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Seawater Industry

Seawater Industry


Seawater Desalination Successful Case

  1. Background

  Desalination technology is a water treatment technology that has emerged in recent decades. Reverse osmosis technology has the characteristics of low water production energy consumption, wide application range, short construction period, and no geographical restrictions. With the deterioration of water resources shortage and the continuous water pollution, water conservation and cross-basin water transfer cannot fundamentally solve the crisis of water shortage in coastal cities. Humans have begun to ask for water from the sea. Reverse osmosis technology has been used to turn seawater into useful resources, providing coastal cities with sustainable water solutions.

  2. Project Information


The project is one of the key projects at the municipal level, which is supported by the state for energy conservation, emission reduction and the development of circular economy.

Project Location:Shandong China

Water Quality:Seawater near the city

Use of Permeate water:Tap water or irrigation

Time in Operation :2012


Type of Element:Seawater Desalination Elements

Operation Life Time:Over 5 years


  3、Cost: Benefit Analysis

  Analyze the cost of water produced by the desalination system: the cost of chemicals (flocculant, bactericide, scale inhibitor, reducing agent, etc.) is RMB 0.35 / t, electricity cost (pumps and other electrical equipment) is RMB 2.35  / t, labor and management cost is RMB 0.5  / t, and the total operating cost is RMB 3.2  / t. The cost per ton of water for desalination comes mainly from electricity costs, and power plants have a cost advantage in this regard. The project can save about 1.75 million tons of tap water each year, effectively alleviating the severe water shortage in the area, and has obvious environmental and economic benefits.

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