A solar-powered reverse osmosis system for high recovery of freshwater from saline groundwater
A solar-powered reverse osmosis system for high recovery of freshwater from saline groundwater
复制标题
太阳能反渗透系统可从含盐地下水中高效回收淡水
DOI:
10.1016/j.desal.2010.12.010
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发表时间:
2011
期刊:
影响因子:
9.9
通讯作者:
Davies P
中科院分区:
文献类型:
--
作者:
Davies P
Desalination of groundwater is essential in arid regions that are remote from both seawater and freshwater resources. Desirable features of a groundwater desalination system include a high recovery ratio, operation from a sustainable energy source such as solar, and high water output per unit of energy and land. Here we propose a new system that uses a solar-Rankine cycle to drive reverse osmosis (RO). The working fluid such as steam is expanded against a power piston that actuates a pump piston which in turn pressurises the saline water thus passing it through RO membranes. A reciprocating crank mechanism is used to equalise the forces between the two pistons. The choice of batch mode in preference to continuous flow permits maximum energy recovery and minimal concentration polarisation in the vicinity of the RO membrane. This study analyses the sizing and efficiency of the crank mechanism, quantifies energy losses in the RO separation and predicts the overall performance. For example, a system using a field of linear Fresnel collectors occupying 1000m2of land and raising steam at 200°C and 15.5bar could desalinate 350m3/day from saline water containing 5000ppm of sodium chloride with a recovery ratio of 0.7.
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DOI:
--
发表时间:
1997
期刊:
影响因子:
--
作者:
Oliver Headley
通讯作者:
Oliver Headley
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
J. Libert;A. Maurel
通讯作者:
A. Maurel
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
F. Trieb
通讯作者:
F. Trieb
影响因子:
1.1
作者:
Davies P
通讯作者:
Davies P
DOI:
--
发表时间:
1982
期刊:
影响因子:
--
作者:
A. B. Riedinger;C. Hickman
通讯作者:
C. Hickman