Method for strengthening duckweed to repair copper-polluted water body

• Main Authors: YU YANYI, YU CHANG, WU JIETING, BAO HONGXU, WANG XIANGYU, GAO TIAN, YANG XUEJIE, YAO RUYI
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2022
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention relates to the field of wastewater treatment, in particular to a method for strengthening duckweed to repair copper-polluted water. Planting duckweed in a diluted improved Hoagland nutrient solution for adaptive culture, and taking multiple clusters of duckweed with good growth vigor for later use after 7 days; the method comprises the following steps: applying an exogenous enhancer into a water body containing copper ions, and putting duckweed into water for growth culture; after culturing for 14 days, removing the duckweed from the polluted water body, and planting the duckweed again; and planting the duckweed again and repeating the steps until the copper content of the copper-polluted water body in the culture vessel is reduced to the national water quality requirement standard. The method is easy to operate, has good economic benefits and social benefits, and is beneficial to large-scale popularization and application. 本发明涉及废水处理领域，具体涉及一种强化浮萍修复铜污染水体的方法。将浮萍种植在稀释后的改良霍格兰营养液中进行适应性培养，7天后取多簇长势良好的浮