中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

106 records (took 0.026 seconds)

    Waste activated sludge phosphorus and magnesium stripping process and struvite production system
    5.
    发明授权
    Waste activated sludge phosphorus and magnesium stripping process and struvite production system 有权
    废活性污泥磷和镁剥离过程和鸟粪石生产系统

    公开(公告)号：US08496827B2

    公开(公告)日：2013-07-30

    申请号：US12451168

    申请日：2009-02-02

    Applicant: Robert James Baur

    Inventor： Robert James Baur

    IPC: C02F11/04 ,  C02F3/30

    CPC classification number: C02F1/5254 ,  C02F1/12 ,  C02F1/26 ,  C02F1/5245 ,  C02F1/66 ,  C02F3/28 ,  C02F9/00 ,  C02F11/04 ,  C02F11/121 ,  C02F2101/105 ,  C02F2101/322 ,  C02F2101/34 ,  C02F2305/06 ,  C05B7/00 ,  C05F17/0018 ,  C05F17/0036 ,  C05F17/0045 ,  C05F17/0288 ,  Y02P20/145 ,  Y02W30/43 ,  Y02W30/47 ,  Y10S210/906 ,  C05D9/00

    Abstract: A method of treating a mixture of microorganisms with readily biodegradable carbon compounds (RBCs) in the form of one or more volatile fatty acids (VFAs), by first inducing the mixture microorganisms to release phosphorus and magnesium which is then tapped o as the mixture is thickened, to produce a phosphorus/magnesium-nch liquid and a phosphorus/magnesium-reduced treated mixture This treated mixture is placed in an anaerobic digester where ammonia is formed, but combines very little with phosphorus or magnesium Next the high-ammonia mixture is dewatered to produce an ammonia-rich liquid, which is combined with the phosphorus and magnesium-rich liquid and reacted to form struvite In one preferred embodiment, VFAs are formed in situ via an upstream unified fermentation and thickening (UFAT) process and added to the waste sidestream to strip phosphorus and magnesium found therein In another preferred embodiment a usable struvite product is harvested.

    Abstract translation: 通过首先诱导混合物微生物释放磷和镁，然后以混合物的形式敲击，将微生物混合物处理成一种或多种挥发性脂肪酸（VFA）形式的容易生物降解的碳化合物（RBC）的方法 增稠，生成磷/镁-nch液体和磷/镁还原处理混合物将处理过的混合物置于厌氧消化器中，其中形成氨，但与磷或镁结合很少接下来，高氨混合物脱水 产生富含氨的液体，其与富含磷和富镁的液体结合并反应形成鸟粪石。在一个优选实施方案中，通过上游统一发酵和增稠（UFAT）方法原位形成VFA并加入到废物中 用于剥离其中的磷和镁的侧流。在另一个优选实施方案中，收获可用的鸟粪石产品。

    Apparatus for treating organic wastewater and sludge
    9.
    发明授权
    Apparatus for treating organic wastewater and sludge 失效
    用于处理有机废水和污泥的设备

    公开(公告)号：US07264715B2

    公开(公告)日：2007-09-04

    申请号：US10484766

    申请日：2003-04-17

    Applicant: Takao Hagino ,  Yuichi Fuchu ,  Hideyuki Yoshida ,  Masaaki Nishimoto ,  Kazuaki Shimamura

    Inventor： Takao Hagino ,  Yuichi Fuchu ,  Hideyuki Yoshida ,  Masaaki Nishimoto ,  Kazuaki Shimamura

    IPC: C02F3/00

    CPC classification number: C02F1/5254 ,  C02F1/38 ,  C02F1/5236 ,  C02F11/04 ,  C02F11/12 ,  C02F11/14 ,  C02F2101/105

    Abstract: A process and an apparatus for efficiently recovering magnesium ammonium phosphate (MAP) crystals of high purity and good quality in the technique of removing phosphorus and the like as MAP crystals from wastewater containing high concentration organic substance, phosphorus and nitrogen such as a digested supernatant liquor of human waste sewage and septic tank sludge, a digested liquor of sludge, chemical plant wastewater, and simultaneously recovering the MAP crystals. The sludge treatment process includes treating a sludge mixed liquor formed in the biological treatment system for organic wastewater in an anaerobic digestion tank to effect the digestion of sludge, simultaneously adding a magnesium source to the anaerobic digestion tank to allow crystals particles of MAP to form and grow in the anaerobic digestion tank, withdrawing a sludge mixed liquor containing the crystals of MAP from the anaerobic digestion tank, separating and recovering solids containing MAP crystal particles from the withdrawn sludge mixed liquor, and returning part of the sludge mixed liquor after separation and recovery of MAP crystal particles to the anaerobic digestion tank.

    Abstract translation: 在从含有高浓度有机物质，磷和氮的废水中除去磷等作为MAP晶体的技术中高纯度和高质量的磷酸镁（MAP）晶体的方法和装置，如消化的上清液 人造污水和化粪池污泥，污泥消化液，化工厂废水，同时回收MAP晶体。 污泥处理过程包括在厌氧消化罐中处理生物处理系统中形成的有机废水的污泥混合液，以实现污泥的消化，同时向厌氧消化槽中加入镁源，以形成MAP的晶体颗粒， 在厌氧消化罐中生长，从厌氧消化槽中取出含有MAP结晶的污泥混合液，从取出的污泥混合液中分离回收含有结晶颗粒的固体，并在分离和回收后返回部分污泥混合液 的MAP晶粒到厌氧消化槽。

    Apparatus for removing phosphorus from waste lagoon effluent
    10.
    发明授权
    Apparatus for removing phosphorus from waste lagoon effluent 有权
    从废水池废水中除磷的设备

    公开(公告)号：US06994782B2

    公开(公告)日：2006-02-07

    申请号：US10659239

    申请日：2003-09-09

    Applicant: Keith E. Bowers ,  Philip W. Westerman

    Inventor： Keith E. Bowers ,  Philip W. Westerman

    IPC: C02F1/58

    CPC classification number: C02F1/68 ,  C02F1/5254 ,  C02F1/66 ,  C02F2001/007 ,  C02F2101/105 ,  C02F2103/20 ,  Y02W10/37 ,  Y10S210/906

    Abstract: An apparatus and method for removing phosphorus from a wastewater effluent stream from a hog waste lagoon. The wastewater effluent is introduced to the bottom of an inverted cone-shaped continuous crystallizer including a fluidized bed of struvite therein. An effective amount of ammonia is introduced to the wastewater effluent at the bottom of the crystallizer to elevate the pH of wastewater effluent a predetermined amount. An effective amount of magnesium is also introduced to the wastewater effluent at the bottom of the crystallizer. The composition adjusted wastewater effluent is then continuously passed upwardly through the fluidized bed of struvite to reduce the total phosphorus content of the wastewater effluent a predetermined amount of up to about 80% or more. The treated wastewater effluent stream is removed from the top of the crystallizer, and struvite crystals that grow large enough to sink from the bottom of the crystallizer are periodically removed from a collection chamber therebeneath.

    Abstract translation: 一种用于从猪废物泻湖的废水流出物流中除磷的设备和方法。 将废水流出物引入倒锥形连续结晶器的底部，其中包括其中的鸟粪石流化床。 将有效量的氨引入到结晶器底部的废水流出物中，以将废水流出物的pH提高到预定量。 有效量的镁也被引入到结晶器底部的废水流出物中。 然后将组合物调节的废水流出物连续地通过鸟粪石的流化床，将废水流出物的总磷含量降低至约80％或更高的预定量。 经处理的废水流出物流从结晶器的顶部除去，而从结晶器底部生长的足够大的晶体晶体从其收集室周期性地移出。

Patent Agency Ranking