How to Optimize Marine Sand Desalination Process?

Recently, the demand for manufactured sand has surged dramatically. However, constrained by land resource limitations, natural sand resources are facing a severe shortage. As a result, abundant marine sand has emerged as a viable alternative. The traditional marine sand desalination process removes harmful substances from marine sand through fresh water rinsing and screening. However, this outdated desalination technology suffers from significant drawbacks: it wastes large amounts of fresh water resources, lacks systematic detection and evaluation of technical indicators after desalination, and often leads to incomplete desalination, which poses hidden safety risks to construction projects.

Drawing on mature international experience and technology, and adapting to domestic conditions, Zhongyu Dingli has proposed a reclaimed water-based marine sand desalination solution. As we all know, fresh water resources are extremely precious in many coastal cities facing water scarcity. Reclaimed water refers to treated wastewater that meets specific water quality standards, suitable for non-potable, miscellaneous uses within a defined scope. For concrete batching plants, reclaimed water sources include seawater, recycled and purified water from the plant, and collected rainwater. Using reclaimed water for marine sand desalination can significantly save fresh water resources.

The Specific Process of Reclaimed Water-Based Marine Sand Desalination:

1. Pre-Rinsing Desalination Effect Test: Before rinsing the marine sand, conduct a desalination effect test to determine the optimal sand-to-water ratio and desalination time, ensuring the marine sand meets the required desalination standards.

2. Two-Stage Desalination: First, use reclaimed water for primary desalination to remove part of chloride ions and other impurities from the marine sand. Then, use fresh water for secondary desalination. Through this two-stage process, produce desalinated marine sand that fully meets project requirements.

3. Wastewater Recycling: To address the issue of desalination wastewater discharge, recycle the desalination wastewater. During the recycling process, treat the water to remove chloride ions and other impurities before reusing it. This not only saves fresh water resources but also realizes waste recycling, turning desalination wastewater into a valuable resource.

The above is the fully automated marine sand desalination process integrating marine sand desalination, water treatment, and water recycling. We welcome customers from all over the world to visit and inspect our technology.