A Survey on Current Situation of Rural Household Waste Treatment and Disposal in Guangdong Province

A brief historical review of Japanese human wastewater treatment and disposal since 1945 is presented. The present situation regarding night soil treatment is described. The public sewerage works have been inactive due to financial reasons since 1981, and thus small to medium sized biofilm type facilities are receiving various kinds of grey water and composite household waste. This type of compact, biofilm treatment became popular because of its inexpensive construction and energy-saving characteristics. The numbers and types of biological processes currently in use in Japan are detailed, and an overview is given of industrial waste treatment and its relationship with public sewage treatment. The overall COD flow is indicated, with the amount of waste per capita, estimated from the actual water consumption. The unit load values of BOD, COD etc. are shown, and are used for the calculation of COD load.

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A hydrochemical and isotopic case study around a near surface radioactive waste disposal

Radiochimica Acta ◽

10.1524/ract.2007.95.1.55 ◽

2007 ◽

Vol 95 (1) ◽

Author(s):

Zs. Szántó ◽

É. Svingor ◽

I. Futó ◽

L. Palcsu ◽

M. Molnár ◽

...

Keyword(s):

Radioactive Waste ◽

Waste Treatment ◽

Radioactive Waste Disposal ◽

Ion Chemistry ◽

Continuous Transition ◽

Near Surface ◽

Disposal Facility ◽

Treatment And Disposal ◽

Site Characterisation

As part of the site characterisation program for the near surface radioactive waste treatment and disposal facility (RWTDF) at Püspökszilágy, Hungary, water quality and environmental isotope investigations have been carried out. Water samples for major ion chemistry, tritium,The chemical composition of groundwaters presented a continuous transition from waters situated on one side to waters on the top and on the other slope of the disposal suggesting the mixing of the three hydrochemical “endmembers”.Most of δ

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Waste disposal site selection techniques in Quaternary terraine Ontario, Canada

Geological Society London Engineering Geology Special Publications ◽

10.1144/gsl.eng.1991.007.01.19 ◽

1991 ◽

Vol 7 (1) ◽

pp. 211-217

Author(s):

A. J. Cooper

Keyword(s):

Site Selection ◽

Waste Treatment ◽

Careful Analysis ◽

Quaternary Geology ◽

Disposal Site ◽

Geological Investigation ◽

Fine Grained ◽

Clayey Silt ◽

Treatment And Disposal ◽

A Site

AbstractThick and predictable deposits of fine grained Quaternary materials have been used for the siting of waste management facilities in Ontario. The search for such sites is founded on the application of techniques in Quaternary geology and hydrogeology. Two examples are presented. Oxford County is located southwest of Toronto in an area of parallel morainic ridges separated by flat till plains. Conventional wisdom would focus on the till plains for thick, consistent fine grained Quaternary Sediments. However, the careful analysis of the Quaternary stratigraphy and glacial history revealed that better sites are located along the moraines. A site on the Ingersoll Moraine was studied in detail and defended at a public hearing. Concerns about the geology of the materials were allayed by the confirmation of homogeneous clayey silt materials exposed when the site opened in late 1986. A much wider ranging search was undertaken for a major hazardous and liquid industrial waste treatment and disposal facility for the Province of Ontario. Progressively more detailed investigations of the Quaternary geology were used to assist a multi-disciplinary site selection team. Initial interpretations covered an area of 75 000 km2 at a scale of 1:250 000. Eight candidate sites were then selected for further investigation with five continuously sampled stratigraphic boreholes. The chosen site is located in a depression in the bedrock filled with 40 m of glaciolacustrine clayey silt. Site specific hydrogeological and geotechnical studies were integrated with a detailed geological investigation.

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