Open AccessTreatment of sidestream dewatering liquors from thermally hydrolised and anaerobically digested biosolids
Author(s) -
W. Driessen,
J. T. A. Van Veldhoven,
M.P.M. Janssen,
Mark C.M. van Loosdrecht
Publication year - 2020
Publication title -
water practice and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 15
ISSN - 1751-231X
DOI - 10.2166/wpt.2020.007
Subject(s) - biosolids , dewatering , effluent , pulp and paper industry , chemistry , struvite , aeration , sewage treatment , anaerobic digestion , waste management , ammoniacal nitrogen , wastewater , environmental science , resource recovery , sewage , dilution , environmental engineering , methane , engineering , physics , thermodynamics , geotechnical engineering , organic chemistry
A long term operation (22 months) of the sidestream treatment plant at the water and resource recovery facility at the Tilburg sewage works in The Netherlands is presented. This plant treats dewatering reject liquor from thermally hydrolysed (THP) and mesophillic anaerobically digested (MAD) biosolids. The sidestream plant is comprised of a Phospaq struvite reactor for removal and recovery of phosphate and an Anammox reactor for removal of ammoniacal nitrogen. Potential inhibiting characteristics of THP-MAD reject liquor were successfully mitigated by various measures like pre-aeration and addition of dilution water. The sidestream plant demonstrated excellent performance in handling large fluctuations in load and composition, producing effluent with stable low NH4 and BOD concentrations achieving removal efficiencies up to 90% on both NH4 and BOD.
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