Environmental Engineering Reference
In-Depth Information
Fig. 6.3
National industrial solid waste treatment (10,000 t) (Source: National Bureau of statis-
tics,
Chinese environmental statistics yearbook 2010
)
6.6
Contaminated Soil Disposal During the 11th Five-Year
Plan
6.6.1 Compliance of Contaminated Soil Disposal Control
During the 11th Five-Year Plan, China finished a nationwide soil contamination
survey and published a proposal for the disposal of contaminated soil. Objectively,
Chinese soil contamination is on the rise, and it still far away from satisfactory.
The Chinese Ministry of Environmental Protection's sampling test of heavy metal
across a 300,000-ha segment of protected farmland found that the soil in 36,000 ha,
or 12.1 % of the total land, had excessive amounts of heavy metal.
6.6.2 Main Measures of Containment Soil Disposal
6.6.2.1 Preventive Treatment of Heavy Metal on the Agenda
Heavy metal pollution was a vital problem during the 11th Five-Year Plan. Take
2009 as an example. According to statistics from the Department of Conservation,
there were 12 heavy metal or sub-metalloid pollution incidents, which affected the
health of 4,035 people due to high levels of lead and cadmium in the blood.
Furthermore, these incidents resulted in 32 mass disturbances [
14
].
According to the statistics of the department of conservation, at least 20 million
hectares of Chinese soil is contaminated by heavy metals at present due to a
combined pollution load of heavy metals and organic pollutants both in suburbs
and sewage-irrigated areas. Mineral processing, smelting, electro plating, plastics,
