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咸潮是指沿海地区海水通过河流或其他渠道倒流进内陆区域后,水中的盐分仍然达到或超过250 mg/L 的自然灾害。咸潮一般发生在上一年冬至到次年立春清明期间,主要是由旱情引起,海平面升高和人类无序采沙也会加剧咸潮蔓延。海水的氯化物浓度一般高于5 000 mg/L。当咸潮发生时,河水中氯化物浓度从每升几毫克上升到超过250 mg,就会对人体造成危害,老年人、高血压、心脏病、糖尿病等患者不宜饮用;水中的盐度高会造成生产设备氧化,锅炉积垢;地下水和土壤内的盐度升高,会危害到植物的生存。珠海咸潮治理方案如下:
Saltwater refers to natural calamities in the water that still reach or exceed 250 mg / L after the seawater is backwashing into inland areas by rivers or other sources. Salty tides generally occurred during the winter solstice in the previous year and during the Ching Ming period in the following year, mainly caused by drought. Sea level rise and disorderly sand mining by human beings also exacerbated the spread of salty water. Chloride concentrations in seawater are generally above 5 000 mg / L. When salinity occurs, the chloride concentration in the river rises from a few milligrams per liter to more than 250 mg, which will cause harm to the human body. It is unfit to drink for the elderly, high blood pressure, heart disease and diabetes. The salinity in water will be high Resulting in the oxidation of production equipment, boiler scale; groundwater and soil salinity, will endanger the survival of plants. Zhuhai salty treatment programs are as follows: