4485

Abstract

Penelitian ini berfokus pada pengembangan metode pembuatan nanopartikel kalsium oksida dari cangkang telur. Cangkang telur mengandung kalsium karbonat (CaCO3) 98%. Cangkang telur dihaluskan berukuran 100 mesh. Setiap 50 gram cangkang telur direaksikan dengan larutan HCl konsentrasi 3N 250 ml. Filtrat larutan CaCl2 direaksikan dengan kalium oksida (KOH) berkonsentrasi 3N sesuai variabel pH (7,9,11 dan 13) lalu diaduk dengan kecepatan magnetic stirer 90 rpm selama waktu sesuai variabel waktu (30, 60, 90, 120 dan 150 menit) akan membentuk endapan Ca(OH)2. Endapan akan disaring lalu dikeringkan dengan oven bersuhu 100°C selama 15 menit. Endapan tersebut diproses dalam tungku pembakaran dengan suhu 700°C selama 3 jam untuk menghilangkan kandungan gas hidrogen (H2). Hasil sintesa kalsium oksida (CaO) kemudian diuji XRF dan SEM-EDX untuk mengetahui kondisi operasi terbaik dan kesesuaian karakteristik nanopartikel. Hasil uji XRF didapatkan senyawa kalsium oksida (CaO) berwarna putih pucat mengandung kalsium oksida (CaO) terbaik sebesar 93,3% diperoleh dari varibel pH 13 dan waktu pengadukan selama 90 menit. Hasil SEM-EDX menunjukkan sintesa nanopartikel kalsium oksida (CaO) sebesar rata-rata 200 mesh sesuai dengan Badan Standarisasi Nasional yaitu dibawah 100 mesh. DOI: https://doi.org/10.33005/jurnal_tekkim.v18i2.4485
THE EFFECT OF VARIATION IN THE NUMBER OF SPRAYS AND DISCHARGE ON THE TECHNOLOGY SPRAY FOR EVAPORATION Cahyo, Mei Syella Kurnia Putri; Moch Iqbal Darmawan; Srie Muljani
Jurnal Kimia Riset Vol. 9 No. 1 (2024): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v9i1.56390

Abstract

Spray technology is an innovative salt production process technology that is able to increase seawater salinity and accelerate the salt production process. This study aims to determine the effect of variations in the amount of spray and discharge in spray technology on increasing seawater salinity. The experimental method was carried out by varying the spray and water discharge amount in spray technology according to the variables. This research has been successfully carried out to increase the salinity of synthetic seawater where to increase from the initial seawater salinity of 2.5 °Be to 24 °Be. It takes 16 hours taken in 3 days using the number of sprays as much as 5 sprays with a seawater flow rate of 0.2424 m³/hour in an evaporation pond of 15í—7 m. The use of the spray method proved effective in accelerating the rate of increase in salinity of synthetic seawater, which was tested to increase the salinity of synthetic seawater from 2.5 °Be to 12 °Be with an evaporation time in traditional methods of 15 days to only 11 hours. This can also happen because the temperature, humidity and wind speed were relatively stable when the research took place.
TEKNOLOGI NOZZLE SPRAY UNTUK MEMPERCEPAT EVAPORASI AIR LAUT DALAM PRODUKSI GARAM KONVENSIONAL Verbiawan, Erza Anggara; Ramadhan, Mochamad Rafli; Sumada, Ketut; Muljani, Srie; Pujiastuti, Caecilia
Jurnal Teknik Kimia Vol 18, No 1 (2023): Jurnal Teknik Kimia
Publisher : Program Studi Teknik Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jurnal_tekkim.v18i1.4125

Abstract

Garam merupakan salah satu kebutuhan pokok manusia yang tidak bisa terhindarkan. Salah satunya di Indonesia yang kebutuhan akan garam rakyat/krosok terus mengalami peningkatan tiap tahunnya. Dalam pemenuhan kebutuhan garam nasional, kapasitas produksi garam tahunan di Indonesia sangat jauh dibawah kebutuhan garam nasional tiap tahunnya, sehingga Indonesia melakukan impor garam untuk memenuhi kebutuhan tersebut. Hal tersebut tentunya menjadi permasalahan baik dari segi ekonomi maupun proses produksi yang selama ini dilakukan di Indonesia dimana masih menggunakan metode konvensional /tradisional. Tujuan dari penelitian ini adalah untuk memberikan inovasi baru terkait teknologi proses produksi garam yakni dengan menggunakan nozzle spray untuk mempercepat evaporasi air laut untuk produksi garam, serta mengetahui pengaruh ukuran diameter nozzle dan faktor lain terhadap laju evaporasi air laut. Metode yang digunakan adalah melakukan pengukuran terhadap temperatur, humidity, kecepatan angin, dan volume air laut yang teruapkan untuk penentuan laju evaporasi. Hasil penelitian ini membuktikan bahwa diameter nozzle ataupun penggunaan teknologi nozzle spray ini berpengaruh pada kecepatan evaporasi air laut dimana didapatkan peningkatan laju evaporasi rata-rata sebesar 4.8 x 10-5 m3/m2/detik dengan penggunaan nozzle berdiameter 1 mm. Dengan demikian dapat disimpulkan bahwa teknologi nozzle spray mempercepat laju evaporasi air laut dalam produksi garam.  DOI : https://doi.org/10.33005/jurnal_tekkim.v18i1.4125
SINTESIS DAN KARAKTERISASI SELULOSA KRISTAL DARI BATANG TEMBAKAU Muljani, Srie; Candra, Adi; Faiqoh, Iklimatul
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.v17i2.3780

Abstract

Batang tembakau tergolong limbah yang berpotensi untuk dijadikan bahan baku selulosa kristal dikarenakan kandungan selulosanya yang cukup tinggi. Penelitian ini bertujuan untuk mengkarakterisasi selulosa kristal dari batang tembakau serta mengetahui kondisi terbaik dari sintesis selulosa kristal berdasarkan waktu bleaching serta konsentrasi asam sulfat. Proses sintesis selulosa kristal dilakukan dalam 3 rangkaian proses yakni proses delignifikasi, proses bleaching, dan proses hidrolisis asam. Proses delignifikasi dilakukan dengan larutan NaOH 12% dilanjutkan proses bleaching dengan larutan H2O2 2% dengan variasi waktu 1 jam ; 1,5 jam ; 2 jam ; 2,5 jam ; 3 jam. Analisa kadar selulosa dengan metode Chesson Datta menunjukkan kondisi terbaik terjadi pada waktu bleaching 1,5 jam dengan kadar selulosa 63,1554%. Proses hidrolisis asam menggunakan larutan H2SO4 dengan variasi konsentrasi 20% ; 30% ; 40% ; 50% ; 60%. Karakterisasi dilakukan dengan analisa FTIR dan SEM. Penelitian menunjukkan bahwa selulosa kristal belum mencapai ukuran nano. Konsentrasi asam sulfat terbaik dalam mereduksi ukuran selulosa adalah 40%. DOI : https://doi.org/10.33005/jurnal_tekkim.v17i2.3780
Co-Authors A.R Yelvia Sunarti Abdullah, Affan Zein Adelita Sidabutar Agustina, Meri Ajiz, Hendrix Abdul Amalia, Ayu Rizka Amelia Putri Kusherawati Amoi, Lely Anggelina, Efline Anggoro, Achmad Rahditya Viman Anhar, Farhan Auladana Putra AR Yelvia Sunarti Arianti, Rahma Dea Rerindra Astuti, Dwi Hery Bambang Wahyudi Bambang Wahyudi Wahyudi Caecilia - Pujiastuti Caecilia Pujiastuti Caecilia Pujiastuti Caecillia Pujiastuti Cahyo, Mei Syella Kurnia Putri Candra, Adi Clareta Rahmawati Maudy Damayanti, Savira Farizqy Darma, Apriandi Putra Diah Nur Fitri Midayoga Dwi Hery Astuti Dyah Suci Perwitasari Erliyanti, Nove Kartika Erwan Adi Saputro Faiqoh, Iklimatul Farida Pulansari Febriana, Adinda Dwi Heru Setyawan Indah Dwi Wahyuningsih Isni Utami ISNI UTAMI J.E. Sutanto Jawwad, Muhammad Abdus Salam JE Sutanto Kamil, Ihsan Ketut Sumada Kindriari Nurma Wahyusi Kusuma, Kurnia Arifiani L.Urip Widodo, Yohandrik Novel Karaman Luluk Edahwati Maharani, Eka Ferdinda Putri Ayu Matovanni, Maudy Pratiwi Novia Maulana, Mochamad Titus Mega Rosilina Mega Rosilina Mirwan, Mohammad Moch Iqbal Darmawan Mochamad Titus Maulana Mochamad Titus Maulana Mohammad Falahul Habibaini Nuruddin Mu’tasim Billah Nana Dyah Siswati, Anwar Zain and Mohammad Nicander, Priscillia stevanies Nofitasari, Luluk Novanto, Satria Agung Nove Kartika Noviardyanti, Fara Zabrina Nur Annisa Nur Hapsari Pamoedji, Yemima Natalia Eka Kristiyanti Pangestu, Titan Obby Pertiwi, Beta Cahaya Pradana, Alfian Rizki Prasetyo Hadi Prasetyo, Muhammad Dewa Pujiastuti, Caecilia Pujiastuti, Caecilia Pujiastuti, Caecilia Pujiastuti, Caecilia Pujiastuti, Caecilia - Putri, Alisyah Ananda Ramadhan, Mochamad Rafli Reva Edra Nugraha Rifaldi, Kornelius Rosilina, Mega S Suprihatin Sani Sani Sari, Amilia Putri Puspita Silviya Nur Ridha Sintha Soraya Santi Sri Redjeki Sukirmayadi Sukirmayadi Sunarti, A.R Yelvia Suprianti, Lilik Suprihatin Suryandari, Ade Sonya Susilowati sutiyono sutiyono Titi Susilowati Trianna, Nurul Widji Utami, Noni Esti Verbiawan, Erza Anggara Wahyu Hidayah Widiyastuti Widiyastuti Widyaningrum, Nilam Putri Wiraya, Wira Arta Wisnu Adi Prasojo Yulia S, Putri Arysanti