You are not logged in...  [Login]          

• Network
  Cleantech Experts
• Knowledge
  Library Events Topics
• About ASK
  Objectives Advantages for Partners Content and Experts Advertising in ASK
• My ASK
  Communication Library My information Messages Contacts My articles

Search: 

THE CHARACTERISTIC OF LEACHATE AND CURRENT STATUS OF LEACHATE TREATMENT TECHNOLOGY IN VIETNAM

Leachate can be defined as a substance that permeates through solid waste layers in landfill which bring some soluble substances or suspended substances (Tchobanoglous etal., 1993). In most of landfill, leachate includes liquid going into landfill from out sources, such as surface water, rain fall, underground water and liquid generated from decomposition process of wastes.

The rapid urbanization makes typical characteristics of municipal solid waste in Vietnamese landfill, among them, leachate is the most important. In addition to these specific properties, strict standards for wastewater output have affected leach ate treatment technologies and the qualities of treated leach ate in Vietnam. Survey data of leachate quality and quantity shows that it is necessary to modify from step of landfill design and operation in order to minimize difficulties in leachate treatment to achieve Vietnamese and international environmental standards.

Copyright:	© IWWG International Waste Working Group
Source:	Specialized Session C (Oktober 2007)
Pages:	6
Price inc. VAT:	€ 0,00
Autor:	N.H. Khanh P.T. Linh L.V. Cat
Send Article	Display article for free	Comment article

These articles might be interesting:

WASTE RECYCLING IN DEVELOPING COUNTRIES IN AFRICA: BARRIERS TO IMPROVING RECLAMATION RATES
© IWWG International Waste Working Group (10/2007)
The volumes of waste being generated and which must be collected and disposed of, is requiring ever increasing funds to manage it and is creating increasing environmental concerns due to large landfill sites which are not properly operated and are causing major pollution. Any possible method of saving on the quantity of waste going to landfill must be implemented. In the developing world reclamation of recyclable waste products, or re-usable items from the municipal waste stream, has become an important source of revenue for many people who cannot find formal employment.

MUNICIPAL SOLID WASTE MANAGEMENT IN CHENNAI CITY, INDIA
© IWWG International Waste Working Group (10/2007)
Municipal Solid Waste includes commercial and residential wastes generated in municipal or notified areas, in either solid or semi-solid form excluding industrial hazardous wastes, but including treated bio-medical wastes (MoEF, 2000). The quality and quantity of MSW generated by a particular community will vary according to their socio-economic status, cultural habits, urban structure, population and commercial activities. Asian countries are facing MSWM problems due to the rapid growth in MSW generation rate. The total quantity of waste generated by 23 metro cities in India was 30,000 tpd in 1999, which has increased considerably to about 52,000 tpd (Inance et al, 2004).

WATER AND LEACHATE MANAGEMENT AT A SANITARY LANDFILL IN EXTREME TROPICAL CONDITIONS, KUCHING, SARAWAK, MALAYSIA
© IWWG International Waste Working Group (10/2007)
Kuching Integrated Waste Management Park (KIWMP) is located in the state of Sarawak, Malaysia. It has three main components; sanitary landfill, secure landfill and a hazardous waste incinerator. This site was identified after an intensive geographical and geological research was carried out. The total area covers 112 ha. Both sanitary and secure landfill were constructed section by section using TRISOPLAST as the base liner which is a highly impermeable and in many respects, a liner of superior to conventional liner systems. This seems fit to the requirement of this “fast track” project which was completed on 30th October 2004. In 2005 at the 19th Sardinia Symposium a presentation about the Park in general has already been given (Damiecki et al, 2005). This presentation will focus on the water and leachate management system.

LEACHATE MANAGEMENT STRATEGIES AT LARGE TROPICAL LANDFILLS: A CASE STUDY
© IWWG International Waste Working Group (10/2007)
At tropical landfills, the demands on leachate management are often onerous and most acute in the initial stages of a landfill development. The daily and annual leachate generation rates can be very high, and leachate treatment can form a significant proportion of the landfill operating cost. Therefore, the development of an effective leachate management system is an essential part of the financial viability of a tropical landfill. Once the management system is developed, robust financial projections for leachate treatment throughout the life of a project can be derived. The Bukit Tagar landfill, near Kuala Lumpur, in Malaysia, illustrates the complexity of developing viable leachate management systems for tropical landfills, and highlights the importance of the relationships between the design, construction and operation.

Mai-Fest für den Umweltschutz - IFAT 2008 in München
© Deutscher Fachverlag (DFV) (5/2008)
Internationaler und größer - die IFAT 2008. Zur weltweit bedeutendsten Messe für Wasser, Abwasser, Abfall und Recycling werden vom 5. bis 9. Mai in München mehr als 100.000 Besucher erwartet. Für sie gibt es mit rund 2.500 Ausstellern ein noch breiteres Angebot als vor drei Jahren.