Effects of bleaching wastewater irrigation on soil quality of constructed reed wetlands

Q3 Chemical Engineering

Chemical Speciation and Bioavailability Pub Date : 2016-07-05 DOI:10.1080/09542299.2016.1204249

C. Ding, Wenjun Yang, Aihui Chen, Liqiang Cui, Zhaoxia Li

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引用次数: 2

Abstract

Abstract Constructed reed wetland microcosms (CRWs) in a lab of east China have been irrigated with bleaching wastewater per month for a reed growth season. The soil physicochemical properties, enzyme activities (i.e. urease, invertase, polyphenol oxidase, alkaline phosphatase and cellulase) and soil microbial diversity were assayed before and after the exposure experiment. Compared to the river water irrigated controls (CKs), bleaching wastewater application has no marked influence on soil pH, but significantly increased soil Na+, total halogen and absorbable organic halogen (AOX) contents, which induced the increasing of soil electrical conductivity. Furthermore, soil enzyme activities displayed significant variation (except for polyphenol oxidase). Bleaching wastewater irrigation decreased Sorenson’s pairwise similarity coefficient (Cs), which indicated the changes of the structure of bacterial and fungal communities. However, only the diversity of bacterial community was inhibited and has no effect on the diversity of fungal community, as evidenced by the calculated Shannon–Wiener index (H).

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漂白废水灌溉对人工芦苇湿地土壤质量的影响

摘要/ Abstract摘要:在芦苇生长季，采用漂白废水每月灌溉人工芦苇湿地(CRWs)。测定暴露前后土壤理化性质、酶活性(脲酶、转化酶、多酚氧化酶、碱性磷酸酶和纤维素酶)及土壤微生物多样性。与河水灌溉对照(ck)相比，施用漂白废水对土壤pH值无显著影响，但显著提高了土壤Na+、总卤素和可吸收有机卤素(AOX)含量，导致土壤电导率升高。此外，除多酚氧化酶外，土壤酶活性也存在显著差异。漂白废水灌溉降低了Sorenson’s配对相似系数(Cs)，表明细菌和真菌群落结构发生了变化。但仅抑制了细菌群落的多样性，对真菌群落的多样性没有影响，计算的Shannon-Wiener指数(H)证明了这一点。

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

Chemical Speciation and Bioavailability 环境科学-毒理学

CiteScore

1.62

自引率

0.00%

发文量

审稿时长

1 months

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