Waste Treatment

Industrial Waste, Domestic Waste, Organic Waste, Inorganic Waste, Hospital Waste and many other waste.

Tuesday, December 27, 2011

Electronic Waste Recycle

In trying to reprocess or recycle the phone waste LG have the program named “Sprint BuyBack Program.” This program is base on the environmental protection from electronic waste that can contains of many kind materials. Electronic waste itself contains of plastic, metal, and also contain hazardous waste like heavy metal, that composed in electronic parts.

Mostly waste contain on electronic waste can’t degrade by microorganism, or need long time to self decomposed naturally. The Industry that create electronic product should provide a recycle process for their product waste because third party who process this usually very expensive and can make burden to production cost.

Many electronic industry can produce cheap product but they don’t process their waste or think their product pollution effect to the environment. Mostly people just through away their broken electronics and don’t know the effect to the environment. Globally people will pay very expensive to the global environmental effect because of careless behavior to every product waste.

Three R principle (Reduce, Reuse and Recycle) have run in Industry that produce raw material for other industry, but for consumer product this method can’t work well, because the end users don’t think to the problem will arise. End users just use and through away of their broken product, they just think their own, but for million people who also through away their broken product will make big pollution to the environment. For consumer product, producers also must think of every product already sell to customers about the treatment of the waste.

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Wednesday, December 7, 2011

Waste Reduction

One the way on how to reduce waste from industry do by use on power generator as fuel material substitution. To use waste as raw material subtitute waste is not easy because there are a limitation on how to use this waste as material especially if those waste is hazardous waste. There are calory requirement that should contain on the waste, for certain country the waste should contain of minimum 2500 calory. Some inceneration service modify by mixing certain waste with other material or other waste in order get higher calory contain.

Energy recovery perhaps the easiest way to remove waste either dispose waste that often make contamination to other place. About 70% to 80% of residential and commercial solid waste is combustible and it has about one third the heating value of an equal weight of coal.

The energy can be recovered in several ways. First, the raw waste can be incenerated with the heat used to produce steam for heating buildings, noncombustible materials can be recovered from the ashes. Second, the refuse can be shredded into small pieces, then air classified by blowing the waste up into a column, separating out the light material (termed RDF, for refuse derived fuel), which is suitable as fuel, the heavy material remaining at the bottom of the column contains reclamable metals and glass. Third, the separated combustibles can be incinerated in clean combustion units, such as fluidized beds, to produce electricity. Finally, the lighter organic wastes may be decomposed chemically by Pyrolisis to produce oil or gas fuels.

With the cost of energy increasing in the 1970s, the use of the energy content of solid wastes began to receive more attention. Several cities have constructed or are planning facilities to extract energy from waste. Many energy recovery plants are already in operation or are undergoing testing in the United Stated.

Effort to increased the extraction of energy and materials from urban refuse will continue as the cost of energy, disposal and raw materials rise. Although the movement toward recycling and energy production from waste may be helpful, it is not expected to reduce waste disposal loads so long as a high consumptio, throughaway society continues to generate increasing quantities of discharded material.

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