On-line liquid-effluent monitoring of sewage at Lawrence Livermore National Laboratory

Conference · Wed Aug 31 04:00:00 EDT 1983

OSTI ID:5177601

Dreicer, M; Cate, J L; Rueppel, D W; Huntzinger, C J; Gonzalez, M A

LLNL's sanitary sewer system is a possible route for the escape of toxic materials. Liquid effluents are released to Livermore's sanitary sewer system and the effluent is treated at the Livermore Water Reclamation Plant (LWRP). The plant is a secondary-treatment operation that returns most of the water to the San Francisco Bay via a transport pipeline. The remaining portion is used for irrigating vegetation along the roadways and a local golf course. An automatic on-line, sewage-effluent-monitoring system has been developed that diverts a representative fraction of the total waste stream leaving the site. This portion is monitored for pH, radiation, and heavy metals as it passes through a detection assembly. The assembly consists of an industrial pH probe, two NaI radiation detectors, and an x-ray fluorescence metal detector. A microprocessor collects, reduces, and analyzes the data to determine if the levels are acceptable by established environmental limits.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5177601
• Report Number(s): UCRL-89778; CONF-840512-2; ON: DE83017837
• Country of Publication: United States
• Language: English

Related Subjects

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54 ENVIRONMENTAL SCIENCES
AUTOMATION
CHEMICAL EFFLUENTS
ELEMENTS
LAWRENCE LIVERMORE LABORATORY
MEASURING INSTRUMENTS
METALS
MONITORING
NAI DETECTORS
NATIONAL ORGANIZATIONS
ON-LINE MEASUREMENT SYSTEMS
ON-LINE SYSTEMS
PH VALUE
RADIATION DETECTORS
RADIOACTIVITY
SCINTILLATION COUNTERS
SEWAGE
SOLID SCINTILLATION DETECTORS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WASTES
X-RAY FLUORESCENCE ANALYZERS