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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Sains & Teknologi Lingkungan
Rizqa, Fauzul
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Agriculture, Biological Sciences & Forestry Computer Science & IT Earth & Planetary Sciences Education

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Pengolahan Air Limbah Penyamakan Kulit dengan Modifikasi Teknik Aerasi Farahdiba, Aulia Ulfah; Agung Rachmanto, Tuhu; Krisna Adji Pamungkas, Dikky; Rizqa, Fauzul
Jurnal Sains dan Teknologi Lingkungan Vol. 14 No. 1 (2022): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol14.iss1.art4

Abstract

Industri penyamakan kulit adalah industri yang menghasilkan kontaminan tinggi padatan tersuspensi, dan BOD. Salah satu alternatif dalam proses pengolahan limbah penyamakan kulit dengan menggunakan teknik aerasi. Pada penelitian ini, modifikasi teknik aerasi dengan merekayasa jenis gelembung udara dengan nano dispersed. Variasi yang digunakan dalam penelitian ini adalah jenis mikroorganimse (Nitrosomonas sp dan Nitrobakter sp), waktu kontak, dan jenis gelembung. Pada penelitian ini menunjukan bahwa jenis gelembung nano dispersed sangat efektif dalam menyisihankan BOD hingga 91,6%.
Batik Wastewater Treatment: Performance of Combination PAC with Hydrocyclone Separation Rosariawari, Firra; Amalia, Aussie; Dienullah, R Mohammad Alghaf; Fauzianto, Fajar Shufi; Rizqa, Fauzul
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 1 (2026): March 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v23i1.188-202

Abstract

Batik wastewater contains high levels of total suspended solids (TSS) and turbidity, making it difficult to decompose naturally. To prevent environmental pollution, this study investigated a treatment method that combined coagulation in a mixing tank and flocculation using a hydrocyclone. Polyaluminum chloride (PAC) was used as the coagulant. The coagulation process was tested at stirring speeds of 100–140 rpm and coagulant doses of 150–300 mg/L. The results showed that a coagulant dose of 300 mg/L and a stirring speed of 140 rpm achieved the highest removal efficiencies: 95.45% for TSS and 95.24% for turbidity. A two-way analysis of variance (ANOVA) confirmed that the coagulant dose significantly affected removal efficiency (p=0.049), whereas the stirring speed did not have a significant effect (p=0.77). Furthermore, particle size analysis (PSA) and zeta potential tests indicated that the PAC coagulant successfully destabilized the suspension in the wastewater, leading to the formation of large aggregates and accelerating the separation process. Overall, these results indicate that combining a coagulation mixing tank with a hydrocyclone flocculation unit offers an efficient and rapid solution for treating batik wastewater.  
Co-Authors Agung Rachmanto, Tuhu Aulia Ulfah Farahdiba Aussie Amalia Dienullah, R Mohammad Alghaf Fauzianto, Fajar Shufi Krisna Adji Pamungkas, Dikky Rosariawari, Firra