Perencanaan Instalasi Pengolahan Air Limbah Industri Alkohol di Desa Bekonang
Submission Date: 2022-07-26 14:24:30
Accepted Date: 2022-12-12 10:09:48
Abstract
Industri alkohol skala rumah tangga yang berada di Desa Bekonang Kabupaten Sukoharjo merupakan industri alkohol yang sudah lama ada dan sudah turun temurun dari generasi ke genarasi. Proses produksi alkohol di Desa Bekonang dilakukan dengan cara distilasi dengan bahan baku utama tetes tebu. Air limbah hasil distilasi ini memiliki warna coklat pekat dan berbau sedikit menyengat. Air limbah ini juga memiliki nilai COD, BOD, TSS dan nutrien yang tinggi sehingga perlu diolah terlebih dahulu sebelum dibuang ke lingkungan. Oleh karena itu akan direncanakan instalasi pengolahan air limbah untuk mengolah air limbah hasil produksi alkohol di Desa Bekonang. Perencanaan ini dilakukan dengan melakukan pengambilan data primer melalui survey dan uji laboratorium serta data sekunder dengan melakukan tinjauan pustaka. Dari tinjauan pustaka didapat kriteria desain yang kemudian digunakan untuk perhitungan unit pengolahan. Dari hasil perhitungan kemudian dilakukan penggambaran sesuai kaidah gambar teknik. Berdasarkan hasil dari perencanaan, didapat debit air limbah rata-rata sebesar 5,88 m3/hari dan debit air limbah maksimum sebesar 9,408 m3/hari. Air limbah dari masing-masing industri diangkut menuju IPAL dengan menggunakan mobil bak. Teknologi pengolahan yang digunakan adalah saringan, bak ekualisasi, anaerobik baffled reaktor, moving bed bioreactor, dan clarifier. Kualitas air limbah hasil pengolahan didapat sebesar TSS 74 mg/L, COD 193 mg/L, BOD 84 mg/L. Luas lahan yang diperlukan untuk pembangunan IPAL sebesar 246 m2 dengan total biaya investasi sebesar Rp208.103.096,43.
Keywords
Air Limbah Industri; Industri Alkohol Bekonang; Pengolahan Air Limbah
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