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Effects of granulated red mud addition on the fractionation of Pb and Zn in soil and plants growth were studied by 2 batches of soil column incubation experiment(with and without leeks). Experimental results showed that all treatments with granulated red mud addition significantly decreased the concentrations of bio-available and Zn. Compared with the control, the treatment with5% granulated red mud...
The effects of two earthworm species (Eisenia foetida and Allolobaphora caliginosa) on the bioavailability of Zn or Pb were studied in three soils (Cinnamon soil, Aquic brown soil and Acid brown soil) spiked with 200 mg kg-1 Zn or 400 mg kg-1 Pb, respectively. The results showed that Eisenia foetida and Allolobaphora caliginosa were tolerant to Zn or Pb. but the growth of earthworms was adversely...
This study discusses the feasibility of sequential combination of soil washing and chemical stabilization, through investigating the metal mobility in the treated soils. Results indicate that the washing can facilitate to chemically stabilize metals, if the soil has substantial labile fractions to be removed by washing. However, if the labile metal fraction is negligible, an opposite effect is often...
Biowaste, the source separately collected organic fraction of municipal solid waste, can be reused for soil conditioning after composting. In this way, environmentally harmful waste management strategies, such as landfilling or incineration, can be reduced. However, frequent application of composts to soil systems may lead to the accumulation of heavy metals in soils, and therefore legal criteria...
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