EurekaMag.com logo
+ Site Statistics
References:
48,253,228
Abstracts:
22,798,842
+ Resolve Accession
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
Submit PDF Full TextSubmit PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

The use of protozoa to indicate changes in the performance of activated sludge plants


, : The use of protozoa to indicate changes in the performance of activated sludge plants. Water Research 25(6): 633-638

A quantitative and qualitative survey of the microfauna at two activated sludge plants in the Leeds area, was carried out on a weekly basis. The frequency of occurrence and order of importance of the different species observed is described. The specific distribution of the protozoal population was found to be dependent upon prevailing environmental factors and plant operating conditions. As these also control be quality of the final effluent, it was possible to correlate plant performance and operating conditions with the distribution of species within the activated sludge reactor. A method for predicting effluent quality and operating conditions from the structure of the protozonal community was derived based on multiple regression analysis. The number of protoza required for a successful prediction was minimized from 31 to 20 without a significant loss of accuracy using stepwise regression techniques.

Order PDF Full Text

Close
Close

Click here to order any other PDF Full Text


Accession: 002530554

DOI: 10.1016/0043-1354(91)90038-r

Download PDF Full Text: The use of protozoa to indicate changes in the performance of activated sludge plants


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Other references

HOHMANN, D., 1962: A case of recurrent traumatic hip luxation in a child. Monatsschrift für Unfallheilkunde und Versicherungsmedizin 65: 452-455

Robertson, P.L.; Schweitzer, M.E.; Bartolozzi, A.R.; Ugoni, A., 1994: Anterior cruciate ligament tears: evaluation of multiple signs with MR imaging. PURPOSE: To assess the accuracy and reliability of multiple signs of anterior cruciate ligament (ACL) tears with magnetic resonance (MR) imaging. MATERiALS AND METHODS: Two independent reviewers retrospectively evaluated 103 sets of ACL MR images...

Gao, F.; Morshed, M.M.; Bashar, S.B.; Zheng, Y.; Shi, Y.; Liu, J., 2015: Electrically pumped random lasing based on an Au-ZnO nanowire Schottky junction. Electrically pumped random lasing based on an Au-ZnO nanowire Schottky junction diode is demonstrated. The device exhibits typical Schottky diode current-voltage characteristics with a turn-on voltage of 0.7 V. Electroluminescence characterization...

Kitagawa, H.; Imashuku, Y.; Yamazaki, T., 2008: The airway scope: an aid also in transesophageal echocardiography probe placement. Journal of Cardiothoracic and Vascular Anesthesia 23(2): 275-275

Wolff, R.K.; Muggenburg, B.A.; Silbaugh, S.A., 1981: Effect of 0.3 and 0.9 micron sulfuric acid aerosols on tracheal mucous clearance in beagle dogs. Tracheal mucous clearance was measured in eight Beagle dogs after 1-h exposures to sulfuric acid mist with particle sizes of 0.3 micron and 0.9 micron mass median aerodynamic diameter (MMAD). The method used was to anesthetize the dogs with haloth...

Hung L.; Lin Y., 1985: Investigations on coccidiasis in the domestic chicken in xiamen fujian china with special reference to the life cycle of eimeria acervulina and its pathology. During 1980-1982, a survey on the species of coccidia from the domestic chicken and the life cycle of Eimeria acervulina together with its pathology were carried out in Xiamen, South Fujian. Species were distinguished in region it parasitized, ave...

Jump, A.S.; Woodward, F.I.n, 2003: Seed production and population density decline approaching the range-edge of Cirsium species. Patterns in population density and abundance, community composition, seed production and morphological traits were assessed across the UK geographical range of Cirsium acaule, Cirsium heterophyllum and Cirsium arvense based on the expectation that...

Bailey, C.C.; Marsden, H.B.; Morris-Jones, P.H., 1978: Fatal pulmonary fibrosis following 1 3 bis 2 chloroethyl 1 nitroso urea therapy. A case is reported of a child with fatal pulmonary fibrosis following BCNU therapy [for a cerebellar tumor]. This side effect was only reported once previously with the nitrosourea group of compounds.

Fournier, D.; Mutero, A.; Pralavorio, M.; Bride, J.M., 1993: Drosophila acetylcholinesterase: mechanisms of resistance to organophosphates. Quantitative and qualitative changes of acetylcholinesterase can affect the sensitivity of insects to insecticides. First, the amount of acetylcholinesterase in the central nervous system is important in Drosophila melanogaster, flies which overex...

Welch, M.; Phillips, R., S., 1999: Enzymatic syntheses of 6-(4H-selenolo(3,2-b)pyrrolyl)-L-alanine, 4-(6H-selenolo(2,3-b)pyrrolyl)-L-alanine, and 6-(4H-furo(3,2-b)pyrrolyl)-L-alanine. 6-(4H-Selenolo(3,2-b)pyrrolyl)-L-alanine 1, 4-(6H-selenolo(2,3-b)pyrrolyl)-L-alanine 2, and 6-(4H-furo(3,2-b)pyrrolyl)-L-alanine 3 have been synthesized via reactions of selenolo(3,2-b)pyrrole, selenolo(2,3-b)pyrrole, and furo(3,2-b)pyrrole, respe...