Districts minimize energy costs with digester gas

Conference · Sun Jan 01 04:00:00 EST 1978 · J. - Water Pollut. Control Fed.; (United States)

OSTI ID:6581669

Knopf, G W ^[1]; Clarke, W N

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1. John Carollo Eng.

Through the efficient use of digester gas to power major equipment, as well as the recovery of other onsite energy (e.g., waste heat generated by the plants' digester-gas-powered engines), the County Sanitation Districts of Orange County, Calif., currently realizes a savings in energy costs of nearly $1 million/yr at its 8.06 cu m/sec joint works wastewater treatment facilities. Industrial waste makes up about 25% of the total waste load. As the result of more than 20 yr of developing its gas recovery and utilization system, over 60% of the districts' current energy consumption is satisfied by digester gas. Approximately 71,000 cu m/day of gas are used directly to fuel engines, incinerators, and boilers. Gas production, storage, and use; energy consumption; optimizing energy use and reliability; and operating experience are described in detail.

• OSTI ID: 6581669
• Report Number(s): CONF-7710254-
• Conference Information: Journal Name: J. - Water Pollut. Control Fed.; (United States) Journal Volume: 51:3 Part 1
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090122 -- Hydrocarbon Fuels-- Preparation from Wastes or Biomass-- (1976-1989)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320604* -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
ALKANES
ENERGY CONSERVATION
ENERGY EXPENSES
HYDROCARBONS
HYDROGEN COMPOUNDS
INDUSTRIAL WASTES
LIQUID WASTES
MANAGEMENT
METHANE
MUNICIPAL WASTES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
PRODUCTION
RECOVERY
STORAGE
USES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE WATER
WASTES
WATER