当前位置： SCI文献检索 > SAUDI JOURNAL OF BIOLOGICAL SCIENCES期刊下所有文献 > Pyrolytic and hydrothermal carbonization of date palm leaflets: Characteristics and ecotoxicological effects on seed germination of lettuce.

Pyrolytic and hydrothermal carbonization of date palm leaflets: Characteristics and ecotoxicological effects on seed germination of lettuce.

Abstract：

:Biochar has vital importance as soil additives due to its characteristics, which are responsible for alleviating environmental problems and climate change. These additives should be evaluated to understand their physico-chemical properties and their ecotoxicological effects on plant growth. Therefore, this study aimed to (i) distinguish the properties of biochar produced from date palm and its derivative hydrochar, and (ii) investigate their ecotoxicological effects. Specifically, the biochar and hydrochar were produced from date palm leaflets by pyrolysis and hydrothermal carbonization, respectively. The produced chars were evaluated for their characteristics before and after water washing, and for their ecotoxicological effects on seed germination of lettuce (Lactuca sativa L). The results show that water washing lowered biochar's pH and increased hydrochar's pH. Moreover, water washing of hydrochar caused a significant reduction in the total content of essential elements such as Ca, Mg, Mn, and Zn. Lettuce germination was significantly inhibited to 20% by hydrochar, whereas biochar enhanced lettuce growth by increasing shoot length (by 51%) and dry biomass (by 114%). Hydrochar toxicity was correlated (R > 0.95 at p = 0.05) with high contents of total polyaromatic hydrocarbons (98.8 mg kg-1). Pre-treatment and assessment of hydrochar should be taken into account prior to application as a soil amendment.

journal_name

Saudi J Biol Sci

journal_title

Saudi journal of biological sciences

authors

Al-Wabel MI,Rafique MI,Ahmad M,Ahmad M,Hussain A,Usman ARA

doi

10.1016/j.sjbs.2018.05.017

subject

Has Abstract

pub_date

2019-05-01 00:00:00

pages

665-672

issue

4

eissn

1319-562X

issn

2213-7106

pii

S1319-562X(18)30128-1

journal_volume

26

pub_type

杂志文章

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