Anaerobic treatment of residuals from tanks transporting food and fodder
Autor: Nguyen V.T., Beyer E., Neumann J., Awe D., Pfeiffer W., Tränckner J.
In:
Environmental Science and Pollution Research
Bandangabe: Volume 26 Auflage: Issue 32 ISBN: Electronic ISSN 1614-7499 Print ISSN 0944-1344 DOI: https://doi.org/10.1007/s11356-018-3876-z Seite: 32698 - 32707 Jahr: 2019
Einordung:
Institut: Professur Wasserwirtschaft
Abstract: 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. Ansprechpartner
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Letzte Änderung des Eintrages:
03.02.2020
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