Feasibility of Wastewater Treatment with Ferrate
Iron (VI) ferrate, (FeO4²-), has been reported to have the potential to act as a coagulant and also a disinfectant...

Cost-Effective Use of Municipal Wastewater Treatment Ponds
Treatment ponds are a cost-effective alternative for municipal wastewater treatment. When compared to other secondary treatment alternatives, ponds are generally the least costly, require...

Laboratory Scale Composting: Studies
The effects of temperature, inoculum type, and mineral concentrations on the laboratory scale composting of a synthetic solid waste have been investigated. The composting activity of the...

Shock Load Attenuation by a Trickling Filter
The property of shock load attenuation by a trickling filter appears to be a result of harboring bacteria at the lower depths of the filter under starvation conditions. When a shock load...

Variable-Order Model of Bacterial-Film Kinetics
A variable-order model provides a closely approximate, explicit solution for the flux of a limiting substrate into a deep fixed bacterial film. The model incorporates concepts of liquid-layer...

Kinetics of Bacterial Deactivation with Chlorine
A power function relating coliform bacteria deactivation to the product of the chlorine contact time, t, and the initial chlorine residual concentration, R, is applied to disinfection...

European Water Treatment Practices — The Promise of Biological Activated Carbon
Bacterial growths occur in all granulated activated carbon columns. In fact, it is difficult to prevent such growths. The Germans now deliberately foster aerobic bacterial growth by providing...

Florida Sewage Plant First to Remove Nutrients with Bacteria Alone — No Need for Costly Chemicals
Palmetto, Florida is now constructing the first advanced wastewater treatment plant in the U.S. to use the Bardenpho process. Unlike other AWT processes, this ingenious plant removes pohosphorus...

Sources of Bacterial Pollution in An Estuary

Factors Affecting Nitrification
Experiments were conducted to determine the effects of various factors upon the rate of nitrate production by a stock culture of nitrifying bacteria. Actively metabolizing heterotrophic...

Energy Recovery in Brewery Industry
The potential for recovering energy via anearobic digestion of byproducts has been investigated for the brewery industry. This process takes advantage of the anaerobic bacteriological...

Design of Trend Monitoring Networks
The design of trend monitoring networks requires specification of both sampling frequencies and station locations. The extended Kalman filter, an algorithm that incorporates the imprecise...

New Approach to Bacterial Kinetics in Wastewater
A mathematical model for bacterial growth is developed by consideration of the analogy between bacterial growth and a nonelementary chemical reaction. The resulting model is very general,...

Nitrogen Transformations in Land Treatment
The storage lagoon of a land treatment system functions as a dynamic biological reactor in which algae and bacteria can transform input nitrogen. A quantitative estimate of these nitrogen...

Shooting Models for Salinity and Coliform
A method for solving the water quality models by a shooting technique was presented for Jamaica Bay. The technique exhibits excellent convergence rates for linear problems and generally...

Water to Air Bacterial Transfer by Bursting Bubbles
This paper reports experimental work relating to the transfer of bacteria from water to the air in a bubble aeration process. The work was initiated to verify the work of Blanchard and...

Virus-Coal Sorption Interaction
An investigation was made on the sorption interaction of coal and a model virus, bacterial virus MS2 versus Escherichia coli. Bituminous coal...

Pilot Plant Program — Treatment of NYC Water Supply
Many cities with upland reservoirs as their source of water are now finding it necessary to filter the water. Population growth in the upland areas and more stringent standards are the...

Upflow Filter for Potable Water Production
It has been indicated in the literature that upflow filtration with polyelectrolyte feed is a viable alternative to conventional treatment for potable water production. The objective of...

Fate of Wastewater Bacteria and Viruses in Soil
Bacterial survival in soil is affected by moisture content, temperature, organic matter, and antagonism by soil microflora. In most instances the survival of bacterial pathogens in the...

 

 

 

 

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