Study on Enrichment of Heavy Metal Pb~(2+) in Water by Alternanthera Philoxeroides;

The origin and enrichment of gold in gulch-gold mines located in northern region of Heilongjiang Province;

Advantages and Disadvantages of Heavy Metal Enrichment in Medicinal Animals and Plants;

Earthworm (Eisenia foetida) was fed with bait mixture of cattle manure, sodium selenite and tailing sand from a copper mine in order to evaluate its accumulation on selenium and copper with an aid of determination of metals contents in the animals bodies.

Simulation experiments on the accumulation of gold by cyanobacteria and green algae showthat: (1) Bacteria and algae have remarkable gold-enriching ability,but the enrichment ability differsamong different taxa; the enrichment ability of cyanobacteria iS stronger than that of green algae.

The accumulation of heavy metals in mycelia of Qilingu and the effects of heavy metals on the growth of this fungus were investigated.

Surfactant molecular not only has differential aggregation pattern in solution but also occura aggregate phenomenon in organic solvents, evenformes liquid crystal,the thermodynamical theory of hydrophobic effect of these aggregations has been discussed.