本発明は汚水（トイレ***物を含んだ洗浄水）から有機質養液栽培用養液（硝酸化養液）を製造する方法に関するものである。
The present invention relates to a method for producing a nutrient solution for organic nutrient solution cultivation (nitration nutrient solution ) from sewage (wash water containing toilet excrement).
このようにトイレの処理水を直接、水耕栽培用養液とし利用する技術は確立されておらず、また、トイレの循環処理系がどのような処理工程を有するもので、処理工程における処理液がどのような状態の場合に有機質養液栽培に適した養液となるのか示唆する先行技術は見当たらない。
In this way, the technology to directly use the treated water in the toilet as a nutrient solution for hydroponics has not been established, and the circulating treatment system of the toilet has any treatment process. There is no prior art that suggests under what conditions it becomes a nutrient solution suitable for organic nutrient solution cultivation.
本発明が解決しようとする課題は、トイレの循環処理系における処理水を有機質養液栽培の養液として提供することである。
The problem to be solved by the present invention is to provide treated water in a circulating treatment system of a toilet as a nutrient solution for organic hydroponics .
第１の発明は、少なくとも、好気的雰囲気下で有機物分解菌担持多孔体と接触させて汚水を硝化処理する第１の工程、前記第１の工程後の処理水を活性汚泥処理する第２の工程、前記第２の工程後の処理水を好気的雰囲気下又は嫌気的雰囲気下で有機物分解菌担持多孔体と接触させて脱窒化処理する第３の工程、を備える汚水循環処理系を構築し、前記第１〜第３の工程のいずかの工程又は工程間の処理水が、ｐＨ６〜７、かつ、硝酸態窒素濃度が３０ｐｐｍ以上であることを確認した後に、当該処理水を有機質養液栽培用とする養液製造方法である。また、第２の発明は、少なくとも、好気的雰囲気下で有機物分解菌担持多孔体と接触させて汚水を硝化処理する第１の工程、前記第１の工程後の処理水を活性汚泥処理する第２の工程、前記第２の工程後の処理水を好気的雰囲気下又は嫌気的雰囲気下で有機物分解菌担持多孔体と接触させて脱窒化処理する第３の工程、を備える汚水循環処理系を構築し、前記第３の工程の処理水が、ｐＨ６〜７、かつ、硝酸態窒素濃度が３０〜１００ｐｐｍであることを確認した後に、当該処理水を有機質養液栽培用とする養液製造方法である。また、第３の発明は、前記第３の工程における多孔体が０．１μｍ〜１μｍに孔径分布のピークを有する竹炭である請求項１又は２に記載の養液製造方法である。また、第４の発明は、少なくとも、好気的雰囲気下で有機物分解菌担持多孔体と接触させて汚水を硝化処理する第１の工程、前記第１の工程後の処理水を活性汚泥処理する第２の工程、前記第２の工程後の処理水を好気的雰囲気下又は嫌気的雰囲気下で有機物分解菌担持多孔体と接触させて脱窒化処理する第３の工程、を備える汚水循環処理系であり、ｐＨ６〜７、かつ、硝酸態窒素濃度３０ｐｐｍ以上の前記第１〜第３工程のいずれかの工程又は工程間の処理水を有機質養液栽培を行う栽培工程に供し、再び前記汚水循環処理系に戻す有機質養液栽培システムである。また、第５の発明は、前記第３の工程における多孔体が０．１μｍ〜１μｍに孔径分布のピークを有する竹炭である請求項４に記載の有機質養液栽培システムである。また、第６の発明は、請求項１〜３のいずれか１項に記載の養液製造法で製造した養液を有機質養液栽培に用いる有機質養液栽培方法である。
A first invention is at least a first step of contacting an organic substance-degrading bacterium-supporting porous body under an aerobic atmosphere to nitrify sewage, and a second step of treating the sewage after the first step with activated sludge. process, the sewage circulating processing system comprising a third step, the denitrification process is contacted with organic matter degrading bacterium carrying porous body under aerobic atmosphere or anaerobic atmosphere treated water after said second step After constructing and confirming that the treated water in any one of the first to third steps or between the steps has a pH of 6 to 7 and a nitrate nitrogen concentration of 30 ppm or more, the treated water concerned which is a nutrient solution manufacturing method shall be the organic nutrient solution for cultivation. The second invention is, at least, a first step of contacting the organic substance-degrading bacteria-supporting porous body under an aerobic atmosphere to nitrify the wastewater, and the treated water after the first step is treated with activated sludge. Sewage circulation treatment comprising a second step and a third step in which the treated water after the second step is brought into contact with an organic substance-degrading bacteria-supporting porous body under an aerobic atmosphere or an anaerobic atmosphere to denitrify the treated water. After constructing a system and confirming that the treated water in the third step has a pH of 6 to 7 and a nitrate nitrogen concentration of 30 to 100 ppm, a nutrient solution for treating the treated water for organic nutrient culture. It is a manufacturing method. The third invention is the method for producing a nutrient solution according to claim 1 or 2 , wherein the porous body in the third step is bamboo charcoal having a peak of pore size distribution at 0.1 µm to 1 µm. Further, a fourth invention is, at least, a first step of contacting the organic substance-degrading bacteria-supporting porous body under an aerobic atmosphere to nitrify the wastewater, and the treated water after the first step is treated with activated sludge. Sewage circulation treatment comprising a second step and a third step in which the treated water after the second step is brought into contact with an organic substance-degrading bacteria-supporting porous body under an aerobic atmosphere or an anaerobic atmosphere to denitrify the treated water. The system is a system, pH 6 to 7, and nitrate water concentration of 30 ppm or more, any one of the steps 1 to 3 or the treated water between steps is subjected to a cultivation step of organic nutrient cultivation, and the wastewater is again treated. It is an organic hydroponics system that returns to the circulation system . Further, a fifth invention is the organic hydroponics system according to claim 4 , wherein the porous body in the third step is bamboo charcoal having a peak of pore size distribution at 0.1 μm to 1 μm . Further, the sixth invention is according to claim 1 to 3 or an organic TadashiYoeki cultivation method Ru used for organic hydroponics a nutrient solution prepared in nutrient solution process according to one of.
本発明は、少なくとも、好気的雰囲気下で有機物分解菌担持多孔体と接触させて汚水を硝化処理する第１の工程、活性汚泥処理する第２の工程、好気的雰囲気下又は嫌気的雰囲気下で有機物分解菌担持多孔体と接触させて脱窒化処理する第３の工程を有することで、トイレの汚水の循環処理を行いつつ、処理水のｐＨと硝酸態窒素濃度を指標とすることで処理水が水耕栽培に適した状態であるか否かを容易に判断でき、有機質養液栽培用養液を簡易かつ持続的に得ることが期待できる。また、前記第３の工程における有機物分解菌担持多孔体が所定の孔径を有することで当該多孔体に担持された有機物分解菌にとって好気的な雰囲気となる領域、有機物分解菌にとって嫌気的な雰囲気となる領域ができ、好気的な雰囲気の有機物分解菌担持領域では硝化反応、嫌気的な雰囲気の有機物分解菌非担持領域では脱窒化反応が起こり、トイレの洗浄水としての再利用を行いつつ、有機質養液栽培用養液としての活用が期待できる。また、トイレの循環処理系において水耕栽培に適した処理水を取り出し、野菜の水耕栽培工程に用い、再び循環処理系に戻すことで、汚水の循環再生処理と野菜栽培を同時かつ持続的に行うことが期待できる。
The present invention includes at least a first step of nitrifying sewage by contacting it with an organic substance-degrading bacterium-supporting porous body under an aerobic atmosphere, a second step of treating activated sludge, an aerobic atmosphere or an anaerobic atmosphere. By having the third step of contacting the organic substance-decomposing bacterium-supporting porous body under the denitrification process, the pH of the treated water and the concentration of nitrate nitrogen can be used as indicators while performing the circulation treatment of the sewage in the toilet. It can be easily determined whether the treated water is in a state suitable for hydroponic cultivation, and it can be expected that a nutrient solution for organic nutrient solution cultivation can be easily and continuously obtained. Further, the third region organic decomposition bacteria carrying the porous material of step is aerobic atmosphere for organic decomposition bacteria supported on the porous body by having a predetermined pore size, anaerobic atmosphere for organic decomposition bacteria Area is created, nitrification reaction occurs in the area supporting organic matter-decomposing bacteria in an aerobic atmosphere, and denitrification reaction occurs in the area not supporting organic matter-decomposing bacteria in an anaerobic atmosphere, while reused as toilet wash water. It can be expected to be used as a nutrient solution for organic nutrient solution cultivation. In addition, by extracting treated water suitable for hydroponics in the toilet circulation treatment system, using it in the vegetable hydroponic cultivation process, and returning it to the circulation treatment system again, it is possible to simultaneously and sustainably recycle wastewater and perform vegetable cultivation. Can be expected to do.
本発明によれば、人の***物からなる汚水を処理して、簡易かつ持続的に有機質養液栽培用養液として利用することができる。
According to the present invention, sewage composed of human excrement can be treated and simply and continuously used as a nutrient solution for organic nutrient solution cultivation.