 The operating results from a mobile pilot plant for anaerobic methanogenic fermentation in an industrial slaughterhouse in Israel were studied and developed a process which is an economic, hygienic and environmentally acceptable solution for slaughterhouse wastes.
Waste products of slaughterhouses such as intestinal content, blood, urine and manure of animals in preslaughter period were found to be highly contaminated with pathogenic microorganisms and also to increase considerably the COD (Chemical Oxygen Demand) of the sewage.
Anaerobic Methanogenic Thermophilic Fermentation was examined as an effective system against pathogenic bacteria such as Salmonella and coliform bacteria. The process simultaneously reduced COD and generated energy in the form of Methane gas. (Biogas – a mixture of CH4 and CO2). The Biogas was used on-site for generating hot water but can also generate steam or electricity. The process also produces other products of commercial value such as a substitute for peat-moss. The intensive work done on thermophilic digested slurry has given rise to the suggestion that some special characteristic is gained during fermentation at 55°C. One of the results of growing crops on the sieved slurry was a faster growth of the root system than on other substrates. This sieved slurry also had a positive effect on the growing “pot-plants” in greenhouses. The results of our experiments show that the integrated system is economically feasible. | 
