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All Journal Jurnal Ilmu Lingkungan Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati
Indah Murwani Yulianti
Fakultas Teknobiologi, Universitas Atma Jaya Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Potensi Calotropis gigantea dalam Fitoremediasi Logam Berat Timbal (Pb) Rafael Rape Liwun; Indah Murwani Yulianti; Boy Rahardjo Sidharta
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 6, No 2 (2021): June 2021
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v6i2.2985

Abstract

Timbal (Pb), sering disebut timah hitam, merupakan salah satu logam berat yang cukup berbahaya bagi kesehatan manusia dan makhluk hidup lainnya. Upaya pemulihan tanah yang tercemar logam berat perlu dilakukan salah satunya dengan fitoremediasi. Penelitian ini bertujuan untuk mengkaji potensi tanaman Calotropis giganteapotensi dalam meremediasi tanah tercemar logam beratPb serta melihat efektivitasnya.Rancangan percobaan yang digunakan adalah rancangan acak lengkap dengan perlakuan penambahan logam berat Pb sebanyak 0 ppm, 250 ppm, 500 ppm dan 750 ppm. Tanaman yang digunakan adalah biduri (Calotropis gigantea) yang telah dilakukan aklimasi selama 1 bulan dan perlakuan fitoremediasi selama 28 hari. Setelah dilakukan penelitian dapat disimpulkan bahwa: tanaman Calotropis giganteamemiliki potensi dalam meremediasi tanah tercemar logam beratPb dengan kemampuan menyerap sampai 93% pada kadar Pb yang rendah namun semakin kecil pada kadar yang tinggi; besarnya faktor transfer Pb Calotropis gigantea masih di bawah 1 sehingga kurang baik sebagai tanaman fitoremediator. Semakin besar logam berat Pb yang terserap semakin meningkatkan berat kering pada tanaman Calotropis gigantea.
Kemampuan Ampas Tahu dalam Proses Koagulasi Logam Berat Krom (Cr) pada Limbah Cair Pabrik Penyamakan Kulit Indah Murwani Yulianti; Junina Yulianti Baun; Fransiscus Sinung Pranata
Jurnal Ilmu Lingkungan Vol 21, No 2 (2023): April 2023
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.21.2.228-237

Abstract

AbstractLeather tannery wastewater is a waste from the production of raw leather into leather that has been tanned using chrome tanning material. In the production process, the liquid waste still contains around 20-40% chromium because during the production, not all of the chromium material is bound to the skin when discharged into the environment and because of that, it can cause lung cancer, skin cancer, renal tubular necrosis, skin hyperpigmentation even death. Based on the results of the characteristics of the tannery liquid waste using AAS (Atomic Absorption Spectrometry), it can be seen that the content of heavy metal chromium (Cr) is 501 mg / l. Tofu dregs is a biosorbent material because it contains protein which can bind heavy metals. The protein content in tofu dregs was 20.63%. The experimental design used in this study was factorial completely randomized design (RALF) with 2 factors, namely variations in tofu pulp weight (100 mg, 300 mg and 500 mg) and variations in contact time (60 minutes, 90 minutes and 120 minutes). Tofu dregs have the ability to reduce levels of heavy metal chromium (Cr) from 35.97% to 66.43% which means they have the same ability as alum on the market. The optimum weight of tofu dregs to reduce heavy metal chromium (Cr) is a variation of 100mg. The optimum contact time of the heavy metal chrome (Cr)  to bind tofu dregs is 90 minutes.
Co-Authors Boy Rahardjo Sidharta Fransiscus Sinung Pranata Junina Yulianti Baun Rafael Rape Liwun