DESAIN RENCANA BANGUNAN IPAL PERUMAHAN SANGIA NIBANDERA CITY

Abstract

The increase in population is directly proportional to the increase in the housing and settlement sector.  This will also increase the consumption of clean water, resulting in an increase in domestic wastewater. Sangia Nibandera City housing discharges grey water directly into the river without any initial treatment, which has the potential to damage the environment. To address this issue, it is necessary to plan the construction of a WWTP before discharging the wastewater into the receiving body of water. This planning aims to determine the dimensions and design of the WWTP building in Sangia Nibandera City Housing. The planning method used in this project is a quantitative approach with a descriptive method that includes the conditions of wastewater disposal and planning land, calculation of wastewater discharge, determination of appropriate treatment technology, and calculation of dimensions and design of wastewater treatment installations. The research results of this wastewater treatment plant planning are planned to use the Anaerobic-Aerobic Biofilter treatment system (wasp nest media filter) with 6 stages of treatment. (a) Fat separator tank, measuring 1,0m x 0,8m x 1,5m with a residence time of 36 minutes, (b) Equalization tank, measuring 2,8m x 1,4m x 2,0m with a residence time of 5 hours. (c) Primary settling tank, measuring 2,2m x 1,2m x 2,0m with a residence time of 3 hours and 24 minutes. (d) Anaerobic tank, measuring 4,05m x 2,02m x 2,0m with a residence time of 10 hours and 36 minutes. (e) Aerobic tank, measuring 3,14m x 1,56m x 2,0m with a residence time of 6 hours and 18 minutes. At the final sedimentation tank, with dimensions of 2,2m x 1,2m x 2,0m and a retention time of 3 hours and 24 minutes, wastewater is produced at a rate of 27,84 m³/day. The total length and width of the tank are 16,44 meters and 2,32 meters, respectively, with a design area of 57,91 m².