EVALUASI KINERJA SISTEM PENGOLAHAN AIR MENGGUNAKAN BIOMEMBRAN DALAM MENGOLAH AIR TERCEMAR (STUDI KASUS : SUNGAI CIKACEMBANG)

• Main Author: Wahyuni, Sri
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/35175
• Institution: Institut Teknologi Bandung

Biomembrane water treatment plant has been used to process river water in order to achieve the water quality of standard class II on the Cikacembang river. Over time, the facility has also developed into a water treatment plant system that serves the needs of the local people. The treatment plant consists of biomembrane and the supporting units, such as aeration container tanks and sand filter unit. The purpose of this study is to analyse the water quality in order to assess the performance of the biomembrane water treatment plant. The method used in this research is conducting analysis on water input of installations and water output or the processed water from nine major point, namely the inlet, outlet A, tank 2, tank 3, tank 4, the tank 5, tank 6, the tank 10 and the last outlet B with three variations of discharge flow. Afterwards, the quality of the water samples was compared with water quality standards based on the physics, chemistry and biology parameters. It should be noted that there are considerable incidences when comparing the ninth point and the Government Regulation No. 82 year 2001 for the category of water class II. It was inquired that there are several water quality parameters that has exceeded water quality standard class II; this parameters are: phenols (0.2245±0.3069 mg/L), fecal coliform (9.3x104±2.1x105 Total/100 mL) and total coliform (8.98x105± 2.42x106 Total/100mL). As for the outlet B outcome is ready to be distributed compared with Health Ministry Regulation No. 416 year 1990 for the category of clean water and drinking water, Health Ministry Regulation No. 492 year 2010 for drinking water and PP 82 of 2001 category of water class I. Based on the result, water comply to clean water standard rather than drinking water standard. But for clean water also contained several water quality parameters that has exceeded water quality standards is total coliform (2x104±3.46x104 Tot/ 100 mL ). In general, the performance of the biomembrane water treatment plant delivers a decent performance, given the flow variation of 0,5 m3/min, while viewed from average efficiency the largest removal efficiency of color (95.64%), turbidity (98.48%), Biochemical Oxygen Demand or BOD (94.06%), cyanide (95.53%) ammonium (93.33%), total coliform (95.32%) and fecal coliform (98.10%), while the smallest removal efficiency of hardness (11.67%), so we need additional units to increase the removal efficiency for these parameters.