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2018 Fiscal Year Annual Research Report

A Sustainable and Recycling-oriented Wastewater Industry by Maximizing Valuable Resources and Energy Recovery Using the Novel Algal-bacterial Aerobic Granular Sludge Technology

Research Project

Project/Area Number 18H03403
Research InstitutionUniversity of Tsukuba

Principal Investigator

雷 中方  筑波大学, 生命環境系, 准教授 (30634505)

Co-Investigator(Kenkyū-buntansha) 水野谷 剛  筑波大学, 生命環境系, 准教授 (10500770)
清水 和哉  筑波大学, 生命環境系, 准教授 (10581613)
張 振亜  筑波大学, 生命環境系, 教授 (20272156)
Project Period (FY) 2018-04-01 – 2022-03-31
KeywordsAlgal-bacterial granule / Resource recovery / Energy recovery
Outline of Annual Research Achievements

The achievements can be summarized as follows.
(1) The influent to a local activated sludge-based wastewater treatment plant (WWTP) in Ibaraki Prefecture has been analyzed and characterized, which provides useful information for the preparation of synthetic wastewater used in the lab. The general energy and resources recovery potential has also been estimated in the context of this WWTP.
(2) Our experiments proved that the mixture algae separated and cultivated from the algal-bacterial granules could form algae granules successfully under the designed operation conditions, and the formed algae granules with good settleability and pollutants removal contained highly bioavailable P.
(3) Some typical operation conditions including light illumination, low carbon wastewater, and no mechanical aeration have been examined on the stability and performance of the algal-bacterial granules, which will be further optimized in the coming year. The dynamic changes in biological communities have also been analyzed under the test conditions.
(4) Two major algae species have been isolated from the mature algal-bacterial granules with their functions being identified, which showed excellent nutrients (N and P) removal and aggregation capability. Currently these two algae species together with two commercially functional algae are still being tested for their granulation capability and operation stability.
The above results have been partially summarized in 7 publications in high quality journals and 4 presentations in domestic/international conferences. Another 4 papers are still under review.

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

This is a four-year project. Up to the present, we almost did 1/3~1/2 of the designed experiments. Hope we could achieve more meaningful results in the coming year.

Strategy for Future Research Activity

In the coming year, we will continue this research which mainly focuses on the following aspects:
(1) We’ll further identify and confirm the aggregation and resources accumulation capabilities of the two major algae species isolated from the mature algal-bacterial granules.
(2) Comparison will be conducted among the two major algae species isolated from the mature algal-bacterial granules and the commercially functional algae like Ankistrodesmus sp..
(3) Four typical lab-scale wastewater treatment systems, including a)S1 and S2, a batch- and continuous-flow activated floc sludge systems, and b) S3 and S4, a batch- and a continuous-flow algal-bacterial granule systems, will be established and operated. Much attention will be paid to pollutants removal, resources accumulation, biomass production, and energy consumption and recovery.
Results from the above works will be used for the optimization of the lab-scale algal-bacterial granule system.

  • Research Products

    (15 results)

All 2019 2018 Other

All Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 7 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (4 results)

  • [Journal Article] Granulation of activated sludge using butyrate and valerate as additional carbon source and granular phosphorus removal capacity during wastewater treatment2019

    • Author(s)
      Cai W., Huang W., Lei Z.*, Zhang Z., Lee D.-J., Adachi Y.
    • Journal Title

      Bioresource Technolgy

      Volume: 282 Pages: 269-274

    • DOI

      https://doi.org/10.1016/j.biortech.2019.03.017

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stability and performance of algal-bacterial granular sludge in shaking photo-sequencing batch reactors with special focus on phosphorus accumulation2019

    • Author(s)
      Zhao Z., Liu S., Yang X., Lei Z.*, Shimizu K., Zhang Z., Lee D.-J., Adachi Y.
    • Journal Title

      Bioresource Technology

      Volume: 280 Pages: 497-501

    • DOI

      https://doi.org/10.1016/j.biortech.2019.02.071

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparative study on hydrothermal treatment as pre- and post-treatment of anaerobic digestion of primary sludge: Focus on energy balance, resources transformation and sludge dewaterability2019

    • Author(s)
      Yuan T., Cheng Y., Zhang Z., Lei Z.*, Shimizu K.
    • Journal Title

      Applied Energy

      Volume: 239 Pages: 171-180

    • DOI

      https://doi.org/10.1016/j.apenergy.2019.01.206

    • Peer Reviewed
  • [Journal Article] Light illumination initialed the formation of algal-bacterial granules and effected the granular oxygen distribution and nutrients removal mechanisms2019

    • Author(s)
      Meng F., Xi L., Liu D., Huang W., Zhang Z., Huang W., Lei Z.
    • Journal Title

      Bioresource Technology

      Volume: 272 Pages: 473-481

    • DOI

      https://doi.org/10.1016/j.biortech.2018.10.059

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Algae granulation for nutrients uptake and algae harvesting during wastewater treatment2019

    • Author(s)
      Cai W., Zhao Z., Li D., Lei Z., Zhang Z., Lee D.-J.
    • Journal Title

      Chemosphere

      Volume: 214 Pages: 55-59

    • DOI

      https://doi.org/10.1016/j.chemosphere.2018.09.107

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Response of algal-bacterial granular system to low carbon wastewater: Focus on granular stability, nutrients removal and accumulation2018

    • Author(s)
      Zhao Z., Yang X., Cai W., Lei Z., Shimizu K., Zhang Z., Utsumi M., Lee D.-J.
    • Journal Title

      Bioresource Technology

      Volume: 268 Pages: 221-229

    • DOI

      https://doi.org/10.1016/j.biortech.2018.07.114

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Hydrothermal carbonization of anaerobic granular sludge: Effect of process temperature on nutrients availability and energy gain from produced hydrochar2018

    • Author(s)
      Yu Y., Lei Z., Yang X., Yang X., Huang W., Shimizu K., Zhang Z.
    • Journal Title

      Applied Energy

      Volume: 229 Pages: 88-95

    • DOI

      https://doi.org/10.1016/j.apenergy.2018.07.088

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Response of algal-bacterial granular system to low carbon wastewater: Focus on granular stability, nutrients removal and accumulation2018

    • Author(s)
      Ziwen Zhao, Xiaojing Yang, Wei Cai, Zhongfang Lei, Kazuya Shimizu, Zhenya Zhang, Motoo Utsumi, Duu-Jong Lee
    • Organizer
      日本水処理生物学会第55回大会
  • [Presentation] 消化汚泥嫌気処理における塩化マグネシウムの添加による窒素およびリン濃度への影響2018

    • Author(s)
      河村康平, 原田, 雷中方, 清水和哉, 張振亜
    • Organizer
      日本水処理生物学会第55回大会
  • [Presentation] Recent Research Progress on Sustainable Management of Manure Waste through Energy and Resources Recovery2018

    • Author(s)
      Zhongfang Lei, Zhenya Zhang
    • Organizer
      2018 Symposium on Technological Innovations in Environmental Pollution Control and Resources Recovery & Utilization
    • Int'l Joint Research / Invited
  • [Presentation] Research on Wastewater Treatment in Tsukuba2018

    • Author(s)
      Zhongfang Lei, Zhenya Zhang
    • Organizer
      The China-Japan Joint Seminar on Water Environment Technology
    • Int'l Joint Research / Invited
  • [Remarks] 筑波大学研究者総覧

    • URL

      https://trios.tsukuba.ac.jp/researcher/0000003223

  • [Remarks] Researchgate

    • URL

      https://www.researchgate.net/profile/Zhongfang_Lei

  • [Remarks] Google scholar

    • URL

      https://scholar.google.com/citations?hl=zh-CN&user=VLVoKUsAAAAJ

  • [Remarks] Researchmap

    • URL

      https://researchmap.jp/Lei_Zhongfang/

URL: 

Published: 2019-12-27  

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