The Effect of Detention Time and Plant Density to the Effectivity of Constructed Wetland as Wastewater Treatment Innovation in Small Industry of Cassava Chips

摘要

The sustainable development issue provides an enormous effect on the survival of small industries, especially in terms of waste treatment which is often discarded without any treatment processes beforehand. Cassava chips industry is one of the small industries which grows due to theavailability of excessive raw materials, meanwhile this industry produces the wastewater. This study aims to determine and analyze the effect of plant density and detention time of the effectivity of constructed wetland in treating wastewater produced by small industries of cassava chips.The plants used were Typha latifollia L with density of 16, 20 plants, and 24 plants/m~(2) and the detention time of 0, 3, 5, 10, and 15 days. The parameter of wastewater pollutants observed were BOD, TSS, NH_(3)–N, Phosphate, and CN. Conclusions derived from theprocessing of cassava chips wastewater using subsurface constructed wetland with Typha latifollia L plants was significant effect on the interaction between plant density and the detention time on the effectivity of sub-surface constructed wetland in the designated levels of BOD, TSS,NH_(3)–N, Phosphate, and CN in the wastewater of cassava chips using Typha latifollia L .