公开(公告)号：US20180029909A1

公开(公告)日：2018-02-01

申请号：US15707380

申请日：2017-09-18

申请人： The Trustees of Princeton University

发明人： Peter R. Jaffe ,  Shan Huang

IPC分类号： C02F3/34 ,  C02F3/30 ,  C02F101/00 ,  C02F101/20 ,  C02F101/30 ,  C02F101/16

CPC分类号： C02F3/341 ,  C02F3/301 ,  C02F3/303 ,  C02F3/307 ,  C02F3/346 ,  C02F2101/006 ,  C02F2101/16 ,  C02F2101/20 ,  C02F2101/30

摘要： Processes and compositions for removal nitrogen, organic and inorganic contaminants from wastewater using Feammox bacterium are provided.

公开(公告)号：US20170355979A1

公开(公告)日：2017-12-14

申请号：US15361539

申请日：2016-11-28

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Hyokwan BAE ,  Seockheon LEE ,  Yunchul CHUNG ,  Jin Young JUNG ,  Dae Hee CHOI ,  Dong Ryeol LEE

IPC分类号： C12N11/10 ,  C02F3/28 ,  C02F3/10 ,  C02F101/16

CPC分类号： C12N11/10 ,  C02F3/106 ,  C02F3/107 ,  C02F3/108 ,  C02F3/302 ,  C02F3/303 ,  C02F3/307 ,  C02F3/348 ,  C12N11/04 ,  C12N11/08 ,  Y02W10/15

摘要： Disclosed is a method for preparing the same. The method for preparing a carrier including ammonium oxidizing bacteria immobilized therein includes: preparing a PVA-alginate mixed solution containing PVA mixed with alginate; adding sludge containing ammonium oxidizing bacteria and sodium bicarbonate (NaHCO3) to the PVA-alginate mixed solution to obtain a foaming-beading solution; and dropping the foaming-beading solution to a saturated boric acid solution to obtain beads including sludge immobilized therein, wherein sodium bicarbonate (NaHCO3) is decomposed to produce carbon dioxide (CO2) which is discharged to the exterior of the beads to form pores in the beads, when the foaming-beading solution is dropped to the saturated boric acid solution to obtain beads including sludge immobilized therein.

公开(公告)号：US09815722B2

公开(公告)日：2017-11-14

申请号：US14085841

申请日：2013-11-21

申请人： cyklar-stulz GmbH

发明人： Geert Nyhuis

IPC分类号： C02F3/30 ,  C02F3/12 ,  C02F1/38

CPC分类号： C02F3/307 ,  C02F1/385 ,  C02F3/1221 ,  Y02W10/15

摘要： A method and installation for treating wastewater containing ammonia includes feeding activated sludge from an aeration tank into a hydrocyclone. The sludge is separated into a specifically heavy fraction containing mostly anaerobic ammonia-oxidizing bacteria (anammox) and a specifically light fraction containing mostly aerobic oxidizing bacteria (AOB), which are returned to the aeration tank. The hydrocyclone includes a roughened inner wall surface for at least partially removing an organic or inorganic cover layer disposed on the anaerobic ammonium-oxidizing bacteria (anammox).

公开(公告)号：US09802847B2

公开(公告)日：2017-10-31

申请号：US14033686

申请日：2013-09-23

申请人： D.C. Water & Sewer Authority

发明人： Sudhir N. Murthy ,  Eugenio Giraldo ,  Norman D. Dockett ,  Walter F. Bailey

IPC分类号： C02F3/00 ,  C02F3/12 ,  B01D36/00 ,  C02F3/28 ,  C02F3/30

CPC分类号： C02F3/00 ,  B01D36/00 ,  C02F3/006 ,  C02F3/12 ,  C02F3/1205 ,  C02F3/1221 ,  C02F3/1226 ,  C02F3/1236 ,  C02F3/2866 ,  C02F3/307 ,  C02F2209/005 ,  C02F2209/10 ,  C02F2209/105 ,  C02F2303/24 ,  Y02E50/343 ,  Y02W10/15

摘要： An apparatus and method for selecting and retaining solids in an activated sludge process for the improving wastewater treatment using screens. The screens can be used to separate and retain solids based on size or compressibility. The screens are used to separate and select for slow growing organisms, faster settling organisms, or materials added to absorb, treat or remove constituents in the activated sludge process.

公开(公告)号：US20170253515A1

公开(公告)日：2017-09-07

申请号：US15601678

申请日：2017-05-22

申请人： John H. Reid

发明人： John H. Reid

IPC分类号： C02F11/04 ,  C02F3/22 ,  C02F3/30

CPC分类号： C02F11/04 ,  C02F3/22 ,  C02F3/303 ,  C02F3/307 ,  C02F2209/10 ,  C02F2209/40 ,  C02F2301/043 ,  Y02W10/15

摘要： A common final clarifier is provided downstream of a two-stage or three-stage activated sludge (AS) system that includes: (A) one or more flow equalization basin (FEB) reactors and a nitritation reactor as the first AS stage, and an anammox reactor as the second AS stage, or (B) a carbonaceous biological oxygen demand (BOD) removal reactor and one or more FEBs as the first AS stage, a nitritation reactor as the second AS stage, and an anammox reactor as the third AS stage. A first return activated sludge (RAS) flow is conducted from the final clarifier to the first AS stage and a second segregated RAS flow is conducted to the second AS stage. Alternatively, a third segregated RAS flow is conducted to the third AS stage.

公开(公告)号：US20170253513A1

公开(公告)日：2017-09-07

申请号：US15603410

申请日：2017-05-23

申请人： Jiangxi JDL Environmental Protection Co., Ltd.

发明人： Zhimin LIAO ,  Tao ZHOU

IPC分类号： C02F3/30 ,  C02F3/34 ,  C02F3/12 ,  C02F3/20 ,  C02F1/44 ,  C02F3/00

CPC分类号： C02F3/301 ,  C02F1/444 ,  C02F3/006 ,  C02F3/1273 ,  C02F3/201 ,  C02F3/307 ,  C02F3/308 ,  C02F3/341 ,  C02F2101/105 ,  C02F2101/16 ,  C02F2209/22 ,  Y02W10/15

摘要： A method of wastewater treatment using a membrane bioreactor, including: controlling aeration to enable a dissolved oxygen concentration to be 0 to 1.5 mg/L, and keeping the integrated reaction vessel under a facultative environment. A wastewater treatment system by the membrane bioreactor without physical area division includes a reaction vessel, a membrane separation system, a water production system, and an aeration system. The membrane separation system is disposed inside the reaction vessel. The water production system communicates with the membrane separation system to pump filtrate out of the membrane separation system. The aeration system is employed to aerate the reaction vessel and the membrane separation system.

公开(公告)号：US09522833B2

公开(公告)日：2016-12-20

申请号：US14286123

申请日：2014-05-23

申请人： Manuel Alvarez-Cuenca ,  Maryam Reza

发明人： Manuel Alvarez-Cuenca ,  Maryam Reza

IPC分类号： C02F3/30

CPC分类号： C02F3/308 ,  C02F3/301 ,  C02F3/307

摘要： There is described a number of biological nutrient removal processes including Anammox Process, Biological Phosphorus Removal (BPR), Partial Nitrification, Full Nitrification, Partial Denitrification, Full Denitrification and Denitrification via BPR taking place in a Simultaneous Treatment of Anammox/PAOs Reactor (STAR) coupled with an Anaerobic Lateral Unit (ALU). In one aspect, there is a wastewater treatment system comprises a bioreactor having three consecutive stages: and an anaerobic lateral unit (ALU) coupled to the bioreactor; the bioreactor and ALU are configured to conduct biological removal of nutrients from the wastewater using a plurality of biological processes simultaneously. The three consecutive stages of the bioreactor comprise two Anoxic stages configured consecutively followed by one Aerobic stage. The stages may be oriented vertically and use gravity for fluid flow.

摘要翻译： 描述了在Anammox / PAOs反应器（STAR）的同时处理中通过BPR发生的一些生物营养物去除方法，包括Anammox Process，生物除磷（BPR），部分硝化，全硝化，部分脱氮，全反硝化和脱氮。 再加上厌氧侧向单位（ALU）。 一方面，废水处理系统包括具有三个连续阶段的生物反应器和与生物反应器耦合的厌氧侧向单元（ALU）; 生物反应器和ALU被配置为使用多个生物过程同时从废水中进行营养物质的生物去除。 生物反应器的三个连续阶段包括两个缺氧阶段，连续配置一个有氧阶段。 阶段可以垂直取向，并使用重力来进行流体流动。

公开(公告)号：US09409807B2

公开(公告)日：2016-08-09

申请号：US14346180

申请日：2012-09-25

申请人： Evoqua Water Technologies LLC

发明人： Thomas J. Larsen ,  Michael L. Doyle

IPC分类号： C02F3/30 ,  C02F3/00 ,  C02F1/38 ,  C02F1/42 ,  C02F1/44 ,  C02F1/469 ,  C02F101/10 ,  C02F101/16

CPC分类号： C02F3/307 ,  C02F1/38 ,  C02F1/42 ,  C02F1/441 ,  C02F1/444 ,  C02F1/4693 ,  C02F3/006 ,  C02F3/308 ,  C02F2101/105 ,  C02F2101/16 ,  C02F2203/00 ,  C02F2209/001 ,  C02F2209/005 ,  C02F2209/08 ,  C02F2209/16 ,  C02F2209/36 ,  C02F2209/40 ,  C02F2303/04 ,  C02F2303/24 ,  Y02W10/15

摘要： A method and system of treating wastewater using primary sludge is disclosed. The treatment system includes a primary separator that separates a carbon source comprising non-solubilized suspended carbon from a source of wastewater. The non-solubilized suspended carbon is solubilized and used as a source of carbon in an aerated anoxic treatment system.

摘要翻译： 公开了一种使用初级污泥处理废水的方法和系统。 处理系统包括将源自废水源的包含未溶解的悬浮碳的碳源分离的主分离器。 未溶解的悬浮碳被溶解并用作充气缺氧处理系统中的碳源。

公开(公告)号：US09340439B2

公开(公告)日：2016-05-17

申请号：US14026339

申请日：2013-09-13

申请人： D.C. Water & Sewer Authority ,  Hampton Roads Sanitation District

发明人： Bernhard Wett ,  Ahmed Omari ,  Pusker Regmi ,  Mark Miller ,  Charles B. Bott ,  Sudhir N. Murthy

IPC分类号： C02F3/30 ,  C02F3/00 ,  C02F3/34

CPC分类号： C02F3/305 ,  C02F3/006 ,  C02F3/303 ,  C02F3/307 ,  C02F3/34 ,  C02F3/348 ,  C02F2101/16 ,  C02F2209/14 ,  C02F2209/22

摘要： A reactor and control method thereof for nitrogen removal in wastewater treatment achieves a measured control of maintaining high ammonia oxidizing bacteria (AOB) oxidation rates while achieving nitrite oxidizing bacteria (NOB) repression, using various control strategies, including: 1) ammonia and the use of ammonia setpoints, 2) operational DO and the proper use of DO setpoints, 3) bioaugmentation of a lighter flocculant AOB fraction, and 4) proper implementation of transient anoxia within a wide range of reactor configurations and operating conditions.

摘要翻译： 一种用于废水处理除氮的反应器及其控制方法，通过使用各种控制策略，实现了维持高氨氧化细菌（AOB）氧化速率同时达到亚硝酸盐氧化细菌（NOB）抑制的控制方法，包括：1）氨和使用 的氨设定值，2）操作DO和正确使用DO设定值，3）较轻絮凝剂AOB馏分的生物增殖，以及4）在广泛的反应器配置和操作条件范围内适当实施瞬时缺氧。

公开(公告)号：US20160052811A1

公开(公告)日：2016-02-25

申请号：US14784830

申请日：2014-04-03

申请人： PAQUES I.P. B.V.

发明人： Tim Lucas George HENDRICKX ,  Tommaso LOTTI ,  Marinus Cornelis Maria VAN LOOSDRECHT ,  Jans KRUIT

IPC分类号： C02F3/30

CPC分类号： C02F3/307 ,  C02F2209/02 ,  C02F2209/08 ,  C02F2209/34 ,  C02F2209/44 ,  Y02E50/343

摘要： The invention relates to a process for biological removal of nitrogen from wastewater comprising: (a) providing a stream of wastewater comprising ammonium; (b) continuously supplying the stream of wastewater to a reactor containing granular sludge comprising granules having a core of anammox bacteria and an outer rim of ammonia oxidizing bacteria; (c) subjecting the wastewater in the reactor to ammonium oxidation under ammonium oxidizing conditions comprising a temperature in the range of from 5 to 25° C., a concentration of dissolved oxygen in the wastewater in the range of from 0.4 mg/L to 4.0 mg/L, and a hydraulic retention time of the wastewater in the reactor in the range of from 0.5 hours to 1.5 days, to obtain a gaseous stream comprising nitrogen and a dispersion of granular sludge and non-granular sludge in treated wastewater; and (d) continuously separating the dispersion obtained into a stream comprising granular sludge and a stream comprising treated wastewater and non-granular sludge and recycling the stream comprising granular sludge to the reactor and discharging the non-granular sludge from the process, wherein the granular sludge has a retention time in the reactor of at least ten times the hydraulic retention time, and wherein the retention time of any non-granular sludge in the reactor is equal to or at most three times the hydraulic retention time.

摘要翻译： 本发明涉及从废水中生物去除氮的方法，包括：（a）提供包含铵的废水流; （b）连续地将废水流供应到含有含有氨氧化细菌核和氨氧化细菌外缘的颗粒的含有颗粒污泥的反应器中; （c）使反应器中的废水在包含5至25℃范围内的温度，废水中的溶解氧浓度在0.4mg / L至4.0的范围内的铵氧化条件下进行铵氧化 mg / L，反应器废水的水力停留时间为0.5〜1.5天，得到含氮气体和处理废水中颗粒污泥和非颗粒污泥的分散体; 和（d）将得到的分散体连续地分离成包含颗粒污泥的流和包含经处理的废水和非颗粒污泥的料流，并将包含颗粒污泥的料流再循环到反应器中并从该方法排出非颗粒污泥，其中颗粒状 污泥在反应器中的停留时间为水力停留时间的至少十倍，并且其中反应器中任何非颗粒污泥的停留时间等于或至多为水力停留时间的三倍。