Water quality waste sites

Wastewater Treatment Engineering Bureau of Land Water Quality Last update 03/12/01. Wastewater Treatment Engineering, Technieal Assistance and Pollution Prevention. Waste Treatment Go to the following web site http //janus.state.me.us/dep/blwq/engin.htm. 

Geochemical simulations (not shown) of water quality suggest that Ni is soluble in the test conditions, eliminating secondary mineral precipitation as an explanation for the absence of Ni in leachates. These observations could be explained by the metal retention potential of the Lac Tio waste rock being still active in the humidity cell tests. Consequently, the Ni produced in the humidity cell tests will continue to be retained by the fresh waste rock until saturation of the retention sites. 

Van Duijvenbooden, W. and Kooper, W. F., 1981, Effects on Groundwater Flow and Ground-water Quality of a Waste Disposal Site in Noordwijk, the Netherlands Science Total Environment, No. 21, pp. 85-92. 

WHO also summarized water quality data from various sources and reported that data on nitrobenzene levels in surface water appear to be more extensive than data on levels in air. While levels are variable depending on location and season, generally low levels ( 0.1-1 pgl ) have been measured. One of the highest levels reported was 67 rgl, in the river Danube, Yugoslavia, in 1990. However, nitrobenzene was not detected in any surface water samples collected near a large number of hazardous waste sites in the United States (reported in 1988). Based on limited data, it appears that there may be greater potential for contamination of groundwater than of surface water several sites measured in the United States in the... 

Within the last 20 years the need to expand these systems or to create a new system to address ground-water quality has become evident. Many different systems have been developed to address site selection for waste disposal facilities such as sanitary... 

This book focuses on the development and application of new. more cost-effective technologies for hazardous waste site characterization and remediation. Topics indude quality assurance new technologies for field instrumentation, biomarker-based biomonitoring, surface water and ground water monitoring, chemical sensing, radiochemical measurements and sensing and case studies. 

Hazardous Waste Site Management Water Quality Issues... 

Samples of waters and soils from hazardous waste sites can be quite variable in chemical composition. However, due to the sample load handled by the CLP and the need to use standardized, legally defensible analytical techniques, the chosen methods are most applicable to typical analytes and matrices. Little flexibility in achieving optimum conditions is allowed when analyzing individual parameters in unusui samples (3). As an independent check on laboratory quality, several calculations were performed and compared to the criteria given in Table II. Results of the evaluation are provided in Table III. 

Aeneth JD, Milde G, Keendoeee H and ScHLEYER R (1989) Waste deposits influences on ground water quality as a tool for waste type and site selection for final storage quality. In Bacdni P, ed. The Landfill - Reactor and Einal Storage. Lecture Notes in Earth Sciences 20 399-416. Springer, Berlin-Heidelberg-New York. 

Results from the evaluation of ground water quality characteristics near two waste sites in Ibadan and Lagos revealed that some of the ground-water quality constituents determined exceeded the World Health Organization (WHO) standards for drinking water irrespective of source of pollution. Some of the ground-water samples were poor in quality in terms of cadmium, chromium, lead and nickel recorded (Deem et al., 2002). The levels of heavy metals (cadmium, chromium, nickel, and lead) were analysed in the River Ijana (Ekpa-... 

Ikem, A., Osibanjo, O., Sridhar, M. K. C. Sobande, A. (2002). Evaluation of groundwater quality characteristics near two waste sites in Ibadan and Lagos, Nigeria. Water, air and soil pollution. Vol 140, Nos 1-4. pp 307-333. 

Criteria for selecting the most appropriate containment strategy for mine waste can be defined in terms of the contaminant load mobilized from the waste that can be acceptably accommodated by the receiving water body. In order to define this load a Water Quality Objective (WQO) should be set for the receiving course downstream of the discharge. At present in the UK, Statutory Quality Objectives have not been set for surface water courses, but some pilot studies are currently ongoing. The WQO should therefore be set specifically for the site in question and should take account of local factors such as downstream effluent discharges. 

The general purpose of ultimate disposal of hazardous wastes is to prevent the contamination of susceptible environments. Surface water runoff, ground water leaching, atmospheric volatilization, and biological accumulation are processes that should be avoided during the active life of the hazardous waste. As a rule, the more persistent a hazardous waste is (i.e., the greater its resistance to breakdown), the greater the need to isolate it from the environment. If the substance cannot be neutralized by chemical treatment or incineration and still maintains its hazardous qualities, the only alternative is usually to immobilize and bury it in a secure chemical burial site. 

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