Abstract: A wire harness includes a first connector and a second connector respectively provided at opposite ends of a cable, protective members that are arranged side by side in a longitudinal direction of the cable and cover the cable, a first fixing member that is provided on the protective member closest to the first connector and configured to fix the wire harness to a mounting target, and a second fixing member that is provided on the protective member closest to the second connector and configured to fix the wire harness to the mounting target. The cable is covered with the protective members in an entire region between the first fixing member and the second fixing member. End portions of each pair of the protective members that are adjacent to each other in the longitudinal direction overlap with each other to slide on each other, thereby forming a sliding portion.

Abstract: A wastewater treatment apparatus includes: an air diffusing unit that supplies gas to nitrogen-containing water, so that ammonia contained in the nitrogen-containing water is nitrified to nitrate according to a flow of the water, and each desired proportion of the nitrate is denitrified at each position along the flow direction; a denitrification confirming unit provided at a halfway position between an upstream-side denitrification zone for obtaining a requisite minimum denitrified nitrogen amount and a downstream-side nitrification zone for obtaining ultimately required nitrified water quality, which follows the upstream-side denitrification zone on a downstream side thereof; and a gas supply-amount control unit that controls a gas supply amount from the air diffusing unit at least on an upstream side of the denitrification confirming unit, so that a desired proportion of the nitrate is denitrified at the halfway position, based on the denitrification state confirmed by the denitrification confirming unit.

Abstract: A wastewater treatment apparatus includes an air diffusing unit, a denitrification confirming unit, a nitrification confirming unit, a gas supply-amount control unit. The air diffusing unit supplies gas to nitrogen-containing water. The denitrification confirming unit provided at a first predetermined position confirms a denitrification state whether a desired proportion of the nitrate has been denitrified. The nitrification confirming unit provided at a second predetermined position confirms a nitrification state whether a desired proportion of the ammonia has been nitrified. The gas supply-amount control unit controls a gas supply amount at least on an upstream side of the denitrification confirming unit, so that the desired proportion of the nitrate is denitrified at the first predetermined position, and controls the gas supply amount at least on an upstream side of the nitrification confirming unit, so that the desired proportion of the ammonia is nitrified at the second predetermined position.

Abstract: A method of wastewater reutilization by which reusable water can be stably obtained from a wastewater. Ozone is added to a wastewater, such as water resulting from sewage treatment, in such a small amount as to result in a residual ozone concentration as measured before membrane filtration of 0.01-1.0 mg/L. Ozone is thus brought into contact with fine solids contained in the wastewater to alter the surface properties of the fine solids so that the solids are easily to coagulate. Thereafter, a coagulant, e.g., PACl, is added from a coagulant addition device (3). The fine solids are coagulated in a coagulation tank (5) or a line mixer and the resultant water is subjected to membrane filtration with an ozone-resistant separation membrane (6) such as ceramic membrane. Thus, reusable water is obtained which has a residual ozone concentration, as measured after filtration through the membrane, less than 0.5 mg/L.

Abstract: A wastewater treatment apparatus includes: an air diffusing unit that supplies gas to nitrogen-containing water, so that ammonia contained in the nitrogen-containing water is nitrified to nitrate according to a flow of the water, and each desired proportion of the nitrate is denitrified at each position along the flow direction; a denitrification confirming unit provided at a halfway position between an upstream-side denitrification zone for obtaining a requisite minimum denitrified nitrogen amount and a downstream-side nitrification zone for obtaining ultimately required nitrified water quality, which follows the upstream-side denitrification zone on a downstream side thereof; and a gas supply-amount control unit that controls a gas supply amount from the air diffusing unit at least on an upstream side of the denitrification confirming unit, so that a desired proportion of the nitrate is denitrified at the halfway position, based on the denitrification state confirmed by the denitrification confirming unit.

Abstract: A wastewater treatment apparatus includes an air diffusing unit, a denitrification confirming unit, a nitrification confirming unit, a gas supply-amount control unit. The air diffusing unit supplies gas to nitrogen-containing water. The denitrification confirming unit provided at a first predetermined position confirms a denitrification state whether a desired proportion of the nitrate has been denitrified. The nitrification confirming unit provided at a second predetermined position confirms a nitrification state whether a desired proportion of the ammonia has been nitrified. The gas supply-amount control unit controls a gas supply amount at least on an upstream side of the denitrification confirming unit, so that the desired proportion of the nitrate is denitrified at the first predetermined position, and controls the gas supply amount at least on an upstream side of the nitrification confirming unit, so that the desired proportion of the ammonia is nitrified at the second predetermined position.

Abstract: A mass flow rate-controlling apparatus including a mass flow rate-detecting mechanism 8 a flow rate-controlling valve mechanism 10 and a mechanism 44 for controlling the flow rate-controlling valve mechanism based on a flow rate-setting signal S0 input from outside and a flow rate signal S1, the flow path being provided with a pressure-detecting mechanism 42 for detecting the pressure of the fluid to output the detected pressure signal, so that the controlling mechanism selectively switches a first control mode for controlling the mass flow rate based on the flow rate signal and the flow rate-setting signal without using the detected pressure signal, and a second control mode for controlling the mass flow rate based on the detected pressure signal, the flow rate signal and the flow rate-setting signal, based on a pressure variation obtained from the detected pressure signal.

Abstract: A method for calibrating a mass flow controller comprising a calibrating valve disposed on the most upstream side of a path, a mass flow rate control valve mechanism, a tank provided at the path on the upstream side of the mass flow rate control valve mechanism, a mass-flow-rate-sensing means, a pressure-sensing means, a means for controlling the mass flow rate control valve mechanism, and a mass flow rate calibration control means, the method comprising the steps of (1) permitting a fluid at a set mass flow rate to flow through the path, (2) setting the mass flow rate control valve mechanism at a degree of opening that the mass flow rate of the fluid is equal to the set mass flow rate, (3) closing the calibrating valve, (4) measuring the pressure and mass flow rate of the fluid after a fluid flow from the tank is stabilized, (5) determining a variation ratio of the pressure and mass flow rate to reference pressure and mass flow rate measured by the same procedures in an initial state, and (6) performing cali

Abstract: A mass flow controller arranged to perform mass flow test operation in the controller itself by incorporating a test tank. The mass flow controller is provided, in a channel (6) for feeding fluid, with a means (8) for detecting the mass flow rate of fluid flowing through the channel and outputting a flow rate signal, and a mechanism (10) for controlling the mass flow rate by varying the valve opening by a valve drive signal.

Abstract: The invention provides a side stream type membrane bioreactor process which does not cause an excessive fall in the MLSS concentration in a bioreactor, does not require any additional effluent treatment facility for discharging backwash effluent, and can further ensure the stability of the membrane filtration performance of a separation membrane. According to the invention, in a side stream type membrane bioreactor process, a backwash effluent containing foulants that are generated by backwashing a separation membrane is collected in a backwash effluent tank, and subjected to ozone treatment, and the resultant is returned to a bioreactor. By this ozone treatment, the foulants close to the membrane pore size of the separation membrane are made fine or are made into a state be easily taken into activated sludge flocs. Therefore, even when the treated effluent is returned to the bioreactor, the membrane filtration performance of the separation membrane is not deteriorated.

Abstract: The invention provides a side stream type membrane bioreactor process which does not cause an excessive fall in the MLSS concentration in a bioreactor, does not require any additional effluent treatment facility for discharging backwash effluent, and can further ensure the stability of the membrane filtration performance of a separation membrane. According to the invention, in a side stream type membrane bioreactor process, a backwash effluent containing foulants that are generated by backwashing a separation membrane is collected in a backwash effluent tank, and subjected to ozone treatment, and the resultant is returned to a bioreactor. By this ozone treatment, the foulants close to the membrane pore size of the separation membrane are made fine or are made into a state be easily taken into activated sludge flocs. Therefore, even when the treated effluent is returned to the bioreactor, the membrane filtration performance of the separation membrane is not deteriorated.

Abstract: Shutoff valve apparatus comprising: a valve block having a valve chest on which gas collects temporarily, an inlet flow path which makes gas flow into a valve chest, an outlet flow path into which gas is made to flow out of a valve chest, a valve seat located in the inlet port of an inlet flow path, or the outlet port, a diaphragm valve element located in the opposed position of the valve seat and closes the valve port by contacting with the valve seat, pressing means for pressing diaphragm valve element, an actuator plate disposed at the opposite side of the valve chest so that the diaphragm valve element may be opposed, an operation chamber divided with the actuator plate, and an operation gas supply exhaust mechanism in which operation gas is made to supply or exhaust into the operation chamber.

Abstract: A method of wastewater reutilization by which reusable water can be stably obtained from a wastewater. Ozone is added to a wastewater, such as water resulting from sewage treatment, in such a small amount as to result in a residual ozone concentration as measured before membrane filtration of 0.01-1.0 mg/L. Ozone is thus brought into contact with fine solids contained in the wastewater to alter the surface properties of the fine solids so that the solids are easily to coagulate. Thereafter, a coagulant, e.g., PACl, is added from a coagulant addition device(3). The fine solids are coagulated in a coagulation tank(5) or a line mixer and the resultant water is subjected to membrane filtration with an ozone-resistant separation membrane(6) such as ceramic membrane. Thus, reusable water is obtained which has a residual ozone concentration, as measured after filtration through the membrane, less than 0.5 mg/L.

Abstract: Shutoff valve apparatus comprising: a valve block 80 having a valve chest on which gas collects temporarily, an inlet flow path 34 which makes gas flow into a valve chest, an outlet flow path 40 into which gas is made to flow out of a valve chest, a valve seat 44 located in the inlet port of an inlet flow path, or the outlet port, a diaphragm valve element 38 located in the opposed position of the valve seat and closes the valve port by contacting with the valve seat, pressing means 82 for pressing diaphragm valve element, an actuator plate 84 disposed at the opposite side of the valve chest so that the diaphragm valve element may be opposed, an operation chamber 86 divided with the actuator plate, and an operation gas supply exhaust mechanism in which operation gas is made to supply or exhaust into the operation chamber.

Abstract: A method for calibrating a mass flow controller comprising a calibrating valve disposed on the most upstream side of a path, a mass flow rate control valve mechanism, a tank provided at the path on the upstream side of the mass flow rate control valve mechanism, a mass-flow-rate-sensing means, a pressure-sensing means, a means for controlling the mass flow rate control valve mechanism, and a mass flow rate calibration control means, the method comprising the steps of (1) permitting a fluid at a set mass flow rate to flow through the path, (2) setting the mass flow rate control valve mechanism at a degree of opening that the mass flow rate of the fluid is equal to the set mass flow rate, (3) closing the calibrating valve, (4) measuring the pressure and mass flow rate of the fluid after a fluid flow from the tank is stabilized, (5) determining a variation ratio of the pressure and mass flow rate to reference pressure and mass flow rate measured by the same procedures in an initial state, is and (6) performing c

Abstract: A mass flow rate-controlling apparatus comprising a mass flow rate-detecting means 8 for detecting a mass flow rate to output a flow rate signal, and a flow rate-controlling valve mechanism 10 for changing a valve-opening degree in response to a valve-operating signal to control the mass flow rate in a flow path 6 for a fluid, and further comprising a means 44 for controlling the flow rate-controlling valve mechanism based on a flow rate-setting signal S0 input from outside and a flow rate signal S1, the flow path being provided with a pressure-detecting means 42 for detecting the pressure of the fluid to output the detected pressure signal, so that the controlling means selectively switches a first control mode for controlling the mass flow rate based on the flow rate signal and the flow rate-setting signal without using the detected pressure signal, and a second control mode for controlling the mass flow rate based on the detected pressure signal, the flow rate signal and the flow rate-setting signal, based

Abstract: The invention is intended to provide a mass flow control device incorporating a verification tank, in which the mass flow testing operations are conducted by the device itself. A mass flow control device comprises control means 18 for controlling a flow control valve mechanism based on an externally input flow set signal and a flow signal. The mass flow control device is equipped with a mass flow detector means 8 and a flow control valve mechanism 10 both of which are set in a channel 6 through which a fluid flows. The mass flow detector means 8 detects the mass flow of the fluid that flows through the channel and outputs the flow signal. The flow control valve mechanism 10 controls the mass flow by altering the valve aperture by means of valve drive signals. The mass flow control device is also equipped with a verification valve 42, a verification tank 44 and pressure detector means 46 in the channel. The verification valve 42 opens and closes the channel. The verification tank 44 has a certain volume.

Abstract: A method for treating an organic sludge is provided which can sufficiently and efficiently solubilize an organic sludge to afford a high load of anaerobic digestion treatment with an improved digestion ratio and methane gas recovery amount thereby to widely decrease the amount of the organic sludge discharged from the method. The method includes a hot alkaline treatment for causing the organic sludge to become alkaline while maintaining the temperature of the sludge to ambient -100.degree. C. to solubilize organic matters in the sludge, and an anaerobic digestion treatment of anaerobically digesting the organic sludge after the hot alkaline treatment at a temperature of 20.degree.-60.degree. C. at a pH of 7.3-9.2.

Abstract: This invention discloses a developing apparatus wherein a brush of a developing agent is formed on a developing sleeve by a magnetic field of a permanent magnet disposed inside the developing sleeve, and at least the developing sleeve is rotated while the brush is kept in contact with a photosensitive body, thereby developing an electrostatic latent image formed on the photosensitive body. In this apparatus, an agitating member having magnetic ring portions which abut against the developing sleeve and an agitating portion for agitating the developing agent is pivotally disposed in a developing vessel to be parallel to the developing sleeve, and a rotation detecting unit for outputting a signal corresponding to a rotational speed of the agitating member and a residual amount detecting unit for detecting a residual amount of the developing agent in the developing vessel in accordance with an output from the rotation detecting unit are provided.

Abstract: A paper feeding device used for feeding stacked paper to an electrophotographic copying machine is provided with a lift for a stack of papers, which move the top sheet against a swingably supported feeding roller as the size of the stack decreases under use. Forwardly of the feeding roller in the direction of travel of the paper is a plate in frictional contact with the roller, the paper being thus fed forwardly to the copying machine through the nip between the roller and plate. This arrangement avoids the problem of a multifeed of the sheets. The feeding-out operation may be further improved by the provision of separating claws engaging the leading corners of the paper as it passes from the feeding roller. Raising of the lift is controlled by a detecting device actuated by position of the swingable support for the feeding roller.