Implementation of cleaner production in a natural dye batik industry SME: A way to enhance biodegradability of batik wastewater?

Elzavira Felaza, Cindy Rianti Priadi

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

Utilization of natural dye in batik industry is a preventive solution taken to avoid environmental problems. Natural dyes is used to substitute synthetic dyes, naphtol and indigosol which has COD of 10.000-20.000 mg/L. Although the solution has been taken, the wastewater quality still exceed the limits stated on Regulation of the Ministry of the Environment No.5/2014. The research aim is to generate cleaner production solution, specifically material substitution and process modification to increase biodegradability. The implementation is conducted six times. The research process is pre-assessment of natural dye and batik wastewater, implementation of material substitution in mordanting, washing material and process modification. Natural dyes used has BOD of 203-975 mg/L, COD 1.316-2.453 mg/L and BOD/COD 0,1-0,4. Through statistical analysis with 95% level of confidence, the results show no significant changes to BOD, COD, BOD/COD as well as colour reduction. The results of options implemented is BOD value of 99-450 mg/L, COD 402-1.102 mg/L, TSS 105-540 mg/L, colour 291-2.408 Pt-Co and BOD/COD 0,2-0,4. Hence, wastewater treatment is needed and unit designed for wastewater flow of 0,09 m3/day is anaerobic baffled reactor with the size of 0,6 m x 0,45 m x 0,5 m, HRT of 36,4 hour and SRT of 6 days.

Original languageEnglish
Article number05003
JournalMATEC Web of Conferences
Volume62
DOIs
Publication statusPublished - 28 Jun 2016
Event3rd International Conference on Chemical and Food Engineering, ICCFE 2016 - Tokyo, Japan
Duration: 8 Apr 20169 Apr 2016

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