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Bioresource Process Engineering Lab
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A bioresource process engineering lab that turns wastewater and organic waste into resources.
AboutAbout the lab
Turning wastewater and waste into resources
The Bioresource Process Engineering Lab studies technologies such as biomass conversion and waste treatment for building a recycling-oriented society.
Its research has two main areas: purifying water environments and recovering value-added substances using aerobic granules of algae and bacteria, and converting organic waste into resources through methane fermentation.
The granule research is presented as the Water group (Professor Zhongfang Lei), and the methane fermentation research as the Biomass group (Assistant Professor Den Hara).
On the lab's website, a large number of international students and the lab seminar are listed as features of its environment.
Key terms
- Aerobic granules
- Sludge in which algae and bacteria gather into granules. Its settling speed is extremely fast
- Methane fermentation
- A biological treatment method that converts organic waste into biogas and digestate, a fertilizer resource
- Biogas
- A renewable energy produced by methane fermentation. It mainly contains methane and carbon dioxide, along with trace amounts of hydrogen sulfide
ResearchResearch themes
To help solve global issues such as environmental pollution, global warming, and resource depletion, the lab proposes and develops technologies and processes that build on biological treatment methods combined with physicochemical methods. Its research centers on turning wastewater and organic waste into energy, fertilizer, and useful substances.
*Illustrative imageWastewater treatment with aerobic granules
Granular sludge formed by algae and bacteria settles quickly, and from the grown algal granules, alginate-like substances, phosphorus resources, biofuels, and more can be recovered. To improve treatment efficiency and maximize resource recovery, the lab studies optimal operating conditions, designs processes, and conducts benefit analyses.
*Illustrative imageMethane fermentation and biogas upgrading
To use biogas efficiently and safely, the lab develops low-cost upgrading technologies that increase methane concentration and remove hydrogen sulfide. For the use of digestate and CO2, it also studies the value of digestate as a functional liquid fertilizer and ways to add higher value using microalgae.
MembersFaculty
The Bioresource Process Engineering Lab consists of faculty members, professors emeriti, visiting researchers, research fellows, visiting scholars, doctoral and master's students, research students, and undergraduate students.As of 2025
- ProfessorZhongfang Lei
- Assistant ProfessorDen Hara
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Newtown Creek Wastewater Treatment Plant - digester eggs - Greenpoint, Brooklyn, New York” Netherzone / CC BY-SA 4.0 (cropped)
- Wastewater treatment with aerobic granules: “Wolf Creek Wastewater Treatment Plant in Foley, Alabama” Liza6066 / CC BY-SA 4.0 (cropped)
- Methane fermentation and biogas upgrading: “Dry - solid-state anaerobic digestion AD biogas plant” Thzorro77 / CC BY-SA 4.0 (cropped)
- Related lab (Aquatic Environment Ecological Engineering Lab): “Lake water uptake” Ahom04 / CC BY-SA 4.0 (cropped)
- Related lab (Microbial Functions and Applications Lab): “Compound Microscope Image” Ajay Kumar Chaurasiya / CC BY-SA 4.0 (cropped)
- Related lab (Bioprocess Engineering Lab): “Penicillin bioreactor” Matt Brown / CC BY 2.0 (cropped)
- Related lab (Biological Production Machinery Lab): “XAG sprayer robot, Agritechnica 2023, Hanover (P1160327)” MB-one / CC BY-SA 4.0 (cropped)
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