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公开(公告)号：US20050034825A1
公开(公告)日：2005-02-17
申请号：US10946157
申请日：2004-09-21
申请人： V.S. Sundaram , Derek Hornsey , Sebastien Corbeil , Steven Fisher
发明人： V.S. Sundaram , Derek Hornsey , Sebastien Corbeil , Steven Fisher
摘要： Provided is a process for bleaching pulp with ozone. The process involves preparing a slurry of cellulosic pulp having a consistency in fibers of from 1-5 weight %. Such a low consistency slurry is then mixed with ozone under high shear conditions. The ozone is then maintained in contact with the cellulosic fibers to effect bleaching of the fibers. The present process offers the advantages of bleaching using a low consistency slurry, with the added advantages of employing ozone.
摘要翻译： 提供了用臭氧漂白纸浆的方法。 该方法包括制备具有1-5重量％纤维稠度的纤维素浆浆。 然后将这种低稠度浆液与高剪切条件下的臭氧混合。 然后将臭氧与纤维素纤维保持接触以实现纤维的漂白。 本方法提供了使用低浓度浆料漂白的优点，并且具有使用臭氧的附加优点。
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公开(公告)号：US06793771B2
公开(公告)日：2004-09-21
申请号：US10463156
申请日：2003-06-16
IPC分类号： D21C914
摘要： Provided is a process for bleaching pulp with ozone. The process involves preparing a slurry of cellulosic pulp having a consistency in fibers of from 1-5 weight %. Such a low consistency slurry is then mixed with ozone under high shear conditions. The ozone is then maintained in contact with the cellulosic fibers to effect bleaching of the fibers. The present process offers the advantages of bleaching using a low consistency slurry, with the added advantages of employing ozone.
摘要翻译： 提供了用臭氧漂白纸浆的方法。 该方法包括制备具有1-5重量％纤维稠度的纤维素浆浆。 然后将这种低稠度浆液与高剪切条件下的臭氧混合。 然后将臭氧与纤维素纤维保持接触以实现纤维的漂白。 本方法提供了使用低浓度浆料漂白的优点，并且具有使用臭氧的附加优点。
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公开(公告)号：US06579412B2
公开(公告)日：2003-06-17
申请号：US10201248
申请日：2002-07-24
IPC分类号： D21C914
摘要： Provided is a process for bleaching pulp with ozone. The process involves preparing a slurry of cellulosic pulp having a consistency in fibers of from 1-5 weight %. Such a low consistency slurry is then mixed with ozone under high shear conditions. The ozone is then maintained in contact with the cellulosic fibers to effect bleaching of the fibers. The present process offers the advantages of bleaching using a low consistency slurry, with the added advantages of employing ozone.
摘要翻译： 提供了用臭氧漂白纸浆的方法。 该方法包括制备具有1-5重量％纤维稠度的纤维素浆浆。 然后将这种低稠度浆液与高剪切条件下的臭氧混合。 然后将臭氧与纤维素纤维保持接触以实现纤维的漂白。 本方法提供了使用低浓度浆料漂白的优点，并且具有使用臭氧的附加优点。
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公开(公告)号：US5378322A
公开(公告)日：1995-01-03
申请号：US64374
申请日：1993-05-21
申请人： Derek Hornsey
发明人： Derek Hornsey
摘要： In the non-acidic sizing of paper reaction between alkylketene dimer sizing agent and cellulose of cellulosic paper-making fibers is catalyzed by dissolving carbon dioxide in an aqueous vehicle of an aqueous pulp of the paper-making fibers; the carbon dioxide provides bicarbonate ions which catalyse the reaction; the bicarbonate ions may be generated by dissociation of the carbon dioxide in water, or by reaction of the carbon dioxide with calcium carbonate incorporated in the pulp as a filler for the paper, or with some other alkali present.
摘要翻译： 在非酸性浆料中，通过将二氧化碳溶解在造纸纤维的水性纸浆的水性载体中来催化烷基烯酮二聚体上浆剂和纤维素造纸纤维的纤维素之间的纸反应; 二氧化碳提供催化反应的碳酸氢根离子; 碳酸氢根离子可以通过二氧化碳在水中的解离，或通过二氧化碳与作为纸的填充剂的纸浆中掺入的碳酸钙反应，或与存在的其它碱反应而产生。
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5.发明授权Process for the bleaching of low consistency pulp using high partial pressure ozone 失效使用高分压臭氧漂白低浓度纸浆的方法公开(公告)号：US06773547B2
公开(公告)日：2004-08-10
申请号：US09852786
申请日：2001-05-11
IPC分类号： D21C914
摘要： Provided is a process for bleaching pulp with ozone. The process involves preparing a slurry of cellulosic pulp having a consistency in fibers of from 1 up to 5 weight %. Such a low consistency slurry is then mixed with high partial pressure ozone under high shear conditions. The ozone is then maintained in contact with the cellulosic fibers to effect bleaching of the fibers. The present process offers the advantages of bleaching using a low consistency slurry, with the added advantages of employing ozone.
摘要翻译： 提供了用臭氧漂白纸浆的方法。 该方法包括制备具有1至5重量％纤维稠度的纤维素浆的浆料。 然后将这种低稠度浆液与高分压臭氧在高剪切条件下混合。 然后将臭氧与纤维素纤维保持接触以实现纤维的漂白。 本方法提供了使用低浓度浆料漂白的优点，并且具有使用臭氧的附加优点。
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公开(公告)号：US4284510A
公开(公告)日：1981-08-18
申请号：US92283
申请日：1979-11-08
申请人： Guy Savard , Robert G. H. Lee , Derek Hornsey
发明人： Guy Savard , Robert G. H. Lee , Derek Hornsey
摘要： A biological waste water treatment carried out in a single tank. The conditions in the tank are controlled to provide a biological reaction zone containing waste water and biodegrading organisms and an overlying clarification zone from which an effluent of treated waste water flows. The recycle stream is continuously withdrawn from the biological reaction zone, supplemented with influent waste water, passed through an oxygen-dissolving device, and the supplemented stream returned to the reaction zone. The oxygen is monitored and supplied to satisfy the demands of the organisms and, at the same time, to keep the oxygen in solution. According to the invention, the supplemented recycle stream is continuously injected along the bottom of the biological reaction zone in a horizontal shallow inflow having a width substantially greater than its depth and a flow considerably greater than that of the influent. And, the recycle stream is withdrawn from near the bottom of the reaction zone, at a vicinity remote from the inflow, in an outflow having a substantially greater width than its depth. In this way there is created between the inflow and the outflow a horizontally relatively fast flowing undercurrent having an extensive uninterrupted interface with an overlying relatively quiescent body of mixed liquor flowing upwardly relatively slowly.
摘要翻译： 在单个罐中进行生物废水处理。 控制罐中的条件以提供含有废水和生物降解生物体的生物反应区，以及处理过的废水流出物的上层澄清区。 再循环流从生物反应区连续排出，补充有流入的废水，通过氧气溶解装置，补充的物流返回到反应区。 监测和供应氧气以满足生物体的需要，并同时将氧气保持在溶液中。 根据本发明，补充的再循环物流沿着生物反应区的底部连续地注入水平的浅流入物，其宽度明显大于其深度，流量明显大于流入物的流量。 并且，在远离流入物的附近，在具有比其深度大得多的宽度的流出物中，从反应区的底部附近回收再循环流。 以这种方式，在流入和流出之间产生水平相对快速流动的底流，其具有与相对缓慢地向上流动的上层相对静止的混合液体的不间断的界面。
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公开(公告)号：US4246111A
公开(公告)日：1981-01-20
申请号：US92176
申请日：1979-11-07
申请人： Guy Savard , Robert G. H. Lee , Derek Hornsey
发明人： Guy Savard , Robert G. H. Lee , Derek Hornsey
摘要： An apparatus is provided for treating waste water biologically and clarifying the biologically treated water; considerable economic advantage is obtained by conducting both the biological treatment and the clarification of biologically treated water in a single vessel rather than in separate vessels; it is further found possible to treat in this system water containing much higher concentrations of waste; in the process the supply of oxygen to the biological reaction zone is carefully monitored to meet the biological oxygen demand and avoid the occurrence of undissolved oxygen in the form of gas bubbles in the biological reaction zone or the clarification zone; there is further provided improvements in oxygen dissolving devices rendering them especially suitable for the two zone treatment.
摘要翻译： 提供一种生物处理废水并澄清生物处理水的装置; 通过在单个容器中进行生物处理和澄清生物处理的水而不是在单独的容器中获得相当大的经济优势; 进一步发现在该系统中可以处理含有高得多的废物浓度的水; 在此过程中，仔细监测生物反应区内的氧气供应以满足生物需氧量，避免生物反应区或澄清区气泡形成未溶解的氧气; 进一步提供了氧气溶解装置的改进，使得它们特别适用于两区域处理。
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8.发明授权Apparatus and method for measuring vent gas flow rates and parameters in pulp and paper processing 失效用于测量纸浆和纸张处理中的排放气体流速和参数的装置和方法
公开(公告)号：US4946555A
公开(公告)日：1990-08-07
申请号：US298749
申请日：1989-01-19
CPC分类号： G01F1/704 , D21C9/1052 , D21C9/147 , G01F1/7084 , G01N33/34 , Y10S162/10 , Y10S162/11
摘要： An inert gas such as helium is employed as a tracer gas in a pulp and paper mill to determine the utilization of oxygen by an aqueous cellulosic pulp particularly, as well as other parameters, in an oxygen delignification or extraction in which oxygen is dissolved in the pulp and reacted to solubilize lignins and reduce the requirement for chlorine-based bleaching chemicals.
摘要翻译： 在纸浆和造纸厂中使用诸如氦气的惰性气体作为示踪气体，以通过水性纤维素纸浆特别地以及氧脱木质素或其中氧溶解在其中的其它参数来确定氧的利用 纸浆并反应以溶解木质素并减少对氯基漂白化学品的需求。
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公开(公告)号：US4301007A
公开(公告)日：1981-11-17
申请号：US190014
申请日：1980-09-22
申请人： Guy Savard , Robert G. H. Lee , Derek Hornsey
发明人： Guy Savard , Robert G. H. Lee , Derek Hornsey
摘要： A biological waste water treatment carried out in a single tank. The conditions in the tank are controlled to provide a biological reaction zone containing waste water and biodegrading organisms and an overlying clarification zone from which an effluent of treated waste water flows. The recycle stream is continuously withdrawn from the biological reaction zone, supplemented with influent waste water, passed through an oxygen-dissolving device, and the supplemented stream returned to the reaction zone. The oxygen is monitored and supplied to satisfy the demands of the organisms and, at the same time, to keep the oxygen in solution. The supplemented recycle stream is continuously injected along the bottom of the biological reaction zone in a horizontal shallow inflow having a width substantially greater than its depth and a flow considerably greater than that of the influent. And, the recycle stream is withdrawn from near the bottom of the reaction zone, at a vicinity remote from the inflow, in an outflow having a substantially greater width than its depth. In this way there is created between the inflow and the outflow a horizontally relatively fast flowing undercurrent having an extensive uninterrupted interface with an overlying relatively quiescent body of mixed liquor flowing upwardly relatively slowly.
摘要翻译： 在单个罐中进行生物废水处理。 控制罐中的条件以提供含有废水和生物降解生物体的生物反应区，以及处理过的废水流出物的上层澄清区。 再循环流从生物反应区连续排出，补充有流入的废水，通过氧气溶解装置，补充的物流返回到反应区。 监测和供应氧气以满足生物体的需要，并同时将氧气保持在溶液中。 补充的再循环物流沿着生物反应区的底部连续注入，其宽度大大大于其深度，流量明显大于流入物的流量。 并且，在远离流入物的附近，在具有比其深度大得多的宽度的流出物中，从反应区的底部附近回收再循环流。 以这种方式，在流入和流出之间产生水平相对快速流动的底流，其具有与相对缓慢地向上流动的上层相对静止的混合液体的不间断的界面。
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公开(公告)号：US4192740A
公开(公告)日：1980-03-11
申请号：US905008
申请日：1978-05-11
申请人： Guy Savard , Robert G. H. Lee , Derek Hornsey
发明人： Guy Savard , Robert G. H. Lee , Derek Hornsey
CPC分类号： C02F3/223 , B01F3/04609 , C02F3/12 , C02F3/207 , Y02W10/15
摘要： A process is provided for treating waste water biologically and clarifying the biologically treated water; considerable economic advantage is obtained by conducting both the biological treatment and the clarification of biologically treated water in a single vessel rather than in separate vessels; it is further found possible to treat in this system water containing much higher concentration of waste; in the process the supply of oxygen to the biological reaction zone is carefully monitored to meet the biological oxygen demand and avoid the occurrence of undissolved oxygen in the form of gas bubbles in the biological reaction zone or the clarification zone; there is further provided improvements in oxygen dissolving devices rendering them especially suitable for the two zone treatment.
摘要翻译： 提供了一种生物处理废水并澄清生物处理水的方法; 通过在单个容器中进行生物处理和澄清生物处理的水而不是在单独的容器中获得相当大的经济优势; 进一步发现在该系统中可以处理含有高得多的废物浓度的水; 在此过程中，仔细监测生物反应区内的氧气供应以满足生物需氧量，避免生物反应区或澄清区气泡形成未溶解的氧气; 进一步提供了氧气溶解装置的改进，使得它们特别适用于两区域处理。
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