• 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:
    The invention relates to equipment capable of converting MgP and NH4 to struvite by binding NH4 to the granulate formed by the added MgP which is regenerated and recycled in the reactor tank of the plant. The plant also consists of equipment to keep the reactor tank agitated by recirculating water after it has been withdrawn from the reactor tank and the precipitate in vessel 2. The water discharged from the reactor tank by gravity settles in vessel 2 and the purified water is discharged from the tank top as purified. the precipitated granule is sent back to the reactor tank. At the same time as the precipitated material is recycled, contact between granulate and the water content of NH4 is created by using the recycled water to stir the reactor tank, thereby creating more struvite. It is important that the struvite taken out for recycling binds as much NH4 as possible before it is recycled, since the cost is almost the same whether there is much or little NH4 bound in the granulate / struvite. The system has been sought to be designed so that it can operate with the least possible control and so that it can run even if the liquid supply is temporarily stopped.
    公开号:DK201500110U1
    申请号:DK201500110U
    申请日:2015-08-06
    公开日:2016-11-11
    发明作者:Jens Karsten Poulsen
    申请人:Jens Karsten Poulsen；
    IPC主号:
    专利说明:

    Title:
    Application model application for: Plant for collecting NH4 in biogas plants and in reject water from biogas plants
    Scope of production
    The production relates to a plant which can continuously remove ammonium from a stream of water by forming struvite. The plant can also regenerate struvite, so it can be recycled as MgP and form part of the formation of new struvite. Likewise, the ammonium that is evaporated when struvite is ruled to MgP can be aspirated and injected into a container where ammonium is collected for use as fertilizer when appropriate.
    Prior Art:
    With the prior art, water and MgP granules are stirred together for ex. with a sliding gate type stirrer, thereby making contact between the granulate and the water's ammonium content. It takes some energy to keep granules floating in the water to make good contact between ammonia in the water and the stirred granules. The two '' floating objects '' (water and granules) tend to get the same speed in the rotation, thereby not providing the desired contact between the granules and ammonium. With the prior art, some electronics must also be used to control recycling of the transport of struvite for dewatering and regeneration of struvite so that NH4 is evaporated and collected. In the existing system, some control is also used to control the water flow through the system.
    The technical problem to be solved.
    With the prior art, much energy is used to stir both water and MgP granules. The known method does not obtain sufficient mixing of water with NH4 and MgP granules in the water for the MgP granules to absorb the optimum amount of NH4 per hectare. granule unit. Solving that task is the primary purpose of the new method of making contact between water content of ammonium and granule content of NH4. If this contact is successful, the granulate will be transformed into struvite and the water content of ammonium will be greatly reduced. In the new plant, this task is solved by placing the granulate at the bottom of a spiked reactor tank, while the water is circulated with a pump, so that the water is constantly pressed through the granulate at the bottom so that the spiked bottom container ensures that there is max. contact between water content of ammonium and granulate, (see PI)
    In order to regenerate struvite to be able to take up a new portion of NH4, the ammonium content of the granulate must be removed. This is done by removing struvite from the bottom of the reactor tank (P2) and sending it to a container where granulate is precipitated and the granulate which, after the take-up of NH4, has become struvite, is transported with a auger which simultaneously acts as a drainer to a horizontal
    The MgP granule is again capable of absorbing NH4 when returned to the reactor tank. The evaporated ammonium is extracted from the auger with a water injector pump which binds ammonium to the water which creates a vacuum and thereby absorbs the evaporated water and ammonium. The water vapors are blown into a pH-controlled tank.
    The new technique
    With the new technique, less energy is needed to make contact between MgP granules and the water's ammonium (NH4). This is because by pumping the water around instead of stirring water and granules - powerful enough to keep granules floating - less energy is needed than is needed to keep the water moving in the reactor tank (see drawing X).
    The new technology also saves part on electronics by simplifying the electronic control of the system. This is achieved, among other things. in that the water used to recycle the water over the granulate in the reactor tank also acts as a precipitate for the water that is finished and which must therefore be discharged.
    The technical impact.
    With the new plant, the contact between the water content of NH4 (what is to be removed) and the MgP granulate is created by pumping the water / NFL * (PI) through a reverse shower head, which ensures that the water is forced to flow through the granulate and thereby keep the granules floating easily, this creates a continuous contact between the water and granules. The effect of the plant can be regulated by increasing / decreasing the flow of water so that there is more or less water coming into contact with the granulate and consequently greater or less bonding of NH4 or more or less struvite is formed in the plant. PI also ensures that sufficient oxygen is supplied to the water as PI also draws an injector which sucks oxygen into the pumped water. Alternatively, the oxygen addition can be done by adding oxygen with a separate pumping.
    From the bottom of the reactor tank, struvite and water are taken directly to a pump (P2) which sends struvite and water to a vessel where struvite is precipitated and the auger transports struvite to a horizontal auger which transforms struvite into MgP. The auger that lifts the struvite up to the heat auger also acts as a dewatering unit, so that the struvit that comes to the auger does not contain a lot of water that is not attached to the struvite.
    权利要求:
    Claims (4)
    [1]
    Use model requirements no.
    [2]
    1 relates to a method of contacting a liquid content of NH4 / ammonium with a granule consisting of MgP.
    [3]
    With the new method the contact is ensured by the granulate being in a container (container) which is designed as a cone and where the granulate is at the tip of the cone.
    [4]
    The contact is ensured by pumping the water to be purified into the bottom of the cone (PI), thereby creating stirring in the cone. The water is recirculated in the cone. The pumping also ensures that there is sufficient oxygen in the reactor tank etc. to include oxygen during the pumping. Use model requirement # 2 relates to a method of extracting water from a reactor tank and forming a storage tank (beh2) which ensures that a constant pumping of water can take place in a reactor tank (beh 1) where there is MgP granules at the bottom of reactor tank. Use model requirement # 3 Specifies a method where a container (container 2) is used to settle water which is allowed into the container before discharge. The precipitated material is recycled to the reactor tank (reservoir 1) with pump 1 (PI) used for stirring in the reactor tank. Use model requirement # 4 relates to a method of regenerating struvite by taking struvit from a reactor tank and pumping it to a tank (reservoir 3) where the water level is kept constant with a drain to vessel 2 which is constantly emptied to pump 1 used for stirring in reactor tank. In container 3, a snail with a large rise is placed on the lift of the granules that settle in the container. The auger dewateres the granulate and delivers it in an almost horizontal auger which dries the granulate and steam and the associated NH4 is extracted and blown into a tank where it is stored for NH4 to be recycled.
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    同族专利:
    公开号 | 公开日
    DK201600153U3|2018-02-16|
    DK201500110Y3|2017-03-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2019-03-15| UBP| Utility model lapsed|Effective date: 20180806 |
    优先权:
    申请号 | 申请日 | 专利标题
    DKBA201500110U|DK201500110Y3|2015-08-06|2015-08-06|Installations for the capture of NH 4 in the biogas plant and the reject water from the biogas plant|DKBA201500110U| DK201500110Y3|2015-08-06|2015-08-06|Installations for the capture of NH 4 in the biogas plant and the reject water from the biogas plant|
    DKBA201600153U| DK201600153U3|2015-08-06|2016-12-15|Installations for the collection of NH4 in biogas plants and in reject water from biogas plants|
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