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All Journal Jurnal Teknik Kimia Seminar Nasional Teknik Kimia Kejuangan Jurnal IPTEK Konversi INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Journal of Research and Technology Tibuana : Journal of Applied Industrial Engineering JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Prosiding Seminar Nasional Sains dan Teknologi Terapan Ensiklopedia Education Review Jurnal Teknik Kimia Indonesia Journal of Mechanical Engineering, Science, and Innovation Jurnal Teknologi Lingkungan Lahan Basah Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Jurnal Pengabdian Masyarakat dan aplikasi Teknologi International Journal of Educational Insights and Innovations (IJEDINS) Dinamika Kerajinan dan Batik: Majalah Ilmiah
Erlinda Ningsih, Erlinda
LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)
Arts Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

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Removal of COD and Color Concentration in Batik Wastewater Using Electrofenton Niam, Achmad Chusnun; Mirzayanti, Yustia Wulandari; Fardiansyah, Muhammad Edo; Ningsih, Erlinda
Journal of Research and Technology Vol. 9 No. 2 (2023): JRT Volume 9 No 2 Des 2023
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v9i2.1040

Abstract

The effluent discharged from the batik textile industry often contains azo compounds and organic contaminants. One method employed to address these pollutants is the Electrofenton (EF) technique. This study aims to assess the effectiveness of electrofenton in reducing both color content and COD (Chemical Oxygen Demand) in batik dyeing effluent. The Electrofenton process was conducted in batch mode, varying electrode distances at 4 cm and 6 cm, H2O2:FeSO4 molarity ratios of (10:0.05) and (10:0.1), and electric voltage strengths at 6 volts and 8 volts. The research revealed that employing an electric voltage of 8 volts, an electrode distance of 4 cm, a contact time of 120 minutes, and a Fenton dosage molarity of 10:0.05 M resulted in a remarkable removal efficiency of 97.8% with a final concentration of 103 mg/L for color content. Additionally, for COD, employing the same parameters led to a removal effectiveness of 90.1%, with a final concentration of 730 PtCo. The impact of Fenton dosage on COD removal was statistically analyzed using the t-test. The computed t-value of 3.444 surpassed the tabulated t-value of 2.776, indicating a significant influence of Fenton dosage on COD removal.
ELEKTROKOAGULASI LIMBAH INDUSTRI SARUNG TENUN DENGAN ELEKTRODA AL-Zn DISUSUN SERI Ningsih, Erlinda; Mirzayanti, Yustia Wulandari; Ni'am, Achmad Chusnun
Dinamika Kerajinan dan Batik: Majalah Ilmiah Vol. 39 No. 1 (2022): DINAMIKA KERAJINAN DAN BATIK : MAJALAH ILMIAH
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Industri Kerajinan dan Batik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22322/dkb.v39i1.6941

Abstract

Elektrokoagulasi merupakan teknologi pengolahan limbah cair menggunakan tegangan listrik. Elektrokoagulasi memanfatkan prinsip elektrokimia untuk mengendapkan berbagai pengotor didalam limbah baik bahan organik maupun anorganik. Penelitian ini bertujuan untuk mengetahui pengaruh variasi jarak elektroda dan waktu proses elektrokoagulasi terhadap persen removal COD, TSS dan Intensitas warna. Pada penelitian ini menggunakan elektroda Al-Zn dengan ukuran 5x10 cm dan reaktor elektrokoagulasi 20x16x16 cm. Jarak elektroda pada proses elektrokoagulasi ini divariasikan yaitu pada jarak 2, 4 dan 6 cm. Waktu proses yang digunakan yaitu selama 220, 240, 260, 280 dan 300 menit. Tegangan listrik dalam proses elektrokoagulasi yang digunakan 12 volt. Hasil penelitian menunjukkan Persen removal COD dan Intensitas tertinggi pada lama waktu elektrokoagulasi 300 menit yaitu 93,49% dan 95,5%. Sedangkan untuk persen removal TSS lama waktu elektrokoagulasi terbaik pada 280 menit sebesar 78,71%. Jarak antar elektroda terbaik menghasilkan persen removal COD, TSS, dan intensitas warna, pada jarak terbaik pada 2 cm.
Comparison of the Effectiveness of Natural Coagulant Performance on% BOD Removal and% COD Removal in Pharmaceutical Industry Waste Maharani, Agustin; Setiawan, Dwi; Ningsih, Erlinda
Tibuana Vol 4 No 01 (2021): Tibuana
Publisher : UNIPA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/tibuana.4.01.3179.55-60

Abstract

Waste treatment can be done in variousways. One of the methods that can be used isthe coagulation and flocculation method. Thecoagulant used can be either a chemicalcoagulant or a natural coagulant. Naturalcoagulants can be used in wastewatertreatment for % removal of BOD and %removal of COD. By using moringa seedcoagulant, it showed % removal of BOD of90.12% and % removal of COD in thepharmaceutical industry waste a maximum of71.23%. Through the use of tapioca starchcoagulants, % removal of BOD and CODwas 95.25% and 94.63%. The use of smallcrab chitosan coagulant showed % removalof both BOD and COD’s results was 32%and 31%.
Kajian Literatur Kuantitatif Perbandingan Model Wilson Dan Margules Pada Kesetimbangan Uap–Cair Sistem SBAC–Acetamide dan SBA–Acetamide Pada 101,3 KPa Rakhmat mahmudin mahmudin; Wati Nur Astuti; Regina Vanesa Sebayang; Fardhal Alam Nur; Hasan Mutawakil Atourahman; Erlinda Ningsih
Prosiding SENASTITAN: Seminar Nasional Teknologi Industri Berkelanjutan Prosiding SENASTITAN Vol. 06 2026
Publisher : Institut Teknologi Adhi Tama Surabaya

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Abstract

Kajian ini membahas kembali data kesetimbangan uap-cair sistem sec-butyl acetate (SBAC)-acetamide dan sec-butyl alcohol (SBA)-acetamide pada tekanan 101,3 kPa dengan membandingkan model Wilson dan Margules. Data utama diperoleh dari hasil eksperimen, sedangkan teori pemodelan mengacu pada formulasi VLE, koefisien aktivitas, dan energi Gibbs. Hasil kajian menunjukkan bahwa acetamide mengubah distribusi komposisi fase uap-cair sehingga kecenderungan pseudo-azeotrope SBAC-SBA berkurang. Regresi Wilson terhadap data ln γ pada sistem SBAC-acetamide menghasilkan λ13 = 1.214 dan λ31 = 0.099, dengan RMSE ln γ sebesar 0.076, lebih rendah dibandingkan RMSE ln γ Margules pada sistem yang sama. Berdasarkan perbandingan ini, Wilson lebih sesuai untuk korelasi VLE, sedangkan Margules tetap berguna sebagai model sederhana untuk pembacaan awal non-idealitas larutan.Kata kunci: VLE, Wilson, Margules, Koefisien Aktivitas, Acetamide, Distilasi Ekstraktif.
Evaluasi Kinerja dan Kelayakan Finansial Sintesis Asam Salisilat Skala Industri Menggunakan Metode Kolbe-Schmitt Rindu Alifa Khaila Balqis; Vibianti Dwi Pratiwi; Prasdyandi Yanuar Samramadhan; Safira Luthfia Romadhona; Erlinda Ningsih
Prosiding SENASTITAN: Seminar Nasional Teknologi Industri Berkelanjutan Prosiding SENASTITAN Vol. 06 2026
Publisher : Institut Teknologi Adhi Tama Surabaya

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Abstract

Salicylic acid (C7H6O3) is a vital aromatic carboxylic acid extensively used in pharmaceuticals, cosmetics, and chemical intermediate manufacturing. Indonesia currently satisfies its domestic salicylic acid consumption through importation. To mitigate import dependence, stimulate growth of the domestic chemical industry, and optimize national industrial value-added, establishing a commercial-scale salicylic acid production plant is strategic. This preliminary plant design evaluates the synthesis of salicylic acid from phenol using sodium hydroxide via the Kolbe-Schmitt carboxylation route. The core manufacturing sequence comprises three main reaction stages: neutralization in a continuous stirred-tank reactor to form sodium phenolate; direct solid-gas carboxylation with carbon dioxide at 185 °C and 1 atm to yield sodium salicylate; and subsequent acidification with sulfuric acid to precipitate salicylic acid crystals, followed by rotary drying. Based on projected national consumption and export-import dynamics, a production capacity of 60,000 tons/year is established for operation in the Cikande Industrial Estate, Serang Regency, Banten. Economic feasibility analysis reveals a Fixed Capital Investment (FCI) of IDR 903.10 billion, Total Capital Investment (TCI) of IDR 1.062 trillion, and Total Production Cost (TPC) of IDR 2.783 trillion. Financial metrics yield an Internal Rate of Return (IRR) of 54.91%, Pay Out Time (POT) of 2.30 years, and a Break-Even Point (BEP) of 33.58%, confirming that the proposed plant is technically and economically viableKata kunci: Fenol, Kolbe-Schmitt, Natrium Hidroksida, Pra-Perancangan Pabrik, Salicylic Acid
Co-Authors Abas Sato Achmad Chusnun Ni'am Agus Budianto Alfania, Vicha Ali Altway Andika Putri Ratnasari Anggraheny, Nurul Arif, Mochammad Arlini Dyah Radityaningrum Arrad Ghani Safitra Bakhtiar, Dian Syaifulloh Basuki, Febrianus Agnos Budhikarjono, Kuswandi Kusno Chevy Renova D. Cahyo, Septian Daniel Saputra Dewi, Risty Christina Dian Yanuarita Purwaningsih Dwi Setiawan Dwicahyani, Anindya Rachma Eksalia, Lina Eky Novianarenti Fadilah, Siti Nur Fardhal Alam Nur Fardiansyah, Muhammad Edo H, Naufal Putra Hasan Mutawakil Atourahman Heroe Poernomo Imaniah Sriwijayasih Julaika, Sofiyya Kartika Udyani Lily Pudjiastuti, Lily Maharani, Agustin Misbahul Munir Mochamad Agil Yogi Parama Mustikasari, Yeni Ratu Nafiuddin, Mochammad Alfan Najuba, Maulidina Aulia Nanik Astuti Rahman Nisa, Nur Ihda Farikhatin Nur Azizah Nur, M. Fachrul Mi’rad. Parama, Mochamad Agil Yogi Prasdyandi Yanuar Samramadhan Pratama, Angga Saptya Pratiwi, Vibianti Dwi Puguh Rumanto Putra, Ganda Gautama Trisa Putranto, Wisnu Setyo Rakhmat mahmudin mahmudin Regina Vanesa Sebayang Rindu Alifa Khaila Balqis Romadahnia, Clarisa Novela Safira Luthfia Romadhona Salsabila, Kintan Rizky Saputra, Udi Widodo Suparto Suparto Vaggy, Wahyu Sandwi W. Putrisya, Santi Wati Nur Astuti Wulandari, Putri Oktavia Wulansari, Dessy Yasin Wijaya Yusof, Khairunnisa M. Yustia Wulandari Mirzayanti Zain Lillahulhaq Zuchrilah, Daril Ridho Zuhdi Ma’sum Zulaikha, Devie Mirza