A symbiotic system of aquatic plants for river ecological restoration

• Main Authors: Peng, Shitao, Jia, Jianna
• Format: Patent
• Language: English
• Published: 01.10.2020
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

A symbiotic system of aquatic plants for river ecological restoration includes a submerged plant area, a floating plant area and an emergent plant area planted in the same water body, wherein the plant density of each area was 60 clumps/m2 of Hydrilla varticillata in the submerged plant area, 15 plants/m 2 of water lily in the floating plant area and 30 plants/m 2 of celandine in the emergent plant area, respectively. The planting area ratio of the emergent plant area, the floating plant area and the submerged plant area is (61-63):(13-18):(21-24), and 280% of the water surface was covered by aquatic plants in emergent plant area, floating plant area and submerged plant area; wherein the aquatic plant symbiosis system used for river ecological restoration is formed by optimizing planting scheme of submerged plants, floating plants and emergent plants, which has a good degradation effect of COD, ammonia nitrogen, total nitrogen and total phosphorus, as well as increasing the dissolved oxygen in river. Besides the system will not cause secondary pollution and has a certain degree of appreciation.