Effect of filter media thickness on the performance of sand drying beds used for faecal sludge management

Abstract

Article:Manga, M, Evans, BE orcid.org/0000-0001-9815-3141, Camargo-Valero, MA orcid.org/0000-0003-2962-1698 et al.(1 more author) (2016) Effect of filter media thickness on the performance of sand drying beds used for faecal sludge management. Water Science and Technology, 74 (12 ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request.Manga M, Evans B E, Camargo-Valero M A, Horan N J (In press). Effect of filter media thickness on the performance of sand drying beds used for faecal sludge management.

Inactivation of viable Ascaris eggs during faecal sludge co-composting with chicken feathers and market waste

“…This result is not surprising especially in developing countries where helminth eggs are rampant [29]. Detailed work on characterisation of raw FS from VIP latrines and septic tanks as well as FS dewatering is presented in our previous work [12]. No Ascaris eggs were detected in the sawdust, market waste and chicken feathers waste samples.…”

“…The composting section consisted of a roof covered composting platform sloping gently towards the leachate drainage channel. The detailed design and construction of the dewatering facility are presented in our previous work [12].…”

“…FS from VIP latrines and septage from vaults and tanks was mixed in a ratio of 1:2 by volume (VIP latrine sludge: septage) and pre-treated by dewatering on sludge drying beds. Detailed work on FS dewatering and characterisation is also presented in our previous work [12].…”

“…This finding is also supported by Pecson et al [49] who found ammonium concentrations (0.2-5.0 g L -1 ) to have been responsible for the significant inactivation of Ascaris eggs in sewage sludge at ≥40°C during the lab-scale experiment. They found the inactivation rate to have varied depending on the total ammonium concentration, pH value (7)(8)(9)(10)(11)(12) and temperatures ≥40°C. However, a significant correlation between Ascaris eggs inactivation and NH 4 -N evolution was not observed in some chicken feathers piles -that is, SCS2 piles (p = 0.084, r = -0.378).…”

Conceptual Behaviour Underpinning the Occurrence of Nonfaecal Matter in Faecal Sludge in Some Urban Communities, Ghana

“…The need for a paradigm shift from the old approaches of addressing sanitation problem is relevant now, since the menace is gradually being detected in unthinkable confined places such as the toilet facilities/faecal sludge (FS). Already, the task of managing high volumes of FS in populated urban areas of most African countries has been unnerving due to urbanisation challenges such as poor living conditions and inadequate FS treatment facilities [ 7 ].…”