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首页> 外文期刊>Chemical engineering journal >Technology feasibility and economic viability of an innovative integrated ceramic membrane bioreactor and reverse osmosis process for producing ultrapure water from municipal wastewater
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Technology feasibility and economic viability of an innovative integrated ceramic membrane bioreactor and reverse osmosis process for producing ultrapure water from municipal wastewater

机译：创新型陶瓷膜生物反应器的技术可行性和经济可行性，从城市废水中纯水生产超渗透性渗透性工艺

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摘要

Nowadays, it has been widely accepted that the production of ultrapure water (e.g. NEWater in Singapore) from municipal wastewater reclamation is a promising alternative to alleviate the severe water scarcity. However, the current NEWater production process is extremely complicated, with intensive excess sludge production and large footprint. To address these emerging issues, an innovative process integrating moving bed ceramic membrane bioreactor (MBCMBR) and reverse osmosis (RO) was developed for reclamation of municipal wastewater to ultrapure product water. In this process, the MBCMBR was developed for simultaneous COD and nitrogen removal, while RO was designed for ultrapure water production. The results obtained under different DO conditions showed that more than 99.7% of COD and 96.7% of total nitrogen were removed in the MBCMBR-RO process. It was demonstrated that the product water could meet the NEWater and Chinese Class IV standards in terms of total organic carbon, ammonium, nitrate and phosphate, with an insignificant RO membrane fouling propensity evidenced by a dTMP/dt smaller than 0.06 bar/day. In addition, more than 36% and 60% of reduction in footprint and excess sludge production could be achieved in the proposed integrated process against the current NEWater production process. Moreover, the NEWater-like product water produced from the MBCMBR-RO process can be safely discharged to any surface water, while it can also be supplied to various industrial sectors at an attractive commercial price. Consequently, this study offers an innovative approach for producing ultrapure water from municipal wastewater with small footprint, less sludge production and remarkable economic viability.
机译：如今，已被广泛接受，从市政废水填海过程中生产超纯水（例如新加坡）是一种有前途的替代方案，可以缓解严重的水资源稀缺。然而，目前的新型生产过程极其复杂，具有密集的过量污泥生产和大型占地面积。为了解决这些新兴问题，开发了一种集成移动床陶瓷膜生物反应器（MBCMBR）和反渗透（RO）的创新过程，以便将城市废水的封入超纯产品水。在此过程中，MBCMBR是为同时鳕鱼和氮去除而开发的，而RO专为超纯水生产而设计。在不同的情况下获得的结果表明，在MBCMBR-RO法中除去超过99.7％的COD和96.7％的总氮。有人证明，在总有机碳，铵，硝酸盐和磷酸盐方面，产品水可以满足德国和中国级等级标准，具有小于0.06巴/天的DTMP / DT的无关头的RO膜污垢倾向。此外，在拟议的综合工艺中，可以实现超过36％和60％的占地面积和过量的污泥生产，以促进当前的换算过程。此外，由MBCMBR-RO工艺生产的新产品水可以安全地排出到任何地表水，而它也可以以有吸引力的商业价格提供给各种工业部门。因此，该研究提供了一种创新方法，可以从城市废水中生产超空间，污泥生产小，污泥生产较少，经济可行性。

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  • 来源
    《Chemical engineering journal》 |2019年第2019期|共10页
  • 作者

    Wang Siyu; Liu Hang; Gu Jun; Sun Huifang; Zhang Meng; Liu Yu;

  • 作者单位

    Nanyang Technol Univ Nanyang Environm &

    Water Res Inst Adv Environm Biotechnol Ctr 1 Cleantech Loop Singapore 637141 Singapore;

    Nanyang Technol Univ Nanyang Environm &

    Water Res Inst Adv Environm Biotechnol Ctr 1 Cleantech Loop Singapore 637141 Singapore;

    Nanyang Technol Univ Nanyang Environm &

    Water Res Inst Adv Environm Biotechnol Ctr 1 Cleantech Loop Singapore 637141 Singapore;

    Nanyang Technol Univ Nanyang Environm &

    Water Res Inst Adv Environm Biotechnol Ctr 1 Cleantech Loop Singapore 637141 Singapore;

    Nanyang Technol Univ Nanyang Environm &

    Water Res Inst Adv Environm Biotechnol Ctr 1 Cleantech Loop Singapore 637141 Singapore;

    Nanyang Technol Univ Nanyang Environm &

    Water Res Inst Adv Environm Biotechnol Ctr 1 Cleantech Loop Singapore 637141 Singapore;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    Municipal wastewater reclamation; Moving bed biofilm bioreactor; Ceramic membrane; Reverse osmosis; NEWater; Footprint;

    机译：市污水填海;搬家床生物膜生物反应器;陶瓷膜;反渗透;换下的;足迹;

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