Unlock instant, AI-driven research and patent intelligence for your innovation.

Bioelectrochemistry soil remediation system and method driven by solar photovoltaic

A solar photovoltaic and bioelectrochemical technology, applied in the restoration of polluted soil, etc., can solve problems such as the persistent residual of organic pollutants, and achieve the effect of accelerating the electron transfer rate, solving the persistent residual, and increasing the contact area.

Active Publication Date: 2018-05-04
NANJING UNIV OF TECH
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a solar photovoltaic driven bioelectrochemical soil remediation system with solar photovoltaic system as the electric driving force, which can effectively solve the problem of persistent residual organic pollutants in polluted soil

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
  • Bioelectrochemistry soil remediation system and method driven by solar photovoltaic
  • Bioelectrochemistry soil remediation system and method driven by solar photovoltaic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, the biological filter bed uses sand as the filter material; the anode electrode is a nickel metal organic framework material, and the cathode electrode is a graphite rod; the voltage used to drive the bioelectrochemical soil remediation is 0V, the soil humidity is 50%, and the pH is 6, and soil pollutants are petroleum aromatic hydrocarbons, phenols and organophosphorus pesticides.

[0033] The spray solution is 0mg / L of surfactant per liter of water; the carbon source concentration is 0g / L; the nitrogen source concentration is 0g / L; the phosphorus source concentration is 0g / L; the metal ion is 0.1g MgSO 4 ·7H 2 O, 1mg FeCl 3 , 0.1g KH 2 PO 4 , 0.05g anhydrous CaCl 2 ; The concentration of microbial essential nutrients and vitamins is 0.5ml / L.

Embodiment 2

[0035] In this embodiment, the biological filter bed uses crushed stone as the filter material; the anode electrode is a zinc metal organic framework material, and the cathode electrode is a stainless steel mesh; and the voltage used to drive the bioelectrochemical soil remediation is 1V, and the soil humidity is 65%. The pH was 7, and the soil contaminants were petroleum aromatic hydrocarbons, phenols, and organophosphorus pesticides.

[0036] The spray solution contains 50mg / L of surfactant per liter of water, wherein the ratio of sodium dodecylbenzenesulfonate, quaternary ammonium salt and Tween 80 is: 1:2:3; the carbon source concentration is 50g / L L, in which the ratio of glucose, sodium acetate, sodium formate and sucrose is: 1:1:1; nitrogen source concentration is 5g / L; phosphorus source concentration is 2.5g / L; metal ion is 1g MgSO 4 ·7H 2 O, 10mg FeCl 3 , 1g KH 2 PO 4 , 0.5g anhydrous CaCl 2 ; The concentration of microbial essential nutrients and vitamins is 2ml...

Embodiment 3

[0038] In this embodiment, the biological filter bed uses plastic as the filter material; the anode electrode is an iron metal organic framework material, and the cathode electrode is a graphite rod; and the voltage used to drive the bioelectrochemical soil remediation is 2V, the soil humidity is 80%, and the pH is 80%. was 8, and the soil pollutants were petroleum aromatic hydrocarbons, phenols and organophosphorus pesticides.

[0039] The spray solution contains 100mg / L of surfactant per liter of water, wherein the ratio of sodium dodecylbenzene sulfonate, quaternary ammonium salt and Tween 80 is: 3:2:1; the carbon source concentration is 100g / L L, in which the ratio of glucose, sodium acetate, sodium formate and sucrose is: 4:3:2:1; nitrogen source concentration is 10g / L; phosphorus source concentration is 5g / L; metal ion is 2g MgSO 4 ·7H 2 O, 20mg FeCl 3 , 2g KH 2 PO 4 , 1g anhydrous CaCl 2 ; The concentration of microbial essential nutrients and vitamins is 5ml / L.

...

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 relates to a bioelectrochemistry soil remediation system driven by solar photovoltaic. The bioelectrochemistry soil remediation system comprises a PLC control system, a solar photovoltaic system, a spraying system, a biofilter, a supporting layer, a soil filling room and a bioelectrochemistry reaction chamber; the solar photovoltaic system comprises a solar cell panel and a photovoltaic plate controller; the solar cell panel is connected with an accumulator through the photovoltaic plate controller; the accumulator is connected with a anode electrode and a cathode electrode in the bioelectrochemistry reaction chamber; the soil filling system is arranged above the bioelectrochemistry reaction chamber through the supporting layer; the biofilter is arranged above the soil filling room; and the spraying system is arranged above the biofilter through a circulating water pump. According to the bioelectrochemistry soil remediation system driven by solar photovoltaic, the coupling of the solar photovoltaic system, the bioelectrochemistry system and microbial polluted soil remediation technology can effectively improve the degradation efficiency of soil organic pollutants.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a solar photovoltaic-driven bioelectrochemical soil remediation system and method. Background technique [0002] With the rapid development of industrialization, pesticide application and sewage irrigation have an increasing impact on the soil environment. In view of the status quo of soil pollution, various remediation technologies such as biological, physical and chemical have been developed. In practical applications, physical remediation is affected by soil heterogeneity, permeability and other factors, and chemical remediation will produce more toxic side effects. product. At present, microbial remediation technology, which has the advantages of in-situ remediation and no secondary pollution, has become a research hotspot, and the slow natural purification rate of organic pollutants by microorganisms limits its practical application. [0003] The biological filter...

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): B09C1/08B09C1/10
CPCB09C1/08B09C1/085B09C1/10
Inventor 陈英文范梦婕孙靖云徐源沈树宝祝社民
Owner NANJING UNIV OF TECH