Maboeta M S, van Rensburg L
School for Environmental Sciences and Development, Potchefstroom University for Christian Higher Education, Private Bag X6000, Potchefstroom 2520, South Africa.
Ecotoxicol Environ Saf. 2003 Oct;56(2):265-70. doi: 10.1016/s0147-6513(02)00101-x.
Adult Eisenia fetida were used to vermicompost woodchips (WC) and sewage sludge (SS) that are produced as waste product by platinum mines. The aims of the study were to examine the growth and reproductive success of the worms over 84 days to determine long-term feasibility of large-scale implementation and monitor the bioconcentration of heavy metals and the effects of microorganisms inoculation to quantify possible environmental implications. Results revealed that there were no effects on growth (P>0.05), reproductive success decreased (P<0.05), and aluminum (Al), copper (Cu), and nickel (Ni) were bioconcentrated (P<0.05) in the treatment groups without an inoculate. Earthworms in the treatment group with the microorganism inoculate manifested no effects on growth or reproductive success and did not accumulate Al, Cu, and Ni. It is concluded that the only economically feasible way to bioconvert WC and SS to a potential ameliorant of platinum mine tailings would be with the addition of a microorganism inoculate.
使用成年赤子爱胜蚓对铂矿产生的废料木屑（WC）和污水污泥（SS）进行蚯蚓堆肥处理。本研究的目的是在84天内检查蚯蚓的生长和繁殖情况，以确定大规模实施的长期可行性，并监测重金属的生物富集以及微生物接种的效果，从而量化可能的环境影响。结果显示，在未接种的处理组中，对生长没有影响（P>0.05），繁殖成功率下降（P<0.05），并且铝（Al）、铜（Cu）和镍（Ni）发生了生物富集（P<0.05）。接种微生物的处理组中的蚯蚓在生长或繁殖成功率方面没有受到影响，并且没有积累铝、铜和镍。得出的结论是，将木屑和污水污泥生物转化为铂矿尾矿潜在改良剂的唯一经济可行方法是添加微生物接种剂。
