A kind of salt-tolerant plant constructed wetland system for treating eutrophic mariculture wastewater
By introducing salt-tolerant plants and modified mineral fillers into the constructed wetland system, combined with layered fillers and bow-shaped water flow design, the problems of insufficient salt tolerance of plants and filler blockage in high-salt environments are solved, pollutant removal efficiency is improved, and maintenance costs are reduced.
CN120247273BActive Publication Date: 2026-07-14SHANDONG INST OF SERICULTURE
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG INST OF SERICULTURE
- Filing Date
- 2025-05-19
- Publication Date
- 2026-07-14
Smart Images
Figure CN120247273B_ABST
Abstract
This invention provides a salt-tolerant plant-based constructed wetland system for treating eutrophic marine aquaculture wastewater. Specifically, it includes a lower layer of packing material composed of mineral materials, a middle layer of packing material composed of modified zeolite, sodium alginate-coated vermiculite, rice husk charcoal, oyster shells, coral sand, and diatomaceous earth, and a surface layer of packing material composed of intertidal sediment, intertidal raw water, coastal saline-alkali soil, and composite algae powder. The three packing materials, combined with the selection and breeding of salt-tolerant plants, the optimization of bow-shaped water flow, and the layered synergistic design, systematically solve the core problems faced by traditional constructed wetlands in treating marine aquaculture wastewater, such as poor salt tolerance, low adsorption efficiency, easy clogging, and high maintenance costs.
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