Leachate and contact test withLepidium sativumL. to assess the phytotoxicity of waste

被引:25
作者
Bozym, M. [1 ]
Krol, A. [1 ]
Mizerna, K. [1 ]
机构
[1] Opole Univ Technol, Proszkowska 76 St, PL-45758 Opole, Poland
关键词
Lepidium sativum; Lump copper slag; Mineral-organic composite; Phytotoxicity; Sewage sludge; Inc slag; HEAVY-METALS; LEPIDIUM-SATIVUM; COPPER SLAG; SEED-GERMINATION; BOTTOM ASH; L; SLUDGE; GROWTH; TOXICITY; SOIL;
D O I
10.1007/s13762-020-02980-x
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The study evaluated the use ofLepidium sativumL. to assess the phytotoxicity of three types of waste such as hazardous waste (slags from zinc to copper smelters) and nonhazardous waste (mineral-organic composite). Previous studies evaluated heavy metal leaching and the environmental impact of the tested waste. The purpose of phytotoxicity studies was to increase knowledge about this waste. Two types of tests were used to assess the phytotoxicity of wastes: germination index and accumulation test. Both tests were carried out for leachate (leachate test) and waste (contact test). The results of both tests were compared to assess the phytotoxic effects of tested waste. Phytotoxicity tests have shown that the mineral-organic composite leachate was stimulated plant growth, copper smelter slag leachate was characterized by no phytotoxicity and zinc slag leachate inhibited the growth of plants. In contrast, contact test showed inhibitory effects from all tested waste. Wherefore, the contact test was indicated as more sensitive in the assessment of phytotoxicity. However, this is not a clear assessment, because the germination index values for both tests were a result of differences of root length for both control samples (deionized water and sand). The study confirmed the usefulness ofL. sativumfor the assessment of phytotoxicity of various types of waste. Additionally, it was found thatL. sativumwas resistant to high concentrations of heavy metals in the leachate, without causing any negative physiological effects.
引用
收藏
页码:1975 / 1990
页数:16
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