Toxicity Bioassay Using Nitrifying Bacteria
Monitoring water quality by the use of toxicity bioassay was studied with respect to the interrelationship between nitrifying activities, ammonium and inorganic compounds. Differential...

Anoxic-Aerobic Activated Sludge Treatment
An activated sludge system was operated at a relatively low SRT of 1-2 days at the City of Phoenix to meet secondary treatment requirements. Operating MLSS concentrations were 400-600...

Products of Chloramination in Dilute Aqueous Solution
Chloride and nitrate formation was determined in the reaction of chlorine with ammonia in molar excess, in dilute aqueous solution. Nitrate was formed under all conditions investigated....

O2 Limitations in CH4 and NH4+ Utilizing Biofilms

Load-Detention Efficiencies in a Dry-Pond Basin
Inflow and outflow to a dry-pond detention basin in Topeka, Kansas, were monitored for 19 storms during a 14-month period. Samples of runoff were collected automatically at two inflow...

Florida and Hawaii's Renewable Energy Partnership

Evaluation of Water Quality from a Drainage-Subirrigation System in Georgia
Nitrate-N, Ammonium-N and Phosphate-P concentrations were measured from shallow subsurface wells and outlets of a drainage-subirrigation system in the Georgia flatwoods for comparison...

Chloramines: A Better Way?
Chlorination of drinking water has been linked to the formation of carcinogenic trihalomethanes (THMs). By adding ammonia to the water, the chlorine becomes chloramines which don't...

Implications of Nitrogen Transport by the Okanagan River
The long-term mean of total nitrogen load estimated in the river channel above the inlet to Skaha Lake is 906 lb day** minus **1. The apportionment of ammonia and nitrate plus nitrite...

The Use of Activated Carbon as a Polishing Step for Treatment of Industrial Plating Wastewaters
An activated carbon adsorption process was utilized as a polishing step following the precipitation (hydroxide or sulfide) process. Zinc and cadmium were the metals studied. Since plating...

Program for Control of Petroleum Refinery Wastewater
The Sanitation Districts of Los Angeles County (LACSD) provide wastewater treatment services to approximately four million residents and eight thousand industrial companies. Large and...

Modeling Un-Ionized Ammonia with HSPF

Chloramine Disinfection for THM Control

Water Disinfection Schemes for Reduced THN Production

Effluent Ammonia Variability from Nitrification Plants

Pilot Plant Study of Treatment Options for Producing Potable Water at Thornton, Colorado

Effluent Limitations and Their Relationship to Ammonia Stream Standards for Aquatic Life

Oxidative and Non Oxidative Ammonia Modeling

Halogenated Byproduct Formation by ClO2 and Cl2
The formation of halogenated organic byproducts, resulting from treating wastewater effluents with chlorine dioxide and chlorine, was studied in laboratory experiments. Total trihalomethanes...

Grid on Elastic Foundation with Rotational Restraints
Mathematical models of aquatic systems frequently represent phytoplankton growth dynamics in nutrient limited environments by saturation or Michaelis-Mention type kinetics. When nitrogen...

 

 

 

 

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