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Multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes

An in-situ repair and functional module technology, applied in the field of water pollution control, can solve problems such as poor applicability, low treatment efficiency, and single function, and achieve the effect of strengthening self-purification ability, overcoming single efficiency, and improving marketability

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology solves the problems of single function, poor applicability and low treatment efficiency of the traditional plant floating island structure, and realizes the in-situ and efficient treatment of heavily polluted venous water systems

Method used

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  • Multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes
  • Multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes
  • Multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Taking a river in Liaoning as an example to carry out experimental research, the river has a total length of 140 km, an average width of 19 m, and a depth of 1.3 m. There used to be a chemical industrial park in the upstream of this river, and the industrial sewage was directly discharged into the river. Now that the industrial park has been relocated, only a few enterprises are still discharging sewage into the river. The downstream of the river has rural domestic drainage, as well as individual small enterprise drainage. The COD and total phosphorus concentrations in the water are 64.5-82.1 mg / L and 2.69-3.56 mg / L, respectively. The experimental section is a bypass system of the river with a length of about 1.3km. In the polluted river channel, the multi-functional modular floating island with in-situ restoration of water body is adopted, and the waterscape floating island module, the flexible packing floating island module, the aeration floating island module, the p...

Embodiment 2

[0032] Taking a certain river as an example to verify the effect, the tributary river is 6 km long, with an average width of 4 m and a depth of 0.6 m. There are several farms in the upper reaches of this river, and part of the farming wastewater is directly discharged into Hanoi. Riverside NH 3 -N ranged from 55.8 to 88.3 mg / L, phosphate radicals ranged from 10 mg / l, and COD varied from 50 to 110 mg / L. DO in the water was close to 0 mg / L, and the water turned black and smelly. Set overflow weirs in the downstream of the polluted river to keep the upstream water level stable. In the upstream polluted river channel, flexible packing floating island modules, aeration floating island modules, power floating island modules (external power supply), functional packing floating island modules, and waterscape floating island modules are used in sequence. Connecting plugs are set between these modules. Constitute a combined floating island group. Modified clinoptilolite particles wit...

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Abstract

The invention relates to a multifunctional modularized floating island for in-situ restoration of polluted rivers and lakes. The floating island consists of five functional modules including a waterscape floating island module, a flexible filler floating island module, an aeration floating island module, a power supply floating island module and a functional floating island module. Each functional module is formed by floating beds in the same shape and size; different functional components are matched on the floating beds respectively so as to form the above functional modules. 2-5 different functional modules are selected in proportions according to the water quality difference and area load of the polluted river, and are optimally combined, thus various micro-environments are formed along the water flow direction, the self-cleaning ability of rivers and lakes are prompted, and the COD (chemical oxygen demand) and ammonia and nitrogen of the polluted water can all reach the V-type standard of surface water. With the adoption of the technology, the problems of single function, poor applicability and low water quality improving efficiency of the plant floating island structure in the prior art are solved, and the in-situ high-efficiency water quality improvement of water in polluted rivers and lakes is achieved.

Description

technical field [0001] The invention relates to a multifunctional modular floating island for in-situ restoration of polluted rivers and lakes, and belongs to the technical field of water environment pollution control. Background technique [0002] In recent decades, with the rapid development of my country's social economy, cities as an organic whole have released more and more pollutants, resulting in increased pollution of urban rivers and lakes, which are the main receiving water bodies and transport "vessels" of pollutants. Most urban rivers And the lake loses its water supply function and becomes an urban "venous" water system. Due to the long-term impact of various pollutants, the original ecological system of urban venous rivers has been completely destroyed. A large number of algae often breed in rivers and lakes, the water body turns black and smelly, and mosquitoes breed, which seriously threatens the living environment and surrounding areas of urban venous water s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02A20/402Y02W10/10Y02W10/37
Inventor 彭剑峰宋永会高红杰任兆勇唐小雨
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