The decolorization effect by Aspergillus sp. 3 on Goldfish opercular beats

Abstract

Batik effluent had high toxicity to aquatic organisms. Dye decolorization is a process used to reduce color density. Fungi which used for decolorization was Aspergillus sp 3. This study aimed to investigate the ability of fungi on decolorization of 3 kinds of batik effluents (Indigosol Green dye, Indigosol Purple dye, and Naphtol Black dye) and to investigate the ability of fungi on reducing TDS level. The study was also investigated the initial toxicity of batik effluents to Goldfish (Cyprinus carpio). Decolorization was measured by spectrophotometry, the pH value was measured by pH meter, and the TDS value was measured by TDS meter. In addition, the decolorized batik effluent was tested for toxic effect on C. carpio by total opercular beats. Decolorization assay showed that Aspergillus sp. 3 had the ability to decolorized only 2 kinds of batik effluents. The decolorization percentage of Indigosol Purple was 60.015% and Naphtol Black was 56.679%. The pH after treatment decreased from 8.5–9 to 5.3–6. The range of pH value of Indigosol Green, Indigosol Purple, and Naphtol Black 5.3–6. Besides that, Aspergillus sp. 3 also had the ability to reduce the TDS level in the effluent. The TDS level on Indigosol Green, Indigosol Purple, and Naphtol Black as 4,965%, 25,307%, and 15,129%, respectively. Initial toxicity assay of effluent to C. carpio showed that there was a difference of total opercular beats, which exposed by decolorized and before decolorized batik effluent. The total opercular beats of C. carpio on decolorized batik effluents showed high value than before decolorized batik effluents. It can be concluded that Aspergillus sp. 3 had the ability to decolorize and decreasing the initial toxicity of Indigosol Purple batik effluents on C. carpio.

Textile Wastewater Decolorization by Pleurotus ostreatus in Organic Material Board Media

“…The bond supports the formation of color, so that if the bond is broken, the dyes can be removed (Coulibaly et al, 2003). It was proven in the research of Dewi et al (2019b), that P. ostreatus colonized on sawdust base secreted LiP, MnP, Lac, with an activity of 12938.60, 200.43, 9.714, U/l, respectively.…”

“…Especially the isolate fungi Aspergillus sp. 3, has been shown to reduce the initial toxicity of batik effluents in Goldfish (Cyprinus carpio) (Dewi et al., 2019b). This occurs because the decolorization of the effluent by fungi produces harmless compounds such as benzene compounds that have been decomposed into simple compounds .…”

effectiveness of indigenous local microorganisms in degrading hexavalent chromium (Cr(VI)) in Batik liquid waste

“…Batik liquid waste is taken before processing, after processing, and after being discharged into the waters (discharged into the environment) have varying levels of chromium, and all three still exceed the threshold for the quality standard of textile industry wastewater. This is evidenced by the results of measurements of chromium levels in several batik industries in Indonesia such as the batik industry in Solo before processing has an average chromium content of 16.6747 mg/L, after processing the concentration becomes 10.1181 mg/L, and after being disposed of in The river water flow which is 2 km from the factory has a concentration of 7.6277 mg/L 6 , while the batik industry in Solo specifically, such as in Laweyan, which before processing has a chromium content of 74.298 mg/L 20 , batik industry wastewater in Kauman Tulungagung before processing has a chromium content of 2.3 mg/L 15 , batik liquid waste in Lampung before processing had a chromium content of 4.6 mg/L 27 , batik liquid waste in Sokaraja, Banyumas before processing was 1.1 mg/L 5 and Pekalongan batik wastewater before processing 0.645 mg/L 24 , so that the levels of hexavalent chromium (Cr(VI)) contained in batik wastewater have levels that exceed the standard limits for waste quality provisions in industrial activities and the Long-term, this water pollution can damage the ecosystem of aquatic bodies, because the presence of B3 waste in the environment can cause toxicity such as damage to aquatic ecosystems, death of aquatic organisms, to toxicity to the human body such as mutagenic, teratogenic and carcinogenic 28 . Trivalent chromium causes respiratory and nervous system disorders, and hexavalent chromium (Cr(VI)) can be carcinogenic and is categorized as the most toxic heavy metal according to the Agency for Toxic Substances and Diseases Registry (ATSDR) 7 .…”