公开(公告)号：US20190077693A1

公开(公告)日：2019-03-14

申请号：US16188789

申请日：2018-11-13

申请人： DENNERT PORAVER GMBH

发明人： KARL WEINBERGER ,  WOLFRAM NEIDHARDT

IPC分类号： C03B19/10 ,  C03B19/08 ,  C03C11/00

摘要： A process and a plant produce hollow microspheres made of glass. According to the process an aqueous suspension is prepared from starting materials containing glass powder and water glass, feedstock particles having a diameter between 5 μm and 300 μm, in particular between 5 μm and 100 μm, being produced from the suspension. The feedstock particles are mixed with a pulverulent release agent made of aluminum hydroxide in an intensive mixer. The mixture of feedstock particles and release agent is subsequently introduced into a firing chamber of a furnace. The feedstock particles expand in the firing chamber, at a firing temperature which exceeds the softening temperature of the glass powder, to form the hollow microspheres.

公开(公告)号：US20170327412A1

公开(公告)日：2017-11-16

申请号：US15667782

申请日：2017-08-03

申请人： DENNERT PORAVER GMBH

发明人： KARL WEINBERGER

IPC分类号： C03C11/00 ,  C03B19/08 ,  C03C1/02 ,  C03C3/087

CPC分类号： C03C11/007 ,  C03B19/08 ,  C03C1/026 ,  C03C3/087

摘要： In a method for producing an expanded-glass granular material, starting materials containing glass powder, water glass, at least one blowing agent, and metakaolin, are mixed in order to form a homogeneous slurry. The slurry is granulated to form raw granular-material particles, which are foamed at a baking temperature between 780° C. and 950° C. in order to form expanded-glass granular-material particles. The expanded-glass granular material has a long-term water absorption of less than 25 volume percent when the expanded-glass granular material is exposed to water for a time period of 21 days.

公开(公告)号：US20180251396A1

公开(公告)日：2018-09-06

申请号：US15972271

申请日：2018-05-07

申请人： Dennert Poraver GmbH

发明人： KARL WEINBERGER

IPC分类号： C03C11/00 ,  C03C4/00 ,  C03C3/087 ,  C03C1/02 ,  C12M1/107 ,  C12M1/12

CPC分类号： C03C11/007 ,  C03C1/02 ,  C03C3/087 ,  C03C4/0007 ,  C03C2201/11 ,  C03C2201/40 ,  C03C2201/58 ,  C03C2203/10 ,  C12M21/04 ,  C12M25/16 ,  Y02E50/343

摘要： A pelletized expanded glass material is provided, which is particularly suitable as a growth support for microorganisms, especially for use in a biogas plant or an anaerobic sewage treatment plant. The production process of the invention for the pelletized expanded glass material contains the steps of: mixing a ground glass, an expanding agent and a binder to give a starting mixture. The starting mixture is pelletized to give ground glass pellet green bodies. The ground glass pellet green bodies are foamed to give expanded glass pellet particles at temperatures of 600 to 950° C. Accordingly, especially in the production of the starting mixture, minerals and or trace elements are added, which serve especially for the nutrient supply of microorganisms used in the biogas plant or the anaerobic sewage treatment plant.

公开(公告)号：US20170015576A1

公开(公告)日：2017-01-19

申请号：US15212320

申请日：2016-07-18

申请人： DENNERT PORAVER GMBH

发明人： KARL WEINBERGER

IPC分类号： C02F3/30 ,  B03C1/30

CPC分类号： C02F3/307 ,  B03C1/30 ,  B03C2201/20 ,  C02F1/488 ,  C02F3/107 ,  C02F3/109 ,  C02F3/301 ,  C02F3/305 ,  C02F3/348 ,  C02F2003/001 ,  C02F2101/16 ,  Y02W10/15

摘要： A process and an associated facility for treating ammonium-containing wastewater are specified. Ammonium present in the wastewater is first oxidized to nitrite by use of aerobically oxidizing bacteria in an activation unit. Then ammonium and nitrite are reduced to elemental nitrogen anaerobically by use of ANAMMOX bacteria. Excess sludge arising in this operation is removed from the activation unit. ANAMMOX bacteria removed with the excess sludge are separated and returned to the activation unit. To facilitate the returning of the ANAMMOX bacteria, magnetic or magnetizable expanded glass particles are added, as colonization bodies for the ANAMMOX bacteria, to the wastewater in the activation unit. Expanded glass particles removed from the activation unit with the excess sludge are separated from the excess sludge magnetically and returned to the activation unit.

摘要翻译： 规定了处理含铵废水的方法和相关设施。 废水中存在的铵首先通过活化单元中有氧氧化细菌被氧化成亚硝酸盐。 然后通过使用ANAMMOX细菌将铵和亚硝酸盐厌氧地还原成元素氮。 在该操作中产生的过多污泥从激活单元中移除。 用过量污泥去除的ANAMMOX细菌被分离并返回到活化单元。 为了促进ANAMMOX细菌的返回，将作为ANAMMOX细菌的定殖体的磁性或可磁化的膨胀玻璃颗粒加入到活化单元中的废水中。 从活化单元中除去多余污泥的膨胀玻璃颗粒与多余的污泥磁力分离并返回到活化单元。