| abstract |
(57) [Summary] [Problem] To provide a portable preculture device near a sewage treatment tank, preliminarily culture various fermentation bacteria, and determine the processing response time and the amount of bacteria used after the purification treatment fermentation bacteria are introduced. Reduction and shortening of the fermentation treatment time in the sewage treatment tank. SOLUTION: In a casing 10 equipped with casters, a heating device 22 for a culture tank 20, a pumping pump 30, various bacterial storage tanks 50a, 50b, 50c and a various bacterial supply pump tank 52. a, 52b and 52c are provided. Various hose connection portions 32, 32b, and 32c are provided on the outer surface of the casing 10. |