@inproceedings{2df52c75a3f94d6c8439dd2a64b2aaf5,
title = "Enhanced efficiency of industrial-scale anaerobic digestion by the addition of glycosidic enzymes",
abstract = "The results of the action of two glycosidic enzymes added to an anaerobic digester processing mixed wastewater sludge are reported in this paper. The experiment was performed at a continuously operating full-scale wastewater treatment plant during a 6-month period. The addition of the enzyme mixture resulted in improved gas production and dewatering properties. Dewatering experiments, both on enzyme-treated and reference sludge on the local centrifuges, indicated that the carbonaceous matter was decreased by 7% in enzyme-treated sludge, and the average dry solids increased from 27% (reference) to 31% in enzyme-treated sludge. The polymer dosage was decreased from 8 to 5 kg/t dry solids. Additionally, practical experiences were gathered concerning the transformation from static laboratory-scale batch experiments to a dynamic continuous industrial scale setup. Preliminary cost calculations showed beneficial aspects and economical feasibility of enzyme addition to an anaerobic sludge digestion process.",
keywords = "full-scale, sludge, enzyme addition, anaerobic digestion, biosolids",
author = "Michael Recktenwald and Joanna Wawrzynczyk and Estera Dey and Olof Norrl{\"o}w",
year = "2008",
doi = "10.1080/10934520802293693",
language = "English",
volume = "43",
publisher = "Taylor & Francis",
number = "13",
pages = "1536--1540",
booktitle = "JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING",
address = "United Kingdom",
note = "IWA Specialist Conference on Facing Sludge Diversities ; Conference date: 28-03-2007 Through 30-03-2007",
}