Some observations on the effects of accumulated benthic sludge on the behaviour of waste stabilisation ponds
Some observations on the effects of accumulated benthic sludge on the behaviour of waste stabilisation ponds
The effect of accumulated bottom sludge on water column characteristics was studied in two pilot-scale ponds. Parameters measured were ammonia, nitrate, phosphate, COD, suspended solids, dissolved oxygen (DO), temperature and light intensity. The de-sludged pond showed a stronger correlation between DO, light intensity, nutrients and suspended solids with the controlling factor being availability of nitrogen. This was less apparent in the pond with sludge where nutrient levels were higher and more complex mechanisms controlled biomass concentration. Water column characteristics in the two ponds converged rapidly in 7 - 10 weeks, however, clue to accumulation of fresh sludge.
benthic feedback, sludge, waste stabilisation ponds
217-226
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Heaven, S.
f25f74b6-97bd-4a18-b33b-a63084718571
Zotova, E.A.
00e9bede-a9f7-4390-9b3a-ec1a0b702145
2005
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Heaven, S.
f25f74b6-97bd-4a18-b33b-a63084718571
Zotova, E.A.
00e9bede-a9f7-4390-9b3a-ec1a0b702145
Banks, C.J., Heaven, S. and Zotova, E.A.
(2005)
Some observations on the effects of accumulated benthic sludge on the behaviour of waste stabilisation ponds.
Water Science & Technology, 51 (12), .
Abstract
The effect of accumulated bottom sludge on water column characteristics was studied in two pilot-scale ponds. Parameters measured were ammonia, nitrate, phosphate, COD, suspended solids, dissolved oxygen (DO), temperature and light intensity. The de-sludged pond showed a stronger correlation between DO, light intensity, nutrients and suspended solids with the controlling factor being availability of nitrogen. This was less apparent in the pond with sludge where nutrient levels were higher and more complex mechanisms controlled biomass concentration. Water column characteristics in the two ponds converged rapidly in 7 - 10 weeks, however, clue to accumulation of fresh sludge.
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Published date: 2005
Keywords:
benthic feedback, sludge, waste stabilisation ponds
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Local EPrints ID: 53670
URI: http://eprints.soton.ac.uk/id/eprint/53670
ISSN: 0273-1223
PURE UUID: 66640b5d-7805-4744-a2f1-3f4d274f9a57
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Date deposited: 17 Jul 2008
Last modified: 16 Mar 2024 02:52
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Author:
E.A. Zotova
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