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Performance, water quality and enviro-economic investigations on solar distillation treatment of reverse osmosis reject and sewage water

机译:太阳蒸馏法处理反渗透废品和污水的性能,水质和环境经济研究

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摘要

In this work, effective treatment of RO reject and domestic sewage water in a single step using indigenously developed tilted solar distillation unit has been proposed. Behavior of the unit along with its characteristics, treated water quality, environmental benefits and economics has been reported based on experimental observations. Around, 4.79 and 4.48 L/d of treated water are produced by the unit at a thermal efficiency of 48.5% and 45.3% during RO reject and sewage water distillation, respectively. Suspended particles of re-circulated sewage water caused clogging of wick and affected tilted solar distillation unit's performance and efficiency. Smooth operation of the unit is noticed during RO reject distillation. The proposed unit could prevent at least 23.73 tons of CO2, 158.54 kg of SO2 and 64.75 kg of NO emissions during its 20 Yr life span. Wick replacement frequency and interest rate have a signification impact on distillation unit's treated water production cost. The proposed distillation unit's treated water production cost is lower than basin solar stills reported in literatures. Treated water is clear, odor free and bacterial free. Physical properties and heavy metal concentrations of treated water are well within the standards for safe drinking water except BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand) such that the treated water can be used for other domestic and irrigation purposes. The results obtained from this study confirm solar distillation as an effective and sustainable option for wastewater treatment.
机译:在这项工作中,已经提出了使用本地开发的倾斜太阳能蒸馏装置一步一步有效处理反渗透废料和生活污水的方法。根据实验观察,已经报道了该单元的行为及其特性,处理后的水质,环境效益和经济性。在RO废液和污水蒸馏过程中,该装置分别产生约4.79 L / d和4.48 L / d的处理水,热效率分别为48.5%和45.3%。再循环污水的悬浮颗粒导致棉芯堵塞,并影响倾斜的太阳能蒸馏装置的性能和效率。在RO废液蒸馏过程中,设备运行平稳。拟议中的装置在其20年寿命期内,至少可以防止二氧化碳排放23.73吨,二氧化硫158.54千克和一氧化氮64.75千克。灯芯更换频率和利率对蒸馏装置的处理水生产成本有重大影响。拟议的蒸馏装置的处理水生产成本低于文献中报道的流域太阳能蒸馏器。经处理的水清澈,无臭,无细菌。除BOD(生物需氧量)和COD(化学需氧量)外,处理后的水的物理性质和重金属浓度均在安全饮用水标准之内,因此处理后的水可用于其他家庭和灌溉目的。从这项研究中获得的结果证实了太阳能蒸馏是废水处理的有效且可持续的选择。

著录项

  • 来源
    《Solar Energy》 |2018年第10期|160-172|共13页
  • 作者单位

    Indian Inst Technol Madras, Dept Mech Engn, Heat Transfer & Thermal Power Lab, Madras 600036, Tamil Nadu, India;

    Indian Inst Technol Madras, Dept Civil Engn, Environm & Water Resources Engn Div, Madras 600036, Tamil Nadu, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Solar distillation; Wastewater treatment; RO reject; Enviro-economic analyses;

    机译:太阳蒸馏;废水处理;RO废渣;环境经济分析;
  • 入库时间 2022-08-18 04:06:42

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