Update Artikelilmiah: 33997

KIKI GRACESSIANA PUTRI

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Abstrak (Bhs. Indonesia)

Sentra batik di Sokaraja merupakan kumpulan industri rumahan yang berkembang pesat. Sentra batik Sokaraja berkontribusi terhadap pencemaran air di Kali Wangan. Penelitian ini dilakukan dalam upaya pengganggulangan pencemaran limbah cair batik secara bioremediasi dengan memanfaatkan proses biologis menggunakan mikroorganisme. Rhizobakteria adalah bakteri rhizosfer yang hidup di sekitar akar tanaman. Tujuan penelitian adalah Mengetahui kemampuan Rhizobakteria isolat pasir besi dalam menurunkan kadar logam berat Cr limbah cair batik, mengetahui konsentrasi limbah cair batik yang yang mengalami penurunan logam Cr tertiggi oleh rhizobakteria asal pasir besi dan mengetahui pengaruh antara jenis isolat Rhizobakteria dan variasi konsentrasi limbah terhadap penurunan kadar logam berat Cr limbah cair batik.  Penelitian dilakukan secara eksperimental menggunakan Rancangan Acak Lengkap pola split plot. Konsentrasi limbah cair batik terdiri atas 5 taraf 0%, 10%, 20%, 30% dan 40%  sebagai main plot dan isolat Rhizobakteria terdiri atas 3 taraf yaitu Rb2, Rb3 dan Rb8 sebagai subplot. 
Hasil penelitian menunjukkan bahwa isolat rhizobakteria asal pasir besi memiliki kemampuan menurunkan kadar logam berat Cr berkisar 4,26%-79,23%, konsentrasi limbah yang paling efektif dalam menurunkan kadar logam berat Cr adalah konsentrasi 10%, dan tidak terdapat pengaruh interaksi antara jenis isolat Rhizobakteria dan variasi konsentrasi limbah terhadap penurunan kadar logam berat Cr.

Abtrak (Bhs. Inggris)

water pollution in Kali Wangan. The research was conducted by using the liquid waste of batik prevention method by bioremediation which use microorganism in the biological process. Rhizobacteria are rhizosphere bacteria that live outside plant nestled among the roots. The objectives of the research are to determine the ability of rhizobacteria isolates in reducing the level of heavy metal Cr in the liquid waste of batik, to know the most decreasing of liquid Batik waste concentration by rhizobacteria from iron sand, and to determine the effect between the type of Rhizobacteria isolates and variations in the concentration of waste on the reduction of heavy metal levels of Cr in batik liquid waste.. The research was conducted experimentally using the split-plot completely randomized design. The concentrate of liquid waste of batik consists of five levels: 0%, 20%, 30%, and 40% as the main plot and isolated Rhizobacteria consists of three levels: Rb2, Rb3, and Rb8 as the sub-plot. 
	The results showed that rhizobacteria isolates from iron sands had the ability to reduce heavy metal levels of Cr ranging from 4.26%-79.23%, the most effective concentrate of waste to reduce the level of heavy metal Cr is the 10% concetrate,and there is no interaction effect between the kinds of Rhizobacteria isolates and the variety of waste concentrate to the reduction of heavy metal Cr.

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