摘要 Water and energy are closely linked natural resources - the transportation, treatment, and distribution of water depends on low-cost energy; while power generation requires large volumes of water. Seawater desalination is a mature technology for increasing freshwater supply, but it is essentially a trade of energy for freshwater and is not a viable solution for regions where both water and energy are in short supply. This paper discusses the development and application of a renewable-energy-driven reverse osmosis (RO) system for water desalination and the treatment and reuse of aquaculture wastewater. The system consists of (1) a wind-driven pumping subsystem, (2) a pressure-driven RO membrane desalination subsystem, and (3) a solar-driven feedback control module. The results of the pilot experiments indicated that the system, operated under wind speeds of 3 m s-1 or higher, can be used for brackish water desalination by reducing the salinity of feedwater with total dissolved solids (TDS) of over 3 000 mg L-1 to product water or permeate with a TDS of 200 mg L-1 or less. Results of the pilot experiments also indicated that the system can remove up to 97% of the nitrogenous wastes from the fish pond effluent and can recover and reuse up to 56% of the freshwater supply for fish pond operation.
Abstract Water and energy are closely linked natural resources - the transportation, treatment, and distribution of water depends on low-cost energy; while power generation requires large volumes of water. Seawater desalination is a mature technology for increasing freshwater supply, but it is essentially a trade of energy for freshwater and is not a viable solution for regions where both water and energy are in short supply. This paper discusses the development and application of a renewable-energy-driven reverse osmosis (RO) system for water desalination and the treatment and reuse of aquaculture wastewater. The system consists of (1) a wind-driven pumping subsystem, (2) a pressure-driven RO membrane desalination subsystem, and (3) a solar-driven feedback control module. The results of the pilot experiments indicated that the system, operated under wind speeds of 3 m s-1 or higher, can be used for brackish water desalination by reducing the salinity of feedwater with total dissolved solids (TDS) of over 3 000 mg L-1 to product water or permeate with a TDS of 200 mg L-1 or less. Results of the pilot experiments also indicated that the system can remove up to 97% of the nitrogenous wastes from the fish pond effluent and can recover and reuse up to 56% of the freshwater supply for fish pond operation.
Clark C K Liu.
2013.
The Development of a Renewable-Energy-Driven Reverse Osmosis System for Water Desalination and Aquaculture Production. Journal of Integrative Agriculture, 12(8): 1357-1362.
[1]Abeysinghe D H, Shanableh A, Rigden B. 1996. Biofiltersfor water reuse in aquaculture. Water Science andTechnology, 34, 253-260
[2]FAO (Food and Agriculture Organizations of the UnitedNations). 2002. The State of World Fisheries andAquaculture 2002. FAO Fisheries Department, Rome.Feron P. 1985. The use of wind-power in autonomousreverse osmosis seawater desalination. WindEngineering, 9, 180-199
[3]Glueckstern P, Menahem P, Thoma A, Gelman Y. 2000.Desalination of brackish fish pond effluents - pilottesting and comparative economic evaluation ofintegrated UF-RO system vs. conventional systems.Desalination, 132, 55-64
[4]Hargrove L L, Westerman P W, Losordo T M. 1996.Nitrification in three-stage and single-stage floating beadbiofilters in a laboratory-scale recirculating aquaculturesystem. Aquaculture Engineering, 15, 67-80
[5]Jewell W J, Cummings R J. 1990. Expanded bed treatmentof complete recycle aquaculture systems. Water Scienceand Technology, 22, 443-450
[6]Kershman S A, Rheinlander J, Gabler H. 2002. Seawaterreverse osmosis powered from renewable energy sources- hybrid wind/photovoltaic/grid power supply for smallscaledesalination in Libya. Desalination, 153, 17-23
[7]Kiranoudis C T, Voros N G, Maroulis Z B. 1997. Wind energyexploitation for reverse osmosis desalination plants.Desalination, 109, 195-209
[8]Liu C C K, Park J W, Migita J, Qing G. 2002. Experiments of aprototype wind-driven reverse osmosis desalinationsystem with feedback control. Desalination, 150, 277-287
[9]Liu C C K, Park J W. 2008. Water Desalination.AccessScience, McGraw-Hill Companies, New York.Liu C C K. 2009. Wind-powered reverse osmosis waterdesalination for Pacific islands and remote coastalcommunities. In: Desalination and Water PurificationResearch and Development Program Report No. 128.U.S. Department of the Interior, Bureau of Reclamation,Denver, Colorado.
[10]Liu C C K. 2012. Feasibility study of renewable-energy forthe South Kona watershed irrigation project. In: ProjectReport for Belt Collins Hawaii, LLC.Mulder M. 1996. Basic Principles of MembraneTechnology. 2nd ed. Kluwer Academic, Dordrecht.
[11]Ng W J, Koh K, Ong S L, Sim T S, Ho J M. 1996. Ammoniaremoval from aquaculture water by means of fluidizedtechnology. Aquaculture, 139, 55-62
[12]Robinson R, Ho G, Mathew K. 1992. Development of areliable low-cost reverse osmosis desalination unit forremote communities. Desalination, 6, 9-26
[13]Thurston R V, Russo R C, Meyn E L, Zajdel R K. 1986. Chronictoxicity of ammonia to fathead minnows. Transactions ofthe American Fisheries Society, 115, 196-207
[14]Twarowaska J G, Westerman P W, Losordo T M. 1997.Water treatment and waste characterization evaluationof an intensive recirculating fish production system.Aquaculture Engineering, 16, 133-147
[15]Weiner D, Fisher D, Moses E J, Katz B, Meron G. 2001.Operation experience of a solar- and wind-powereddesalination demonstration plant. Desalination, 137, 7-13.