Monitoring of Ammoniacal Nitrogen and Phosphate in the Leachates When Diluted Palm Oil Mill Effluent was Used as a Fertilizer

Q4 Biochemistry, Genetics and Molecular Biology
Nurul Iylia Salleh, T. Phan, S. Lau, Chee-Bee Yeoh, M. Tay
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引用次数: 1

Abstract

Palm oil mill effluent (POME) contains a high amount of nutrients and organic matter; therefore, it has been considered as an alternative liquid fertilizer (LF). However, the studies on the reuse of POME as fertilizer have been mostly limited to nutrients absorption but the leachates were neglected. Such approach caused potential impacts on ground water pollution. Thus, this research aimed to compare the leachabilities of ammoniacal nitrogen (NH3-N) and phosphate (PO43-), as well as the growth rates of oil palm seedlings in three different watering conditions. Six oil palm seedlings were watered with either POME, LF or tap water. The leachates from each seedling pot were collected weekly and analyzed for their NH3-N and PO43- concentrations. The pots which were watered with tap water showed the highest leaching rate of 0.0251 mg.L-1.week-1 for NH3-N and 0.0392 mg.L-1.week-1 for PO43-. The average concentrations of NH3-N in the leachates from the POME, LF and tap water potswere 0.45, 0.38 and 0.36 mg/L, respectively, whereas for PO43-, the average concentrations were 1.09 (POME), 0.96 (LF) and 0.66 (tap water) mg/L. The quickest plant growth rates were recorded in tap water (0.56 cm/day), followed by LF (0.51 cm/day) and POME (0.42 cm/day).
棕榈油厂稀释废水作肥料时渗滤液中氨态氮和磷酸盐的监测
棕榈油厂流出物(POME)含有大量的营养物质和有机物;因此,它被认为是一种可替代的液体肥料。然而,关于磷灰石作为肥料再利用的研究大多局限于养分吸收,而忽视了渗滤液的利用。该方法对地下水污染有潜在影响。因此,本研究旨在比较三种不同浇水条件下氨态氮(NH3-N)和磷酸(PO43-)的浸出率以及油棕幼苗的生长速率。六棵油棕幼苗分别用POME、LF或自来水浇灌。每周收集每个苗盆的渗滤液,分析其NH3-N和PO43-浓度。自来水浸出率最高,为0.0251 mg.L-1。NH3-N和0.0392 mg.L-1。第1周为PO43-。POME、LF和自来水渗滤液中NH3-N的平均浓度分别为0.45、0.38和0.36 mg/L,而PO43-的平均浓度分别为1.09 (POME)、0.96 (LF)和0.66(自来水)mg/L。以自来水处理的植株生长速度最快(0.56 cm/d),其次是LF (0.51 cm/d)和POME (0.42 cm/d)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Borneo Journal of Resource Science and Technology
Borneo Journal of Resource Science and Technology Agricultural and Biological Sciences-Forestry
CiteScore
0.70
自引率
0.00%
发文量
16
审稿时长
12 weeks
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