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China's largest Dry Anaerobic Digestion Facility in Operation

07-26-2022 03:08 PM CET | Energy & Environment

Press release from: Renergon International AG

Dry Anaerobic Digestion Facility Chongming Island Chona

Dry Anaerobic Digestion Facility Chongming Island Chona

Over the last months, Renergon has been busy with the completion and commissioning of probably China's largest dry anaerobic digestion facility on Chongming Island, near Shanghai.

The plant on Chongming Island treats 65,000 t/a of organic material. About 19,000 t/a wheat straw together with 46,000 t/a liquid pig manure are being processed. The plant has a zero water concept, which means that all liquid animal manure is consumed by the process, and no surplus liquid will be produced.

Biogas is collected from various producers (40m long fermenter boxes, percolate tank, manure tank), and used for electrical power and heat generation. The heat is used for maintaining the process temperature and providing warm air for the aeration boxes.

- 65,000 t/a of wheat straw & liquid pig manure
- Ø570 kWel / Ø625 kWth power generation
- Post-composting for agricultural use
- 15,900 tCO2-eq/a emission savings
- 1,590,000 planted trees equivalent

All processes that might produce odor (solid/liquid separation, biomass-mixing, and aeration/drying) are kept inside the hall, which is ventilated and connected to an air treatment system.

Renergon International AG
Kreuzlingerstrasse 5
8574 Lengwil

Renergon is a global technology leader in the production of clean energy, organic fertilizer, and biochar from a broad range of organic waste streams. We offer state-of-the-art resource recovery technologies such as high solids anaerobic digestion for the municipal, industrial, commercial, and agricultural markets. Our resource recovery facilities stand for sustainability, local added value, and closed material cycles. Focusing on a clean and liveable environment through renewable energy (electricity, heat, biomethane) and fuel (CNG), as well as healthy soils through compost, organic fertilizer, and biochar. While creating new revenue sources for our clients, our technologies are also reducing greenhouse gas emissions.

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