Results 91 to 100 of about 1,024 (131)

Intermittent filtration of wastewater—removal of fecal coliforms and fecal streptococci

Water Research, 2002
Removal of fecal coliforms and fecal streptococci was monitored over a period of 13 months in 14 buried pilot scale filters, treating septic tank effluent. The effects of grain size, hydraulic dosing rate and distribution method were investigated. Two different natural sands (sorted sand and unsorted sand) and three different types of light weight ...
G, Ausland, T K, Stevik, J F, Hanssen, J C, Køhler, P D, Jenssen   +4 more
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Load of coliforms and fecal coliforms in dairy desserts in Aswan City

International Journal of Life Science Research Archive, 2022
The dairy desserts are of wide popularity and variety. Also microbiological safety and quality is lack. Seventy five samples of dairy dessert consumed in Aswan City were collected and analyzed for coliforms, fecal coliforms, and E.coli counts. The results revealed that 14 (56%), 9 (36%) and 5(20%) of examined dairy desserts Bellilah, Custard and Om-Ali
null Marwa I Khalifa, null Heba A Dowidar   +1 more
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Extended Acid Digestion for Inactivation of Fecal Coliforms

Water Environment Research, 2006
The objective of this research was to establish a correlation between inactivation of fecal coliforms caused by organic acids in their un‐ionized form in batch acid digesters and semicontinuously fed acid digesters at both mesophilic (38°C) and low‐mesophilic (24°C) temperatures. Batch acid digesters achieved a U.S.
Bartek, Puchajda, Jan, Oleszkiewicz
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Agar Medium for Enumeration of Fecal Coliforms

Journal of Food Science, 1992
ABSTRACT Spread‐inoculated plates of fecal‐coliform agar (FCA) were pre‐incubated 2 hr at 35°C, and then transferred to 44.5°C for 22 hr. Fecal coliforms on FCA produce acids and CO 2 , which react with bromocresol purple and calcium lactate to form yellow to yellow‐green ...
HSING‐CHEN CHEN, SHEU‐DER WU
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Coliforms, fecal coliforms, and fecal streptococci as indicators of water pollution

Water, Air, and Soil Pollution, 1973
The presence and survival of coliforms, fecal coliforms, and fecal streptococci were studied in sewage treatment plants, heavily polluted rivers, a lake, and other drinking water sources. In all cases the fecal streptococci were generally more resistant to the natural water environment and to purification processes than the other indicator organisms ...
Judith Cohen, Hillel I. Shuval
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Beach fecal coliforms

Canadian Journal of Civil Engineering, 1984
A combination of the STORM runoff model and a two-dimensional dynamic lake type model successfully reproduced the fecal coliform levels of an urban beach on a lake in the Ottawa River. The elevated fecal coliform levels were associated with rainfall events and runoff from two large catchments upstream of the beach.
Merv D. Palmer, Raymond J. Dewey
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Regrowth of coliforms and fecal coliforms in chlorinated wastewater effluent

Water Research, 1973
Abstract Observations made both in the field in chlorinated effluent, and in laboratory experiments show that coliforms and fecal coliforms are capable of regrowth in chlorinated wastewater. Under field conditions regrowth of coliforms in chlorinated effluent held in a storage reservoir for about 3 days appeared inversely correlated to: (1) The ...
Hillel I. Shuval, Judith Cohen, Robert Kolodney   +2 more
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FECAL COLIFORM RELEASE FROM CATTLE FECAL DEPOSITS1

JAWRA Journal of the American Water Resources Association, 1984
ABSTRACT: Cowpies molded to a standard configuration and size were subjected to simulated rainfall, and the fecal coliform counts were determined using the most probable number (MPN) method of enumeration. The standard cowpie deposits were exposed to simulated rainfall once at ages 2 through 100 days.
Michael Kress, Gerald F. Gifford
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Coliform-Fecal Coliform Bacterial in Tidal Waters

Journal of the Sanitary Engineering Division, 1968
The fecal coliform-coliform relationship has been examined for several estuaries on Long Island to evaluate proposed fecal coliform standards for shellfish growing waters. The level of fecal coliforms to coliforms was found to vary with source of pollution, level of treatment provided, characteristics of the receiving waters, and precipitation on the ...
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Regrowth of Fecal Coliforms in Class A Biosolids

Water Environment Research, 2006
Eight types of Class A biosolids were tested for fecal coliform (FC) reactivation and/or regrowth at 20, 35, and 50°C for 21 days. Growth of FC did not occur at 20 or 50°C, but it was observed in two samples incubated at 35°C after a lag period of 48 hours. In undigested biosolids, final FC concentration exceeded 10 4 MPN/g, whereas in thermophilically
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