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首页> 外文会议>Sustainable irrigation and drainage IV: Management, technologies and policies >Greenhouse gas emission from wastewater irrigated soils
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Greenhouse gas emission from wastewater irrigated soils

机译：废水灌溉土壤的温室气体排放

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摘要

With increasing demand for world water supply, wastewater reuse is a great opportunity to meet the water need, especially for agricultural and industrial development. Wastewater originates from many sources and hence its composition differs from origin and treatment processes. Wastewater rich in organic matter acts as a soil conditioner, thereby enhancing soil health. Wastewater also acts as a source of nutrient input in agriculture which in turn can reduce, or even eliminate the need for commercial fertilisers. However, wastewater usage in agriculture poses several threats like eutrophication, salinity, toxic chemicals (heavy metal(loids), pesticides), pathogen contamination, and most notably, nutrient leaching, and greenhouse gas (GHG) emission. These threats affect public health, soil and ground water resources, environment, crop quality, ecological, and property values. Biological degradation of the organic matter present in wastewater is considered one of the anthropogenic sources of major GHGs (carbon dioxide (CO_2), nitrous oxide (N_2O), and methane (CH_4). In this paper, an overview of various sources of wastewater, effects of wastewater application on GHG emission from soil, and the strategies to mitigate wastewater-induced GHG emission from soils is presented.
机译：随着世界供水需求的增加，废水回用是满足水需求的绝佳机会，特别是对于农业和工业发展。废水来自多种来源，因此其成分与来源和处理过程不同。富含有机物的废水充当土壤改良剂，从而增强土壤健康。废水也是农业中营养输入的来源，进而可以减少甚至消除对商业肥料的需求。但是，农业废水的使用带来了许多威胁，例如富营养化，盐度，有毒化学物质（重金属（农药），农药），病原体污染，最明显的是养分浸出和温室气体（GHG）排放。这些威胁影响公共卫生，土壤和地下水资源，环境，作物质量，生态和财产价值。废水中存在的有机物的生物降解被认为是主要温室气体（二氧化碳（CO_2），一氧化二氮（N_2O）和甲烷（CH_4））的人为来源之一。本文概述了各种废水，介绍了废水处理对土壤温室气体排放的影响，并提出了减少废水引起的土壤温室气体排放的策略。

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  • 来源
  • 会议地点 Adelaide(AU)
  • 作者

    R. Thangarajan; A. Kunhikrishnan; B. Seshadri; N. S. Bolan; R.Naidu;

  • 作者单位

    Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Australia,Cooperative Research Centre for Contaminants Assessment and Remediation of the Environment (CRC CARE), University of South Australia, Australia;

    Chemical Safety Division, Department of Agro-Food Safety, National Academy of Agricultural Science, Republic of Korea;

    Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Australia,Cooperative Research Centre for Contaminants Assessment and Remediation of the Environment (CRC CARE), University of South Australia, Australia;

    Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Australia,Cooperative Research Centre for Contaminants Assessment and Remediation of the Environment (CRC CARE), University of South Australia, Australia;

    Centre for Environmental Risk Assessment and Remediation (CERAR), University of South Australia, Australia,Cooperative Research Centre for Contaminants Assessment and Remediation of the Environment (CRC CARE), University of South Australia, Australia;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    agriculture; greenhouse gas; irrigation; mitigation; wastewater;

    机译：农业;温室气体;灌溉;减轻;废水;

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