Material Recovery Stations in City of Tehran: A Case Study
© Wasteconsult international (6/2009)
This paper presents practical experiences in design, manufacturing and management of the Material Recovery Station (MRS). In addition this paper uses some related information to report the current state of MRS in Tehran. Here, Tehran's MRS systems will be analyzed with respect to their performances. Considering the local needs, a tailor made cost-effective waste recovery system is proposed to optimize the current MRS. It is estimated that once the proposed MRS plant is implemented, it will increase the recovery rate by 5 to 10 percent. In other words, considering all the 22 stations in Tehran municipality equipped with the proposed system, at least 140,000 tons of waste per day can be recovered and hence diverted from the landfill. Keywords: Material Recovery Station, Municipal waste, Source Separation, Recovery Line, Recovery System

Municipal Solid Waste Treatment - Experiences getting from practice
© Wasteconsult international (6/2009)
Looking for a suitable municipal waste management’s method for town and district is an important task for Vietnam. In such areas the generated waste amount is not big and waste service hardly joins to the public Urban Environment Company’s system, due to a high cost of transportation. In this case, therefore a private company, the Hydraulic- Machine Co., LTD has developed an appropriate technology made in Vietnam. This technology uses for “Treatment of Solid Waste into Fuels” (MBT-CD.08), which has got the Certification of Vietnam Technology Ownership and it is being on the way of extend its application throughout the country. Schematic diagram of the MBT-CD.08, material flow, heat value of the RDF product and the emission as well as scientific comments were reported. Key words: Technology, treatment, solid waste, fuel, material flow, heat value, emission, hazardous substance, mechanical sorting.

The Importance of Flexibility in EU Strategies for Organic Waste Management and the Role of MBT
© Arbeitsgemeinschaft Stoffspezifische Abfallbehandlung ASA e.V. (2/2008)
Since the mid eighties, composting of separately collected biowaste has undergone an impressive growth across Europe. First separate collection schemes in Germany were established in 1983, but even before then, composting had been adopted as a disposal route for municipal solid waste, through the attempt to sort the putrescible fraction mechanically.

TECHNICAL ASSISTANCE TO THE MEXICAN GOVERNMENT IN ENVIRONMENTAL DATA PROCESSING
© IWWG International Waste Working Group (10/2007)
Technical Cooperation in environmental engineering between the Federal Government of Mexico and the Federal Government of Germany has been going on for more than fifteen years. One of the current assistance projects is a four year program, called “Environmental protection and sustainable use of natural resources”. This program contains a component, called “Environmental information system and monitoring”. It is managed by a working group that consists of members of the Mexican Ministry for the Environment (SEMARNAT, see abbreviations) and of local and international experts.

A CASE STUDY OF DECENTRALIZED HOUSEHOLD WASTE MANAGEMENT WITH COMPLETE MATERIAL BALANCE TYPICAL OF EMERGING ECONOMY CONTEXTS
© IWWG International Waste Working Group (10/2007)
Material Flow Analysis (MFA) is a powerful tool for understanding and improving industrial, agricultural, national, regional, municipal and even domestic resources movements. It has its roots in simple mass balancing and pursues strategic targets such as to determine what happens to all the raw materials entering a process, a facility or a geographic area, to calculate yields and losses, to provide information on the destinations of products and byproducts and to close life cycles.

SOLID WASTE MANAGEMENT PLANNING IN THE CITY OF SMEDEREVSKA PALANKA
© IWWG International Waste Working Group (10/2007)
An integrated approach to planning the use and management of land resources entails the involvement of all interested parts in the process of decision making on the future of the land, and the identification and evaluation of all waste management attributes of land units. This requires the identification and establishment of a use or non-use of each land unit that is technically appropriate, economically viable, socially acceptable and environmentally nondegrading. A purely sectored approach to the planning of land resources and waste management should be avoided, as this may lead to their irreversible degradation.

SOLID WASTE MANAGEMENT ON BRAZILIAN CONSTRUCTION SITES
© IWWG International Waste Working Group (10/2007)
In recent years, Brazilian civil construction and the real estate construction sub-sector, particularly, have faced challenges to find top-level quality and productivity within a process of upgrade and change in traditional practices. However, numerous shortages can be found at every stage of the building production process. Included in these shortages is the management of a large quantity of waste products, causing serious urban problems arising from the scarcity of disposal areas, from public sanitation problems and environmental contamination.

MATERIAL FLOW ANALYSIS AS A DECISION SUPPORT TOOL FOR WASTE MANAGEMENT IN GROWING ECONOMIES
© IWWG International Waste Working Group (10/2007)
The assessment and selection of waste management strategies is one of the most fundamental tasks in waste management. The complexity of waste management systems has been increasing worldwide, since material and resource aspects as well as closed loop material flows are becoming more and more important. Growing interrelationships between disposal, recycling and production processes result in complex networks of waste treatment. Material Flow Analysis (MFA) is a systematic assessment of the flows of materials within a system defined in space and time. Brunner P. and Rechberger H. (2004) published a methodology for the assessment of waste treatment processes based on the analysis of material flows. Only an exact accounting of all substance flows allows one to determine the final sinks (or the whereabouts) of the “goods” in these processes.

ZERO WASTE STRATEGIES FOR URBAN AREAS IN SOUTH AFRICA
© IWWG International Waste Working Group (10/2007)
Solid waste management in developing countries is characterised by highly inefficient waste collection practices, inadequate levels of service, limited resources, lack of environmental control systems, indiscriminate dumping, littering and scavenging and a poor environmental and waste awareness of the general public (Onu, 2000). South Africa, as other emerging countries, is striving towards meeting international standards by applying advanced concepts such as the waste hierarchy and zero waste to their environmental policies.

MATERIAL FLOW ANALYSIS AND COMPARION OF LONG-TERM NITROGEN FLOW CHANGE IN HOUSEHOLDS SECTOR OF ASIAN MEGA-CITIES
© IWWG International Waste Working Group (10/2007)
As a part of a project which aimed to evaluate the relationships between the development stage of cities and various environment problems, the objective of this research is to analyze the influence of long-term changes by life style and waste (solid waste and waste water) management to the nitrogen flow in mega-cities.. Mass production- mass consumption pattern of development was formed by the development of industrilization. During these developments, more and more people immigrate into cities, industrilialization accompanied by urbanization, the cities enlarged themself and people concentrated into cities.

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