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      Pemanfaatan Sludge Dari Proses Waste Water Treatment Plant Sebagai Koagulan Alternatif Pada Proses Pengolahan Air Limbah.

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      Date
      2025
      Author
      Adjana, Dwi Naufan
      Pulunggono, Heru Bagus
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      Abstract
      Air limbah batik mengandung TSS dan logam berat seperti Zn yang berpotensi mencemari lingkungan sehingga memerlukan pengolahan efektif. Pemanfaatan sludge sebagai koagulan alternatif mampu mengelola limbah sludge, mengurangi biaya koagulan komersial, dan meminimalisir dampak lingkungan secara simultan. Tujuan penelitian ini adalah mengkaji pemanfaatan sludge dari Waste Water Treatment Plant (WWTP) sebagai koagulan alternatif pada pengolahan limbah cair batik. Metode penelitian meliputi analisis kadar Fe sludge dengan Atomic Absorption Spectrophotometry (AAS), pembuatan koagulan alternatif melalui asidifikasi, serta uji efektivitas menggunakan jar test dengan variasi perlakuan (P1, P2, P3) dan dosis (8 ml, 10 ml, 12 ml). Hasil penelitian menunjukkan kandungan Fe sludge sebesar 3,76% dan setelah asidifikasi meningkat menjadi 51,3–54,9 mg/l. Koagulan alternatif mampu menurunkan TSS hingga 93,1% dan Zn hingga 52,3%, dengan dosis optimum pada P3 dosis 10 ml (TSS: 103 mg/l, Zn: 237 mg/l). Nilai akhir TSS dan Zn masih berada di atas baku mutu, namun sludge WWTP memiliki potensi sebagai koagulan ramah lingkungan dengan optimasi lanjutan
       
      Batik wastewater contains high levels of TSS and heavy metals such as Zn, which can pollute the environment and require effective treatment. Utilizing sludge as an alternative coagulant offers simultaneous benefits by managing sludge waste, lowering coagulant costs, and reducing environmental impact. This study aimed to examine the use of sludge from a Wastewater Treatment Plant (WWTP) as an alternative coagulant in batik wastewater treatment. The methods included analyzing Fe content in sludge using Atomic Absorption Spectrophotometry (AAS), producing coagulants through acidification, and testing their performance with jar tests using treatments (P1, P2, P3) and doses (8 ml, 10 ml, 12 ml). Results showed Fe content in sludge was 3.76% and increased after acidification to 51.3–54.9 mg/l. The alternative coagulant reduced TSS by up to 93.1% and Zn by 52.3%, with optimum results at P3 with a 10 ml dose (TSS: 103 mg/l, Zn: 237 mg/l). Final TSS and Zn values remained above standards, yet WWTP sludge shows promise as an eco-friendly coagulant with further optimization.
       
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      http://repository.ipb.ac.id/handle/123456789/171348
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      • UT - Environmental Engineering and Management [212]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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