| 摘要: |
| 阐述了慢滤系统抑制营养液中土传病原菌的原理及装置特点,对慢滤装置的抑菌效果进行了综合分析和评价.慢滤系统通常选用多空隙、吸附力强的物质作为过滤介质,待处理的液体从一定高度以一定流速通过慢滤装置,使其与过滤介质充分作用在不影响营养液中的有益微生物的前提下,通过过滤、吸附等物理化学作用达到去除病原菌.通常在小粒径、低流速的情况下能够达到较好的消毒效果,且过滤前后营养液的物理化学参数基本没有变化.但是过滤介质、过滤柱高度及外界因素变化如加热、通风等都会影响过滤效果.同时慢砂滤不会破坏营养液中的微生物,是一种可以在小面积无土栽培体系中广泛使用的消毒手段. |
| 关键词: 慢滤 土传病原菌 抑菌 粒径 流速 |
| DOI：10.11841/j.issn.1007-4333.2009.01.002 |
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| 基金项目:国家科技支撑计划? |
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| Study and application of slow filter for fungi removal |
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| Abstract: |
| The disinfection principle and the structural character of slow filter were described,and the disinfection effect was synthetically estimated.The slow filter removed fungi from nutrient solution without hurting the available microbe by the physics and chemistry action such as filtration and adsorption.The better disinfection effect can be achieved in the condition of small grain size and slow filtration rate.Also the physics and chemistry parameters were not changed. |
| Key words: slow filter root-infecting pathogen disinfection grain size filtration rate |
