Storage and Condition of Biomass Influence to Biosorption of Lead (II) and Zinc(II) by &lt;i&gt;Saccharomyces cerevisiae&lt;/i&gt; Biomass

Jasmidi, Jasmidi; Sugiharto, Eko; Mudjiran, Mudjiran

doi:10.22146/ijc.21955

Cited by 1 publication

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“…The electronegativities and covalent indexes of Fe and Mn ions are very different. Also, the lower ion interactions are actively stronger and faster due to their ligand polarization abilities [44,46]. In Table 2, we can compare the results obtained in this work with those reported elsewhere, from which we can clearly see that our work obtained excellent removal of heavy-metal (Fe and Mn) within only 7 days.…”

Section: Resultssupporting

confidence: 60%

Comparison of Phytoremediation and Filtration for Diamond-mine-tailings Water Treatment

Noor

Rahman

Gazali

et al. 2020

MST

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The water pollution caused by diamond mine activities can kill aquatic life. In this work, we used phytoremediation and filtration to treat pond water polluted by the tailings of a diamond mine located in South Kalimantan, Indonesia. Einchhornia crassipes (water hyacinth) was utilized as the biomass for the phytoremediation process. Gravel (10-15 mm) and sand (0.1-1 mm) were used as filter media in the simple filtration setup, using an up-flow system (bottom to top). In the experiment, 16 L of diamond tailing water was poured into five phytoremediation reactors (each 60 L in volume), which were then tested over seven days. A pretreatment analysis of the tailings water showed that its biochemical oxygen demand (BOD) of 8.9 mg L −1 and chemical oxygen demand (COD) of 22 mg L −1 exceeded the national maximum standards of 2 mg L −1 and 10 mg L −1 , respectively. The experimental results demonstrate that both phytoremediation and filtration could increase the dissolved oxygen concentration (4.7 mg.L −1 ) and reduce the BOD (3.2 mg.L −1 ), COD (6.5 mg.L −1 ), Fe (0.6 mg.L −1 ), Mn (0.16 mg.L −1 ), and ammonia (0.63 mg.L −1 ) concentrations from those measured in the raw diamond-mine-tailings water. The phytoremediation performance was better than that of filtration. The COD values were successfully reduced to the permissible limit, although the other parameters still failed to meet the government water quality regulation requirements. Abstrak Metode Perbandingan antara Proses Fitoremediasi dan Proses Filtrasi Sederhana untuk Mengolah Air BekasGalian Tambang Intan. Polusi air yang disebabkan aktivitas pertambangan dapat membunuh kehidupan akuatik. Penelitian ini bertujuan untuk mengolah air tercemar bekas galian tambang intan di Kalimantan Selatan, Indonesia menggunakan proses fitoremediasi dan filtrasi sederhana. Eichornia Crassipes (eceng gondok) digunakan sebagai biomassa selama proses fitoremediasi. Media penyaring seperti kerikil (10-15 mm) dan pasir (0,1-1 mm) ditambahkan ke dalam reaktor filtrasi sederhana yang memiliki aliran atas (dari bawah ke atas). 16 L air bekas galian tambang intan dituangkan ke dalam 5 reaktor (volume 60 L) dan di uji selama 7 hari pada proses fitoremediasi menggunakan metode batch. Analisis pra-perlakuan air tercemar bekas galian tambang menunjukkan BOD sebesar 8,9 mg.L -1 dan COD sebesar 22 mg.L -1 melebihi maksimum nasional yaitu 2 dan 10 mg.L -1 , berturut-turut. Berdasarkan eksperimen, fitoremediasi dan filtrasi memiliki kemampuan untuk meningkatkan DO (4.7 mg.L -1 ) dan mengurangi BOD (3.2 mg.L -1 ), COD (6.5 mg.L -1 ), Fe (0.6 mg.L -1 ), Mn (0.16 mg.L -1 ) serta ammonia (0.63 mg.L -1 ) dari nilai awal air bekas galian tambang. Fitoremediasi menghasilkan performa lebih baik dalam penyisihan dibandingkan filtrasi. Nilai akhir COD memenuhi baku mutu, sedangkan parameter lain tidak memenuhi peraturan pemerintah mengenai kualitas air.

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Section: Resultssupporting

confidence: 60%