نتایج جستجو برای: urban wastes

تعداد نتایج: 183666  

2015
Min Zhou Shukui Tan Mingjing Guo Lu Zhang

Industrial pollution has remained as one of the most daunting challenges for many regions around the world. Characterizing the determinants of industrial pollution should provide important management implications. Unfortunately, due to the absence of high-quality data, rather few studies have systematically examined the locational determinants using a geographical approach. This paper aimed to ...

Journal: :Journal of hazardous materials 2015
Sara Castiglioni Sara Valsecchi Stefano Polesello Marianna Rusconi Manuela Melis Marinella Palmiotto Angela Manenti Enrico Davoli Ettore Zuccato

Perfluorinated substances are listed among emerging contaminants because they are globally distributed, environmentally persistent, bioaccumulative and potentially harmful. In a three-year monitoring campaign (2010-2013) we investigated the occurrence, sources and fate of nine perfluoroalkylcarboxylic acids and three perfluoroalkylsulfonic acids, in the most industrialized region of Italy. Comp...

کلباسی, محمود , گندمکار, اکبر ,

The moisture content of urban solid wastes in Iran is very high. A large volume of leachate is, therefore, produced in the process of converting these wastes into compost. The leachate contains relatively large amounts of organic matter, plant nutrients, soluble salts as well as small amounts of some heavy metals. The effects of urban solid waste leachate on growth and yield of corn and heavy m...

ژورنال: علوم آب و خاک 1997
کلباسی, محمود , گندمکار, اکبر ,

The moisture content of urban solid wastes in Iran is very high. A large volume of leachate is, therefore, produced in the process of converting these wastes into compost. The leachate contains relatively large amounts of organic matter, plant nutrients, soluble salts as well as small amounts of some heavy metals. The effects of urban solid waste leachate on growth and yield of corn and heavy m...

Journal: :international journal of environmental research 2011
r. oyoo r. leemans a.p.j. mol

this paper presents future trends of urban wastes and their impacts on the environment of african cities using plausible mitigation scenarios. to accomplish this, an integrated dynamic model for urban waste flows was developed, tested, calibrated and validated. its parameter sensitivity was analyzed. using population projection up to 2052 with different levels of technological implementation, p...

2013
Cácio Luiz Boechat Jorge Antonio Gonzaga Santos Adriana Maria de Aguiar Accioly

The use of organic wastes in agricultural soils is one of the possible ways to employ these materials. The aims of this study were to evaluate the effectiveness of organic wastes and Fermented Bokashi Compost (FBC), to establish the most efficient use of organic wastes for a soil, changing the net nitrogen mineralization and soil chemical properties. The experimental design was completely rando...

Journal: :Waste management 2010
R Modolo A Benta V M Ferreira L M Machado

Nowadays, the increasing amount of wastes is a concerning reality and the environmental aspects has become a major priority. Following this worry, the purpose of this experimental study was to investigate the possibility of using pulp and paper inorganic wastes, named dregs and grits, in bituminous mixtures as aggregate replacement to reduce environmental effects of these wastes disposal. First...

2012
Solange I. Mussatto Lina F. Ballesteros Silvia Martins José A. Teixeira

Large amount of wastes is generated every year from the industrial processing of agricultural raw materials. Most of these wastes are used as animal feed or burned as alternative for elimination. However, such wastes usually have a composition rich in sugars, minerals and proteins, and therefore, they should not be considered “wastes” but raw materials for other industrial processes. The presen...

2010
Thomas B. Nolan

Introduction ______________________________ Disposal of radioactive wastes in streams. Radioactivity budget in streams. ________ Characteristics of radioactive wastes which are discharged into streams______________________________ Sources of wastes.__--__--_--_-_-_______________ Nature of wastes.--__-------___-_______________ Properties and types of radionuclides________ Chemical and physical c...

Journal: :Environmental science. Processes & impacts 2013
Iryna Labunska Stuart Harrad David Santillo Paul Johnston Kevin Brigden

Electronic waste recycling operations in some parts of Asia are conducted using rudimentary techniques which result in workplace and environmental contamination with toxic metals and persistent organic pollutants. This study reports concentrations of 14 polybrominated diphenyl ethers (PBDEs), from tri- to deca-brominated, in 31 samples of soil, sediment, dust or ash collected in the vicinity of...

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