Results 141 to 150 of about 16,117 (183)

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 ...
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +2 more sources

Fecal coliform TMDLs

2003
Two page fact-sheet discussing fecal coliform TMDLs and describing what citizens, municipal officials, and agricultural landowners can do to avoid polluting water bodies.
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +1 more source

Surface streaking and fecal coliform levels

Canadian Journal of Civil Engineering, 1984
The measurement of the dilution and die-off of fecal coliforms in high velocity, wind-generated surface currents is discussed. The dispersion in the streaks is similar to that found in oil slicks. It was found that the high velocities and slower growth rate of the dispersion in the streaks resulted in fecal coliform levels about four times higher than
openaire   +1 more source

Association of Fecal Coliforms With Soil Aggregates

Soil Science, 2009
Manure-home microorganisms and organic particles can move in soils in large interconnected pores or in long macroporcs. These pathways in structured soils are located between soil aggregates or peds. Therefore, interaction with soil aggregates ma y substantially affect the ability of macropores to serve as bacterial conduits.
Andrey K. Guber, Yakov A. Pachepsky, Daniel R. Shelton, Olivia Yu   +3 more
openaire   +1 more source

Fecal coliform densities in a Western watershed

Water, Air, and Soil Pollution, 1982
This paper describes the areal distribution of fecal coliform densities within the stream system of the South Platte River basin in Colorado. Low densities, e.g., 0 to 99 fecal coliforms per 100 ml, were found in mountain streams, while higher densities, e.g., 10000 to 100000 and above were found in plains streams. About 49 % of the plains stations and
PattiJ. Psaris, DavidW. Hendricks
openaire   +1 more source

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
openaire   +2 more sources