Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite soil layer system, method and experimental apparatus for removing typical endocrine disruptors from water

A technology of endocrine disruptors and composite soil layers, which is applied in the field of water treatment, can solve problems such as difficulty in popularization and application, poor removal effect, and limited removal ability of natural soil layers, so as to reduce ecological and human health risks and enhance permeability , the effect of low site and technical requirements

Inactive Publication Date: 2015-12-09
TSINGHUA UNIV
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been many literature reports on the use of soil layer systems to remove trace organic pollutants. However, due to the limited removal capacity of natural soil layers and poor long-term removal effect, it is difficult to popularize and apply them in actual operation.

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
  • Composite soil layer system, method and experimental apparatus for removing typical endocrine disruptors from water
  • Composite soil layer system, method and experimental apparatus for removing typical endocrine disruptors from water
  • Composite soil layer system, method and experimental apparatus for removing typical endocrine disruptors from water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0057] Example analysis 2

[0058] Pollutants were artificially added to the effluent water of Tsinghua University’s reclaimed water station, so that the concentration of EE2 and BPA in the recharged water reached 10μgL -1 . Also take 1 day as a cycle, according to the wet-to-dry ratio of 1:1, recharge alternately between submerged irrigation and falling dry. After 1, 3, 6, 7, 8, 10, and 12 days of recharging, water was collected from the bottom of the soil column to study the removal effect of typical EDCs pollutants by the artificial composite soil layer system constructed under recharging with high concentrations of pollutants. The removal rate of EE2 / BPA by the system is shown in Table 3.

[0059] Table 3 Removal rate of EE2 / BPA by the system under high concentration recharge

[0060]

[0061]

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 provides a composite soil layer system for removing typical endocrine disruptors from water. The system comprises a degradation layer located in the topmost layer for enhancing the degradation effect of microorganisms and ensuring the high hydraulic load, wherein volcanic rock is added to filling soil of the degradation layer; an adsorption layer located in the middle for enhancing the adsorption removal effect of a filler for pollutants; and a filtering and supporting layer located at the bottommost layer for supporting and filtering. To-be-treated water is enabled to flow from top to bottom to pass through the degradation layer, the adsorption layer and the filtering and supporting layer sequentially, so that water treatment is realized. The present invention further provides an experimental apparatus for removing typical endocrine disruptors from water. Compared with the prior art, the system is advantaged in that on account of target pollutants, an artificial filter material with high adsorption capability and high biodegradability is adopted to replace a natural soil layer in a traditional soil treatment system to construct a composite soil layer treatment system; and the purpose of water purification is achieved through physical, chemical and biological effects between a medium, which mainly uses the filter material, and the pollutants.

Description

technical field [0001] The invention belongs to the technical field of water treatment, in particular to a composite soil layer system, method and experimental device for removing typical endocrine disruptors in water. Background technique [0002] In recent decades, water resources have increasingly become a strategic resource restricting social and economic development. Reclaimed water is regarded as the second water source of the city. Reuse after advanced treatment can realize the recycling and replenishment of water resources, which is one of the effective ways to alleviate the shortage of water resources. Due to the limited ability of traditional sewage secondary treatment technology to remove trace toxic and harmful pollutants such as endocrine disruptors (EDCs), as well as the persistence and accumulation of the substance itself, the existence of EDCs pollutants in reclaimed water makes it difficult to use in the recycling process. There may be risks to human health...

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): C02F9/14
Inventor 刘翔李淼向熙辛莉
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com