A method for remediating zinc-polluted water bodies and wetlands by using Aster diaphylla

An aster and wetland technology, applied in water pollutants, polluted waterways/lakes/ponds/river treatment, chemical instruments and methods, etc., can solve the problems of zinc-contaminated water bodies and wetlands that have not yet been repaired by aster, and achieve The effect of strong resistance, fast growth and easy survival

Active Publication Date: 2022-03-25
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the plants that can be used to remediate heavy metal Zn pollution in water mainly include black algae, bitter grass, hornwort, calamus, and reed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for remediating zinc-polluted water bodies and wetlands by using Aster diaphylla
  • A method for remediating zinc-polluted water bodies and wetlands by using Aster diaphylla

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The experiment was carried out in the net room greenhouse in the core area of ​​scientific research and experiment of Guangxi Academy of Agricultural Sciences.

[0024] Sow the selected Asteria diaphylla seeds in the sand layer of the plastic seedling raising frame, add ultra-pure water to keep the sand layer moist, and after the seeds germinate, add water containing a small amount of compound fertilizer for their growth and development.

[0025] Choose the same size Asteria asterum seedlings, wash the root with ultrapure water, transplant in fine sand plastic buckets that have been cleaned, the thickness of sand in each bucket is 10cm, and 3 Asteria asteraceae seedlings in each bucket, use nutrient solution (nutrient solution) Its preparation and use methods are consistent with the following references, references: Wang Tianshun, Chen Wei, Yang Yuxia, Liao Jie, Jiang Cuiwen, Jiang Wenyan, Mo Leixing. The effect of silicon on the growth of fruit cane seedlings and zinc a...

Embodiment 2

[0031] In late June 2017, by transplanting, Aster subulatus Michx. was planted in the wetland near the sewage outlet polluted by heavy metal Zn under natural conditions. The transplanted Aster subulatus seedlings were as tall as It is 7-10cm, the distance between plants and rows is 25cm×25cm, and the ternary compound fertilizer is applied for its growth and development; after 85 days, the aboveground part of the plant is harvested, and the stubble is 3-5cm, and the heavy metal Zn content in the aboveground part is measured to be 738.4mg / kg. Centralized ashing treatment is carried out on the harvested asters from wetlands, and then the ashes are safely landfilled or used as raw materials for Zn extraction.

Embodiment 3

[0033] In the first ten days of April 2018, live broadcasting was adopted. Under natural conditions, Aster subulatus Michx. was planted in the wetland near the sewage outlet polluted by heavy metal Zn. Apply decomposed manure for its growth and development; harvest the aboveground part of the plant after 5 months, leave stubble of 3-5 cm, and measure the heavy metal Zn content in the aboveground part to be 842.5 mg / kg. Centralized ashing treatment is carried out on the harvested asters from wetlands, and then the ashes are safely landfilled or used as raw materials for Zn extraction.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of water body and wetland pollution restoration, and specifically relates to a method for repairing zinc-polluted water bodies and wetlands by using aster asteria. The method comprises the following steps: (1) fixing the seedlings of Asteria subterraneanus to the water surface polluted by zinc with an ecological floating board or directly transplanting them to wetlands polluted by zinc, or direct-seeding the seeds of Asteria subterraneanus to wetlands polluted by zinc Then apply fertilizers for its growth and development; (2) after the vigorous growth period of the Aster asteria plant, harvest the aboveground part, and the Aster asteria diaphylla of harvesting is removed for centralized treatment; Concentrated processing of Aster diaphyllum. The method can effectively reduce the Zn content in the polluted water body or wetland, thereby achieving the purpose of restoring the Zn content in the polluted water body or wetland, has simple operation, low cost, and is suitable for large-scale popularization and application.

Description

【Technical field】 [0001] The invention relates to the field of water body and wetland pollution restoration, in particular to a method for repairing zinc-polluted water bodies and wetlands by using the aster aster. 【Background technique】 [0002] With the rapid development of the global economy, the human demand for water resources is increasing, but at the same time the pollution of water resources is also becoming more and more serious. A large number of studies have found that heavy metal pollution in water has become a common phenomenon in our country. The main cause of water heavy metal zinc (Zn) pollution in my country is the continuous discharge of a large amount of municipal solid waste, industrial and domestic sewage, mining and metallurgical waste, and atmospheric sediment into water bodies. Zn is an essential trace element for the human body. It is a component of enzymes and participates in metabolism. Although the toxicity of Zn is very low, excessive intake can...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C02F101/20
CPCC02F3/32C02F2101/20C02F2103/007
Inventor 杨玉霞王天顺蒋文艳陈伟王海军莫磊兴李晓妤廖洁肖艳妮
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap