نتایج جستجو برای: waste landfills

تعداد نتایج: 82525  

Journal: :E3S web of conferences 2021

Humanity knows three ways to deal with waste: incineration, burial (landfills) and recycling. All the methods, except reuse recycle, destroy nature are dangerous for ecology human health exactly. Each year Russians produce about 50 million tons solid waste, most part of which goes landfills. National green projects aimed create visible eco-friendly system by awarding greenwashing grants: landfi...

2002
Mala Chandrakanthi Patrick Hettiaratchi Bolívar Prado Janaka Y. Ruwanpura

Growth in construction activities increases the amount of construction waste generated. Recycling of construction waste is an important component of environmentally responsible construction, as it reduces the amount of waste directed to landfills. In addition, it enhances the resource recovery for future construction work. A model is presented in this paper to predict waste generation rates, as...

2001
S. T. S. Yuen

This paper begins by providing an outline of various waste stabilisation techniques on which the concept of bioreactor or process-based landfills is based, followed by an overview of the research and development of this alternative landfill approach. The paper then presents a summary of the Australian experience. It also reports on the current state of bioreactor landfills and discusses the dif...

2010
Mary Warnock Kaaron Davis Duane Wolf Edward Gbur

The cellulosic fabrics cotton, rayon, and Tencel® are commonly used in the textile industry (Kroschwitz, 1990). The chemical composition of the fabrics is similar, but they differ in the arrangement of the cellulose polymers in the fabrics (Collier and Tortora, 2001). The basic polymer for all cellulosic fibers consists of repeating glucose units. For the cotton fabric, the cellulosic polymers ...

Journal: :Bioresource technology 2013
Silvia Salati Barbara Scaglia Alessandra Di Gregorio Alberto Carrera Fabrizio Adani

The aim of this work was to evaluate the effects of short full scale MBT process (28 d) getting a biological stability of DRI < 1000 mg O(2) kg VS(-1) h(-1), on the impact of leachate produced in simulated landfill. As consequence of that, waste was processed by full scale MBT and both untreated and treated waste were successively incubated in simulated landfills for 1 year. Leachates were coll...

Journal: :Environmental science. Processes & impacts 2014
Guo-Hua Zhao Xing-Zhang Luo Gui Chen Yong-Jun Zhao

Printed circuit boards (PCBs) are the main components of electrical and electronic equipment (EEE). Waste PCBs contain several kinds of heavy metals, including Cu, Pb and Zn. We characterize the leaching of heavy metals (Cu, Pb, Zn and Ni) from waste PCBs in a pH range of 3.0 to 5.6 using a novel approach based on batch pH-static leaching experiments in this work. The results indicate that the ...

2009
Belma Muhamedagic Lejla Muhamedagic Izet Masic

CONFLICT OF INTEREST NONE DECLARED Waste management is one of the key ecological challenges of the modern world. As dental practitioners, we must recognize that some of the materials and procedures we use to provide dental health services may present challenges to the environment. Realizing this, we can begin to take measures to minimize the production of these wastes and their potential enviro...

2011
Xavier Font Adriana Artola Antoni Sánchez

Environmental policies at the European and global level support the diversion of wastes from landfills for their treatment in different facilities. Organic waste is mainly treated or valorized through composting, anaerobic digestion or a combination of both treatments. Thus, there are an increasing number of waste treatment plants using this type of biological treatment. During waste handling a...

2010
Joakim Krook Niclas Svensson Mats Eklund Nils Johansson Per Frändegård

Landfills have historically been seen as the ultimate solution for storing waste at minimum cost. It is now a well-established fact however that such deposits have related implications such as long-term methane emissions, local pollution concerns and limitations on urban development. Landfill mining has been suggested as a strategy to address such resource and pollution problems and in principl...

2012
Sanaz Saheri Masoud Aghajani Mir Noor Ezlin Ahmad Basri Noor Zalina Binti Mahmood Rawshan Ara Begum

The largest percentage of MSW in Malaysia is contributed by the state of Selangor, with a 3,923 tons generated daily. Therefore, the aim of this study is to consider the current condition of the open dumps and sanitary landfills in Selangor from an environmental point of view. Moreover, the local authorities of Malaysia prefer to use landfills that have no liners, biogas capture, and many other...

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