Impacts of disinfected wastewater irrigation on soil characteristics, microbial community composition, and crop yield

IF 2.3 Q3 ENVIRONMENTAL SCIENCES
Lays Paulino Leonel, Ariane Bize, M. Mariadassou, C. Midoux, Jerusa Schneider, A. L. Tonetti
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引用次数: 2

Abstract

For agricultural reuse, the disinfection treatment must be efficient to inactivate the resistant pathogens and must not generate harmful byproducts for the soil and crop production. Thus, the aim of this work was to evaluate the possible impacts caused by the irrigation with wastewater disinfected with sodium hypochlorite, peracetic acid, ultraviolet radiation, or the oxidation process UV radiation combined with hydrogen peroxide over soil physicochemical properties and microbial community composition, as well as over the wheat crop yield in the short term. A pot essay was performed in a greenhouse, and at the end the main alterations observed in soil physicochemical properties were due to water type, not to the disinfection treatments. The crop yield was influenced by the water type, but not by the disinfectant treatments. Irrigation with wastewater improved almost 5 times the wheat grains yield, compared with freshwater. Wastewater irrigation increased the abundance of families involved in organic matter degradation and nitrogen cycle, and some pathogenic bacteria. Among the disinfectant treatments, the UV disinfection played an important role in shaping soil bacterial community structure.
消毒废水灌溉对土壤特性、微生物群落组成和作物产量的影响
对于农业再利用,消毒处理必须有效地灭活耐药病原体,并且不得对土壤和作物生产产生有害的副产品。因此,这项工作的目的是评估用次氯酸钠、过乙酸、紫外线辐射消毒的废水灌溉,或紫外线辐射与过氧化氢结合的氧化过程对土壤物理化学性质和微生物群落组成以及短期内对小麦产量的可能影响。在温室中进行了盆栽试验,最后观察到土壤理化性质的主要变化是由于水的类型,而不是消毒处理。作物产量受水分类型的影响,但不受消毒处理的影响。与淡水灌溉相比,废水灌溉使小麦产量提高了近5倍。废水灌溉增加了参与有机物降解和氮循环的家庭数量,以及一些致病菌。在消毒处理中,紫外线消毒对土壤细菌群落结构的形成起着重要作用。
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
Blue-Green Systems
Blue-Green Systems Multiple-
CiteScore
8.70
自引率
0.00%
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