Feasibility of Constructed Wetland Using Coagulation Flocculation Technology in Batik Wastewater Treatment
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Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Surabaya, Ketintang, Surabaya, 60231, Indonesia
Publication date: 2020-08-01
Corresponding author
Erina Rahmadyanti   

Universitas Negeri Surabaya
J. Ecol. Eng. 2020; 21(6):67-77
The batik industry became a double-edged sword for the development of Indonesia. While it plays a significant role in economy, it also contributes to the environmental pollution, which is mostly caused by the lack of appropriate technology for the wastewater treatment in small industries. This study aims at determining the feasibility in combining the coagulation-flocculation technology using Moringa oleifera seeds powder (MOSP) with horizontal subsurface constructed wetland (HSSFCW) in treating the batik wastewater. The results show that combining 750 mg/L MOSP in the coagulation flocculation technology with 5 days retention time on HSSFCW optimally removed 89.33% of the chemical oxygen demand (COD); 98.11% of total suspended solids (TSS); and 92.05% of fat, oil, and grease (FOG). Moreover, it increases the pH conditions up to 7.33. Despite its high removal efficiency, this technology combination is not feasible in the batik wastewater treatment due to inability to meet the standard effluent of the discharged wastewater. Therefore, adding pre-post treatment to this technology implementation is recommended to obtain the standard effluents of wastewater discharged.
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