TECHNOLOGY NEEDS

Seeking Technologies for Solid Household Waste Treatment

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Nowadays, how to manage solid household waste effectively is a great concern for officials throughout Vietnam.


Background / Description

Solid household wastes are wastes from the lives and activities of human and animal. Wastes are produced from households, industrial zones, public places, malls, from agricultural activities, constructions, from hospitals, waste treatment facilities, etc. In particular, solid household waste accounts for the highest proportion.

The amount and constituents of waste differ in each province, country or area, depending on the local policies, economic and technological development, as well as the awareness and literacy level of the people. Every activity in the normal course of living, doing business, travelling, etc. produce a significant amount of waste.

Common solid waste treatments:

·         Incineration: This is the most common treatment for solid wastes globally, especially for toxic industrial wastes and harmful medical wastes. The treatment of fume from the burning is an issue that demands special attentions.

·         Sanitary landfill: This is the simplest and most common treatment. Landfills are usually used to treated non-reuseable municipal wastes, ash from incinerators, and industrial wastes. Harmful and radioactive wastes are also buried in specifically-designed landfills.

·         Composting: This treatment is used on non-toxic organic matters by first dehydrate, then treat until it becomes porous and moist. The final results of the decomposing process are carbon dioxide , water and stable organic compounds such as lignin, cellulose, fibers, etc.

·         Recycling: Recyclable wastes such as metal, plastic and paper are sold by households to junk collectors, then transferred to crafting villages. The recycling technologies in crafting villages are mostly outdated, the infrastructures are lacking, the businesses are small-scaled, leading to severe environmental pollutions in some areas.

Technical Specifications

Seeking advanced treatment technologies meeting the following requirements:

·         System capacity range: 50 tons/day; 100 tons/day; 600 tons/day;

·         Buried proportion after treatment: less than 10 percents;

·         Technology meeting standards of Ministry of Natural Resources and Environment and current technology transfer regulations;

·         Technology is reliable (applied in some areas in Vietnam with good results);

·         Reasonable treatment cost for each waste unit .

Form of Cooperation

Consultancy and full transfer of technology.

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