Mohammad Mahmudi, Wahyu Dwi Anggraini and Evellin Dewi Lusiana
Abstract
Batik is a heritage culture of Indonesia which gains high demand in market. Industry of Batik used a high amount of water and created environmental pollution due to its wastewater. The pollution arises from Batik-making process whereas the colouring material contains heavy metals such as chromium (Cr). Aim of this research was to determine the potency of coconut husk, which is a by-product of coconut, as activated carbon or adsorbent of Cr in Batik wastewater. An experimental study and was conducted to assess the effect of different adsorbent dosage and contacting time to Cr concentration in Batik wastewater. The results indicated that there were no different effect of adsorbent dosage to Cr removal. However, the contacting time showed that 30 minutes was the optimum level to reduce Cr content in Batik wastewater