Study Recycling Effluents of Hospital WWTP with Reverse Osmosis

Abstract

Reverse osmosis (RO) membrane technology has been used extensively in seawater desalination, drinking water production, brackish water treatment, and industrial wastewater treatment, whereas in hospital wastewater treatment plants (WWTP) has not been much studied. Effluents of hospital WWTP can still be reprocessed with filtration technology to improve its quality, so that it can replace the role of clean water that has been taken from ground water, and can even save water use by the Regional Water Supply Company. This study aims to examine the performance of reverse osmosis (RO) technology for recycling effluents of hospital WWTP. The results showed that the reverse osmosis (RO) system with a polyamide membrane proved to be effective for recycling effluents of hospital WWTP. The value of the concentration of processed water (product) RO when viewed from the TDS (Total Dissolved Solid) and COD (Chemical Oxygen Demand) parameters has decreased and meets clean water quality standards according to existing regulations. Increased operating time causes a decrease in permeate flux. Increased operating pressure causes increased permeate flux and rejection efficiency. The use of RO systems with polyamide membranes is expected to be the best choice for recycling effluents of hospital WWTP under current conditions.