The Effectiveness of Alum Made of Uncoated Aluminium Foil Waste in Improving the Quality of Liquid Waste of the Tofu Industry

Nyoman Sri Widari, Agung Rasmito, Abas Sato

Abstract


Aluminium foil waste increases every year in line with technology development, especially in the food and beverage industry. It will cause significant environmental problems because the packaging cannot be destroyed in the soil. Therefore, it is necessary to reprocess a large amount of aluminium waste into an alternative product such as alum which can be applied directly to the treatment of liquid tofu waste. In this study, uncoated aluminium foil waste was used, which was taken at random landfill sites and then washed and cut into small pieces. Dissolution of aluminium using KOH solution then the solution obtained is reacted with H2SO4 solution and the reaction is carried out at a temperature of 70oC. The experimental results got a maximum yield of 63.69% with Al2O3  content of 15.18% using 3 M KOH concentration and 5 M H2SO4 concentration. The obtained alum was then applied to the tofu industrial liquid waste. With the use of 800 ppm alum, there was a 60% decrease in the colour content of the Pt-Co unit, a 95.8% decrease in NTU and a 63.33% decrease in TDS. The quality of the liquid waste obtained met the technical requirements of raw water that can be treated by SNI 6773: 2008.


Keywords


Aluminum Foil; Uncoated; Alum; Wastewater

Full Text:

PDF

References


Fitzgerald, P., French,G. The Production of Aluminium. Nzic.org.nz /Chem Processes/ 8D. Pdf diunduh tgl 25 agustus 2021.

Soelistya dyah Jekti,D. 2018. Peran Mikroba Dalam Pengelolaan Lingkungan. Prosiding Seminar Nasional Pendidikan Biologi ( ISBN: 918-602-61265-2-8) Juni 2018.

Widari,N.S., Rasmito,A., Rovidatama,A. 2020. Optimasi Pemakaian Starter EM4 dan Lamanya Fermentasi pada Pembuatan Pupuk Cair Berbahan Limbah Cair Industri Tahu. Jurnal Teknik Kimia , Vol. 15, No.I , Oktober 2020:1- 7.

Amin,A., Yulia,A. Dan Nurbati. 2017. Pemanfaatan Limbah Cair Tahu Untuk Pertumbuhan dan Produksi Tanaman Pokcoy. Jurnal Faperta, Vol.4, No.2, Oktober 2017: 1- 11.

Demak,N. 2015. Perbandingan Antara Limbh Cair Tahu Dengan Limbah Teh Basi Terhadap Laju Pertumbuhan Tanaman Stathiphyllum Fluribumdu. Prosiding seminar Pendidikan Biologi “ Peran Biologi dan Pendidikan Biologi Dalam Menyiapkan Generasi Unggul dan Berdaya Saing Global: 472- 482.

Afifah, R., Endang, P. Pemanfaatan Limbah Aluminium Sebagai Koagulan Dalam Pengolahan Limbah Cair dan Penjernihan Air Prosiding SEMATEKSOS 3 , “Strategi Pembangunan Nasional Menghadapi Revolusi Industri 4.0 “. : 243- 247.

Manurung,M.,Irma,F,A. 2010. Kandungan Aluminium Dalam Kaleng Bekas dan Pemanfaatannya Dalam Pembuatan Tawas. Jurnal Kinia, 2 (2), Juli 2010: 180- 186.

Purnawan,I., Rizki Budi,R.2014. Pengaruh Konsentrsi KOH pada Pembuatan Tawas dari kaleng Aluminium Bekas. Vol.6, No.2. Juli 2014 : 109- 119.

Anggraini,L., Elvi,Y.,Shinta,E. 2017. Daur Ulang Aluminium Voil Kemasan Aseptik Menjadi Tawas. Jom FTEKNIK, Vol.4, No.1, Februari 2017: 1- 6.

Syaiful,M., Anugrah,I., Danny,A. 2014. Efektivitas Alum dari Kaleng Minuman Bekas Sebagai Koagulan Untuk Penjernihan Air. Jurnal Teknik Kimia, No.4.Vol.20, Desember 2014: 39- 45.

Busyairi,M.,Edhi,S.,Arum,P. 2018. Pemanfaatan Aluminium dari Limbah Kaleng Bekas Sebagai Bahan Baku Koagulan Untuk Pengolahan air Asam Tambang. Jurnal Sain dan Teknologi Lingkungan , Vol. 10, No. 1, Januari 2018: 15-25.

Harefa,N., Sumiyati., Gayus,S.T., Desy,L.S,. 2019. Efektivitas Tawas Hasil Olahan Limbah Aluminium Terhadap Penyerapan Logam Alkali Dengan Metode Grafimetri. Jurnal EduMatSains, 4(1) Juli 2019: 65- 76.

Mahmida,N,A., Liayati,M. 2017. Recykle Afalan Kemasan Aluminium Foil Sebagai Koagulan pada IPAL . Jurnal Teknologi Proses dan Inovasi Industri; Vol.2, No.2 . November 2017: 71- 75.

Hakim,L.,Intan,M. 2017. Pemanfaatan Limbah Aluminium Foil Untuk Produksi Gas Hidrogen Menggunakan Katalis Natrium Hidroksida (NaOH). Jurnal Teknologi Kimia Unimal. 6: 1, Mei 2017: 68- 81.

Zhu,G., Zhen,H., Zhang,Z., Tshukudu,T., Zhang,T., Xiang,X. 2011. Charakterization and Coagulation – Flocolation Behavior of Polymeric Aluminium Ferric Sulfate (PAFS). Chemical EngineeringJournal. 178: 50- 59. https://doi.org/10.1.016/j.Cej.2011.10.008.

Samuel,D.Faust., Osman,M, Aly .1999.Chemistry of Water Treatment , 2rd. Chelsea, MI: Ann Abor Press. ISBN 9781575040110.

Vogel. 2005. Bulu Teks Analisis Anorganik Kualitatif Makro dan Semimikro. Edisi ke lima. PT. Kalman Media Pustaka. Jakarta.




DOI: https://doi.org/10.31284/j.iptek.2021.v25i2.2292

Refbacks

  • There are currently no refbacks.


 

Indexed by:

Sinta S3Google Scholar Indonesia OneSearch
GARUDA Garba Rujukan DigitalDimensions Logo