scholarly journals LEAD IMMOBILIZATION IN ARTIFICIAL CONTAMINATED SOIL USING SULFUR-IMPREGNATED CARBONACEOUS BAMBOO

2020 ◽  
Vol 19 (76) ◽  
Author(s):  
Takaaki Wajima
Keyword(s):  
Contaminated Soil ◽  
Lead Immobilization

scholarly journals Role of Inorganic and Organic Fractions in Animal Manure Compost in Lead Immobilization and Microbial Activity in Soil

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Masahiko Katoh ◽  
Wataru Kitahara ◽  
Takeshi Sato
Keyword(s):  
Microbial Activity ◽  
Contaminated Soil ◽  
Animal Manure ◽  
Water Soluble ◽  
Residual Fraction ◽  
Inorganic Component ◽  
Manure Compost ◽  
Microbial Enzyme ◽  
Lead Immobilization ◽  
Inorganic Fraction

This study aimed to identify how the ratio of inorganic-to-organic components in animal manure compost (AMC) affected both lead immobilization and microbial activity in lead-contaminated soil. When AMC containing 50% or more inorganic fraction with high phosphorous content was applied to contaminated soil, the amounts of water-soluble lead in it were suppressed by over 88% from the values in the soil without compost. The residual fraction under sequential extraction increased with the inorganic fraction in the AMC; however, in those AMCs, the levels of microbial enzyme activity were the same or less than those in the control soil. The application of AMC containing 25% inorganic fraction could alter the lead phases to be more insoluble while improving microbial enzyme activities; however, no suppression of the level of water-soluble lead existed during the first 30 days. These results indicate that compost containing an inorganic component of 50% or more with high phosphorus content is suitable for immobilizing lead; however, in the case where low precipitation is expected for a month, AMC containing 25% inorganic component could be used to both immobilize lead and restore microbial activity.

Cadmium and lead immobilization in a calcareous contaminated soil using the cost-effective amendments

2019 ◽  
Vol 12 (23) ◽  
Author(s):  
Somayeh Sefidgar Shahkolaie ◽  
Mojtaba Baranimotlagh ◽  
Esmael Dordipour ◽  
Farhad Khormali
Keyword(s):  
Contaminated Soil ◽  
Cost Effective ◽  
Lead Immobilization ◽  
Cadmium And Lead ◽  
The Cost

Recovery of nutrients from wastewater by a MgCl2 modified zeolite and their reuse as an amendment for Cu and Pb immobilization in soil

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 55809-55818 ◽  
Author(s):  
Hao Wang ◽  
Xuejiang Wang ◽  
Jie Chen ◽  
Peng Xia ◽  
Jianfu Zhao
Keyword(s):  
Contaminated Soil ◽  
Recovery Process ◽  
Nutrient Recovery ◽  
Modified Zeolite ◽  
Soil P ◽  
Lead Immobilization ◽  
Pb Immobilization

In this study, nutrients in wastewater were simultaneously removed by magnesium modified zeolite, and the precipitates of the nutrient recovery process were applied as a kind of amendment to achieve copper and lead immobilization in contaminated soil.

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