Influence of sand depth and pause period on microbial removal in traditional and modified biosand filters
JA Napotnik, D Baker, KL Jellison - Water Research, 2021 - Elsevier
Three different-sized biosand filters (ie, the center for Affordable Water and Sanitation
Technology v10 concrete filter, a 5-gal bucket filter, and a 2-gal bucket filter with fine sand …
Technology v10 concrete filter, a 5-gal bucket filter, and a 2-gal bucket filter with fine sand …
Impact of backwashing on nitrification in the biological activated carbon filters used in drinking water treatment
P Laurent, A Kihn, A Andersson… - Environmental …, 2003 - Taylor & Francis
Nitrification during biological filtration is currently used in drinking water production to
remove ammonia, which is the source of several water quality problems during treatment …
remove ammonia, which is the source of several water quality problems during treatment …
Dynamics and functions of bacterial communities in bark, charcoal and sand filters treating greywater
This study explored the effects of greywater application on the dynamics and functions of
biofilms developed in bark, activated charcoal and sand filters used for removal of organic …
biofilms developed in bark, activated charcoal and sand filters used for removal of organic …
Stacked filters: novel approach to rapid sand filtration
MJ Adelman, ML Weber-Shirk, AN Cordero… - Journal of …, 2012 - ascelibrary.org
Rapid sand filters are a familiar and mature technology, but the mechanical sophistication
they incorporate in industrialized nations limits their sustainable application in developing …
they incorporate in industrialized nations limits their sustainable application in developing …
Rapid sand filtration pretreatment for SWRO: microbial maturation dynamics and filtration efficiency of organic matter
Rapid sand filtration (RSF) is used today as an effective pretreatment procedure to enhance
water quality prior to reverse osmosis (RO) membranes in desalination plants. RSF in newly …
water quality prior to reverse osmosis (RO) membranes in desalination plants. RSF in newly …
Physical-chemical mechanisms in slow sand filters
ML Weber-Shirk, RI Dick - American Water Works Association …, 1997 - search.proquest.com
Auxiliary feeds (each 0.5 percent of the flow) sodium with the advent of germ theory,
microbiological parti-cle removal became the paramount objective. Prior to disinfection of …
microbiological parti-cle removal became the paramount objective. Prior to disinfection of …
Visualisation of the establishment of a heterotrophic biofilm within the schmutzdecke of a slow sand filter using scanning electron microscopy
SP Law, MMAL Melvin, AJ Lamb - 2001 - tspace.library.utoronto.ca
The unique feature of slow sand filters is the schmutzdecke, a biofilm formed at the sand-
water interface. Scanning electron microscopy was used to observe the surface of sand …
water interface. Scanning electron microscopy was used to observe the surface of sand …
Importance and characterization of the biological component in slow filters
W Wohanka, T Brand - World Congress on Soilless Culture: Agriculture …, 2000 - actahort.org
In closed irrigation systems plant pathogens might be spread through circulating nutrient
solution. Disinfecting nutrient solution before reuse can prevent this. Slow filtration is a …
solution. Disinfecting nutrient solution before reuse can prevent this. Slow filtration is a …
Hydrologic and pollutant removal performance of stormwater biofiltration systems at the field scale
Biofiltration systems are a recommended and increasingly popular technology for
stormwater management; however there is a general lack of performance data for these …
stormwater management; however there is a general lack of performance data for these …