EFEKTIVITAS PENGOLAHAN LIMBAH CAIR INDUSTRI TAHU DENGAN METODE AERASI UNTUK MENURUNKAN KADAR BOD
Abstract
The tofu industry is a food industry that uses raw materials from soybeans, where tofu is one of the processed products of soy extract done with the addition of vinegar. The liquid waste of tofu which is produced contains many suspended and dissolved solids, if the tofu waste is directly discharged into the body of water will affect the survival of biota in suangai and pollute the environment, if this is left, the waste will change color into black and foul smelling colat, also will pollute the soil and disrupt the living things around it.Jenis penelitian quasi experiment, desain penelitian pre-post test. Alat dan bahan kontainer plastik 90 lt, aerator, pompa air, selang, media pecahan batu bata. Penelitian ini dilakukan dengan variasi ketebalan media 10 Cm, 20 Cm, 30 Cm dan lama waktu kontak 3 hari, 6 hari dan 9 hari. Pengukuran parameter BOD dilakukan sebelum dilakukan perlakuan dan setelah perlakuan pada hari ketiga, keenam dan kesembilan. Hasil pengukuran dibandingkan dengan baku mutu air limbah berdasarkan PerMenLHRI No. 15 Tahun 2014. Data dianalisis secara univariat dan di sajikan secara deskriptif.Hasil Uji Statistik Kruskall Wallis didapatkan tidak ada perbedaan kadar BOD ketebalan media pecahan batu bata 10 Cm, 20 Cm, dan 30 Cm baik pada hari ke 3, 6 dan 9. Penurunan BOD yang paling efektif pada ketebalan 10 Cm hari ke 6 terjadi penurunan sebesar 64,27 %.Penelitian ini dapat dijadikan salah satu alternatif pengolahan limbah tahu dan penelitian ini dapat dilanjutkan dengan penambahan bakteri yang spesifik untuk meningkatkan efektifitasnya.
Downloads
An author who publishes in the Journal of Nursing and Public Health agrees to the following terms:
Author retains the copyright and grants the journal the right of first publication of the work simultaneously licensed under the Creative Commons Attribution-ShareAlike 4.0 License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal
Submission of a manuscript implies that the submitted work has not been published before (except as part of a thesis or report, or abstract); that it is not under consideration for publication elsewhere; that its publication has been approved by all co-authors. If and when the manuscript is accepted for publication, the author(s) still hold the copyright and retain publishing rights without restrictions. For the new invention, authors are suggested to manage its patent before published. The license type is CC-BY-SA 4.0.
Journal of Nursing and Public Health is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.