Major waste management firms become composters

Article Abstract:

Big solid waste management companies in the US see a future in composting and eight out of the top ten companies are engaged in it. A survey of 21 composting firms show that woody residuals and yard trimmings are the common feedstock. Other forms of feedstock include biosolids, paper fibers, and prune pits. WMX Technologies, Browning-Ferris Industries, and Laidlaw Waste Systems, Inc. are the top three firms. Eleven firms compost only yard trimmings. Only Commercial Disposal Company does not include yard trimmings in the feedstock. Open windrows are used by six of 18 companies.

Management, Reports, Waste management, Compost, Waste Management Inc. (Houston, Texas), Browning-Ferris Industries Inc., BFI, WMX, Laidlaw Waste Systems Inc.

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Getting it out of the bag

Article Abstract:

The slitter or trommel approach and the use of augers are two of the different ways of mechanically removing refuse from trash bags for recycling or composting. Developments in the debagging technology applicable to waste disposal facilities, particularly composting plants are discussed. It is important to consider economic factors, community participation, demography and processing difficulties in designing an appropriate debagging system. It is likewise suggested that the needs of the facility be evaluated before choosing a debagging method.

Equipment and supplies, Refuse disposal facilities, Waste disposal facilities

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Latest developments in debagging systems

Article Abstract:

Bags used in curbside collection programs for recyclables raise a number of issues regarding ease of collection and acceptance at site. The technology presently available to rip open collections bags at processing sites includes bag removal systems at the curb, portable units, and large systems for permanent installation. Several machines with varying capabilities are available.

Innovations, Recycling (Waste, etc.), Recycling

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