公开(公告)号：US20220259088A1

公开(公告)日：2022-08-18

申请号：US17626898

申请日：2020-07-23

Applicant: ANAERGIA INC.

Inventor： Andrew BENEDEK ,  Juan Carlos JOSSE

IPC: C02F11/04 ,  C02F11/147 ,  C02F11/18

Abstract: In a system and process, sludge from a wastewater treatment plant is treated in a high solids digester, optionally a mechanically mixed wet digester. Sludge (i.e. digestate) from the anaerobic digester is thickened or dewatered. Part of the thickened or dewatered digestate is thermally hydrolysed. The hydrolysed digestate may be, or may be further treated to produce, Class A biosolids. The hydrolysed digestate can be dewatered producing a liquid fraction that is recycled to the digester. Another part of the thickened or dewatered digestate is returned to the digester. The return of thickened or dewatered digestate to the digester allows for a smaller tank to be used (compared to a system without a recycle of thickened or dewatered digestate) while maintaining the same solids residence time (SRT) and volatile solids reduction (VSR). In some examples, the hydraulic residence time (HRT) of the digester is 10 days or less.

公开(公告)号：US20170166930A1

公开(公告)日：2017-06-15

申请号：US15389901

申请日：2016-12-23

Applicant: Anaergia Inc.

Inventor： Juan Carlos JOSSE ,  Andrew BENEDEK

IPC: C12P5/02 ,  C02F11/04 ,  C05D9/00 ,  C02F11/12 ,  C02F3/12 ,  C02F3/28 ,  C02F11/10

CPC classification number: C12P5/023 ,  C02F3/12 ,  C02F3/28 ,  C02F3/2893 ,  C02F11/04 ,  C02F11/10 ,  C02F11/12 ,  C02F11/121 ,  C02F2203/00 ,  C05D9/00 ,  C05F11/00 ,  C10B53/00 ,  C10B53/02 ,  C10K1/04 ,  Y02E50/14 ,  Y02E50/343 ,  Y02P20/145 ,  Y02W10/40 ,  Y02W30/47 ,  Y10T137/85978

Abstract: An anaerobic digester is fed a feedstock, for example sludge from a municipal wastewater treatment plant, and produces a digestate. The digestate is dewatered into a cake. The cake may be dried further, for example in a thermal drier. The cake is treated in a pyrolysis system to produce a synthesis gas and biochar. The gas is sent to the same or another digester to increase its methane production. The char may be used as a soil enhancer.

公开(公告)号：US20180195236A1

公开(公告)日：2018-07-12

申请号：US15867224

申请日：2018-01-10

Applicant: ANAERGIA INC.

Inventor： Andrew BENEDEK ,  Yaniv D. SCHERSON ,  Hans Frederick OUELLET ,  Juan Carlos JOSSE

IPC: D21B1/34 ,  D21H11/14 ,  D21B1/02 ,  D21B1/32 ,  B09B3/00

Abstract: This specification describes a system and process for treating waste, for example municipal solid waste (MSW) or post-recycling municipal solid waste. The system includes a press and a pulper. The press is adapted to provide a wet fraction of the waste suitable for anaerobic digestion and rejects. The pulper is adapted to receive the rejects and produce pulp. The pulper may be, for example, a drum pulper. In the process, waste is separated into a press into an organic fraction and rejects. The organic fraction is treated by way of anaerobic digestion. The rejects are separated, optionally in a drum pulper, to produce a fraction containing pulp. The pulp can be re-used to make paper or other products. In some case, 70% or more or 80% or more of MSW can be diverted from landfill.

公开(公告)号：US20160318819A1

公开(公告)日：2016-11-03

申请号：US15209293

申请日：2016-07-13

Applicant: ANAERGIA INC.

Inventor： Juan Carlos JOSSE ,  Andrew BENEDEK ,  Michael David THEODOULOU ,  Zachary SCOTT

IPC: C05C3/00 ,  C02F1/20 ,  C01C1/10 ,  C02F11/12 ,  C05G3/00 ,  C01C1/26 ,  C02F11/04 ,  C02F1/66

CPC classification number: C05C3/00 ,  C01C1/10 ,  C01C1/26 ,  C02F1/20 ,  C02F1/66 ,  C02F11/04 ,  C02F11/12 ,  C02F11/127 ,  C02F2101/16 ,  C05F5/008 ,  C05F7/00 ,  C05F17/0054 ,  C05G3/0058 ,  Y02A40/212 ,  Y02A40/213 ,  Y02P20/145 ,  Y02W30/43 ,  Y02W30/47

Abstract: Sludge from an anaerobic digester is treated to recover one or more of fibers, or solids or liquids with a high nutrient content. The solids or liquids can be used as a fertilizer. The fibers can be used in a plant growing medium. Solids are separated from liquids in the sludge and dried. The solids may be dried to produce a flake or pellet. Ammonia in the liquids is recovered and used to produce a concentrated acidic ammonium salt solution. This solution may be mixed with the solids to produce a nitrogen enhanced solid. The fibers and solids or liquids can also be used in combination to produce an enhanced plant growing medium. A device and process for removing ammonia from a liquid can be used in the system or separately.

Abstract translation: 处理来自厌氧消化器的污泥以回收一种或多种具有高营养成分的纤维，或固体或液体。 固体或液体可以用作肥料。 纤维可用于植物生长培养基中。 将固体与污泥中的液体分离并干燥。 固体可以被干燥以产生薄片或颗粒。 回收液体中的氨并用于产生浓缩的酸性铵盐溶液。 该溶液可与固体混合以产生氮增强固体。 纤维和固体或液体也可以组合使用以产生增强的植物生长培养基。 用于从液体中除去氨的装置和方法可以在系统中使用或分开使用。

公开(公告)号：US20250001475A1

公开(公告)日：2025-01-02

申请号：US18576460

申请日：2022-07-12

Applicant: ANAERGIA INC.

Inventor： Sasha ROLLINGS-SCATTERGOOD ,  Andrew BENEDEK ,  Juan JOSSE ,  Ashwani KUMAR

IPC: B09B3/80 ,  B02C23/08 ,  B09B101/25 ,  B09B101/50 ,  B09B101/70 ,  B09B101/75 ,  B09B101/85 ,  B30B9/06

Abstract: The present description relates to press extractors for processing municipal solid waste or source separated organics, and can have large perforations for separation of a wet fraction from a liquid depleted fraction. The extractor can also be operated based on a target plug thickness of the liquid-depleted plug left over in the perforated chamber after compression. The extractors can facilitate good organics extraction yields, and lower operating pressures, among other benefits.

公开(公告)号：US20190002323A1

公开(公告)日：2019-01-03

申请号：US16124763

申请日：2018-09-07

Applicant: ANAERGIA INC.

Inventor： Andrew BENEDEK ,  Juan Carlos JOSSE

IPC: C02F11/10 ,  C10K1/06 ,  C02F11/12 ,  F23G5/027 ,  C02F11/04

Abstract: Organic waste is treated by pyrolysis or by anaerobic digestion followed by pyrolysis of the digestate. The pyrolysis is performed in two staged reactors. The second stage reactor treats char produced in the first stage. The temperature of the first stage reactor is preferably 450 degrees C. or less. The temperature of the second stage reactor is higher than the temperature of the first stage, for example by 50 degrees C. or more. Optionally, there may be a char cooler, a water sprayer, or both downstream of the char outlet of the second reactor. In an exemplary system, a digestate outlet is connected to the inlet of the first pyrolysis reactor. A pyrolysis liquid outlet of the first pyrolysis reactor is connected to the digester. Char produced in the second pyrolysis reactor may be used as a soil amendment.

公开(公告)号：US20160023935A1

公开(公告)日：2016-01-28

申请号：US14877223

申请日：2015-10-07

Applicant: Anaergia Inc.

Inventor： Juan Carlos JOSSE ,  Andrew BENEDEK ,  Diana MOURATO-BENEDEK

IPC: C02F11/04 ,  C02F3/34 ,  C02F3/28

CPC classification number: C02F11/04 ,  C02F1/28 ,  C02F1/52 ,  C02F3/006 ,  C02F3/1268 ,  C02F3/1273 ,  C02F3/208 ,  C02F3/28 ,  C02F3/2826 ,  C02F3/2833 ,  C02F3/2846 ,  C02F3/286 ,  C02F3/2873 ,  C02F3/302 ,  C02F3/307 ,  C02F3/308 ,  C02F3/34 ,  C02F9/00 ,  C02F2101/16 ,  C02F2209/08 ,  C02F2209/10 ,  C02F2209/225 ,  C02F2303/02 ,  C02F2303/20 ,  C02F2303/24 ,  Y02E50/343 ,  Y02W10/12 ,  Y02W10/15 ,  Y02W10/23

Abstract: Low strength wastewater such as municipal sewage is treated using an anaerobic digester. In some examples, a wastewater stream is separated into a solids rich portion and a solids lean portion. The solids lean portion is treated, for example to remove nitrogen. The solids rich portion is treated in an anaerobic digester, preferably with influent or recuperative thickening. In another example, the wastewater stream is fed to an anaerobic digester and solid-liquid separation stages downstream of the digester return active bacteria and undigested organics to the digester. Both cases may use a process train comprising treatment in an anoxic tank followed by a nitritation tank with a portion of the effluent from the nitritation tank recirculated to the anoxic tank to provide nitritation and denitritation.

Abstract translation: 使用厌氧消化器处理城市污水等低强度废水。 在一些实例中，将废水流分离成富含固体的部分和固体贫乏部分。 处理固体贫部，例如去除氮。 固体富含部分在厌氧消化器中处理，优选具有进水或还原性增稠。 在另一个实例中，将废水流送入厌氧消化器，在蒸煮器下游的固液分离段将活性细菌和未消化的有机物返回到蒸煮器。 这两种情况都可以使用包括在缺氧罐中处理的工艺列，接着是氮化槽，其中一部分来自再循环到缺氧罐的硝化槽的流出物提供氮化和脱硝。

公开(公告)号：US20160346788A1

公开(公告)日：2016-12-01

申请号：US15167324

申请日：2016-05-27

Applicant: ANAERGIA INC.

Inventor： Juan Carlos JOSSE ,  Andrew BENEDEK ,  Yaniv D. SCHERSON

IPC: B02C21/00 ,  C02F11/12 ,  C05F7/00 ,  B02C13/00 ,  B30B9/02 ,  C05F9/04 ,  B09B3/00 ,  C02F3/28

CPC classification number: B02C21/00 ,  B02C13/00 ,  B02C2201/063 ,  B03B9/061 ,  B30B9/02 ,  B30B9/12 ,  C02F3/28 ,  C02F11/04 ,  C02F11/122 ,  C02F11/125 ,  C05F7/00 ,  C05F9/04 ,  Y02A40/213 ,  Y02A40/216 ,  Y02P20/145 ,  Y02W30/47

Abstract: Solid waste, for example source separated organics (SSO) or commercial and industrial (C&I) waste or both, are treated by first pressurizing the waste against a screen to produce a solids fraction and a liquid fraction. The liquid fraction can be treated in an anaerobic digester. The solids fraction is pulverized or milled, for example with a hammer mill, preferably after being diluted. The pulverized or milled waste is separated again to provide a second solids faction and a second liquid fraction. The liquid fraction can be treated in an anaerobic digester. The solids fraction is primarily inert and can be landfilled, preferably after being washed.

Abstract translation: 固体废物，例如源分离的有机物（SSO）或商业和工业（C＆I）废物或二者都通过首先将废物加压到筛上以产生固体馏分和液体馏分来处理。 液体馏分可以在厌氧消化器中进行处理。 将固体部分粉碎或研磨，例如用锤式粉碎机，优选稀释后。 粉碎或研磨的废物被再次分离以提供第二固体相和第二液体馏分。 液体馏分可以在厌氧消化器中进行处理。 固体分数主要是惰性的，可以填埋，优选在洗涤后。

公开(公告)号：US20160318787A1

公开(公告)日：2016-11-03

申请号：US15209259

申请日：2016-07-13

Applicant: ANAERGIA INC.

Inventor： Andrew BENEDEK

IPC: C02F11/04 ,  C02F3/28 ,  C02F11/12 ,  C12P5/02

CPC classification number: C02F11/04 ,  B01D61/145 ,  B01D61/147 ,  B01D61/18 ,  B01D2311/04 ,  B01D2311/25 ,  B01D2311/2642 ,  B01D2311/2649 ,  B01D2315/06 ,  C02F3/2853 ,  C02F11/121 ,  C02F2103/20 ,  C02F2203/004 ,  C12M21/04 ,  C12M33/00 ,  C12P5/023 ,  Y02E50/343

Abstract: A process and apparatus for the anaerobic digestion of organic wastes, preferably to also produce a useful biogas, is described. The waste may have a total solids (TS) concentration of 6% or less while a digester is operated at a higher solids concentration, for example with a feed TS concentration of 8-12%. One or more separation stages downstream of the digester separate active bacteria and undigested organics from the digestate, and return separated matter to the digester. Optionally, a feed thickening apparatus and step may be provided upstream of the digester. The upstream thickener and recycle from the downstream separation stages are operated such that the TS of the combined inputs to the digester is within a desired range.

Abstract translation: 描述了有机废物厌氧消化的方法和装置，优选还产生有用的沼气。 废物可以具有6％或更低的总固体（TS）浓度，而消化器以更高的固体浓度操作，例如进料TS浓度为8-12％。 蒸煮器下游的一个或多个分离阶段将活性细菌和未消化的有机物与消化物分离，并将分离的物质返回到蒸煮器。 任选地，可以在蒸煮器的上游设置进料增稠装置和步骤。 操作上游增稠器和从下游分离级循环，使得到蒸煮器的组合输入的TS在期望的范围内。

公开(公告)号：US20160096762A1

公开(公告)日：2016-04-07

申请号：US14965156

申请日：2015-12-10

Applicant: ANAERGIA INC.

Inventor： Juan Carlos JOSSE ,  Andrew BENEDEK

IPC: C02F11/04 ,  C02F11/12 ,  C02F11/14

CPC classification number: C02F11/04 ,  C02F11/121 ,  C02F11/14 ,  C02F2103/20 ,  C02F2103/22 ,  C02F2103/32 ,  C02F2303/24 ,  Y02W10/23

Abstract: A waste stream is treated by anaerobic digestion. A process is described involves a step of separating solids from digestate, and returning separated solids to a digester. Optionally, there may be a step of solids separation in which larger solids are removed from the digester. A process and apparatus are described for treating waste sludge from a wastewater treatment plant in an anaerobic digester. Feed sludge is thickened or solids are separated from digestate and returned to the digester. Additional co-digestion waste may be added to the digester. The process and apparatus may be used in a retrofit of an existing wastewater treatment plant.