Development of mass production technology of mushroom using sewage sludge and consideration for agricultural use of CO₂ gas generated in mushroom cultivation process

Abstract

 In this study, in order to develop the mass production technology necessary for the implementation of edible mushroom cultivation using sewage sludge (dehydrated sludge), mass production test of oyster mushroom medium using dry steam was carried out. As a result, by stirring the medium for 7 minutes with a dry steam stirrer, dehydrated sludge and other medium materials were uniformly stirred, and it was possible to create a medium for mass production. It was also found that the yield characteristics and morphological characteristics of the fruiting bodies of the dry steam injection medium were comparable to the control medium. In addition, CO₂ fertilization test using passion fruit was carried out for the purpose of developing agricultural application technology of CO₂ generated in the mushroom cultivation process. It was apparent that CO₂ fertilization increased the sugar acid ratio of the fruit and improved fruit quality.