Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
The Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management publishes articles relating to the allied engineering and scientific disciplines involved in the environmental aspects of the...

Shear Dispersion in the Benthic Boundary Layer

The Role of Circulation Patterns on the Simulation of Constituent Transport in San Juan Bay, Puerto Rico

An Iterative, Probabilistic Environmental Decision Analysis Approach

Comparison of Commonly Used Odor Control Technologies

Critical Issues in the Monitoring and Control of Toxic Air Contaminants at POTWs
Todays challenge at Publicly Owned Treatment Works (POTWs) is to assess and reduce the environmental risk posed by toxic air contaminants (TACs). This paper attempts to identify the critical...

A Simplified Process Audit to Design an Affordable Pollution Prevention and Waste Management Plan - Part 1
This paper presents a simplified approach to the general audit procedure that is applicable to the Small and Medium Enterprise (SME). The process leads to the identification of major sources...

Pilot Testing of a Zero-Discharge Treatment Process
As environmental regulations become more stringent, pulp and paper mills are investigating alternatives to conventional biological treatment and discharge of effluents into receiving waters....

Permeability of Clay Liners with Contaminants
Clays are increasingly used as liners for waste disposal facilities. Chemical compatibility studies with hydraulic conductivity tests must be performed to determine the effect of the waste...

Design and Implementation of a Multi-Faceted Site Remediation
This technical paper presents a case history of the design, construction, and start-up of a multi-faceted site remediation system. The case history includes a description of the site background,...

Secondary Containment Design Practices
Over the past several decades the design approach to containment of spills has not been consistent resulting in release of hazardous substances into the environment. The increased discovery...

Comparison of Methods for Sizing Secondary Treatment Filters for Wastewater
The trickling filter process in which a bacterial biomass is allowed to grow attached to a filter medium of rock or plastic is effectively used for removal of organic materials in domestic...

Study of Biological Reactors for Control of Odor, VOC and Toxic Emissions from Wastewater Treatment Plants
An experiment was performed to assess the use of biological reactors to treat off-gases from publicly owned treatment works (POTWs) containing low concentrations of hydrogen sulfide (H2S)...

Risk Analysis of Drinking Water Treatment and Supply Facilities Handling Highly Hazardous Chemicals
Due to increasing public concern of risks from handling highly hazardous chemicals at various facilities, a number of state regulatory agencies, including the State of California, have...

Anaerobic Biodegradation of High Energetics in Digestion Sewage Sludge
The digested sewage sludge culture is highly effective for denitrification and the subsequent degradation of energetics contained nitrites. Two energetics, ADN (ammonium dinitramide) and...

Annual Delivery Decisions in the Simulation of the California State Water Project and Federal Central Valley Project using DWRSIM
This paper presents a new annual contractor delivery determination procedure for the California Department of Water Resources' State Water Project (SWP) and Central Valley...

Non-point Source Policies for Agricultural Drainage
There is limited experience in regulating the water quality impacts of nonpoint source subsurface agricultural drainage discharges. Recent efforts in California to regulate selenium discharges...

Significance of Geologic Features on the Contaminant Migration from Landfill Sites
Contaminants (leachate) migration pathways in various media at hazardous waste and landfill sites are primarily defined by the local geologic features at such sites, namely:stratigraphy,...

Conveyance of Water and Wastewater Residuals
The treatment of water and wastewater results in the production of significant quantities of residual suspended solids which must be further processed prior to discharge/disposal. Invariable,...

Automatic Control of Flocculation Processes
A control system for flocculation, used in water and wastewater treatment operations is being developed. The approach is based on detailed particle size distribution measurements of influent...

 

 

 

 

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