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    Device for separating water from sludge
    3.
    发明授权
    Device for separating water from sludge 有权

    公开(公告)号：US10053385B1

    公开(公告)日：2018-08-21

    申请号：US15973731

    申请日：2018-05-08

    申请人： Ziyu Zhu

    发明人： Ziyu Zhu

    IPC分类号： C02F11/12 ,  B01D21/24 ,  C02F11/16

    CPC分类号： C02F11/125 ,  B01D29/03 ,  C05F7/00 ,  C05F17/0027

    摘要： A device for separating water from sludge comprising a processing box, wherein a feeding cylinder is disposed above the processing box, and the feeding cylinder is fixedly connected to the processing box through a plurality of connecting rods; a rotating rod is rotationally connected into the feeding cylinder; a first rotating motor is fixedly connected to one side of the feeding cylinder; the output end of the first rotating motor penetrates through the side wall of the feeding cylinder, and is fixedly connected to the rotating rod; a spiral blade is fixedly sleeved with the rotating rod, and the outer side of the spiral blade is matched with the inner side wall of the feeding cylinder.

    Systems, Methods and Apparatus for Converting Biosolids to Class A Fertilizer
    4.
    发明申请
    Systems, Methods and Apparatus for Converting Biosolids to Class A Fertilizer 审中-公开

    公开(公告)号：US20180186705A1

    公开(公告)日：2018-07-05

    申请号：US15658611

    申请日：2017-07-25

    申请人： Ted Merrell

    发明人： Ted Merrell

    IPC分类号： C05F7/00 ,  A61L9/014 ,  A61L2/04

    CPC分类号： C05F7/00 ,  A61L2/04 ,  A61L9/014 ,  Y02A40/213 ,  Y02E50/343 ,  Y02W30/47

    摘要： A system and methods comprising a greenhouse for predrying a biosolids to reduce volume and weight; a conveyer belt operably connected to the greenhouse for conveying the biosolids from the greenhouse to a pasteurization system; the pasteurization system comprising a burner-fan to introduce hot air to the biosolids; the pasteurization system comprising a heat up belt to accept the biosolids from the greenhouse and a burner-fan for raising the biosolids temperature from ambient to at least 70° C.; the pasteurization system further comprising a pasteurization belt to hold the biosolids at 70° C. for at least thirty minutes; a biofilter system operably connected with the greenhouse and the pasteurization system for reducing odors; and bagging area to collect a final product.

    Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer
    6.
    发明授权
    Process for treating sludge and manufacturing bioorganically-augmented high nitrogen-containing inorganic fertilizer 有权

    公开(公告)号：US09695092B2

    公开(公告)日：2017-07-04

    申请号：US13104127

    申请日：2011-05-10

    申请人： Jeffrey C. Burnham ,  James P. Carr ,  Gary L. Dahms

    发明人： Jeffrey C. Burnham ,  James P. Carr ,  Gary L. Dahms

    IPC分类号： C05F3/00 ,  C05D9/02 ,  C05C3/00 ,  C05F7/00 ,  C05G3/00 ,  C05B7/00 ,  C05C9/00

    CPC分类号： C05C3/005 ,  C05B7/00 ,  C05C3/00 ,  C05C9/00 ,  C05D9/02 ,  C05F7/00 ,  C05G3/0041 ,  Y02A40/213 ,  C05D3/02 ,  C05F3/00

    摘要： The invention describes a new method for treating sludge, which can result in the production of high nitrogen organically-augmented inorganic fertilizer that incorporates municipal sludges or biosolids or organic sludges that can compete with traditional fertilizers such as ammonium phosphate, ammonium sulfate and urea on the commodity fertilizer marketplace. The method takes advantage of the thixotropic property of dewatered biosolids or organic sludge to create a pumpable paste-like material from the biosolids or organic sludge that is then treated with an oxidizer to reduce odorant effects and an acid. This mix is then interacted with concentrated sulfuric and or phosphoric acids and an ammonia source or alternatively a hot or molten melt or salt of ammonium sulfate/phosphate to form a fertilizer mix. The present invention controls the heat, atmospheric pressure and retention time of the fertilizer mix in the reaction vessel. When a fertilizer melt is formed ammoniation is subsequently completed by the specific use of vaporized ammonia. The invention can also be an add-on to commercial production of ammonium salts. The fertilizer produced by the present invention contains more than 8 wt. % nitrogen and preferably 15 wt. % nitrogen. The invention is oriented to be tailored to the biosolids production for individual municipal waste treatment plants in order to keep the fertilizer manufacturing plants of the present invention small with a minimization of logistics and liability.

    METHOD FOR ZERO-DISCHARGE TREATMENT OF HIGH-CONCENTRATION ORGANIC WASTEWATER VIA BIOEVAPORATION
    7.
    发明申请
    METHOD FOR ZERO-DISCHARGE TREATMENT OF HIGH-CONCENTRATION ORGANIC WASTEWATER VIA BIOEVAPORATION 审中-公开
    通过生物量化处理高浓度有机废水的零排放处理方法

    公开(公告)号：US20160272520A1

    公开(公告)日：2016-09-22

    申请号：US14396144

    申请日：2014-04-23

    申请人： MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION FOUNDATION

    发明人： Deokjin JAHNG ,  Benqin YANG

    IPC分类号： C02F3/12 ,  C02F1/04 ,  C02F3/34

    CPC分类号： C02F3/1205 ,  C02F1/04 ,  C02F3/006 ,  C02F3/02 ,  C02F3/348 ,  C02F11/123 ,  C02F2103/32 ,  C02F2209/001 ,  C02F2209/005 ,  C02F2209/02 ,  C02F2209/38 ,  C02F2303/10 ,  C05F7/00 ,  C05F17/0018 ,  Y02A40/213 ,  Y02P20/145 ,  Y02W10/15 ,  Y02W10/30 ,  Y02W30/43

    摘要： Disclosed herein is a method for zero-discharge treatment of high-concentration organic wastewater by mixing sludge with high-concentration organic wastewater. The sludge is biodried sludge prepared by a method including preparing a sludge mixture consisting of belt-pressed sludge and dried sludge; and collecting the sludge mixture when its temperature finally becomes stable by returning to room temperature. The high-concentration organic wastewater used contained small particles of pulverized food waste having a diameter of 1 mm or less. The treatment was performed by decomposing the organic materials using microorganisms contained in the sludge via metabolism, followed by water evaporation caused by the metabolic heat generated by the decomposition of the organic materials, in which the microbial metabolism was performed under an aerobic condition.

    摘要翻译： 本文公开了一种通过将污泥与高浓度有机废水混合来对高浓度有机废水进行零排放处理的方法。 污泥是通过包括制备由带式压浆和干污泥组成的污泥混合物的方法制备的生物泥浆; 并且当其温度通过返回到室温最终变得稳定时收集污泥混合物。 所使用的高浓度有机废水含有直径为1mm以下的粉碎食品垃圾的小颗粒。 通过代谢使用污泥中包含的微生物分解有机材料进行处理，随后由在有氧条件下进行微生物代谢的有机材料分解产生的代谢热引起水分蒸发。

    METHOD FOR PRESERVING THE FERMENTABLE POTENTIAL OF AN ORGANIC SUBSTRATE AND CORRESPONDING FACILITY
    8.
    发明申请
    METHOD FOR PRESERVING THE FERMENTABLE POTENTIAL OF AN ORGANIC SUBSTRATE AND CORRESPONDING FACILITY 有权
    保护有机基质和相关设施的有效潜力的方法

    公开(公告)号：US20160200635A1

    公开(公告)日：2016-07-14

    申请号：US14912565

    申请日：2014-09-08

    申请人： AFYREN

    发明人： Régis NOUAILLE ,  Jérémy PESSIOT

    IPC分类号： C05F3/00 ,  C05F3/06 ,  C05F11/00

    CPC分类号： C05F3/00 ,  C05F5/00 ,  C05F7/00 ,  C05F9/00 ,  C05F11/00 ,  Y02A40/205 ,  Y02A40/209 ,  Y02A40/213 ,  Y02A40/214 ,  Y02E50/343 ,  Y02P20/145 ,  Y02W30/47 ,  C05F3/06

    摘要： The method for preserving the initial fermentable potential of an organic substrate over time, said potential being represented by the methanogenic potential of the biomass, or BMP, of the organic substrate, comprises at least the following steps: a) determining the moisture content (HM) of the organic substrate (2) collected (1), b) comparing (8) the determined moisture content (HM) to a predefined moisture level (HD) of between 0% and 40%, c) storing, in conditions limiting any activity of the microorganisms present in the substrate, and limiting any variation in the moisture level (HM), only the organic substrate (2) of which the moisture content (HM) determined in step a) corresponds to the predefined moisture content (HD), d) if necessary, during steps a) and c), taking measurements of the methanogenic potential of the biomass, e) comparing, if necessary, the measurements of the methanogenic potential of the biomass obtained during step c) to that of step a) and f) adapting the storage conditions to keep the moisture content (HM) of the organic substrate (2) collected (1) at a value that is equal, within 5%, to that of the predefined moisture content (HD). The invention also concerns a facility for implementing the method.

    摘要翻译： 用于保留随时间推移的有机底物的初始可发酵电位的方法，所述潜在性由有机底物的生物质或BMP的产甲烷潜能表示，包括至少以下步骤：a）测定水分含量（HM ）收集的有机基质（2）（1）中，b）比较（8）所测定的含水量（HM）至0％至40％之间的预定水分含量（HD），c）在限制任何 存在于底物中的微生物的活性和限制水分含量（HM）的任何变化，只有步骤a）中测定的水分含量（HM）的有机底物（2）对应于预定水分含量（HD） d）如果需要，在步骤a）和c）期间，测量生物质的产甲烷潜能，e）如果需要，比较步骤c）中获得的生物质的产甲烷潜能与步骤a ）和f） 收集的有机基底（2）的水分含量（HM）（5）与预定水分含量（HD）相等的5％内的值。 本发明还涉及一种用于实现该方法的设备。

    Method for retreating dewatered sludge
    9.
    发明授权
    Method for retreating dewatered sludge 有权
    回收脱水污泥的方法

    公开(公告)号：US09212075B2

    公开(公告)日：2015-12-15

    申请号：US14240275

    申请日：2012-08-20

    申请人： Huansheng Zhong ,  Zhimin Sun ,  Jiacong Wu ,  Jiayu Chen

    发明人： Huansheng Zhong ,  Zhimin Sun ,  Jiacong Wu ,  Jiayu Chen

    IPC分类号： C02F11/14 ,  C02F11/12 ,  C02F11/18 ,  C05D3/02 ,  C05F7/00

    CPC分类号： C02F11/12 ,  C02F11/14 ,  C02F11/18 ,  C05D3/02 ,  C05F7/00 ,  Y02A40/213 ,  Y02W30/43

    摘要： The present invention discloses a method of retreating a viscous semi-solid dewatered sludge having a water content of 70-85%, which is characterized by comprising the steps of: (1) adding a desiccant into said dewatered sludge, and stirring the resulting mixture to produce a mixed sludge having a water content of 50-60%; and (2) drying the mixed sludge to produce a dried granular sludge, which has a water content of 45% or less. The method of retreating the sludge of the present invention can decrease the treatment energy consumption, have a simple dry waste gas treatment, greatly reduce the cost for treating the sludge, accomplish the clean production and the sludge's innocuity, stabilization, minimization, and recycle.

    摘要翻译： 本发明公开了一种回收含水率为70-85％的粘性半固体脱水污泥的方法，其特征在于包括以下步骤：（1）将干燥剂加入所述脱水泥浆中，并搅拌所得混合物 以产生含水量为50-60％的混合污泥; 和（2）干燥混合污泥以产生水含量为45％或更低的干燥颗粒污泥。 本发明污泥回收方法可以降低处理能耗，采用简单干燥废气处理，大大降低污泥处理成本，完成清洁生产，污泥无害化，稳定化，最小化，循环利用。

    Utilization of iron salts to stabilize and/or disinfect biosolids
    10.
    发明授权
    Utilization of iron salts to stabilize and/or disinfect biosolids 有权
    利用铁盐来稳定和/或消毒生物固体

    公开(公告)号：US09199885B2

    公开(公告)日：2015-12-01

    申请号：US14215952

    申请日：2014-03-17

    申请人： Robert S. Reimers ,  Andrew J. Englande, Jr. ,  Norman K. Murray ,  Yue Xu

    发明人： Robert S. Reimers ,  Andrew J. Englande, Jr. ,  Norman K. Murray ,  Yue Xu

    IPC分类号： C05F7/00 ,  C02F11/14 ,  C05G3/00 ,  C05D9/02

    CPC分类号： C05G3/00 ,  C02F11/004 ,  C02F11/06 ,  C02F11/14 ,  C02F2101/305 ,  C02F2303/02 ,  C02F2303/04 ,  C02F2305/00 ,  C02F2305/02 ,  C05D9/02 ,  C05F7/00 ,  Y02A40/213

    摘要： In order to render sewage sludge suitable for beneficial purposes, it must be disinfected and stabilized. EDC deactivation is rapidly becoming a desirable result of any sludge or biosolids treatment process. Disclosed herein is a process of treating sewage sludge so as to stabilize the sludge that involves the presence of an iron-containing compound during dewatering of the sludge. Process embodiments described also achieve biosolid samples that have reduced EDC activity, Other embodiments disclosed involve use of a combination of iron salts ferrate and ferric chloride that are added to wastewater sludge in the dewatering step before heat drying. The biosolids resulting from sludge treated with aniron-containing compound are able to resist putrefaction for more than two to three weeks.

    摘要翻译： 为了使污水污泥适合用于有益目的，必须进行消毒和稳定。 EDC失活正迅速成为任何污泥或生物固体处理工艺的理想结果。 本文公开了一种处理污泥的方法，以便在污泥脱水期间稳定涉及含铁化合物的存在的污泥。 所描述的方法实施方案还实现了具有降低的EDC活性的生物固体样品。所公开的其它实施方案涉及在加热干燥之前在脱水步骤中加入到废水污泥中的铁盐和铁氯化物的组合的使用。 由含铁化合物处理的污泥产生的生物固体能够抵抗腐败超过两至三周。