scholarly journals Research progress in activation of phosphorus containing substances and remediation of heavy metal pollution in soil

2020 ◽  
Vol 165 ◽  
pp. 02033
Author(s):  
Wang Na
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Phosphate Rock ◽  
Phosphorus Deficiency ◽  
Rapid Development ◽  
Utilization Efficiency ◽  
Research Progress ◽  
Low Grade ◽  
Rock Powder

The phenomenon of soil phosphorus deficiency in China is very serious, which limits the agricultural production in China. Low molecular weight organic acids and phosphorus solubilizing microorganisms are widely distributed in the soil, and can be used as activators to improve the content of phosphorus in the soil. With the rapid development of industry and agriculture in China, heavy metal pollution in the environment is becoming more and more serious. China is rich in phosphate rock resources, but the grade of phosphate rock is low and the utilization efficiency is not high. Using phosphate rock to deal with heavy metal pollution has been favored by environmental scholars. This paper analyzes the main composition and application of phosphate rock in China, the activation of phosphate rock powder, the remediation effect and mechanism of phosphate rock powder and activated phosphate rock powder on heavy metals in soil, providing theoretical basis for the scientific utilization of low-grade phosphate rock and the treatment of heavy metal pollution.

Detection Model of Heavy Metal Pollution Source of City Surface Soil

2013 ◽  
Vol 329 ◽  
pp. 56-60
Author(s):  
Lian Qiu Wei
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Surface Soil ◽  
Rapid Development ◽  
Pollution Source ◽  
Detection Model ◽  
City Population ◽  
The Impact ◽  
The City

With the rapid development of city economy and increasing of city population , the impact of human activities on the environmental quality of the city is becoming more and more serious. The influence of human activity under the evolution model of city geological environment,has increasingly become the focus of attention. To make the analysis of these data through the concentration of heavy metals in the surface soil of the city, the location of sampling points and heavy metal concentrations of background value, establish a detection model of heavy metal pollution source about city surface soil.

Significance of Delayed Geochemical Hazard of Cd in Dawu River Domain in the Dexing Copper Mine, Jiangxi Province

2012 ◽  
Vol 236-237 ◽  
pp. 705-708
Author(s):  
Yong Qiang Yang ◽  
Xiao Liang Wang ◽  
Yuan Yi Zhao ◽  
Lei Huang ◽  
Yan Xia Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Critical Point ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Ecological Environment ◽  
Jiangxi Province ◽  
Low Grade ◽  
Copper Mine ◽  
Successive Extraction ◽  
Huge Impact

The smelting factory of Dexing Copper Mine is separated, so mine stripping material and low grade ore yards have huge impact on the environment. For a variety of reasons, the efficiency of operation of the environmental protection facilities in Dexing Copper Mine area was so low that all the acid wastewater was not treated well before discharge. This can lead to a problem that extracting copper and other metal mineral from the low grade ore in the waste stone, and also produce acidic wastewater and heavy metal pollution. Finally, the wastewater discharge into the Dawu River has made huge impact on water, soil, ecological environment. Based on the mathematical model of DGH, this paper analyzed the soil samples of Dexing Copper Mine in the Dawu River domain by the method of successive extraction. The results reveals the DGH characteristics of Cd element in the soil of downstream Dawu River. Cd element in the soil of downstream of Dawu Rive tends to shift from TRCP-Cd (total releasable content of Cd element) to TCAS-Cd (total concentration of active species of Cd element). The critical point of outbreak is TRCP=185.90 ng/g. 36% of the samples of downstream Dawu River oversteps the critical point of outbreak, making it possible to break out. Meanwhile, the analysis of DGH of Cd element is of great significance to early-warning of soil heavy metal pollution and improvement of ecological environment in the study area.

Heavy metal pollution from phosphate rock used for the production of fertilizer in Pakistan

2009 ◽  
Vol 91 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Sabiha-Javied ◽  
T. Mehmood ◽  
M.M. Chaudhry ◽  
M. Tufail ◽  
N. Irfan
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Phosphate Rock

The Research Progress on New Adsorbent of Dealing with Heavy Metal Pollution in Water

2014 ◽  
Vol 1065-1069 ◽  
pp. 1969-1972
Author(s):  
Lin Zhu ◽  
Mei Na Liang ◽  
Dao Lin Huang
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Activated Carbon ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Industrial Waste ◽  
Research Progress ◽  
Absorbent Material ◽  
The Future ◽  
Adsorbent Materials

With the increasing of industrialization, the heavy metals cause serious pollution of water in China. This paper reviewed the study of many kinds of new adsorbent materials remove heavy metal from pollution water, these new adsorbent including modification activated carbon, inorganic absorbent material, industrial waste, biological adsorbents and synthetic adsorbent, and pointed out the trend of development of the new adsorbent material application in the future.

In situ detection of heavy-metal ions in sewage with screen-printed electrode-based portable electrochemical sensor

The Analyst ◽  
2021 ◽  
Author(s):  
Qiwen Bao ◽  
Gang Li ◽  
Zhengchun Yang ◽  
peng pan ◽  
Jun Liu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Heavy Metal Ions ◽  
Rapid Development ◽  
Electrochemical Analysis ◽  
Screen Printed Electrode ◽  
In Situ Detection

The rapid development of industrial technologies continuously increases the heavy-metal pollution of water resources. Recently, portable electrochemical analysis-based devices for detecting heavy-metal ions have attracted much attention due to their...

scholarly journals Application of clay minerals in remediation of heavy metal pollution in soil

2020 ◽  
Vol 204 ◽  
pp. 01011
Author(s):  
Sun Yingying ◽  
Zhang Baoqiang ◽  
Wei Yang
Keyword(s):  
Heavy Metal ◽  
Clay Minerals ◽  
Clay Mineral ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Research Progress ◽  
Research Trend ◽  
Future Research ◽  
Modern Times ◽  
Basic Characteristics

In modern times where heavy metal pollution in soil is becoming more and more serious, the new natural non-polluting remediation methods represented by clay mineral materials have attracted more and more attention in the industry.In this paper, the research progress on the types and basic characteristics of clay mineral materials, the effect and mechanism of remediation of heavy metal pollution in soil at home and abroad was comprehensively discussed. The deficiencies of relevant studies were also summarized, and the future research trend was predicted.

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