| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a waste liquid treatment technique capable of changing organic matter wastewater with a high concentration to water capable of being discharged to rivers, or the like, without adding a flocculant to the wastewater or heating the wastewater and capable of eliminating the occurrence of sludge accompanied by treatment work to also suppress the occurrence of an offensive smell. <P>SOLUTION: Waste liquid treatment equipment is equipped with a storage tank 2 for storing a Shochu (distilled liquor in Japan) waste liquid 1 along with activated sludge to anaerobically treat the same, a plurality of aeration tanks 3 for stepwise treating the treated waste liquid aerobically, a nitrification and denitrification tanks 4 and 5 both of which respectively nitrifying and denitrifying the treated waste liquid, a filtering treatment tank 6 for separating the treated waste liquid into a solid and water by a separation membrane 7, a regenerated water tank 9 for oxidizing/decomposing organic matter with a photocatalyst 8 to form regenerated water, and a septic tank 11 for purifying regenerated water using activated carbon 10. This treatment equipment is provided with a sludge return pipe 30 for returning the solid to the storage tank, a pump P for sprinkling a part of regenerated water into the storage tank 2, a water feed pipe 18 and a water sprinkler 34 besides the aeration tank 3, the nitrification tank 4 and the denitrification tank 5. <P>COPYRIGHT: (C)2004,JPO |
