The Present Condition of Polluted Soil Treatment Technology in the Construction Field.

1996 ◽  
Vol 43 (4) ◽  
pp. 200-205
Author(s):  
Fukashi OGUCHI
Keyword(s):  
Polluted Soil ◽  
Soil Treatment ◽  
Present Condition ◽  
Treatment Technology

Study on the Treatment Technology of Polluted Soil with Heavy Metal

2012 ◽  
Vol 599 ◽  
pp. 529-532 ◽  
Author(s):  
Zhen Ying Zhang ◽  
Da Zhi Wu ◽  
Qi Mao Cai
Keyword(s):  
Heavy Metal ◽  
Polluted Soil ◽  
Physical Rehabilitation ◽  
Treatment Technology ◽  
Research Results ◽  
Cement Solidification

The main ways of soil polluted by heavy metal are analyzed, and the technical methods of treating the polluted soil have been put forward. The research results show that physical rehabilitation, cement solidification and plant-remediation are main technologies to treat the polluted soil. The research results can be used for provided reference in actual projects.

Amphoteric Surfactants for PAH and Lead Polluted-Soil Treatment Using Flotation

2008 ◽  
Vol 197 (1-4) ◽  
pp. 381-393 ◽  
Author(s):  
Julia Mouton ◽  
Guy Mercier ◽  
Jean-François Blais
Keyword(s):  
Polluted Soil ◽  
Soil Treatment ◽  
Amphoteric Surfactants

Microbiological soil treatment technology using natural biocenosis

2015 ◽  
Vol 19 (9) ◽  
pp. 4 ◽  
Author(s):  
B.S. Ksenofontov ◽  
A.S. Kozodaev ◽  
R.A . Taranov ◽  
M.С . Vinogradov ◽  
E.V. Senik ◽  
...  
Keyword(s):  
Soil Treatment ◽  
Treatment Technology

Thiacalix[4]Arenetetrasulfonate Applied to Remediation of Soils Contaminated with Lead

2011 ◽  
Vol 343-344 ◽  
pp. 374-377
Author(s):  
Da Zhao ◽  
Tie Heng Sun ◽  
Xiao Jun Hu ◽  
Xiao Min Hu
Keyword(s):  
Cost Effective ◽  
Polluted Soil ◽  
Soil Treatment ◽  
Lead Removal ◽  
Optimum Temperature ◽  
Batch Experiments ◽  
Liquid Ratio ◽  
Soil Matrix ◽  
Effects Of Temperature ◽  
Solid Liquid

The performance of thiacalix[4]arenetetrasulfonate (TCAS) for the treatment of soils contaminated with lead was evaluated in this study. Batch experiments were performed to test the factors influencing remediation of lead-polluted soil. The effects of temperature, solid-liquid ratio and the ionic strength on the removal capacities of lead by TCAS reagent had been studied. The results showed that the TCAS reagent was effective for removal of lead from the contaminated soil, the optimum temperature of TCAS for soil treatment was 5°C-25°C. The optimum solid-liquid ratio was 1:10 for soil treatment. Adding Ca(NO3)2 was of no advantage for lead removal, and the effect of Ca(NO3)2 on the removl rate was less when its molarity was less than 0.01mol/L. This experimental work has also demonstrated the great importance of soil matrix for the evaluation of the TCAS leaching as a cost effective remedial option.

Extractive Decontamination of Copper-Polluted Soils Using TCAS

2011 ◽  
Vol 183-185 ◽  
pp. 462-465
Author(s):  
Da Zhao ◽  
Tie Heng Sun ◽  
Xiao Jun Hu ◽  
Xiao Min Hu
Keyword(s):  
Field Research ◽  
Polluted Soil ◽  
Soil Treatment ◽  
Research Station ◽  
Optimum Temperature ◽  
Batch Experiments ◽  
Liquid Ratio ◽  
Polluted Soils ◽  
Total Copper ◽  
Solid Liquid

Thiacalix[4]arenetetrasulfonate (TCAS) was investigated as an extractant for decontaminating copper-polluted soils with elevated total copper (2000mg/kg) from the national field research station of Shenyang agroecosystems. Batch experiments were performed to test the factors influencing remediation of copper-polluted soil. The effects of solid-liquid ratio, the ionic strength and temperature on the removal capacities of copper by TCAS reagent had been studied. The results showed that the TCAS reagent was effective for removal of copper from the contaminated soil, the optimum solid-liquid ratio was 1:10 for soil treatment. Adding Ca(NO3)2was of no advantage for copper removal, and the effect of Ca(NO3)2on the removl rate was less when its molarity was less than 0.1mol/L. The optimum temperature of TCAS for soil treatment was 5°C-25°C.

Khandut revisited: Monuments, shrines, and newly discovered rock art in Wakhan District

Afghanistan ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 282-301
Author(s):  
John Mock
Keyword(s):  
Central Asia ◽  
Rock Art ◽  
Field Work ◽  
Present Condition ◽  
Current Article

In 1972, a brief article titled “Khandud, Village de la Vallée du Wakhan” appeared in Afghanistan 25. The subsequent decades of conflict precluded any follow-up research in Wakhan. The current article, based on field work from 2004 to 2016, examines the present condition of the sites described in 1972, offers a revised analysis of their significance, and introduces newly discovered rock art that connects Wakhan with the Saka culture of Central Asia and illustrates indigenous traditions of the Pamir-Hindukush ethnolinguistic region.

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