Biosystem Treatment Approach of Textile Dyeing Industry Wastewater

Abstract— Biosystem is composed of plants and microorganisms ecosystem. Biosystem is basin with the dimension of 200 long, 90 cm wide, and 60 cm deep. The basin is filled with 15 cm thick of gravel, 165 cm thick of coarse sand and 20 cm thick of gravel. Ipomeacrassialis is grown with its roots planted in the coarse sand layer. The highest Mixed Liquor Volatile Suspended Solid (MLVSS) concentration was 2010 mg/L, measured in 60 hours growth. Active suspension inoculatedinto biosystem improves the biosystem ability to decrease color intensity, COD, and BOD of the wastewater. Decrease in the color intensity begins to occur within 24 hours of treatment and reach levels below maximum allowed level after 60 hours treatment with the effectivity of 80.07%, meets the quality standard of textile was 5 mg/L. Decrease in COD was identified in 60 hours but still above the quality standard of textile was 70 mg/L and remained unchanged to 90 hours. Decrease in BOD levels began to look significant in 16 hours. However, up to 90 hours treatment time the BOD still above the quality standard of textile waste that was 50 mg/L. Microbe presents predominantly in biosystem was identified as Pseudomonas Pseudomonadanceae. Keywords—active suspension, Bio system, MLVSS, Pseudomonas Pseudomonadanceae. I