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Rock Filters −
Aerated and Unaerated
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Presentation Transcript (includes slides) Presentation
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Aerated rock filters treating facultative pond effluents produce a very high quality
final effluent, so obviating the need for maturation ponds − very useful where land
is expensive or its availability limited.
Supporting Material:
Rock filters are an integral part of a WSP system:
read why here.
Our papers on aerated
rock filters in the UK can be found here.
Papers on unaerated rock filters:
Rock
media polishing filter for lagoons (US EPA Wastewater Technology Fact Sheet,
2002)
Performance evaluation of a simple wastewater treatment
system comprised by UASB reactor,
shallow polishing ponds and coarse rock filter
(WST, 2008)
Simple
wastewater treatment (UASB reactor, shallow polishing ponds, coarse rock
filter)
allowing
compliance with different reuse criteria (WST,
2006)
Coarse
filters for pond effluent polishing: comparison of loading rates and grain
sizes (WST, 2007)
Relative performance
of duckweed ponds and rock filtration as advanced in-pond wastewater
treatment
processes for upgrading waste stabilisation pond effluent: a pilot study
(WST, 2007) – rock filters better!
Upgrading pond effluents: an overview ( WST, 1995)
Quote: "the advantages of rock
filters on a purely cost basis are dramatic."
Upgrading waste stabilization pond effluent by rock
filters ( WST, 1995)
Phosphorus removal
Rock Filters for
Enhanced Phosphorus Removal (University of Leeds, 2007)
Enhanced phosphorus removal in a waste stabilization pond system with blast furnace slag (BFS)
filters (Desalination and Water Treatment, 2009)
Evaluation of electric
arc furnace slag as a potential phosphate-removal substrate (JEE, 2010)
Assessment of
physical techniques to regenerate active slag filters removing phosphorus from
wastewater (Water Research, 2009)
Comparison of phosphorus removal between vertical subsurface
flow constructed wetlands with
different substrates ( Water and Environment Journal, 2009) − actually in unplanted
systems, so
similar to rock filters.
Towards a luxury uptake process via microalgae – Defining
the polyphosphate dynamics ( Water
Research, 2009)
Blast furnace slags
as sorbents of phosphate from water solutions (Water Research, 2005)
Phosphorus removal
mechanisms in active slag filters treating waste stabilization pond effluent
(Environmental Science and Technology,
2008)
Effects of redox
potential and pH changes on phosphorus retention by melter slag filters
treating
wastewater (Environmental
Science and Technology, 2007)
Phosphorus removal
by an ‘active’ slag filter – a decade of full scale experience (Water Research,
2006)
Phosphorus removal
in a waste-stabilization pond containing limestone rock filters (Journal of
Environmental Engineering and Science,
2006)
‘Active’ filters for
upgrading phosphorus removal from pond systems (WST, 2005)
Substrates for
phosphorus removal − Potential benefits for on-site wastewater treatment? (Water
Research, 2006)
See
also:
Factors influencing
luxury uptake of phosphorus by microalgae in waste stabilization ponds
(Environmental Science and Technology,
2007)
Microbial Phosphorus
Removal in Waste Stabilisation Pond Wastewater Treatment Systems
(Licentiate thesis,
Royal Institute of Technology, Stockholm, 2006)
Phosphorus removal in a waste-stabilization pond containing
limestone rock filters ( Journal of
Environmental Engineering and Science,
2006)
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