• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Wastewater treatment station with oxygen transfer improvement. It comprises: reactor (1) to receive waste water to be purified; aeration means, for introducing into the reactor (1) bubbles (5) of oxygen-containing fluid; at least one basket (10), inside the reactor (1); and a plurality of interaction bodies (11) housed in the basket (10). The basket (10) comprises a cross-linked lateral surface provided with first openings (12) to allow access to the interior of the basket (10) of both the active sludge and the bubbles (5). The interaction bodies (11) float disorderly suspended in the mud inside the baskets (10), to intercept the bubbles (5) and interrupt the rise of said bubbles (5). It allows increasing the residence time of the bubbles (5) and therefore increasing the transfer of oxygen to the waste water. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2617077A1
    申请号:ES201531813
    申请日:2015-12-15
    公开日:2017-06-15
    发明作者:Carlos LARDÍN MIFSUT
    申请人:Entidad Regional De Saneamiento Y Depuracion De Aguas Residuales de la Region De Murcia (esamur)；
    IPC主号:
    专利说明:

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    operation of the WWTP, certain controls may be included, as indicated below. In particular, in developing the experiments with the prototype reactor (1) shown in Figures 1 and 2, an air manifold (16) was included, such as a floating exhaust fume hood or the like (also known in the sector such as "off-gas type hood"). The air manifold (16) is mounted on the top (9) of the reactor (1) and is used to collect the air that escapes from the reactor (1). Additionally, a first meter (17), such as a weather station, is included to measure the molar fractions of gases, such as CO2, N2, O2 and H2O, at the inlet of the air manifold (16). Likewise, a second meter (18) is used to measure the molar fractions at the outlet of the air manifold (16). A third meter (19) allows the concentration of oxygen in the active sludge to be measured.
    The arrangement of the indicated controls, commanded by a control unit (20), allows to obtain a measure of the variation of oxygen that occurs in the air that exits the upper part (9) of the reactor (1), with respect to the air that is supplied to the reactor (1) through the aeration means. From these measurements taken, both for oxygen and for carbon dioxide, the yield in oxygen transfer under standard conditions (SOTEpw) is obtained and, applying the ASCE 18-1996 standard of the American Society of Civil Engineers, the Oxygen transfer performance under real conditions (OTEpw).
    To illustrate the contribution of the invention, the results obtained in several cases carried out according to the methodology explained are shown and discussed below.
    The tests have been carried out with a pilot plant of biological sludge with a volume of 0.40 m3 and a draft of 4.15 m, fed with biological sludge from the facility itself, contemplating different scenarios: variations in the nature of the elements of diffusion; variations in the depth (with respect to the draft or with respect to the diffusion elements) of the basket (10) used or, where appropriate, of the upper basket (10); variations in the unit volume ratio of the baskets (10) occupied by a filling formed by the interaction bodies (11); installation or not of meshes (14) perforated. In all experiments, an active sludge flow of 2 m3 / h and an air flow of 1 Nm3 / h have been considered.
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    2.-Conclusions for group II
    -There is a very significant increase in performance, up to 70% when a device with 2 baskets (10) filled with 60% is introduced.
    12
    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
    WO2017103312A1|2017-06-22|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3324039A1|1983-07-04|1985-01-24|Bick, Heinrich, 3520 Hofgeismar|Aeration device for introducing gas into liquids, in particular for introducing air into water, in particular effluent|
    US4961854A|1988-06-30|1990-10-09|Envirex Inc.|Activated sludge wastewater treatment process|
    US6054048A|1997-04-17|2000-04-25|Nippoh Setsubi Co, Inc.|Water purification apparatus|
    GB2335189A|1998-03-14|1999-09-15|Itms Water Treatment Limited|Liquid effluent treatment apparatus|
    DE29823218U1|1998-12-23|1999-04-29|Reko Baum & Boden Gmbh|Biological small wastewater treatment plant with a fixed bed reactor|
    DE202015103162U1|2015-06-16|2015-06-29|MH Wassertechnologie GmbH|Arrangement for carrier material body for wastewater treatment|
    DE3415756C2|1984-04-27|1986-11-13|Dr.-Ing. Werner Weber Ingenieur-Gesellschaft mbH, 7530 Pforzheim|Method and device for the biological treatment of waste water|
    DE9104168U1|1990-05-08|1991-07-18|Envicon Klaertechnik Gmbh, 4220 Dinslaken, De|
    JPH0568989A|1991-09-10|1993-03-23|Chiyoda Corp|Filter material receiving cage/air diffusing pipe monolithic device for treating waste water|
    DE69833541T2|1998-04-08|2006-12-14|Ros Roca, S.A., Tarrega|Biological process and anoxic and / or aerobic bioreactor for the purification of liquid waste|
    WO2014125496A1|2013-02-18|2014-08-21|Mapal Green Energy Ltd.|Aerated bed biofilm reactor|
    法律状态:
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    优先权:
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    ES201531813A|ES2617077B1|2015-12-15|2015-12-15|RESIDUAL WATER CLEANING STATION WITH IMPROVEMENT OF OXYGEN TRANSFER AND IMPROVEMENT METHOD OF TRANSFER OF OXYGEN USING THIS STATION|ES201531813A| ES2617077B1|2015-12-15|2015-12-15|RESIDUAL WATER CLEANING STATION WITH IMPROVEMENT OF OXYGEN TRANSFER AND IMPROVEMENT METHOD OF TRANSFER OF OXYGEN USING THIS STATION|
    PCT/ES2016/070893| WO2017103312A1|2015-12-15|2016-12-14|Aerobic reactor with moving supports in a cage|
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