US 12,012,711 B2
Ecological slope protection with efficient water purification function and ecological improvment method
Zheng Zheng, Shanghai (CN); Wenjing Sun, Shanghai (CN); Xingzhang Luo, Shanghai (CN); and Jian He, Shanghai (CN)
Assigned to FUDAN UNIVERSITY, Shanghai (CN)
Appl. No. 17/416,258
Filed by FUDAN UNIVERSITY, Shanghai (CN)
PCT Filed Mar. 28, 2019, PCT No. PCT/CN2019/080206
§ 371(c)(1), (2) Date Jun. 18, 2021,
PCT Pub. No. WO2020/147202, PCT Pub. Date Jul. 23, 2020.
Claims priority of application No. 201910037280.6 (CN), filed on Jan. 5, 2019.
Prior Publication US 2022/0074157 A1, Mar. 10, 2022
Int. Cl. E02B 3/12 (2006.01); C02F 3/32 (2023.01); C02F 103/00 (2006.01); E02B 3/14 (2006.01)
CPC E02B 3/122 (2013.01) [C02F 3/327 (2013.01); E02B 3/14 (2013.01); C02F 2103/007 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A novel ecological slope protection with efficient water purification function, built in a land-lake ecozone along the bank of a basin, wherein the body of the ecological slope protection (100) extends into the water of the basin, and has a flexible mattress (110) laid on the surface thereof; and an ecological filter pool (120) is provided below the flexible mattress (110);
wherein
the filling layer of the ecological filter pool (120) is laminated by four functional layers from top to bottom as follows:
the first layer, which is a soil layer (121) for absorbing heavy metals, degrading organics and removing nitrogen and phosphorus;
the second layer, which is an adjustment layer (122) composed of natural zeolite, limestone and activated carbon for supporting the soil layer (121), adsorbing and fixing heavy metals, nitrogen, phosphorus and organics;
the third layer, which is a biological layer (123) filled with bacteria-loaded activated carbon (so-called biological activated carbon) for adsorbing and fixing heavy metals, degrading organics and removing nitrogen and phosphorus;
the fourth layer, which is an ecological layer (124) filled with one or more of waste materials selected from fine sand, gravel, steel slag, cinder, construction waste and waste gypsum for filtering water and intercepting soil.