Agustina Dwi Rahmawati, Triastuti Sulistyaningsih

Pemanfaatan Ekoenzim dalam Pengolahan Limbah Cair Domestik pada Sistem IPAL DLH Kota Semarang

Introduction

Pemanfaatan ekoenzim dalam pengolahan limbah cair domestik pada sistem ipal dlh kota semarang. Pemanfaatan ekoenzim untuk pengolahan limbah cair domestik di IPAL DLH Semarang. Teliti dosis optimal turunkan BOD, COD, TSS, netralkan pH, bandingkan efektivitas ekoenzim buah & sayur.

Abstract

Pengolahan limbah cair yang tidak tepat dapat menimbulkan pencemaran air dan berpotensi membahayakan ekosistem. DLH Kota Semarang memiliki sistem IPAL untuk mengolah limbah cair domestiknya yang pengolahannya menggunakan metode konvensional. Metode tersebut memiliki tantangan dan beberapa kendala, seperti biaya operasional yang tinggi dan penggunaan bahan kimia yang berdampak negatif pada lingkungan. Ekoenzim merupakan alternatif pengolahan limbah cair yang ramah lingkungan. Penambahan ekoenzim dapat meningkatkan kemampuan mikroorganisme dalam menguraikan limbah cair domestik dan membantu mengurangi ketergantungan bahan kimia pada pengolahan limbah. Tujuan penelitian ini yaitu menganalisis dosis ekoenzim yang tepat dalam menurunkan kandungan BOD, COD, TSS, dan menentralkan nilai pH serta menganalisis perbandingan efektivitas ekoenzim berbahan campuran buah dengan ekoenzim campuran sayur. Penelitian ini terdapat 7 perlakuan, meliputi kontrol, perlakuan 2 jenis ekoenzim berbeda yaitu ekoenzim berbahan buah dan ekoenzim berbahan sayur, dan 3 variasi penambahan dosis ekoenzim berturut-turut 10, 20, dan 30 mL. Hasil penelitian menunjukkan bahwa penambahan ekoenzim meningkatkan nilai BOD dan TSS dibandingkan pada kontrol tanpa penambahan ekoenzim. Parameter COD dan pH, dosis ekoenzim buah 20 mL efektif menurunkan kadar COD menjadi 13,3 mg/L dan menentralkan pH menjadi 6,8. Ekoenzim campuran buah efektif untuk parameter BOD, COD, dan pH, sedangkan ekoenzim campuran sayur lebih efektif untuk parameter TSS.

Review

This study investigates the practical application of ecoenzymes for domestic wastewater treatment within the Semarang City Environmental Agency's (DLH) IPAL system, addressing the limitations of conventional methods such as high operational costs and negative environmental impacts of chemical use. The research aims to identify optimal ecoenzyme dosages for reducing BOD, COD, and TSS, and for pH neutralization, while also comparing the effectiveness of fruit-based versus vegetable-based ecoenzymes. This focus on a sustainable and environmentally friendly alternative to traditional wastewater treatment is highly relevant and timely, particularly given the escalating concerns over water pollution and ecosystem health. The study's direct application within an existing municipal facility adds significant practical value to its findings. The methodology involved seven treatment groups, including a control, two types of ecoenzymes (fruit and vegetable), and three dosage levels (10, 20, and 30 mL) applied to the wastewater. A notable and somewhat counter-intuitive finding was the increase in BOD and TSS values with ecoenzyme addition compared to the control. However, the study demonstrated positive effects on other parameters: a 20 mL dose of fruit ecoenzyme proved effective in reducing COD to 13.3 mg/L and neutralizing pH to 6.8. Furthermore, the research found that fruit-based ecoenzymes were more effective for BOD, COD, and pH parameters, while vegetable-based ecoenzymes showed greater efficacy in reducing TSS. These differential effects highlight the importance of ecoenzyme composition and dosage for targeted treatment goals. While the study successfully identifies specific ecoenzyme types and dosages for improving certain wastewater parameters like COD and pH, the increase in BOD and TSS warrants further investigation and explanation within the manuscript. This unexpected outcome could be due to initial stages of organic matter breakdown into smaller, more easily measurable components, or other complex interactions not fully elucidated in the abstract. Future research could benefit from exploring the underlying mechanisms behind these observed increases, perhaps with a more detailed time-course analysis or microbial community assessment. Nonetheless, this research provides valuable preliminary data for the practical implementation of ecoenzymes in an urban wastewater treatment setting, offering a promising step towards more sustainable and cost-effective wastewater management strategies.

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