2008
DOI: 10.1139/s08-015
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Development and testing of a low sludge discharge membrane bioreactor for greywater reclamation

Abstract: A low sludge discharge membrane bioreactor (LSDMBR) for greywater reclamation was developed and tested in this study. LSDMBR was designed by combining an aerobic activated sludge process with an immersed membrane filtration process. LSDMBR offers the following advantages over conventional activated sludge processes. Firstly, LSDMBR has a high biomass concentration attributed to membrane filtration of the effluent and low sludge wasting, which results in reduced disposal costs. Secondly, LSDMBR provides for a f… Show more

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Cited by 5 publications
(5 citation statements)
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“…Lesjean and Gnirss (2006) challenged the MBR unit with an extremely low SRT of 4 d and low HRT of 2 d, and achieved similar results to those under normal conditions. On the other hand, Young and Xu (2008) observed a trend of slightly increasing performance as SRT decreased from 65 to 48 d. SRTs also showed its effect on nitrogen removal. A low food-tomicroorganism (F/M) ratio and a long SRT accounted for higher nitrifying rates andenhanced nitrogen removal efficiency (Fan et al 2000;Schmidt et al 2003).…”
Section: Operating and Control Parametersmentioning
confidence: 89%
See 1 more Smart Citation
“…Lesjean and Gnirss (2006) challenged the MBR unit with an extremely low SRT of 4 d and low HRT of 2 d, and achieved similar results to those under normal conditions. On the other hand, Young and Xu (2008) observed a trend of slightly increasing performance as SRT decreased from 65 to 48 d. SRTs also showed its effect on nitrogen removal. A low food-tomicroorganism (F/M) ratio and a long SRT accounted for higher nitrifying rates andenhanced nitrogen removal efficiency (Fan et al 2000;Schmidt et al 2003).…”
Section: Operating and Control Parametersmentioning
confidence: 89%
“…Starch (0.3750 g), dextrose (0.1755 g), peptone (0.1800 g), beef extract (0.1275 g), sodium carbonate (0.2250 g), sodium bicarbonate (0.1170 g), trisodium phosphate (0.0810 g), urea (0.2355 g), ammonium sulfate (0.1305 g), solid detergent (0.1500 g), liquid detergent (0.3000 g), and water (1000 g) (Young and Xu, 2008) 5. Toothpaste (6.0 mg/L), shower gel (0.05 mL/L), cleaner (0.1 mL/L), shower oil (0.05 mL/L), shampoo (0.013 mL/L), bubble bath (0.035 mL/L), urea (20.0 mg/L), NH 4 Cl (12.5 mg/L), and K 2 HPO 4 (2.5 mg/L) (Scheumann and Kraume, 2009) (Asano et al, 2007).…”
mentioning
confidence: 99%
“…The detection of faecal coliforms in the permeate was attributed to accidental contamination of the treated water in the distribution system (Merz et al, 2007). Young and Xu (2008) developed and tested a low-sludge discharge membrane bioreactor for greywater reclamation. This system was designed to operate at a high biomass concentration by reducing the sludge wasting rate.…”
Section: Membrane Bioreactormentioning
confidence: 99%
“…These sources include bathroom sinks, bathtubs, showers, laundry machines, and dishwashers (Ghaitidak and Yadav, 2013). Greywater mainly contains food particles, detergents, soap residues, oil/grease, and pathogens (Young and Xu, 2008). The actual characteristics vary considerably from source to source, and are largely influenced by the lifestyle of the occupants of a given building, their location, and the surrounding climatic conditions (Oteng-Peprah et al, 2018).…”
Section: Introductionmentioning
confidence: 99%
“…Membrane Treatment. For the reclamation of greywater, a low sludge discharge membrane bioreactor (LSDMBR) was developed and found to achieve a 95% removal of anionic surfactants, and 90% removal of 5-day biochemical oxygen demand (Young and Xu, 2008). Low installation space requirements and sludge discharge were determined to be key advantages of the LSDMBR system for greywater reclamation and reuse.…”
Section: Integrated Process Designmentioning
confidence: 99%