Sea water utilization projects are catching attention as the seawater utilization industry continues to grow. This paper analyzes the marine environment impact from different kind of sea water utilization projects such as seawater desalination, direct seawater utilization and seawater chemical resource extraction, and brieflypresents relevant countermeasures.
The principle of domestic seawater technology is to replace fresh water by seawater. This paper introduces the features and demonstration scale of domestic seawater technology. Considering the successful seawater toilet-flushing in Hong Kong, comparison and economic analysis on the cases of seawater, recycled water and tap water are done. The result shows domestic seawater technology is an economical and efficient water saving technology.
Sea water heat pump, which is an emerging ocean energy utilization technology with advantages of energy saving and environmental friendly, has great development potential in costal and islands areas. This article analyze the global development status, technologies and application prospects of sea water heat pump to give reference for its developments in costal and islands areas.
From the present situation of legislation on utilization of domestic sea water, this article reveals the contradictions between the shortage of water resources and legislation gaps, explore the necessity and feasibility of build up a framework for legislation on utilization of domestic sea water, which aspect is to promote the healthy development of domestic seawater industry.
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