Determination of Pb-Contamination and Remediation Boundary Based on a Specific Site

2011 ◽  
Vol 414 ◽  
pp. 27-31
Author(s):  
An Ping Liu ◽  
Xiao Nan Sun ◽  
Fang Zhao ◽  
Xiao Song Sun ◽  
Wei Ren ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Specific Site ◽  
Contaminated Site ◽  
Repair Work ◽  
Soil Layers ◽  
Pb Contamination ◽  
Surfer Software ◽  
Reliable Basis

In the remediation of heavy metal contaminated site, determining the remediation boundary of contaminated site and amount of contaminated soil are important link of the entire work. This paper uses surfer software to draw out a picture of Pb-contamination distribution in different soil layers, determines a remediation boundary, and provides a reliable basis and brings great convenience for later repair work.

scholarly journals Phytomanagement of a chromium-contaminated soil by a high-value plant: Phytostabilization of heavy metal contaminated site

BioResources ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 3545-3565
Author(s):  
Li-Li Ye ◽  
Yong-Shan Chen ◽  
Yu-Dao Chen ◽  
Lian-Wen Qian ◽  
Wen-Li Xiong ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Soil Amendments ◽  
Oyster Shell ◽  
Water Soluble ◽  
Contaminated Site ◽  
Citrus Peel ◽  
Commercial Scale ◽  
Shell Waste ◽  
Cr Concentration

Phytoremediation of metal-contaminated soil can be an eco-friendly technology. However, relatively long cultivation times impedes its popularization on a commercial scale. This study evaluated the effectiveness of lavender plants (Lavandula dentata L.) to remediate a highly chromium (Cr)-contaminated site through a pot experiment. The lavender growing soil was mixed both with and without biochar (2.5% w/w) + oyster shell waste (2.5% w/w) and biochar (2.5% w/w) + citrus peel waste (2.5% w/w). The results indicated that Cr(VI) accounted for 19.0% to 4.7% of the total soil Cr, while Cr(III) accounted for 81.0% to 95.3%, from the beginning to the end of the cultivation. The water-soluble Cr concentration decreased from 44.6 mg/kg to 7.5 mg/kg. The biomass of the lavender growing in the contaminated soil decreased by factors in the range between 4-fold and 6-found.The addition of soil amendments significantly reduced the (potential) bioavailable Cr (p < 0.05) in the range of 2 to 3 fold, consequently improving the growth of lavender in the highly toxic soil. In addition, the soil amendments significantly reduced the Cr bioaccumulation and the translocation from the roots to the shoots. These results showed that the cultivation of lavender with suitable amendments can effectively be used for phytomanagement techniques in highly contaminated soil.

scholarly journals Heavy metal accumulation and antioxidant properties of Nephrolepis biserrata growing in heavy metal-contaminated soil

2015 ◽  
Vol 17 (3) ◽  
pp. 544-554 ◽  
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Defense Mechanisms ◽  
Antioxidant Properties ◽  
Heavy Metal Stress ◽  
Industrial Area ◽  
Heavy Metal Accumulation ◽  
Metal Stress ◽  
Contaminated Site ◽  
Soil P

<div> <p>Antioxidant defense mechanisms are crucial for plants to survive under stress conditions. We investigated the capacity of a wild fern species, <em>Nephrolepis biserrata,</em> growing in the vicinity of industrial land to accumulate heavy metals, and assessed its antioxidative response under metal stress. The soils in this particular area were highly contaminated with zinc followed by lead and copper. As control, <em>N. biserrata</em> located 10 km away from the industrial area were collected and assessed. <em>N. biserrata</em> from the contaminated sites accumulated metals in their tissues in similar descending order of zinc&gt;lead&gt;copper. The values of bioaccumulation factor between 0 to 0.1 indicate <em>N. biserrata</em> as a moderate accumulator for the tested metals. For the enzymatic antioxidant assays, the activities of catalase and ascorbate peroxidase were significantly higher in <em>N. biserrata</em> from contaminated soil compared to control, while the activity of superoxide dismutase was not differ significantly in plants from both sites. We also detected higher contents of total phenolics and total flavonoids in <em>N. biserrata</em> collected from contaminated site compared to control. Our HPLC analysis revealed higher levels of myricetin and kaempferol in plant samples from the contaminated area. Our study verified the capacity of <em>N. biserrata</em> to scavenge oxygen radicals when exposed to heavy metal stress. Such ability to tolerate stressful condition suggests that the plant is a potential metal phytoremediator.&nbsp;</p> </div> <p>&nbsp;</p>

The Application of XRF in Field Monitoring on Digging Pb-Contaminated Soil

2012 ◽  
Vol 500 ◽  
pp. 24-28 ◽  
Author(s):  
Xiao Nan Sun ◽  
An Ping Liu ◽  
Xiao Song Sun
Keyword(s):  
Heavy Metal ◽  
Contaminated Soil ◽  
Field Monitoring ◽  
Contaminated Site ◽  
Full Time ◽  
Portable Xrf ◽  
Monitoring Method ◽  
X Ray ◽  
Limit Value ◽  
Pb Concentration

In this paper, a portable X-ray fluorescence (XRF) is designed to monitor the digging process of Pb contaminated soil based on contaminated site remediation. This field monitoring method is applied to the project of Pb contaminated restoration site K. A full time program is designed for XRF to monitor the exceeded standard regions of Pb pollution during the digging contaminated soil. The acceptance monitoring results show that the Pb concentration of all original exceeded points are under the limit value 260mg/kg, and reach the requirement of environmental protection. This application results show that the portable XRF was designed effectively in field monitoring on heavy metal such as Pb, which realize the purpose of quickly identification and digging of contaminated soil.

Analysis of Lead Heavy Metal (Pb) Contamination on Matte Lipstick Preparations for Sale in Banda Aceh City Aceh Market

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Rizki Andalia ◽  
Mulia Aria Suzanni ◽  
Rini Rini
Keyword(s):  
Heavy Metal ◽  
Atomic Absorption ◽  
Atomic Absorption Spectrophotometry ◽  
The Body ◽  
Permissible Limit ◽  
The Sun ◽  
Absorption Spectrophotometry ◽  
Pb Contamination ◽  
Body Organ ◽  
Banda Aceh

Lipstick or lip dye is a cosmetic dose that serves to coloring, decorative the lips, as a moisturizing material and protect the lips from exposure the sun to provide optimum results. Lipstick should not contain chemicals such as lead (Pb) because the Pb is a heavy metal that is very dangerous when continuously used on the skin, because it will be absorbed into the blood and attack the body organ causing the onset of disease. According to BPOM that the lead rate on the lipstick does not exceed the permissible limit of 20 mg/kg or 20 ppm.This research aims to know the levels contained in the samples are 4 brands of matte lipstick that are sold in the Aceh market in Banda Aceh City with the method of atomic absorption spectrophotometry (AAS). The results showed that on the 4 brands of lipstick matte contain heavy metal lead (Pb) with a rate still qualified allowed by BPOM  is samples A, B, C, and D, respectively at 0.24 ppm; 0.10 ppm; 2.87 ppm and 1.32 ppm, so that the 4 brands of lipstick matte are still used.

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