The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this investigation, the Zhaoyuan gold mine was selected as the target study region, and the crops samples and corresponding soil samples surrounding gold mine were gathered to detect the lead content in those samples. The lead content in the soil and crop samples was detected by atomic absorption spectrometric method The physical and chemical characteristics of soil, such as the pH value of soil...
Solid waste is the biggest and primary pollution source in many Chinese cities such as Jinan, the capital of Shandong Province. Before the municipal sanitary landfill plant became operational in 1998, large amount of solid waste generated in Jinan was trucked to garbage disposal sites scattered in a number of suburban villages including JiuQu, Dajian Ditch, Shiliuliher, South and North Zhaner, and...
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...
The research reveals the level and chemical forms of lead in soil of sewage irrigation area in Guangdong province, South China. Samples were collected from topsoil (0-10cm) and subsoil (30-40cm), and the total content and different fractions of lead were extracted by HNO3-HF-HClO4 and Tessier sequential extraction procedure, respectively. It is concluded that the soil of study area has been contaminated...
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...
The lead absorption and accumulation in Houttuyniacordata Thunb. and its Hygienic Safety was studied by field sampling and analysis. Results showed that Houttuyniacordata Thunb. has strong absorption ability of lead. In the samples collected, the maximum lead content in the leaf, stem and root respectively was 40.03, 11.05, 7.57 mg/kg in Houttuyniacordata Thunb., in which the content was higher...
A better understanding of metal ion binding to soil organic substances is of fundamental importance in geochemical modeling of environments. Fulvic acids (FA) and humic acids (HA) make up an important part of soil organic matter, and their binding capacity affects the fate of metal ions and plays an important role in their mobility. Binding constants of Pb(II) to HA and FA were evaluated by anodic...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.