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91. 发明专利

JPS5680398A SLUDGE DEHYDRATING DEVICE 失效
公开(公告)号：JPS5680398A
公开(公告)日：1981-07-01
申请号：JP15634379
申请日：1979-12-04
申请人： KURITA INDUSTRIAL CO LTD
发明人： TAKEUCHI TADAO , ISHII YASUHIKO
IPC分类号： B01D33/04 , B30B9/20 , B30B9/24
摘要： PURPOSE:To facilitate an easy dehydration of the sludge, by holding the sludge in a polymerization dehydrating section of a pair of travelling filter cloth belts having an endless circulating movement each and at the same time providing a high-pressure dehydrating part at the terminal of the dehydrating section. CONSTITUTION:A pair of filter cloth belts 1a and 1b having an endless circulating movement are made to travel in the polymerized state and from the front point A to the point B of the sludge supply position 2. The tension is controlled for the belts 1a and 1b each by means of the tension control roller T and the zigzag movement control roller T', and the dehydrating/driving roller D performs the driving of these belts. Thus the sludge is supplied by the sludge supply device 2, and the water receriver 2' is provided for an automatic dehydration up to the point A. The belts 1a and 1b holding the sludge between advance in a zigzag line and around the roller group 3 to perform the dehydration with the surface pressure. The high-pressure generating means consisting of the return roller 4 and the high-pressure roller 5 is installed at the termianl of the polymerization dehydrating section. Thus the high pressure is applied to the sludge at the 1st and 2nd bands I and II to improve the dehydration performance.

92. 发明专利

JPS5667519A DEHYDRATOR OF ORGANIC SLUDGE 失效
公开(公告)号：JPS5667519A
公开(公告)日：1981-06-06
申请号：JP14276279
申请日：1979-11-06
申请人： KURITA INDUSTRIAL CO LTD
发明人： HIROTA MORIYUKI , SAWADA SHIGEKI
IPC分类号： B01D35/06
摘要： PURPOSE:To obtain dehydrated sludge of low moisture contents at high capacity by providing pressure electroosmotic dehydrating parts in multiple steps to an apparatus which continuously dehydrates org. sludge through electroosmosis action. CONSTITUTION:A conductive material is provided to the outside circumferential part of at least one pressure roll 3' of the pressure dehydrating part and is also used as one electrode of either anode or cathode. Sludge is held between the main driven belts 1a, 1b in direct contact with this pressure roll 3' serving also as an electrode so that the belts advance around the roll 3' while dehydrating the sludge. Namely, electroosmosis action is effected between the roll 3' and electrode belt 6, whereby pressure dehydration and electroosmotic dehydration are accomplished simultaneously in this section. The electrode belt 6 is put on the roll 3' and the front and rear rolls 3a, 3b disposed in the upper right and left parts thereof in the form of OMEGA, and forms a long pressure and electroosmotic dehydration section 7 covering nearly the entire circumference of the roll 3', and this provides dehydrated sludge at high capacity.

93. 发明专利

JPS5650104A TREATMENT OF WATER CONTAINING PHOSPHATE 失效
公开(公告)号：JPS5650104A
公开(公告)日：1981-05-07
申请号：JP11791079
申请日：1979-09-17
申请人： KURITA INDUSTRIAL CO LTD
发明人： JIYOUKOU ISAO , KOIZUMI MOTOMU , ABE OSAMU
IPC分类号： C02F1/58 , B01D9/02 , C01B25/32
摘要： PURPOSE:To efficiently crystallize phosphate in water by adding calcium carbonate seed crystals when the phosphate in removed by contact with calcium phosphate- contg. seed crystals in the presence of Ca ion. CONSTITUTION:Calcium carbonate particles or slaked lime contg. calcium carbonate fine crystals deposited by contact with air is used as calcium carbonate seed crystals. A calcium agent such as calcium chloride and/or an alkali agent such as sodium hydroxide is added to phosphate-contg. water to prepare conditions (

94. 发明专利

JPS5626583A DISPOSAL METHOD FOR WATER CONTAINING PHOSPHATE 失效
公开(公告)号：JPS5626583A
公开(公告)日：1981-03-14
申请号：JP10280279
申请日：1979-08-14
申请人： KURITA INDUSTRIAL CO LTD
发明人： JIYOUKOU ISAO , KOIZUMI MOTOMU
IPC分类号： C02F1/28 , C02F1/58
摘要： PURPOSE:To remove phosphates efficiently, by a method wherein water containing the phosphates causing eutrophication and crystal seeds containing calcium phosphate are contacted in the presence of a chlorine agent. CONSTITUTION:Crystal seeds (particularly, phosphate rock) containing calcium phosphate, such as hydroxyapatite or fluoroapatite, and water containing phosphates are contacted in the presence of a chlorine agent (for example, chlorine gas, bleaching powder), phosphate ions are crystallized onto the crystal seeds in a form of calcium phosphate, and the phosphates are removed. Because of the presence of said chlorine agent, the lowering of the activity of the crystal seeds is prevented and especially the phosphates can efficiently be removed even when crystal seeds having low removing performance, are used.

95. 发明专利

JPS567696A SLUDGE DEHYDRATING AGENT 失效
公开(公告)号：JPS567696A
公开(公告)日：1981-01-26
申请号：JP8131379
申请日：1979-06-29
申请人： KURITA INDUSTRIAL CO LTD
发明人： OGAWA ASAO
IPC分类号： C02F11/00 , C02F11/14
摘要： PURPOSE:To effectively deodorize and dehydrate org. sludge by blending an oily deodorant and a surfactant into a powdered polymer flocculant to uniformly mix the flocculant with the deodorant and using the blend as dehydrating agent for the sludge. CONSTITUTION:An oily deodorant such as camphor or menthol and a nonionic surfactant such as polyoxyethylenealkyl either or a cationic surfactant such as as alkyldimethylbenzeneammonium chloride are bended into a cationic polymer flocculant such as quaternization product of an N-dialkylaminoalkyl acrylate homopolymer, and this blend is used to dehydrate org. sludge of sewage, night soil or the like. When the sludge is converted into flocks by flocculation, the deodorant is well adsorbed on the solid component of the sludge, and dehydration and deodorization are performed simultaneously and effectively.

96. 发明专利

JPS55157389A TREATMENT OF WASTE WATER FROM REFUSE COMBUSTION FACILITY 失效
公开(公告)号：JPS55157389A
公开(公告)日：1980-12-08
申请号：JP6493779
申请日：1979-05-28
申请人： KURITA INDUSTRIAL CO LTD
发明人： SHIRASAWA HIROSHI
IPC分类号： C02F1/44 , B01D1/04 , C02F1/04 , C02F1/28 , C02F1/42 , C02F9/00
摘要： PURPOSE:To efficiently and nearly completely remove heavy metals and salts using a small-scale equipment and a simple operation by a method wherein waste water from a refuse combustion facility is treated with evaporation and separation, the obtained vapor is treated with reverse osmosis membrane to provide concentrated mercury water, which is treated with a chelate-type ion-exchange resin. CONSTITUTION:Waste water from trash combustion facilities is stored in a tank 3 and then is supplied to an evaporator unit 5. The evaporator 5 is used for evaporating separation process where the waste water is separated into vapor and concentrated liquid. In this process, a considerable amount of mercury in the waste water is transferred to vapor phase. The vapor is guided from vapor tube 9 into a condenser 10 and condensed by cooling in a cooling tower 11, whereby mercury is transferred to the condensed water phase. The condensed water passes through a filter 13 and is guided to a reverse osmosis membrane separator 15, where only solvent water is passed through, and mercury and other solute remain and become concentrated water, which is introduced into an ion-exchange tank 18. There, mercury is adsorbed and removed from concentrated water by chelate-type ion-exchange resin. In this manner, concentrated water from which mercury is removed exits the chelate resin bed and is circulated via connecting pipe 20 into the raw water tank 3.

97. 发明专利

JPS55142593A PREVENTING METHOD FOR SCUM GENERATION 失效
公开(公告)号：JPS55142593A
公开(公告)日：1980-11-07
申请号：JP5217979
申请日：1979-04-26
申请人： KURITA INDUSTRIAL CO LTD
发明人： YASUKAWA KATSUO , MORI HAJIME
IPC分类号： C02F3/12
摘要： PURPOSE:To prevent the scum generation in a precipitation tank by adding a pH adjusting agent to a waste water after treated by activated sludge. CONSTITUTION:In a stage wherein water to the treated is subjected to the activated sludge treatment and separated into a solid and a liquid component in a precipitation tank, by adding a pH adjusting agent to a mixed liquid flowed into a precipitation tank, the scum generation is prevented. As a pH adjusting agent, hydrogen chloride, sulfuric acid, citric acid, sodium hydroxide, incinerator ash or the like are used. Therefore, the deterioration of water quality by scum is prevented and a mechanical means for removing scum can be eliminated.

98. 发明专利

JPS55126523A ACTIVATED CARBON REGENERATING APPARATUS 失效
公开(公告)号：JPS55126523A
公开(公告)日：1980-09-30
申请号：JP3223079
申请日：1979-03-22
申请人： KURITA INDUSTRIAL CO LTD
发明人： GOTOU CHIYUUICHI , HAYAMA ZENZOU
IPC分类号： B01J8/44 , B01J20/34 , C01B31/08
摘要： PURPOSE:To maintain a well-fluidized state of activated carbon for regeneration in a fluidized bed system activated carbon regenerating apparstus by constructing a flow regulation packed layer for introducing a hot gas into the regeneration chamber so that grains in an upper layer portion are bound like a millet-and-rice cake having gas permeability. CONSTITUTION:A hot gas produced in combustion chamber 4 is introduced into regeneration chamber 6 through flow regulation packed layer 5 to heat regenerate waste activated carbon charged into chamber 6 from supply inlet 8 while fluidizing the carbon. In this apparatus gas permeable refractory support bed 13 is set in a lower end portion of right cylindrical opening 12 made in wall 11, refractory grains are packed on bed 13 up to the top of opening 12, and grains in upper layer portion 14 are bound like a millet-and-rice cake having gas permeability to form layer 5. The thickness of portion 14 is adjusted to about 50-150mm.

99. 发明专利

JPS55104691A DETOXICATION OF CATHIONIC COAGULANT 失效
公开(公告)号：JPS55104691A
公开(公告)日：1980-08-11
申请号：JP13534679
申请日：1979-10-22
申请人： KURITA INDUSTRIAL CO LTD
发明人： SUCHIYUWAATO ENU POORU , JIYON II UOORAA , JIEEMUSU II KEAANZU
IPC分类号： C02F1/52 , C02F1/54 , C02F1/58
摘要： PURPOSE:To lessen toxicity of cationic coagulant by adding an anionic polymer or an organic acid salt to water to be treated by a cationic coagulant produced in mining operations. CONSTITUTION:An anionic polymer [e.g., sodium poly(metha)acrylate], an organic acid salt (e.g., the isopropylamine salt of alkylbenzenesulfonic acid, sodium lignosulfonate, dioctyl sodium sulfosuccinate, etc.), or mixture of these is added to water produced by the treatment of red water with a cationic coagulant. By this method, the treatment of treated water containing 0.1-1000ppm of residual cationic coagulant can be made possible.

100. 发明专利

JPS55104530A OPERATING METHOD OF GASSTURBINE 失效
公开(公告)号：JPS55104530A
公开(公告)日：1980-08-11
申请号：JP966579
申请日：1979-02-01
申请人： KURITA INDUSTRIAL CO LTD
发明人： KUBO SOTOO , YASHIRO TAKEKI , TAKAHASHI TOMOYUKI , UEKI HIROSHI
IPC分类号： F01D25/00 , F01K25/14 , F02C7/052 , F02C7/30
摘要： PURPOSE:To prevent turbine blades from attaching of dust when a turbine is driven by waste gas, by operating the turbine while cleaning the turbine with water admixed with a scale-preventive agent. CONSTITUTION:After waste gas discharged from blast furnace 1 is removed of dust by dust catcher 2 by way of dry type dust collecting method, it is further removed of dust in the first-stage scrubber 3 by way of wet type dust collecting method. Then, waste gas is supplied to gas turbine 5 via duct 4 for rotating turbine blades. Exhaust gas of gas turbine 5 is discharged to the outside via duct 6 and silencer 7, after dust contained therein is removed in the second-stage scrubber 8 by way of wet type dust collecting method. On the other hand, supernatant water in thickener 10 is taken out via pipe 11 to gas turbine 5 for cleaning gas turbine 5 while admixing a scale-preventive agent from tank 12 by means of pump 13. After cleaning of turbine 5, dust-containing cleaning water is carried via pipe 14 to thickener 10 for separation of liquid and solid.

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