Abstract: A water treating device includes a water container for containing water; an electrolyzing chamber for sterilizing water; a water treatment line which couples the electrolyzing chamber with the water container; a sensor for measuring residual chlorine concentration; and a device for controlling the amount of the water to be electrochemically decomposed in the electrolyzing chamber on the basis of the residual chlorine concentration measured by the sensor to keep the residual chlorine concentration of the water to be fed back into the water container within a predetermined range. A bypass line is provided which is branched from the water treatment line upstream of the electrolyzing chamber for sampling the water, introducing the sampled water into the sensor for the measurement of the residual chlorine concentration thereof, and discharging the sampled water into the electrolyzing chamber after the measurement.

Abstract: To provide an apparatus construction which makes it possible to perform a water treatment sequence by automatic control for reducing nitrate (nitrite) ions in water being treated through an electrochemical reaction and substituting nitrogen gas for the resulting ammonia for removal of ammonia from the water; and a detecting method using the apparatus for automatically detecting the progress of reduction or denitrification, or degradation of the treating capability of cathode or anode. The water treatment apparatus comprises a cathode (15) which reduces nitrate (nitrite) ions through an electrochemical reaction, an anode (16), an electrolytic bath (10) containing the cathode and the anode, and a hydrogen gas sensor (30) which measures a hydrogen gas concentration in the electrolytic bath (10). Water to be treated is introduced into the electrolytic bath (10), and an electric current is applied to the water.

Abstract: Into an electrolytic bath storing water to be treated, saturated sodium chloride solution identified as an electrolysis accelerator is added from an electrolysis accelerator bath. The water to be treated is subjected to electrolysis. In the electrolytic bath, water to be treated is introduced from an inlet during the electrolysis process. The water subjected to electrolysis in electrolytic bath is output to a reservoir via an overflow port. A plurality of electrode pairs are provided in the electrolytic bath. During the electrolysis process, the value of the current flowing across the electrodes of the electrode pair arranged most upstream of a water channel from the inlet to the overflow port in the electrolytic bath is detected, and control is provided such that the current value is within a predetermined range by adjusting the concentration of the accelerator in the electrolytic bath.

Abstract: Water to be treated within a water tank is circulated between the water tank and an electrolysis vessel by means of a circulating pump. In the electrolysis vessel, hypochlorous acid is generated by electrolysis with a pair of electrodes. The generated hypochlorous acid is introduced into the water tank and used for sterilization of the water to be treated. A first three-way valve is controlled to guide the water to be treated within the electrolysis vessel either to the water tank or to a drain. For a prescribed period of time after the polarities of the electrodes constituting the electrode pair are switched to each other, the water to be treated within the electrolysis vessel is guided to the drain to prevent impurities attached to the electrode surface from being introduced into the water tank.

Abstract: The present invention provides a water treating device, which comprises: a water container for containing water to be treated; an electrolyzing chamber for sterilizing the to-be-treated water by way of electrochemical decomposition through energization of an electrode set consisting of at least two electrode plates; a water treatment line through which the to-be-treated water is introduced into the electrolyzing chamber from the water container and fed back into the water container after the sterilization of the water in the electrolyzing chamber; a residual chlorine sensor for measuring the residual chlorine concentration of the to-be-treated water before the water is introduced into the electrolyzing chamber; and control means for controlling the amount of the to-be-treated water to be electrochemically decomposed in the electrolyzing chamber on the basis of the residual chlorine concentration measured by the residual chlorine sensor to keep the residual chlorine concentration of the water to be fed back in

Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring, from a pool storing water, the water into the electrolytic tank and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of the water, and a circulating pump provided on the downstream side of the electrolytic tank on the water treating path in order to circulate the water, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.

Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring water in a pool and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of water, and control means for controlling the energization of the electrode on the basis of the measured value by the residual chlorine sensor, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.

Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring, from a pool storing water, the water into the electrolytic tank and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of the water, and a circulating pump provided on the downstream side of the electrolytic tank on the water treating path in order to circulate the water, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.

Abstract: The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring water in a pool and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of water, and control means for controlling the energization of the electrode on the basis of the measured value by the residual chlorine sensor, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.

Abstract: A clothes dryer comprising a body having a drying chamber defined for accommodating clothes; a heater provided in the body; a heated air path for supplying dried air heated by the heater to the drying chamber to dry the clothes placed in the drying chamber; a door for closing and opening the drying chamber; a porous member impregnated with an agent; a supporting member provided on the door, detachably holding the porous member and provided with an aperture for supplying the agent held by the porous member into the drying chamber.

Abstract: A clothes dryer having a body with heater therein and a rotatable drying chamber is provided with a dual side rotating bladed heat exchange type fan having in its outer portion a group of grooves; and a partition member having an opening whose inner surface is opposed to the outer surface of said dual side bladed fan for separating paths of heated air and cooling air together with said dual side bladed fan in said body; the partition member has a group of fixed grooves interleaved with the fan rotating grooves to form a labyrinth seal; the fixed grooves extend from a base or the partition member and have a rising portion extending in the heated air path to inhibit the leakage of heated air from the heated air path to the cooling air path and have an opening to provide communication between the heated air and the cooling air.