BIOSORPSI KROM VILENSI TIGA DM ENAM OLEH Penlcillium spr Fusarium sp DM! Aspergillus niger

Fitriana Ika Harini, Dr.Ir.Suharjono Triatmojo,M.Sc.; Ir. Lies Mira Yusiati, SU., IPU., ASEAN Eng.

2003 | Skripsi | S1 ILMU DAN INDUSTRI PETERNAKAN

Penelitian ini bertujuan untuk mengetahui kemampuan biosorpsi krom (VI) dan krorn (III) dari larutan KoCr207 dan CrCls oleh biomasa jamur Penicillium sp. Fusarium sp dan Aspergillus niger (K1, K2 dan K3). Pengukuran kadar krom menggunakan spektrofotometer dengan metode Difenil Carbazid. Untuk mengetahui kadar krom dalam larutan, seberat 0,1 g biomasa yang telah mendapatkan pra perlakuan natrium hidroksida dicampur dengan 75 ml larutan K,Cr2(07 dan CrCls. Setelah enam jam, biomasa dan larutan dipisahkan dengan cara disaring. Filtrat yang diperoleh ditentukan kadar kromnya secara spektrofotometris dengan metode Difenil Carbazid. Perbedaan sebelum dan sesudah aplikasi menunjukkan besar biosorpsi oleh biomasa Jjamur. Data yang terkumpul dianalisis variansi dengan Rancangan Acak Lengkap Pola Searah dan beda rerata diuji dengan Duncan's New Multiple Range Test (DMRT) . Hasil penelitian menunjukkan bahwa kemampuan biomasa Jjamur Penicillium sp untuk menyerap krom (VI) secara nyata (P<0,05) 1lebih tinggl dibanding Aspergillus niger, sedangkan kemampuan Fusarium sp tidak berbeda secara nyata dibandingkan dengan Penicillium sp dan Aspergillus niger (98,89% terhadap 99,50% dan 98,48%). Kemampuan Fusarium sp dalam menyerap krom (III) lebih tinggl (P<0,05) dibandingkan pada Penicillium sp dan Aspergillus niger (82,39% terhadap 64,35% dan 55,80%). Dari penelitian ini dapat ditarik kesimpulan bahwa biomasa Jjamur Penicillium sp- Fusarium sp dan Aspergillus niger pra perlakuan kimia dapat digunakan untuk menyerap krom dari larutan K,Cr2(7 dan CrCls. (Kata kunci: Jamur Penicillium sp. Fusarium sp, Aspergillus niger., Pra perlakuan kimia, Biosorpsi, Krom, Larutan K;Cr207 dan CrCls)

BIOSORPTION OF CHROMIUM (III) AND CHROMIUM (VI) BY Penicillium sp, Fusarium sp AMD Aspergillus niger ABSTRACT The purpose of the experiment was to study the capability of chemical treated Penicillium sp, Fusarium sp and Aspergillus niger (K1, K2 and K3) as biosorbent of chromium (III) and chromium (VI) from K.Cr207 and CrCls solution. Biosorption of chromium by the respective biomass was measured using spectrophotometer with Diphenil Carbazid method. As much as 0,1 g chemically treated biomass were added to 75 ml of K,Cr207 dan CrCls; solution. After six hours, the biomass was separated by filtering the solution and followed by measurement of the chromium contents in the filtrate. The differences of chromium contents which were measured before and after application showed chromium absorbed by biomass. The collected data were analysed using One Way Analysis of Variance following a randomized design. The differences between means were tested using Duncan New Multiple Range Test. The result of the study showed that Penicillium sp was significantly higher (P<0,05) to absorb chromium (VI) than that of Aspergillus niger. There were no significant differences between the ability of Fusarium sp, Penicillium sp and Aspergillus niger to absorb chromium (VI) (98,89% versus 99,50% and 98,48%). The capability of Fusarium sp to absorb chromium (III) was higher (P<0,05) compared to Penicillium sp and Aspergillus niger (82,39% versus 64,35% and 55,80%). It can be concluded that chemicaly pretreated Penicillium sp, Fusarium sp and Aspergillus niger could be used as chromium of KxCr2(7 dan CrCls absorbent. (Key words: Penicillium sp, Fusarium sp, Aspergillus niger, Chemical treatment, Biosorption, Chromium, K-Cr207 dan CrCl3 solution)

Kata Kunci : Jamur Penicillium sp. Fusarium sp, Aspergillus niger., Pra perlakuan kimia, Biosorpsi, Krom, Larutan K;Cr207 dan CrCls