According to reports, the lead seal will soon seal the pliers and lead bags to "block" the ship's drain pipe valve, so that the ship can not discharge oil into the river. In the past, oily sewage was treated by the ship's own oil-water separator and discharged into the river after reaching the standard. After the seal, the oily sewage will be collected by the maritime departments of each port and concentrated on ships equipped with large oil-water separators. After treatment, they will be transported to the shore. At the same time, the sealed ship does not need to activate the oil-water separator, which not only protects the environment but also reduces the operating cost of the ship.
At present, the Chongqing section of the Yangtze River trunk has 12 ports, more than 380 water transport enterprises, and more than 10,000 ships sailing all year round. The ship produces 600,000 tons of oil per year in daily operations, which causes pollution to the water environment of the Three Gorges reservoir area.
Starting this month, Chongqing will implement more than 100 ships and port-operated ships with a displacement of more than 1,600 tons in the jurisdiction, and will expand the scope of the applicable seals in the future, and finally achieve zero emissions of ship oil pollution.
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