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JP52005969 |
PURPOSE: A sewage disposal method which can effectively use treating agents such as adsorbent,ion exchange resin,translucent film and the like.
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JP52005948 |
PURPOSE: A dissolved oxygen amount control equipment by lessening an air amount to an exposure vessel to the least,heightening a treatment effect and to perforning optional operation of a blower in an active mud method.
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JP52005949 |
PURPOSE: A method of stably treating leaching sewage generated in a dust and dirt filled-in ground having large qualitative and quantitative change.
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JP52003267 |
PURPOSE: To advance maintenance and control of purification tank as well as to prevent the fall of water quality of water to treat by curgbing the generation of scum in the precipitation tank.
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JP52003252 |
PURPOSE: To provide an apparatus capable of preparing automatically neutralization additive fluid medicine for waste water.
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JP51146858 |
PURPOSE: To realize accurate volume control employing a controller with simple structure instead of computer.
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JP51144066 |
PURPOSE: To feed exposure air in appropriate amount by estimating the concentration of organic pollutant substances in water that is to be treated without needing the on-line measurement.
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JP51144067 |
PURPOSE: To attain appropriate blower operation by feeding air in an amount to meet the discharging standards.
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JP51133952 |
PURPOSE: To provide a means to limit dissolved oxygen (DO) value to exceed upper and lower limits in any portion of an aeration tank.
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JP51122957 |
PURPOSE: To perform a stable control as a whole aeration tank characterized in that DO concentration detectors are provided at a plurality of positions along the flow direction of the tank and computed between detection signals respectiv...
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JP51120056 |
PURPOSE: To provide a waste liquid treatment system based upon active mud method, which system includes a simple and inexpensive automatic control system.
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JP51117452 |
PURPOSE: To provide a control system for an active sewage treatment facility in which a substate load is used as a command value.
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