Removal of cyanide from an artificial wastewater in constructed wetland system with Pistia stratiotes and C. Zizaniodes

Abstract Cyanide is one of the toxic materials in environment and included as a hazardous waste. One agro-industrial wastewater containing cyanide from tapioca industry. Various methods, including constructed wetlands, can reduce compounds wastewater. Some plants used wetlands technology include Pistia stratiotes C. zizanioides , L. This study aimed to analyse effect L media height on reduction for 15 days. The highest rate was treatment with ratio 1:1 concentration 1 mg/L vetiver grass 1:1, 3:1 1:3 0.1698 while lowest 0.2 0.0627 mg/L.