Document Detail


Assessment of diffuser pressure loss on WWTPs in Baden-Württemberg.
MedLine Citation:
PMID:  22049734     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Aeration of activated sludge is a critical treatment step for the operation of activated sludge plants. To achieve a cost effective treatment process, assessing and benchmarking of aeration system performance are important measures. A simple means of gauging the relative condition of a fine bubble diffused aeration system is to evaluate the pressure loss of the diffusers as oxygen transfer tests are rarely applied during the lifetime of an aeration system. This paper shows an assessment of fine bubble diffuser systems in Baden-Württemberg, Germany, based on the results of a questionnaire sent to 941 WWTPs. Apart from the results with regards to the diffuser pressure loss, this paper also presents information on the current state of diffuser technology such as types and materials as well as the diffuser cleaning methods used in Baden-Württemberg. The majority of the WWTPs were equipped with tube diffusers (71%) with 50% of all plants having EPDM membranes installed. Regular mechanical cleaning is the most common cleaning method followed by regular pressure release/air-bumping programs during operations. With regard to the diffuser pressure loss it was found that 50% of the evaluated plants had a diffuser pressure loss that was twice as high as measured for new diffusers.
Authors:
J Krampe
Related Documents :
19569494 - Presumptive benzocaine-induced methemoglobinemia in a slender-tailed meerkat (suricata ...
22049734 - Assessment of diffuser pressure loss on wwtps in baden-württemberg.
23458594 - Patients with hypertensive crises who are admitted to a coronary care unit: clinical ch...
1956734 - Midazolam for conscious sedation during pediatric oncology procedures: safety and recov...
17522524 - The pi3k/akt pathway mediates the nongenomic cardioprotective effects of estrogen follo...
9220274 - Effects of long-term antihypertensive therapy on physical fitness of men with mild hype...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Water science and technology : a journal of the International Association on Water Pollution Research     Volume:  63     ISSN:  0273-1223     ISO Abbreviation:  Water Sci. Technol.     Publication Date:  2011  
Date Detail:
Created Date:  2011-11-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9879497     Medline TA:  Water Sci Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  3027-33     Citation Subset:  IM    
Affiliation:
South Australian Water Corporation, 250 Victoria Square, Adelaide SA 5000, Australia. joerg.krampe@sawater.com.au
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Multiphase modeling study for storm water solids treatment in experimental storm water settling cham...
Next Document:  Oxygen transfer in activated sludge--new insights and potentials for cost saving.