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Operation and Control of a Full‐Scale Biogas Plant Treating Wastewater from the Cleaning of Car Tanks
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2019-12-11 , DOI: 10.1002/ceat.201900398 Wolfgang Pfeiffer 1 , Van Than Nguyen 1, 2 , Jan Neumann 3 , Dirk Awe 4 , Jens Tränckner 2
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2019-12-11 , DOI: 10.1002/ceat.201900398 Wolfgang Pfeiffer 1 , Van Than Nguyen 1, 2 , Jan Neumann 3 , Dirk Awe 4 , Jens Tränckner 2
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A 1200‐m3 full‐scale biogas plant treating highly polluted wastewater (WW) from the cleaning of tank cars transporting food and fodder is working stably and efficiently despite the WW is constantly varying in strength and composition, is easily acidifying, and low in alkalinity. Na2CO3 has to be added to maintain the digester alkalinity and the digester pH at defined values due to softened water used for car tank cleaning. Monitoring volatile organic acid concentration and controlling the alkalinity in the digester are essential for maintaining the digestion process stability. Biogas production is adapted to the demand by a modulated feeding regime. The drastic modulation of feeding is possible due to the moderate organic loading of the plant along with the high average hydraulic retention time.
中文翻译：
一家大型沼气厂的运行和控制，该沼气厂处理了清洗储罐中的废水
一个1200米3全规模沼气装置从罐车的输送食品和饲料清洁处理高度污染的废水（WW）是工作稳定且有效地，尽管WW在强度和组成不断变化的，很容易酸化，和低碱度。Na 2 CO 3由于用于清洗汽车水箱的软化水，必须添加此溶液以将消化池的碱度和消化池的pH值保持在定义的值。监测挥发性有机酸浓度和控制蒸煮器中的碱度对于维持蒸煮过程的稳定性至关重要。沼气的生产通过调节的饲喂方式适应需求。由于植物的中等有机负荷以及较高的平均水力停留时间，因此可以对饲料进行剧烈调节。
更新日期：2019-12-11
中文翻译：
一家大型沼气厂的运行和控制，该沼气厂处理了清洗储罐中的废水
一个1200米3全规模沼气装置从罐车的输送食品和饲料清洁处理高度污染的废水（WW）是工作稳定且有效地，尽管WW在强度和组成不断变化的，很容易酸化，和低碱度。Na 2 CO 3由于用于清洗汽车水箱的软化水，必须添加此溶液以将消化池的碱度和消化池的pH值保持在定义的值。监测挥发性有机酸浓度和控制蒸煮器中的碱度对于维持蒸煮过程的稳定性至关重要。沼气的生产通过调节的饲喂方式适应需求。由于植物的中等有机负荷以及较高的平均水力停留时间，因此可以对饲料进行剧烈调节。
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