| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable introduction of wastewater treatment equipment of the system into any place provided that it has only a small required space, accordingly installation of the equipment even in a restaurant and also reduction in initial cost and running cost required for the system to comparatively low levels. SOLUTION: The treatment using this system comprises: a filtration stage for charging wastewater 3 contg. oily pollutants 5 into a storage vessel 50, subjecting the oily pollutants 5 to decomposition with fat/oil-digestive bacteria 7 in the storage vessel 50 and also there, performing wastewater filtration operation with a solely physical filtration medium 9, to continuously purify the wastewater 3 for a prescribed time and to discharge purified water; and a cleaning stage for stopping the charge of the waste water 3 contg. the oily pollutants 5 into the storage vessel 50, thereafter heating the waste water 3 and the filter medium 9, remaining in the storage vessel 50, by a heating means, agitating them with an agitation means and further supplying air to them by an air supply means, to mainly clean the oily pollutants 5 captured on the filter medium 9, with fat/oil-digestive bacteria 7.</p> |
