1899 - 1800United States of America

The disposal of garbage by the reduction method was first introduced in the United States at Buffalo, N. Y., in 1886. The plant installed at Buffalo was known as the Merz process and the disposal was made by placing the garbage in dryers so as to break down the material and drive off the moisture, after which the solids were placed in extractor tanks and the grease recovered by means of a solvent, such as benzene and naphtha. Since the installation of the first plant at Buffalo, reduction plants have been constructed in the majority of the larger cities of the United States. The plants operated at the present time by what is known as the Merz process differ from the first installations in regard to the manner in which they are operated. In the first installations of the Merz process, the garbage was placed in steam jacketed dryers which were expensive to operate and necessarily slow in drying on account of the low temperature. In the present plants of the Merz type the garbage is first crushed or disintegrated and then passed through continuous direct heat dryers, so that the garbage comes in direct contact with the combustion gases and is dried while passing through the dryer. A few years after the installation of the first plants of the Merz type, plants were installed at Cincinnati, Ohio, and Providence, which used what is known as the “Simonin Process.”


Reference: http://ajph.aphapublications.org/doi/pdf/10.2105/AJPH.2.12.937