Simple Hydrologic Modeling
Several simple models for estimating precipitation and evapotranspiration from a limited data base are discussed. Rainfall probabilities may be calculated from mean monthly rainfall. Depth-duration-frequencies...
Hydraulics and Hydrology of Border Irrigation
Proper description of the hydraulics of irrigation of farmland is necessary in management. Many descriptions of furrow or border irrigation are not adequate to describe truly physically...
Realistic Hydrology for Basin Management
Several realistic yet simple methods to describe infiltration, soil moisture redistribution, aquifer recharge, canal seepage and stream-aquifer interaction in a river basin are presented...
Assessing Irrigation Impact on Instream Flow
A hydrologic model to help river system managers determines the demand for irrigation water in a two mile wide strip of land along the river using information which is generally available...
Reservoir Management for Improved Water Quality
In 1981, the City of Akron, Ohio initiated a multidisciplinary study to develop a reservoir management plan for its 3 reservoirs in the upper Cuyahoga River basin. The City sought possible...
SCS Water Supply Forecasting Opportunities
SCS personnel have been surveying the mountain snowpack, collecting other hydrometeorological data, and providing water supply forecasts to users for nearly 50 years. Recently, the snow...
A Systems Approach to the Assessment of Water Supply, Treatment, Storage and Distribution Systems
To focus on the needs of a system at present and in the future and to foresee potential problem areas prior to their occurrence, it is advisable for the management of a water utility to...
Pipeline Materials and Design
The proper use of pipeline materials and design is obviously paramount in the private and public works sectors. The introduction and proper use of new piping materials and design procedures...
Sedimentation Consolidation Models?Predictions and Validation
In very soft sediments, questions have arisen concerning the capability of standard computational techniques used to implement calculations. The problems mainly lie in the manner in which...
Disinfecting with Ultraviolet Radiation
The benefits of disinfecting treated effluent to meet discharge permits with ultraviolet radiation instead of ozone or chlorine are that it does not produce toxic chemical residuals like...
Financing and Charges for Wastewater Systems
A general overview of the current practices and procedures that should be considered for financing and charges for wastewater collection and treatment systems is presented. The publication...
A Standard for the Measurement of Oxygen Transfer in Clean Water
This standard was developed to measure the rate of oxygen transfer from diffused gas and mechanical oxygenation devices to water. The standard is applicable to laboratory scale oxygenation...
From Wastewater to Drinking Water
The city of Denver, Colorado will experience a population increase of an estimated half million people within the next 20 years. To satisfy the anticipated demand for water in this semi-arid...
The Third Wave in Water Quality Management
In the 1970's there was great pressure to clean up water-polluting discharges no matter what the cost. Now in the tight-budget 1980s, there is a vigorous search for more cost-effective...
Holland's Fight Against the Sea
The Netherlands have always been threatened by the sea, its Delta Region most of all. After the catastrophic floods of 1953, the Delta Plan for the strengthening of coastal defenses and...
Land Treatment of Hazardous Waste
Land treatment is one of several available alternatives to the use of landfills and surface impoundments for the treatment and disposal of hazardous waste. Using this technique, hazardous...
New Wastewater Process Cuts Plant Costs 60%
By combining the aerator and the clarifier into one basin, this new wastewater treatment process can slash capital costs up to 60% and operating and maintenance costs up to 45%. Raw sewage...
Environmental Engineering
The purpose of the 1983 ASCE National Conference on Environmental Engineering was to pursue scientific knowledge and promote sound engineering judgement and practice in the solution of...
Activated Sludge
A Comparison of Oxygen and Air Systems
The use of pure oxygen in biological wastewater treatment is the only major advance which has occurred in the area of activated sludge treatment since the early 1960's. Furthermore,...
The Incidence, Monitoring, and Treatment of Viruses in Water Supply Systems
A State-of-the Art Review
Two areas of growing concern in water treatment and public health are the potential for spread of viruses by water routes and the adequacy of current treatment and disinfection practices...
Return to search