06/10/19
06/12/19
Full-Scale Testing of a Water Reclamation System
The Central Contra Costa Sanitary District (CCCSD), located in the north-eastern part of the San Francisco Bay area, is currently designing a 30-mgd (114,000-cu m/day) water reclamation plant that will…
Nutrient Control in North San Francisco Bay
A water quality management plan is being prepared for Contra Costa County. Tidal waters of the San Francisco Bay estuary extending northward from Richmond to Carquinez Straits and eastward to…
Design of Integrated Approach to Nutrient Removal
The Central Contra Costa Sanitary District (CCCSD) new 30,000,000-gal/day (113,500-m3/day) Water Reclamation Plant presently under construction near Concord, Calif., will produce water for industries located along the shores of Suisun…
Planning for Water Reclamation and Industrial Reuse in San Francisco Bay Area
The San Francisco Bay Region, situated in the semi-arid central portion of California (Fig 1), is an area of high potential for wastewater reclamation and reuse–particularly for urban water uses…
Wastewater Solids Storage Basins-A Useful Buffer Between Solids Stabilization and Final Disposal
One of the major problems involved in the final disposal of wastewater solids is the need to match disposal operations to solids production. Wastewater solids are produced on a continuous…
Reclaimed Water Distribution–San Diego’s Market, Facilities and Financing
The City of San Diego (City) embarked on an expansive plan for water reclamation and reuse with formation of the Clean Water Program (CWP) in 1987. On January 1, 1994,…
A Regional Groundwater Resource Management Model
This paper demonstrates the application of a groundwater quantity and quality model to large-scale groundwater basin management. The model employs a finite difference formulation of groundwater flow to compute the…
Development and Application of a Water Resource Allocation Model
A water resource optimization model is described for use in long-range infrastructure planning for water supply and waste water management. The model includes a network analyzer to determine least-cost allocation…
Sludge Lagoon Design
Sludge lagoons have been part of the treatment and disposal of wastewater solids since the first introduction of wastewater treatment. They have provided treatment including concentration, stabilization, dewatering (drying), and…
Effect of Water Conservation on Water Demands
A study of water supply, water conservation, and wastewater reclamation and reuse in the San Francisco Bay Area was performed by the J. B. Gilbert & Associates division of Brown…
Fugitive Emissions of Volatile Organic Compounds From Fixed Film Wastewater Treatment Process
The transfer of volatile organic compounds (VOCs) from wastewater to the atmosphere during wastewater treatment has become an issue of concern in recent years. The chemicals which have been identified…