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      Perancangan Unit Desinfeksi untuk Menurunkan Fecal Coliform pada Sewage Treatment Plant

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      Date
      2026
      Author
      Ramdhana, Zakya Marcellia
      Tunggadewi, Andini Tribuana
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      Abstract
      Air hasil olahan Sewage Treatment Plant (STP) perlu memenuhi baku mutu sebelum dibuang atau dimanfaatkan kembali. Salah satu parameter mikrobiologis yang perlu dikendalikan adalah fecal coliform. Penelitian ini bertujuan mengevaluasi kesesuaian nilai fecal coliform pada efluen STP terhadap baku mutu yang berlaku, menganalisis efektivitas penambahan Natrium hipoklorit (NaOCl) dalam menurunkan fecal coliform, serta merancang unit desinfeksi pada STP. Penelitian dilakukan melalui pengujian karakteristik awal fecal coliform pada efluen STP, dilanjutkan dengan perlakuan desinfeksi NaOCl 0% dan penambahan NaOCl 1%. Efektivitas desinfeksi dievaluasi berdasarkan penurunan fecal coliform setelah perlakuan. Hasil penelitian menunjukkan bahwa penambahan NaOCl mampu menurunkan kadar fecal coliform pada efluen STP. Hasil tersebut menjadi dasar dalam perancangan unit desinfeksi dengan mempertimbangkan debit efluen, waktu kontak, kebutuhan desinfektan, dan kondisi aktual STP. Penelitian ini menunjukkan bahwa proses desinfeksi menggunakan NaOCl dapat menjadi alternatif pengolahan lanjutan untuk meningkatkan kualitas mikrobiologis efluen STP.
       
      Effluent from a Sewage Treatment Plant (STP) must meet quality standards before being discharged or reused. Fecal coliform is one of the microbiological parameters that requires control. This study aimed to evaluate the compliance of fecal coliform levels in STP effluent with applicable standards, analyze the effectiveness of sodium hypochlorite (NaOCl) addition in reducing fecal coliform, and design a disinfection unit for the STP. The research involved testing initial fecal coliform characteristics in the STP effluent, followed by disinfection treatments using 0% NaOCl and the addition of 1% NaOCl. Disinfection effectiveness was evaluated based on the reduction of fecal coliform levels following treatment. The results demonstrated that the addition of NaOCl effectively reduced fecal coliform levels in the STP effluent. These findings served as the basis for designing a disinfection unit, taking into account effluent flow rate, contact time, disinfectant dosage, and actual STP conditions. The study indicates that an NaOCl-based disinfection process can serve as an advanced treatment alternative to improve the microbiological quality of STP effluent.
       
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      http://repository.ipb.ac.id/handle/123456789/179471
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      • UF - Environmental Engineering and Management [313]

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      Copyright © 2020 Library of IPB University
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      Contact Us | Send Feedback
      Indonesia DSpace Group 
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