Heavy metal contaminated underground water in-situ repair material and preparation method thereof
An in-situ restoration and groundwater technology, which is applied in the field of environmental pollution control and restoration, can solve problems such as easy settlement and poor stability, and achieve the effect of increasing stability, high stability, and repairing heavy metal pollution
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] Performance comparison of magnesium hydroxide suspension before and after modification
[0043] Transfer 50ml of the No. 1-5 sample and the unmodified magnesium hydroxide suspension to a 50ml colorimetric tube. After standing for 3 hours, no delamination occurred in the No. 1-5 samples, while the unmodified magnesium hydroxide The suspension was clearly stratified. Such as figure 1 It is the photo of No. 5 sample and the suspension of equal concentration of unmodified magnesium hydroxide after standing for 3 hours. Put the No. 5 sample and the unmodified magnesium hydroxide suspension under a microscope for observation, the results are as follows: figure 2 Shown: the modified magnesium hydroxide has good dispersion and less agglomeration. However, unmodified magnesium hydroxide particles were seriously agglomerated. Carry out particle size analysis to No. 5 sample, the result is as follows image 3 Shown: 90% of the magnesium hydroxide particles are below 1 μm, an...
Embodiment 2
[0045] Effect of Modified Magnesium Hydroxide on Removal of Heavy Metal Lead
[0046] Simulated exposure to Pb under laboratory conditions 2+ Contaminated groundwater environment by adding Pb to distilled water 2+ Preparation of Pb 2+ Pollution of groundwater, Pb in the system 2+ The concentration is 50mg / L, and the system volume is 500ml. Samples 1 to 5 are added to the system respectively. The whole reaction was carried out at low temperature (10° C.) and under airtight and light-tight conditions. The mixture was centrifuged to take the supernatant, and the Pb in the supernatant was measured 2+ concentration. Taking sample No. 2 as an example, the result is as follows Figure 4 Shown: As the concentration of magnesium hydroxide increases, Pb 2+ The removal rate of the sample increased gradually, and when the dosage of No. 2 sample was greater than 1ml, the removal rate was close to 100%. Pb when adding other samples 2+ There is no significant difference in the remov...
Embodiment 3
[0048] Effect of Modified Magnesium Hydroxide on Removal of Heavy Metal Chromium(III)
[0049] Simulated exposure to Cr under laboratory conditions 3+ Contaminated groundwater environment, by adding Cr in distilled water 3+ Formulating Cr 3+ Pollution of groundwater, Cr in the system 3+ The concentration is 20mg / L, the system volume is 500ml, and samples No. 1 to No. 5 are added to the system respectively. The whole reaction was carried out at low temperature (10° C.) and under airtight and light-tight conditions. The mixture was centrifuged to take the supernatant, and the Cr in the supernatant was measured 3+ concentration. Taking sample No. 2 as an example, the result is as follows Figure 5 Shown: As the concentration of magnesium hydroxide increases, Pb 2+ The removal rate of the sample increases gradually, and when the dosage of No. 2 sample is greater than 2ml, the removal rate is close to 100%. Pb when adding other samples 2+ There is no significant difference...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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