Method for controlling endogenous pollution of lakes and water reservoirs

An endogenous pollution and reservoir technology, applied in the field of endogenous pollution control of lakes and reservoirs, can solve the problems of water quality threat, eutrophication, and high heavy metal content, and achieve the effects of low cost, lower Ph value, and enhanced adsorption capacity.

Inactive Publication Date: 2018-12-07
上海库克莱生态科技有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In view of the limiting factors of the above existing methods, in order to solve the problems of eutrophication and heavy metal content in existing lakes and reservoirs at low co

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
  • Method for controlling endogenous pollution of lakes and water reservoirs
  • Method for controlling endogenous pollution of lakes and water reservoirs
  • Method for controlling endogenous pollution of lakes and water reservoirs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to effectively control the eutrophication of the water body and reduce the content of heavy metals in the water, the water quality can be improved. A large number of documents have confirmed that the sediment in the water body and the phosphorus in the overlying water are in a dynamic equilibrium; the following formula:

[0032]

[0033] The factors that promote the adsorption capacity of sediment are: the dissolved oxygen value and pH value of the interface.

[0034] 1. When the dissolved oxygen is low, anaerobic bacteria will reduce the ferric ions in the sediment to ferrous ions, and the ability of the former to absorb phosphorus is dozens of times that of the latter.

[0035] 2. Under neutral pH conditions, phosphate ions are adsorbed on the surface of ferrite flocs through single-base coordination and double-base coordination. When the pH drops, the concentration of hydrogen ions in the overlying water increases, and the surface of ferrite flocs The O ...

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 discloses a method for controlling endogenous pollution of lakes and water reservoirs, and relates to the technical field of government of the lakes and the water reservoirs. The methodcomprises the following steps: 1, surveying to know water quality data of a whole water body, and setting representative sampling points according to a data analysis result; 2, putting deepwater isothermal-layer oxygenation equipment at appropriate sites of a deepwater area; 3, putting up-down water body exchange equipment in appropriate sites of a shallow water area; 4, setting mobile detection points; 5, collecting water-quality data again; and 6, moving a horizontal position of the equipment or increasing the depth of a water outlet of the equipment after the water-quality data in an equipment coverage area is improved so as to further improve the water quality of the water body. According to the method disclosed by the invention, a way of not stirring bottom mud as much as possible isadopted, and dissolved oxygen of overlying water of the water body is increased; by increasing the dissolved oxygen, ammonia nitrogen in the water is reduced so as to reduce a Ph value of the overlying water, and the adsorption ability of the bottom mud is enhanced, and thus, heavy metals such as phosphorus, arsenic and manganese in the water body can be greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of lake and reservoir treatment, and in particular relates to a method for controlling internal source pollution of lakes and reservoirs. Background technique [0002] 1. Current status of lakes and reservoirs: [0003] 1.1. Lake water quality: In 2013, the water quality of 119 major lakes with a relatively high degree of development and utilization and a large area in the country with a total area of ​​29,000 km2 was evaluated. Most of the lakes are in a eutrophic state. There is 1 oligotrophic lake, accounting for 0.8% of the total number of evaluated lakes; 35 medium-nutrient lakes, accounting for 29.4% of the total number of evaluated lakes; 83 eutrophic lakes, accounting for 69.8% of the total number of evaluated lakes. [0004] 1.2. Reservoir water quality: In 2013, the water quality of 262 large reservoirs, 381 medium-sized reservoirs and 24 small-scale reservoirs nationwide, a total of 667 major re...

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
IPC IPC(8): C02F1/28C02F101/16C02F101/20C02F101/10
CPCC02F1/281C02F2101/105C02F2101/16C02F2101/20C02F2103/007
Inventor 杨阳李冬梅丛涤非
Owner 上海库克莱生态科技有限公司
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