Submerged plant resourceful treatment method and device

Abstract

The invention belongs to the field of submerged plant resource utilization, and discloses a submerged plant resource treatment method and device. The device comprises a feeding device, a cutting crusher, a screw press, a pressed liquid storage pool and a composting device, and optionally comprises a submersible sewage pump and a hydrolysis acidification pool, the feeding equipment, the cutting crusher and the screw press are connected in sequence; the screw press is provided with a filtrate outlet pipeline and a filter residue outlet pipeline; a filtrate outlet pipeline is connected with the squeezed liquid storage pool; the filter residue outlet pipeline is connected with the composting equipment; the submersible sewage pump is arranged in the pressed liquid storage pool and is used for feeding filtrate flowing into the pressed liquid storage pool from the screw press into the hydrolysis acidification pool. According to the method, submerged plant resources form a sustainable development closed loop, and the method conforms to the concepts of circular economy and green sustainable development.

Description

technical field [0001] The invention belongs to the field of resource utilization of submerged plants, and more particularly relates to a method and device for resource utilization of submerged plants. Background technique [0002] Submerged plants are a group of plants whose entire plants are submerged underwater. They belong to large herbaceous plants. In recent years, they have been widely used in water ecological restoration projects. Regular harvesting removes nutrients such as nitrogen and phosphorus in the system to reduce eutrophication in water bodies. purpose. Studies have shown that in the peak season of plant growth, the harvest of submerged plants can reach 1-3kg / m 3 , storage capacity 10,000 m 3 The annual harvest of submerged plants can reach 200-600 tons, and the subsequent resource utilization has gradually become a hot spot. At present, the main utilization methods are feed development and composting. However, for safety reasons, submerged plants harves...

AI Technical Summary

Problems solved by technology

However, for safety reasons, submerged plants harvested in natural water bodies with better water quality can be used for feed development, while submerged plants harvested in targeted reclaimed water areas (such as wetland parks) (the water rate is generally 80-90%, It cannot be directly used for composting, and the composting process is suitable for materials with low moisture content (60%-70%). There is no good way to solve the problem of follow-up treatment

[0003] Therefore, there is an urgent need to propose a method and device for resourceful treatment of submerged plants to solve the problem of subsequent treatment of submerged plants harvested in reclaimed waters.

Images