#TITLE_ALTERNATIVE#

• Main Author: HALIM, ABDUL
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/24891
• Institution: Institut Teknologi Bandung

<p align="justify">Naturally, groundwater has carrying capacity for self purification mechanism. However, if the pollutants are accumulating too much, the carrying capacity can be exceeded and causing ground water to be contaminated. Lack of knowledge and willingness of the community to keep the ground water are causing the poor quality of many of groundwater contaminated by household waste. Causal factor of groundwater quality reduction is use of septic tanks. Septic tanks are building domestic wastewater treatment that has been chosen for easier and more economical design, construction, and maintenance. The concept of High-Performance Biofiltration (HPB) is the latest development of intermittent sand filter (ISF) technology. Intermittent Cocopeat Filter reactor design adopting Intermittent Sand technologies Filter (ISF) with Hydraulic Loading Rate (HLR) design is 10 times larger than the ISF. Variation of depth ratio to reactor diameter, feeding dose and time cycling were conducted in this research. Generally, the performance of the reactor is influenced by feeding dose with 3.15% of BOD removal, 55.21% of COD removal, 14.49% of TOC removal, and 59.28% of TSS removal. Optimum conditions was obtained on the depth ratio of 16 per diameter reactor, 450 ml volume of dose feeding and 8 minutes of cycling time with a each value of BOD, COD, TOC and TSS removal efficiency amounting to 83.8%, 78.24%, 75.47% , and 84.4% and the content of BOD, COD, TOC, and TSS respectively of 38.8 mg/L, 80.97 mg/L, 26 mg/L and 51 mg/L. A planning as recycled water for water quality class IV contained in Government Regulation no. 82/2001 about water quality and water pollution control can’t be used because value of BOD was still above the standard.<p align="justify">