Bioaugmentasi Pemulihan Tanah Tercemar Timbal Menggunakan Media Kompos

Margareth, Cecilia (2008) Bioaugmentasi Pemulihan Tanah Tercemar Timbal Menggunakan Media Kompos. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini menyelidiki kemampuan mikroorganisme kompos yaitu Bacillus subtilis untuk menurunkan kadar timbal di dalam tanah dengan proses bioaugmentasi, dimana terdapat mikroorganisme Pseudomonas putida di tanah. Range konsentrasi timbal di dalam tanah tercemar adalah 10–70 mg/Kg dimana proporsi komposisi mikroorganisme antara B. subtilis dan P. putida adalah 3:1 dan 1:1 (dalam colony forming unit: CFU). Berdasarkan standart untuk 50% penurunan timbal dan 50% penyisihan mikroorganisme diketahui bahwa B. subtilis dapat bersinergi dengan P. putida untuk memperbesar penurunan kadar timbal di dalam tanah. Initial Concentration Time Fifty (ICT-50) dari bioaugmentasi dapat digunakan untuk memperkirakan konsentrasi maksimum timbal di dalam tanah yang dapat dipulihkan dengan menambahkan mikroorganisme dari luar. ICT-50 untuk 35 mg/Kg pada tanah tercemar timbal dapat dipulihkan dengan menambahkan B. subtilis sebesar 3 kali lebih banyak dibanding dengan P. putida.
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This research investigated the ability of compost microbes, containing primarily Bacillus subtilis, in augmenting lead removal from soil, containing Pseudomonas putida. Various levels of lead-polluted soil, ranging from 10 to 70 mg/Kg, were amended with compost microbes in the proportion of *B. subtilis over P. putida of 3/1 and 1/1 (in colony-forming units: CFU). By means of half time for 50% lead removal and 50% microbial elimination (t-50) criterion, B. subtilis in synergy with P. putida augmented lead removal. Initial concentration time fifty (ICT-50) of bioaugmentation was a novel criterion to assess the maximum lead concentration initially present in soil that could be treated by addition of external microbial species. ICT-50 of 35 mg/Kg could be treated by addition of B. subtilis three times higher than P. putida in lead-polluted soil.

Item Type:	Thesis (Other)
Additional Information:	RSL 628.55 Mar b
Uncontrolled Keywords:	ICT-50, penurunan timbal, penyisihan mikroba, t-50, ICT-50, lead removal, microbial elimination, t-50
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA455.S6 Soil (Materials of engineering and construction)
Divisions:	Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Gunawan .
Date Deposited:	26 Oct 2026 03:49
Last Modified:	26 Oct 2026 03:49
URI:	http://repository.its.ac.id/id/eprint/145853

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