Two 2,000 m³ Integrated Biogas Holders Successfully Commissioned at Potato-Industry Wastewater Treatment Project in Gansu Province
Recently, a major milestone was reached at a potato-industry (potato starch processing) wastewater treatment project in Gansu Province, China — two 2,000-cubic-meter integrated biogas holders passed commissioning tests and officially entered operation. As a key environmental initiative to promote green, low-carbon development of the local potato processing industry and deepen the resource utilization of agricultural waste, the project marks a significant breakthrough in the treatment of high-strength organic wastewater from potato processing in Gansu Province.
Project Background: Wastewater from potato starch production is characterized by high COD, high suspended solids, and high acidity — widely recognized as one of the most challenging industrial effluents to treat. The project adopts a comprehensive treatment process of "pretreatment + anaerobic digestion + biogas recovery and utilization + advanced aerobic treatment," in which the efficient collection and storage of biogas is the critical link to converting waste into reusable energy.
Equipment Highlights: The two 2,000 m³ integrated biogas holders commissioned this time feature the following technical advantages:
Integrated structure: Combining gas storage, pressure regulation, pressure stabilization, and safety water sealing in one unit — short on-site installation period and small footprint;
Corrosion resistance: Equipped with a dedicated anti-corrosion liner and corrosion-resistant steel, designed for the high-sulfur biogas generated by anaerobic digestion of potato-industry wastewater, ensuring long service life;
Intelligent operation: Fitted with online monitoring, over-pressure alarms, automatic venting, and other smart control systems for safe and stable operation;
Energy saving and emission reduction: The recovered biogas can be reused for boiler combustion or power generation within the plant, delivering dual benefits of pollution control and clean energy production.
