专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

JPS57122789A Method of controlling the concentration of dissolved oxygen 失效
标题翻译：控制溶解氧的浓度的方法
公开(公告)号：JPS57122789A
公开(公告)日：1982-07-30
申请号：JP633281
申请日：1981-01-21
申请人： Hitachi Ltd
发明人： SHIMIZU NORIO , YAMAGUCHI TETSUO , SAITOU SETSUO , UENO MASAO , OTAHARA YOUJI
IPC分类号： C02F3/12 , C12M1/36 , C12N1/00
CPC分类号： Y02W10/15
摘要： PURPOSE: In the aerobic cultivation of a microorganism, the oxygen dissolved in the culture mixture is properly controlled through three stage operations, namely the control of the rotation of the stirrer in the first stage, of the oxygen partial pressure of the aeration gas in the second and of the aeration rate in the third.
CONSTITUTION: A germ seed is charged into the cultivation tank 1 and the substrate is fed from the tank 2 through pump 8 to the tank 1. At this time, signals from the D0 sensor 9, the oxygen partial pressure meter 5 and the aeration rate meter 6 are processed in the control computer 4 and another signal is sent to the oxygen separator 3, the stirrer 2 or the pressure controller 11 in accordance with the control programs to control the stirrer rotation, the oxygen partial pressure in the aeration gas or the aeration rate. Thus, when D0 in the culture mixture is lowered, the rotation of the stirrer is increased as the first stage, when the D0 comes to the upper limit of set value, the oxygen partial pressure in the aeration gas is raised as the second stage, and further, when coming to the next upper limit, the aeration rate is increased as the third stage.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：在微生物的好氧培养中，溶解在培养混合物中的氧通过三步操作（即控制第一阶段搅拌器旋转的控制）适当地控制曝气气体的氧分压第二和曝气率在第三。构成：将种子种子装入培养槽1中，将基质从罐2通过泵8送入罐1.此时，来自D0传感器9，氧气分压计5和通气量的信号仪表6在控制计算机4中处理，并且根据控制程序将另一个信号发送到氧气分离器3，搅拌器2或压力控制器11，以控制搅拌器旋转，曝气气体中的氧分压或曝气率因此，当培养混合物中的D0降低时，搅拌器的旋转作为第一阶段增加，当D0达到设定值的上限时，曝气气体中的氧分压作为第二阶段升高，此外，当达到下一个上限时，曝气速率作为第三阶段增加。

82. 发明专利

JPS5791200A METHOD OF CONTROLLING THE CULTIVATION OF MICROORGANISM 失效
公开(公告)号：JPS5791200A
公开(公告)日：1982-06-07
申请号：JP16524080
申请日：1980-11-26
申请人： HITACHI LTD
发明人： SHIMIZU NORIO , YAMAGUCHI TETSUO , SAITOU SETSUO , UENO MASAO , OTAHARA YOUJI
IPC分类号： C12M1/36 , C12N1/00 , C12Q3/00
摘要： PURPOSE:The partial pressure of carbon dioxide and the concentration of dissolved oxygen are controlled by a combination of the air-flow rate and oxygen concentration of the oxygen-enriched gas and the number of the stirrer rotation to increase the yield of the cultivated product. CONSTITUTION:Seed cells are charged in the cultivation tank 1 and the substrate is fed from the tank 5 into the cultivation tank by pump 6. At this time, the signals from the dissolved oxygen sensor 11, carbon dioxide partial pressure measuring instrument and the air-flow meter 8 are processed with the electronic computer 4 and signals are sent to the oxygen separator 3, stirrer 2 and pressure regulator 10 in accordance with the control program to control the air-flow rate, pressure in the tank and number of stirrer rotation or oxygen concentration in the introduced gas. For example, when bread yeast is cultured, the partial pressure of carbon dioxide and the dissolved oxygen are kept at less than 0.2 atmospheric pressure and 0.2-5ppm respectively.

83. 发明专利

JPS56116701A PRETREATMENT OF CELLULOSIC MATERIAL 失效
公开(公告)号：JPS56116701A
公开(公告)日：1981-09-12
申请号：JP1983080
申请日：1980-02-21
申请人： HITACHI LTD
发明人： ISHIBASHI HITOSHI , ISHIDA MASAHIKO , OTAHARA YOUJI
IPC分类号： C08B1/00 , C12P19/14
摘要： PURPOSE:To enhance decomposability by efficient pretreatment, by bringing a water-contg. cellulosic material into contact with ozone in the biologycal decomposition of a cellulosic material. CONSTITUTION:Raw materials 5 for a water-contg. cellulosic material supplied from feed tank 4 is brought into countercurrent contact with ozone or a mixt. with another gas supplied through gas-blowing aperture 2 in ozone reactor 1. The raw material 5 is reacted with the ozone by said contact, causing decomposition of lignin in the raw material 5 and desturction of the crystal structure of cellulose. The raw material 5, which went down in a form of travelling belt 3 and was reacted with the rising ozone by said contact, is drawn by discharge feeder 6, and the ozone produced in ozone generator 7, is consumed in the reactor 1 and discharged out of the system.

84. 发明专利

JPS5692783A REMOVAL OF CARBON DIOXIDE GAS IN CULTURE BATH 失效
公开(公告)号：JPS5692783A
公开(公告)日：1981-07-27
申请号：JP16832479
申请日：1979-12-26
申请人： HITACHI LTD
发明人： YAMAGUCHI TETSUO , SAITOU SETSUO , SHIMIZU NORIO , UENO MASAO , OTAHARA YOUJI
IPC分类号： C12N1/00
摘要： PURPOSE:To separate and remove carbon dioxide gas in a culture bath continuously and securely, by blowing a gas into a culture solution, separating mixed fluid of liquid and the gas blended with a remaining gas into liquid and gas, removing carbon dioxide gas, and returning the regenerated culture solution to the culture bath. CONSTITUTION:Sterilized air is continuously blown to the bottom of the foam column 2 equipped on the outside of the culture bath 1, so that the density of a mixed fluid of liquid and a gas in the foam column is made smaller than that of a mixed fluid of liquid and a gas in the culture bath. Consequently, the culture solution enters through the racking pipe 11 to the the foam column 2, and rises in the foam column 2. Carbon dioxide gas in the culture solution transfers to air during the movement of the culture solution. The mixed fluid of liquid and a gas in introduced into the gas separating bath 3, and carbon dioxide is separated and discharged from the exhaust pipe 14 to out of the system. While the culture solution with carbon dioxide removed is returned from the return pipe 15 set at the bottom of the gas separating bath 3 to the interior of the culture bath 1 by the head difference between the inner liquid in the culture bath 1 and the separating bath 3.

85. 发明专利

JPS55157382A REDUCING METHOD FOR ACTIVE SLUDGE GENERATION QUANTITY 失效
公开(公告)号：JPS55157382A
公开(公告)日：1980-12-08
申请号：JP6560179
申请日：1979-05-29
申请人： HITACHI LTD
发明人： SHIMIZU NORIO , OTAHARA YOUJI , MAZAKI YASUNORI , MIYAZAKI KAZUO , SUGIMOTO KUNJI
IPC分类号： C02F3/12
摘要： PURPOSE:To reduce the produced quantity of surplus sludge through efficient performance of waste water clarification and self-digestion of active sludge by a method wherein waste water treated in the first aeration tank is guided into the second aeration tank where aeration is conducted to digest biological solid in active sludge. CONSTITUTION:Waste water 13 contg. soluble organic material is guided, together with returned active sludge 27, into the first aeration tank 16 where aeration is performed to reach a 90% or more soluble BOD removal ratio. Then, treated waste water 19 contg. active sludge is introduced into the second aeration tank 20, where aeration is conducted until the active sludge concentration becomes lower at the outlet of the second aeration tank than at its inlet, which means sufficient digestion of biological solid in the sludge. Then, the water is guided into a settling tank 24 and solid and liquid are separated.

86. 发明专利

JPS55134618A CONCENTRATING DEVICE FOR SLUDGE POLLUTED WITH MICROBE 失效
公开(公告)号：JPS55134618A
公开(公告)日：1980-10-20
申请号：JP4092979
申请日：1979-04-06
申请人： HITACHI LTD
发明人： HAGA RIYOUICHI , ISHIDA MASAHIKO , OTAHARA YOUJI
IPC分类号： C02F3/08 , B01D33/17 , B01D33/21 , C02F11/12
摘要： PURPOSE:To concentrate sludge polluted with microbes by a simple mechanism, efficiency and at low cost by a method wherein a porous material with elasticity and a water absorbing property, which has continuous bubbles, is used at a filtration tank. CONSTITUTION:A disc body 1, whose lower portion is immersed in sludge slurry 8 polluted with microbes and which rotates, sucks moisture in the slurry into a filtration layer 2 by means of a capillary phenomenon of the filtration layer 2 during immersion, and concentrated sludge is attached on the surface of the filtration tank 2. The disc body 1 is further revolved, a portion sticking the concentrated sludge is pulled out on the surface of a slurry liquid, moisture is absorbed to the filtration tank 2 from the concentrated sludge during the time when the disc body is turned and moved, and the concentrated sludge is continuously dehydrated. The concentrated sludge dehydrated as mentioned above is scraped off by means of a scraper 4 contacting with the disc body 1, falls and is discharged outside the system by means of the discharge channel 4. The filtration tank 2 after the concentrated sludge is scraped off is compressed by means of a liquid press roll 6, and filtered water is collected to a waste channel 7 and discharged.

87. 发明专利

JPS5599393A METHOD AND APPARATUS FOR EXHAUST WATER TREATMENT 失效
公开(公告)号：JPS5599393A
公开(公告)日：1980-07-29
申请号：JP603879
申请日：1979-01-24
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： ISHIBASHI HITOSHI , NISHIMURA YUUSAKU , OTAHARA YOUJI , KUBOTA SHIYOUJI
IPC分类号： C02F3/34 , C12R1/01
摘要： PURPOSE:To improve the nitration and denitrification efficiency, by carrying out sticking growth of microorganism on the surface of solid effectively, at the time of removing nitrogen amount from waste water containing BOD and nitrogen compounds by using nitration fungus and denitrification fungus. CONSTITUTION:The organic waste water 2 containing BOD and nitrogen compounds, is entered the reaction vessel 1 and is passed flowing between anaerobic zone parallel board groups 15b. On this occasion, the above water 2 is entered the gas supply part 6 of the next room after carryig out BOD oxidation reaction and denitrification reaction on the surface of the groups 15b by sticking-grown microorganism. The water 2 is risen with the air bubbles 5a discharged from the part 6 and is overflowed to the next room from the upper tip part of the partition board 14 taking in oxygen and then, is passed through the aerobic zone parallel board groups 15a. On this occasion, pH of the water is measured by the pH sensor 18 and pH is regulated at 7.5-8.5 by supplying neutralizing agent from the supply opening 21. The above water is joined to the exhaust water at the exhaust water supply part 3 again after carrying out nitration reaction on the surface of the parallel boards by sticking-grown microorganism. The treating water 13 is discharged through the settling separation vessel 16.

88. 发明专利

JPS5568284A EQUIPMENT AND METHOD OF AEROBIC FERMENTATION 失效
公开(公告)号：JPS5568284A
公开(公告)日：1980-05-22
申请号：JP14096178
申请日：1978-11-17
申请人： HITACHI LTD
发明人： YAMAGUCHI TETSUO , SAITOU SETSUO , OTAHARA YOUJI
IPC分类号： C12M1/04 , C12M1/21 , C12N1/00
摘要： PURPOSE:The floor that separates the fermentation and gas-exhausting chambers is projected upward at the peripheral part to make a space for collecting the exhausting gas and holes for blowing out the gas into the exhausting chamber are bored near the top of the projection, thus breaking foam produced during the fermentation continuously and steadily. CONSTITUTION:Air is blown from the pipe connected to the bottom of fermentation chamber 1 continuously, atomized by distributers 9 and accumulates as foam on the liquid surface. The foam is pushed up in turn by bubbles coming up from the bottom to come into projecting space 4 and blown out of holes 5 into air-exhaustion chamber 2 and defoamed. The gas is expelled from pipe 7 and the liquid fraction is circulated through pipe 8. The remaining bubbles reach near holes 5 and are broken by the high-speed air-liquid mixture and further by revolving defoamer 6.

89. 发明专利

JPS5556899A TREATMENT METHOD FOR SLUDGE 失效
公开(公告)号：JPS5556899A
公开(公告)日：1980-04-26
申请号：JP13045178
申请日：1978-10-25
申请人： HITACHI LTD
发明人： YAMAGUCHI TETSUO , SAITOU SETSUO , SHIMIZU NORIO , OTAHARA YOUJI
IPC分类号： C02F11/06 , C02F11/18 , F23G5/04
摘要： PURPOSE:To reduce BOD concentration in liquid formed in the treatment of sludge by heating by the procedure in which biological sludge is treated by heating, then a combustible adsorbent is added to the sludge, and then the sludge is dewatered and incinerated. CONSTITUTION:Sludge discharged from treatment plants using activated sludge method, etc., for organic waste waters is heat-treated at a liquid temperature of approx. 200 deg.C and a pressure of approx. 15kg/cm G, and then the heat-treated sludge is mixed with a combustible adsorbent, e.g., powdered active carbon, etc.), dewatered and then incinerated, where the amount of the adsorbent to add to the is 0.5-30wt%. The addition of the adsorbent to the sluge greatly lowers NOD concentration is supernatant liquor from dewatering, increases the dewatering efficiency of sludge due to its filtering aid effect, and also reduces the amount of heavy oil, etd., used in the incineration of dewatered sludge cake.

90. 发明专利

JPS5544303A SEDIMENTATION PROPERTY IMPROVING METHOD OF ACTIVATED SLUDGE 失效
公开(公告)号：JPS5544303A
公开(公告)日：1980-03-28
申请号：JP11581378
申请日：1978-09-22
申请人： HITACHI LTD
发明人： SHIMIZU NORIO , OTAHARA YOUJI , MAZAKI YASUNORI
IPC分类号： C02F3/12 , C02F3/34
摘要： PURPOSE:To improve the precipitability of sludge by adding the fungus body of alkaligenes faecalis HRL-1 strain having been cultured in the presence of Mg ion to activated sludge. CONSTITUTION:Alkaligen faecalis HRL-1 strain is cultured in the presence of Mg ion. This cultured fungus body is added at 0.1-5wt% to the activated sludge. At the time these fungi propagate by taking nutritive matter into their own flocs in an aerating tank, they take the bacteria into the activated sludge of poor floc formation thereby forming large activated sludge flocs. This causes the activated sludge to change to dense and large flocs, thereby improving sedimentation property. In order to form the good flocs, Mg is added at about 10 mol concentration into the waste water. This method reduces the volume of the precipitating tank.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式