Biological purification treatment method for purifying cadmium-polluted irrigation water by using hyriopsis cumingii

• Main Authors: WANG SHUQIONG, ZHANG ZE, CHEN XINSHENG, ZOU YEAI, SHEN YANG, XIE YONGHONG, XU CHAO, ZHU HANHUA, HUANG DAOYOU
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; CHEMISTRY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; METALLURGY; NEW BREEDS OF ANIMALS; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; TRAPPING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a biological purification treatment method for purifying cadmium-polluted irrigation water by using hyriopsis cumingii, which comprises the following steps: 1) constructing an ecological pond: selecting a pond naturally distributed around a rice field, and carrying out capacity expansion, deepening and anti-seepage treatment on the pond; 2) selecting the variety of hyriopsis cumingii: selecting hyriopsis cumingii with complete shell, no damage, full soft part, hypertrophy mantle and no surgical nucleus implantation; (3) putting the hyriopsis cumingii into a mesh bag, namely cleaning the surface of the hyriopsis cumingii shell with a brush, and putting the hyriopsis cumingii shell into the strip-shaped mesh bag 4) hanging into an ecological pond: tying plastic empty bottles on each polyethylene rope at intervals to serve as floaters; the stocking density is determined according to the water amount of the ecological pond; 6) water quality requirement; (7) feeding management; 8) hydraulic