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All Journal The Journal of Experimental Life Sciences (JELS) Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Sa'diyah, Wasiatus
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Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology Neuroscience

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Toksisitas Limbah Cair Tepung agar Hasil Perlakuan Konsorsia Bakteri dengan Organisme Uji Daphnia Sp. Sa'diyah, Wasiatus; Suarsini, Endang; Ibrohim, I
Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) 2016: Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.152 KB)

Abstract

Upaya dalam mencagah pencemaran logam berat limbah cair industri salah satunya dapat dilakukan dengan memanfaatkan bakteri indigen. Penggunaan konsorsia bakteru terbukti dapat mengurangi kandungan logam berat pada limbah cair tepung agar. Kadar aman limbah hasil perlakuan perlu diuji lebih lanjut dengan menerapkan uji toksisitas. Uji toksisitas digunakan untuk mengetahui respon organisme terhadap semua kandungan senyawa di dalam limbah cair. Salah satu organisme yang bisa digunakan sebagai hewan uji adalah Daphnia sp.. Tujuan dari penelitian ini adalah untuk menentukan toksisitas limbah hasil perlakuan limbah cair tepung agar dengan konsorsia bakteria pada LC50 dalam 48 jam. Penentuan konsentrasi berdasarkan range finding test, hingga ditentukan 5 serial konsentrasi sebagai uji utama yaitu 50%,40%, 30%, 20%, dam 10% dan dibandingkan dengan kontrol (0%). Analisis yang digunakan menggunakan probit. Hasil penelitian menunjukkan bahwa nilai toksisitas LC50-48 jam limbah cair tepung agar menggunakan hewan uji Daphnia sp. adalah sebesar
Effectiveness of Indigenous Lead (Pb) Reducing Bacteria Consortia of Waste Water Treatment in Agar Flour Industry Sa'diyah, Wasiatus; Suarsini, Endang; Ibrohim, Ibrohim
The Journal of Experimental Life Science Vol. 6 No. 1 (2016)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (936.655 KB) | DOI: 10.21776/ub.jels.2016.006.01.09

Abstract

Lead (Pb) is known as toxic element in environment. It is produced from processing of Agar Flour industry activities. Enhancement of Pb in the waste water of agar flour is very dangerous for human health. Effect of lead damage some organ e.g. kidney, liver, and hair. Environment standard of lead concentration on waste water based on Governor of East Java Regulation No. 72 of 2013 is 1 mg.L-1, otherwise, initial lead levels of waste water are 3.114 mg.L-1. The aim of the research is reducing the level of lead to be harmless for the environment. One method to decrease a high concentration of lead in waste water is biosorption. Consortia of Bacillus alvei and Bacillus pumilus as indigenous bacteria are used to decrease Pb level in the wastewater. The experiment was carried out with varies of wastewater concentration and bacteria 3 %, 4%, 5%, 6%, and 7%. Consortium of B. alvei dan B. pumilus at 7 % concentration have the highest potency 93.58 % to reduce lead reach 0.2 mg.L-1.Keywords: Bacteria, Consortia, Concentration, Pb, Waste of Agar Flour
Co-Authors Endang Suarsini Ibrohim Ibrohim, I