Pilot trial of membrane distillation driven by low grade waste heat: Membrane fouling and energy assessment

被引:197
作者
Dow, Noel [1 ]
Gray, Stephen [1 ]
Li, Jun-de [1 ]
Zhang, Jianhua [1 ]
Ostarcevic, Eddy [2 ]
Liubinas, Audra [3 ]
Atherton, Paul [4 ]
Roeszler, Gareth [5 ]
Gibbs, Andrew [6 ]
Duke, Mikel [1 ]
机构
[1] Victoria Univ, Coll Engn & Sci, Inst Sustainabil & Innovat, POB 14428, Melbourne, Vic 8001, Australia
[2] Integrated Elements, 15 Deasons Rd, Stuart Mill, Vic 3477, Australia
[3] City West Water, Locked Bag 350, Sunshine, Vic 3020, Australia
[4] GWMWater, POB 481, Horsham, Vic 3402, Australia
[5] Water Res Australia, GPO Box 1751, Adelaide, SA 5001, Australia
[6] Ecogen Energy, Newport, Vic 3015, Australia
关键词
Membrane distillation; Industrial water treatment; Water reuse; Pilot trial; Waste heat; SEAWATER DESALINATION; WATER DESALINATION; MD PROCESS; PERFORMANCE; SOLAR; MODULES; ENHANCEMENT; SYSTEMS; PLANT; CFD;
D O I
10.1016/j.desal.2016.01.023
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Direct contact membrane distillation (DCMD) supplied with waste heat was demonstrated for water recovery from saline demineralisation regeneration waste. The pilot plant was located at a gas fired power station which provided the <40 degrees C waste heat and wastewater to the DCMD system with 0.67 m(2) of membrane area. The trial was operated over three months without replacing the membranes or module and achieved 92.8% water recovery. Flux was approximately 3 L/(m(2).h) and was dependant mostly on the waste heat temperature being supplied. Membrane fouling affected flux and thermal energy demand only at the very end of the trial. The system produced a high quality distillate product with average 99.9% dissolved solids rejection. Small amounts of ammonia and carbon dioxide however were found in the permeate. Membrane analysis post-trial revealed fouling was principally inorganic scale but organic matter on the membrane was also evident. Permeate side fouling was also observed, attributed to corrosion of the cooling heat exchanger. Based on the available energy for a continuously operating 500 MW (electric) rated power station, the treatment potential was estimated at up to 8000 kL/day, which is practical for supplying water to numerous industrial, residential or agricultural sites. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:30 / 42
页数:13
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