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P. H. Nielsen
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Journal Articles

Influence of shear on nitrification rates in a membrane bioreactor

M. A. Lou, P. Larsen, P. H. Nielsen, S. N. Bak
Water Sci Technol (2014) 69 (8): 1705–1711.
DOI: https://doi.org/10.2166/wst.2014.070
Date Online: 14 February 2014
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Journal Articles

Irreversible fouling of membrane bioreactors due to formation of a non-biofilm gel layer

E. Poorasgari, P. Larsen, X. Zheng, P. H. Nielsen, K. Keiding ...
Water Sci Technol (2014) 69 (8): 1641–1647.
DOI: https://doi.org/10.2166/wst.2014.068
Date Online: 08 February 2014
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Journal Articles

Comparison of nutrient-removing microbial communities in activated sludge from full-scale MBRs and conventional plants

A. M. Saunders, P. Larsen, P. H. Nielsen
Water Sci Technol (2013) 68 (2): 366–371.
DOI: https://doi.org/10.2166/wst.2013.183
Date Online: 01 July 2013
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Journal Articles

The Microbial Database for Danish wastewater treatment plants with nutrient removal (MiDas-DK) – a tool for understanding activated sludge population dynamics and community stability

A. T. Mielczarek, A. M. Saunders, P. Larsen, M. Albertsen, M. Stevenson ...
Water Sci Technol (2013) 67 (11): 2519–2526.
DOI: https://doi.org/10.2166/wst.2013.151
Date Online: 01 June 2013
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Journal Articles

Digging into the extracellular matrix of a complex microbial community using a combined metagenomic and metaproteomic approach

M. Albertsen, A. Stensballe, K. L. Nielsen, P. H. Nielsen
Water Sci Technol (2013) 67 (7): 1650–1656.
DOI: https://doi.org/10.2166/wst.2013.030
Date Online: 01 April 2013
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Journal Articles

Full-scale control of Mycolata foam by FEX-120 addition

C. Kragelund, B. Nilsson, K. Eskilsson, A. M. Bøgh, P. H. Nielsen
Water Sci Technol (2010) 61 (10): 2443–2450.
DOI: https://doi.org/10.2166/wst.2010.210
Date Online: 01 May 2010
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Journal Articles

Monitoring and troubleshooting of non-filamentous settling and dewatering problems in an industrial activated sludge treatment plant

B. V. Kjellerup, K. Keiding, P. H. Nielsen
Water Sci Technol (2001) 44 (2-3): 155–162.
DOI: https://doi.org/10.2166/wst.2001.0765
Date Online: 01 July 2001
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Journal Articles

Remember the water - a comment on EPS colligative properties

K. Keiding, L. Wybrandt, P. H. Nielsen
Water Sci Technol (2001) 43 (6): 17–23.
DOI: https://doi.org/10.2166/wst.2001.0330
Date Online: 01 March 2001
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Journal Articles

Quantification of the bond energy of bacteria attached to activated sludge floc surfaces

L. H. Mikkelsen, P. H. Nielsen
Water Sci Technol (2001) 43 (6): 67–75.
DOI: https://doi.org/10.2166/wst.2001.0342
Date Online: 01 March 2001
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Journal Articles

In situ detection of cell surface hydrophobicity of probe-defined bacteria in activated sludge

J. L. Nielsen, L. H. Mikkelsen, P. H. Nielsen
Water Sci Technol (2001) 43 (6): 97–103.
DOI: https://doi.org/10.2166/wst.2001.0349
Date Online: 01 March 2001
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Journal Articles

Transformation of lipids in activated sludge

T. E. Dueholm, K. H. Andreasen, P. H. Nielsen
Water Sci Technol (2001) 43 (1): 165–172.
DOI: https://doi.org/10.2166/wst.2001.0040
Date Online: 01 January 2001
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Journal Articles

Use of microautoradiography and fluorescent in situ hybridization for characterization of microbial activity in activated sludge

P. H. Nielsen, K. Andreasen, N. Lee, M. Wagner
Water Sci Technol (1999) 39 (1): 1–9.
DOI: https://doi.org/10.2166/wst.1999.0001
Date Online: 01 January 1999
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Journal Articles

Influence of oxygen limitation on the cell surface properties of bacteria from activated sludge

R. Palmgren, F. Jorand, P. H. Nielsen, J. C. Block
Water Sci Technol (1998) 37 (4-5): 349–352.
DOI: https://doi.org/10.2166/wst.1998.0663
Date Online: 01 February 1998
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Journal Articles

Variability of type 021N in activated sludge as determined by in situ substrate uptake pattern and in situ hybridization with fluorescent rRNA targeted probes

P. H. Nielsen, K. Andreasen, M. Wagner, L. L. Blackall, H. Lemmer ...
Water Sci Technol (1998) 37 (4-5): 423–430.
DOI: https://doi.org/10.2166/wst.1998.0685
Date Online: 01 February 1998
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Journal Articles

A process and model concept for microbial wastewater transformations in gravity sewers

T. Hvitved-Jacobsen, J. Vollertsen, P. H. Nielsen
Water Sci Technol (1998) 37 (1): 233–241.
DOI: https://doi.org/10.2166/wst.1998.0056
Date Online: 01 January 1998
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Journal Articles

Effects of colloidal stability on clarification and dewatering of activated sludge

L. H. Mikkelsen, A. K. Gotfredsen, M. L. Agerbæk, P. H. Nielsen, K. Keiding
Water Sci Technol (1996) 34 (3-4): 449–457.
DOI: https://doi.org/10.2166/wst.1996.0463
Date Online: 01 August 1996
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Journal Articles

Solids: report of the discussion session

P. H. Nielsen, P. Harremoès
Water Sci Technol (1995) 32 (8): 273–275.
DOI: https://doi.org/10.2166/wst.1995.0320
Date Online: 01 October 1995
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Journal Articles

Extraction of extracellular polymeric substances (EPS) from biofilms using a cation exchange resin

A. Jahn, P. H. Nielsen
Water Sci Technol (1995) 32 (8): 157–164.
DOI: https://doi.org/10.2166/wst.1995.0287
Date Online: 01 October 1995
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Journal Articles

Volatile fatty acids and sulfide in pressure mains

T. Hvitved-Jacobsen, K. Raunkjær, P. H. Nielsen
Water Sci Technol (1995) 31 (7): 169–179.
DOI: https://doi.org/10.2166/wst.1995.0226
Date Online: 01 April 1995
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Journal Articles

A Comparative Study of Biopolymers from a Conventional and an Advanced Activated Sludge Treatment Plant

B. Frølund, K. Keiding, P. H. Nielsen
Water Sci Technol (1994) 29 (7): 137–141.
DOI: https://doi.org/10.2166/wst.1994.0326
Date Online: 01 April 1994
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