MICROBIOLOGIC AGENT INPUT METHOD, AUTOMATIC INPUT DEVICE OF MICROBIOLOGIC AGENT, AND WASTEWATER TREATMENT SYSTEM

To provide a microbiologic agent input method, an automatic input device of a microbiologic agent, and a wastewater treatment system, capable of automating production and input of a microbiologic agent.SOLUTION: Seed microorganisms are periodically proliferated to produce a prescribed microbiologic agent using a proliferation tank for producing the microbiologic agent by proliferating the seed microorganisms of aerobic microorganisms containing at least one aerobic microorganism that decomposes oil contained in oil-containing wastewater, and the produced prescribed microbiologic agent is put into the oil-containing wastewater. In this case, as the seed microorganisms, the seed microorganisms that are kept alive, separately and kept refrigerated, and have a population concentration of 1×10CFU/mL to 5×10CFU/mL are put into the proliferation tank as a raw material of a predetermined volume, and a predetermined volume of the seed microorganisms are proliferated as a raw material in the proliferation tank, to produce the microbiologic agent having a volume of 50 to 500 times the predetermined volume and a population concentration of 1×10CFU/mL to 2×10CFU/mL, and the produced microbiologic agent is put into the oil-containing wastewater.SELECTED DRAWING: None 【課題】 微生物製剤の製造や投入を自動化することが可能な微生物製剤の投入方法、微生物製剤の自動投入装置及び廃水処理システムを提供すること。【解決手段】 油脂含有廃水に含まれる油脂を分解する少なくとも１種の好気性微生物を含む好気性微生物群の種微生物を増殖して微生物製剤を製造する増殖槽を用いて定期的に前記種微生物を増殖して所定の微生物製剤を製造し、製造した所定の微生物製剤を油脂含有廃水に投入するに際し、前記種微生物として、別途冷蔵保管されて生存状態である種微生物であって個体数濃度が１×１０７ＣＦＵ／ｍＬ〜５×１０９ＣＦＵ／ｍＬのものを所定容量原料として前記増殖槽に投入し、前記増殖槽により前記種微生物の所定容量を原料として増殖して、容量が前記所定容量の５０倍〜５００倍で個体数濃度が１×１０７ＣＦＵ／ｍＬ〜２×１０１０ＣＦＵ／ｍＬの微生物製剤を製造し、製造した微生物製剤を油脂含有廃水に投入する。【選択図】なし