Improvement of Batik Wastewater Quality Using Biosorption Process

Sokaraja Batik Center directly releases wastewater from their plant into the Wangan River and because of the presence of some organic matters and heavy metals in the wastewater, this river may become polluted. However, the pollutant compounds in the batik wastewater can be separated through the use of the biosorption process. For the purpose of this research, the experimental method was implemented to assess the effectiveness of treating wastewater using the biosorption process. The result of the research revealed that biosorption using S. cinerea and P. ostreotusbaglog waste in a tea bag as the biosorbent is effective. It also revealed that this process can decrease the pollutant matters in batik wastewater by 70, although the BOD, COD, and TSS may not meet up with the threshold according to Regional Regulation of Central Java Province No. 5 of the year 2012. However, this treatment method has not yet been accepted by craftsmen because of the financial implication and the difficulties in its preparation.