The Waste Disposal Regulation which became effective March 1, 2001 stipulates that from June 1, 2005 biodegradable residential household and commercial waste may only be deposited on landfills after thermal or mechanical-biological pre-treatment. The Regulation aims at preventing generation of landfill gases that are detrimental to health and climate, and discharge of pollutants from landfills into the groundwater. Waste calculations for the year 2005 predict a volume of 28 million tons. Existing incineration and mechanical-biological treatment plants cover volumes of 14 and 2.5 million tons, respectively. Consequently, their capacity does not meet the demand in Germany. Waste disposal plans have been prepared in the German Federal State of Saxony-Anhalt since 1996 and potential sites for garbage incineration plants have been identified. Energy and waste management companies have initiated application procedures for thermal waste treatment plants and utilization of energy. Health Departments and the Hygiene Institute contributed to the approval procedure by providing the required Health Impact Assessment. We recommended selecting sites in the vicinity of large cities and conurbations and - taking into account the main wind direction - preferably in the northeast. Long-distance transport should be avoided. Based on immission forecasts for territorial background pollution, additional noise and air pollution were examined for reasonableness. In addition, providing structural safety of plants and guaranteeing continuous monitoring of emission limit values of air pollutants, was a prerequisite for strict observance of the 17 (th) BImSchV (Federal Decree on the Prevention of Immissions). The paper informs about planning, construction and conditions for operating the combined garbage heating and power station in Magdeburg-Rothensee (600,000 t/a). Saxony-Anhalt's waste legislation requires non-recyclable waste to be disposed of at the place of its generation, if possible, and utilized as a renewable energy source. This requirement is satisfied in this location. The potential health hazard for residents living in the impact radius is rated low.
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http://dx.doi.org/10.1055/s-2004-813840 | DOI Listing |
Chemosphere
January 2025
DICAR University of Pavia, 27100 Pavia, Italy. Electronic address:
Excess biological sludge processing and disposal have a significant impact on the energy balance and economics of wastewater treatment operations, and on receiving environments. Anaerobic digestion is probably the most widespread in-plant sludge processing method globally, since it stabilizes and converts biosolids organic matter into biogas, allowing partial recovery of their embedded chemical energy. A considerable number of studies concerning applicable techniques to improve biogas production, both in quantity and quality, include pre-treatment strategies to promote biosolids disintegration aimed at the release and solubilisation of intracellular energy compounds, inorganic/biological amendments aimed at improving process performance, and sludge thermal pre-treatment.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Department of Resources Engineering, National Cheng Kung University, Tainan 701, Taiwan.
In the waste oil recycling industry, large amounts of oil-containing sludge are still generated, thus posing a resource depletion issue when disposed of or incinerated without energy recovery or residual oil utilization. In this work, chemical activation experiments using phosphoric acid (HPO) were performed at a low temperature (600 °C) for 30 min to produce porous carbon products. From the results of the pore property analysis, an increasing trend with an increasing impregnation ratio from 0.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Faculty of Materials Engineering and Physics, Cracow University of Technology, Jana Pawła II 37, 31-864 Cracow, Poland.
Geopolymer materials are increasingly being considered as an alternative to environmentally damaging concrete based on Portland cement. The presented work analyzed waste from mines and waste incineration plants as potential precursors for producing geopolymer materials that could be used to make lightweight foamed geopolymers for insulation applications. The chemical and phase composition, radioactivity properties, and leachability of selected precursors were analyzed.
View Article and Find Full Text PDFSci Rep
January 2025
Laboratorio de Microbiología Ambiental y Suelos, Unidad de Investigaciones Agropecuarias (UNIDIA), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, P.O. Box 110‑23, Bogotá, DC, Colombia.
Globally, the companies that make commercial use of bamboo culms produce different kinds of solid waste rich in lignocellulosic biomass, which in some cases is not used and is discarded in landfills or incinerated in the open air; losing the possibility of recovering them and using them in other productive sectors. The research objective were to produce a biochar from Guadua agustifolia Kunth sawdust, evaluate its potential environmental and agricultural use, obtain a biochar/TiO composite to inactivate Escherichia coli and use the biochar as a soil conditioner in medicinal plants producing phenolic compounds and flavonoids. Biochar composite (produced at 300 °C for 1 h) involved TiO at 450 °C for 1 h for inactivation of E.
View Article and Find Full Text PDFPLoS One
December 2024
Department of Chemistry, American University of Beirut, Beirut, Lebanon.
Lebanon, plagued by political and economic crises, experienced a government collapse in early 2020, leading to an electrical nationwide blackout by 2023. Diesel generators were used to compensate for the absence of power production from the national provider, Electricité du Liban (EDL). To investigate the effect of the crisis on the levels of 16 EPA particle bound polycyclic aromatic hydrocarbons (PPAHs), an annual comparative analysis of three locations within Beirut started in 2022 and ended in 2023.
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