Penggunaan Ekstrak Biji Kelor sebagai Biokoagulan pada Pengolahan Limbah Cair Laundry
DOI:
https://doi.org/10.23960/jtii.v2i2.35Abstract View: 488
Abstract
Limbah cair laundry seringkali dibuang ke badan air tanpa diolah terlebih dahulu sehingga semakin lama dapat mencemari lingkungan. Pada penelitian ini dilakukan pengolahan limbah cair laundry dengan menggunakan biokoagulan ekstrak biji kelor. Biokoagulan ekstrak biji kelor diperoleh dengan cara mengekstraksi biji kelor menggunakan larutan NaCl 1 M. Pengolahan limbah cair laundry dilakukan secara batch dengan cara mencampurkan berbagai dosis (20-160 ml/L) ekstrak biji kelor ke dalam 100 ml limbah cair laundry . Analisa pH, turbidity, COD dan fosfat pada limbah cair laundry dilakukan sebelum dan sesudah pengolahan. Dari hasil penelitian diperoleh bahwa semakin tinggi dosis biokoagulan semakin rendah pH limbah cair laundry . Turbidity menurun dari 561 NTU hingga 56 NTU apabila dosis ditingkatkan dari 20 hingga 80 ml/L, tetapi apabila dosis ditingkatkan lagi angka turbidity menjadi naik. Semakin tinggi dosis koagulan semakin rendah angka COD. Kandungan fosfat menurun dari 1,724 mg/L ke 0,836 mg/L apabila dosis biokoagulan dinaikan dari 20 hingga 40 ml/L, tetapi kandungan fosfat meningkat apabila dosis biokoagulan ditingkatkan lebih lanjut.
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Peraturan Menteri Lingkungan Hidup Nomor 5 Tahun 2014 tentang Baku Mutu Air Limbah
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