IRON AND MANGANESE SURVEY IN AQUIFERS SURROUNDING LANDFILLS IN WALLONIA (BELGIUM)
© IWWG International Waste Working Group (10/2007)
The groundwater biogeochemistry around waste disposal facilities has been widely studied since twenty years (Christensen & al, 2001). It is well known that leachates produced by water percolation through waste solid often contain high concentrations of dissolved Fe and Mn (Christensen & al, 1997). Fe(III) and Mn(IV) also enter in the composition of aquifers matrix (silts, sand, rocks). It constitutes a second reserve of electrons acceptors for further anaerobic biodegradation in aquifer environment.

ANALYSIS OF THE WASTE MASS DEGRADATION DEGREE IN THE CONTEXT OF FUNCTIONAL STABILITY OF CLOSED LANDFILLS
© IWWG International Waste Working Group (10/2007)
The monitoring of a closed landfill concerns in general four aspects: leachate, biogas, settlement and groundwater quality. This monitoring is required to evaluate and minimize the landfills potential environmental impact during at least 30 years after site closure. During this period, the question is how to detect the landfill “end-of-life”. During the SWANA (Solid Waste Association of North America) bioreactor committee (2004), a definition of the “functional stability” was given: “a landfill is functionally stable (in a stable situation) when it no longer presents an unacceptable threat to human health and the environment…”

A STUDY ON HIERARCHICAL FRAMING AND STANDARDIZATION OF LEACHINGTESTS FOR WASTE UTILIZATION IN JAPAN
© IWWG International Waste Working Group (10/2007)
Setup of environmental safety levels for a variety of recycled products is not a simple problem.For a contribution of establishing sustainable waste management, most prefectural governments in Japan have been introducing accreditation systems for recycled products. However, in most cases, environmental criteria for soils by a batch leaching test “JLT-46” (Japanese Environmental Agency, 1995) is substituted, despite the wide-ranging types and lifecycles of recycled products involved. Such inappropriate testing system may lead to both sides of environmental problems: a certain recycled product containing toxic substances may causes environmental pollution (Miyawaki K., Osako M. & al, 2007), or, overestimated requests for the environmental safety may inhibit rational waste utilization. An appropriate evaluation guideline for environmental safety levels of different recycled products is awaited urgently for those prefectural accreditation systems.

CLOSED-LOOP LEACHATE MANAGEMENT USING ENGINEERED WETLANDS AND A PHYTO-CAP
© IWWG International Waste Working Group (10/2007)
The project site is a closed, 11-ha. municipal solid waste (MSW) landfill unit comprising two conjoined cells at an active facility. The site is located in Delaware on the mid-Atlantic coastal region of the United States and receives approximately 1,000 mm of rain annually with high summer temperatures typically around 30°C and winter lows generally below freezing. The cell, which accepted waste from 1980 to 1988 and contains approximately 740,000 Mg, has a geomembrane liner and leachate collection system. The cell was closure capped with a 60 cm thick sandy soil cover in accordance with the regulations applicable at that time, and currently generates approximately 30,000 L/day of leachate.

A model of sustainable development in areas with limited resources
© IWWG International Waste Working Group (11/2006)
The purpose of the research has been a cognitive investigation developed in the archipelago of Eolie Islands, localized in the limits of the territory north-east of the Sicily, with the aim of know te present state of health of residential water and Municipal Solid Waste management systems, to make feasible a model of sustainable development advanced.

The Perspective of Solid Waste Management and Landfill Technology in Indonesia
© LGA Bautechnik GmbH (4/2004)
The urban areas in western Java alone generate 55 000 tons of solid waste per day. Waste disposal is among the worst in the Asia region. Only 50 – 60 % is collected, and most landfill sites are open dumps. Service is worse in poor areas, where most waste is dumped in canals or vacant lots, or burned. Poor solid waste management degrades local water ways and is the largest source of particulate air pollution in urban areas. It is a major contributor to respiratory ailments, diseases such as Dengue Fever, and localized flooding.

Long-term oberservation of the performance of a mineral landfill cover
© LGA Bautechnik GmbH (2/2004)
The water balance of a landfill cover consisting of compacted sandy loam was monitored in a test-field on the municipal landfill at Aurach (Bavaria/Germany). Results of the 4-years monitoring period are presented. During summer months almost no liner leakage occurrs. Precipitation is stored temporarily in the soil cover and subsequently leaves the system via evapotranspiration.

Reform of the Common Agricultural Policy and Groundwater Protectioná
© DIV Deutscher Industrieverlag GmbH (12/2003)
The reform of the common agricultural policy (CAP) contents the opportunity to secure income in agriculture as will as implementing necessary improvements for sustainable environmental protection i. e. protection of drinking water sources.á

Summary of the uranium mining and milling activity of the Mecsekerc Environment
© ICP Ingenieurgesellschaft Prof. Czurda und Partner mbH (6/2001)
Uranium ore mining activity started in southern part of Hungary in 1958, while milling in 1962. During operation period almost 47 million tonnes of rock has been removed, out of which 1.4 million tons were exported to the former Sovietunion, the remaining was processed on the sites of the Mecsek Ore Mining Co. (MEC).

Remediation of Contaminated Sites in Japan State of the Art and Future Perspectives
© ICP Ingenieurgesellschaft Prof. Czurda und Partner mbH (7/2000)
In Japan, following the first findings of groundwater contamination in Tokyo Metropolitan in 1974 and the serious state of groundwater pollution in many developed nations, great deals of concern on groundwater contamination have been raised in the past two decades.

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