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    • 2. 发明授权
    • Process for effecting microbial control and reducing slime growth on
hard surfaces in food processing equipment using inline ozonation
    • 使用直列臭氧化处理食品加工设备中微生物控制和降低硬表面粘液生长的方法
    • US5858443A
    • 1999-01-12
    • US577484
    • 1996-05-13
    • Robert D. HeiKeith D. LokkesmoeGuang-jong J. WeiBruce R. Cords
    • Robert D. HeiKeith D. LokkesmoeGuang-jong J. WeiBruce R. Cords
    • C02F1/50C02F1/00C02F1/78A23B1/00A23L1/20A23B1/20
    • C02F1/78C02F1/008
    • The invention relates to treatment of aqueous streams and aqueous systems with ozone. The aqueous stream comprises a closed loop system providing transport from a production locus to a processing locus for a variety of products. The aqueous stream can contain a challenge soil load and a microbial load. A treatment zone is defined through which the aqueous stream passes. The treatment zone is contacted with a sufficient concentration of ozone to substantially reduce the microbial population and to substantially reduce the number of microorganisms that can generate slime on the interior of the system. An amount of ozone is added to the aqueous stream in the treatment zone such that once the microbial populations are reduced to a safe level, the ozone concentration is also reduced to a level substantially safe for contact with operating personnel and product. Typically, such concentration is less than one part by weight of ozone per million parts by weight of aqueous system, preferably less than 0.5 parts by weight of ozone per million parts of aqueous system. The use of a treatment zone in an aqueous system segregates the ozone from release into areas frequented by operating personnel, sensitive materials or product.
    • 本发明涉及用臭氧处理含水物流和含水体系。 含水流包括提供从生产地点到各种产品的加工场所的运输的闭环系统。 水流可能含有挑战性土壤负荷和微生物负荷。 定义一个处理区,水流通过该处理区。 处理区与足够浓度的臭氧接触以显着减少微生物群体并显着减少可在系统内部产生粘液的微生物数量。 在处理区域中的水流中加入一定量的臭氧,使得一旦将微生物群体降低到安全水平,臭氧浓度也降低到与操作人员和产品接触的基本安全的水平。 通常,这种浓度小于每百万重量份水性体系的臭氧的一重量份,优选每百万份水性体系小于0.5重量份的臭氧。 在水系统中使用处理区将臭氧从释放分离到由操作人员,敏感材料或产品经常访问的区域。
    • 6. 发明授权
    • Use of infrared radiation in detection methods to defoam aqueous systems
    • 在检测方法中使用红外辐射消除含水系统
    • US5868859A
    • 1999-02-09
    • US729140
    • 1996-10-11
    • Robert D. HeiKeith D. LokkesmoeJay T. KummetScott P. Bennett
    • Robert D. HeiKeith D. LokkesmoeJay T. KummetScott P. Bennett
    • B01D19/04C02F1/40G05D23/00B08B3/04B08B3/08
    • B01D19/04Y10T436/12
    • The creation of a substantial volume of foam on the surface of an aqueous medium can reduce the apparent thermal IR emission substantially when compared to that of the aqueous medium free of foam. This difference in temperature (infrared emission) can be used to control a defoaming process or the addition of a defoaming agent to control foam in the aqueous medium. The apparent thermal infrared emission of foam is less than that of the aqueous medium. As the thermal IR emissions drop as foam develops, the difference between the apparent temperature of the foam and the temperature of aqueous medium increases. Such a difference in temperature can be used to control use of a defoaming process or agent. As the foam volume is reduced, the addition of a defoaming composition is substantially reduced or stopped. During the control method, a predetermined limit is established at which the defoaming process or composition is introduced into the aqueous medium. Further, the method permits the amount of defoaming agent added to the aqueous medium to be in proportion to the difference in infrared emission above the preset predetermined limit. The temperature of the foam is best measured using IR methods.
    • 在与水性介质的表面上相当量的泡沫的产生可以相对于不含泡沫的水性介质的情况,可以显着降低表观热IR辐射。 这种温度差异(红外发射)可用于控制消泡过程或添加消泡剂以控制水性介质中的泡沫。 泡沫的表观热红外发射小于水介质的热红外发射。 随着泡沫发展时的热IR辐射下降,泡沫的表观温度和水介质的温度之间的差异增加。 这种温度差可用于控制消泡过程或试剂的使用。 随着泡沫体积的减小,消泡组合物的添加被显着地减少或停止。 在控制方法期间,建立将消泡处理或组合物引入水性介质中的预定极限。 此外,该方法允许添加到水性介质中的消泡剂的量与预定的预定极限以上的红外发射的差异成比例。 使用IR方法最好测量泡沫的温度。
    • 7. 发明授权
    • Peroxyacid compound use in odor reduction
    • 过氧酸化合物用于减少气味
    • US6015536A
    • 2000-01-18
    • US7225
    • 1998-01-14
    • Keith D. LokkesmoeRobert D. HeiJoel J. Schilling
    • Keith D. LokkesmoeRobert D. HeiJoel J. Schilling
    • B01D53/38B01J8/00
    • B01D53/38
    • Disclosed is a process for the treatment of a plant fluid effluent containing odor compounds including an alkyl mercaptan or an alkyl thiol, an amine compound, ammonia, hydrogen sulfide and mixtures thereof by contacting the plant effluent in either a counterflow or cocurrent flow process. In the process, the effluent is contacted with an aqueous solution comprising a peracid compound. When contacted with the peracid, odor compounds in the effluent are oxidized and converted from the gaseous phase into a chemically modified highly aqueous soluble phase in the aqueous treatment. In this way, odor removal from the gas is preferred and odor compounds are efficiently transferred into the aqueous treatment solution. The use of such a process produces a significant improvement in odor quality index as measured by a conventional process using an expert panel when compared to conventional treatment methods.
    • 公开了一种通过以逆流或并流方式接触植物流出物来处理含有包含烷基硫醇或烷基硫醇,胺化合物,氨,硫化氢及其混合物的气味化合物的植物流体流出物的方法。 在此过程中,流出物与包含过酸化合物的水溶液接触。 当与过酸接触时,流出物中的气味化合物在水性处理中被氧化并从气相转化成化学改性的高度水溶性相。 以这种方式,优选从气体中除去气味,并且气味化合物有效地转移到水处理溶液中。 使用这种方法通过使用专家面板的常规方法与常规处理方法相比测量,可以显着改善气味质量指数。
    • 9. 发明授权
    • Simultaneous use of peroxygen and olefin compound in odor reduction
    • 同时使用过氧和烯烃化合物进行除臭
    • US06277344B1
    • 2001-08-21
    • US09435932
    • 1999-11-09
    • Robert D. P. HeiKeith D. LokkesmoeLouis M. Holzman
    • Robert D. P. HeiKeith D. LokkesmoeLouis M. Holzman
    • B01J800
    • B01D53/38
    • Disclosed is a process for the treatment of a plant fluid effluent containing odor compounds including an alkyl mercaptan or an alkyl thiol, an amine compound, ammonia, hydrogen sulfide and mixtures thereof by contacting the plant effluent in either a counterflow or cocurrent flow process. In the process, the effluent is contacted with an aqueous solution comprising a peroxyacid compound and one or more essential oils. When contacted with the peroxyacid, odor compounds in the effluent are oxidized and converted from the gaseous phase into a chemically modified highly aqueous soluble phase in the aqueous treatment. In this way, odor removal from the gas is preferred and odor compounds are efficiently transferred into the aqueous treatment solution. The use of such a process produces a significant improvement in odor quality index as measured by a conventional process using an expert panel when compared to conventional treatment methods.
    • 公开了一种通过以逆流或并流方式接触植物流出物来处理含有包含烷基硫醇或烷基硫醇,胺化合物,氨,硫化氢及其混合物的气味化合物的植物流体流出物的方法。 在该方法中,流出物与包含过氧酸化合物和一种或多种精油的水溶液接触。 当与过氧酸接触时,流出物中的气味化合物在水性处理中被氧化并从气相转化成化学改性的高度水溶性相。 以这种方式,优选从气体中除去气味,并且气味化合物有效地转移到水处理溶液中。 使用这种方法通过使用专家面板的常规方法与常规处理方法相比测量,可以显着改善气味质量指数。