Abstract
In the processing of chips using cassava (Manihot utilissima), it will produce waste in the form of solid and liquid waste. The liquid waste of processing cassava chips contains organic compounds that are easily decomposed and cause unpleasant odors. If the liquid waste is discharged directly into the environment, it will cause pollution and damage the environment. One of the steps that can be used to overcome this problem is phytoremediation. The purpose of this study was to determine the best treatment in the processing of cassava chips industrial wastewater so that the liquid waste is safe to dispose of into the environment. In this study, using two types of aquatic plants, namely water hyacinth (Eichhornia crassipes) and kiambang (Pistia stratiotes) and using alum to remediate liquid waste. This research was conducted experimentally using a jar with a diameter of 15 cm and a height of 25 cm with 3 repetitions of each treatment. The data obtained were analyzed descriptively to determine the best treatment that can be used for remediation of cassava chips industry wastewater. The results showed that the use of water hyacinth plants (Eichhornia crassipes) could improve the quality of wastewater so that it is safe to dispose of into the environment.
Highlights
In the processing of chips using cassava (Manihot utilissima), it will produce waste in the form of solid and liquid waste
The purpose of this study was to determine the best treatment in the processing of cassava chips industrial wastewater so that the liquid waste is safe to dispose of into the environment
The data obtained were analyzed descriptively to determine the best treatment that can be used for remediation of cassava chips industry wastewater
Summary
Indonesia memiliki banyak industri yang menjadi lahan pekerjaan bagi sebagian masyarakat baik industri berskala besar maupun industri berskala kecil atau industri rumahan. Akan tetapi masyarakat yang memiliki industri menganggap limbah cair dari pengolahan keripik singkong tidak menyebabkan pencemaran lingkungan. Pengolahan limbah secara biologi salah satunya dapat menggunakan tanaman yang secara alami memiliki daya serap dan dapat mengakumulasi logam beracun serta zat organik dalam jaringan tanaman (Felani & Hamzah, 2007). Penelitian ini bertujuan untuk mengetahui perlakuan terbaik dalam menurunkan parameter kualitas air seperti kekeruhan, warna dan bau dari limbah cair industri keripik singkong menggunakan tanaman eceng gondok, kiambang dan tawas. Pada penelitian sebelumnya yang menggunakan tiga jenis tanaman air yaitu eceng gondok, kiambang dan kangkung air untuk proses fitoremediasi limbah cair pembuatan tempe diperoleh hasil bahwa eceng gondok dan kangkung air memiliki kemampuan menurunkan kandungan parameter kualitas air yang lebih baik dibandingkan dengan tanaman kiambang (Novita et al, 2019). Sedangkan pada penelitian kali ini hanya menggunakan dua jenis tanaman air yaitu eceng gondok dan kiambang, akan tetapi menggunakan tawas sebagai perlakuan tambahan
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