Transpiration as landfill leachate phytotoxicity indicator

被引:9
作者
Bialowiec, Andrzej [1 ]
机构
[1] Wroclaw Univ Environm & Life Sci, Inst Agr Engn, Fac Life Sci & Technol, PL-51630 Wroclaw, Poland
关键词
Hydrophytes; Phytotoxicity; Landfill leachate; Transpiration; Constructed wetlands; PHRAGMITES-AUSTRALIS; AGRICULTURAL AREA; SALT TOLERANCE; IRON PLAQUE; TOXICITY; GROWTH; WATER; METALS; POPULATIONS; SENSITIVITY;
D O I
10.1016/j.wasman.2015.02.002
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An important aspect of constructed wetlands design for landfill leachate treatment is the assessment of landfill leachate phytotoxicity. Intravital methods of plants response observation are required both for lab scale toxicity testing and field examination of plants state. The study examined the toxic influence of two types of landfill leachate from landfill in Zakurzewo (L1) and landfill in Wola Pawlowska (I2) on five plant species: reed Phragmites australis (Cav.) Trin. ex Steud, manna grass Glyceria maxima (Hartm.) Holmb., bulrush Schoenoplectus lacustris (L.) Palla, sweet flag Acorus calamus L, and miscanthus Miscanthus floridulus (Labill) Warb. Transpiration measurement was used as indicator of plants response. The lowest effective concentration causing the toxic effect (LOEC) for each leachate type and plant species was estimated. Plants with the highest resistance to toxic factors found in landfill leachate were: sweet flag, bulrush, and reed. The LOEC values for these plants were, respectively, 17%, 16%, 9% in case of leachate L1 and 21%, 18%, 14% in case of L2. Leachate L1 was more toxic than L2 due to a higher pH value under similar ammonia nitrogen content, i.e. pH 8.74 vs. pH 8.00. (c) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:189 / 196
页数:8
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