PURPOSE:To enable the discharge of treated water appropriate for a batch system by providing a treating vessel equipped with a circulating water passage on the succeeding stage side of an aerobic vessel having the discharge mechanism of specified structure and connecting the discharge pipe of the discharge mechanism to the circulating water passage. CONSTITUTION:The discharge mechanism 4 consists ...

PURPOSE:To continuously sterilize water to be treated and to remove colored substances by sending the water to be treated upward from the bottom of a treating vessel, bringing the water into contact with gaseous ozone during ascension, and treating the water with the ozone. CONSTITUTION:The water to be treated is supplied to the bottom part of the treating vessel 1, and gaseous ozone is blown from...

PURPOSE:To enhance the waste water treatment efficiency and to stabilize the metabolism of microbes by incubating microbes characteristic of the reaction in a treating vessel in a culture device as the speed bacteria, and replenishing and supplying the seed bacteria to the treating vessel. CONSTITUTION:A reaction selected from the reactions in the waste water treatment is carried out in the waste ...

In the process, the outside air is cooled by the adiabatically cooled exhaust air by means of regenerative heat transfer, and the outside air is humidified. By combination with further cooling, e.g. by means of fresh water which is required in any case, and by automatic control of the outside air and exhaust air when the outside temperature falls below the room temperature, the process can be matc...