Patents by Inventor Kazumi Chujo
Kazumi Chujo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7294268Abstract: This metal containing waste water treatment method introduces a metal containing waste water from above into a submerged membrane separation tank 1 in which a reaction section 2, a submerged membrane section 3 having a submerged membrane 5 and a precipitation section 4 are arranged in order from top to bottom, causes a reaction by adding a pH adjuster to the reaction section 2, subsequently separates water from metal by the submerged membrane 5 of the submerged membrane section 3 and subsequently precipitates and concentrates the metal in the precipitation section 4. As described above, according to this treatment method, the pH adjuster is added to the reaction section 2, and therefore, solid-liquid separation can be effected by the submerged membrane 5 with a hydroxide formed. Moreover, the metal can be precipitated and concentrated by the action of gravity without using energy in the precipitation section 4.Type: GrantFiled: April 15, 2004Date of Patent: November 13, 2007Assignee: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo, Hiroyuki Ishibashi
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Patent number: 6896800Abstract: This metal containing waste water treatment method introduces a metal containing waste water from above into a submerged membrane separation tank 1 in which a reaction section 2, a submerged membrane section 3 having a submerged membrane 5 and a precipitation section 4 are arranged in order from top to bottom, causes a reaction by adding a pH adjuster to the reaction section 2, subsequently separates water from metal by the submerged membrane 5 of the submerged membrane section 3 and subsequently precipitates and concentrates the metal in the precipitation section 4. As described above, according to this treatment method, the pH adjuster is added to the reaction section 2, and therefore, solid-liquid separation can be effected by the submerged membrane 5 with a hydroxide formed. Moreover, the metal can be precipitated and concentrated by the action of gravity without using energy in the precipitation section 4.Type: GrantFiled: April 29, 2002Date of Patent: May 24, 2005Assignee: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo, Hiroyuki Ishibashi
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Patent number: 6824684Abstract: According to this wastewater treatment apparatus, wastewater can be treated by novel action by a foaming tank 7 in comparison with a treatment method solely using a biological treatment tank 1 constituting an aeration tank. That is, wastewater can be treated by action achieved by combining (1) action solely of a biological treatment tank 1 and (2) action of a foaming tank 7. Specific action in this foaming tank 7 includes supply of dissolved oxygen to wastewater and oxidation by bubbled air (micro air) under a favorable condition with a shallow water depth. According to this wastewater treatment apparatus, energy to be consumed can be saved and toxic chemical substances such as dimethylformamide as a toxic chemical substance can be completely decomposed by unlimited microorganisms.Type: GrantFiled: November 5, 2002Date of Patent: November 30, 2004Assignee: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo
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Publication number: 20040188348Abstract: This metal containing waste water treatment method introduces a metal containing waste water from above into a submerged membrane separation tank 1 in which a reaction section 2, a submerged membrane section 3 having a submerged membrane 5 and a precipitation section 4 are arranged in order from top to bottom, causes a reaction by adding a pH adjuster to the reaction section 2, subsequently separates water from metal by the submerged membrane 5 of the submerged membrane section 3 and subsequently precipitates and concentrates the metal in the precipitation section 4. As described above, according to this treatment method, the pH adjuster is added to the reaction section 2, and therefore, solid-liquid separation can be effected by the submerged membrane 5 with a hydroxide formed. Moreover, the metal can be precipitated and concentrated by the action of gravity without using energy in the precipitation section 4.Type: ApplicationFiled: April 15, 2004Publication date: September 30, 2004Applicant: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo, Hiroyuki Ishibashi
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Patent number: 6776903Abstract: In this waste-water treatment system, solids suspended in waste water are attached to a radial ring-shaped thread structure 6 filled in an attachment filter tank 2. Then, particle sizes are increased and the attached solids are further made to be anaerobic, digested and reduced. Then, sludge generated from the suspended solids is sedimented, separated and removed in a sedimentation section 3 in the same attachment filter tank 2. In this waste-water treatment system, solids suspended in waste water can be filtered without consuming a large amount of electrical energy. Thus, energy can be saved and waste can be reduced.Type: GrantFiled: September 20, 2001Date of Patent: August 17, 2004Assignee: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo
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Patent number: 6743353Abstract: In this neutralizing apparatus, aerobic microorganisms are propagated on a vinylidene chloride packing material 10 provided in a neutralization tank 3. The aerobic microorganisms produce nitric acid ions from organic alkaline wastewater introduced from a raw water tank 1 and thereby the organic alkaline wastewater is neutralized. Thus, various kinds of alkaline wastewater can be neutralized without using a mineral acid as a poison such as hydrochloric acid or the like.Type: GrantFiled: August 14, 2001Date of Patent: June 1, 2004Assignee: Sharp Kabushiki KasishaInventors: Kazuyuki Yamasaki, Kazumi Chujo
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Patent number: 6572771Abstract: An apparatus for treatment of fluorine waste water has an introduction tank, a main treatment tank, a calcium hydroxide tank, a polychlorinated aluminum tank, a macromolecular flocculant tank, a settling tank, and a concentration tank. Fluorine waste water is introduced through the introduction tank into a lower part of the main treatment tank through a lower inlet pipe. Also, return sludge from the concentration tank and silicon sludge from a silicon waste water treatment system are introduced into an upper part of the main treatment tank. Thus, silicon recovered from silicon waste water is recycled for treatment of fluorine waste water. Also, unreacted chemicals, which have been loaded in the calcium hydroxide tank, polychlorinated aluminum tank, macromolecular flocculant tank, are recycled. The main treatment tank has no stirrer, and thus conserves electrical energy, but can neutralize the waste water.Type: GrantFiled: June 4, 2002Date of Patent: June 3, 2003Assignee: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo, Seiji Okamoto, Yukihiro Tao
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Publication number: 20030085172Abstract: According to this wastewater treatment apparatus, wastewater can be treated by novel action by a foaming tank 7 in comparison with a treatment method solely using a biological treatment tank 1 constituting an aeration tank. That is, wastewater can be treated by action achieved by combining (1) action solely of a biological treatment tank 1 and (2) action of a foaming tank 7. Specific action in this foaming tank 7 includes supply of dissolved oxygen to wastewater and oxidation by bubbled air (micro air) under a favorable condition with a shallow water depth. According to this wastewater treatment apparatus, energy to be consumed can be saved and toxic chemical substances such as dimethylformamide as a toxic chemical substance can be completely decomposed by unlimited microorganisms.Type: ApplicationFiled: November 5, 2002Publication date: May 8, 2003Inventors: Kazuyuki Yamasaki, Kazumi Chujo
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Publication number: 20020158014Abstract: This metal containing waste water treatment method introduces a metal containing waste water from above into a submerged membrane separation tank 1 in which a reaction section 2, a submerged membrane section 3 having a submerged membrane 5 and a precipitation section 4 are arranged in order from top to bottom, causes a reaction by adding a pH adjuster to the reaction section 2, subsequently separates water from metal by the submerged membrane 5 of the submerged membrane section 3 and subsequently precipitates and concentrates the metal in the precipitation section 4. As described above, according to this treatment method, the pH adjuster is added to the reaction section 2, and therefore, solid-liquid separation can be effected by the submerged membrane 5 with a hydroxide formed. Moreover, the metal can be precipitated and concentrated by the action of gravity without using energy in the precipitation section 4.Type: ApplicationFiled: April 29, 2002Publication date: October 31, 2002Inventors: Kazuyuki Yamasaki, Kazumi Chujo, Hiroyuki Ishibashi
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Publication number: 20020144940Abstract: An apparatus for treatment of fluorine waste water has an introduction tank, a main treatment tank, a calcium hydroxide tank, a polychlorinated aluminum tank, a macromolecular flocculant tank, a settling tank, and a concentration tank. Fluorine waste water is introduced through the introduction tank into a lower part of the main treatment tank. Also, return sludge from the concentration tank and silicon sludge from a silicon waste water treatment system are introduced into an upper part of the main treatment tank. Thus, silicon recovered from silicon waste water is recycled for treatment of fluorine waste water. Also, unreacted chemicals, which have been loaded in the calcium hydroxide tank, polychlorinated aluminum tank, macromolecular flocculant tank, are recycled. The main treatment tank has no stirrer, but can neutralize the waster water.Type: ApplicationFiled: June 4, 2002Publication date: October 10, 2002Applicant: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo, Seiji Okamoto, Yukihiro Tao
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Publication number: 20020100730Abstract: In this waste-water treatment system, solids suspended in waste water are attached to a radial ring-shaped thread structure 6 filled in an attachment filter tank 2. Then, particle sizes are increased and the attached solids are further made to be anaerobic, digested and reduced. Then, sludge generated from the suspended solids is sedimented, separated and removed in a sedimentation section 3 in the same attachment filter tank 2. In this waste-water treatment system, solids suspended in waste water can be filtered without consuming a large amount of electrical energy. Thus, energy can be saved and waste can be reduced.Type: ApplicationFiled: September 20, 2001Publication date: August 1, 2002Inventors: Kazuyuki Yamasaki, Kazumi Chujo
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Publication number: 20020084219Abstract: In this neutralizing apparatus, aerobic microorganisms are propagated on a vinylidene chloride packing material 10 provided in a neutralization tank 3. The aerobic microorganisms produce nitric acid ions from organic alkaline wastewater introduced from a raw water tank 1 and thereby the organic alkaline wastewater is neutralized. Thus, various kinds of alkaline wastewater can be neutralized without using a mineral acid as a poison such as hydrochloric acid or the like.Type: ApplicationFiled: August 14, 2001Publication date: July 4, 2002Inventors: Kazuyuki Yamasaki, Kazumi Chujo
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Patent number: 6413417Abstract: An apparatus for treatment of fluorine waste water has an introduction tank, a main treatment tank, a calcium hydroxide tank, a polychlorinated aluminum tank, a macromolecular flocculant tank, a settling tank, and a concentration tank. Fluorine waste water is introduced from the introduction tank into a lower part of the main treatment tank through a lower inlet pipe. Also, return sludge from the concentration tank and silicon sludge from a silicon waste water treatment system are introduced into an upper part of the main treatment tank. Thus, silicon recovered from silicon waste water is recycled for treatment of fluorine waste water. Also, unreacted chemicals, which have been loaded in the calcium hydroxide tank, polychlorinated aluminum tank, macromolecular flocculant tank, are recycled. The main treatment tank has no stirrer and thus conserves electrical energy, but can still neutralize the waste water.Type: GrantFiled: January 28, 2000Date of Patent: July 2, 2002Assignee: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Kazumi Chujo, Seiji Okamoto, Yukihiro Tao
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Patent number: 6344142Abstract: In a waste water treatment apparatus, sludge settled in a settling tank is treated by being introduced (returned) into a return sludge reaction tank having a settling section in its rear portion. Therefore, unreacted chemicals contained in the sludge that has settled in the settling tank can be utilized in the return sludge reaction tank. Therefore, the unreacted chemicals are not discharged as sludge. Accordingly, as compared with the conventional treatment method of discharging a sludge from the settling tank, it is possible to reduce the amount of generated sludge remarkably and consequently, reduce a sludge disposal fee, the use amount of slaked lime, and a running cost such as maintenance cost of a dehydrator.Type: GrantFiled: May 4, 2000Date of Patent: February 5, 2002Assignee: Sharp Kabushiki KaishaInventors: Kazuyuki Yamasaki, Norio Sawai, Kazumi Chujo