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An aquatic plant inlaying combination system used for water body cleaning

A technology of aquatic plants and a combined system, which is applied in the field of water treatment, can solve the problems that aquatic plants are difficult to achieve ecological treatment effects, and achieve the effects of improving water purification efficiency, water transparency, and water dissolved oxygen

Pending Publication Date: 2017-06-30
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it is difficult to achieve the ideal ecological governance effect by relying solely on one aquatic plant. By combining and configuring different aquatic plants to complement each other's advantages, it is a water restoration model with more application value.

Method used

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  • An aquatic plant inlaying combination system used for water body cleaning
  • An aquatic plant inlaying combination system used for water body cleaning
  • An aquatic plant inlaying combination system used for water body cleaning

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1: For heavily polluted rivers: TN, TP, dissolved oxygen (DO), and transparency (SD) are about 15mg / L, 0.5mg / L, 1.0mg / L, and 0.2m respectively, and the length of the river * width is about 100m ×10m, the average water depth is about 1m, under the condition of hydraulic retention time of 5 days, set 10m according to the direction of water flow 2 Combination (water hyacinth + water hyacinth + water hyacinth + foxtail algae) four units, in which, the length ratio of water hyacinth: water hyacinth: water hyacinth: foxtail is 2:1:2:1 , the water body TN reduction can reach 3.5~5.8g / m 2 / d, TP reduction can reach 0.3~0.6g / m 2 / d, the oxygen content of the water increases to 4.5-6.8mg / L, and the transparency of the water increases to 0.35-0.5m.

Embodiment 2

[0020] Example 2: For heavily polluted rivers: TN, TP, dissolved oxygen (DO), and transparency (SD) are about 15mg / L, 0.5mg / L, 1.0mg / L, and 0.2m respectively, and the length of the river * width is about 100m×10m, the average water depth is about 1m, under the condition of hydraulic retention time of 5 days, set 10m according to the direction of water flow 2 Combination (water hyacinth + water floating lotus + water hyacinth + foxtail algae) four units, use nylon mesh to block the outer periphery of water hyacinth, between water hyacinth and foxtail, and the end of foxtail. The eye lotus and water floating lotus are separated by nylon rope, and a biofilm carrier with a length of 1m is hung on the nylon mesh and the nylon rope. The length ratio of water hyacinth: water hyacinth: water hyacinth: foxtail algae is 2:1:2:1, and the TN reduction of water body can reach 4.7~7.2g / m 2 / d, TP reduction can reach 0.45~0.8g / m 2 / d, the oxygen content of the water increases to 5.7-7.3mg / ...

Embodiment 3

[0021] Example 3: For heavily polluted rivers: TN, TP, dissolved oxygen (DO), and transparency (SD) are about 15mg / L, 0.5mg / L, 1.0mg / L, and 0.2m respectively, and the length of the river * width is about 100m ×10m, the average water depth is about 1m, under the condition of hydraulic retention time of 5 days, set 10m according to the direction of water flow 2 Combination (water hyacinth + water floating lotus + water hyacinth + foxtail algae) four units, use nylon mesh to block the outer periphery of water hyacinth, between water hyacinth and foxtail, and the end of foxtail. The eye lotus and water floating lotus are separated by nylon ropes, and at the same time, a biofilm carrier with the same length as the depth of the river is hung on the nylon mesh and the nylon rope. The length ratio of water hyacinth: water hyacinth: water hyacinth: foxtail algae is 1:1:1:1, and the TN reduction of water body can reach 2.3~4.3g / m 2 / d, TP reduction can reach 0.2~0.5g / m 2 / d, the oxyge...

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Abstract

An aquatic plant inlaying combination system used for water body cleaning is disclosed. The system is disposed in a river channel in which water flows, and includes a floating plant zone, a submerged plant zone and a rail frame. The floating plant zone and the submerged plant zone are disposed in the rail frame. The transverse length of the rail frame is matched with the width of the river channel. The longitudinal length of the rail frame is matched with the total length of the floating plant zone and the submerged plant zone. The floating plant zone comprises fixed zones and an unrestricted zone. The system is provided with one of the fixed zones, the unrestricted zone, the other fixed zone and the submerged plant zone in order from the upstream to the downstream in the river channel. The length ratio of the four zones which are the first fixed zone, the unrestricted zone, the second fixed zone and the submerged plant zone the in the river channel is 1-2:1:1-2:1. Through the system, waste water in the river channel is comprehensively treated, an escape-preventing issue for floating plants is overcome, the floating plants are safely controlled and cultivated, and the amount of dissolved oxygen is increased, thus providing a guarantee for survival of aquatic animals.

Description

technical field [0001] The invention relates to the field of treatment of heavily polluted rivers, ponds, tail water of sewage treatment plants and other water bodies, in particular to an aquatic plant mosaic combination system for water body purification. Background technique [0002] Eutrophication of water body is one of the main environmental problems currently faced in China. Among the various measures to control eutrophic water body, phytoremediation has good purification effect, economical and environmental protection, low energy consumption, simple operation and is conducive to the restoration and reconstruction of water. Advantages such as the self-purification ability of the ecosystem have become important measures that have attracted widespread attention. Up to now, a lot of research and practical application have been done on different life-type aquatic plants, such as floating plants and submerged plants, in water purification and restoration at home and abroad....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34
CPCC02F3/327C02F3/34C02F2103/34C02F2103/007Y02W10/10
Inventor 秦红杰张志勇刘旻慧王岩闻学政严少华张迎颖刘海琴宋伟
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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