粪便无害化处理及处理粪便用于蔬菜施肥的卫生学评价

「目的」探讨改进后双瓮漏斗式厕所粪便无害化处理效果及处理后粪便作为肥对土壤和蔬菜的生物性污染的影响。「方法」对处理区和对照区进行了粪便细菌及寄生虫卵检测和人群流行病学调查。「结果」处理后粪液粪大肠菌值〉１０＾－４,寄生虫卵沉降率为９５．０％,和对照区相比,处理区土壤粪大肠菌和蛔虫卵污染程度分别下降了５７．１％和３８．９％,蔬菜中的粪大肠菌和蛔虫卵污染程度分别下降５０．９％和８１．８％;处理区和对照     

赫章半夏土壤环境质量分析与评价

目的 对赫章半夏种植基地土壤污染现状进行评价,旨在为半夏规范化种植基地建设提供科学依据.方法 应用单项污染指数法和综合污染指数法进行评价.结果 该地区土壤的各种污染物的污染指数均小于1,污染水平低于国家标准.结论 赫章半夏种植基地的土壤质量完全符合<中药材生产质量管理规范>(GAP)的相关要求.     

“浙八味”主产地土壤重金属含量分析与评价

目的:了解“浙八味”各主产地土壤重金属的含量现状。方法:采用原子吸收法和原子荧光法测定了浙江省“浙八味”各主产地土壤的镉(Cd)、铅(Pb)、铬(Cr)、汞(Hg)、砷(As)含量,并参照国家颁布的《土壤环境质量标准》(GB15618-1995)和《绿色食品产地环境质量标准》(NY/T391-2000),对其重金属污染作出了评价。结果:Pb、Cr、Cd、Hg、As平均含量分别为27·3,41·8,0·126,0·104,5·47mg·kg-1。结论:目前浙江省“浙八味”各主产地土壤重金属含量虽符合GB15618-1995的要求,但已超过NY/T391-2000的要求。     

Investigating the potential of heavy metal accumulation from hemp. The use of industrial hemp (Cannabis Sativa L.) for phytoremediation of heavily and moderated polluted soils

In the last decades, the pollution of the soil environment with heavy metals poses a significant threat to both rural and urban areas. The effort to find the proper methods for soil decontamination and remediation is of great importance to the scientific community. Phytoremediation can assist in this way considering that it is profoundly (in comparison to traditional approaches) an affordable, less invasive and more environment friendly technique. It is a biological restoration, based on the utilization of special plants, in order to sequester soil pollutants via their root system and effectively remove them from the soil. Industrial hemp (Cannabis sativa L). has an inherent ability to accumulate metals and metalloids in its shoots and roots, as it can easily form stable complexes and compounds with the ions of the elements. Its cultivation in field experiments, and in pots, led to satisfactory results, as it has a short life cycle. Industrial hemp has emerged as a promising crop that can clean up polluted soils. It accumulates mainly in its underground part the pollutants, while its stems and its seeds, used for the production of high value products are almost free of pollutants. In this paper, we present and analyze the results of different studies regarding the capacity of Cannabis sativa L. to accumulate heavy metals and the possible uses of the plant in a circular economy model framework.