| Patent application number | Description | Published |
|---|
| 20090032451 | AERATION-LESS WATER TREATMENT APPARATUS - An aeration-less water treatment apparatus including an anaerobic reactor which receives sewage to cause the sewage to flow as an upward stream, and an aerobic reactor which receives treated water from the anaerobic reactor to cause the water to flow as a downward stream so that the water contacts aerobic microorganisms and air to aerobically treat the polluted matter in the water, the apparatus further including a suspended sludge section located in a lower part of the anaerobic reactor and in which the anaerobic microorganisms are suspended in the sewage, and a carrier section located in an upper part of the anaerobic reactor and having carriers to which the anaerobic microorganisms are attached, the anaerobic microorganisms having flowed from the suspended sludge section being further attached to the carriers. | 02-05-2009 |
| 20090048103 | PHOSPHORUS COMPOUND ADSORBENT, PHOSPHORUS COMPOUND ADSORPTION SYSTEM, AND METHOD OF USING PHOSPHORUS COMPOUND ADSORBENT - A phosphorus compound adsorbent; a phosphorus compound adsorption system, wherein the phosphorus compound adsorbed can be desorbed in a neutral solvent; and a method of using the phosphorus compound adsorbent are provided. The phosphorus compound adsorbent includes a nitrogen-containing compound having an amino group at an end of the molecular structure, a support carrying the nitrogen-containing compound, and at least one metal ion selected from the group consisting of a zinc ion, a cupper ion, an iron ion, and a zirconium ion, which is fixed to the nitrogen-containing compound. | 02-19-2009 |
| 20090065441 | Heavy Metal Collection System and Heavy Metal Collection Method | 03-12-2009 |
| 20090321363 | FUNCTIONAL PARTICLES AND WATER TREATMENT METHOD EMPLOYING THE SAME - The present invention provides functional particles capable of effectively adsorbing impurities in water treatment. The particles can be rapidly separated by use of magnetic force, and hence are excellent in workability. They are magnetic particles having surfaces modified with amphipathic groups loaded thereon. The amphipathic group comprises an ammonium or carboxylate group as a hydrophilic moiety and a hydrocarbon group as a hydrophobic moiety. The hydrophobic moiety has a function of adsorbing the impurities, and the hydrophilic moiety has a function of dispersing the particles stably in water. | 12-31-2009 |
| 20100059444 | Water Treatment System - A water treatment system comprises: an oil removal apparatus including a fixed-bed reactor configured to hold an adsorption particles by use of a magnetic unit, the adsorption particles each including a base material containing magnetite, the adsorption particles configured to adsorb oil included in to-be-treated water; a pretreatment apparatus configured to recover the oil from the adsorption particles sent from the oil removal apparatus; and a thermal energy generating apparatus configured to obtain thermal energy from the oil recovered by the pretreatment apparatus. | 03-11-2010 |
| 20100059448 | MAGNETIC PARTICLES FOR WATER PURIFICATION AND WATER TREATMENT METHOD EMPLOYING THE SAME - The present invention provides a water treatment composition capable of effectively adsorbing pollutants in water treatment. The composition can be rapidly separated by use of magnetic force, and hence is excellent in workability. The composition comprises magnetic particles for water purification, and is suitably used in water treatment for removing oils and the like in water. The magnetic particles are prepared by subjecting magnetic powder to surface treatment with a particular organometallic compound. The organometallic compound comprises a metal atom connected to an alkoxy group and an amphipathic organic group. | 03-11-2010 |
| 20100072140 | WATER PURIFICATION MATERIAL AND WATER PURIFICATION METHOD EMPLOYING THE SAME - The present invention provides a water purification material capable of selectively adsorbing phosphorus dissolved in wastewater, and also provides a water purification method employing the material. The water purification material comprises a composite metal hydroxide containing iron ions and calcium ions in its structure, and this composite metal hydroxide has a layered structure. In the water purification method of the present invention, the water purification material is brought into contact with wastewater so as to remove and recover phosphate ions in the wastewater. | 03-25-2010 |
| 20100224566 | ADSORBENT, METHOD FOR RECOVERING AN ORGANIC MATTER AND METHOD FOR RECOVERING AN OIL - An adsorbent includes: at least one of an inorganic particle and a metallic particle as a core; at least two kinds of polymers, which cover a surface of the core, with respective different surface tensions; and a convex-concave surface structure formed due to a difference in surface tension between the at least two kinds of polymers. | 09-09-2010 |
| 20100230332 | ADSORPTION APPARATUS FOR WASTEWATER - An adsorption apparatus for wastewater, having a reaction tank configured to allow adsorption of a resource substance contained in wastewater on an adsorbent to be carried out therein, a supplying device configured to supply wastewater containing the resource substance to the reaction tank, a charging device configured to charge the adsorbent into the reaction tank, a water discharging device configured to discharge a treated water, obtained after the wastewater is removed of the resource substance by the adsorption, from the reaction tank, a adsorbent discharging device configured to discharge the adsorbent having the resource substance adsorbed thereon, from the reaction tank, and an adsorbent flow out preventing device configured to prevent flow out of the adsorbent from the reaction tank during the adsorption. | 09-16-2010 |
| 20100230343 | WATER TREATMENT APPARATUS - A water treatment apparatus includes a first treatment tank forming thereon a first, fixed bed includes a powdery phosphorus adsorbent includes an inorganic layered compound, wherein the first bed separates phosphorus and solid matter from the water, and recovers the phosphorus in a state adsorbed on the phosphorus adsorbent in the first bed, a second treatment tank forming a second, fluidized or fixed bed includes the phosphorus adsorbent, wherein the second bed separates phosphorus from the water received from the first treatment tank, and recovers the phosphorus in a state adsorbed on the phosphorus adsorbent in the second bed, and a transferring line configured to transfer the phosphorus adsorbent, having phosphorus adsorbed thereon in the second treatment tank, from the second treatment tank to the first treatment tank. | 09-16-2010 |
| 20100230358 | OIL ADSORBENT, AND METHOD FOR RECOVERING THE SAME - An oil adsorbent includes a plurality of particles, each being constituted from at least one of an inorganic particle and an organic particle as a core and a polymer covering the core. The plurality of particles are aggregated to form an aggregate so that a porosity of the aggregate is 70% or more. | 09-16-2010 |
| 20100261266 | BIOLOGICAL DESULFURIZATION APPARATUS - Disclosed is a biological desulfurization apparatus including a reaction tower | 10-14-2010 |
| 20100300948 | WATER TREATMENT EQUIPMENT - According to one embodiment, water to be treated is passed through each of a first reactor vessel and second reactor vessel, phosphorus contained in the water is removed by using an adsorbent, thereafter the liquid held in each of the reactor vessels is discharged from each of a first treated water discharge path and second treated water discharge path, and thus the influence of soluble impurities derived from the water is eliminated. Further, when suspended solids impurities contained in the water are accumulated in the phosphorus adsorbent, the accumulated impurities are eliminated by a reverse cleaning operation using a liquid to be thereafter introduced from a reactor vessel liquid introduction path into the reactor vessel, and hence the influence of the suspended solids in the water on a desorption agent liquid to be thereafter introduced into a crystallization vessel, and containing phosphorus from the phosphorus adsorbent is eliminated. | 12-02-2010 |
| 20100300949 | WATER TREATMENT EQUIPMENT - According to one embodiment, in order to eliminate impurities, and the like, water to be treated is passed through each of reactor vessels, phosphorus contained in the water to be treated is removed by using an adsorbent, and thereafter the liquid held in each of the reactor vessels is discharged through each of first to third treated water discharge paths, thereby eliminating the impurities, and the like derived from the water to be treated. It is possible to eliminate the influence of the impurities in the water to be treated on the discharged desorption agent liquid containing phosphorus from the phosphorus adsorbent can be eliminated, and hence it is possible to obtain a phosphorus-containing liquid containing no substance other than the recovered phosphoric matter material. | 12-02-2010 |
| 20110056878 | MEMBRANE FILTRATION SYSTEM - According to one embodiment, a membrane filtration system includes a raw water tank, a first tank, a second tank, a nanofiltration membrane module comprises a nanofiltration membrane, and removes the solute from the raw water with a solute removal rate of 1% to 30%, a first pump for supplying the raw water from the raw water tank to the module to cause the raw water to permeate through the membrane and send the water that has permeated through the membrane as a primary water to the first tank, a RO module comprises a RO membrane that further removes the solute from the primary water, and a second pump for supplying the primary water from the first tank to the RO module to cause the primary water to permeate through the membrane and send the water that has permeated through the membrane as a secondary water to the second tank. | 03-10-2011 |
| 20110056885 | VALUABLE RESOURCE RECOVERY SYSTEM AND OPERATION METHOD THEREOF - A valuable resource recovery system includes an engineered powder supply unit that supplies an engineered powder into drainage water (the engineered powder can adsorb a valuable resource and can be desorbed from the engineered powder), an agitation unit that agitates the drainage water supplied with the engineered powder, an engineered powder separation unit that separates the engineered powder from the drainage water agitated by the agitation unit, an engineered powder collection unit that collects the engineered powder separated by the engineered powder separation unit, and a desorption-recycle unit that desorbs the valuable resource from the engineered powder collected by the engineered powder collection unit to recycle the engineered powder and the valuable resource. According to the system, the valuable resource can be desorbed from the engineered powder and then recycled. | 03-10-2011 |
