Color and Chemical Oxygen Demand Removal of Strobilanthes cusia Fermentation and Natural Indigo-based Batik Dyeing Wastewater

Cepi Kurniawan; F. Widhi Mahatmanti; Johar Mahfudz; Ulya Qonita; Rizki Nugraha; Hadariah Bahron

doi:10.15294/ijrie.v2i1.48688

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Affiliations

Cepi Kurniawan
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia

F. Widhi Mahatmanti
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia

Johar Mahfudz
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia

Ulya Qonita
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, Indonesia

Rizki Nugraha
Textile Chemistry Study Program, Bandung Polytechnic of Textile Technology, Indonesia

Hadariah Bahron
Coordination Chemistry Group, Faculty of Applied Science, Universiti Teknologi MARA, Malaysia

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Color and Chemical Oxygen Demand Removal of Strobilanthes cusia Fermentation and Natural Indigo-based Batik Dyeing Wastewater

Cepi Kurniawan ,
F. Widhi Mahatmanti ,
Johar Mahfudz ,
Ulya Qonita ,
Rizki Nugraha ,
Hadariah Bahron

Vol 2 No 1 (2021): June 2021

DOI 10.15294/ijrie.v2i1.48688

Submitted: Jul 30, 2021

Published: Jan 6, 2022

Abstract

Strobilanthes cusia is the plant which has been cultivated at the District of Temanggung, Indonesia and used as a natural source for indigo dye. The use of natural dyes for Batik Industries are expected to prohibit environmental damage. However, the wastewater generated from the indigo extraction and Batik dyeing process is still showing high COD value (768-3.893 ppm). In the present study, color and COD removal from Strobilanthescusia processing (settling pond) and Indigo-based Batik dyeing (equalization tank) wastewater have been studied. The treatment involving the use of FeSO₄, Alum, and Cyclea Barbata Miers. powder (CBM) as coagulation-flocculation agents. Alum was efficiently reduced color up to 97% and 93% for settling pond and equalization tank effluent, respectively. The highest COD removal efficiencies of 87 % and 63% were observed for settling pond and equalization tank effluent, respectively.