MODERN METHODS OF STREET CLEANING 



place was at a certain railway terminus. From here 

 four railway cars were sent each day to distant villages. 

 This railway terminus was finally abolished, and it has 

 not since been possible to make a similar arrangement. 



Purchasers can be found for only part of the refuse 

 at the city dumps. With the building up of the suburbs, 

 the dumping places have been pressed farther and 

 farther away and this has raised the cost of removing 

 the refuse. Complaints of noxious insects and of 

 offensive odors grow more and more so that now 

 suitable places for dumping can hardly be found. These 

 difficulties have caused the city, especially since the 

 establishment of the Hamburg plant for the burning 

 of refuse, to inquire into the question of incineration. 

 Trials have been made with several carloads of Cologne 

 house refuse in the Hamburg plant. These trials have 

 resulted favorably. On this ground a committee was 

 finally appointed to visit different burning plants in 

 England and other plants for the disposal of refuse. 

 This committee favored the installation of a refuse 

 destructor in Cologne. The following conclusions show 

 some of the principles which this city committee believed 

 were correct in dealing with this important question. 



As to the means by which the refuse could be made 

 to generate heat in an incinerating plant, the com- 

 mittee's judgment favored only the newest 



Studies of 



Refuse DC- and best works. In the older plants of 

 England the utilization of the heat had not 

 been considered by the designers and the newer works, 

 therefore, showed better worth in this respect. The 

 value of the heat which could be procured from burn- 

 ing the refuse of Cologne was estimated to average 

 one-eighth the value of coal. Accepting the fact that 



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