The present investigation studied the toxicity of soil contaminated by untreated discharge from a factory that recycles used plastics. The nearby agricultural areas and freshwater fish ponds were polluted with high co...The present investigation studied the toxicity of soil contaminated by untreated discharge from a factory that recycles used plastics. The nearby agricultural areas and freshwater fish ponds were polluted with high concentrations of Cu, Ni, and Mn. Water extracts from the contaminated soil retarded root growth of Brassica chinensis (Chinese white cabbage) and Cynodon dactylon (Bermuda grass) where their seeds were obtained commercially. The contaminated populations of C. dactylon, Panicum repen (panic grass), and Imperata cylindrica (wooly grass) were able to withstand higher concentrations of Cu. Ni, and Mn, especially C. dactylon, when compared with their uncontaminated counterparts. 1990 Academic Press, Inc.展开更多
The feasibility and lookout of injecting plastic scrap into the blast furnace in China were preliminarily investigated according to the inquisition and experimental results. They can provide some references for contro...The feasibility and lookout of injecting plastic scrap into the blast furnace in China were preliminarily investigated according to the inquisition and experimental results. They can provide some references for controlling “white pollution", comprehensive utilizing of plastic scrap and saving energy for metallurgical processes in China.展开更多
文摘The present investigation studied the toxicity of soil contaminated by untreated discharge from a factory that recycles used plastics. The nearby agricultural areas and freshwater fish ponds were polluted with high concentrations of Cu, Ni, and Mn. Water extracts from the contaminated soil retarded root growth of Brassica chinensis (Chinese white cabbage) and Cynodon dactylon (Bermuda grass) where their seeds were obtained commercially. The contaminated populations of C. dactylon, Panicum repen (panic grass), and Imperata cylindrica (wooly grass) were able to withstand higher concentrations of Cu. Ni, and Mn, especially C. dactylon, when compared with their uncontaminated counterparts. 1990 Academic Press, Inc.
文摘The feasibility and lookout of injecting plastic scrap into the blast furnace in China were preliminarily investigated according to the inquisition and experimental results. They can provide some references for controlling “white pollution", comprehensive utilizing of plastic scrap and saving energy for metallurgical processes in China.
