Erina Rahmadyanti, Agus Wiyono
This study aims to determine the vegetation efficiency of Canna indica plants and rice husk as a VFCW substrate in the batik wastewater treatment process. The VFCW pilot is made of acrylic with a length, width and height of 0.5 x 0.5 x 0.5 m respectively. Rice husk is filled as substrate to a depth of 0.3 m. Canna indica is cultivated and acclimatized then be planted in VFCW with 6 plants / units. Batik liquid waste is flowed with a hydraulic loading rate of 0.15 m3/d and variations in hydraulic retention time for 3 days, 7 days, 15 days, 21 days, and 30 days using an intermittent system. The results showed Canna indica proved to have a significant effect (p <0.05) on the removal of all parameters consisting of pH, BOD, COD, TSS, ammonia, and heavy metals Cr. Optimal efficiency for all parameters occurred at 21 days HRT which obtained TSS removal values of 91.25%, BOD5 of 91.82%, COD of 89.15%, ammonia of 96.2%, and heavy metals Cr of 81.8%. Effluents produced through the construction of VFCW with rice husks as a substrate and vegetation of Canna indica are able to meet the standards set out in East Java Governor Regulation No. 72/2013. © 2020 Published under licence by IOP Publishing Ltd.
Faculty of Engineering, Department of Civil Engineering, Universitas Negeri Surabaya, Ketintang, Surabaya, Indonesia
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