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Aquatic plant purification system and device suitable for non-navigable river channel

An aquatic plant and purification device technology, applied in biological treatment devices, water pollutants, polluted waterway/lake/pond/river treatment, etc., can solve problems such as water pollution, achieve long service life, easy later management, A wide range of effects

Inactive Publication Date: 2019-02-22
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to effectively solve the problem of water pollution of unnavigable rivers in villages and towns or villages in economically developed areas, and propose an aquatic plant purification system and device suitable for unnavigable rivers

Method used

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  • Aquatic plant purification system and device suitable for non-navigable river channel
  • Aquatic plant purification system and device suitable for non-navigable river channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The length of the river is 1068m, the average width is 20m, and the water bodies TP, TN, NH 3 -N is category V, and one aquatic plant purification system and device shall be placed every 30m, and a total of 36 devices shall be placed. The device is prefabricated according to the method in the specific embodiment, and the planting area of ​​aquatic plants in each device is 4.41m 2 , Aquatic plants are planted on the device according to the ratio of 7:3 to plant orchard grass and polygrass, that is, the planting area of ​​orchard grass is 3.09m2 2 , the grass planting area is 1.32m 2 . It can reduce CODcr in river water from 29.57mg / L to 26.72mg / L, total phosphorus from 0.35mg / L to 0.21mg / L, ammonia nitrogen from 1.89mg / L to 1.37mg / L, and total nitrogen from 1.81mg / L drops to 1.23mg / L, reaching the Class IV water standard in the Environmental Quality Standard for Surface Water (GB3838-2002).

Embodiment 2

[0031] The length of the river is 1292.7m, the average width is 25m, and the water bodies are TP, TN, NH 3 -N is category V, and one aquatic plant purification system and device shall be placed every 30m, and a total of 43 devices shall be placed. The device is prefabricated according to the method in the specific embodiment, and the planting area of ​​aquatic plants in each device is 4.41m 2 , Aquatic plants are planted on the device according to the ratio of 7:3 to plant orchard grass and polygrass, that is, the planting area of ​​orchard grass is 3.09m2 2 , the grass planting area is 1.32m 2 . It can reduce CODcr in river water from 28.26mg / L to 25.13mg / L, total phosphorus from 0.39mg / L to 0.26mg / L, ammonia nitrogen from 2.3mg / L to 1.28mg / L, and total nitrogen from 1.98mg / L dropped to 1.33mg / L, reaching the Class IV water standard in the Environmental Quality Standard for Surface Water (GB3838-2002).

Embodiment 3

[0033] The length of the river is 2483m, the average width is 21m, and the water bodies are TP, TN, NH 3 -N is inferior to category V, and one aquatic plant purification system and device shall be placed every 20m, and a total of 124 devices shall be placed. The device is prefabricated according to the method in the specific embodiment, and the planting area of ​​aquatic plants in each device is 4.41m 2 , Aquatic plants are planted on the device according to the ratio of 3:7, and the planting area is 1.32m2. 2 , the grass planting area is 3.09m 2. It can reduce CODcr in river water from 27.36mg / L to 24.13mg / L, total phosphorus from 0.45mg / L to 0.32mg / L, ammonia nitrogen from 2.3mg / L to 1.88mg / L, and total nitrogen from 2.1mg / L dropped to 1.74mg / L, reaching the Class V water standard in the "Environmental Quality Standard for Surface Water (GB3838-2002)".

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Abstract

The invention discloses an aquatic plant purification system and device suitable for a non-navigable river channel, and belongs to the field of environmental protection. The aquatic plant purificationdevice comprises a support frame, aquatic plants, a network structure and mooring anchors, wherein the support frame comprises a frame and a carrier and is formed by PE (polyethylene) pipes which areconnected by four-way valves and elbows, and are sealed each other by using an adhesive, so that the buoyancy force generated by the support frame is greater than the weight of the support frame; theaquatic plants are planted in the grid area of the support frame; and the device is relatively fixed relative to the water bottom or both shores by the mooring anchors. When water bodies N and P areV types, the ratio of hydrocotyle verticillata to myriophyllum spicatum L. is 7:3; when the water bodies are inferiorly V types, the ratio of the hydrocotyle verticillata to the myriophyllum spicatumL. is 3:7; and when the water bodies are superior to IV types, the hydrocotyle verticillata can be adopted in the whole water bodies. The aquatic plant purification system and device have low construction cost, can be mass-produced, and can be adjusted according to different hydrological conditions and water-contaminated conditions, thereby achieving the effect of purifying the water bodies very well.

Description

technical field [0001] The invention belongs to the field of river sewage treatment and environmental protection, and relates to an aquatic plant purification system and device suitable for unnavigable rivers. Background technique [0002] In my country's Yangtze River, Pearl River Delta and other water network areas, industrial production is relatively developed, there are many factories, and a large number of migrant workers have been absorbed. Due to the high housing rent, these migrant workers choose to live in rented houses in villages and towns or villages around the city. This has resulted in a sharp increase in the population per unit area of ​​villages in water network areas, and has caused intensified pollution of the ecological environment of rivers. The residence of a large number of migrant workers produces much more domestic wastewater than the original residents, and most villages have not yet established sewage treatment facilities, and domestic sewage enters...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34C02F101/16
CPCC02F3/32C02F3/34C02F2101/105C02F2101/16C02F2103/007C02F2203/006C02F2203/008C02F2209/08C02F2209/14C02F2209/16
Inventor 柏林彭明国张文艺毛林强周新程陶勤锋
Owner CHANGZHOU UNIV
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