PEMANFAATAN LIMBAH UBI KAYU DARI SISA PENGOLAHAN TEPUNG TAPIOKA DI KECAMATAN MARGOYOSO KABUPATEN PATI MENJADI BAHAN ADSORBEN UNTUK PENJERNIH AIR

Jotti Karunawan; Annisa Lidia Wati; Ita Rahmawati; Sulhadi Sulhadi; Aan Priyanto; Mahardika Prasetya Aji

doi:10.21009/03.SNF2017.02.ERE.06

Jotti Karunawan Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Semarang Jalan Raya Sekaran Gunungpati, Semarang, Jawa Tengah 50229
Annisa Lidia Wati Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Semarang Jalan Raya Sekaran Gunungpati, Semarang, Jawa Tengah 50229
Ita Rahmawati Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Semarang Jalan Raya Sekaran Gunungpati, Semarang, Jawa Tengah 50229
Sulhadi Sulhadi Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Semarang Jalan Raya Sekaran Gunungpati, Semarang, Jawa Tengah 50229
Aan Priyanto Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Semarang Jalan Raya Sekaran Gunungpati, Semarang, Jawa Tengah 50229
Mahardika Prasetya Aji Jurusan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Semarang Jalan Raya Sekaran Gunungpati, Semarang, Jawa Tengah 50229

DOI: https://doi.org/10.21009/03.SNF2017.02.ERE.06

Abstract

One of the central cassava production is located in Pati Regency Central Java. The high production of cassava is supported by cassava post-harvest and process it into tapioca flour. However, the problem arises during the production of tapioca flour from cassava. Waste materials which are produced from tapioca flour production pollute the environment. Charcoal (carbon material) has been produced from tapioca waste material production through pyrolysis process. The carbon performance is tested by analyzing its absorbance toward methylene blue solutions. The carbon performance testing shows that the absorption intensity of methylene blue decreased. This result indicates the absorption of methylene blue by carbon. The descent rate of methylene blue intensity is correspond to tho the addition of carbon mass. Carbon from cassava waste is effective as absorbent to reduce methylene blue textile waste.

Keywords: Waste, Cassava, Pati district.