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Tidal river sewage treatment and aquiculture integrated system

A technology for sewage treatment and aquaculture, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, fish farming, etc., can solve the problem of unresolved reduction of rich nutrients, unable to increase dissolved oxygen in water, and purify The effect is not obvious, etc., to achieve the effect of no secondary pollution, low cost, and reduction of algal blooms

Inactive Publication Date: 2012-02-15
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still different problems in the above-mentioned methods: ① The problem of the reduction of nutrient substances in relatively large rivers with tidal phenomena is not solved
②Purely relying on animals to restore polluted water, the purification effect is not obvious, and the dissolved oxygen in the water cannot increase
③The death of animals will cause more pollution to the water body and other problems

Method used

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  • Tidal river sewage treatment and aquiculture integrated system
  • Tidal river sewage treatment and aquiculture integrated system
  • Tidal river sewage treatment and aquiculture integrated system

Examples

Experimental program
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Effect test

Embodiment 1

[0033] For a village with 100 households, the river is 20 meters wide and 3 meters deep. The river flows through the front of the village and carries 20% of the village's sewage. The water flow is 1 meter per minute, and the river is a tidal channel. Then select a 500-meter section of river within 100 meters downstream of the sewage outlet of the village, with 150 meters for each of the aquatic plant floating carpet areas on both sides, 50 meters for emergent plants, floating plants, and submerged plants, and 200 meters for the mussel breeding area.

Embodiment 2

[0035] For a village with 100 residents, the river is 20 meters wide and 3 meters deep. The river course flows through the front of the village and carries 20% of the village’s sewage. The water flow is greater than 1 meter per minute and less than 2 meters per minute. The river course is a tidal channel. Then select a 1000-meter river course within 200 meters downstream of the sewage outlet of the village, with 300 meters for each of the floating carpet areas of aquatic plants on both sides, 100 meters for emergent plants, floating plants, and submerged plants, and 400 meters for the mussel breeding area.

Embodiment 3

[0037] For a village with 100 households, the river is 20 meters wide and 3 meters deep. The river flows through the front of the village and carries 20% of the village's sewage. The water flow is less than 1 meter per minute, and the river is a tidal channel. Then select a section of 300-meter river channel within 100 meters downstream of the sewage outlet of the village, with 90 meters of aquatic plant floating carpet areas on both sides, 30 meters for emergent plants, floating plants, and submerged plants, and 120 meters for mussel breeding areas.

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Abstract

The invention provides a tidal river sewage treatment and aquiculture integrated system which comprises aquaticplant floating blanket zones and a freshwater mussel culture zone arranged in the tidal river, wherein the freshwater mussel culture zone is arranged in the middle of the tidal river; and the aquaticplant floating blanket zones are arranged at two sides of the freshwater mussel culture zone. The aquaticplant floating blanket zones are divided into an emergent aquatic plant zone, a floating plant zone and a submerged plant zone according to the decontamination capability. Since emergent aquatic plants, floating plants and submerged plants are sequentially cultured in a riverway disclosed by the invention, the riverway is progressively purified layer by layer. In addition, different aquaticplants are subjected to reasonable companion planting and have purification capability all year round. The mussels in the freshwater mussel culture zone in the invention not only can be used for filtering phytoplankton and reducing algal bloom, but also can be used for ensuring that no heavy metal substances exist in meat of the mussels.

Description

technical field [0001] The invention relates to the fields of sewage treatment and aquaculture, in particular to a tidal river sewage treatment and aquaculture comprehensive system. Background technique [0002] In recent years, some lakes, rivers and other waters have been plagued by environmental pollution, and the eutrophication of water bodies has become increasingly serious: the original submerged vegetation has declined, and the ecological environment has been severely damaged. my country's per capita water resources are small, and the spatial and temporal distribution is unbalanced, which makes the existing contradiction between supply and demand of water resources more prominent. At present, the methods of purifying polluted water, including mechanical filtration, physicochemical adsorption, chemical algae killing, and adding microbial agents, have been applied in water purification and ecological restoration in my country. However, physical and chemical methods are...

Claims

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Application Information

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IPC IPC(8): A01K61/00C02F3/32
CPCY02A40/81
Inventor 何培民杜霞霍元子韩芳李春霞饶涛孙鹏涛邵路畅
Owner SHANGHAI OCEAN UNIV
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