Application of biofilm membrane bioreactor and Reverse Osmosis membrane to the treatment of fresh and partially stabilised leachate
by Chart Chiemchaisri, Sujirut Putthiwara, Adisorn Chanpeng
International Journal of Environmental Engineering (IJEE), Vol. 3, No. 3/4, 2011

Abstract: Membrane Bioreactor (MBR) with sponge cube media and reverse osmosis (RO) were investigated in laboratory scale. Fresh and partially stabilised leachate contained COD/N of 30 and 10 and BOD/COD of 0.7-0.9 and 0.4-0.7, respectively. Continuous and intermittent aeration modes were examined. COD and TKN removals were more than 90%. Highest nitrogen removal efficiency was achieved when aeration of 1 h on and 2 h off cycle were employed. The effluent from MBR was further treated in RO unit with average rejection efficiencies of 75% 97%, 94% and 99% for COD, NH₄⁺, SO₄²⁻ and PO₄³⁻, respectively.

Online publication date: Sat, 25-Apr-2015

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