Operation and Control of a Full-Scale Biogas Plant Treating Wastewater from the Cleaning of Car Tanks

被引：5
作者：
Pfeiffer, Wolfgang [1 ]
Van Than Nguyen [1 ,2 ]
Neumann, Jan [3 ]
Awe, Dirk [4 ]
Traenckner, Jens [2 ]
机构：
[1] Univ Wismar, Dept Mech Engn Proc & Environm Engn, Philipp Muller Str 14, D-23966 Wismar, Germany
[2] Univ Rostock, Fac Agr & Environm Sci, Justus von Liebig Weg 6, D-18059 Rostock, Germany
[3] TS Clean Tank & Siloreinigung Neumann GmbH, Ahorn 9, D-19288 Fahrbinde, Germany
[4] Rotaria Energie & Umwelttech GmbH, Kirchweg 21, D-18230 Rerik, Germany
来源：
CHEMICAL ENGINEERING & TECHNOLOGY | 2020年 / 43卷 / 01期
关键词：
Biogas plants; Digestion process stability; Volatile organic acids; Wastewater treatment; EARLY WARNING INDICATORS; ANAEROBIC CO-DIGESTION; VOLATILE FATTY-ACIDS; FOOD WASTE; MICROBIAL COMMUNITY; PROCESS FAILURE; SLUDGE; PERFORMANCE; REACTOR;
D O I：
10.1002/ceat.201900398
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A 1200-m(3) 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.
引用
收藏
页码：84 / 94
页数：11
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