Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 65693
Title Identification and quantification of nitrogen nutrient deficiency in the activated sludge process using respirometry
Author(s) Ning, Z.; Patry, G.G.; Spanjers, H.
Source Water Research 34 (2000)13. - ISSN 0043-1354 - p. 3345 - 3354.
DOI https://doi.org/10.1016/S0043-1354(00)00020-8
Department(s) Sub-department of Environmental Technology
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2000
Keyword(s) afvalwaterbehandeling - pulp- en papierwarenindustrie - geactiveerd slib - stikstof - voedingsstoffentekorten - respirometrie - waste water treatment - pulp and paper industry - activated sludge - nitrogen - nutrient deficiencies - respirometry
Categories Waste Water Treatment
Abstract Experimental protocols to identify and quantify nitrogen nutrient deficiency in the activated sludge process were developed and tested using respirometry. Respirometric experiments showed that when a nitrogen nutrient deficient sludge is exposed to ammonia nitrogen, the oxygen uptake rate (OUR) of the sludge increases while an initial nitrogen nutrient uptake takes place at the same time. Our investigation suggests that this initial nitrogen uptake is metabolically mediated. The protocols developed in this study can be used: (a) to assess whether a sludge sample is nitrogen nutrient deficient or not; and (b) to estimate the amount of nitrogen required to remedy a nutrient deficient condition in the sludge. Finally, a respirometry-based strategy to control nutrient addition to the activated sludge process is proposed. (C) 2000 Elsevier Science Ltd. | Experimental protocols to identify and quantify nitrogen nutrient deficiency in the activated sludge process were developed and tested using respirometry. Respirometric experiments showed that when a nitrogen nutrient deficient sludge is exposed to ammonia nitrogen, the oxygen uptake rate (OUR) of the sludge increases while an initial nitrogen nutrient uptake takes place at the same time. Our investigation suggests that this initial nitrogen uptake is metabolically mediated. The protocols developed in this study can be used: (a) to assess whether a sludge sample is nitrogen nutrient deficient or not; and (b) to estimate the amount of nitrogen required to remedy a nutrient deficient condition in the sludge. Finally, a respirometry-based strategy to control nutrient addition to the activated sludge process is proposed.
Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.